From: Matt Corallo Date: Fri, 8 Jan 2021 20:05:57 +0000 (-0500) Subject: Add TS bindings generation, with per-lang strings in their own file X-Git-Tag: v0.0.1~65 X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=7c816f6424920cfa7b38a6630b578bbd1bf6c903;p=ldk-java Add TS bindings generation, with per-lang strings in their own file --- diff --git a/bindingstypes.py b/bindingstypes.py new file mode 100644 index 00000000..e79b930a --- /dev/null +++ b/bindingstypes.py @@ -0,0 +1,73 @@ +class TypeInfo: + def __init__(self, is_native_primitive, rust_obj, java_ty, java_fn_ty_arg, java_hu_ty, c_ty, is_const, passed_as_ptr, is_ptr, var_name, arr_len, arr_access, subty=None): + self.is_native_primitive = is_native_primitive + self.rust_obj = rust_obj + self.java_ty = java_ty + self.java_hu_ty = java_hu_ty + self.java_fn_ty_arg = java_fn_ty_arg + self.c_ty = c_ty + self.is_const = is_const + self.passed_as_ptr = passed_as_ptr + self.is_ptr = is_ptr + self.var_name = var_name + self.arr_len = arr_len + self.arr_access = arr_access + self.subty = subty + self.pass_by_ref = is_ptr + self.requires_clone = None + + def get_full_rust_ty(self): + ret = "" + if self.is_const: + ret = "const " + if self.rust_obj is not None: + ret = ret + self.rust_obj + if self.is_ptr: + ret = ret + " *" + + if self.arr_len is not None and self.arr_len.isnumeric(): + if self.rust_obj is not None: + return (ret, "") + assert self.c_ty.endswith("Array") + if self.is_const: + return ("const u" + self.c_ty[:-5] + " (*", ")[" + self.arr_len + "]") + else: + return ("u" + self.c_ty[:-5] + " (*", ")[" + self.arr_len + "]") + if self.rust_obj is None: + if self.c_ty.startswith("int"): + # Ironically the entire API uses no signed integers. We really should handle this better, but for now just always add a u + return ("u" + self.c_ty, "") + if self.c_ty == "jboolean": + return ("bool", "") + return (self.c_ty, "") + return (ret, "") + +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): + assert(ty_info.c_ty is not None) + assert(ty_info.java_ty is not None) + assert(arg_name is not None) + self.passed_as_ptr = ty_info.passed_as_ptr + self.rust_obj = ty_info.rust_obj + self.c_ty = ty_info.c_ty + self.java_ty = ty_info.java_ty + self.java_hu_ty = ty_info.java_hu_ty + self.java_fn_ty_arg = ty_info.java_fn_ty_arg + self.is_native_primitive = ty_info.is_native_primitive + self.ty_info = ty_info + self.arg_name = arg_name + self.arg_conv = arg_conv + self.arg_conv_name = arg_conv_name + self.arg_conv_cleanup = arg_conv_cleanup + self.ret_conv = ret_conv + self.ret_conv_name = ret_conv_name + self.to_hu_conv = to_hu_conv + self.to_hu_conv_name = to_hu_conv_name + self.from_hu_conv = from_hu_conv + +class TraitMethInfo: + def __init__(self, fn_name, self_is_const, ret_ty_info, args_ty): + self.fn_name = fn_name + self.self_is_const = self_is_const + self.ret_ty_info = ret_ty_info + self.args_ty = args_ty diff --git a/genbindings.py b/genbindings.py index da3f49e2..24dbf20c 100755 --- a/genbindings.py +++ b/genbindings.py @@ -1,203 +1,34 @@ #!/usr/bin/env python3 import sys, re -if len(sys.argv) != 6: - print("USAGE: /path/to/lightning.h /path/to/bindings/output.java /path/to/bindings/ /path/to/bindings/output.c debug") - print("debug should be true or false and indicates whether to track allocations and ensure we don't leak") +if len(sys.argv) != 7: + print("USAGE: /path/to/lightning.h /path/to/bindings/output /path/to/bindings/ /path/to/bindings/output.c debug lang") sys.exit(1) -hu_struct_file_prefix = """package org.ldk.structs; - -import org.ldk.impl.bindings; -import org.ldk.enums.*; -import org.ldk.util.*; -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) -""" + DEBUG = False +elif sys.argv[5] == "true": + DEBUG = True 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); -} + print("debug should be true or false and indicates whether to track allocations and ensure we don't leak") + sys.exit(1) -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); -} +if sys.argv[6] == "java": + from java_strings import Consts +elif sys.argv[6] == "typescript": + from typescript_strings import Consts +else: + print("Only java or typescript can be set for lang") + sys.exit(1) +consts = Consts(DEBUG) -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); -} -""" +from bindingstypes import * 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 - self.rust_obj = rust_obj - self.java_ty = java_ty - self.java_hu_ty = java_hu_ty - self.java_fn_ty_arg = java_fn_ty_arg - self.c_ty = c_ty - self.passed_as_ptr = passed_as_ptr - self.is_ptr = is_ptr - self.var_name = var_name - self.arr_len = arr_len - 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): - assert(ty_info.c_ty is not None) - assert(ty_info.java_ty is not None) - assert(arg_name is not None) - self.passed_as_ptr = ty_info.passed_as_ptr - self.rust_obj = ty_info.rust_obj - self.c_ty = ty_info.c_ty - self.java_ty = ty_info.java_ty - self.java_hu_ty = ty_info.java_hu_ty - self.java_fn_ty_arg = ty_info.java_fn_ty_arg - self.is_native_primitive = ty_info.is_native_primitive - self.arg_name = arg_name - self.arg_conv = arg_conv - self.arg_conv_name = arg_conv_name - self.arg_conv_cleanup = arg_conv_cleanup - self.ret_conv = ret_conv - self.ret_conv_name = ret_conv_name - self.to_hu_conv = to_hu_conv - self.to_hu_conv_name = to_hu_conv_name - self.from_hu_conv = from_hu_conv - - def print_ty(self): - 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) - write_c(" " + self.arg_name) - else: - out_java.write(" arg") - write_c(" arg") - def camel_to_snake(s): # Convert camel case to snake case, in a way that appears to match cbindgen con = "_" @@ -330,11 +161,11 @@ def java_c_types(fn_arg, ret_arr_len): res.pass_by_ref = True if res.is_native_primitive or res.passed_as_ptr: return TypeInfo(rust_obj=fn_arg.split(" ")[0], java_ty=res.java_ty + "[]", java_hu_ty=res.java_hu_ty + "[]", - java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty=res.c_ty + "Array", passed_as_ptr=False, is_ptr=is_ptr, + java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty=res.c_ty + "Array", passed_as_ptr=False, is_ptr=is_ptr, is_const=is_const, var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False) else: return TypeInfo(rust_obj=fn_arg.split(" ")[0], java_ty=res.java_ty + "[]", java_hu_ty=res.java_hu_ty + "[]", - java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty="jobjectArray", passed_as_ptr=False, is_ptr=is_ptr, + java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty=consts.ptr_arr, passed_as_ptr=False, is_ptr=is_ptr, is_const=is_const, var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False) is_primitive = False @@ -353,7 +184,7 @@ def java_c_types(fn_arg, ret_arr_len): is_primitive = True elif fn_arg.startswith("uint8_t"): java_ty = "byte" - c_ty = "jbyte" + c_ty = "int8_t" fn_ty_arg = "B" fn_arg = fn_arg[7:].strip() is_primitive = True @@ -365,13 +196,14 @@ def java_c_types(fn_arg, ret_arr_len): is_primitive = True elif fn_arg.startswith("uint32_t"): java_ty = "int" - c_ty = "jint" + c_ty = "int32_t" fn_ty_arg = "I" fn_arg = fn_arg[8:].strip() is_primitive = True elif fn_arg.startswith("uint64_t") or fn_arg.startswith("uintptr_t"): + # TODO: uintptr_t is arch-dependent :( java_ty = "long" - c_ty = "jlong" + c_ty = "int64_t" fn_ty_arg = "J" if fn_arg.startswith("uint64_t"): fn_arg = fn_arg[8:].strip() @@ -394,13 +226,13 @@ def java_c_types(fn_arg, ret_arr_len): ma = var_ty_regex.match(fn_arg) if ma.group(1).strip() in unitary_enums: java_ty = ma.group(1).strip() - c_ty = "jclass" + c_ty = consts.result_c_ty fn_ty_arg = "Lorg/ldk/enums/" + ma.group(1).strip() + ";" fn_arg = ma.group(2).strip() rust_obj = ma.group(1).strip() - take_by_ptr = True elif ma.group(1).strip().startswith("LDKC2Tuple"): - java_ty = "long" + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty java_hu_ty = "TwoTuple<" if not ma.group(1).strip() in tuple_types: assert java_c_types_none_allowed @@ -416,13 +248,13 @@ def java_c_types(fn_arg, ret_arr_len): else: java_hu_ty = java_hu_ty + ty_info.java_hu_ty java_hu_ty = java_hu_ty + ">" - c_ty = "jlong" fn_ty_arg = "J" fn_arg = ma.group(2).strip() rust_obj = ma.group(1).strip() take_by_ptr = True elif