4600df55ca
The gobind and gomobile bind tools have historically overlapped: gobind outputs generated bindings, and gomobile bind will generate bindings before building them. However, the gobind bindings were never used for building and thus allowed to not be complete. To simplify version control, debugging, instrumentation and build system flexibility, this CL upgrades the gobind tool to be the canonical binding generator and change gomobile bind to use gobind instead of its own generator code. This greatly simplifies gomobile bind, but also paves the way to skip gomobile bind entirely. For example: $ gobind -outdir=$GOPATH golang.org/x/mobile/example/bind/hello $ GOOS=android GOARCH=arm64 CC=<ndk-toolchain>/bin/clang go build -buildmode=c-shared -o libgobind.so gobind $ ls libgobind.* libgobind.h libgobind.so The same applies to iOS, although the go build command line is more involved. By skipping gomobile it is possible to freely customize the Android or iOS SDK level or any other flags not supported by gomobile bind. By checking in the generated source code, the cost of supporting gomobile in a custom build system is also decreased. Change-Id: I59c14a77d625ac1377c23b3213672e0d83a48c85 Reviewed-on: https://go-review.googlesource.com/99316 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
68 lines
2.8 KiB
C
68 lines
2.8 KiB
C
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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#ifndef __GO_SEQ_ANDROID_HDR__
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#define __GO_SEQ_ANDROID_HDR__
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#include <stdint.h>
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#include <android/log.h>
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// For abort()
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#include <stdlib.h>
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#include <jni.h>
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#define LOG_INFO(...) __android_log_print(ANDROID_LOG_INFO, "go/Seq", __VA_ARGS__)
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#define LOG_FATAL(...) \
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{ \
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__android_log_print(ANDROID_LOG_FATAL, "go/Seq", __VA_ARGS__); \
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abort(); \
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}
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// Platform specific types
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typedef struct nstring {
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// UTF16 or UTF8 Encoded string. When converting from Java string to Go
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// string, UTF16. When converting from Go to Java, UTF8.
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void *chars;
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// length in bytes, regardless of encoding
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jsize len;
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} nstring;
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typedef struct nbyteslice {
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void *ptr;
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jsize len;
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} nbyteslice;
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typedef jlong nint;
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extern void go_seq_dec_ref(int32_t ref);
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extern void go_seq_inc_ref(int32_t ref);
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// go_seq_unwrap takes a reference number to a Java wrapper and returns
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// a reference number to its wrapped Go object.
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extern int32_t go_seq_unwrap(jint refnum);
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extern int32_t go_seq_to_refnum(JNIEnv *env, jobject o);
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extern int32_t go_seq_to_refnum_go(JNIEnv *env, jobject o);
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extern jobject go_seq_from_refnum(JNIEnv *env, int32_t refnum, jclass proxy_class, jmethodID proxy_cons);
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extern void go_seq_maybe_throw_exception(JNIEnv *env, jobject msg);
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// go_seq_get_exception returns any pending exception and clears the exception status.
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extern jobject go_seq_get_exception(JNIEnv *env);
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extern jbyteArray go_seq_to_java_bytearray(JNIEnv *env, nbyteslice s, int copy);
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extern nbyteslice go_seq_from_java_bytearray(JNIEnv *env, jbyteArray s, int copy);
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extern void go_seq_release_byte_array(JNIEnv *env, jbyteArray arr, jbyte* ptr);
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extern jstring go_seq_to_java_string(JNIEnv *env, nstring str);
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extern nstring go_seq_from_java_string(JNIEnv *env, jstring s);
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// push_local_frame retrieves or creates the JNIEnv* for the current thread
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// and pushes a JNI reference frame. Must be matched with call to pop_local_frame.
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extern JNIEnv *go_seq_push_local_frame(jint cap);
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// Pop the current local frame, releasing all JNI local references in it
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extern void go_seq_pop_local_frame(JNIEnv *env);
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// Return a global reference to the given class. Return NULL and clear exception if not found.
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extern jclass go_seq_find_class(const char *name);
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extern jmethodID go_seq_get_static_method_id(jclass clazz, const char *name, const char *sig);
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extern jmethodID go_seq_get_method_id(jclass clazz, const char *name, const char *sig);
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extern int go_seq_isinstanceof(jint refnum, jclass clazz);
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#endif // __GO_SEQ_ANDROID_HDR__
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