with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.argv[3], "w") as out_c:
opaque_structs = set()
+ trait_structs = set()
var_is_arr_regex = re.compile("\(\*([A-za-z_]*)\)\[([0-9]*)\]")
var_ty_regex = re.compile("([A-za-z_0-9]*)(.*)")
var_is_arr = var_is_arr_regex.match(fn_arg)
if var_is_arr is not None or ret_arr_len is not None:
assert(not take_by_ptr)
- #assert(not passed_as_ptr)
+ assert(not is_ptr)
java_ty = java_ty + "[]"
c_ty = c_ty + "Array"
if var_is_arr is not None:
- return TypeInfo(rust_obj=None, java_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, passed_as_ptr=is_ptr,
- is_ptr=False, var_name=var_is_arr.group(1), arr_len=var_is_arr.group(2))
+ return TypeInfo(rust_obj=None, java_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty,
+ passed_as_ptr=False, is_ptr=False, var_name=var_is_arr.group(1), arr_len=var_is_arr.group(2))
return TypeInfo(rust_obj=rust_obj, java_ty=java_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=None)
if ty_info.rust_obj is not None:
assert(ty_info.passed_as_ptr)
if not ty_info.is_ptr:
+ if ty_info.rust_obj in trait_structs:
+ base_conv = ty_info.rust_obj + " *" + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";"
+ if not is_free:
+ base_conv = base_conv + "\n" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv->this_arg);"
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv,
+ arg_conv_name = "*" + ty_info.var_name + "_conv",
+ ret_conv = None, ret_conv_name = None)
base_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)" + ty_info.var_name + ";\nfree((void*)" + ty_info.var_name + ");";
if ty_info.rust_obj in opaque_structs:
return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
arg_conv = base_conv + "\n" + ty_info.var_name + "_conv._underlying_ref = false;",
arg_conv_name = ty_info.var_name + "_conv",
ret_conv = None, ret_conv_name = None)
+
return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv",
ret_conv = None, ret_conv_name = None)
elif ty_info.is_ptr:
return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
arg_conv = None, arg_conv_name = ty_info.var_name, ret_conv = None, ret_conv_name = None)
+ elif ty_info.java_ty == "String":
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = None, arg_conv_name = None,
+ ret_conv = ("jstring " + ty_info.var_name + "_conv = (*_env)->NewStringUTF(_env, ", ");"), ret_conv_name = ty_info.var_name + "_conv")
else:
return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
arg_conv = None, arg_conv_name = ty_info.var_name, ret_conv = None, ret_conv_name = None)
out_c.write("#include \"org_ldk_impl_bindings.h\"\n")
out_c.write("#include <rust_types.h>\n")
out_c.write("#include <lightning.h>\n")
- out_c.write("#include <assert.h>\n\n")
- out_c.write("#include <string.h>\n\n")
+ out_c.write("#include <assert.h>\n")
+ out_c.write("#include <string.h>\n")
+ out_c.write("#include <stdatomic.h>\n\n")
+
+ # XXX: Temporarily write out a manual SecretKey_new() for testing, we should auto-gen this kind of thing
+ out_java.write("\tpublic static native long LDKSecretKey_new();\n\n") # TODO: rm me
+ out_c.write("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_LDKSecretKey_1new(JNIEnv * _env, jclass _b) {\n") # TODO: rm me
+ out_c.write("\tLDKSecretKey* key = (LDKSecretKey*)malloc(sizeof(LDKSecretKey));\n") # TODO: rm me
+ out_c.write("\treturn (long)key;\n") # TODO: rm me
+ out_c.write("}\n") # TODO: rm me
in_block_comment = False
in_block_enum = False
assert(line_indicates_trait_regex.match(" uintptr_t (*send_data)(void *this_arg, LDKu8slice data, bool resume_read);"))
assert(line_indicates_trait_regex.match(" LDKCVec_MessageSendEventZ (*get_and_clear_pending_msg_events)(const void *this_arg);"))
assert(line_indicates_trait_regex.match(" void *(*clone)(const void *this_arg);"))
+ line_field_var_regex = re.compile("^ ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$")
+ assert(line_field_var_regex.match(" LDKMessageSendEventsProvider MessageSendEventsProvider;"))
struct_name_regex = re.compile("^typedef struct (MUST_USE_STRUCT )?(LDK[A-Za-z_0-9]*) {$")
assert(struct_name_regex.match("typedef struct LDKCVecTempl_u8 {"))
struct_lines = cur_block_struct.split("\n")
