X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=genbindings.py;h=56d36da4b653c2222155052bd072810a0cd417e6;hb=3c88e2f6e84c7f38723ff162ca72d613df5eeb97;hp=b70b0e4839d2ad11ffbb5b1c4d4597be14940c4e;hpb=f70bcf067b290c88dc9dc26f4aca86475e5f6ed7;p=ldk-java diff --git a/genbindings.py b/genbindings.py index b70b0e48..56d36da4 100755 --- a/genbindings.py +++ b/genbindings.py @@ -16,6 +16,137 @@ import java.util.Arrays; @SuppressWarnings("unchecked") // We correctly assign various generic arrays """ +c_file_pfx = """#include \"org_ldk_impl_bindings.h\" +#include +#include +#include +#include +""" + +if sys.argv[5] == "false": + c_file_pfx = c_file_pfx + """#define MALLOC(a, _) malloc(a) +#define FREE(p) if ((long)(p) > 1024) { free(p); } +#define DO_ASSERT(a) (void)(a) +#define CHECK(a) +""" +else: + c_file_pfx = c_file_pfx + """#include +// Always run a, then assert it is true: +#define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0) +// Assert a is true or do nothing +#define CHECK(a) DO_ASSERT(a) + +// Running a leak check across all the allocations and frees of the JDK is a mess, +// so instead we implement our own naive leak checker here, relying on the -wrap +// linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated +// and free'd in Rust or C across the generated bindings shared library. +#include +#include +#include +static mtx_t allocation_mtx; + +void __attribute__((constructor)) init_mtx() { + DO_ASSERT(mtx_init(&allocation_mtx, mtx_plain) == thrd_success); +} + +#define BT_MAX 128 +typedef struct allocation { + struct allocation* next; + void* ptr; + const char* struct_name; + void* bt[BT_MAX]; + int bt_len; +} allocation; +static allocation* allocation_ll = NULL; + +void* __real_malloc(size_t len); +void* __real_calloc(size_t nmemb, size_t len); +static void new_allocation(void* res, const char* struct_name) { + allocation* new_alloc = __real_malloc(sizeof(allocation)); + new_alloc->ptr = res; + new_alloc->struct_name = struct_name; + new_alloc->bt_len = backtrace(new_alloc->bt, BT_MAX); + DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success); + new_alloc->next = allocation_ll; + allocation_ll = new_alloc; + DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success); +} +static void* MALLOC(size_t len, const char* struct_name) { + void* res = __real_malloc(len); + new_allocation(res, struct_name); + return res; +} +void __real_free(void* ptr); +static void alloc_freed(void* ptr) { + allocation* p = NULL; + DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success); + allocation* it = allocation_ll; + while (it->ptr != ptr) { + p = it; it = it->next; + if (it == NULL) { + fprintf(stderr, "Tried to free unknown pointer %p at:\\n", ptr); + void* bt[BT_MAX]; + int bt_len = backtrace(bt, BT_MAX); + backtrace_symbols_fd(bt, bt_len, STDERR_FILENO); + fprintf(stderr, "\\n\\n"); + DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success); + return; // addrsan should catch malloc-unknown and print more info than we have + } + } + if (p) { p->next = it->next; } else { allocation_ll = it->next; } + DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success); + DO_ASSERT(it->ptr == ptr); + __real_free(it); +} +static void FREE(void* ptr) { + if ((long)ptr < 1024) return; // Rust loves to create pointers to the NULL page for dummys + alloc_freed(ptr); + __real_free(ptr); +} + +void* __wrap_malloc(size_t len) { + void* res = __real_malloc(len); + new_allocation(res, "malloc call"); + return res; +} +void* __wrap_calloc(size_t nmemb, size_t len) { + void* res = __real_calloc(nmemb, len); + new_allocation(res, "calloc call"); + return res; +} +void __wrap_free(void* ptr) { + if (ptr == NULL) return; + alloc_freed(ptr); + __real_free(ptr); +} + +void* __real_realloc(void* ptr, size_t newlen); +void* __wrap_realloc(void* ptr, size_t len) { + if (ptr != NULL) alloc_freed(ptr); + void* res = __real_realloc(ptr, len); + new_allocation(res, "realloc call"); + return res; +} +void __wrap_reallocarray(void* ptr, size_t new_sz) { + // Rust doesn't seem to use reallocarray currently + assert(false); +} + +void __attribute__((destructor)) check_leaks() { + for (allocation* a = allocation_ll; a != NULL; a = a->next) { + fprintf(stderr, "%s %p remains:\\n", a->struct_name, a->ptr); + backtrace_symbols_fd(a->bt, a->bt_len, STDERR_FILENO); + fprintf(stderr, "\\n\\n"); + } + DO_ASSERT(allocation_ll == NULL); +} +""" + +c_file = "" +def write_c(s): + global c_file + c_file += s + class TypeInfo: def __init__(self, is_native_primitive, rust_obj, java_ty, java_fn_ty_arg, java_hu_ty, c_ty, passed_as_ptr, is_ptr, var_name, arr_len, arr_access, subty=None): self.is_native_primitive = is_native_primitive @@ -31,6 +162,7 @@ class TypeInfo: self.arr_access = arr_access self.subty = subty self.pass_by_ref = is_ptr + self.requires_clone = None class ConvInfo: def __init__(self, ty_info, arg_name, arg_conv, arg_conv_name, arg_conv_cleanup, ret_conv, ret_conv_name, to_hu_conv, to_hu_conv_name, from_hu_conv): @@ -54,16 +186,16 @@ class ConvInfo: self.from_hu_conv = from_hu_conv def print_ty(self): - out_c.write(self.c_ty) + write_c(self.c_ty) out_java.write(self.java_ty) def print_name(self): if self.arg_name != "": out_java.write(" " + self.arg_name) - out_c.write(" " + self.arg_name) + write_c(" " + self.arg_name) else: out_java.write(" arg") - out_c.write(" arg") + write_c(" arg") def camel_to_snake(s): # Convert camel case to snake case, in a way that appears to match cbindgen @@ -98,6 +230,9 @@ trait_structs = set() result_types = set() tuple_types = {} +def is_common_base_ext(struct_name): + return struct_name in complex_enums or struct_name in opaque_structs or struct_name in trait_structs or struct_name in result_types + var_is_arr_regex = re.compile("\(\*([A-za-z0-9_]*)\)\[([a-z0-9]*)\]") var_ty_regex = re.compile("([A-za-z_0-9]*)(.*)") java_c_types_none_allowed = True # Unset when we do the real pass that populates the above sets @@ -170,6 +305,11 @@ def java_c_types(fn_arg, ret_arr_len): rust_obj = "LDKCVec_u8Z" assert var_is_arr_regex.match(fn_arg[8:]) arr_access = "data" + elif fn_arg.startswith("LDKTransaction"): + fn_arg = "uint8_t (*" + fn_arg[15:] + ")[datalen]" + rust_obj = "LDKTransaction" + assert var_is_arr_regex.match(fn_arg[8:]) + arr_access = "data" elif fn_arg.startswith("LDKCVecTempl_") or fn_arg.startswith("LDKCVec_"): is_ptr = False if "*" in fn_arg: @@ -342,6 +482,7 @@ fn_ret_arr_regex = re.compile("(.*) \(\*(.*)\((.*)\)\)\[([0-9]*)\];$") reg_fn_regex = re.compile("([A-Za-z_0-9\* ]* \*?)([a-zA-Z_0-9]*)\((.*)\);$") clone_fns = set() constructor_fns = {} +c_array_class_caches = set() with open(sys.argv[1]) as in_h: for line in in_h: reg_fn = reg_fn_regex.match(line) @@ -361,7 +502,7 @@ with open(sys.argv[1]) as in_h: continue java_c_types_none_allowed = False # C structs created by cbindgen are declared in dependency order -with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.argv[4], "w") as out_c: +with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: def map_type(fn_arg, print_void, ret_arr_len, is_free, holds_ref): ty_info = java_c_types(fn_arg, ret_arr_len) return map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref) @@ -384,14 +525,20 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg arg_conv_cleanup = None if not arr_len.isdigit(): arg_conv = ty_info.rust_obj + " " + arr_name + "_ref;\n" - arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = (*_env)->GetByteArrayElements (_env, " + arr_name + ", NULL);\n" - arg_conv = arg_conv + arr_name + "_ref." + arr_len + " = (*_env)->GetArrayLength (_env, " + arr_name + ");" - arg_conv_cleanup = "(*_env)->ReleaseByteArrayElements(_env, " + arr_name + ", (int8_t*)" + arr_name + "_ref." + ty_info.arr_access + ", 0);" + arg_conv = arg_conv + arr_name + "_ref." + arr_len + " = (*_env)->GetArrayLength (_env, " + arr_name + ");\n" + if (not ty_info.is_ptr or not holds_ref) and ty_info.rust_obj != "LDKu8slice": + arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = MALLOC(" + arr_name + "_ref." + arr_len + ", \"" + ty_info.rust_obj + " Bytes\");\n" + arg_conv = arg_conv + "(*_env)->GetByteArrayRegion(_env, " + arr_name + ", 0, " + arr_name + "_ref." + arr_len + ", " + arr_name + "_ref." + ty_info.arr_access + ");" + else: + arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = (*_env)->GetByteArrayElements (_env, " + arr_name + ", NULL);" + arg_conv_cleanup = "(*_env)->ReleaseByteArrayElements(_env, " + arr_name + ", (int8_t*)" + arr_name + "_ref." + ty_info.arr_access + ", 0);" + if ty_info.rust_obj == "LDKTransaction": + arg_conv = arg_conv + "\n" + arr_name + "_ref.data_is_owned = " + str(holds_ref).lower() + ";" ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "") ret_conv = (ret_conv[0], ";\njbyteArray " + arr_name + "_arr = (*_env)->NewByteArray(_env, " + arr_name + "_var." + arr_len + ");\n") ret_conv = (ret_conv[0], ret_conv[1] + "(*_env)->SetByteArrayRegion(_env, " + arr_name + "_arr, 0, " + arr_name + "_var." + arr_len + ", " + arr_name + "_var." + ty_info.arr_access + ");") - if not holds_ref and ty_info.rust_obj == "LDKCVec_u8Z": - ret_conv = (ret_conv[0], ret_conv[1] + "\nCVec_u8Z_free(" + arr_name + "_var);") + if not holds_ref and ty_info.rust_obj != "LDKu8slice": + ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);") elif ty_info.rust_obj is not None: arg_conv = ty_info.rust_obj + " " + arr_name + "_ref;\n" arg_conv = arg_conv + "CHECK((*_env)->GetArrayLength (_env, " + arr_name + ") == " + arr_len + ");\n" @@ -411,6 +558,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg conv_name = "arr_conv_" + str(len(ty_info.java_hu_ty)) idxc = chr(ord('a') + (len(ty_info.java_hu_ty) % 26)) ty_info.subty.var_name = conv_name + ty_info.subty.requires_clone = not ty_info.is_ptr or not holds_ref subty = map_type_with_info(ty_info.subty, False, None, is_free, holds_ref) if arr_name == "": arr_name = "arg" @@ -459,7 +607,10 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg ret_conv = (ret_conv[0], ret_conv[1] + "\n\t" + arr_name + "_arr_ptr[" + idxc + "] = " + subty.ret_conv_name + ";\n") ret_conv = (ret_conv[0], ret_conv[1] + "}\n(*_env)->ReleasePrimitiveArrayCritical(_env, " + arr_name + "_arr, " + arr_name + "_arr_ptr, 0);") else: - ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = (*_env)->NewObjectArray(_env, " + arr_name + "_var." + arr_len + ", NULL, NULL);\n") # XXX: second arg needs to be a clazz! + assert ty_info.java_fn_ty_arg.startswith("[") + clz_var = ty_info.java_fn_ty_arg[1:].replace("[", "arr_of_") + c_array_class_caches.add(clz_var) + ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = (*_env)->NewObjectArray(_env, " + arr_name + "_var." + arr_len + ", " + clz_var + "_clz, NULL);\n") ret_conv = (ret_conv[0], ret_conv[1] + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n") ret_conv = (ret_conv[0], ret_conv[1] + "\t" + subty.ret_conv[0].replace("\n", "\n\t")) ret_conv = (ret_conv[0], ret_conv[1] + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t")) @@ -508,201 +659,199 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg "jstring " + ty_info.var_name + "_conv = (*_env)->NewStringUTF(_env, " + ty_info.var_name + "_str." + ty_info.arr_access + ");\n" + "FREE(" + ty_info.var_name + "_buf);"), ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) - elif ty_info.var_name != "": - # If we have a parameter name, print it (noting that it may indicate its a pointer) + elif ty_info.var_name == "" and not print_void: + # We don't have a parameter name, and want one, just call it arg if ty_info.rust_obj is not None: - assert(ty_info.passed_as_ptr) + assert(not