ma.group(1).strip().startswith("LDKC3Tuple"): - java_ty = "long" + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty java_hu_ty = "ThreeTuple<" if not ma.group(1).strip() in tuple_types: assert java_c_types_none_allowed @@ -438,15 +270,14 @@ def java_c_types(fn_arg, ret_arr_len): else: java_hu_ty = java_hu_ty + ty_info.java_hu_ty java_hu_ty = java_hu_ty + ">" - c_ty = "jlong" fn_ty_arg = "J" fn_arg = ma.group(2).strip() rust_obj = ma.group(1).strip() take_by_ptr = True else: - java_ty = "long" + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty java_hu_ty = ma.group(1).strip().replace("LDKCResult", "Result").replace("LDK", "") - c_ty = "jlong" fn_ty_arg = "J" fn_arg = ma.group(2).strip() rust_obj = ma.group(1).strip() @@ -455,8 +286,8 @@ def java_c_types(fn_arg, ret_arr_len): if fn_arg.startswith(" *") or fn_arg.startswith("*"): fn_arg = fn_arg.replace("*", "").strip() is_ptr = True - c_ty = "jlong" - java_ty = "long" + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty fn_ty_arg = "J" is_primitive = False @@ -468,15 +299,15 @@ def java_c_types(fn_arg, ret_arr_len): c_ty = c_ty + "Array" if var_is_arr is not None: if var_is_arr.group(1) == "": - return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, + return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, is_const=is_const, passed_as_ptr=False, is_ptr=False, var_name="arg", arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False) - return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, + return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, is_const=is_const, passed_as_ptr=False, is_ptr=False, var_name=var_is_arr.group(1), arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False) if java_hu_ty is None: java_hu_ty = java_ty return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_hu_ty, java_fn_ty_arg=fn_ty_arg, c_ty=c_ty, passed_as_ptr=is_ptr or take_by_ptr, - is_ptr=is_ptr, var_name=fn_arg, arr_len=arr_len, arr_access=arr_access, is_native_primitive=is_primitive) + is_const=is_const, is_ptr=is_ptr, var_name=fn_arg, arr_len=arr_len, arr_access=arr_access, is_native_primitive=is_primitive) fn_ptr_regex = re.compile("^extern const ([A-Za-z_0-9\* ]*) \(\*(.*)\)\((.*)\);$") fn_ret_arr_regex = re.compile("(.*) \(\*(.*)\((.*)\)\)\[([0-9]*)\];$") @@ -526,35 +357,38 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: else: arr_name = "ret" arr_len = ret_arr_len - if ty_info.c_ty == "jbyteArray": - ret_conv = ("jbyteArray " + arr_name + "_arr = (*_env)->NewByteArray(_env, " + arr_len + ");\n" + "(*_env)->SetByteArrayRegion(_env, " + arr_name + "_arr, 0, " + arr_len + ", ", "") + if ty_info.c_ty == "int8_tArray": + (set_pfx, set_sfx) = consts.set_native_arr_contents(arr_name + "_arr", arr_len, ty_info) + ret_conv = ("int8_tArray " + arr_name + "_arr = " + consts.create_native_arr_call(arr_len, ty_info) + ";\n" + set_pfx, "") 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." + arr_len + " = (*_env)->GetArrayLength (_env, " + arr_name + ");\n" + arg_conv = arg_conv + arr_name + "_ref." + arr_len + " = " + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + ";\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 + ");" + arg_conv = arg_conv + consts.get_native_arr_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_name + "_ref." + arr_len, ty_info, True) + ";" 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);" + arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = " + consts.get_native_arr_contents(arr_name, "NO_DEST", arr_name + "_ref." + arr_len, ty_info, False) + ";" + arg_conv_cleanup = consts.cleanup_native_arr_ref_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_name + "_ref." + arr_len, ty_info) 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 + ");") + ret_conv = (ret_conv[0], ";\nint8_tArray " + arr_name + "_arr = " + consts.create_native_arr_call(arr_name + "_var." + arr_len, ty_info) + ";\n") + (pfx, sfx) = consts.set_native_arr_contents(arr_name + "_arr", arr_name + "_var." + arr_len, ty_info) + ret_conv = (ret_conv[0], ret_conv[1] + pfx + arr_name + "_var." + ty_info.arr_access + sfx + ";") 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" - arg_conv = arg_conv + "(*_env)->GetByteArrayRegion (_env, " + arr_name + ", 0, " + arr_len + ", " + arr_name + "_ref." + ty_info.arr_access + ");" - ret_conv = (ret_conv[0], "." + ty_info.arr_access + ");") + arg_conv = arg_conv + "CHECK(" + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + " == " + arr_len + ");\n" + arg_conv = arg_conv + consts.get_native_arr_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_len, ty_info, True) + ";" + ret_conv = (ret_conv[0], "." + ty_info.arr_access + set_sfx + ";") else: arg_conv = "unsigned char " + arr_name + "_arr[" + arr_len + "];\n" - arg_conv = arg_conv + "CHECK((*_env)->GetArrayLength (_env, " + arr_name + ") == " + arr_len + ");\n" - arg_conv = arg_conv + "(*_env)->GetByteArrayRegion (_env, " + arr_name + ", 0, " + arr_len + ", " + arr_name + "_arr);\n" + "unsigned char (*" + arr_name + "_ref)[" + arr_len + "] = &" + arr_name + "_arr;" - ret_conv = (ret_conv[0] + "*", ");") + arg_conv = arg_conv + "CHECK(" + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + " == " + arr_len + ");\n" + arg_conv = arg_conv + consts.get_native_arr_contents(arr_name, arr_name + "_arr", arr_len, ty_info, True) + ";\n" + arg_conv = arg_conv + "unsigned char (*" + arr_name + "_ref)[" + arr_len + "] = &" + arr_name + "_arr;" + ret_conv = (ret_conv[0] + "*", set_sfx + ";") return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, arg_conv = arg_conv, arg_conv_name = arr_name + "_ref", arg_conv_cleanup = arg_conv_cleanup, ret_conv = ret_conv, ret_conv_name = arr_name + "_arr", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) @@ -572,7 +406,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: if arr_name == "": arr_name = "arg" arg_conv = ty_info.rust_obj + " " + arr_name + "_constr;\n" - arg_conv = arg_conv + arr_name + "_constr." + arr_len + " = (*_env)->GetArrayLength (_env, " + arr_name + ");\n" + arg_conv = arg_conv + arr_name + "_constr." + arr_len + " = " + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + ";\n" arg_conv = arg_conv + "if (" + arr_name + "_constr." + arr_len + " > 0)\n" if subty.rust_obj is None: szof = subty.c_ty @@ -581,19 +415,22 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: arg_conv = arg_conv + "\t" + arr_name + "_constr." + ty_info.arr_access + " = MALLOC(" + arr_name + "_constr." + arr_len + " * sizeof(" + szof + "), \"" + ty_info.rust_obj + " Elements\");\n" arg_conv = arg_conv + "else\n" arg_conv = arg_conv + "\t" + arr_name + "_constr." + ty_info.arr_access + " = NULL;\n" - if not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"): - arg_conv = arg_conv + ty_info.java_ty.strip("[]") + "* " + arr_name + "_vals = (*_env)->Get" + ty_info.subty.java_ty.title() + "ArrayElements (_env, " + arr_name + ", NULL);\n" + get_arr = consts.get_native_arr_contents(arr_name, "NO_DEST", arr_name + "_constr." + arr_len, ty_info, False) + if get_arr != None: + arg_conv = arg_conv + subty.c_ty + "* " + arr_name + "_vals = " + get_arr + ";\n" arg_conv = arg_conv + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_constr." + arr_len + "; " + idxc + "++) {\n" - if not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"): - arg_conv = arg_conv + "\t" + ty_info.java_ty.strip("[]") + " " + conv_name + " = " + arr_name + "_vals[" + idxc + "];" + if get_arr != None: + arg_conv = arg_conv + "\t" + subty.c_ty + " " + conv_name + " = " + arr_name + "_vals[" + idxc + "];" if subty.arg_conv is not None: arg_conv = arg_conv + "\n\t" + subty.arg_conv.replace("\n", "\n\t") else: - arg_conv = arg_conv + "\tjobject " + conv_name + " = (*_env)->GetObjectArrayElement(_env, " + arr_name + ", " + idxc + ");\n" + arg_conv = arg_conv + "\t" + subty.c_ty + " " + conv_name + " = " + consts.get_native_arr_elem(arr_name, idxc, ty_info) + ";\n" arg_conv = arg_conv + "\t" + subty.arg_conv.replace("\n", "\n\t") arg_conv = arg_conv + "\n\t" + arr_name + "_constr." + ty_info.arr_access + "[" + idxc + "] = " + subty.arg_conv_name + ";\n}" - if not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"): - arg_conv = arg_conv + "\n(*_env)->Release" + ty_info.java_ty.strip("[]").title() + "ArrayElements (_env, " + arr_name + ", " + arr_name + "_vals, 0);" + if get_arr != None: + cleanup = consts.cleanup_native_arr_ref_contents(arr_name, arr_name + "_vals", arr_name + "_constr." + arr_len, ty_info) + if cleanup is not None: + arg_conv = arg_conv + "\n" + cleanup + ";" if ty_info.is_ptr: arg_conv_name = "&" + arr_name + "_constr" else: @@ -608,22 +445,24 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: if subty.ret_conv is None: ret_conv = ("DUMMY", "DUMMY") elif not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"): - ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = (*_env)->New" + ty_info.java_ty.strip("[]").title() + "Array(_env, " + arr_name + "_var." + arr_len + ");\n") - ret_conv = (ret_conv[0], ret_conv[1] + subty.c_ty + " *" + arr_name + "_arr_ptr = (*_env)->GetPrimitiveArrayCritical(_env, " + arr_name + "_arr, NULL);\n") + ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = " + consts.create_native_arr_call(arr_name + "_var." + arr_len, ty_info) + ";\n") + ret_conv = (ret_conv[0], ret_conv[1] + subty.c_ty + " *" + arr_name + "_arr_ptr = " + consts.get_native_arr_ptr_call[0] + arr_name + "_arr" + consts.get_native_arr_ptr_call[1] + ";\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")) - 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);") + ret_conv = (ret_conv[0], ret_conv[1] + "\n\t" + arr_name + "_arr_ptr[" + idxc + "] = " + subty.ret_conv_name + ";\n}") + cleanup = consts.release_native_arr_ptr_call(arr_name + "_arr", arr_name + "_arr_ptr") + if cleanup is not None: + ret_conv = (ret_conv[0], ret_conv[1] + "\n" + cleanup + ";") else: 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], ";\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")) - ret_conv = (ret_conv[0], ret_conv[1] + "\n\t(*_env)->SetObjectArrayElement(_env, " + arr_name + "_arr, " + idxc + ", " + subty.ret_conv_name + ");\n") + ret_conv = (ret_conv[0], ret_conv[1] + "\n\t(*env)->SetObjectArrayElement(env, " + arr_name + "_arr, " + idxc + ", " + subty.ret_conv_name + ");\n") ret_conv = (ret_conv[0], ret_conv[1] + "}") if not holds_ref: # XXX: The commented if's are a bit smarter freeing, but we need to be a nudge smarter still @@ -659,7 +498,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: if ty_info.arr_access is None: 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 = ("jstring " + ty_info.var_name + "_conv = (*_env)->NewStringUTF(_env, ", ");"), ret_conv_name = ty_info.var_name + "_conv", + ret_conv = ("jstring " + ty_info.var_name + "_conv = (*env)->NewStringUTF(env, ", ");"), ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) else: return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, @@ -668,7 +507,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: ";\nchar* " + ty_info.var_name + "_buf = MALLOC(" + ty_info.var_name + "_str." + ty_info.arr_len + " + 1, \"str conv buf\");\n" + "memcpy(" + ty_info.var_name + "_buf, " + ty_info.var_name + "_str." + ty_info.arr_access + ", " + ty_info.var_name + "_str." + ty_info.arr_len + ");\n" + ty_info.var_name + "_buf[" + ty_info.var_name + "_str." + ty_info.arr_len + "] = 0;\n" + - "jstring " + ty_info.var_name + "_conv = (*_env)->NewStringUTF(_env, " + ty_info.var_name + "_str." + ty_info.arr_access + ");\n" + + "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 == "" and not print_void: @@ -743,11 +582,13 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: if not ty_info.is_ptr: if ty_info.rust_obj in unitary_enums: + (ret_pfx, ret_sfx) = consts.c_unitary_enum_to_native_call(ty_info) + (arg_pfx, arg_sfx) = consts.native_unitary_enum_to_c_call(ty_info) 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 = ty_info.rust_obj + " " + ty_info.var_name + "_conv = " + arg_pfx + ty_info.var_name + arg_sfx + ";", 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 = (ty_info.c_ty + " " + ty_info.var_name + "_conv = " + ret_pfx, ret_sfx + ";"), 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: @@ -900,19 +741,20 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: def map_fn(line, re_match, ret_arr_len, c_call_string): out_java.write("\t// " + line) out_java.write("\tpublic static native ") - write_c("JNIEXPORT ") + write_c(consts.c_fn_ty_pfx) is_free = re_match.group(2).endswith("_free") struct_meth = re_match.group(2).split("_")[0] ret_info = map_type(re_match.group(1), True, ret_arr_len, False, False) - ret_info.print_ty() + write_c(ret_info.c_ty) + out_java.write(ret_info.java_ty) if ret_info.ret_conv is not None: ret_conv_pfx, ret_conv_sfx = ret_info.ret_conv out_java.write(" " + re_match.group(2) + "(") - write_c(" JNICALL Java_org_ldk_impl_bindings_" + re_match.group(2).replace('_', '_1') + "(JNIEnv * _env, jclass _b") + write_c(" " + consts.c_fn_name_pfx + re_match.group(2).replace('_', '_1') + "(" + consts.c_fn_args_pfx) arg_names = [] default_constructor_args = {} @@ -925,8 +767,8 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: 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() + write_c(arg_conv_info.c_ty + " " + arg_conv_info.arg_name) + out_java.write(arg_conv_info.java_ty + " " + arg_conv_info.arg_name) if idx == 0 and arg_conv_info.java_hu_ty == struct_meth: takes_self = True if arg_conv_info.arg_conv is not None and "Warning" in arg_conv_info.arg_conv: @@ -1068,63 +910,26 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: def map_unitary_enum(struct_name, field_lines): 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) - 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: - out_java_enum.write("public enum " + struct_name + " {\n") + assert(struct_line == "typedef enum %s {" % struct_name) elif idx == len(field_lines) - 3: assert(struct_line.endswith("_Sentinel,")) elif idx == len(field_lines) - 2: - out_java_enum.write("\t; static native void init();\n") - out_java_enum.write("\tstatic { init(); }\n") - out_java_enum.write("}") - out_java.write("\tstatic { " + struct_name + ".values(); /* Force enum statics to run */ }\n") + assert(struct_line == "} %s;" % struct_name) elif idx == len(field_lines) - 1: assert(struct_line == "") - else: - out_java_enum.write(struct_line + "\n") - write_c("\t\tcase %d: return %s;\n" % (ord_v, struct_line.strip().strip(","))) - ord_v = ord_v + 1 - write_c("\t}\n") - write_c("\tabort();\n") - write_c("}\n") - - ord_v = 0 - 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(",") - 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(",") - 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(",") - 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 - write_c("\t\tdefault: abort();\n") - write_c("\t}\n") - write_c("}\n\n") - + (c_out, native_file_out, native_out) = consts.native_c_unitary_enum_map(struct_name, [x.strip().strip(",") for x in field_lines[1:-3]]) + write_c(c_out) + out_java_enum.write(native_file_out) + out_java.write(native_out) + def map_complex_enum(struct_name, union_enum_items): java_hu_type = struct_name.replace("LDK", "") complex_enums.add(struct_name) with open(sys.argv[3] + "/structs/" + java_hu_type + ".java", "w") as out_java_enum: - out_java_enum.write(hu_struct_file_prefix) + out_java_enum.write(consts.hu_struct_file_prefix) out_java_enum.write("public class " + java_hu_type + " extends CommonBase {\n") out_java_enum.write("\tprivate " + java_hu_type + "(Object _dummy, long ptr) { super(ptr); }\n") out_java_enum.write("\t@Override @SuppressWarnings(\"deprecation\")\n") @@ -1140,23 +945,23 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: init_meth_jty_strs = {} for idx, struct_line in enumerate(tag_field_lines): if idx == 0: - out_java.write("\tpublic static class " + struct_name + " {\n") - out_java.write("\t\tprivate " + struct_name + "() {}\n") + assert(struct_line == "typedef enum %s_Tag {" % struct_name) elif idx == len(tag_field_lines) - 3: assert(struct_line.endswith("_Sentinel,")) elif idx == len(tag_field_lines) - 2: - out_java.write("\t\tstatic native void init();\n") - out_java.write("\t}\n") + assert(struct_line == "} %s_Tag;" % struct_name) elif idx == len(tag_field_lines) - 1: assert(struct_line == "") - else: + + out_java.write("\tpublic static class " + struct_name + " {\n") + out_java.write("\t\tprivate " + struct_name + "() {}\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_java.write("\t\tpublic final static class " + var_name + " extends " + struct_name + " {\n") 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") - 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 = "" @@ -1188,29 +993,23 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: java_hu_subclasses = java_hu_subclasses + hu_conv_body java_hu_subclasses = java_hu_subclasses + "\t\t}\n\t}\n" init_meth_jty_strs[var_name] = init_meth_jty_str + out_java.write("\t\tstatic native void init();\n") + out_java.write("\t}\n") 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"); - 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:] - 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(consts.c_complex_enum_pfx(struct_name, [x.strip(", ")[len(struct_name) + 1:] for x in tag_field_lines[1:-3]], init_meth_jty_strs)) + + write_c(consts.c_fn_ty_pfx + consts.c_complex_enum_pass_ty(struct_name) + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1ref_1from_1ptr (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " 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:] write_c("\t\tcase " + struct_name + "_" + var_name + ": {\n") - c_params_text = "" + c_params = [] if "LDK" + var_name in union_enum_items: enum_var_lines = union_enum_items["LDK" + var_name] for idx, field in enumerate(enum_var_lines): @@ -1220,34 +1019,40 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: 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 + c_params.append(field_map.ret_conv_name) else: - c_params_text = c_params_text + ", obj->" + camel_to_snake(var_name) + "." + field_map.arg_name - write_c("\t\t\treturn (*_env)->NewObject(_env, " + struct_name + "_" + var_name + "_class, " + struct_name + "_" + var_name + "_meth" + c_params_text + ");\n") + c_params.append("obj->" + camel_to_snake(var_name) + "." + field_map.arg_name) + write_c("\t\t\treturn " + consts.c_constr_native_complex_enum(struct_name, var_name, c_params) + ";\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: - 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") + with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + consts.file_ext, "w") as out_java_trait: field_var_convs = [] for var_line in field_var_lines: if var_line.group(1) in trait_structs: - write_c("\t" + var_line.group(1) + "_JCalls* " + var_line.group(2) + ";\n") - field_var_convs.append(None) + field_var_convs.append((var_line.group(1), var_line.group(2))) else: field_var_convs.append(map_type(var_line.group(1) + " " + var_line.group(2), False, None, False, False)) + + field_fns = [] for fn_line in trait_fn_lines: - if fn_line.group(3) != "free" and fn_line.group(3) != "clone": - write_c("\tjmethodID " + fn_line.group(3) + "_meth;\n") - write_c("} " + struct_name + "_JCalls;\n") + ret_ty_info = map_type(fn_line.group(2), True, None, False, False) + is_const = fn_line.group(4) is not None + + arg_tys = [] + for idx, arg in enumerate(fn_line.group(5).split(',')): + if arg == "": + continue + arg_conv_info = map_type(arg, True, None, False, False) + arg_tys.append(arg_conv_info) + field_fns.append(TraitMethInfo(fn_line.group(3), is_const, ret_ty_info, arg_tys)) + + write_c(consts.native_c_map_trait(struct_name, field_var_convs, field_fns)[1]) - out_java_trait.write(hu_struct_file_prefix) + out_java_trait.write(consts.hu_struct_file_prefix) out_java_trait.write("public class " + struct_name.replace("LDK","") + " extends CommonBase {\n") 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") @@ -1303,11 +1108,6 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: java_trait_constr = java_trait_constr + "\t\t\t@Override public " + ret_ty_info.java_ty + " " + fn_line.group(3) + "(" out_java_trait.write("\t\t" + ret_ty_info.java_hu_ty + " " + fn_line.group(3) + "(") is_const = fn_line.group(4) is not None - write_c(fn_line.group(2) + fn_line.group(3) + "_jcall(") - if is_const: - write_c("const void* this_arg") - else: - write_c("void* this_arg") arg_names = [] for idx, arg in enumerate(fn_line.group(5).split(',')): @@ -1317,9 +1117,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: out_java.write(", ") java_trait_constr = java_trait_constr + ", " out_java_trait.write(", ") - write_c(", ") arg_conv_info = map_type(arg, True, None, False, False) - 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_hu_ty + " " + arg_conv_info.arg_name) java_trait_constr = java_trait_constr + arg_conv_info.java_ty + " " + arg_conv_info.arg_name @@ -1331,47 +1129,24 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: out_java.write(");\n") out_java_trait.write(");\n") java_trait_constr = java_trait_constr + ") {\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: - 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" - write_c("\tjobject obj = (*_env)->NewLocalRef(_env, j_calls->o);\n\tCHECK(obj != NULL);\n") - if ret_ty_info.c_ty.endswith("Array"): - write_c("\t" + ret_ty_info.c_ty + " arg = (*_env)->CallObjectMethod(_env, obj, j_calls->" + fn_line.group(3) + "_meth") - elif not ret_ty_info.passed_as_ptr: - write_c("\treturn (*_env)->Call" + ret_ty_info.java_ty.title() + "Method(_env, obj, j_calls->" + fn_line.group(3) + "_meth") - else: - write_c("\t" + fn_line.group(2).strip() + "* ret = (" + fn_line.group(2).strip() + "*)(*_env)->CallLongMethod(_env, obj, j_calls->" + fn_line.group(3) + "_meth"); if ret_ty_info.java_ty != "void": java_trait_constr = java_trait_constr + "\t\t\t\t" + ret_ty_info.java_hu_ty + " ret = arg." + fn_line.group(3) + "(" else: java_trait_constr = java_trait_constr + "\t\t\t\targ." + fn_line.group(3) + "(" for idx, arg_info in enumerate(arg_names): - if arg_info.ret_conv is not None: - write_c(", " + arg_info.ret_conv_name) - else: - 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: - 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: @@ -1385,15 +1160,6 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: 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(3) == "free": - 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: @@ -1416,7 +1182,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: out_java.write("\t}\n") out_java.write("\tpublic static native long " + struct_name + "_new(" + struct_name + " impl") - write_c("static inline " + struct_name + " " + struct_name + "_init (JNIEnv * env, jclass _a, jobject o") + write_c("static inline " + struct_name + " " + struct_name + "_init (" + consts.c_fn_args_pfx + ", 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)) @@ -1438,7 +1204,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: write_c("\tcalls->" + fn_line.group(3) + "_meth = (*env)->GetMethodID(env, c, \"" + fn_line.group(3) + "\", \"" + java_meth_descr + "\");\n") write_c("\tCHECK(calls->" + fn_line.group(3) + "_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: + if var_line.group(1) not in trait_structs 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") @@ -1451,7 +1217,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: 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: - write_c("\t\t." + var_line.group(2) + " = " + var_line.group(1) + "_init(env, _a, " + var_line.group(2) + "),\n") + write_c("\t\t." + var_line.group(2) + " = " + var_line.group(1) + "_init(env, clz, " + 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") @@ -1465,7 +1231,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: write_c("\treturn ret;\n") write_c("}\n") - write_c("JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new (JNIEnv * env, jclass _a, jobject o") + write_c(consts.c_fn_ty_pfx + "long " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new (" + consts.c_fn_args_pfx + ", jobject o") for idx, var_line in enumerate(field_var_lines): if var_line.group(1) in trait_structs: write_c(", jobject " + var_line.group(2)) @@ -1473,7 +1239,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: 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") + write_c("\t*res_ptr = " + struct_name + "_init(env, clz, o") for var_line in field_var_lines: write_c(", " + var_line.group(2)) write_c(");\n") @@ -1481,7 +1247,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: write_c("}\n") out_java.write("\tpublic