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/*
* Copyright 2014 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef RTC_BASE_ASYNC_INVOKER_INL_H_
#define RTC_BASE_ASYNC_INVOKER_INL_H_
#include "api/make_ref_counted.h"
#include "api/scoped_refptr.h"
#include "rtc_base/event.h"
#include "rtc_base/message_handler.h"
#include "rtc_base/third_party/sigslot/sigslot.h"
#include "rtc_base/thread.h"
#include "rtc_base/thread_annotations.h"
namespace rtc {
class DEPRECATED_AsyncInvoker;
// Helper class for DEPRECATED_AsyncInvoker. Runs a task and triggers a callback
// on the calling thread if necessary.
class AsyncClosure {
public:
explicit AsyncClosure(DEPRECATED_AsyncInvoker* invoker);
virtual ~AsyncClosure();
// Runs the asynchronous task, and triggers a callback to the calling
// thread if needed. Should be called from the target thread.
virtual void Execute() = 0;
protected:
DEPRECATED_AsyncInvoker* invoker_;
// Reference counted so that if the AsyncInvoker destructor finishes before
// an AsyncClosure's destructor that's about to call
// "invocation_complete_->Set()", it's not dereferenced after being
// destroyed.
rtc::scoped_refptr<FinalRefCountedObject<Event>> invocation_complete_;
};
// Simple closure that doesn't trigger a callback for the calling thread.
template <class FunctorT>
class FireAndForgetAsyncClosure : public AsyncClosure {
public:
explicit FireAndForgetAsyncClosure(DEPRECATED_AsyncInvoker* invoker,
FunctorT&& functor)
: AsyncClosure(invoker), functor_(std::forward<FunctorT>(functor)) {}
virtual void Execute() { functor_(); }
private:
typename std::decay<FunctorT>::type functor_;
};
} // namespace rtc
#endif // RTC_BASE_ASYNC_INVOKER_INL_H_
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