mobile/bind/testdata/basictypes.java.c.golden

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mobile/bind: replace seq serialization with direct calls The seq serialization machinery is a historic artifact from when Go mobile code had to run in a separate process. Now that Go code is running in-process, replace the explicit serialization with direct calls and pass arguments on the stack. The benefits are a much smaller bind runtime, much less garbage (and, in Java, fewer objects with finalizers), less argument copying, and faster cross-language calls. The cost is a more complex generator, because some of the work from the bind runtime is moved to generated code. Generated code now handles conversion between Go and Java/ObjC types, multiple return values and memory management of byte slice and string arguments. To overcome the lack of calling C code between Go packages, all bound packages now end up in the same (fake) package, "gomobile_bind", instead of separate packages (go_<pkgname>). To avoid name clashes, the package name is added as a prefix to generated functions and types. Also, don't copy byte arrays passed to Go, saving call time and allowing read([]byte)-style interfaces to foreign callers (#12113). Finally, add support for nil interfaces and struct pointers to objc. This is a large CL, but most of the changes stem from changing testdata. The full benchcmp output on the CL/20095 benchmarks on my Nexus 5 is reproduced below. Note that the savings for the JavaSlice* benchmarks are skewed because byte slices are no longer copied before passing them to Go. benchmark old ns/op new ns/op delta BenchmarkJavaEmpty 26.0 19.0 -26.92% BenchmarkJavaEmptyDirect 23.0 22.0 -4.35% BenchmarkJavaNoargs 7685 2339 -69.56% BenchmarkJavaNoargsDirect 17405 8041 -53.80% BenchmarkJavaOnearg 26887 2366 -91.20% BenchmarkJavaOneargDirect 34266 7910 -76.92% BenchmarkJavaOneret 38325 2245 -94.14% BenchmarkJavaOneretDirect 46265 7708 -83.34% BenchmarkJavaManyargs 41720 2535 -93.92% BenchmarkJavaManyargsDirect 51026 8373 -83.59% BenchmarkJavaRefjava 38139 21260 -44.26% BenchmarkJavaRefjavaDirect 42706 28150 -34.08% BenchmarkJavaRefgo 34403 6843 -80.11% BenchmarkJavaRefgoDirect 40193 16582 -58.74% BenchmarkJavaStringShort 32366 9323 -71.20% BenchmarkJavaStringShortDirect 41973 19118 -54.45% BenchmarkJavaStringLong 127879 94420 -26.16% BenchmarkJavaStringLongDirect 133776 114760 -14.21% BenchmarkJavaStringShortUnicode 32562 9221 -71.68% BenchmarkJavaStringShortUnicodeDirect 41464 19094 -53.95% BenchmarkJavaStringLongUnicode 131015 89401 -31.76% BenchmarkJavaStringLongUnicodeDirect 134130 90786 -32.31% BenchmarkJavaSliceShort 42462 7538 -82.25% BenchmarkJavaSliceShortDirect 52940 17017 -67.86% BenchmarkJavaSliceLong 138391 8466 -93.88% BenchmarkJavaSliceLongDirect 205804 15666 -92.39% BenchmarkGoEmpty 3.00 3.00 +0.00% BenchmarkGoEmptyDirect 3.00 3.00 +0.00% BenchmarkGoNoarg 40342 13716 -66.00% BenchmarkGoNoargDirect 46691 13569 -70.94% BenchmarkGoOnearg 43529 13757 -68.40% BenchmarkGoOneargDirect 44867 14078 -68.62% BenchmarkGoOneret 45456 13559 -70.17% BenchmarkGoOneretDirect 44694 13442 -69.92% BenchmarkGoRefjava 55111 28071 -49.06% BenchmarkGoRefjavaDirect 60883 26872 -55.86% BenchmarkGoRefgo 57038 29223 -48.77% BenchmarkGoRefgoDirect 56153 27812 -50.47% BenchmarkGoManyargs 67967 17398 -74.40% BenchmarkGoManyargsDirect 60617 16998 -71.96% BenchmarkGoStringShort 57538 22600 -60.72% BenchmarkGoStringShortDirect 52627 22704 -56.86% BenchmarkGoStringLong 128485 52530 -59.12% BenchmarkGoStringLongDirect 138377 52079 -62.36% BenchmarkGoStringShortUnicode 57062 22994 -59.70% BenchmarkGoStringShortUnicodeDirect 62563 22938 -63.34% BenchmarkGoStringLongUnicode 139913 55553 -60.29% BenchmarkGoStringLongUnicodeDirect 150863 57791 -61.69% BenchmarkGoSliceShort 59279 20215 -65.90% BenchmarkGoSliceShortDirect 60160 21136 -64.87% BenchmarkGoSliceLong 411225 301870 -26.59% BenchmarkGoSliceLongDirect 399029 298915 -25.09% Fixes golang/go#12619 Fixes golang/go#12113 Fixes golang/go#13033 Change-Id: I2b45e9e98a1248e3c23a5137f775f7364908bec7 Reviewed-on: https://go-review.googlesource.com/19821 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
2016-02-12 17:50:33 +00:00
// JNI functions for the Go <=> Java bridge.
// gobind -lang=java basictypes
//
// File is generated by gobind. Do not edit.
#include <android/log.h>
#include <stdint.h>
#include "seq.h"
#include "basictypes.h"
#include "_cgo_export.h"
JNIEXPORT void JNICALL
Java_go_basictypes_Basictypes_init(JNIEnv *env, jclass _unused) {
jclass clazz;
}
JNIEXPORT jboolean JNICALL
Java_go_basictypes_Basictypes_Bool(JNIEnv* env, jclass clazz, jboolean p0) {
char _p0 = (char)p0;
char r0 = proxybasictypes__Bool(_p0);
jboolean _r0 = r0 ? JNI_TRUE : JNI_FALSE;
return _r0;
}
JNIEXPORT jbyteArray JNICALL
Java_go_basictypes_Basictypes_ByteArrays(JNIEnv* env, jclass clazz, jbyteArray x) {
nbyteslice _x = go_seq_from_java_bytearray(env, x, 0);
nbyteslice r0 = proxybasictypes__ByteArrays(_x);
if (_x.ptr != NULL) {
(*env)->ReleaseByteArrayElements(env, x, _x.ptr, 0);
}
jbyteArray _r0 = go_seq_to_java_bytearray(env, r0, 1);
return _r0;
}
JNIEXPORT void JNICALL
Java_go_basictypes_Basictypes_Error(JNIEnv* env, jclass clazz) {
nstring r0 = proxybasictypes__Error();
jstring _r0 = go_seq_to_java_string(env, r0);
go_seq_maybe_throw_exception(env, _r0);
}
JNIEXPORT jlong JNICALL
Java_go_basictypes_Basictypes_ErrorPair(JNIEnv* env, jclass clazz) {
struct proxybasictypes__ErrorPair_return res = proxybasictypes__ErrorPair();
jlong _r0 = (jlong)res.r0;
jstring _r1 = go_seq_to_java_string(env, res.r1);
go_seq_maybe_throw_exception(env, _r1);
return _r0;
}
JNIEXPORT void JNICALL
Java_go_basictypes_Basictypes_Ints(JNIEnv* env, jclass clazz, jbyte x, jshort y, jint z, jlong t, jlong u) {
int8_t _x = (int8_t)x;
int16_t _y = (int16_t)y;
int32_t _z = (int32_t)z;
int64_t _t = (int64_t)t;
nint _u = (nint)u;
proxybasictypes__Ints(_x, _y, _z, _t, _u);
}