ipc/chromium/src/chrome/common/child_process.cc@6474c204b198 (annotated)
ipc/chromium/src/chrome/common/child_process.cc
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| michael@0 | 2 | // Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 3 | // found in the LICENSE file. |
| michael@0 | 4 | |
| michael@0 | 5 | #include "chrome/common/child_process.h" |
| michael@0 | 6 | |
| michael@0 | 7 | #include "base/basictypes.h" |
| michael@0 | 8 | #include "base/string_util.h" |
| michael@0 | 9 | #include "chrome/common/child_thread.h" |
| michael@0 | 10 | |
| michael@0 | 11 | ChildProcess* ChildProcess::child_process_; |
| michael@0 | 12 | |
| michael@0 | 13 | ChildProcess::ChildProcess(ChildThread* child_thread) |
| michael@0 | 14 | : child_thread_(child_thread), |
| michael@0 | 15 | ref_count_(0), |
| michael@0 | 16 | shutdown_event_(true, false) { |
| michael@0 | 17 | DCHECK(!child_process_); |
| michael@0 | 18 | child_process_ = this; |
| michael@0 | 19 | if (child_thread_.get()) // null in unittests. |
| michael@0 | 20 | child_thread_->Run(); |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | ChildProcess::~ChildProcess() { |
| michael@0 | 24 | DCHECK(child_process_ == this); |
| michael@0 | 25 | |
| michael@0 | 26 | // Signal this event before destroying the child process. That way all |
| michael@0 | 27 | // background threads can cleanup. |
| michael@0 | 28 | // For example, in the renderer the RenderThread instances will be able to |
| michael@0 | 29 | // notice shutdown before the render process begins waiting for them to exit. |
| michael@0 | 30 | shutdown_event_.Signal(); |
| michael@0 | 31 | |
| michael@0 | 32 | if (child_thread_.get()) |
| michael@0 | 33 | child_thread_->Stop(); |
| michael@0 | 34 | |
| michael@0 | 35 | child_process_ = NULL; |
| michael@0 | 36 | } |
| michael@0 | 37 | |
| michael@0 | 38 | void ChildProcess::AddRefProcess() { |
| michael@0 | 39 | DCHECK(!child_thread_.get() || // null in unittests. |
| michael@0 | 40 | MessageLoop::current() == child_thread_->message_loop()); |
| michael@0 | 41 | ref_count_++; |
| michael@0 | 42 | } |
| michael@0 | 43 | |
| michael@0 | 44 | void ChildProcess::ReleaseProcess() { |
| michael@0 | 45 | DCHECK(!child_thread_.get() || // null in unittests. |
| michael@0 | 46 | MessageLoop::current() == child_thread_->message_loop()); |
| michael@0 | 47 | DCHECK(ref_count_); |
| michael@0 | 48 | DCHECK(child_process_); |
| michael@0 | 49 | if (--ref_count_) |
| michael@0 | 50 | return; |
| michael@0 | 51 | |
| michael@0 | 52 | if (child_thread_.get()) // null in unittests. |
| michael@0 | 53 | child_thread_->OnProcessFinalRelease(); |
| michael@0 | 54 | } |
| michael@0 | 55 | |
| michael@0 | 56 | base::WaitableEvent* ChildProcess::GetShutDownEvent() { |
| michael@0 | 57 | DCHECK(child_process_); |
| michael@0 | 58 | return &child_process_->shutdown_event_; |
| michael@0 | 59 | } |