is_free or ty_info.rust_obj not in opaque_structs) + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = ty_info.rust_obj + " arg_conv = *(" + ty_info.rust_obj + "*)arg;\nFREE((void*)arg);", + arg_conv_name = "arg_conv", arg_conv_cleanup = None, + ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 7", to_hu_conv_name = None, from_hu_conv = None) + else: + assert(not is_free) + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = None, arg_conv_name = "arg", arg_conv_cleanup = None, + ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 8", to_hu_conv_name = None, from_hu_conv = None) + elif ty_info.rust_obj is None: + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = None, arg_conv_name = ty_info.var_name, arg_conv_cleanup = None, + ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) + else: + if ty_info.var_name == "": + ty_info.var_name = "ret" + + if ty_info.rust_obj in opaque_structs: opaque_arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv;\n" opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.inner = (void*)(" + ty_info.var_name + " & (~1));\n" - opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = (" + ty_info.var_name + " & 1) || (" + ty_info.var_name + " == 0);" - if not ty_info.is_ptr and not is_free and not ty_info.pass_by_ref: + if ty_info.is_ptr and holds_ref: + opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = false;" + else: + opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = (" + ty_info.var_name + " & 1) || (" + ty_info.var_name + " == 0);" + if not is_free and (not ty_info.is_ptr or not holds_ref or ty_info.requires_clone == True) and ty_info.requires_clone != False: if (ty_info.java_hu_ty + "_clone") in clone_fns: # TODO: This is a bit too naive, even with the checks above, we really need to know if rust wants a ref or not, not just if its pass as a ptr. opaque_arg_conv = opaque_arg_conv + "\nif (" + ty_info.var_name + "_conv.inner != NULL)\n" opaque_arg_conv = opaque_arg_conv + "\t" + ty_info.var_name + "_conv = " + ty_info.java_hu_ty + "_clone(&" + ty_info.var_name + "_conv);" elif ty_info.passed_as_ptr: opaque_arg_conv = opaque_arg_conv + "\n// Warning: we may need a move here but can't clone!" - if not ty_info.is_ptr: - if ty_info.rust_obj in unitary_enums: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = " + ty_info.rust_obj + "_from_java(_env, " + ty_info.var_name + ");", - arg_conv_name = ty_info.var_name + "_conv", - arg_conv_cleanup = None, - ret_conv = ("jclass " + ty_info.var_name + "_conv = " + ty_info.rust_obj + "_to_java(_env, ", ");"), - ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) - if ty_info.rust_obj in opaque_structs: - ret_conv_suf = ";\nCHECK((((long)" + ty_info.var_name + "_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.\n" - ret_conv_suf = ret_conv_suf + "CHECK((((long)&" + ty_info.var_name + "_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.\n" - if holds_ref: - ret_conv_suf = ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner & ~1;" + + opaque_ret_conv_suf = ";\n" + if not holds_ref and ty_info.is_ptr and (ty_info.java_hu_ty + "_clone") in clone_fns: # is_ptr, not holds_ref implies passing a pointed-to value to java, which needs copied + opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "->inner != NULL)\n" + opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_var = " + ty_info.java_hu_ty + "_clone(" + ty_info.var_name + ");\n" + elif not holds_ref and ty_info.is_ptr: + opaque_ret_conv_suf = opaque_ret_conv_suf + "// Warning: we may need a move here but can't clone!\n" + + opaque_ret_conv_suf = opaque_ret_conv_suf + "CHECK((((long)" + ty_info.var_name + "_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.\n" + opaque_ret_conv_suf = opaque_ret_conv_suf + "CHECK((((long)&" + ty_info.var_name + "_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.\n" + if holds_ref: + opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner & ~1;" + else: + opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner;\n" + opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "_var.is_owned) {\n" + opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_ref |= 1;\n" + opaque_ret_conv_suf = opaque_ret_conv_suf + "}" + + if ty_info.is_ptr: + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = opaque_arg_conv, arg_conv_name = "&" + ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = *", opaque_ret_conv_suf), + ret_conv_name = ty_info.var_name + "_ref", + to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");", + to_hu_conv_name = ty_info.var_name + "_hu_conv", + from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")")) + else: + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = opaque_arg_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = ", opaque_ret_conv_suf), + ret_conv_name = ty_info.var_name + "_ref", + to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");", + to_hu_conv_name = ty_info.var_name + "_hu_conv", + from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")")) + + if not ty_info.is_ptr: + if ty_info.rust_obj in unitary_enums: + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = " + ty_info.rust_obj + "_from_java(_env, " + ty_info.var_name + ");", + arg_conv_name = ty_info.var_name + "_conv", + arg_conv_cleanup = None, + ret_conv = ("jclass " + ty_info.var_name + "_conv = " + ty_info.rust_obj + "_to_java(_env, ", ");"), + ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) + base_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)" + ty_info.var_name + ";"; + if ty_info.rust_obj in trait_structs: + if not is_free: + base_conv = base_conv + "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n" + base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n" + base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv.this_arg);\n}" + else: + base_conv = base_conv + "\n" + "FREE((void*)" + ty_info.var_name + ");" + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"), + ret_conv_name = "(long)ret", + to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, ret);\nret_hu_conv.ptrs_to.add(this);", + to_hu_conv_name = "ret_hu_conv", + from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")")) + if ty_info.rust_obj != "LDKu8slice": + # Don't bother free'ing slices passed in - Rust doesn't auto-free the + # underlying unlike Vecs, and it gives Java more freedom. + base_conv = base_conv + "\nFREE((void*)" + ty_info.var_name + ");"; + if ty_info.rust_obj in complex_enums: + ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";") + if not holds_ref: + ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_copy = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n", "") + if ty_info.requires_clone == True: # Set in object array mapping + if (ty_info.java_hu_ty + "_clone") in clone_fns: + ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = " + ty_info.java_hu_ty + "_clone(&", ");\n") + else: + ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", "; // XXX: We likely need to clone here, but no _clone fn is available!\n") else: - ret_conv_suf = ret_conv_suf + "long " + ty_info.var_name + "_ref;\n" - ret_conv_suf = ret_conv_suf + "if (" + ty_info.var_name + "_var.is_owned) {\n" - ret_conv_suf = ret_conv_suf + "\t" + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner | 1;\n" - ret_conv_suf = ret_conv_suf + "} else {\n" - ret_conv_suf = ret_conv_suf + "\t" + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner & ~1;\n" - ret_conv_suf = ret_conv_suf + "}" - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = opaque_arg_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, - ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = ", ret_conv_suf), - ret_conv_name = ty_info.var_name + "_ref", - to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");", - to_hu_conv_name = ty_info.var_name + "_hu_conv", - from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")")) - base_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)" + ty_info.var_name + ";"; - if ty_info.rust_obj in trait_structs: - if not is_free: - base_conv = base_conv + "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n" - base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n" - base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv.this_arg);\n}" + ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", ";\n") + ret_conv = (ret_conv[0], ret_conv[1] + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_copy;") + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = ret_conv, ret_conv_name = ty_info.var_name + "_ref", + to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");\n" + ty_info.var_name + "_hu_conv.ptrs_to.add(this);", + to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + ".ptr", "")) + if ty_info.rust_obj in result_types: + assert not ty_info.is_ptr and not holds_ref # Otherwise we shouldn't be MALLOC'ing + ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_conv = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_conv = ", ";") + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_conv", + to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");\n" + ty_info.var_name + "_hu_conv.ptrs_to.add(this);", + to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + " != null ? " + ty_info.var_name + ".ptr : 0", "")) + if ty_info.rust_obj in tuple_types: + from_hu_conv = "bindings." + tuple_types[ty_info.rust_obj][1].replace("LDK", "") + "_new(" + to_hu_conv_pfx = "" + to_hu_conv_sfx = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " + ty_info.java_hu_ty + "(" + for idx, conv in enumerate(tuple_types[ty_info.rust_obj][0]): + if idx != 0: + to_hu_conv_sfx = to_hu_conv_sfx + ", " + from_hu_conv = from_hu_conv + ", " + conv.var_name = ty_info.var_name + "_" + chr(idx + ord("a")) + conv_map = map_type_with_info(conv, False, None, is_free, holds_ref) + to_hu_conv_pfx = to_hu_conv_pfx + conv.java_ty + " " + ty_info.var_name + "_" + chr(idx + ord("a")) + " = " + "bindings." + tuple_types[ty_info.rust_obj][1] + "_get_" + chr(idx + ord("a")) + "(" + ty_info.var_name + ");\n" + if conv_map.to_hu_conv is not None: + to_hu_conv_pfx = to_hu_conv_pfx + conv_map.to_hu_conv + ";\n" + to_hu_conv_sfx = to_hu_conv_sfx + conv_map.to_hu_conv_name else: - base_conv = base_conv + "\n" + "FREE((void*)" + ty_info.var_name + ");" - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, - ret_conv = ("CANT PASS TRAIT TO Java?", ""), ret_conv_name = "NO CONV POSSIBLE", - to_hu_conv = "DUMMY", to_hu_conv_name = None, - from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")")) - if ty_info.rust_obj != "LDKu8slice": - # Don't bother free'ing slices passed in - Rust doesn't auto-free the - # underlying unlike Vecs, and it gives Java more freedom. - base_conv = base_conv + "\nFREE((void*)" + ty_info.var_name + ");"; - if ty_info.rust_obj in complex_enums: - ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";") - if not ty_info.is_ptr and not holds_ref and (ty_info.java_hu_ty + "_clone") in clone_fns: - ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_copy = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n", "") - ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = " + ty_info.java_hu_ty + "_clone(&", ");\n") - ret_conv = (ret_conv[0], ret_conv[1] + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_copy;") - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, - ret_conv = ret_conv, ret_conv_name = ty_info.var_name + "_ref", - to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");", - to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + ".conv_to_c()", "")) - if ty_info.rust_obj in tuple_types: - to_hu_conv_pfx = "" - to_hu_conv_sfx = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " + ty_info.java_hu_ty + "(" - for idx, conv in enumerate(tuple_types[ty_info.rust_obj][0]): - if idx != 0: - to_hu_conv_sfx = to_hu_conv_sfx + ", " - conv.var_name = ty_info.var_name + "_" + chr(idx + ord("a")) - conv_map = map_type_with_info(conv, False, None, is_free, holds_ref) - to_hu_conv_pfx = to_hu_conv_pfx + conv.java_ty + " " + ty_info.var_name + "_" + chr(idx + ord("a")) + " = " + "bindings." + tuple_types[ty_info.rust_obj][1] + "_get_" + chr(idx + ord("a")) + "(" + ty_info.var_name + ");\n" - if conv_map.to_hu_conv is not None: - to_hu_conv_pfx = to_hu_conv_pfx + conv_map.to_hu_conv + ";\n" - to_hu_conv_sfx = to_hu_conv_sfx + conv_map.to_hu_conv_name; - else: - to_hu_conv_sfx = to_hu_conv_sfx + ty_info.var_name + "_" + chr(idx + ord("a")); + to_hu_conv_sfx = to_hu_conv_sfx + ty_info.var_name + "_" + chr(idx + ord("a")) + if conv_map.from_hu_conv is not None: + from_hu_conv = from_hu_conv + conv_map.from_hu_conv[0].replace(ty_info.var_name + "_" + chr(idx + ord("a")), ty_info.var_name + "." + chr(idx + ord("a"))) + if conv_map.from_hu_conv[1] != "": + from_hu_conv = from_hu_conv + "/*XXX: " + conv_map.from_hu_conv[1] + "*/" + else: + from_hu_conv = from_hu_conv + ty_info.var_name + "." + chr(idx + ord("a")) + + if not ty_info.is_ptr and not holds_ref: return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, - ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";"), ret_conv_name = ty_info.var_name + "_ref", - to_hu_conv = to_hu_conv_pfx + to_hu_conv_sfx + ");", to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = ("/*TODO b*/0", "")) - # The manually-defined types - TxOut and Transaction + ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_ref = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_ref = ", ";"), + ret_conv_name = "(long)" + ty_info.var_name + "_ref", + to_hu_conv = to_hu_conv_pfx + to_hu_conv_sfx + ");", to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (from_hu_conv + ")", "")) return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";"), ret_conv_name = ty_info.var_name + "_ref", - to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " +ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");", - to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = ("/*TODO 1*/0", "")) - else: - assert(not is_free) - if ty_info.rust_obj in opaque_structs: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = opaque_arg_conv, arg_conv_name = "&" + ty_info.var_name + "_conv", arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 2", to_hu_conv_name = None, - from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")")) # its a pointer, no conv needed - elif ty_info.rust_obj in trait_structs: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";", - arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 2.5", to_hu_conv_name = None, - from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")")) # its a pointer, no conv needed + to_hu_conv = to_hu_conv_pfx + to_hu_conv_sfx + ");", to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (from_hu_conv + ")", "")) + + # The manually-defined types - TxOut and Transaction + assert ty_info.rust_obj == "LDKTxOut" + return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, + arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";"), ret_conv_name = ty_info.var_name + "_ref", + to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " +ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");", + to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (ty_info.var_name + ".ptr", "")) + elif ty_info.is_ptr: + assert(not is_free) + if ty_info.rust_obj in complex_enums: return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";", arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 3", to_hu_conv_name = None, from_hu_conv = None) # its a pointer, no conv needed - elif ty_info.is_ptr: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = None, arg_conv_name = ty_info.var_name, arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 4", to_hu_conv_name = None, from_hu_conv = None) - else: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = None, arg_conv_name = ty_info.var_name, arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) - elif not print_void: - # We don't have a parameter name, and want one, just call it arg - if ty_info.rust_obj is not None: - assert(not is_free or ty_info.rust_obj not in opaque_structs) - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = ty_info.rust_obj + " arg_conv = *(" + ty_info.rust_obj + "*)arg;\nFREE((void*)arg);", - arg_conv_name = "arg_conv", arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 7", to_hu_conv_name = None, from_hu_conv = None) - else: - assert(not is_free) - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = None, arg_conv_name = "arg", arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 8", to_hu_conv_name = None, from_hu_conv = None) - else: - # We don't have a parameter name, and don't want one (cause we're returning) - if ty_info.rust_obj is not None: - if not ty_info.is_ptr: - if ty_info.rust_obj in unitary_enums: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = ty_info.rust_obj + " ret_conv = " + ty_info.rust_obj + "_from_java(_env, ret);", - arg_conv_name = "ret_conv", arg_conv_cleanup = None, - ret_conv = ("jclass ret = " + ty_info.rust_obj + "_to_java(_env, ", ");"), ret_conv_name = "ret", - to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) - if ty_info.rust_obj in complex_enums or ty_info.rust_obj in result_types: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"), - ret_conv_name = "(long)ret", - arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None, - to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(ret);\nret_hu_conv.ptrs_to.add(this);", - to_hu_conv_name = "ret_hu_conv", from_hu_conv = (ty_info.var_name + ".conv_to_c()", "")) - if ty_info.rust_obj in opaque_structs: - # If we're returning a newly-allocated struct, we don't want Rust to ever - # free, instead relying on the Java GC to lose the ref. We undo this in - # any _free function. - # To avoid any issues, we first assert that the incoming object is non-ref. - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - ret_conv = (ty_info.rust_obj + " ret = ", ";"), - ret_conv_name = "((long)ret.inner) | (ret.is_owned ? 1 : 0)", - arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None, - to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, ret);", - to_hu_conv_name = "ret_hu_conv", from_hu_conv = None) - elif ty_info.rust_obj in trait_structs: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"), - ret_conv_name = "(long)ret", - arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None, - to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, ret);\nret_hu_conv.ptrs_to.add(this);", - to_hu_conv_name = "ret_hu_conv", from_hu_conv = None) - else: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"), - ret_conv_name = "(long)ret", - arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None, - to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, ret);\nret_hu_conv.ptrs_to.add(this);", - to_hu_conv_name = "ret_hu_conv", from_hu_conv = None) + ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name, + to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");", + to_hu_conv_name = ty_info.var_name + "_hu_conv", + from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")")) elif ty_info.rust_obj in trait_structs: return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - ret_conv = ("long ret = (long)", ";"), ret_conv_name = "ret", - arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None, + arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";", + arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name, to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, ret);\nret_hu_conv.ptrs_to.add(this);", - to_hu_conv_name = "ret_hu_conv", from_hu_conv = None) - else: - return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - ret_conv = ("long ret = (long)", ";"), ret_conv_name = "ret", - arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None, - to_hu_conv = "TODO c", to_hu_conv_name = None, from_hu_conv = None) - else: + to_hu_conv_name = "ret_hu_conv", + from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")")) return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, - arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None, - ret_conv = None, ret_conv_name = None, - to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) + arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";", + arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None, + ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name, + to_hu_conv = "TODO 3", to_hu_conv_name = None, from_hu_conv = None) # its a pointer, no conv needed + assert False # We should have handled every case by now. def map_fn(line, re_match, ret_arr_len, c_call_string): out_java.write("\t// " + line) out_java.write("\tpublic static native ") - out_c.write("JNIEXPORT ") + write_c("JNIEXPORT ") is_free = re_match.group(2).endswith("_free") struct_meth = re_match.group(2).split("_")[0] @@ -714,7 +863,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg ret_conv_pfx, ret_conv_sfx = ret_info.ret_conv out_java.write(" " + re_match.group(2) + "(") - out_c.write(" JNICALL Java_org_ldk_impl_bindings_" + re_match.group(2).replace('_', '_1') + "(JNIEnv * _env, jclass _b") + write_c(" JNICALL Java_org_ldk_impl_bindings_" + re_match.group(2).replace('_', '_1') + "(JNIEnv * _env, jclass _b") arg_names = [] default_constructor_args = {} @@ -724,21 +873,18 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg if idx != 0: out_java.write(", ") if arg != "void": - out_c.write(", ") - arg_conv_info = map_type(arg, False, None, is_free, False) + write_c(", ") + arg_conv_info = map_type(arg, False, None, is_free, True) if arg_conv_info.c_ty != "void": arg_conv_info.print_ty() arg_conv_info.print_name() if arg_conv_info.arg_name == "this_ptr" or arg_conv_info.arg_name == "this_arg": takes_self = True - if arg_conv_info.passed_as_ptr and not arg_conv_info.rust_obj in opaque_structs: - if not arg_conv_info.rust_obj in trait_structs and not arg_conv_info.rust_obj in unitary_enums: - args_known = False if arg_conv_info.arg_conv is not None and "Warning" in arg_conv_info.arg_conv: if arg_conv_info.rust_obj in constructor_fns: assert not is_free for explode_arg in constructor_fns[arg_conv_info.rust_obj].split(','): - explode_arg_conv = map_type(explode_arg, False, None, False, False) + explode_arg_conv = map_type(explode_arg, False, None, False, True) if explode_arg_conv.c_ty == "void": # We actually want to handle this case, but for now its only used in NetGraphMsgHandler::new() # which ends up resulting in a redundant constructor - both without arguments for the NetworkGraph. @@ -783,45 +929,45 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg out_java.write(");\n") - out_c.write(") {\n") + write_c(") {\n") if out_java_struct is not None: out_java_struct.write(") {\n") for info in arg_names: if info.arg_conv is not None: - out_c.write("\t" + info.arg_conv.replace('\n', "\n\t") + "\n") + write_c("\t" + info.arg_conv.replace('\n', "\n\t") + "\n") if ret_info.ret_conv is not None: - out_c.write("\t" + ret_conv_pfx.replace('\n', '\n\t')) + write_c("\t" + ret_conv_pfx.replace('\n', '\n\t')) elif ret_info.c_ty != "void": - out_c.write("\t" + ret_info.c_ty + " ret_val = ") + write_c("\t" + ret_info.c_ty + " ret_val = ") else: - out_c.write("\t") + write_c("\t") if c_call_string is None: - out_c.write(re_match.group(2) + "(") + write_c(re_match.group(2) + "(") else: - out_c.write(c_call_string) + write_c(c_call_string) for idx, info in enumerate(arg_names): if info.arg_conv_name is not None: if idx != 0: - out_c.write(", ") + write_c(", ") elif c_call_string is not None: continue - out_c.write(info.arg_conv_name) - out_c.write(")") + write_c(info.arg_conv_name) + write_c(")") if ret_info.ret_conv is not None: - out_c.write(ret_conv_sfx.replace('\n', '\n\t')) + write_c(ret_conv_sfx.replace('\n', '\n\t')) else: - out_c.write(";") + write_c(";") for info in arg_names: if info.arg_conv_cleanup is not None: - out_c.write("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t")) + write_c("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t")) if ret_info.ret_conv is not None: - out_c.write("\n\treturn " + ret_info.ret_conv_name + ";") + write_c("\n\treturn " + ret_info.ret_conv_name + ";") elif ret_info.c_ty != "void": - out_c.write("\n\treturn ret_val;") - out_c.write("\n}\n\n") + write_c("\n\treturn ret_val;") + write_c("\n}\n\n") if out_java_struct is not None: out_java_struct.write("\t\t") if ret_info.java_ty != "void": @@ -872,8 +1018,8 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg with open(sys.argv[3] + "/enums/" + struct_name + ".java", "w") as out_java_enum: out_java_enum.write("package org.ldk.enums;\n\n") unitary_enums.add(struct_name) - out_c.write("static inline " + struct_name + " " + struct_name + "_from_java(JNIEnv *env, jclass val) {\n") - out_c.write("\tswitch ((*env)->CallIntMethod(env, val, ordinal_meth)) {\n") + write_c("static inline " + struct_name + " " + struct_name + "_from_java(JNIEnv *env, jclass val) {\n") + write_c("\tswitch ((*env)->CallIntMethod(env, val, ordinal_meth)) {\n") ord_v = 0 for idx, struct_line in enumerate(field_lines): if idx == 0: @@ -889,38 +1035,38 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg assert(struct_line == "") else: out_java_enum.write(struct_line + "\n") - out_c.write("\t\tcase %d: return %s;\n" % (ord_v, struct_line.strip().strip(","))) + write_c("\t\tcase %d: return %s;\n" % (ord_v, struct_line.strip().strip(","))) ord_v = ord_v + 1 - out_c.write("\t}\n") - out_c.write("\tabort();\n") - out_c.write("}\n") + write_c("\t}\n") + write_c("\tabort();\n") + write_c("}\n") ord_v = 0 - out_c.write("static jclass " + struct_name + "_class = NULL;\n") + write_c("static jclass " + struct_name + "_class = NULL;\n") for idx, struct_line in enumerate(field_lines): if idx > 0 and idx < len(field_lines) - 3: variant = struct_line.strip().strip(",") - out_c.write("static jfieldID " + struct_name + "_" + variant + " = NULL;\n") - out_c.write("JNIEXPORT void JNICALL Java_org_ldk_enums_" + struct_name.replace("_", "_1") + "_init (JNIEnv * env, jclass clz) {\n") - out_c.write("\t" + struct_name + "_class = (*env)->NewGlobalRef(env, clz);\n") - out_c.write("\tCHECK(" + struct_name + "_class != NULL);\n") + write_c("static jfieldID " + struct_name + "_" + variant + " = NULL;\n") + write_c("JNIEXPORT void JNICALL Java_org_ldk_enums_" + struct_name.replace("_", "_1") + "_init (JNIEnv * env, jclass clz) {\n") + write_c("\t" + struct_name + "_class = (*env)->NewGlobalRef(env, clz);\n") + write_c("\tCHECK(" + struct_name + "_class != NULL);\n") for idx, struct_line in enumerate(field_lines): if idx > 0 and idx < len(field_lines) - 3: variant = struct_line.strip().strip(",") - out_c.write("\t" + struct_name + "_" + variant + " = (*env)->GetStaticFieldID(env, " + struct_name + "_class, \"" + variant + "\", \"Lorg/ldk/enums/" + struct_name + ";\");\n") - out_c.write("\tCHECK(" + struct_name + "_" + variant + " != NULL);\n") - out_c.write("}\n") - out_c.write("static inline jclass " + struct_name + "_to_java(JNIEnv *env, " + struct_name + " val) {\n") - out_c.write("\tswitch (val) {\n") + write_c("\t" + struct_name + "_" + variant + " = (*env)->GetStaticFieldID(env, " + struct_name + "_class, \"" + variant + "\", \"Lorg/ldk/enums/" + struct_name + ";\");\n") + write_c("\tCHECK(" + struct_name + "_" + variant + " != NULL);\n") + write_c("}\n") + write_c("static inline jclass " + struct_name + "_to_java(JNIEnv *env, " + struct_name + " val) {\n") + write_c("\tswitch (val) {\n") for idx, struct_line in enumerate(field_lines): if idx > 0 and idx < len(field_lines) - 3: variant = struct_line.strip().strip(",") - out_c.write("\t\tcase " + variant + ":\n") - out_c.write("\t\t\treturn (*env)->GetStaticObjectField(env, " + struct_name + "_class, " + struct_name + "_" + variant + ");\n") + write_c("\t\tcase " + variant + ":\n") + write_c("\t\t\treturn (*env)->GetStaticObjectField(env, " + struct_name + "_class, " + struct_name + "_" + variant + ");\n") ord_v = ord_v + 1 - out_c.write("\t\tdefault: abort();\n") - out_c.write("\t}\n") - out_c.write("}\n\n") + write_c("\t\tdefault: abort();\n") + write_c("\t}\n") + write_c("}\n\n") def map_complex_enum(struct_name, union_enum_items): java_hu_type = struct_name.replace("LDK", "") @@ -932,9 +1078,8 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg out_java_enum.write("\t@Override @SuppressWarnings(\"deprecation\")\n") out_java_enum.write("\tprotected void finalize() throws Throwable {\n") out_java_enum.write("\t\tsuper.finalize();\n") - out_java_enum.write("\t\tbindings." + java_hu_type + "_free(ptr);\n") + out_java_enum.write("\t\tif (ptr != 0) { bindings." + java_hu_type + "_free(ptr); }\n") out_java_enum.write("\t}\n") - out_java_enum.write("\tlong conv_to_c() { assert false; return 0; /* Should only be called on subclasses */ }\n") out_java_enum.write("\tstatic " + java_hu_type + " constr_from_ptr(long ptr) {\n") out_java_enum.write("\t\tbindings." + struct_name + " raw_val = bindings." + struct_name + "_ref_from_ptr(ptr);\n") java_hu_subclasses = "" @@ -958,8 +1103,8 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg java_hu_subclasses = java_hu_subclasses + "\tpublic final static class " + var_name + " extends " + java_hu_type + " {\n" out_java_enum.write("\t\tif (raw_val.getClass() == bindings." + struct_name + "." + var_name + ".class) {\n") out_java_enum.write("\t\t\treturn new " + var_name + "(ptr, (bindings." + struct_name + "." + var_name + ")raw_val);\n") - out_c.write("static jclass " + struct_name + "_" + var_name + "_class = NULL;\n") - out_c.write("static jmethodID " + struct_name + "_" + var_name + "_meth = NULL;\n") + write_c("static jclass " + struct_name + "_" + var_name + "_class = NULL;\n") + write_c("static jmethodID " + struct_name + "_" + var_name + "_meth = NULL;\n") init_meth_jty_str = "" init_meth_params = "" init_meth_body = "" @@ -970,7 +1115,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg if idx != 0 and idx < len(enum_var_lines) - 2: field_ty = map_type(field.strip(' ;'), False, None, False, True) out_java.write("\t\t\tpublic " + field_ty.java_ty + " " + field_ty.arg_name + ";\n") - java_hu_subclasses = java_hu_subclasses + "\t\tpublic " + field_ty.java_hu_ty + " " + field_ty.arg_name + ";\n" + java_hu_subclasses = java_hu_subclasses + "\t\tpublic final " + field_ty.java_hu_ty + " " + field_ty.arg_name + ";\n" if field_ty.to_hu_conv is not None: hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.java_ty + " " + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n" hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n" @@ -989,31 +1134,30 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg out_java_enum.write("\t\t}\n") java_hu_subclasses = java_hu_subclasses + "\t\tprivate " + var_name + "(long ptr, bindings." + struct_name + "." + var_name + " obj) {\n\t\t\tsuper(null, ptr);\n" java_hu_subclasses = java_hu_subclasses + hu_conv_body - java_hu_subclasses = java_hu_subclasses + "\t\t}\n\t\t@Override long conv_to_c() { return 0; /*XXX*/ }\n" - java_hu_subclasses = java_hu_subclasses + "\t}\n" + java_hu_subclasses = java_hu_subclasses + "\t\t}\n\t}\n" init_meth_jty_strs[var_name] = init_meth_jty_str out_java_enum.write("\t\tassert false; return null; // Unreachable without extending the (internal) bindings interface\n\t}\n\n") out_java_enum.write(java_hu_subclasses) out_java.write("\tstatic { " + struct_name + ".init(); }\n") out_java.write("\tpublic static native " + struct_name + " " + struct_name + "_ref_from_ptr(long ptr);\n"); - out_c.write("JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024" + struct_name.replace("_", "_1") + "_init (JNIEnv * env, jclass _a) {\n") + write_c("JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024" + struct_name.replace("_", "_1") + "_init (JNIEnv * env, jclass _a) {\n") for idx, struct_line in enumerate(tag_field_lines): if idx != 0 and idx < len(tag_field_lines) - 3: var_name = struct_line.strip(' ,')[len(struct_name) + 1:] - out_c.write("\t" + struct_name + "_" + var_name + "_class =\n") - out_c.write("\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"Lorg/ldk/impl/bindings$" + struct_name + "$" + var_name + ";\"));\n") - out_c.write("\tCHECK(" + struct_name + "_" + var_name + "_class != NULL);\n") - out_c.write("\t" + struct_name + "_" + var_name + "_meth = (*env)->GetMethodID(env, " + struct_name + "_" + var_name + "_class, \"\", \"(" + init_meth_jty_strs[var_name] + ")V\");\n") - out_c.write("\tCHECK(" + struct_name + "_" + var_name + "_meth != NULL);\n") - out_c.write("}\n") - out_c.write("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1ref_1from_1ptr (JNIEnv * _env, jclass _c, jlong ptr) {\n") - out_c.write("\t" + struct_name + " *obj = (" + struct_name + "*)ptr;\n") - out_c.write("\tswitch(obj->tag) {\n") + write_c("\t" + struct_name + "_" + var_name + "_class =\n") + write_c("\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"Lorg/ldk/impl/bindings$" + struct_name + "$" + var_name + ";\"));\n") + write_c("\tCHECK(" + struct_name + "_" + var_name + "_class != NULL);\n") + write_c("\t" + struct_name + "_" + var_name + "_meth = (*env)->GetMethodID(env, " + struct_name + "_" + var_name + "_class, \"\", \"(" + init_meth_jty_strs[var_name] + ")V\");\n") + write_c("\tCHECK(" + struct_name + "_" + var_name + "_meth != NULL);\n") + write_c("}\n") + write_c("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1ref_1from_1ptr (JNIEnv * _env, jclass _c, jlong ptr) {\n") + write_c("\t" + struct_name + " *obj = (" + struct_name + "*)ptr;\n") + write_c("\tswitch(obj->tag) {\n") for idx, struct_line in enumerate(tag_field_lines): if idx != 0 and idx < len(tag_field_lines) - 3: var_name = struct_line.strip(' ,')[len(struct_name) + 1:] - out_c.write("\t\tcase " + struct_name + "_" + var_name + ": {\n") + write_c("\t\tcase " + struct_name + "_" + var_name + ": {\n") c_params_text = "" if "LDK" + var_name in union_enum_items: enum_var_lines = union_enum_items["LDK" + var_name] @@ -1021,55 +1165,81 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg if idx != 0 and idx < len(enum_var_lines) - 2: field_map = map_type(field.strip(' ;'), False, None, False, True) if field_map.ret_conv is not None: - out_c.write("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t")) - out_c.write("obj->" + camel_to_snake(var_name) + "." + field_map.arg_name) - out_c.write(field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n") + write_c("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t")) + write_c("obj->" + camel_to_snake(var_name) + "." + field_map.arg_name) + write_c(field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n") c_params_text = c_params_text + ", " + field_map.ret_conv_name else: c_params_text = c_params_text + ", obj->" + camel_to_snake(var_name) + "." + field_map.arg_name - out_c.write("\t\t\treturn (*_env)->NewObject(_env, " + struct_name + "_" + var_name + "_class, " + struct_name + "_" + var_name + "_meth" + c_params_text + ");\n") - out_c.write("\t\t}\n") - out_c.write("\t\tdefault: abort();\n") - out_c.write("\t}\n}\n") + write_c("\t\t\treturn (*_env)->NewObject(_env, " + struct_name + "_" + var_name + "_class, " + struct_name + "_" + var_name + "_meth" + c_params_text + ");\n") + write_c("\t\t}\n") + write_c("\t\tdefault: abort();\n") + write_c("\t}\n}\n") out_java_enum.write("}\n") def map_trait(struct_name, field_var_lines, trait_fn_lines): with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "w") as out_java_trait: - out_c.write("typedef struct " + struct_name + "_JCalls {\n") - out_c.write("\tatomic_size_t refcnt;\n") - out_c.write("\tJavaVM *vm;\n") - out_c.write("\tjweak o;\n") + write_c("typedef struct " + struct_name + "_JCalls {\n") + write_c("\tatomic_size_t refcnt;\n") + write_c("\tJavaVM *vm;\n") + write_c("\tjweak o;\n") + field_var_convs = [] for var_line in field_var_lines: if var_line.group(1) in trait_structs: - out_c.write("\t" + var_line.group(1) + "_JCalls* " + var_line.group(2) + ";\n") + write_c("\t" + var_line.group(1) + "_JCalls* " + var_line.group(2) + ";\n") + field_var_convs.append(None) + else: + field_var_convs.append(map_type(var_line.group(1) + " " + var_line.group(2), False, None, False, False)) for fn_line in trait_fn_lines: if fn_line.group(2) != "free" and fn_line.group(2) != "clone": - out_c.write("\tjmethodID " + fn_line.group(2) + "_meth;\n") - out_c.write("} " + struct_name + "_JCalls;\n") + write_c("\tjmethodID " + fn_line.group(2) + "_meth;\n") + write_c("} " + struct_name + "_JCalls;\n") out_java_trait.write(hu_struct_file_prefix) out_java_trait.write("public class " + struct_name.replace("LDK","") + " extends CommonBase {\n") - out_java_trait.write("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); }\n") - out_java_trait.write("\tpublic " + struct_name.replace("LDK", "") + "(bindings." + struct_name + " arg") # XXX: Should be priv ( but is currently used in tests - for var_line in field_var_lines: + out_java_trait.write("\tfinal bindings." + struct_name + " bindings_instance;\n") + out_java_trait.write("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }\n") + out_java_trait.write("\tprivate " + struct_name.replace("LDK", "") + "(bindings." + struct_name + " arg") + for idx, var_line in enumerate(field_var_lines): if var_line.group(1) in trait_structs: out_java_trait.write(", bindings." + var_line.group(1) + " " + var_line.group(2)) + else: + out_java_trait.write(", " + field_var_convs[idx].java_hu_ty + " " + var_line.group(2)) out_java_trait.write(") {\n") out_java_trait.write("\t\tsuper(bindings." + struct_name + "_new(arg") - for var_line in field_var_lines: + for idx, var_line in enumerate(field_var_lines): if var_line.group(1) in trait_structs: out_java_trait.write(", " + var_line.group(2)) + elif field_var_convs[idx].from_hu_conv is not None: + out_java_trait.write(", " + field_var_convs[idx].from_hu_conv[0]) + else: + out_java_trait.write(", " + var_line.group(2)) out_java_trait.write("));\n") out_java_trait.write("\t\tthis.ptrs_to.add(arg);\n") + for idx, var_line in enumerate(field_var_lines): + if var_line.group(1) in trait_structs: + out_java_trait.write("\t\tthis.ptrs_to.add(" + var_line.group(2) + ");\n") + elif field_var_convs[idx].from_hu_conv is not None and field_var_convs[idx].from_hu_conv[1] != "": + out_java_trait.write("\t\t" + field_var_convs[idx].from_hu_conv[1] + ";\n") + out_java_trait.write("\t\tthis.bindings_instance = arg;\n") out_java_trait.write("\t}\n") out_java_trait.write("\t@Override @SuppressWarnings(\"deprecation\")\n") out_java_trait.write("\tprotected void finalize() throws Throwable {\n") - out_java_trait.write("\t\tbindings." + struct_name.replace("LDK","") + "_free(ptr); super.finalize();\n") + out_java_trait.write("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); } super.finalize();\n") out_java_trait.write("\t}\n\n") - java_trait_constr = "\tpublic " + struct_name.replace("LDK", "") + "(" + struct_name.replace("LDK", "") + "Interface arg) {\n" - java_trait_constr = java_trait_constr + "\t\tthis(new bindings." + struct_name + "() {\n" - #out_java_trait.write("\tpublic static interface " + struct_name.replace("LDK", "") + "Interface {\n") + java_trait_constr = "\tprivate static class " + struct_name + "Holder { " + struct_name.replace("LDK", "") + " held; }\n" + java_trait_constr = java_trait_constr + "\tpublic static " + struct_name.replace("LDK", "") + " new_impl(" + struct_name.replace("LDK", "") + "Interface arg" + for idx, var_line in enumerate(field_var_lines): + if var_line.group(1) in trait_structs: + # Ideally we'd be able to take any instance of the interface, but our C code can only represent + # Java-implemented version, so we require users pass a Java implementation here :/ + java_trait_constr = java_trait_constr + ", " + var_line.group(1).replace("LDK", "") + "." + var_line.group(1).replace("LDK", "") + "Interface " + var_line.group(2) + "_impl" + else: + java_trait_constr = java_trait_constr + ", " + field_var_convs[idx].java_hu_ty + " " + var_line.group(2) + java_trait_constr = java_trait_constr + ") {\n\t\tfinal " + struct_name + "Holder impl_holder = new " + struct_name + "Holder();\n" + java_trait_constr = java_trait_constr + "\t\timpl_holder.held = new " + struct_name.replace("LDK", "") + "(new bindings." + struct_name + "() {\n" + out_java_trait.write("\tpublic static interface " + struct_name.replace("LDK", "") + "Interface {\n") out_java.write("\tpublic interface " + struct_name + " {\n") java_meths = [] for fn_line in trait_fn_lines: @@ -1079,13 +1249,13 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg out_java.write("\t\t " + ret_ty_info.java_ty + " " + fn_line.group(2) + "(") java_trait_constr = java_trait_constr + "\t\t\t@Override public " + ret_ty_info.java_ty + " " + fn_line.group(2) + "(" - #out_java_trait.write("\t\t" + ret_ty_info.java_hu_ty + " " + fn_line.group(2) + "(") + out_java_trait.write("\t\t" + ret_ty_info.java_hu_ty + " " + fn_line.group(2) + "(") is_const = fn_line.group(3) is not None - out_c.write(fn_line.group(1) + fn_line.group(2) + "_jcall(") + write_c(fn_line.group(1) + fn_line.group(2) + "_jcall(") if is_const: - out_c.write("const void* this_arg") + write_c("const void* this_arg") else: - out_c.write("void* this_arg") + write_c("void* this_arg") arg_names = [] for idx, arg in enumerate(fn_line.group(4).split(',')): @@ -1094,12 +1264,12 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg if idx >= 2: out_java.write(", ") java_trait_constr = java_trait_constr + ", " - #out_java_trait.write(", ") - out_c.write(", ") + out_java_trait.write(", ") + write_c(", ") arg_conv_info = map_type(arg, True, None, False, False) - out_c.write(arg.strip()) + write_c(arg.strip()) out_java.write(arg_conv_info.java_ty + " " + arg_conv_info.arg_name) - #out_java_trait.write(arg_conv_info.java_ty + " " + arg_conv_info.arg_name) + out_java_trait.write(arg_conv_info.java_hu_ty + " " + arg_conv_info.arg_name) java_trait_constr = java_trait_constr + arg_conv_info.java_ty + " " + arg_conv_info.arg_name arg_names.append(arg_conv_info) java_meth_descr = java_meth_descr + arg_conv_info.java_fn_ty_arg @@ -1107,129 +1277,163 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg java_meths.append(java_meth_descr) out_java.write(");\n") - #out_java_trait.write(");\n") + out_java_trait.write(");\n") java_trait_constr = java_trait_constr + ") {\n" - out_c.write(") {\n") - out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") - out_c.write("\tJNIEnv *_env;\n") - out_c.write("\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&_env, JNI_VERSION_1_8) == JNI_OK);\n") + write_c(") {\n") + write_c("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") + write_c("\tJNIEnv *_env;\n") + write_c("\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&_env, JNI_VERSION_1_8) == JNI_OK);\n") for arg_info in arg_names: if arg_info.ret_conv is not None: - out_c.write("\t" + arg_info.ret_conv[0].replace('\n', '\n\t')); - out_c.write(arg_info.arg_name) - out_c.write(arg_info.ret_conv[1].replace('\n', '\n\t') + "\n") + write_c("\t" + arg_info.ret_conv[0].replace('\n', '\n\t')); + write_c(arg_info.arg_name) + write_c(arg_info.ret_conv[1].replace('\n', '\n\t') + "\n") + if arg_info.to_hu_conv is not None: + java_trait_constr = java_trait_constr + "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n" - out_c.write("\tjobject obj = (*_env)->NewLocalRef(_env, j_calls->o);\n\tCHECK(obj != NULL);\n") + write_c("\tjobject obj = (*_env)->NewLocalRef(_env, j_calls->o);\n\tCHECK(obj != NULL);\n") if ret_ty_info.c_ty.endswith("Array"): - out_c.write("\t" + ret_ty_info.c_ty + " ret = (*_env)->CallObjectMethod(_env, obj, j_calls->" + fn_line.group(2) + "_meth") + write_c("\t" + ret_ty_info.c_ty + " arg = (*_env)->CallObjectMethod(_env, obj, j_calls->" + fn_line.group(2) + "_meth") elif not ret_ty_info.passed_as_ptr: - out_c.write("\treturn (*_env)->Call" + ret_ty_info.java_ty.title() + "Method(_env, obj, j_calls->" + fn_line.group(2) + "_meth") + write_c("\treturn (*_env)->Call" + ret_ty_info.java_ty.title() + "Method(_env, obj, j_calls->" + fn_line.group(2) + "_meth") else: - out_c.write("\t" + fn_line.group(1).strip() + "* ret = (" + fn_line.group(1).strip() + "*)(*_env)->CallLongMethod(_env, obj, j_calls->" + fn_line.group(2) + "_meth"); + write_c("\t" + fn_line.group(1).strip() + "* ret = (" + fn_line.group(1).strip() + "*)(*_env)->CallLongMethod(_env, obj, j_calls->" + fn_line.group(2) + "_meth"); if ret_ty_info.java_ty != "void": - java_trait_constr = java_trait_constr + "\t\t\t\treturn arg." + fn_line.group(2) + "(" + java_trait_constr = java_trait_constr + "\t\t\t\t" + ret_ty_info.java_hu_ty + " ret = arg." + fn_line.group(2) + "(" else: java_trait_constr = java_trait_constr + "\t\t\t\targ." + fn_line.group(2) + "(" - for arg_info in arg_names: + for idx, arg_info in enumerate(arg_names): if arg_info.ret_conv is not None: - out_c.write(", " + arg_info.ret_conv_name) + write_c(", " + arg_info.ret_conv_name) else: - out_c.write(", " + arg_info.arg_name) - out_c.write(");\n"); + write_c(", " + arg_info.arg_name) + if idx != 0: + java_trait_constr = java_trait_constr + ", " + if arg_info.to_hu_conv_name is not None: + java_trait_constr = java_trait_constr + arg_info.to_hu_conv_name + else: + java_trait_constr = java_trait_constr + arg_info.arg_name + write_c(");\n"); if ret_ty_info.arg_conv is not None: - out_c.write("\t" + ret_ty_info.arg_conv.replace("\n", "\n\t").replace("arg", "ret") + "\n\treturn " + ret_ty_info.arg_conv_name.replace("arg", "ret") + ";\n") - - if ret_ty_info.passed_as_ptr: - out_c.write("\t" + fn_line.group(1).strip() + " res = *ret;\n") - out_c.write("\tFREE(ret);\n") - out_c.write("\treturn res;\n") - out_c.write("}\n") - java_trait_constr = java_trait_constr + ");\n\t\t\t}\n" + write_c("\t" + ret_ty_info.arg_conv.replace("\n", "\n\t") + "\n\treturn " + ret_ty_info.arg_conv_name + ";\n") + + write_c("}\n") + java_trait_constr = java_trait_constr + ");\n" + if ret_ty_info.java_ty != "void": + if ret_ty_info.from_hu_conv is not None: + java_trait_constr = java_trait_constr + "\t\t\t\t" + ret_ty_info.java_ty + " result = " + ret_ty_info.from_hu_conv[0] + ";\n" + if ret_ty_info.from_hu_conv[1] != "": + java_trait_constr = java_trait_constr + "\t\t\t\t" + ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n" + if is_common_base_ext(ret_ty_info.rust_obj): + java_trait_constr = java_trait_constr + "\t\t\t\tret.ptr = 0;\n" + java_trait_constr = java_trait_constr + "\t\t\t\treturn result;\n" + else: + java_trait_constr = java_trait_constr + "\t\t\t\treturn ret;\n" + java_trait_constr = java_trait_constr + "\t\t\t}\n" elif fn_line.group(2) == "free": - out_c.write("static void " + struct_name + "_JCalls_free(void* this_arg) {\n") - out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") - out_c.write("\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n") - out_c.write("\t\tJNIEnv *env;\n") - out_c.write("\t\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n") - out_c.write("\t\t(*env)->DeleteWeakGlobalRef(env, j_calls->o);\n") - out_c.write("\t\tFREE(j_calls);\n") - out_c.write("\t}\n}\n") - #out_java_trait.write("\t}\n") - #out_java_trait.write(java_trait_constr + "\t\t});\n\t}\n") + write_c("static void " + struct_name + "_JCalls_free(void* this_arg) {\n") + write_c("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") + write_c("\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n") + write_c("\t\tJNIEnv *env;\n") + write_c("\t\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n") + write_c("\t\t(*env)->DeleteWeakGlobalRef(env, j_calls->o);\n") + write_c("\t\tFREE(j_calls);\n") + write_c("\t}\n}\n") + java_trait_constr = java_trait_constr + "\t\t}" + for var_line in field_var_lines: + if var_line.group(1) in trait_structs: + java_trait_constr = java_trait_constr + ", " + var_line.group(2) + ".new_impl(" + var_line.group(2) + "_impl).bindings_instance" + else: + java_trait_constr = java_trait_constr + ", " + var_line.group(2) + out_java_trait.write("\t}\n") + out_java_trait.write(java_trait_constr + ");\n\t\treturn impl_holder.held;\n\t}\n") # Write out a clone function whether we need one or not, as we use them in moving to rust - out_c.write("static void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n") - out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") - out_c.write("\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n") + write_c("static void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n") + write_c("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") + write_c("\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n") for var_line in field_var_lines: if var_line.group(1) in trait_structs: - out_c.write("\tatomic_fetch_add_explicit(&j_calls->" + var_line.group(2) + "->refcnt, 1, memory_order_release);\n") - out_c.write("\treturn (void*) this_arg;\n") - out_c.write("}\n") + write_c("\tatomic_fetch_add_explicit(&j_calls->" + var_line.group(2) + "->refcnt, 1, memory_order_release);\n") + write_c("\treturn (void*) this_arg;\n") + write_c("}\n") out_java.write("\t}\n") out_java.write("\tpublic static native long " + struct_name + "_new(" + struct_name + " impl") - out_c.write("static inline " + struct_name + " " + struct_name + "_init (JNIEnv * env, jclass _a, jobject o") - for var_line in field_var_lines: + write_c("static inline " + struct_name + " " + struct_name + "_init (JNIEnv * env, jclass _a, jobject o") + for idx, var_line in enumerate(field_var_lines): if var_line.group(1) in trait_structs: out_java.write(", " + var_line.group(1) + " " + var_line.group(2)) - out_c.write(", jobject " + var_line.group(2)) + write_c(", jobject " + var_line.group(2)) + else: + out_java.write(", " + field_var_convs[idx].java_ty + " " + var_line.group(2)) + write_c(", " + field_var_convs[idx].c_ty + " " + var_line.group(2)) out_java.write(");\n") - out_c.write(") {\n") - - out_c.write("\tjclass c = (*env)->GetObjectClass(env, o);\n") - out_c.write("\tCHECK(c != NULL);\n") - out_c.write("\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n") - out_c.write("\tatomic_init(&calls->refcnt, 1);\n") - out_c.write("\tDO_ASSERT((*env)->GetJavaVM(env, &calls->vm) == 0);\n") - out_c.write("\tcalls->o = (*env)->NewWeakGlobalRef(env, o);\n") + write_c(") {\n") + + write_c("\tjclass c = (*env)->GetObjectClass(env, o);\n") + write_c("\tCHECK(c != NULL);\n") + write_c("\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n") + write_c("\tatomic_init(&calls->refcnt, 1);\n") + write_c("\tDO_ASSERT((*env)->GetJavaVM(env, &calls->vm) == 0);\n") + write_c("\tcalls->o = (*env)->NewWeakGlobalRef(env, o);\n") for (fn_line, java_meth_descr) in zip(trait_fn_lines, java_meths): if fn_line.group(2) != "free" and fn_line.group(2) != "clone": - out_c.write("\tcalls->" + fn_line.group(2) + "_meth = (*env)->GetMethodID(env, c, \"" + fn_line.group(2) + "\", \"" + java_meth_descr + "\");\n") - out_c.write("\tCHECK(calls->" + fn_line.group(2) + "_meth != NULL);\n") - out_c.write("\n\t" + struct_name + " ret = {\n") - out_c.write("\t\t.this_arg = (void*) calls,\n") + write_c("\tcalls->" + fn_line.group(2) + "_meth = (*env)->GetMethodID(env, c, \"" + fn_line.group(2) + "\", \"" + java_meth_descr + "\");\n") + write_c("\tCHECK(calls->" + fn_line.group(2) + "_meth != NULL);\n") + for idx, var_line in enumerate(field_var_lines): + if field_var_convs[idx] is not None and field_var_convs[idx].arg_conv is not None: + write_c("\n\t" + field_var_convs[idx].arg_conv.replace("\n", "\n\t") +"\n") + write_c("\n\t" + struct_name + " ret = {\n") + write_c("\t\t.this_arg = (void*) calls,\n") for fn_line in trait_fn_lines: if fn_line.group(2) != "free" and fn_line.group(2) != "clone": - out_c.write("\t\t." + fn_line.group(2) + " = " + fn_line.group(2) + "_jcall,\n") + write_c("\t\t." + fn_line.group(2) + " = " + fn_line.group(2) + "_jcall,\n") elif fn_line.group(2) == "free": - out_c.write("\t\t.free = " + struct_name + "_JCalls_free,\n") + write_c("\t\t.free = " + struct_name + "_JCalls_free,\n") else: clone_fns.add(struct_name + "_clone") - out_c.write("\t\t.clone = " + struct_name + "_JCalls_clone,\n") - for var_line in field_var_lines: + write_c("\t\t.clone = " + struct_name + "_JCalls_clone,\n") + for idx, var_line in enumerate(field_var_lines): if var_line.group(1) in trait_structs: - out_c.write("\t\t." + var_line.group(2) + " = " + var_line.group(1) + "_init(env, _a, " + var_line.group(2) + "),\n") - out_c.write("\t};\n") + write_c("\t\t." + var_line.group(2) + " = " + var_line.group(1) + "_init(env, _a, " + var_line.group(2) + "),\n") + elif field_var_convs[idx].arg_conv_name is not None: + write_c("\t\t." + var_line.group(2) + " = " + field_var_convs[idx].arg_conv_name + ",\n") + write_c("\t\t.set_" + var_line.group(2) + " = NULL,\n") + else: + write_c("\t\t." + var_line.group(2) + " = " + var_line.group(2) + ",\n") + write_c("\t\t.set_" + var_line.group(2) + " = NULL,\n") + write_c("\t};\n") for var_line in field_var_lines: if var_line.group(1) in trait_structs: - out_c.write("\tcalls->" + var_line.group(2) + " = ret." + var_line.group(2) + ".this_arg;\n") - out_c.write("\treturn ret;\n") - out_c.write("}\n") + write_c("\tcalls->" + var_line.group(2) + " = ret." + var_line.group(2) + ".this_arg;\n") + write_c("\treturn ret;\n") + write_c("}\n") - out_c.write("JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new (JNIEnv * env, jclass _a, jobject o") - for var_line in field_var_lines: + write_c("JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new (JNIEnv * env, jclass _a, jobject o") + for idx, var_line in enumerate(field_var_lines): if var_line.group(1) in trait_structs: - out_c.write(", jobject " + var_line.group(2)) - out_c.write(") {\n") - out_c.write("\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") - out_c.write("\t*res_ptr = " + struct_name + "_init(env, _a, o") + write_c(", jobject " + var_line.group(2)) + else: + write_c(", " + field_var_convs[idx].c_ty + " " + var_line.group(2)) + write_c(") {\n") + write_c("\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") + write_c("\t*res_ptr = " + struct_name + "_init(env, _a, o") for var_line in field_var_lines: - if var_line.group(1) in trait_structs: - out_c.write(", " + var_line.group(2)) - out_c.write(");\n") - out_c.write("\treturn (long)res_ptr;\n") - out_c.write("}\n") + write_c(", " + var_line.group(2)) + write_c(");\n") + write_c("\treturn (long)res_ptr;\n") + write_c("}\n") out_java.write("\tpublic static native " + struct_name + " " + struct_name + "_get_obj_from_jcalls(long val);\n") - out_c.write("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1get_1obj_1from_1jcalls (JNIEnv * env, jclass _a, jlong val) {\n") - out_c.write("\tjobject ret = (*env)->NewLocalRef(env, ((" + struct_name + "_JCalls*)val)->o);\n") - out_c.write("\tCHECK(ret != NULL);\n") - out_c.write("\treturn ret;\n") - out_c.write("}\n") + write_c("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1get_1obj_1from_1jcalls (JNIEnv * env, jclass _a, jlong val) {\n") + write_c("\tjobject ret = (*env)->NewLocalRef(env, ((" + struct_name + "_JCalls*)val)->o);\n") + write_c("\tCHECK(ret != NULL);\n") + write_c("\treturn ret;\n") + write_c("}\n") for fn_line in trait_fn_lines: # For now, just disable enabling the _call_log - we don't know how to inverse-map String @@ -1237,119 +1441,16 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.arg if fn_line.group(2) != "free" and fn_line.group(2) != "clone" and fn_line.group(2) != "eq" and not is_log: dummy_line = fn_line.group(1) + struct_name.replace("LDK", "") + "_" + fn_line.group(2) + " " + struct_name + "* this_arg" + fn_line.group(4) + "\n" map_fn(dummy_line, re.compile("([A-Za-z_0-9]*) *([A-Za-z_0-9]*) *(.*)").match(dummy_line), None, "(this_arg_conv->" + fn_line.group(2) + ")(this_arg_conv->this_arg") + for idx, var_line in enumerate(field_var_lines): + if var_line.group(1) not in trait_structs: + write_c(var_line.group(1) + " " + struct_name + "_set_get_" + var_line.group(2) + "(" + struct_name + "* this_arg) {\n") + write_c("\tif (this_arg->set_" + var_line.group(2) + " != NULL)\n") + write_c("\t\tthis_arg->set_" + var_line.group(2) + "(this_arg);\n") + write_c("\treturn this_arg->" + var_line.group(2) + ";\n") + write_c("}\n") + dummy_line = var_line.group(1) + " " + struct_name.replace("LDK", "") + "_get_" + var_line.group(2) + " " + struct_name + "* this_arg" + fn_line.group(4) + "\n" + map_fn(dummy_line, re.compile("([A-Za-z_0-9]*) *([A-Za-z_0-9]*) *(.*)").match(dummy_line), None, struct_name + "_set_get_" + var_line.group(2) + "(this_arg_conv") - out_c.write("""#include \"org_ldk_impl_bindings.h\" -#include -#include -#include -#include -""") - - if sys.argv[4] == "false": - out_c.write("#define MALLOC(a, _) malloc(a)\n") - out_c.write("#define FREE(p) if ((p) > 1024) { free(p); }\n") - out_c.write("#define DO_ASSERT(a) (void)(a)\n") - out_c.write("#define CHECK(a)\n") - else: - out_c.write("""#include -// Always run a, then assert it is true: -#define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0) -// Assert a is true or do nothing -#define CHECK(a) DO_ASSERT(a) - -// Running a leak check across all the allocations and frees of the JDK is a mess, -// so instead we implement our own naive leak checker here, relying on the -wrap -// linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated -// and free'd in Rust or C across the generated bindings shared library. -#include -#include -#include -static mtx_t allocation_mtx; - -void __attribute__((constructor)) init_mtx() { - DO_ASSERT(mtx_init(&allocation_mtx, mtx_plain) == thrd_success); -} - -#define BT_MAX 128 -typedef struct allocation { - struct allocation* next; - void* ptr; - const char* struct_name; - void* bt[BT_MAX]; - int bt_len; -} allocation; -static allocation* allocation_ll = NULL; - -void* __real_malloc(size_t len); -void* __real_calloc(size_t nmemb, size_t len); -static void new_allocation(void* res, const char* struct_name) { - allocation* new_alloc = __real_malloc(sizeof(allocation)); - new_alloc->ptr = res; - new_alloc->struct_name = struct_name; - new_alloc->bt_len = backtrace(new_alloc->bt, BT_MAX); - DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success); - new_alloc->next = allocation_ll; - allocation_ll = new_alloc; - DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success); -} -static void* MALLOC(size_t len, const char* struct_name) { - void* res = __real_malloc(len); - new_allocation(res, struct_name); - return res; -} -void __real_free(void* ptr); -static void alloc_freed(void* ptr) { - allocation* p = NULL; - DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success); - allocation* it = allocation_ll; - while (it->ptr != ptr) { p = it; it = it->next; } - if (p) { p->next = it->next; } else { allocation_ll = it->next; } - DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success); - DO_ASSERT(it->ptr == ptr); - __real_free(it); -} -static void FREE(void* ptr) { - if ((long)ptr < 1024) return; // Rust loves to create pointers to the NULL page for dummys - alloc_freed(ptr); - __real_free(ptr); -} - -void* __wrap_malloc(size_t len) { - void* res = __real_malloc(len); - new_allocation(res, "malloc call"); - return res; -} -void* __wrap_calloc(size_t nmemb, size_t len) { - void* res = __real_calloc(nmemb, len); - new_allocation(res, "calloc call"); - return res; -} -void __wrap_free(void* ptr) { - alloc_freed(ptr); - __real_free(ptr); -} - -void* __real_realloc(void* ptr, size_t newlen); -void* __wrap_realloc(void* ptr, size_t len) { - alloc_freed(ptr); - void* res = __real_realloc(ptr, len); - new_allocation(res, "realloc call"); - return res; -} -void __wrap_reallocarray(void* ptr, size_t new_sz) { - // Rust doesn't seem to use reallocarray currently - assert(false); -} - -void __attribute__((destructor)) check_leaks() { - for (allocation* a = allocation_ll; a != NULL; a = a->next) { - fprintf(stderr, "%s %p remains:\\n", a->struct_name, a->ptr); - backtrace_symbols_fd(a->bt, a->bt_len, STDERR_FILENO); - fprintf(stderr, "\\n\\n"); - } - DO_ASSERT(allocation_ll == NULL); -} -""") out_java.write("""package org.ldk.impl; import org.ldk.enums.*; @@ -1365,8 +1466,10 @@ public class bindings { static { System.loadLibrary(\"lightningjni\"); init(java.lang.Enum.class, VecOrSliceDef.class); + init_class_cache(); } static native void init(java.lang.Class c, java.lang.Class slicedef); + static native void init_class_cache(); public static native boolean deref_bool(long ptr); public static native long deref_long(long ptr); @@ -1375,11 +1478,13 @@ public class bindings { public static native byte[] get_u8_slice_bytes(long slice_ptr); public static native long bytes_to_u8_vec(byte[] bytes); public static native long new_txpointer_copy_data(byte[] txdata); + public static native void txpointer_free(long ptr); + public static native byte[] txpointer_get_buffer(long ptr); public static native long vec_slice_len(long vec); public static native long new_empty_slice_vec(); """) - out_c.write(""" + write_c(""" static jmethodID ordinal_meth = NULL; static jmethodID slicedef_meth = NULL; static jclass slicedef_cls = NULL; @@ -1419,16 +1524,29 @@ JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_bytes_1to_1u8_1vec (JNIEnv * _ (*_env)->GetByteArrayRegion (_env, bytes, 0, vec->datalen, vec->data); return (long)vec; } +JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_txpointer_1get_1buffer (JNIEnv * env, jclass _b, jlong ptr) { + LDKTransaction *txdata = (LDKTransaction*)ptr; + LDKu8slice slice; + slice.data = txdata->data; + slice.datalen = txdata->datalen; + return Java_org_ldk_impl_bindings_get_1u8_1slice_1bytes(env, _b, (long)&slice); +} JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_new_1txpointer_1copy_1data (JNIEnv * env, jclass _b, jbyteArray bytes) { LDKTransaction *txdata = (LDKTransaction*)MALLOC(sizeof(LDKTransaction), "LDKTransaction"); txdata->datalen = (*env)->GetArrayLength(env, bytes); txdata->data = (uint8_t*)MALLOC(txdata->datalen, "Tx Data Bytes"); - txdata->data_is_owned = true; + txdata->data_is_owned = false; (*env)->GetByteArrayRegion (env, bytes, 0, txdata->datalen, txdata->data); return (long)txdata; } +JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_txpointer_1free (JNIEnv * env, jclass _b, jlong ptr) { + LDKTransaction *tx = (LDKTransaction*)ptr; + tx->data_is_owned = true; + Transaction_free(*tx); + FREE((void*)ptr); +} JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_vec_1slice_1len (JNIEnv * env, jclass _a, jlong ptr) { - // Check offsets of a few Vec types are all consistent as we're meant to be generic across types + // Check offsets of a few Vec types are all consistent as we're meant to be generic across types _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_SignatureZ, datalen), "Vec<*> needs to be mapped identically"); _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_MessageSendEventZ, datalen), "Vec<*> needs to be mapped identically"); _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_EventZ, datalen), "Vec<*> needs to be mapped identically"); @@ -1437,7 +1555,7 @@ JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_vec_1slice_1len (JNIEnv * env return (long)vec->datalen; } JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_new_1empty_1slice_1vec (JNIEnv * _env, jclass _b) { - // Check sizes of a few Vec types are all consistent as we're meant to be generic across types + // Check sizes of a few Vec types are all consistent as we're meant to be generic across types _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_SignatureZ), "Vec<*> needs to be mapped identically"); _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_MessageSendEventZ), "Vec<*> needs to be mapped identically"); _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_EventZ), "Vec<*> needs to be mapped identically"); @@ -1459,7 +1577,7 @@ _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), out_java_struct.write("""package org.ldk.structs; import java.util.LinkedList; class CommonBase { - final long ptr; + long ptr; LinkedList ptrs_to = new LinkedList(); protected CommonBase(long ptr) { this.ptr = ptr; } public long _test_only_get_ptr() { return this.ptr; } @@ -1480,6 +1598,7 @@ class CommonBase { assert(line_indicates_trait_regex.match(" void *(*clone)(const void *this_arg);")) line_field_var_regex = re.compile("^ ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$") assert(line_field_var_regex.match(" LDKMessageSendEventsProvider MessageSendEventsProvider;")) + assert(line_field_var_regex.match(" LDKChannelPublicKeys pubkeys;")) struct_name_regex = re.compile("^typedef (struct|enum|union) (MUST_USE_STRUCT )?(LDK[A-Za-z_0-9]*) {$") assert(struct_name_regex.match("typedef struct LDKCVecTempl_u8 {")) assert(struct_name_regex.match("typedef enum LDKNetwork {")) @@ -1568,7 +1687,7 @@ class CommonBase { out_java_struct.write("\t@Override @SuppressWarnings(\"deprecation\")\n") out_java_struct.write("\tprotected void finalize() throws Throwable {\n") out_java_struct.write("\t\tsuper.finalize();\n") - out_java_struct.write("\t\tbindings." + struct_name.replace("LDK","") + "_free(ptr);\n") + out_java_struct.write("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); }\n") out_java_struct.write("\t}\n\n") elif result_contents is not None: result_templ_structs.add(struct_name) @@ -1582,7 +1701,7 @@ class CommonBase { result_ptr_struct_items[struct_name] = (res_ty, err_ty) elif is_tuple: out_java.write("\tpublic static native long " + struct_name + "_new(") - out_c.write("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new(JNIEnv *_env, jclass _b") + write_c("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new(JNIEnv *_env, jclass _b") ty_list = [] for idx, line in enumerate(field_lines): if idx != 0 and idx < len(field_lines) - 2: @@ -1591,70 +1710,70 @@ class CommonBase { out_java.write(", ") e = chr(ord('a') + idx - 1) out_java.write(ty_info.java_ty + " " + e) - out_c.write(", " + ty_info.c_ty + " " + e) + write_c(", " + ty_info.c_ty + " " + e) ty_list.append(ty_info) tuple_types[struct_name] = (ty_list, struct_name) out_java.write(");\n") - out_c.write(") {\n") - out_c.write("\t" + struct_name + "* ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") + write_c(") {\n") + write_c("\t" + struct_name + "* ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") for idx, line in enumerate(field_lines): if idx != 0 and idx < len(field_lines) - 2: ty_info = map_type(line.strip(';'), False, None, False, False) e = chr(ord('a') + idx - 1) if ty_info.arg_conv is not None: - out_c.write("\t" + ty_info.arg_conv.replace("\n", "\n\t")) - out_c.write("\n\tret->" + e + " = " + ty_info.arg_conv_name + ";\n") + write_c("\t" + ty_info.arg_conv.replace("\n", "\n\t")) + write_c("\n\tret->" + e + " = " + ty_info.arg_conv_name + ";\n") else: - out_c.write("\tret->" + e + " = " + e + ";\n") + write_c("\tret->" + e + " = " + e + ";\n") if ty_info.arg_conv_cleanup is not None: - out_c.write("\t//TODO: Really need to call " + ty_info.arg_conv_cleanup + " here\n") - out_c.write("\treturn (long)ret;\n") - out_c.write("}\n") + write_c("\t//TODO: Really need to call " + ty_info.arg_conv_cleanup + " here\n") + write_c("\treturn (long)ret;\n") + write_c("}\n") elif vec_ty is not None: if vec_ty in opaque_structs: out_java.write("\tpublic static native long[] " + struct_name + "_arr_info(long vec_ptr);\n") - out_c.write("JNIEXPORT jlongArray JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1arr_1info(JNIEnv *env, jclass _b, jlong ptr) {\n") + write_c("JNIEXPORT jlongArray JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1arr_1info(JNIEnv *env, jclass _b, jlong ptr) {\n") else: out_java.write("\tpublic static native VecOrSliceDef " + struct_name + "_arr_info(long vec_ptr);\n") - out_c.write("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1arr_1info(JNIEnv *env, jclass _b, jlong ptr) {\n") - out_c.write("\t" + struct_name + " *vec = (" + struct_name + "*)ptr;\n") + write_c("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1arr_1info(JNIEnv *env, jclass _b, jlong ptr) {\n") + write_c("\t" + struct_name + " *vec = (" + struct_name + "*)ptr;\n") if vec_ty in opaque_structs: - out_c.write("\tjlongArray ret = (*env)->NewLongArray(env, vec->datalen);\n") - out_c.write("\tjlong *ret_elems = (*env)->GetPrimitiveArrayCritical(env, ret, NULL);\n") - out_c.write("\tfor (size_t i = 0; i < vec->datalen; i++) {\n") - out_c.write("\t\tCHECK((((long)vec->data[i].inner) & 1) == 0);\n") - out_c.write("\t\tret_elems[i] = (long)vec->data[i].inner | (vec->data[i].is_owned ? 1 : 0);\n") - out_c.write("\t}\n") - out_c.write("\t(*env)->ReleasePrimitiveArrayCritical(env, ret, ret_elems, 0);\n") - out_c.write("\treturn ret;\n") + write_c("\tjlongArray ret = (*env)->NewLongArray(env, vec->datalen);\n") + write_c("\tjlong *ret_elems = (*env)->GetPrimitiveArrayCritical(env, ret, NULL);\n") + write_c("\tfor (size_t i = 0; i < vec->datalen; i++) {\n") + write_c("\t\tCHECK((((long)vec->data[i].inner) & 1) == 0);\n") + write_c("\t\tret_elems[i] = (long)vec->data[i].inner | (vec->data[i].is_owned ? 