webrtc/rtc_base/async_invoker_inl.h
Mirko Bonadei d970807e0c Remove rtc_base/scoped_ref_ptr.h.
The type rtc::scoped_refptr<T> is now part of api/. Please include it from
api/scoped_refptr.h.

More info: See: https://groups.google.com/forum/#!topic/discuss-webrtc/Mme2MSz4z4o.

Bug: webrtc:9887, webrtc:8205
No-Try: True
Change-Id: Ic6c7c81e226e59f12f7933e472f573ae097b55bf
Reviewed-on: https://webrtc-review.googlesource.com/c/119041
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26414}
2019-01-25 20:29:58 +00:00

61 lines
2 KiB
C++

/*
* 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/scoped_refptr.h"
#include "rtc_base/bind.h"
#include "rtc_base/critical_section.h"
#include "rtc_base/event.h"
#include "rtc_base/message_handler.h"
#include "rtc_base/ref_counted_object.h"
#include "rtc_base/third_party/sigslot/sigslot.h"
#include "rtc_base/thread.h"
#include "rtc_base/thread_annotations.h"
namespace rtc {
class AsyncInvoker;
// Helper class for AsyncInvoker. Runs a task and triggers a callback
// on the calling thread if necessary.
class AsyncClosure {
public:
explicit AsyncClosure(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:
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.
scoped_refptr<RefCountedObject<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(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_