| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #include <jni.h> |
| |
| #include <errno.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| #include <sys/resource.h> |
| |
| #include "android_native_app_glue.h" |
| #include <android/log.h> |
| |
| #define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "threaded_app", __VA_ARGS__)) |
| #define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, "threaded_app", __VA_ARGS__)) |
| |
| /* For debug builds, always enable the debug traces in this library */ |
| #ifndef NDEBUG |
| # define LOGV(...) ((void)__android_log_print(ANDROID_LOG_VERBOSE, "threaded_app", __VA_ARGS__)) |
| #else |
| # define LOGV(...) ((void)0) |
| #endif |
| |
| static void free_saved_state(struct android_app* android_app) { |
| pthread_mutex_lock(&android_app->mutex); |
| if (android_app->savedState != NULL) { |
| free(android_app->savedState); |
| android_app->savedState = NULL; |
| android_app->savedStateSize = 0; |
| } |
| pthread_mutex_unlock(&android_app->mutex); |
| } |
| |
| int8_t android_app_read_cmd(struct android_app* android_app) { |
| int8_t cmd; |
| if (read(android_app->msgread, &cmd, sizeof(cmd)) == sizeof(cmd)) { |
| switch (cmd) { |
| case APP_CMD_SAVE_STATE: |
| free_saved_state(android_app); |
| break; |
| } |
| return cmd; |
| } else { |
| LOGE("No data on command pipe!"); |
| } |
| return -1; |
| } |
| |
| static void print_cur_config(struct android_app* android_app) { |
| char lang[2], country[2]; |
| AConfiguration_getLanguage(android_app->config, lang); |
| AConfiguration_getCountry(android_app->config, country); |
| |
| LOGV("Config: mcc=%d mnc=%d lang=%c%c cnt=%c%c orien=%d touch=%d dens=%d " |
| "keys=%d nav=%d keysHid=%d navHid=%d sdk=%d size=%d long=%d " |
| "modetype=%d modenight=%d", |
| AConfiguration_getMcc(android_app->config), |
| AConfiguration_getMnc(android_app->config), |
| lang[0], lang[1], country[0], country[1], |
| AConfiguration_getOrientation(android_app->config), |
| AConfiguration_getTouchscreen(android_app->config), |
| AConfiguration_getDensity(android_app->config), |
| AConfiguration_getKeyboard(android_app->config), |
| AConfiguration_getNavigation(android_app->config), |
| AConfiguration_getKeysHidden(android_app->config), |
| AConfiguration_getNavHidden(android_app->config), |
| AConfiguration_getSdkVersion(android_app->config), |
| AConfiguration_getScreenSize(android_app->config), |
| AConfiguration_getScreenLong(android_app->config), |
| AConfiguration_getUiModeType(android_app->config), |
| AConfiguration_getUiModeNight(android_app->config)); |
| } |
| |
| void android_app_pre_exec_cmd(struct android_app* android_app, int8_t cmd) { |
| switch (cmd) { |
| case APP_CMD_INPUT_CHANGED: |
| LOGV("APP_CMD_INPUT_CHANGED\n"); |
| pthread_mutex_lock(&android_app->mutex); |
| if (android_app->inputQueue != NULL) { |
| AInputQueue_detachLooper(android_app->inputQueue); |
| } |
| android_app->inputQueue = android_app->pendingInputQueue; |
| if (android_app->inputQueue != NULL) { |
| LOGV("Attaching input queue to looper"); |
| AInputQueue_attachLooper(android_app->inputQueue, |
| android_app->looper, LOOPER_ID_INPUT, NULL, |
| &android_app->inputPollSource); |
| } |
| pthread_cond_broadcast(&android_app->cond); |
| pthread_mutex_unlock(&android_app->mutex); |
| break; |
| |
| case APP_CMD_INIT_WINDOW: |
| LOGV("APP_CMD_INIT_WINDOW\n"); |
| pthread_mutex_lock(&android_app->mutex); |
| android_app->window = android_app->pendingWindow; |
| pthread_cond_broadcast(&android_app->cond); |
| pthread_mutex_unlock(&android_app->mutex); |
| break; |
| |
| case APP_CMD_TERM_WINDOW: |
| LOGV("APP_CMD_TERM_WINDOW\n"); |
| pthread_cond_broadcast(&android_app->cond); |
| break; |
| |
| case APP_CMD_RESUME: |
| case APP_CMD_START: |
| case APP_CMD_PAUSE: |
| case APP_CMD_STOP: |
| LOGV("activityState=%d\n", cmd); |
| pthread_mutex_lock(&android_app->mutex); |
| android_app->activityState = cmd; |
