summaryrefslogtreecommitdiffstats
path: root/ipc/chromium/src/chrome/common/child_process_host.h
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /ipc/chromium/src/chrome/common/child_process_host.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'ipc/chromium/src/chrome/common/child_process_host.h')
-rw-r--r--ipc/chromium/src/chrome/common/child_process_host.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/ipc/chromium/src/chrome/common/child_process_host.h b/ipc/chromium/src/chrome/common/child_process_host.h
new file mode 100644
index 000000000..6411d3a6e
--- /dev/null
+++ b/ipc/chromium/src/chrome/common/child_process_host.h
@@ -0,0 +1,79 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_COMMON_CHILD_PROCESS_HOST_H_
+#define CHROME_COMMON_CHILD_PROCESS_HOST_H_
+
+#include "build/build_config.h"
+
+#include <list>
+
+#include "base/basictypes.h"
+#include "chrome/common/ipc_channel.h"
+#include "mozilla/UniquePtr.h"
+
+namespace mozilla {
+namespace ipc {
+class FileDescriptor;
+}
+}
+
+// Plugins/workers and other child processes that live on the IO thread should
+// derive from this class.
+class ChildProcessHost : public IPC::Channel::Listener {
+ public:
+ virtual ~ChildProcessHost();
+
+ protected:
+ explicit ChildProcessHost();
+
+ // Derived classes return true if it's ok to shut down the child process.
+ virtual bool CanShutdown() = 0;
+
+ // Creates the IPC channel. Returns true iff it succeeded.
+ bool CreateChannel();
+
+ bool CreateChannel(mozilla::ipc::FileDescriptor& aFileDescriptor);
+
+ // IPC::Channel::Listener implementation:
+ virtual void OnMessageReceived(IPC::Message&& msg) { }
+ virtual void OnChannelConnected(int32_t peer_pid) { }
+ virtual void OnChannelError() { }
+
+ bool opening_channel() { return opening_channel_; }
+ const std::wstring& channel_id() { return channel_id_; }
+
+ const IPC::Channel& channel() const { return *channel_; }
+ IPC::Channel* channelp() const { return channel_.get(); }
+
+ private:
+ // By using an internal class as the IPC::Channel::Listener, we can intercept
+ // OnMessageReceived/OnChannelConnected and do our own processing before
+ // calling the subclass' implementation.
+ class ListenerHook : public IPC::Channel::Listener {
+ public:
+ explicit ListenerHook(ChildProcessHost* host);
+ virtual void OnMessageReceived(IPC::Message&& msg);
+ virtual void OnChannelConnected(int32_t peer_pid);
+ virtual void OnChannelError();
+ virtual void GetQueuedMessages(std::queue<IPC::Message>& queue);
+ private:
+ ChildProcessHost* host_;
+ };
+
+ ListenerHook listener_;
+
+ // True while we're waiting the channel to be opened.
+ bool opening_channel_;
+
+ // The IPC::Channel.
+ mozilla::UniquePtr<IPC::Channel> channel_;
+
+ // IPC Channel's id.
+ std::wstring channel_id_;
+};
+
+#endif // CHROME_COMMON_CHILD_PROCESS_HOST_H_