Remove third_party/golang.org/x/mobile as it is no longer used with Go 1.5.

third_party/go/src/golang.org/x/mobile/app/android.c

-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build android
-
-#include <android/asset_manager_jni.h>
-#include <android/log.h>
-#include <dlfcn.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <jni.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include "_cgo_export.h"
-
-#define LOG_INFO(...) __android_log_print(ANDROID_LOG_INFO, "Go", __VA_ARGS__)
-#define LOG_FATAL(...) __android_log_print(ANDROID_LOG_FATAL, "Go", __VA_ARGS__)
-
-// Defined in the Go runtime.
-static int (*_rt0_arm_linux1)(int argc, char** argv);
-
-jint JNI_OnLoad(JavaVM* vm, void* reserved) {
-        current_vm = vm;
-        current_ctx = NULL;
-        current_native_activity = NULL;
-
-        JNIEnv* env;
-        if ((*vm)->GetEnv(vm, (void**)&env, JNI_VERSION_1_6) != JNI_OK) {
-                return -1;
-        }
-
-        pthread_mutex_lock(&go_started_mu);
-        go_started = 0;
-        pthread_mutex_unlock(&go_started_mu);
-        pthread_cond_init(&go_started_cond, NULL);
-
-        return JNI_VERSION_1_6;
-}
-
-static jclass find_class(JNIEnv *env, const char *class_name) {
-        jclass clazz = (*env)->FindClass(env, class_name);
-        if (clazz == NULL) {
-                LOG_FATAL("cannot find %s", class_name);
-                return NULL;
-        }
-        return clazz;
-}
-
-static jmethodID find_method(JNIEnv *env, jclass clazz, const char *name, const char *sig) {
-        jmethodID m = (*env)->GetMethodID(env, clazz, name, sig);
-        if (m == 0) {
-                LOG_FATAL("cannot find method %s %s", name, sig);
-                return 0;
-        }
-        return m;
-}
-
-static void init_from_context() {
-        if (current_ctx == NULL) {
-                return;
-        }
-
-        int attached = 0;
-        JNIEnv* env;
-        switch ((*current_vm)->GetEnv(current_vm, (void**)&env, JNI_VERSION_1_6)) {
-        case JNI_OK:
-                break;
-        case JNI_EDETACHED:
-                if ((*current_vm)->AttachCurrentThread(current_vm, &env, 0) != 0) {
-                        LOG_FATAL("cannot attach JVM");
-                }
-                attached = 1;
-                break;
-        case JNI_EVERSION:
-                LOG_FATAL("bad JNI version");
-        }
-
-        // String path = context.getCacheDir().getAbsolutePath();
-        jclass context_clazz = find_class(env, "android/content/Context");
-        jmethodID getcachedir = find_method(env, context_clazz, "getCacheDir", "()Ljava/io/File;");
-        jobject file = (*env)->CallObjectMethod(env, current_ctx, getcachedir, NULL);
-        jclass file_clazz = find_class(env, "java/io/File");
-        jmethodID getabsolutepath = find_method(env, file_clazz, "getAbsolutePath", "()Ljava/lang/String;");
-        jstring jpath = (jstring)(*env)->CallObjectMethod(env, file, getabsolutepath, NULL);
-        const char* path = (*env)->GetStringUTFChars(env, jpath, NULL);
-        if (setenv("TMPDIR", path, 1) != 0) {
-                LOG_INFO("setenv(\"TMPDIR\", \"%s\", 1) failed: %d", path, errno);
-        }
-        (*env)->ReleaseStringUTFChars(env, jpath, path);
-
-        if (attached) {
-                (*current_vm)->DetachCurrentThread(current_vm);
-        }
-}
-
-// has_prefix_key returns 1 if s starts with prefix.
-static int has_prefix(const char *s, const char* prefix) {
-        while (*prefix) {
-                if (*prefix++ != *s++)
-                        return 0;
-        }
-        return 1;
-}
-
-// getenv_raw searches environ for name prefix and returns the string pair.
-// For example, getenv_raw("PATH=") returns "PATH=/bin".
-// If no entry is found, the name prefix is returned. For example "PATH=".
-static const char* getenv_raw(const char *name) {
-        extern char** environ;
-        char** env = environ;
-
-        for (env = environ; *env; env++) {
-                if (has_prefix(*env, name)) {
-                        return *env;
-                }
-        }
-        return name;
-}
-
-static void* init_go_runtime(void* unused) {
-        init_from_context();
-
-        _rt0_arm_linux1 = (int (*)(int, char**))dlsym(RTLD_DEFAULT, "_rt0_arm_linux1");
-        if (_rt0_arm_linux1 == NULL) {
-                LOG_FATAL("missing _rt0_arm_linux1");
-        }
-
-        // Defensively heap-allocate argv0, for setenv.