| pthread_cond_broadcast(&android_app->cond); |
| pthread_mutex_unlock(&android_app->mutex); |
| break; |
| |
| case APP_CMD_CONFIG_CHANGED: |
| LOGV("APP_CMD_CONFIG_CHANGED\n"); |
| AConfiguration_fromAssetManager(android_app->config, |
| android_app->activity->assetManager); |
| print_cur_config(android_app); |
| break; |
| |
| case APP_CMD_DESTROY: |
| LOGV("APP_CMD_DESTROY\n"); |
| android_app->destroyRequested = 1; |
| break; |
| } |
| } |
| |
| void android_app_post_exec_cmd(struct android_app* android_app, int8_t cmd) { |
| switch (cmd) { |
| case APP_CMD_TERM_WINDOW: |
| LOGV("APP_CMD_TERM_WINDOW\n"); |
| pthread_mutex_lock(&android_app->mutex); |
| android_app->window = NULL; |
| pthread_cond_broadcast(&android_app->cond); |
| pthread_mutex_unlock(&android_app->mutex); |
| break; |
| |
| case APP_CMD_SAVE_STATE: |
| LOGV("APP_CMD_SAVE_STATE\n"); |
| pthread_mutex_lock(&android_app->mutex); |
| android_app->stateSaved = 1; |
| pthread_cond_broadcast(&android_app->cond); |
| pthread_mutex_unlock(&android_app->mutex); |
| break; |
| |
| case APP_CMD_RESUME: |
| free_saved_state(android_app); |
| break; |
| } |
| } |
| |
| void app_dummy(void) { |
| |
| } |
| |
| static void android_app_destroy(struct android_app* android_app) { |
| LOGV("android_app_destroy!"); |
| free_saved_state(android_app); |
| pthread_mutex_lock(&android_app->mutex); |
| if (android_app->inputQueue != NULL) { |
| AInputQueue_detachLooper(android_app->inputQueue); |
| } |
| AConfiguration_delete(android_app->config); |
| android_app->destroyed = 1; |
| pthread_cond_broadcast(&android_app->cond); |
| pthread_mutex_unlock(&android_app->mutex); |
| // Can't touch android_app object after this. |
| } |
| |
| static void process_input(struct android_app* app, struct android_poll_source* source) { |
| AInputEvent* event = NULL; |
| while (AInputQueue_getEvent(app->inputQueue, &event) >= 0) { |
| LOGV("New input event: type=%d\n", AInputEvent_getType(event)); |
| if (AInputQueue_preDispatchEvent(app->inputQueue, event)) { |
| continue; |
| } |
| int32_t handled = 0; |
| if (app->onInputEvent != NULL) handled = app->onInputEvent(app, event); |
| AInputQueue_finishEvent(app->inputQueue, event, handled); |
| } |
| } |
| |
| static void process_cmd(struct android_app* app, struct android_poll_source* source) { |
| int8_t cmd = android_app_read_cmd(app); |
| android_app_pre_exec_cmd(app, cmd); |
| if (app->onAppCmd != NULL) app->onAppCmd(app, cmd); |
| android_app_post_exec_cmd(app, cmd); |
| } |
| |
| static void* android_app_entry(void* param) { |
| struct android_app* android_app = (struct android_app*)param; |
| |
| android_app->config = AConfiguration_new(); |
| AConfiguration_fromAssetManager(android_app->config, android_app->activity->assetManager); |
| |
| print_cur_config(android_app); |
| |
| android_app->cmdPollSource.id = LOOPER_ID_MAIN; |
| android_app->cmdPollSource.app = android_app; |
| android_app->cmdPollSource.process = process_cmd; |
| android_app->inputPollSource.id = LOOPER_ID_INPUT; |
| android_app->inputPollSource.app = android_app; |
| android_app->inputPollSource.process = process_input; |
| |
| ALooper* looper = ALooper_prepare(ALOOPER_PREPARE_ALLOW_NON_CALLBACKS); |
| ALooper_addFd(looper, android_app->msgread, LOOPER_ID_MAIN, ALOOPER_EVENT_INPUT, NULL, |
| &android_app->cmdPollSource); |
| android_app->looper = looper; |
| |
| pthread_mutex_lock(&android_app->mutex); |
| android_app->running = 1; |
| pthread_cond_broadcast(&android_app->cond); |
| pthread_mutex_unlock(&android_app->mutex); |
| |
| android_main(android_app); |
| |
| android_app_destroy(android_app); |
| return NULL; |
| } |
| |
| // -------------------------------------------------------------------- |
| // Native activity interaction (called from main thread) |
| // -------------------------------------------------------------------- |
| |
| static struct android_app* android_app_create(ANativeActivity* activity, |
