A release build of the Java bindings library for Linux is available in git. Thus, the bindings should work as long as the `LD_LIBRARY_PATH` includes the top-level directory of this repository.
-To build the bindings locally, the bindings require some additional work which is still making its way upstream, for now it should be built against the [rust-lightning 2020-10-java-bindings-base branch on git.bitcoin.ninja](https://git.bitcoin.ninja/?p=rust-lightning;a=shortlog;h=refs/heads/2020-10-java-bindings-base). Check that branch out locally and run the `genbindings.sh` script in it to build the required binaries. Thereafter, in this repo, run the `genbindings.sh` script with the first argument pointing to the rust-lightning directory, and the second the relevant JNI CFLAGS and the third argument set to `true` or `false` to indicate whether building in debug mode. JNI CFLAGS on debian are likely "-I/usr/lib/jvm/java-11-openjdk-amd64/include/ -I/usr/lib/jvm/java-11-openjdk-amd64/include/linux/". When running a program linking against the library in debug mode, LD_PRELOAD should likely include the relevant `libclang_rt.asan-platform.so` path.
+To build the bindings locally, the bindings require some additional work which is still making its way upstream, for now it should be built against the [rust-lightning 2020-10-java-bindings-base branch on git.bitcoin.ninja](https://git.bitcoin.ninja/?p=rust-lightning;a=shortlog;h=refs/heads/2020-10-java-bindings-base). Check that branch out locally and run the `genbindings.sh` script in it to build the required binaries. Thereafter, in this repo, run the `genbindings.sh` script with the first argument pointing to the rust-lightning directory, the second the relevant JNI CFLAGS, the third argument set to `true` or `false` to indicate whether building in debug mode, and the third set to true or false to indicate if the bindings should be built with workarounds required for Android. JNI CFLAGS on debian are likely "-I/usr/lib/jvm/java-11-openjdk-amd64/include/ -I/usr/lib/jvm/java-11-openjdk-amd64/include/linux/". When running a program linking against the library in debug mode, LD_PRELOAD should likely include the relevant `libclang_rt.asan-platform.so` path.
Status
======
sys.exit(1)
target = None
-if sys.argv[6] == "java":
+if sys.argv[6] == "java" or sys.argv[6] == "android":
+ import java_strings
from java_strings import Consts
+ target = java_strings.Target.JAVA
+ if sys.argv[6] == "android":
+ target = java_strings.Target.ANDROID
elif sys.argv[6] == "typescript":
import typescript_strings
from typescript_strings import Consts
#!/bin/bash
usage() {
- echo "USAGE: path/to/rust-lightning \"JNI_CFLAGS\" debug"
+ echo "USAGE: path/to/rust-lightning \"JNI_CFLAGS\" debug android"
echo "For JNI_CFLAGS you probably want -I/usr/lib/jvm/java-11-openjdk-amd64/include/ -I/usr/lib/jvm/java-11-openjdk-amd64/include/linux/"
echo "debug should either be true or false"
+ echo "android should either be true or false"
exit 1
}
[ "$1" = "" -o "$2" = "" ] && usage
[ "$3" != "true" -a "$3" != "false" ] && usage
+[ "$4" != "true" -a "$4" != "false" ] && usage
-COMMON_COMPILE="clang -std=c11 -Wall -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers -Wno-unused-function -Wno-nullability-completeness -Wno-pointer-sign"
+if [ "$CC" != "" ]; then
+ COMMON_COMPILE="$CC -std=c11 -Wall -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers -Wno-unused-function -Wno-nullability-completeness -Wno-pointer-sign"
+else
+ COMMON_COMPILE="clang -std=c11 -Wall -Wextra -Wno-unused-parameter -Wno-ignored-qualifiers -Wno-unused-function -Wno-nullability-completeness -Wno-pointer-sign"
+fi
set -e
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 java
+if [ "$4" = "true" ]; then
+ ./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 android $4
+else
+ ./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 $4
+fi
javac -h src/main/jni src/main/java/org/ldk/enums/*.java src/main/java/org/ldk/impl/bindings.java
rm src/main/java/org/ldk/enums/*.class src/main/java/org/ldk/impl/bindings*.class
from bindingstypes import *
+from enum import Enum
+
+class Target(Enum):
+ JAVA = 1,
+ ANDROID = 2
class Consts:
- def __init__(self, DEBUG: bool, **kwargs):
+ def __init__(self, DEBUG: bool, target: Target, **kwargs):
+ self.target = target
self.c_array_class_caches = set()
self.c_type_map = dict(
uint8_t = ['byte'],
out_c = out_c + self.c_fn_ty_pfx + "void JNICALL Java_org_ldk_impl_bindings_00024" + struct_name.replace("_", "_1") + "_init (" + self.c_fn_args_pfx + ") {\n"
for var_name in variants:
out_c = out_c + "\t" + struct_name + "_" + var_name + "_class =\n"
- out_c = out_c + "\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"Lorg/ldk/impl/bindings$" + struct_name + "$" + var_name + ";\"));\n"
+ if self.target == Target.ANDROID:
+ out_c = out_c + "\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"org/ldk/impl/bindings$" + struct_name + "$" + var_name + "\"));\n"
+ else:
+ out_c = out_c + "\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"Lorg/ldk/impl/bindings$" + 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>\", \"(" + init_meth_jty_strs[var_name] + ")V\");\n"
out_c = out_c + "\tCHECK(" + struct_name + "_" + var_name + "_meth != NULL);\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\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_6) == 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"
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"
+ out_c = out_c + "\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_6) == JNI_OK);\n"
for arg_info in fn_line.args_ty:
if arg_info.ret_conv is not None:
projects / ldk-java / commitdiff