ehmaldonado 370dd47973 Revert of Remove remains of webrtc/base (patchset #7 id:120001 of https://codereview.webrtc.org/2973183002/ )
Reason for revert:
Breaks lots of downstream projects.

Original issue's description:
> Remove remains of webrtc/base
>
> All downstream code have been updated to the new location.
>
> In PRESUBMIT.py:
> * Remove webrtc/rtc_base from CPP_BLACKLIST
> * Add webrtc/rtc_base to LEGACY_API_DIRS
>
> Fix some duplicated paths in
> webrtc/modules/audio_processing/test/conversational_speech/BUILD.gn
>
> BUG=webrtc:7634
> TBR=kwiberg@webrtc.org
>
> Review-Url: https://codereview.webrtc.org/2973183002
> Cr-Commit-Position: refs/heads/master@{#18948}
> Committed:
9483b49baf

TBR=kwiberg@webrtc.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7634

Review-Url: https://codereview.webrtc.org/2976633002
Cr-Commit-Position: refs/heads/master@{#18949}
2017-07-10 12:58:42 +00:00

70 lines
2.5 KiB
C

/*
* Copyright 2012 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.
*/
// Bind() is an overloaded function that converts method calls into function
// objects (aka functors). The method object is captured as a scoped_refptr<> if
// possible, and as a raw pointer otherwise. Any arguments to the method are
// captured by value. The return value of Bind is a stateful, nullary function
// object. Care should be taken about the lifetime of objects captured by
// Bind(); the returned functor knows nothing about the lifetime of a non
// ref-counted method object or any arguments passed by pointer, and calling the
// functor with a destroyed object will surely do bad things.
//
// To prevent the method object from being captured as a scoped_refptr<>, you
// can use Unretained. But this should only be done when absolutely necessary,
// and when the caller knows the extra reference isn't needed.
//
// Example usage:
// struct Foo {
// int Test1() { return 42; }
// int Test2() const { return 52; }
// int Test3(int x) { return x*x; }
// float Test4(int x, float y) { return x + y; }
// };
//
// int main() {
// Foo foo;
// cout << rtc::Bind(&Foo::Test1, &foo)() << endl;
// cout << rtc::Bind(&Foo::Test2, &foo)() << endl;
// cout << rtc::Bind(&Foo::Test3, &foo, 3)() << endl;
// cout << rtc::Bind(&Foo::Test4, &foo, 7, 8.5f)() << endl;
// }
//
// Example usage of ref counted objects:
// struct Bar {
// int AddRef();
// int Release();
//
// void Test() {}
// void BindThis() {
// // The functor passed to AsyncInvoke() will keep this object alive.
// invoker.AsyncInvoke(RTC_FROM_HERE,rtc::Bind(&Bar::Test, this));
// }
// };
//
// int main() {
// rtc::scoped_refptr<Bar> bar = new rtc::RefCountedObject<Bar>();
// auto functor = rtc::Bind(&Bar::Test, bar);
// bar = nullptr;
// // The functor stores an internal scoped_refptr<Bar>, so this is safe.
// functor();
// }
//
#ifndef WEBRTC_BASE_BIND_H_
#define WEBRTC_BASE_BIND_H_
// This header is deprecated and is just left here temporarily during
// refactoring. See https://bugs.webrtc.org/7634 for more details.
#include "webrtc/rtc_base/bind.h"
#endif // WEBRTC_BASE_BIND_H_