| void* savedState, size_t savedStateSize) { |
| struct android_app* android_app = (struct android_app*)malloc(sizeof(struct android_app)); |
| memset(android_app, 0, sizeof(struct android_app)); |
| android_app->activity = activity; |
| |
| pthread_mutex_init(&android_app->mutex, NULL); |
| pthread_cond_init(&android_app->cond, NULL); |
| |
| if (savedState != NULL) { |
| android_app->savedState = malloc(savedStateSize); |
| android_app->savedStateSize = savedStateSize; |
| memcpy(android_app->savedState, savedState, savedStateSize); |
| } |
| |
| int msgpipe[2]; |
| if (pipe(msgpipe)) { |
| LOGE("could not create pipe: %s", strerror(errno)); |
| return NULL; |
| } |
| android_app->msgread = msgpipe[0]; |
| android_app->msgwrite = msgpipe[1]; |
| |
| pthread_attr_t attr; |
| pthread_attr_init(&attr); |
| pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); |
| pthread_create(&android_app->thread, &attr, android_app_entry, android_app); |
| |
| // Wait for thread to start. |
| pthread_mutex_lock(&android_app->mutex); |
| while (!android_app->running) { |
| pthread_cond_wait(&android_app->cond, &android_app->mutex); |
| } |
| pthread_mutex_unlock(&android_app->mutex); |
| |
| return android_app; |
| } |
| |
| static void android_app_write_cmd(struct android_app* android_app, int8_t cmd) { |
| if (write(android_app->msgwrite, &cmd, sizeof(cmd)) != sizeof(cmd)) { |
| LOGE("Failure writing android_app cmd: %s\n", strerror(errno)); |
| } |
| } |
| |
| static void android_app_set_input(struct android_app* android_app, AInputQueue* inputQueue) { |
| pthread_mutex_lock(&android_app->mutex); |
| android_app->pendingInputQueue = inputQueue; |
| android_app_write_cmd(android_app, APP_CMD_INPUT_CHANGED); |
| while (android_app->inputQueue != android_app->pendingInputQueue) { |
| pthread_cond_wait(&android_app->cond, &android_app->mutex); |
| } |
| pthread_mutex_unlock(&android_app->mutex); |
| } |
| |
| static void android_app_set_window(struct android_app* android_app, ANativeWindow* window) { |
| pthread_mutex_lock(&android_app->mutex); |
| if (android_app->pendingWindow != NULL) { |
| android_app_write_cmd(android_app, APP_CMD_TERM_WINDOW); |
| } |
| android_app->pendingWindow = window; |
| if (window != NULL) { |
| android_app_write_cmd(android_app, APP_CMD_INIT_WINDOW); |
| } |
| while (android_app->window != android_app->pendingWindow) { |
| pthread_cond_wait(&android_app->cond, &android_app->mutex); |
| } |
| pthread_mutex_unlock(&android_app->mutex); |
| } |
| |
| static void android_app_set_activity_state(struct android_app* android_app, int8_t cmd) { |
| pthread_mutex_lock(&android_app->mutex); |
| android_app_write_cmd(android_app, cmd); |
| while (android_app->activityState != cmd) { |
| pthread_cond_wait(&android_app->cond, &android_app->mutex); |
| } |
| pthread_mutex_unlock(&android_app->mutex); |
| } |
| |
| static void android_app_free(struct android_app* android_app) { |
| pthread_mutex_lock(&android_app->mutex); |
| android_app_write_cmd(android_app, APP_CMD_DESTROY); |
| while (!android_app->destroyed) { |
| pthread_cond_wait(&android_app->cond, &android_app->mutex); |
| } |
| pthread_mutex_unlock(&android_app->mutex); |
| |
| close(android_app->msgread); |
| close(android_app->msgwrite); |
| pthread_cond_destroy(&android_app->cond); |
| pthread_mutex_destroy(&android_app->mutex); |
| free(android_app); |
| } |
| |
| static void onDestroy(ANativeActivity* activity) { |
| LOGV("Destroy: %p\n", activity); |
| android_app_free((struct android_app*)activity->instance); |
| } |
| |
| static void onStart(ANativeActivity* activity) { |
| LOGV("Start: %p\n", activity); |
| android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_START); |
| } |
| |
| static void onResume(ANativeActivity* activity) { |
| LOGV("Resume: %p\n", activity); |
| android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_RESUME); |
| } |
| |
