1 files changed, 83 insertions, 0 deletions
diff --git a/ipc/glue/BrowserProcessSubThread.cpp b/ipc/glue/BrowserProcessSubThread.cpp
new file mode 100644
index 0000000000..bd24bf6e3f
--- /dev/null
+++ b/ipc/glue/BrowserProcessSubThread.cpp
@@ -0,0 +1,83 @@
+/* -*- 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/. */
+
+#include "mozilla/ipc/BrowserProcessSubThread.h"
+#include "mozilla/ipc/NodeController.h"
+
+#if defined(OS_WIN)
+#  include <objbase.h>
+#endif
+
+namespace mozilla {
+namespace ipc {
+
+//
+// BrowserProcessSubThread
+//
+
+// Friendly names for the well-known threads.
+static const char* kBrowserThreadNames[BrowserProcessSubThread::ID_COUNT] = {
+    "IPC I/O Parent",  // IO
+};
+
+/* static */
+StaticMutex BrowserProcessSubThread::sLock;
+BrowserProcessSubThread* BrowserProcessSubThread::sBrowserThreads[ID_COUNT] = {
+    nullptr,  // IO
+};
+
+BrowserProcessSubThread::BrowserProcessSubThread(ID aId)
+    : base::Thread(kBrowserThreadNames[aId]), mIdentifier(aId) {
+  StaticMutexAutoLock lock(sLock);
+  DCHECK(aId >= 0 && aId < ID_COUNT);
+  DCHECK(sBrowserThreads[aId] == nullptr);
+  sBrowserThreads[aId] = this;
+}
+
+BrowserProcessSubThread::~BrowserProcessSubThread() {
+  Stop();
+  {
+    StaticMutexAutoLock lock(sLock);
+    sBrowserThreads[mIdentifier] = nullptr;
+  }
+}
+
+void BrowserProcessSubThread::Init() {
+#if defined(OS_WIN)
+  // Initializes the COM library on the current thread.
+  CoInitialize(nullptr);
+#endif
+
+  // Initialize the ports library in the current thread.
+  if (mIdentifier == IO) {
+    NodeController::InitBrokerProcess();
+  }
+}
+
+void BrowserProcessSubThread::CleanUp() {
+  if (mIdentifier == IO) {
+    NodeController::CleanUp();
+  }
+
+#if defined(OS_WIN)
+  // Closes the COM library on the current thread. CoInitialize must
+  // be balanced by a corresponding call to CoUninitialize.
+  CoUninitialize();
+#endif
+}
+
+// static
+MessageLoop* BrowserProcessSubThread::GetMessageLoop(ID aId) {
+  StaticMutexAutoLock lock(sLock);
+  DCHECK(aId >= 0 && aId < ID_COUNT);
+
+  if (sBrowserThreads[aId]) return sBrowserThreads[aId]->message_loop();
+
+  return nullptr;
+}
+
+}  // namespace ipc
+}  // namespace mozilla