Add m-esr52 at 52.6.0

1 files changed, 170 insertions, 0 deletions

diff --git a/ipc/glue/MessagePump.h b/ipc/glue/MessagePump.h
new file mode 100644
index 000000000..3e48624ed
--- /dev/null
+++ b/ipc/glue/MessagePump.h
@@ -0,0 +1,170 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __IPC_GLUE_MESSAGEPUMP_H__
+#define __IPC_GLUE_MESSAGEPUMP_H__
+
+#include "base/message_pump_default.h"
+#if defined(XP_WIN)
+#include "base/message_pump_win.h"
+#endif
+
+#include "base/time.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/Mutex.h"
+#include "nsCOMPtr.h"
+#include "nsIThreadInternal.h"
+
+class nsIThread;
+class nsITimer;
+
+namespace mozilla {
+namespace ipc {
+
+class DoWorkRunnable;
+
+class MessagePump : public base::MessagePumpDefault
+{
+  friend class DoWorkRunnable;
+
+public:
+  explicit MessagePump(nsIThread* aThread);
+
+  // From base::MessagePump.
+  virtual void
+  Run(base::MessagePump::Delegate* aDelegate) override;
+
+  // From base::MessagePump.
+  virtual void
+  ScheduleWork() override;
+
+  // From base::MessagePump.
+  virtual void
+  ScheduleWorkForNestedLoop() override;
+
+  // From base::MessagePump.
+  virtual void
+  ScheduleDelayedWork(const base::TimeTicks& aDelayedWorkTime) override;
+
+  virtual nsIEventTarget*
+  GetXPCOMThread() override;
+
+protected:
+  virtual ~MessagePump();
+
+private:
+  // Only called by DoWorkRunnable.
+  void DoDelayedWork(base::MessagePump::Delegate* aDelegate);
+
+protected:
+  nsIThread* mThread;
+
+  // mDelayedWorkTimer and mThread are set in Run() by this class or its
+  // subclasses.
+  nsCOMPtr<nsITimer> mDelayedWorkTimer;
+
+private:
+  // Only accessed by this class.
+  RefPtr<DoWorkRunnable> mDoWorkEvent;
+};
+
+class MessagePumpForChildProcess final: public MessagePump
+{
+public:
+  MessagePumpForChildProcess()
+    : MessagePump(nullptr),
+      mFirstRun(true)
+  { }
+
+  virtual void Run(base::MessagePump::Delegate* aDelegate) override;
+
+private:
+  ~MessagePumpForChildProcess()
+  { }
+
+  bool mFirstRun;
+};
+
+class MessagePumpForNonMainThreads final : public MessagePump
+{
+public:
+  explicit MessagePumpForNonMainThreads(nsIThread* aThread)
+    : MessagePump(aThread)
+  { }
+
+  virtual void Run(base::MessagePump::Delegate* aDelegate) override;
+
+private:
+  ~MessagePumpForNonMainThreads()
+  { }
+};
+
+#if defined(XP_WIN)
+// Extends the TYPE_UI message pump to process xpcom events. Currently only
+// implemented for Win.
+class MessagePumpForNonMainUIThreads final:
+  public base::MessagePumpForUI,
+  public nsIThreadObserver
+{
+public:
+  // We don't want xpcom refing, chromium controls our lifetime via
+  // RefCountedThreadSafe.
+  NS_IMETHOD_(MozExternalRefCountType) AddRef(void) override {
+    return 2;
+  }
+  NS_IMETHOD_(MozExternalRefCountType) Release(void) override  {
+    return 1;
+  }
+  NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) override;
+
+  NS_DECL_NSITHREADOBSERVER
+
+public:
+  explicit MessagePumpForNonMainUIThreads(nsIThread* aThread) :
+    mInWait(false),
+    mWaitLock("mInWait")
+  {
+  }
+
+  // The main run loop for this thread.
+  virtual void DoRunLoop() override;
+
+  virtual nsIEventTarget*
+  GetXPCOMThread() override
+  {
+    return nullptr; // not sure what to do with this one
+  }
+
+protected:
+  void SetInWait() {
+    MutexAutoLock lock(mWaitLock);
+    mInWait = true;
+  }
+
+  void ClearInWait() {
+    MutexAutoLock lock(mWaitLock);
+    mInWait = false;
+  }
+
+  bool GetInWait() {
+    MutexAutoLock lock(mWaitLock);
+    return mInWait;
+  }
+
+private:
+  ~MessagePumpForNonMainUIThreads()
+  {
+  }
+
+  bool mInWait;
+  mozilla::Mutex mWaitLock;
+};
+#endif // defined(XP_WIN)
+
+} /* namespace ipc */
+} /* namespace mozilla */
+
+#endif /* __IPC_GLUE_MESSAGEPUMP_H__ */