1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/glue/BrowserProcessSubThread.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,83 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * vim: sw=2 ts=8 et :
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#ifndef mozilla_ipc_BrowserProcessSubThread_h
1.12 +#define mozilla_ipc_BrowserProcessSubThread_h
1.13 +
1.14 +#include "base/thread.h"
1.15 +#include "base/lock.h"
1.16 +
1.17 +#include "nsDebug.h"
1.18 +
1.19 +class NotificationService;
1.20 +
1.21 +namespace mozilla {
1.22 +namespace ipc {
1.23 +
1.24 +// Copied from browser_process_impl.cc, modified slightly.
1.25 +class BrowserProcessSubThread : public base::Thread
1.26 +{
1.27 +public:
1.28 + // An enumeration of the well-known threads.
1.29 + enum ID {
1.30 + IO,
1.31 + //FILE,
1.32 + //DB,
1.33 + //HISTORY,
1.34 +#if defined(OS_LINUX)
1.35 + // This thread has a second connection to the X server and is used
1.36 + // to process UI requests when routing the request to the UI
1.37 + // thread would risk deadlock.
1.38 + BACKGROUND_X11,
1.39 +#endif
1.40 +
1.41 + // This identifier does not represent a thread. Instead it counts
1.42 + // the number of well-known threads. Insert new well-known
1.43 + // threads before this identifier.
1.44 + ID_COUNT
1.45 + };
1.46 +
1.47 + explicit BrowserProcessSubThread(ID aId);
1.48 + ~BrowserProcessSubThread();
1.49 +
1.50 + static MessageLoop* GetMessageLoop(ID identifier);
1.51 +
1.52 +protected:
1.53 + virtual void Init();
1.54 + virtual void CleanUp();
1.55 +
1.56 +private:
1.57 + // The identifier of this thread. Only one thread can exist with a given
1.58 + // identifier at a given time.
1.59 + ID mIdentifier;
1.60 +
1.61 + NotificationService* mNotificationService;
1.62 +
1.63 + // This lock protects |browser_threads_|. Do not read or modify that array
1.64 + // without holding this lock. Do not block while holding this lock.
1.65 +
1.66 + // FIXME/cjones: XPCOM doesn't like static vars, so can't use
1.67 + // mozilla::Mutex
1.68 + static Lock sLock;
1.69 +
1.70 + // An array of the ChromeThread objects. This array is protected by |lock_|.
1.71 + // The threads are not owned by this array. Typically, the threads are owned
1.72 + // on the UI thread by the g_browser_process object. ChromeThreads remove
1.73 + // themselves from this array upon destruction.
1.74 + static BrowserProcessSubThread* sBrowserThreads[ID_COUNT];
1.75 +};
1.76 +
1.77 +inline void AssertIOThread()
1.78 +{
1.79 + NS_ASSERTION(MessageLoop::TYPE_IO == MessageLoop::current()->type(),
1.80 + "should be on the IO thread!");
1.81 +}
1.82 +
1.83 +} // namespace ipc
1.84 +} // namespace mozilla
1.85 +
1.86 +#endif // mozilla_ipc_BrowserProcessSubThread_h
