1// Copyright (c) 2011 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "content/public/browser/browser_ipc_logging.h"
6
7#include "base/bind.h"
8#include "content/common/child_process_messages.h"
9#include "content/public/browser/browser_child_process_host_iterator.h"
10#include "content/public/browser/browser_thread.h"
11#include "content/public/browser/render_process_host.h"
12#include "ipc/ipc_logging.h"
13
14namespace content {
15
16#if defined(IPC_MESSAGE_LOG_ENABLED)
17
18void EnableIPCLoggingForChildProcesses(bool enabled) {
19  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
20
21  BrowserChildProcessHostIterator i;  // default constr references a singleton
22  while (!i.Done()) {
23    i.Send(new ChildProcessMsg_SetIPCLoggingEnabled(enabled));
24    ++i;
25  }
26}
27
28void EnableIPCLogging(bool enable) {
29  // First enable myself.
30  if (enable)
31    IPC::Logging::GetInstance()->Enable();
32  else
33    IPC::Logging::GetInstance()->Disable();
34
35  // Now tell subprocesses.  Messages to ChildProcess-derived
36  // processes must be done on the IO thread.
37  BrowserThread::PostTask(
38      BrowserThread::IO,
39      FROM_HERE,
40      base::Bind(EnableIPCLoggingForChildProcesses, enable));
41
42  // Finally, tell the renderers which don't derive from ChildProcess.
43  // Messages to the renderers must be done on the UI (main) thread.
44  for (RenderProcessHost::iterator i(RenderProcessHost::AllHostsIterator());
45       !i.IsAtEnd(); i.Advance())
46    i.GetCurrentValue()->Send(new ChildProcessMsg_SetIPCLoggingEnabled(enable));
47}
48
49#endif  // IPC_MESSAGE_LOG_ENABLED
50
51}  // namespace content
52