cef/libcef/renderer/thread_util.h

60 lines
2.0 KiB
C++

// Copyright (c) 2013 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#ifndef CEF_LIBCEF_RENDERER_THREAD_UTIL_H_
#define CEF_LIBCEF_RENDERER_THREAD_UTIL_H_
#pragma once
#include "libcef/common/task_runner_manager.h"
#include "base/location.h"
#include "base/logging.h"
#include "content/public/renderer/render_thread.h"
#define CEF_CURRENTLY_ON_RT() (!!content::RenderThread::Get())
#define CEF_REQUIRE_RT() DCHECK(CEF_CURRENTLY_ON_RT())
#define CEF_REQUIRE_RT_RETURN(var) \
if (!CEF_CURRENTLY_ON_RT()) { \
DCHECK(false) << "called on invalid thread"; \
return var; \
}
#define CEF_REQUIRE_RT_RETURN_VOID() \
if (!CEF_CURRENTLY_ON_RT()) { \
DCHECK(false) << "called on invalid thread"; \
return; \
}
#define CEF_RENDER_TASK_RUNNER() \
(CefTaskRunnerManager::Get()->GetRenderTaskRunner())
#define CEF_POST_TASK_RT(task) \
CEF_RENDER_TASK_RUNNER()->PostTask(FROM_HERE, task)
#define CEF_POST_DELAYED_TASK_RT(task, delay_ms) \
CEF_RENDER_TASK_RUNNER()->PostDelayedTask(FROM_HERE, task, \
base::Milliseconds(delay_ms))
// Use this template in conjuction with RefCountedThreadSafe when you want to
// ensure that an object is deleted on the render thread.
struct CefDeleteOnRenderThread {
template <typename T>
static void Destruct(const T* x) {
if (CEF_CURRENTLY_ON_RT()) {
delete x;
} else {
if (!CEF_RENDER_TASK_RUNNER()->DeleteSoon(FROM_HERE, x)) {
#if defined(UNIT_TEST)
// Only logged under unit testing because leaks at shutdown
// are acceptable under normal circumstances.
LOG(ERROR) << "DeleteSoon failed on thread " << thread;
#endif // UNIT_TEST
}
}
}
};
#endif // CEF_LIBCEF_RENDERER_THREAD_UTIL_H_