from bindingstypes import *
class Consts:
- def __init__(self, DEBUG):
-
+ def __init__(self, DEBUG: bool, **kwargs):
+ self.c_array_class_caches = set()
self.c_type_map = dict(
- byte = ['byte'],
+ uint8_t = ['byte'],
+ uint16_t = ['short'],
+ uint32_t = ['int'],
+ uint64_t = ['long'],
+ )
+
+ self.to_hu_conv_templates = dict(
+ ptr = '{human_type} {var_name}_hu_conv = new {human_type}(null, {var_name});',
+ default = '{human_type} {var_name}_hu_conv = new {human_type}(null, {var_name});'
)
+ self.bindings_header = """package org.ldk.impl;
+import org.ldk.enums.*;
+
+public class bindings {
+ public static class VecOrSliceDef {
+ public long dataptr;
+ public long datalen;
+ public long stride;
+ public VecOrSliceDef(long dataptr, long datalen, long stride) {
+ this.dataptr = dataptr; this.datalen = datalen; this.stride = stride;
+ }
+ }
+ static {
+ System.loadLibrary(\"lightningjni\");
+ init(java.lang.Enum.class, VecOrSliceDef.class);
+ init_class_cache();
+ }
+ static native void init(java.lang.Class c, java.lang.Class slicedef);
+ static native void init_class_cache();
+
+ public static native boolean deref_bool(long ptr);
+ public static native long deref_long(long ptr);
+ public static native void free_heap_ptr(long ptr);
+ public static native byte[] read_bytes(long ptr, long len);
+ public static native byte[] get_u8_slice_bytes(long slice_ptr);
+ public static native long bytes_to_u8_vec(byte[] bytes);
+ public static native long new_txpointer_copy_data(byte[] txdata);
+ public static native void txpointer_free(long ptr);
+ public static native byte[] txpointer_get_buffer(long ptr);
+ public static native long vec_slice_len(long vec);
+ public static native long new_empty_slice_vec();
+
+"""
+
self.common_base = """package org.ldk.structs;
import java.util.LinkedList;
class CommonBase {
self.ptr_c_ty = "int64_t"
self.ptr_native_ty = "long"
self.result_c_ty = "jclass"
+ self.owned_str_to_c_call = ("(*env)->NewStringUTF(env, ", ")")
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 release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
+ if ty_info.subty is None or not ty_info.subty.c_ty.endswith("Array"):
+ return "(*env)->ReleasePrimitiveArrayCritical(env, " + arr_var + ", " + arr_ptr_var + ", 0)"
+ return None
def create_native_arr_call(self, arr_len, ty_info):
if ty_info.c_ty == "int8_tArray":
return "(*env)->NewByteArray(env, " + arr_len + ")"
+ elif ty_info.subty.c_ty.endswith("Array"):
+ clz_var = ty_info.java_fn_ty_arg[1:].replace("[", "arr_of_")
+ self.c_array_class_caches.add(clz_var)
+ return "(*env)->NewObjectArray(env, " + arr_len + ", " + clz_var + "_clz, NULL);\n"
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):
return "(*env)->GetObjectArrayElement(env, " + arr_name + ", " + idxc + ")"
else:
assert False # Only called if above is None
+ def get_native_arr_ptr_call(self, ty_info):
+ if ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array"):
+ return None
+ return ("(*env)->GetPrimitiveArrayCritical(env, ", ", NULL)")
+ def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
+ if ty_info.subty is None or not ty_info.subty.c_ty.endswith("Array"):
+ return None
+ return "(*env)->SetObjectArrayElement(env, " + arr_name + ", " + idxc + ", " + entry_access + ")"
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):
+ def init_str(self):
res = ""
- for ty in c_array_class_caches:
+ for ty in self.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:
+ for ty in self.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"
else:
out_java = out_java + ", " + var[0] + " " + var[1]
out_java = out_java + ");\n"
- out_java = out_java + "\tpublic static native " + struct_name + " " + struct_name + "_get_obj_from_jcalls(long val);\n"
# Now that we've written out our java code (and created java_meths), generate C
out_c = "typedef struct " + struct_name + "_JCalls {\n"
out_c = out_c + "\treturn (long)res_ptr;\n"
out_c = out_c + "}\n"
- out_c = out_c + self.c_fn_ty_pfx + "jobject " + self.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1obj_1from_1jcalls (" + self.c_fn_args_pfx + ", " + self.ptr_c_ty + " val) {\n"
- out_c = out_c + "\tjobject ret = (*env)->NewLocalRef(env, ((" + struct_name + "_JCalls*)val)->o);\n"
- out_c = out_c + "\tCHECK(ret != NULL);\n"
- out_c = out_c + "\treturn ret;\n"
- out_c = out_c + "}\n"
-
return (out_java, out_java_trait, out_c)
+ def trait_struct_inc_refcnt(self, ty_info):
+ base_conv = "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
+ base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
+ base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv.this_arg);\n}"
+ return base_conv
+
def map_complex_enum(self, struct_name, variant_list, camel_to_snake):
java_hu_type = struct_name.replace("LDK", "")
out_java_enum = ""
out_c += ("\t}\n}\n")
out_java_enum += ("}\n")
return (out_java, out_java_enum, out_c)
+
+ def map_opaque_struct(self, struct_name):
+ out_opaque_struct_human = ""
+ out_opaque_struct_human += self.hu_struct_file_prefix
+ out_opaque_struct_human += ("public class " + struct_name.replace("LDK","") + " extends CommonBase")
+ if struct_name.startswith("LDKLocked"):
+ out_opaque_struct_human += (" implements AutoCloseable")
+ out_opaque_struct_human += (" {\n")
+ out_opaque_struct_human += ("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); }\n")
+ if struct_name.startswith("LDKLocked"):
+ out_opaque_struct_human += ("\t@Override public void close() {\n")
+ else:
+ out_opaque_struct_human += ("\t@Override @SuppressWarnings(\"deprecation\")\n")
+ out_opaque_struct_human += ("\tprotected void finalize() throws Throwable {\n")
+ out_opaque_struct_human += ("\t\tsuper.finalize();\n")
+ out_opaque_struct_human += ("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); }\n")
+ out_opaque_struct_human += ("\t}\n\n")
+ return out_opaque_struct_human
projects / ldk-java / blobdiff