static native " + struct_name + " " + struct_name + "_get_obj_from_jcalls(long val);\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(consts.c_fn_ty_pfx + "jobject " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1obj_1from_1jcalls (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " 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") @@ -1506,8 +1272,8 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: def map_result(struct_name, res_ty, err_ty): result_types.add(struct_name) human_ty = struct_name.replace("LDKCResult", "Result") - with open(sys.argv[3] + "/structs/" + human_ty + ".java", "w") as out_java_struct: - out_java_struct.write(hu_struct_file_prefix) + with open(sys.argv[3] + "/structs/" + human_ty + consts.file_ext, "w") as out_java_struct: + out_java_struct.write(consts.hu_struct_file_prefix) 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") @@ -1530,12 +1296,12 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: can_clone = False out_java.write("\tpublic static native boolean " + struct_name + "_result_ok(long arg);\n") - write_c("JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1result_1ok (JNIEnv * env, jclass _a, jlong arg) {\n") + write_c(consts.c_fn_ty_pfx + "jboolean " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1result_1ok (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " arg) {\n") write_c("\treturn ((" + struct_name + "*)arg)->result_ok;\n") write_c("}\n") out_java.write("\tpublic static native " + res_map.java_ty + " " + struct_name + "_get_ok(long arg);\n") - write_c("JNIEXPORT " + res_map.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1get_1ok (JNIEnv * _env, jclass _a, jlong arg) {\n") + write_c(consts.c_fn_ty_pfx + res_map.c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1ok (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " arg) {\n") write_c("\t" + struct_name + " *val = (" + struct_name + "*)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") @@ -1572,7 +1338,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: out_java_struct.write("\t\t}\n\t}\n\n") out_java.write("\tpublic static native " + err_map.java_ty + " " + struct_name + "_get_err(long arg);\n") - write_c("JNIEXPORT " + err_map.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1get_1err (JNIEnv * _env, jclass _a, jlong arg) {\n") + write_c(consts.c_fn_ty_pfx + err_map.c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1err (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " arg) {\n") write_c("\t" + struct_name + " *val = (" + struct_name + "*)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") @@ -1639,7 +1405,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: def map_tuple(struct_name, field_lines): out_java.write("\tpublic static native long " + struct_name + "_new(") - write_c("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new(JNIEnv *_env, jclass _b") + write_c(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new(" + consts.c_fn_args_pfx) ty_list = [] for idx, line in enumerate(field_lines): if idx != 0 and idx < len(field_lines) - 2: @@ -1685,7 +1451,7 @@ with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: for idx, ty_info in enumerate(ty_list): e = chr(ord('a') + idx) out_java.write("\tpublic static native " + ty_info.java_ty + " " + struct_name + "_get_" + e + "(long ptr);\n") - write_c("JNIEXPORT " + ty_info.c_ty + " JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1get_1" + e + "(JNIEnv *_env, jclass _b, jlong ptr) {\n") + write_c(consts.c_fn_ty_pfx + ty_info.c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1" + e + "(" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " ptr) {\n") write_c("\t" + struct_name + " *tuple = (" + struct_name + "*)ptr;\n") conv_info = map_type_with_info(ty_info, False, None, False, True) if conv_info.ret_conv is not None: @@ -1728,96 +1494,8 @@ public class bindings { public static native long new_empty_slice_vec(); """) - write_c(""" -static jmethodID ordinal_meth = NULL; -static jmethodID slicedef_meth = NULL; -static jclass slicedef_cls = NULL; -JNIEXPORT void Java_org_ldk_impl_bindings_init(JNIEnv * env, jclass _b, jclass enum_class, jclass slicedef_class) { - ordinal_meth = (*env)->GetMethodID(env, enum_class, "ordinal", "()I"); - CHECK(ordinal_meth != NULL); - slicedef_meth = (*env)->GetMethodID(env, slicedef_class, "", "(JJJ)V"); - CHECK(slicedef_meth != NULL); - slicedef_cls = (*env)->NewGlobalRef(env, slicedef_class); - CHECK(slicedef_cls != NULL); -} -JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_deref_1bool (JNIEnv * env, jclass _a, jlong ptr) { - return *((bool*)ptr); -} -JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_deref_1long (JNIEnv * env, jclass _a, jlong ptr) { - return *((long*)ptr); -} -JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_free_1heap_1ptr (JNIEnv * env, jclass _a, jlong ptr) { - FREE((void*)ptr); -} -JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_read_1bytes (JNIEnv * _env, jclass _b, jlong ptr, jlong len) { - jbyteArray ret_arr = (*_env)->NewByteArray(_env, len); - (*_env)->SetByteArrayRegion(_env, ret_arr, 0, len, (unsigned char*)ptr); - return ret_arr; -} -JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_get_1u8_1slice_1bytes (JNIEnv * _env, jclass _b, jlong slice_ptr) { - LDKu8slice *slice = (LDKu8slice*)slice_ptr; - jbyteArray ret_arr = (*_env)->NewByteArray(_env, slice->datalen); - (*_env)->SetByteArrayRegion(_env, ret_arr, 0, slice->datalen, slice->data); - return ret_arr; -} -JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_bytes_1to_1u8_1vec (JNIEnv * _env, jclass _b, jbyteArray bytes) { - LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "LDKCVec_u8"); - vec->datalen = (*_env)->GetArrayLength(_env, bytes); - vec->data = (uint8_t*)MALLOC(vec->datalen, "LDKCVec_u8Z Bytes"); - (*_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 = 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 - _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"); - _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_C2Tuple_usizeTransactionZZ, datalen), "Vec<*> needs to be mapped identically"); - LDKCVec_u8Z *vec = (LDKCVec_u8Z*)ptr; - 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 - _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"); - _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_C2Tuple_usizeTransactionZZ), "Vec<*> needs to be mapped identically"); - LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "Empty LDKCVec"); - vec->data = NULL; - vec->datalen = 0; - return (long)vec; -} - -// We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed) -_Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec and [u8] need to have been mapped identically"); -_Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec and [u8] need to have been mapped identically"); -_Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec and [u8] need to have been mapped identically"); - -""") - - with open(sys.argv[3] + "/structs/CommonBase.java", "a") as out_java_struct: + with open(sys.argv[3] + "/structs/CommonBase" + consts.file_ext, "a") as out_java_struct: out_java_struct.write("""package org.ldk.structs; import java.util.LinkedList; class CommonBase { @@ -1916,8 +1594,8 @@ class CommonBase { if is_opaque: opaque_structs.add(struct_name) - with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "w") as out_java_struct: - out_java_struct.write(hu_struct_file_prefix) + with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + consts.file_ext, "w") as out_java_struct: + out_java_struct.write(consts.hu_struct_file_prefix) out_java_struct.write("public class " + struct_name.replace("LDK","") + " extends CommonBase") if struct_name.startswith("LDKLocked"): out_java_struct.write(" implements AutoCloseable") @@ -1946,37 +1624,17 @@ class CommonBase { elif is_tuple: map_tuple(struct_name, field_lines) 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") - 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") - 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: - 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: - 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") - 