-        char* argv0 = strdup("gojni");
-
-        // Build argv, including the ELF auxiliary vector.
-        struct {
-                char* argv[2];
-                const char* envp[4];
-                uint32_t auxv[64];
-        } x;
-        x.argv[0] = argv0;
-        x.argv[1] = NULL;
-        x.envp[0] = getenv_raw("TMPDIR=");
-        x.envp[1] = getenv_raw("PATH=");
-        x.envp[2] = getenv_raw("LD_LIBRARY_PATH=");
-        x.envp[3] = NULL;
-
-        build_auxv(x.auxv, sizeof(x.auxv)/sizeof(uint32_t));
-        int32_t argc = 1;
-        _rt0_arm_linux1(argc, x.argv);
-        return NULL;
-}
-
-static void wait_go_runtime() {
-        pthread_mutex_lock(&go_started_mu);
-        while (go_started == 0) {
-                pthread_cond_wait(&go_started_cond, &go_started_mu);
-        }
-        pthread_mutex_unlock(&go_started_mu);
-        LOG_INFO("runtime started");
-}
-
-pthread_t nativeactivity_t;
-
-// Runtime entry point when embedding Go in other libraries.
-void InitGoRuntime() {
-        pthread_mutex_lock(&go_started_mu);
-        go_started = 0;
-        pthread_mutex_unlock(&go_started_mu);
-        pthread_cond_init(&go_started_cond, NULL);
-
-        pthread_attr_t attr; 
-        pthread_attr_init(&attr);
-        pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
-        pthread_create(&nativeactivity_t, NULL, init_go_runtime, NULL);
-        wait_go_runtime();
-}
-
-// Runtime entry point when using NativeActivity.
-void ANativeActivity_onCreate(ANativeActivity *activity, void* savedState, size_t savedStateSize) {
-        // Note that activity->clazz is mis-named.
-        current_vm = activity->vm;
-        current_ctx = (*activity->env)->NewGlobalRef(activity->env, activity->clazz);
-        current_native_activity = activity;
-
-        InitGoRuntime();
-
-        // These functions match the methods on Activity, described at
-        // http://developer.android.com/reference/android/app/Activity.html
-        activity->callbacks->onStart = onStart;
-        activity->callbacks->onResume = onResume;
-        activity->callbacks->onSaveInstanceState = onSaveInstanceState;
-        activity->callbacks->onPause = onPause;
-        activity->callbacks->onStop = onStop;
-        activity->callbacks->onDestroy = onDestroy;
-        activity->callbacks->onWindowFocusChanged = onWindowFocusChanged;
-        activity->callbacks->onNativeWindowCreated = onNativeWindowCreated;
-        activity->callbacks->onNativeWindowResized = onNativeWindowResized;
-        activity->callbacks->onNativeWindowRedrawNeeded = onNativeWindowRedrawNeeded;
-        activity->callbacks->onNativeWindowDestroyed = onNativeWindowDestroyed;
-        activity->callbacks->onInputQueueCreated = onInputQueueCreated;
-        activity->callbacks->onInputQueueDestroyed = onInputQueueDestroyed;
-        // TODO(crawshaw): Type mismatch for onContentRectChanged.
-        //activity->callbacks->onContentRectChanged = onContentRectChanged;
-        activity->callbacks->onConfigurationChanged = onConfigurationChanged;
-        activity->callbacks->onLowMemory = onLowMemory;
-
-        onCreate(activity);
-}
-
-// Runtime entry point when embedding Go in a Java App.
-JNIEXPORT void JNICALL
-Java_go_Go_run(JNIEnv* env, jclass clazz, jobject ctx) {
-        current_ctx = (*env)->NewGlobalRef(env, ctx);
-
-        if (current_ctx != NULL) {
-                // Init asset_manager.
-                jclass context_clazz = find_class(env, "android/content/Context");
-                jmethodID getassets = find_method(
-                        env, context_clazz, "getAssets", "()Landroid/content/res/AssetManager;");
-                // Prevent the java AssetManager from being GC'd
-                jobject asset_manager_ref = (*env)->NewGlobalRef(
-                        env, (*env)->CallObjectMethod(env, current_ctx, getassets));
-                asset_manager = AAssetManager_fromJava(env, asset_manager_ref);
-        }
-
-        init_go_runtime(NULL);
-}
-
-// Used by Java initialization code to know when it can use cgocall.
-JNIEXPORT void JNICALL
-Java_go_Go_waitForRun(JNIEnv* env, jclass clazz) {
-        wait_go_runtime();
-}