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Unified Diff: mojo/edk/system/message_pipe.h

Issue 623883002: Revert "Move mojo edk into mojo/edk" (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 2 months ago
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Index: mojo/edk/system/message_pipe.h
diff --git a/mojo/edk/system/message_pipe.h b/mojo/edk/system/message_pipe.h
deleted file mode 100644
index e1d9f636c39dd95ca2d87063d3d000dbc3550ea1..0000000000000000000000000000000000000000
--- a/mojo/edk/system/message_pipe.h
+++ /dev/null
@@ -1,132 +0,0 @@
-// Copyright 2013 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 MOJO_EDK_SYSTEM_MESSAGE_PIPE_H_
-#define MOJO_EDK_SYSTEM_MESSAGE_PIPE_H_
-
-#include <stdint.h>
-
-#include <vector>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/synchronization/lock.h"
-#include "mojo/edk/system/dispatcher.h"
-#include "mojo/edk/system/handle_signals_state.h"
-#include "mojo/edk/system/memory.h"
-#include "mojo/edk/system/message_in_transit.h"
-#include "mojo/edk/system/message_pipe_endpoint.h"
-#include "mojo/edk/system/system_impl_export.h"
-#include "mojo/public/c/system/message_pipe.h"
-#include "mojo/public/c/system/types.h"
-
-namespace mojo {
-namespace system {
-
-class ChannelEndpoint;
-class Waiter;
-
-// |MessagePipe| is the secondary object implementing a message pipe (see the
-// explanatory comment in core.cc). It is typically owned by the dispatcher(s)
-// corresponding to the local endpoints. This class is thread-safe.
-class MOJO_SYSTEM_IMPL_EXPORT MessagePipe
- : public base::RefCountedThreadSafe<MessagePipe> {
- public:
- // Creates a |MessagePipe| with two new |LocalMessagePipeEndpoint|s.
- static MessagePipe* CreateLocalLocal();
-
- // Creates a |MessagePipe| with a |LocalMessagePipeEndpoint| on port 0 and a
- // |ProxyMessagePipeEndpoint| on port 1. |*channel_endpoint| is set to the
- // (newly-created) |ChannelEndpoint| for the latter.
- static MessagePipe* CreateLocalProxy(
- scoped_refptr<ChannelEndpoint>* channel_endpoint);
-
- // Creates a |MessagePipe| with a |ProxyMessagePipeEndpoint| on port 0 and a
- // |LocalMessagePipeEndpoint| on port 1. |*channel_endpoint| is set to the
- // (newly-created) |ChannelEndpoint| for the former.
- // Note: This is really only needed in tests (outside of tests, this
- // configuration arises from a local message pipe having its port 0
- // "converted" using |ConvertLocalToProxy()|).
- static MessagePipe* CreateProxyLocal(
- scoped_refptr<ChannelEndpoint>* channel_endpoint);
-
- // Gets the other port number (i.e., 0 -> 1, 1 -> 0).
- static unsigned GetPeerPort(unsigned port);
-
- // Gets the type of the endpoint (used for assertions, etc.).
- MessagePipeEndpoint::Type GetType(unsigned port);
-
- // These are called by the dispatcher to implement its methods of
- // corresponding names. In all cases, the port |port| must be open.
- void CancelAllWaiters(unsigned port);
- void Close(unsigned port);
- // Unlike |MessagePipeDispatcher::WriteMessage()|, this does not validate its
- // arguments.
- MojoResult WriteMessage(unsigned port,
- UserPointer<const void> bytes,
- uint32_t num_bytes,
- std::vector<DispatcherTransport>* transports,
- MojoWriteMessageFlags flags);
- MojoResult ReadMessage(unsigned port,
- UserPointer<void> bytes,
- UserPointer<uint32_t> num_bytes,
- DispatcherVector* dispatchers,
- uint32_t* num_dispatchers,
- MojoReadMessageFlags flags);
- HandleSignalsState GetHandleSignalsState(unsigned port) const;
- MojoResult AddWaiter(unsigned port,
- Waiter* waiter,
- MojoHandleSignals signals,
- uint32_t context,
- HandleSignalsState* signals_state);
- void RemoveWaiter(unsigned port,
- Waiter* waiter,
- HandleSignalsState* signals_state);
-
- // This is called by the dispatcher to convert a local endpoint to a proxy
- // endpoint.
- scoped_refptr<ChannelEndpoint> ConvertLocalToProxy(unsigned port);
-
- // This is used by |Channel| to enqueue messages (typically to a
- // |LocalMessagePipeEndpoint|). Unlike |WriteMessage()|, |port| is the
- // *destination* port.
- MojoResult EnqueueMessage(unsigned port,
- scoped_ptr<MessageInTransit> message);
-
- private:
- MessagePipe();
-
- friend class base::RefCountedThreadSafe<MessagePipe>;
- virtual ~MessagePipe();
-
- // This is used internally by |WriteMessage()| and by |EnqueueMessage()|.
- // |transports| may be non-null only if it's nonempty and |message| has no
- // dispatchers attached.
- MojoResult EnqueueMessageInternal(
- unsigned port,
- scoped_ptr<MessageInTransit> message,
- std::vector<DispatcherTransport>* transports);
-
- // Helper for |EnqueueMessageInternal()|. Must be called with |lock_| held.
- MojoResult AttachTransportsNoLock(
- unsigned port,
- MessageInTransit* message,
- std::vector<DispatcherTransport>* transports);
-
- // Used by |EnqueueMessageInternal()| to handle control messages that are
- // actually meant for us.
- MojoResult HandleControlMessage(unsigned port,
- scoped_ptr<MessageInTransit> message);
-
- base::Lock lock_; // Protects the following members.
- scoped_ptr<MessagePipeEndpoint> endpoints_[2];
-
- DISALLOW_COPY_AND_ASSIGN(MessagePipe);
-};
-
-} // namespace system
-} // namespace mojo
-
-#endif // MOJO_EDK_SYSTEM_MESSAGE_PIPE_H_
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