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(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new(" + consts.c_fn_args_pfx + ", " + ty_info.c_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("\tret->datalen = " + consts.get_native_arr_len_call[0] + "elems" + consts.get_native_arr_len_call[1] + ";\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\t" + ty_info.c_ty + " *java_elems = " + consts.get_native_arr_ptr_call[0] + "elems" + consts.get_native_arr_ptr_call[1] + ";\n") write_c("\t\tfor (size_t i = 0; i < ret->datalen; i++) {\n") if ty_info.arg_conv is not None: write_c("\t\t\t" + ty_info.c_ty + " arr_elem = java_elems[i];\n") @@ -1986,7 +1644,9 @@ class CommonBase { else: 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") + cleanup = consts.release_native_arr_ptr_call("elems", "java_elems") + if cleanup is not None: + write_c("\t\t" + cleanup + ";\n") write_c("\t}\n") write_c("\treturn (long)ret;\n") write_c("}\n") @@ -2020,8 +1680,8 @@ class CommonBase { trait_structs.add(struct_name) map_trait(struct_name, field_var_lines, trait_fn_lines) elif struct_name == "LDKTxOut": - with open(sys.argv[3] + "/structs/TxOut.java", "w") as out_java_struct: - out_java_struct.write(hu_struct_file_prefix) + with open(sys.argv[3] + "/structs/TxOut" + consts.file_ext, "w") as out_java_struct: + out_java_struct.write(consts.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") @@ -2067,21 +1727,12 @@ class CommonBase { out_java.write("}\n") for struct_name in opaque_structs: - with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "a") as out_java_struct: + with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + consts.file_ext, "a") as out_java_struct: out_java_struct.write("}\n") for struct_name in trait_structs: - with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "a") as out_java_struct: + with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + consts.file_ext, "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(consts.c_file_pfx) + out_c.write(consts.init_str(c_array_class_caches)) out_c.write(c_file) diff --git a/genbindings.sh b/genbindings.sh index 07f0d980..f3ffe438 100755 --- a/genbindings.sh +++ b/genbindings.sh @@ -8,16 +8,37 @@ usage() { [ "$1" = "" -o "$2" = "" ] && usage [ "$3" != "true" -a "$3" != "false" ] && usage +COMMON_COMPILE="clang -std=c11 -Wall -Wno-nullability-completeness -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers -Wno-unused-function -Wno-pointer-sign" + set -e + +echo "Creating Java bindings..." mkdir -p src/main/java/org/ldk/{enums,structs} rm -f src/main/java/org/ldk/{enums,structs}/*.java rm -f src/main/jni/*.h -./genbindings.py "$1/lightning-c-bindings/include/lightning.h" src/main/java/org/ldk/impl/bindings.java src/main/java/org/ldk src/main/jni/bindings.c $3 +./genbindings.py "$1/lightning-c-bindings/include/lightning.h" src/main/java/org/ldk/impl/bindings.java src/main/java/org/ldk src/main/jni/bindings.c $3 java javac -h src/main/jni src/main/java/org/ldk/enums/*.java src/main/java/org/ldk/impl/bindings.java rm src/main/java/org/ldk/enums/*.class src/main/java/org/ldk/impl/bindings*.class -COMPILE="clang -std=c11 -Wall -Wno-nullability-completeness -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers -Wno-unused-function -Wl,--no-undefined -pthread -ldl -o liblightningjni.so -shared -fPIC -Wno-pointer-sign -Isrc/main/jni" + +echo "Building Java bindings..." +COMPILE="$COMMON_COMPILE -Isrc/main/jni -pthread -ldl -Wl,--no-undefined -o liblightningjni.so -shared -fPIC" if [ "$3" = "true" ]; then $COMPILE -g -fsanitize=address -shared-libasan -Wl,-wrap,calloc -Wl,-wrap,realloc -Wl,-wrap,reallocarray -Wl,-wrap,malloc -Wl,-wrap,free -rdynamic -I"$1"/lightning-c-bindings/include/ $2 src/main/jni/bindings.c "$1"/lightning-c-bindings/target/debug/libldk.a else $COMPILE -Wl,--version-script=libcode.version -flto -fuse-ld=lld -O3 -I"$1"/lightning-c-bindings/include/ $2 src/main/jni/bindings.c "$1"/lightning-c-bindings/target/release/libldk.a fi + +echo "Creating TS bindings..." +mkdir -p ts/{enums,structs} +rm -f ts/{enums,structs}/*.ts +./genbindings.py "$1/lightning-c-bindings/include/lightning.h" ts/bindings.ts ts ts/bindings.c $3 typescript + +echo "Building TS bindings..." +COMPILE="$COMMON_COMPILE -flto -Wl,--no-entry -Wl,--export-dynamic -nostdlib --target=wasm32-unknown-unknown -o liblightningjs.wasm" +# We only need malloc and assert/abort, but for now just use WASI for those: +EXTRA_LINK=/usr/lib/wasm32-wasi/libc.a +if [ "$3" = "true" ]; then + $COMPILE -g -Wl,-wrap,calloc -Wl,-wrap,realloc -Wl,-wrap,reallocarray -Wl,-wrap,malloc -Wl,-wrap,free -I"$1"/lightning-c-bindings/include/ ts/bindings.c "$1"/lightning-c-bindings/target/wasm32-unknown-unknown/debug/libldk.a $EXTRA_LINK +else + $COMPILE -s -Os -I"$1"/lightning-c-bindings/include/ ts/bindings.c "$1"/lightning-c-bindings/target/wasm32-unknown-unknown/release/libldk.a $EXTRA_LINK +fi diff --git a/java_strings.py b/java_strings.py new file mode 100644 index 00000000..45bb7e82 --- /dev/null +++ b/java_strings.py @@ -0,0 +1,435 @@ +from bindingstypes import * + +class Consts: + def __init__(self, DEBUG): + self.c_file_pfx = """#include \"org_ldk_impl_bindings.h\" +#include +#include +#include +#include +#include +""" + + if not DEBUG: + self.c_file_pfx = self.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: + self.c_file_pfx = self.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 + DO_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); +} +""" + self.c_file_pfx = self.c_file_pfx + """ +static jmethodID ordinal_meth = NULL; +static jmethodID slicedef_meth = NULL; +static jclass slicedef_cls = NULL; +JNIEXPORT void Java_org_ldk_impl_bindings_init(JNIEnv * env, jclass _b, jclass enum_class, jclass slicedef_class) { + ordinal_meth = (*env)->GetMethodID(env, enum_class, "ordinal", "()I"); + CHECK(ordinal_meth != NULL); + slicedef_meth = (*env)->GetMethodID(env, slicedef_class, "", "(JJJ)V"); + CHECK(slicedef_meth != NULL); + slicedef_cls = (*env)->NewGlobalRef(env, slicedef_class); + CHECK(slicedef_cls != NULL); +} + +JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_deref_1bool (JNIEnv * env, jclass _a, jlong ptr) { + return *((bool*)ptr); +} +JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_deref_1long (JNIEnv * env, jclass _a, jlong ptr) { + return *((long*)ptr); +} +JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_free_1heap_1ptr (JNIEnv * env, jclass _a, jlong ptr) { + FREE((void*)ptr); +} +JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_read_1bytes (JNIEnv * env, jclass _b, jlong ptr, jlong len) { + jbyteArray ret_arr = (*env)->NewByteArray(env, len); + (*env)->SetByteArrayRegion(env, ret_arr, 0, len, (unsigned char*)ptr); + return ret_arr; +} +JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_get_1u8_1slice_1bytes (JNIEnv * env, jclass _b, jlong slice_ptr) { + LDKu8slice *slice = (LDKu8slice*)slice_ptr; + jbyteArray ret_arr = (*env)->NewByteArray(env, slice->datalen); + (*env)->SetByteArrayRegion(env, ret_arr, 0, slice->datalen, slice->data); + return ret_arr; +} +JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_bytes_1to_1u8_1vec (JNIEnv * env, jclass _b, jbyteArray bytes) { + LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "LDKCVec_u8"); + vec->datalen = (*env)->GetArrayLength(env, bytes); + vec->data = (uint8_t*)MALLOC(vec->datalen, "LDKCVec_u8Z Bytes"); + (*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 = 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 + _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"); + _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_C2Tuple_usizeTransactionZZ, datalen), "Vec<*> needs to be mapped identically"); + LDKCVec_u8Z *vec = (LDKCVec_u8Z*)ptr; + 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 + _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"); + _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_C2Tuple_usizeTransactionZZ), "Vec<*> needs to be mapped identically"); + LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "Empty LDKCVec"); + vec->data = NULL; + vec->datalen = 0; + return (long)vec; +} + +// We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed) +_Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec and [u8] need to have been mapped identically"); +_Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec and [u8] need to have been mapped identically"); +_Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec and [u8] need to have been mapped identically"); + +_Static_assert(sizeof(jlong) == sizeof(int64_t), "We assume that j-types are the same as C types"); +_Static_assert(sizeof(jbyte) == sizeof(char), "We assume that j-types are the same as C types"); +_Static_assert(sizeof(void*) <= 8, "Pointers must fit into 64 bits"); + +typedef jlongArray int64_tArray; +typedef jbyteArray int8_tArray; + +""" + + self.hu_struct_file_prefix = """package org.ldk.structs; + +import org.ldk.impl.bindings; +import org.ldk.enums.