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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/android/java_handler_thread.h"
#include <jni.h>
#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/message_loop/message_loop.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/thread_restrictions.h"
#include "jni/JavaHandlerThread_jni.h"
namespace base {
namespace android {
JavaHandlerThread::JavaHandlerThread(const char* name) {
JNIEnv* env = base::android::AttachCurrentThread();
java_thread_.Reset(Java_JavaHandlerThread_create(
env, ConvertUTF8ToJavaString(env, name).obj()));
}
JavaHandlerThread::~JavaHandlerThread() {
}
void JavaHandlerThread::Start() {
// Check the thread has not already been started.
DCHECK(!message_loop_);
JNIEnv* env = base::android::AttachCurrentThread();
base::WaitableEvent initialize_event(false, false);
Java_JavaHandlerThread_start(env,
java_thread_.obj(),
reinterpret_cast<intptr_t>(this),
reinterpret_cast<intptr_t>(&initialize_event));
// Wait for thread to be initialized so it is ready to be used when Start
// returns.
base::ThreadRestrictions::ScopedAllowWait wait_allowed;
initialize_event.Wait();
}
void JavaHandlerThread::Stop() {
JNIEnv* env = base::android::AttachCurrentThread();
base::WaitableEvent shutdown_event(false, false);
Java_JavaHandlerThread_stop(env,
java_thread_.obj(),
reinterpret_cast<intptr_t>(this),
reinterpret_cast<intptr_t>(&shutdown_event));
// Wait for thread to shut down before returning.
base::ThreadRestrictions::ScopedAllowWait wait_allowed;
shutdown_event.Wait();
}
void JavaHandlerThread::InitializeThread(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jlong event) {
// TYPE_JAVA to get the Android java style message loop.
message_loop_.reset(new base::MessageLoop(base::MessageLoop::TYPE_JAVA));
static_cast<MessageLoopForUI*>(message_loop_.get())->Start();
reinterpret_cast<base::WaitableEvent*>(event)->Signal();
}
void JavaHandlerThread::StopThread(JNIEnv* env,
const JavaParamRef<jobject>& obj,
jlong event) {
static_cast<MessageLoopForUI*>(message_loop_.get())->QuitWhenIdle();
reinterpret_cast<base::WaitableEvent*>(event)->Signal();
}
// static
bool JavaHandlerThread::RegisterBindings(JNIEnv* env) {
return RegisterNativesImpl(env);
}
} // namespace android
} // namespace base
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