| static void* onSaveInstanceState(ANativeActivity* activity, size_t* outLen) { |
| struct android_app* android_app = (struct android_app*)activity->instance; |
| void* savedState = NULL; |
| |
| LOGV("SaveInstanceState: %p\n", activity); |
| pthread_mutex_lock(&android_app->mutex); |
| android_app->stateSaved = 0; |
| android_app_write_cmd(android_app, APP_CMD_SAVE_STATE); |
| while (!android_app->stateSaved) { |
| pthread_cond_wait(&android_app->cond, &android_app->mutex); |
| } |
| |
| if (android_app->savedState != NULL) { |
| savedState = android_app->savedState; |
| *outLen = android_app->savedStateSize; |
| android_app->savedState = NULL; |
| android_app->savedStateSize = 0; |
| } |
| |
| pthread_mutex_unlock(&android_app->mutex); |
| |
| return savedState; |
| } |
| |
| static void onPause(ANativeActivity* activity) { |
| LOGV("Pause: %p\n", activity); |
| android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_PAUSE); |
| } |
| |
| static void onStop(ANativeActivity* activity) { |
| LOGV("Stop: %p\n", activity); |
| android_app_set_activity_state((struct android_app*)activity->instance, APP_CMD_STOP); |
| } |
| |
| static void onConfigurationChanged(ANativeActivity* activity) { |
| struct android_app* android_app = (struct android_app*)activity->instance; |
| LOGV("ConfigurationChanged: %p\n", activity); |
| android_app_write_cmd(android_app, APP_CMD_CONFIG_CHANGED); |
| } |
| |
| static void onLowMemory(ANativeActivity* activity) { |
| struct android_app* android_app = (struct android_app*)activity->instance; |
| LOGV("LowMemory: %p\n", activity); |
| android_app_write_cmd(android_app, APP_CMD_LOW_MEMORY); |
| } |
| |
| static void onWindowFocusChanged(ANativeActivity* activity, int focused) { |
| LOGV("WindowFocusChanged: %p -- %d\n", activity, focused); |
| android_app_write_cmd((struct android_app*)activity->instance, |
| focused ? APP_CMD_GAINED_FOCUS : APP_CMD_LOST_FOCUS); |
| } |
| |
| static void onNativeWindowCreated(ANativeActivity* activity, ANativeWindow* window) { |
| LOGV("NativeWindowCreated: %p -- %p\n", activity, window); |
| android_app_set_window((struct android_app*)activity->instance, window); |
| } |
| |
| static void onNativeWindowDestroyed(ANativeActivity* activity, ANativeWindow* window) { |
| LOGV("NativeWindowDestroyed: %p -- %p\n", activity, window); |
| android_app_set_window((struct android_app*)activity->instance, NULL); |
| } |
| |
| static void onInputQueueCreated(ANativeActivity* activity, AInputQueue* queue) { |
| LOGV("InputQueueCreated: %p -- %p\n", activity, queue); |
| android_app_set_input((struct android_app*)activity->instance, queue); |
| } |
| |
| static void onInputQueueDestroyed(ANativeActivity* activity, AInputQueue* queue) { |
| LOGV("InputQueueDestroyed: %p -- %p\n", activity, queue); |
| android_app_set_input((struct android_app*)activity->instance, NULL); |
| } |
| |
| __attribute__((visibility("default"))) void ANativeActivity_onCreate(ANativeActivity* activity, |
| void* savedState, size_t savedStateSize) { |
| LOGV("Creating: %p\n", activity); |
| activity->callbacks->onDestroy = onDestroy; |
| activity->callbacks->onStart = onStart; |
| activity->callbacks->onResume = onResume; |
| activity->callbacks->onSaveInstanceState = onSaveInstanceState; |
| activity->callbacks->onPause = onPause; |
| activity->callbacks->onStop = onStop; |
| activity->callbacks->onConfigurationChanged = onConfigurationChanged; |
| activity->callbacks->onLowMemory = onLowMemory; |
| activity->callbacks->onWindowFocusChanged = onWindowFocusChanged; |
| activity->callbacks->onNativeWindowCreated = onNativeWindowCreated; |
| activity->callbacks->onNativeWindowDestroyed = onNativeWindowDestroyed; |
| activity->callbacks->onInputQueueCreated = onInputQueueCreated; |
| activity->callbacks->onInputQueueDestroyed = onInputQueueDestroyed; |
| |
| activity->instance = android_app_create(activity, savedState, savedStateSize); |
| } |