1 : 0);\n") + write_c("\t}\n") + write_c("\t(*env)->ReleasePrimitiveArrayCritical(env, ret, ret_elems, 0);\n") + write_c("\treturn ret;\n") else: - out_c.write("\treturn (*env)->NewObject(env, slicedef_cls, slicedef_meth, (long)vec->data, (long)vec->datalen, sizeof(" + vec_ty + "));\n") - out_c.write("}\n") + write_c("\treturn (*env)->NewObject(env, slicedef_cls, slicedef_meth, (long)vec->data, (long)vec->datalen, sizeof(" + vec_ty + "));\n") + write_c("}\n") ty_info = map_type(vec_ty + " arr_elem", False, None, False, False) if len(ty_info.java_fn_ty_arg) == 1: # ie we're a primitive of some form out_java.write("\tpublic static native long " + struct_name + "_new(" + ty_info.java_ty + "[] elems);\n") - out_c.write("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new(JNIEnv *env, jclass _b, j" + ty_info.java_ty + "Array elems){\n") - out_c.write("\t" + struct_name + " *ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") - out_c.write("\tret->datalen = (*env)->GetArrayLength(env, elems);\n") - out_c.write("\tif (ret->datalen == 0) {\n") - out_c.write("\t\tret->data = NULL;\n") - out_c.write("\t} else {\n") - out_c.write("\t\tret->data = MALLOC(sizeof(" + vec_ty + ") * ret->datalen, \"" + struct_name + " Data\");\n") - out_c.write("\t\t" + ty_info.c_ty + " *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);\n") - out_c.write("\t\tfor (size_t i = 0; i < ret->datalen; i++) {\n") + write_c("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new(JNIEnv *env, jclass _b, j" + ty_info.java_ty + "Array elems){\n") + write_c("\t" + struct_name + " *ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") + write_c("\tret->datalen = (*env)->GetArrayLength(env, elems);\n") + write_c("\tif (ret->datalen == 0) {\n") + write_c("\t\tret->data = NULL;\n") + write_c("\t} else {\n") + write_c("\t\tret->data = MALLOC(sizeof(" + vec_ty + ") * ret->datalen, \"" + struct_name + " Data\");\n") + write_c("\t\t" + ty_info.c_ty + " *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);\n") + write_c("\t\tfor (size_t i = 0; i < ret->datalen; i++) {\n") if ty_info.arg_conv is not None: - out_c.write("\t\t\t" + ty_info.c_ty + " arr_elem = java_elems[i];\n") - out_c.write("\t\t\t" + ty_info.arg_conv.replace("\n", "\n\t\t\t") + "\n") - out_c.write("\t\t\tret->data[i] = " + ty_info.arg_conv_name + ";\n") + write_c("\t\t\t" + ty_info.c_ty + " arr_elem = java_elems[i];\n") + write_c("\t\t\t" + ty_info.arg_conv.replace("\n", "\n\t\t\t") + "\n") + write_c("\t\t\tret->data[i] = " + ty_info.arg_conv_name + ";\n") assert ty_info.arg_conv_cleanup is None else: - out_c.write("\t\t\tret->data[i] = java_elems[i];\n") - out_c.write("\t\t}\n") - out_c.write("\t\t(*env)->ReleasePrimitiveArrayCritical(env, elems, java_elems, 0);\n") - out_c.write("\t}\n") - out_c.write("\treturn (long)ret;\n") - out_c.write("}\n") + write_c("\t\t\tret->data[i] = java_elems[i];\n") + write_c("\t\t}\n") + write_c("\t\t(*env)->ReleasePrimitiveArrayCritical(env, elems, java_elems, 0);\n") + write_c("\t}\n") + write_c("\treturn (long)ret;\n") + write_c("}\n") elif is_union_enum: assert(struct_name.endswith("_Tag")) struct_name = struct_name[:-4] @@ -1674,15 +1793,9 @@ class CommonBase { out_java_struct.write(hu_struct_file_prefix) out_java_struct.write("public class TxOut extends CommonBase{\n") out_java_struct.write("\tTxOut(java.lang.Object _dummy, long ptr) { super(ptr); }\n") + out_java_struct.write("\tlong to_c_ptr() { return 0; }\n") # TODO: TxOut body out_java_struct.write("}") - elif struct_name == "LDKTransaction": - with open(sys.argv[3] + "/structs/Transaction.java", "w") as out_java_struct: - out_java_struct.write(hu_struct_file_prefix) - out_java_struct.write("public class Transaction extends CommonBase{\n") - out_java_struct.write("\tTransaction(java.lang.Object _dummy, long ptr) { super(ptr); }\n") - # TODO: Transaction body - out_java_struct.write("}") else: pass # Everything remaining is a byte[] or some form cur_block_obj = None @@ -1712,7 +1825,15 @@ class CommonBase { for idx, ty_info in enumerate(tuple_types[alias_match.group(1)][0]): e = chr(ord('a') + idx) out_java.write("\tpublic static native " + ty_info.java_ty + " " + alias_match.group(2) + "_get_" + e + "(long ptr);\n") - # XXX: Write C method! + write_c("JNIEXPORT " + ty_info.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1get_1" + e + "(JNIEnv *_env, jclass _b, jlong ptr) {\n") + write_c("\t" + alias_match.group(1) + " *tuple = (" + alias_match.group(1) + "*)ptr;\n") + conv_info = map_type_with_info(ty_info, False, None, False, True) + if conv_info.ret_conv is not None: + write_c("\t" + conv_info.ret_conv[0].replace("\n", "\n\t") + "tuple->" + e + conv_info.ret_conv[1].replace("\n", "\n\t") + "\n") + write_c("\treturn " + conv_info.ret_conv_name + ";\n") + else: + write_c("\treturn tuple->" + e + ";\n") + write_c("}\n") elif alias_match.group(1) in result_templ_structs: result_types.add(alias_match.group(2)) human_ty = alias_match.group(2).replace("LDKCResult", "Result") @@ -1721,7 +1842,7 @@ class CommonBase { out_java_struct.write("public class " + human_ty + " extends CommonBase {\n") out_java_struct.write("\tprivate " + human_ty + "(Object _dummy, long ptr) { super(ptr); }\n") out_java_struct.write("\tprotected void finalize() throws Throwable {\n") - out_java_struct.write("\t\tbindings." + alias_match.group(2).replace("LDK","") + "_free(ptr); super.finalize();\n") + out_java_struct.write("\t\tif (ptr != 0) { bindings." + alias_match.group(2).replace("LDK","") + "_free(ptr); } super.finalize();\n") out_java_struct.write("\t}\n\n") out_java_struct.write("\tstatic " + human_ty + " constr_from_ptr(long ptr) {\n") out_java_struct.write("\t\tif (bindings." + alias_match.group(2) + "_result_ok(ptr)) {\n") @@ -1737,23 +1858,23 @@ class CommonBase { err_map = map_type(err_ty + " err", True, None, False, True) out_java.write("\tpublic static native boolean " + alias_match.group(2) + "_result_ok(long arg);\n") - out_c.write("JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1result_1ok (JNIEnv * env, jclass _a, jlong arg) {\n") - out_c.write("\treturn ((" + alias_match.group(2) + "*)arg)->result_ok;\n") - out_c.write("}\n") + write_c("JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1result_1ok (JNIEnv * env, jclass _a, jlong arg) {\n") + write_c("\treturn ((" + alias_match.group(2) + "*)arg)->result_ok;\n") + write_c("}\n") out_java.write("\tpublic static native " + res_map.java_ty + " " + alias_match.group(2) + "_get_ok(long arg);\n") - out_c.write("JNIEXPORT " + res_map.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1get_1ok (JNIEnv * _env, jclass _a, jlong arg) {\n") - out_c.write("\t" + alias_match.group(2) + " *val = (" + alias_match.group(2) + "*)arg;\n") - out_c.write("\tCHECK(val->result_ok);\n\t") + write_c("JNIEXPORT " + res_map.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1get_1ok (JNIEnv * _env, jclass _a, jlong arg) {\n") + write_c("\t" + alias_match.group(2) + " *val = (" + alias_match.group(2) + "*)arg;\n") + write_c("\tCHECK(val->result_ok);\n\t") out_java_struct.write("\tpublic static final class " + human_ty + "_OK extends " + human_ty + " {\n") if res_map.ret_conv is not None: - out_c.write(res_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.result)") - out_c.write(res_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + res_map.ret_conv_name) + write_c(res_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.result)") + write_c(res_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + res_map.ret_conv_name) else: - out_c.write("return *val->contents.result") - out_c.write(";\n}\n") + write_c("return *val->contents.result") + write_c(";\n}\n") - out_java_struct.write("\t\tpublic " + res_map.java_hu_ty + " res;\n") + out_java_struct.write("\t\tpublic final " + res_map.java_hu_ty + " res;\n") out_java_struct.write("\t\tprivate " + human_ty + "_OK(Object _dummy, long ptr) {\n") out_java_struct.write("\t\t\tsuper(_dummy, ptr);\n") if res_map.to_hu_conv is not None: @@ -1762,21 +1883,32 @@ class CommonBase { out_java_struct.write("\n\t\t\tthis.res = " + res_map.to_hu_conv_name + ";\n") else: out_java_struct.write("\t\t\tthis.res = bindings." + alias_match.group(2) + "_get_ok(ptr);\n") - out_java_struct.write("\t\t}\n\n") + out_java_struct.write("\t\t}\n") + if alias_match.group(2).startswith("LDKCResult_None"): + out_java_struct.write("\t\tpublic " + human_ty + "_OK() {\n\t\t\tthis(null, bindings.C" + human_ty + "_ok());\n") + else: + out_java_struct.write("\t\tpublic " + human_ty + "_OK(" + res_map.java_hu_ty + " res) {\n") + if res_map.from_hu_conv is not None: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_ok(" + res_map.from_hu_conv[0] + "));\n") + if res_map.from_hu_conv[1] != "": + out_java_struct.write("\t\t\t" + res_map.from_hu_conv[1] + ";\n") + else: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_ok(res));\n") + out_java_struct.write("\t\t}\n\t}\n\n") out_java.write("\tpublic static native " + err_map.java_ty + " " + alias_match.group(2) + "_get_err(long arg);\n") - out_c.write("JNIEXPORT " + err_map.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1get_1err (JNIEnv * _env, jclass _a, jlong arg) {\n") - out_c.write("\t" + alias_match.group(2) + " *val = (" + alias_match.group(2) + "*)arg;\n") - out_c.write("\tCHECK(!val->result_ok);\n\t") - out_java_struct.write("\t}\n\tpublic static final class " + human_ty + "_Err extends " + human_ty + " {\n") + write_c("JNIEXPORT " + err_map.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1get_1err (JNIEnv * _env, jclass _a, jlong arg) {\n") + write_c("\t" + alias_match.group(2) + " *val = (" + alias_match.group(2) + "*)arg;\n") + write_c("\tCHECK(!val->result_ok);\n\t") + out_java_struct.write("\tpublic static final class " + human_ty + "_Err extends " + human_ty + " {\n") if err_map.ret_conv is not None: - out_c.write(err_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.err)") - out_c.write(err_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + err_map.ret_conv_name) + write_c(err_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.err)") + write_c(err_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + err_map.ret_conv_name) else: - out_c.write("return *val->contents.err") - out_c.write(";\n}\n") + write_c("return *val->contents.err") + write_c(";\n}\n") - out_java_struct.write("\t\tpublic " + err_map.java_hu_ty + " err;\n") + out_java_struct.write("\t\tpublic final " + err_map.java_hu_ty + " err;\n") out_java_struct.write("\t\tprivate " + human_ty + "_Err(Object _dummy, long ptr) {\n") out_java_struct.write("\t\t\tsuper(_dummy, ptr);\n") if err_map.to_hu_conv is not None: @@ -1785,6 +1917,18 @@ class CommonBase { out_java_struct.write("\n\t\t\tthis.err = " + err_map.to_hu_conv_name + ";\n") else: out_java_struct.write("\t\t\tthis.err = bindings." + alias_match.group(2) + "_get_err(ptr);\n") + out_java_struct.write("\t\t}\n") + + if alias_match.group(2).endswith("NoneZ"): + out_java_struct.write("\t\tpublic " + human_ty + "_Err() {\n\t\t\tthis(null, bindings.C" + human_ty + "_err());\n") + else: + out_java_struct.write("\t\tpublic " + human_ty + "_Err(" + err_map.java_hu_ty + " err) {\n") + if err_map.from_hu_conv is not None: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_err(" + err_map.from_hu_conv[0] + "));\n") + if err_map.from_hu_conv[1] != "": + out_java_struct.write("\t\t\t" + err_map.from_hu_conv[1] + ";\n") + else: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_err(err));\n") out_java_struct.write("\t\t}\n\t}\n}\n") elif fn_ptr is not None: map_fn(line, fn_ptr, None, None) @@ -1805,3 +1949,16 @@ class CommonBase { for struct_name in trait_structs: with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "a") as out_java_struct: out_java_struct.write("}\n") +with open(sys.argv[4], "w") as out_c: + out_c.write(c_file_pfx) + for ty in c_array_class_caches: + if ty + "_clz" in c_file: + out_c.write("static jclass " + ty + "_clz = NULL;\n") + out_c.write("JNIEXPORT void Java_org_ldk_impl_bindings_init_1class_1cache(JNIEnv * env, jclass _b) {\n") + for ty in c_array_class_caches: + if ty + "_clz" in c_file: + out_c.write("\t" + ty + "_clz = (*env)->FindClass(env, \"" + ty.replace("arr_of_", "[") + "\");\n") + out_c.write("\tCHECK(" + ty + "_clz != NULL);\n") + out_c.write("\t" + ty + "_clz = (*env)->NewGlobalRef(env, " + ty + "_clz);\n") + out_c.write("}\n") + out_c.write(c_file)