is_opaque = False
trait_fn_lines = []
+ field_var_lines = []
for idx, struct_line in enumerate(struct_lines):
if struct_line.strip().startswith("/*"):
trait_fn_match = line_indicates_trait_regex.match(struct_line)
if trait_fn_match is not None:
trait_fn_lines.append(trait_fn_match)
+ field_var_match = line_field_var_regex.match(struct_line)
+ if field_var_match is not None:
+ field_var_lines.append(field_var_match)
field_lines.append(struct_line)
assert(struct_name is not None)
if is_opaque:
opaque_structs.add(struct_name)
if len(trait_fn_lines) > 0:
+ trait_structs.add(struct_name)
out_c.write("typedef struct " + struct_name + "_JCalls {\n")
+ out_c.write("\tatomic_size_t refcnt;\n")
out_c.write("\tJNIEnv *env;\n")
out_c.write("\tjobject o;\n")
+ for var_line in field_var_lines:
+ if var_line.group(1) in trait_structs:
+ out_c.write("\t" + var_line.group(1) + "_JCalls* " + var_line.group(2) + ";\n")
for fn_line in trait_fn_lines:
if fn_line.group(2) != "free" and fn_line.group(2) != "clone":
out_c.write("\tjmethodID " + fn_line.group(2) + "_meth;\n")
elif fn_line.group(2) == "free":
out_c.write("void " + struct_name + "_JCalls_free(void* this_arg) {\n")
out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n")
- out_c.write("\t(*j_calls->env)->DeleteGlobalRef(j_calls->env, j_calls->o);\n")
- out_c.write("\tfree(j_calls);\n")
- out_c.write("}\n")
- elif fn_line.group(2) == "clone":
- out_c.write("void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n")
- out_c.write("\t" + struct_name + "_JCalls *ret = malloc(sizeof(" + struct_name + "_JCalls));\n")
- out_c.write("\tmemcpy(ret, this_arg, sizeof(" + struct_name + "_JCalls));\n")
- out_c.write("\treturn ret;\n")
- out_c.write("}\n")
+ out_c.write("\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n")
+ out_c.write("\t\t(*j_calls->env)->DeleteGlobalRef(j_calls->env, j_calls->o);\n")
+ out_c.write("\t\tfree(j_calls);\n")
+ out_c.write("\t}\n}\n")
+
+ # Write out a clone function whether we need one or not, as we use them in moving to rust
+ out_c.write("void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n")
+ out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n")
+ out_c.write("\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n")
+ for var_line in field_var_lines:
+ if var_line.group(1) in trait_structs:
+ out_c.write("\tatomic_fetch_add_explicit(&j_calls->" + var_line.group(2) + "->refcnt, 1, memory_order_release);\n")
+ out_c.write("\treturn (void*) this_arg;\n")
+ out_c.write("}\n")
+
out_java.write("\t}\n")
- out_java.write("\tpublic static native long " + struct_name + "_new(" + struct_name + " impl);\n")
- out_c.write("JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new (JNIEnv * env, jclass _a, jobject o) {\n")
+ out_java.write("\tpublic static native long " + struct_name + "_new(" + struct_name + " impl")
+ out_c.write("JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new (JNIEnv * env, jclass _a, jobject o")
+ for var_line in field_var_lines:
+ if var_line.group(1) in trait_structs:
+ out_java.write(", " + var_line.group(1) + " " + var_line.group(2))
+ out_c.write(", jobject " + var_line.group(2))
+ out_java.write(");\n")
+ out_c.write(") {\n")
+
out_c.write("\tjclass c = (*env)->GetObjectClass(env, o);\n")
out_c.write("\tassert(c != NULL);\n")
out_c.write("\t" + struct_name + "_JCalls *calls = malloc(sizeof(" + struct_name + "_JCalls));\n")
+ out_c.write("\tatomic_init(&calls->refcnt, 1);\n")
out_c.write("\tcalls->env = env;\n")
out_c.write("\tcalls->o = (*env)->NewGlobalRef(env, o);\n")
for (fn_line, java_meth_descr) in zip(trait_fn_lines, java_meths):
out_c.write("\tret->free = " + struct_name + "_JCalls_free;\n")
else:
out_c.write("\tret->clone = " + struct_name + "_JCalls_clone;\n")
+ for var_line in field_var_lines:
+ if var_line.group(1) in trait_structs:
+ out_c.write("\tret->" + var_line.group(2) + " = *(" + var_line.group(1) + "*)Java_org_ldk_impl_bindings_" + var_line.group(1) + "_1new(env, _a, " + var_line.group(2) + ");\n")
+ out_c.write("\tcalls->" + var_line.group(2) + " = ret->" + var_line.group(2) + ".this_arg;\n")
out_c.write("\treturn (long)ret;\n")
out_c.write("}\n\n")
projects / ldk-java / blobdiff