*; +import org.ldk.util.*; +import java.util.Arrays; + +@SuppressWarnings("unchecked") // We correctly assign various generic arrays +""" + self.c_fn_ty_pfx = "JNIEXPORT " + self.c_fn_name_pfx = "JNICALL Java_org_ldk_impl_bindings_" + self.c_fn_args_pfx = "JNIEnv *env, jclass clz" + self.file_ext = ".java" + self.ptr_c_ty = "int64_t" + self.ptr_native_ty = "long" + self.result_c_ty = "jclass" + self.ptr_arr = "jobjectArray" + self.get_native_arr_len_call = ("(*env)->GetArrayLength(env, ", ")") + self.get_native_arr_ptr_call = ("(*env)->GetPrimitiveArrayCritical(env, ", ", NULL)") + + def release_native_arr_ptr_call(self, arr_var, arr_ptr_var): + return "(*env)->ReleasePrimitiveArrayCritical(env, " + arr_var + ", " + arr_ptr_var + ", 0)" + def create_native_arr_call(self, arr_len, ty_info): + if ty_info.c_ty == "int8_tArray": + return "(*env)->NewByteArray(env, " + arr_len + ")" + else: + return "(*env)->New" + ty_info.java_ty.strip("[]").title() + "Array(env, " + arr_len + ")" + def set_native_arr_contents(self, arr_name, arr_len, ty_info): + if ty_info.c_ty == "int8_tArray": + return ("(*env)->SetByteArrayRegion(env, " + arr_name + ", 0, " + arr_len + ", ", ")") + else: + assert False + def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy): + if ty_info.c_ty == "int8_tArray": + if copy: + return "(*env)->GetByteArrayRegion(env, " + arr_name + ", 0, " + arr_len + ", " + dest_name + ")" + else: + return "(*env)->GetByteArrayElements (env, " + arr_name + ", NULL)" + elif not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"): + return "(*env)->Get" + ty_info.subty.java_ty.title() + "ArrayElements (env, " + arr_name + ", NULL)" + else: + return None + def get_native_arr_elem(self, arr_name, idxc, ty_info): + if self.get_native_arr_contents(arr_name, "", "", ty_info, False) is None: + return "(*env)->GetObjectArrayElement(env, " + arr_name + ", " + idxc + ")" + else: + assert False # Only called if above is None + def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info): + if ty_info.c_ty == "int8_tArray": + return "(*env)->ReleaseByteArrayElements(env, " + arr_name + ", (int8_t*)" + dest_name + ", 0);" + else: + return "(*env)->Release" + ty_info.java_ty.strip("[]").title() + "ArrayElements(env, " + arr_name + ", " + dest_name + ", 0)" + + def init_str(self, c_array_class_caches): + res = "" + for ty in c_array_class_caches: + res = res + "static jclass " + ty + "_clz = NULL;\n" + res = res + "JNIEXPORT void Java_org_ldk_impl_bindings_init_1class_1cache(JNIEnv * env, jclass clz) {\n" + for ty in c_array_class_caches: + res = res + "\t" + ty + "_clz = (*env)->FindClass(env, \"" + ty.replace("arr_of_", "[") + "\");\n" + res = res + "\tCHECK(" + ty + "_clz != NULL);\n" + res = res + "\t" + ty + "_clz = (*env)->NewGlobalRef(env, " + ty + "_clz);\n" + res = res + "}\n" + return res + + def native_c_unitary_enum_map(self, struct_name, variants): + out_java_enum = "package org.ldk.enums;\n\n" + out_java = "" + out_c = "" + out_c = out_c + "static inline " + struct_name + " " + struct_name + "_from_java(" + self.c_fn_args_pfx + ") {\n" + out_c = out_c + "\tswitch ((*env)->CallIntMethod(env, clz, ordinal_meth)) {\n" + + out_java_enum = out_java_enum + "public enum " + struct_name + " {\n" + ord_v = 0 + for var in variants: + out_java_enum = out_java_enum + "\t" + var + ",\n" + out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var) + ord_v = ord_v + 1 + out_java_enum = out_java_enum + "\t; static native void init();\n" + out_java_enum = out_java_enum + "\tstatic { init(); }\n" + out_java_enum = out_java_enum + "}" + out_java = out_java + "\tstatic { " + struct_name + ".values(); /* Force enum statics to run */ }\n" + out_c = out_c + "\t}\n" + out_c = out_c + "\tabort();\n" + out_c = out_c + "}\n" + + out_c = out_c + "static jclass " + struct_name + "_class = NULL;\n" + for var in variants: + out_c = out_c + "static jfieldID " + struct_name + "_" + var + " = NULL;\n" + out_c = out_c + self.c_fn_ty_pfx + "void JNICALL Java_org_ldk_enums_" + struct_name.replace("_", "_1") + "_init (" + self.c_fn_args_pfx + ") {\n" + out_c = out_c + "\t" + struct_name + "_class = (*env)->NewGlobalRef(env, clz);\n" + out_c = out_c + "\tCHECK(" + struct_name + "_class != NULL);\n" + for var in variants: + out_c = out_c + "\t" + struct_name + "_" + var + " = (*env)->GetStaticFieldID(env, " + struct_name + "_class, \"" + var + "\", \"Lorg/ldk/enums/" + struct_name + ";\");\n" + out_c = out_c + "\tCHECK(" + struct_name + "_" + var + " != NULL);\n" + out_c = out_c + "}\n" + out_c = out_c + "static inline jclass " + struct_name + "_to_java(JNIEnv *env, " + struct_name + " val) {\n" + out_c = out_c + "\tswitch (val) {\n" + ord_v = 0 + for var in variants: + out_c = out_c + "\t\tcase " + var + ":\n" + out_c = out_c + "\t\t\treturn (*env)->GetStaticObjectField(env, " + struct_name + "_class, " + struct_name + "_" + var + ");\n" + ord_v = ord_v + 1 + out_c = out_c + "\t\tdefault: abort();\n" + out_c = out_c + "\t}\n" + out_c = out_c + "}\n\n" + + return (out_c, out_java_enum, out_java) + + def c_unitary_enum_to_native_call(self, ty_info): + return (ty_info.rust_obj + "_to_java(env, ", ")") + def native_unitary_enum_to_c_call(self, ty_info): + return (ty_info.rust_obj + "_from_java(env, ", ")") + + def c_complex_enum_pfx(self, struct_name, variants, init_meth_jty_strs): + out_c = "" + for var in variants: + out_c = out_c + "static jclass " + struct_name + "_" + var + "_class = NULL;\n" + out_c = out_c + "static jmethodID " + struct_name + "_" + var + "_meth = NULL;\n" + out_c = out_c + self.c_fn_ty_pfx + "void JNICALL Java_org_ldk_impl_bindings_00024" + struct_name.replace("_", "_1") + "_init (" + self.c_fn_args_pfx + ") {\n" + for var_name in variants: + out_c = out_c + "\t" + struct_name + "_" + var_name + "_class =\n" + out_c = out_c + "\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"Lorg/ldk/impl/bindings$" + struct_name + "$" + var_name + ";\"));\n" + out_c = out_c + "\tCHECK(" + struct_name + "_" + var_name + "_class != NULL);\n" + out_c = out_c + "\t" + struct_name + "_" + var_name + "_meth = (*env)->GetMethodID(env, " + struct_name + "_" + var_name + "_class, \"\", \"(" + init_meth_jty_strs[var_name] + ")V\");\n" + out_c = out_c + "\tCHECK(" + struct_name + "_" + var_name + "_meth != NULL);\n" + out_c = out_c + "}\n" + return out_c + + def c_complex_enum_pass_ty(self, struct_name): + return "jobject" + + def c_constr_native_complex_enum(self, struct_name, variant, c_params): + ret = "(*env)->NewObject(env, " + struct_name + "_" + variant + "_class, " + struct_name + "_" + variant + "_meth" + for param in c_params: + ret = ret + ", " + param + return ret + ")" + + def native_c_map_trait(self, struct_name, field_vars, field_fns): + out_c = "typedef struct " + struct_name + "_JCalls {\n" + out_c = out_c + "\tatomic_size_t refcnt;\n" + out_c = out_c + "\tJavaVM *vm;\n" + out_c = out_c + "\tjweak o;\n" + for var in field_vars: + if isinstance(var, ConvInfo): + # We're a regular ol' field + pass + else: + # We're a supertrait + out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n" + for fn in field_fns: + if fn.fn_name != "free" and fn.fn_name != "clone": + out_c = out_c + "\tjmethodID " + fn.fn_name + "_meth;\n" + out_c = out_c + "} " + struct_name + "_JCalls;\n" + + for fn_line in field_fns: + if fn_line.fn_name == "free": + out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n" + out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n" + out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n" + out_c = out_c + "\t\tJNIEnv *env;\n" + out_c = out_c + "\t\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n" + out_c = out_c + "\t\t(*env)->DeleteWeakGlobalRef(env, j_calls->o);\n" + out_c = out_c + "\t\tFREE(j_calls);\n" + out_c = out_c + "\t}\n}\n" + + for fn_line in field_fns: + if fn_line.fn_name != "free" and fn_line.fn_name != "clone": + assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == "" + out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_jcall(" + if fn_line.self_is_const: + out_c = out_c + "const void* this_arg" + else: + out_c = out_c + "void* this_arg" + + for idx, arg in enumerate(fn_line.args_ty): + out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1] + + out_c = out_c + ") {\n" + out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n" + out_c = out_c + "\tJNIEnv *env;\n" + out_c = out_c + "\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n" + + for arg_info in fn_line.args_ty: + if arg_info.ret_conv is not None: + out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t') + out_c = out_c + arg_info.arg_name + out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n" + + out_c = out_c + "\tjobject obj = (*env)->NewLocalRef(env, j_calls->o);\n\tCHECK(obj != NULL);\n" + if fn_line.ret_ty_info.c_ty.endswith("Array"): + out_c = out_c + "\t" + fn_line.ret_ty_info.c_ty + " arg = (*env)->CallObjectMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth" + elif not fn_line.ret_ty_info.passed_as_ptr: + out_c = out_c + "\treturn (*env)->Call" + fn_line.ret_ty_info.java_ty.title() + "Method(env, obj, j_calls->" + fn_line.fn_name + "_meth" + else: + out_c = out_c + "\t" + fn_line.ret_ty_info.rust_obj + "* ret = (" + fn_line.ret_ty_info.rust_obj + "*)(*env)->CallLongMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth" + + for idx, arg_info in enumerate(fn_line.args_ty): + if arg_info.ret_conv is not None: + out_c = out_c + ", " + arg_info.ret_conv_name + else: + out_c = out_c + ", " + arg_info.arg_name + out_c = out_c + ");\n" + if fn_line.ret_ty_info.arg_conv is not None: + out_c = out_c + "\t" + fn_line.ret_ty_info.arg_conv.replace("\n", "\n\t") + "\n\treturn " + fn_line.ret_ty_info.arg_conv_name + ";\n" + + out_c = out_c + "}\n" + + return ("", out_c) diff --git a/typescript_strings.py b/typescript_strings.py new file mode 100644 index 00000000..70e37331 --- /dev/null +++ b/typescript_strings.py @@ -0,0 +1,228 @@ +class Consts: + def __init__(self, DEBUG): + self.c_file_pfx = """#include +#include +#include + +// These should be provided...somehow... +void *memset(void *s, int c, size_t n); +void *memcpy(void *dest, const void *src, size_t n); +int memcmp(const void *s1, const void *s2, size_t n); + +void __attribute__((noreturn)) abort(void); +void assert(scalar expression); +""" + + if not DEBUG: + self.c_file_pfx = self.c_file_pfx + """ +void *malloc(size_t size); +void free(void *ptr); + +#define MALLOC(a, _) malloc(a) +#define FREE(p) if ((long)(p) > 1024) { free(p); } +#define DO_ASSERT(a) (void)(a) +#define CHECK(a) +""" + else: + self.c_file_pfx = self.c_file_pfx + """ +// 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. + +#define BT_MAX 128 +typedef struct allocation { + struct allocation* next; + void* ptr; + const char* struct_name; +} 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->next = allocation_ll; + allocation_ll = new_alloc; +} +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; + allocation* it = allocation_ll; + while (it->ptr != ptr) { + p = it; it = it->next; + if (it == NULL) { + //XXX: fprintf(stderr, "Tried to free unknown pointer %p\\n", ptr); + 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(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 + DO_ASSERT(false); +} + +void __attribute__((destructor)) check_leaks() { + for (allocation* a = allocation_ll; a != NULL; a = a->next) { + //XXX: fprintf(stderr, "%s %p remains\\n", a->struct_name, a->ptr); + } + DO_ASSERT(allocation_ll == NULL); +} +""" + self.c_file_pfx = self.c_file_pfx + """ +// We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed) +_Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec and [u8] need to have been mapped identically"); +_Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec and [u8] need to have been mapped identically"); +_Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec and [u8] need to have been mapped identically"); + +_Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits"); + +typedef struct int64_tArray {uint32_t len;int64_t *ptr;} int64_tArray; +typedef struct uint32_tArray {uint32_t len;int32_t *ptr;} uint32_tArray; +typedef struct int8_tArray {uint32_t len;int8_t *ptr;} int8_tArray; + +typedef bool jboolean; + +""" + + self.hu_struct_file_prefix = """package org.ldk.structs; + +import org.ldk.impl.bindings; +import org.ldk.enums.*; +import org.ldk.util.*; +import java.util.Arrays; + +@SuppressWarnings("unchecked") // We correctly assign various generic arrays +""" + self.c_fn_ty_pfx = "" + self.c_fn_name_pfx = "" + self.c_fn_args_pfx = "void* ctx_TODO" + self.file_ext = "" + self.ptr_c_ty = "uint32_t" + self.ptr_native_ty = "uint32_t" + self.result_c_ty = "uint32_t" + self.ptr_arr = "uint32_tArray" + self.get_native_arr_len_call = ("", ".len") + self.get_native_arr_ptr_call = ("", ".ptr") + + def release_native_arr_ptr_call(self, arr_var, arr_ptr_var): + return None + def create_native_arr_call(self, arr_len, ty_info): + if ty_info.c_ty == "int8_tArray": + return "{ .len = " + arr_len + ", .ptr = MALLOC(" + arr_len + ", \"Native " + ty_info.c_ty + " Bytes\") }" + elif ty_info.c_ty == "int64_tArray": + return "{ .len = " + arr_len + ", .ptr = MALLOC(" + arr_len + " * sizeof(int64_t), \"Native " + ty_info.c_ty + " Bytes\") }" + elif ty_info.c_ty == "uint32_tArray": + return "{ .len = " + arr_len + ", .ptr = MALLOC(" + arr_len + " * sizeof(int32_t), \"Native " + ty_info.c_ty + " Bytes\") }" + else: + print("Need to create arr!", ty_info.c_ty) + return ty_info.c_ty + def set_native_arr_contents(self, arr_name, arr_len, ty_info): + if ty_info.c_ty == "int8_tArray": + return ("memcpy(" + arr_name + ".ptr, ", ", " + arr_len + ")") + else: + assert False + def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy): + if ty_info.c_ty == "int8_tArray": + if copy: + return "memcpy(" + dest_name + ", " + arr_name + ".ptr, " + arr_len + ")" + else: + return arr_name + ".ptr" + else: + return "(" + ty_info.subty.c_ty + "*) " + arr_name + ".ptr" + def get_native_arr_elem(self, arr_name, idxc, ty_info): + assert False # Only called if above is None + def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info): + if ty_info.c_ty == "int8_tArray": + return None + else: + return None + + def init_str(self, c_array_class_caches): + return "" + + def native_c_unitary_enum_map(self, struct_name, variants): + out_c = "static inline " + struct_name + " " + struct_name + "_from_js(int32_t ord) {\n" + out_c = out_c + "\tswitch (ord) {\n" + ord_v = 0 + for var in variants: + out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var) + ord_v = ord_v + 1 + out_c = out_c + "\t}\n" + out_c = out_c + "\tabort();\n" + out_c = out_c + "}\n" + + out_c = out_c + "static inline int32_t " + struct_name + "_to_js(" + struct_name + " val) {\n" + out_c = out_c + "\tswitch (val) {\n" + ord_v = 0 + for var in variants: + out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v + ord_v = ord_v + 1 + out_c = out_c + "\t\tdefault: abort();\n" + out_c = out_c + "\t}\n" + out_c = out_c + "}\n" + return (out_c, "", "") + + def c_unitary_enum_to_native_call(self, ty_info): + return (ty_info.rust_obj + "_to_js(", ")") + def native_unitary_enum_to_c_call(self, ty_info): + return (ty_info.rust_obj + "_from_js(", ")") + + def c_complex_enum_pfx(self, struct_name, variants, init_meth_jty_strs): + return "" + + def c_complex_enum_pass_ty(self, struct_name): + return "uint32_t" + + def c_constr_native_complex_enum(self, struct_name, variant, c_params): + ret = "0 /* " + struct_name + " - " + variant + " */" + for param in c_params: + ret = ret + "; (void) " + param + return ret + + def native_c_map_trait(self, struct_name, field_var_convs, field_fn_lines): + return ("", "")