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

Issue 814543006: Move //mojo/{public, edk} underneath //third_party (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 11 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 df0501484e5715eb743733b2b739cc77803b49b6..0000000000000000000000000000000000000000
--- a/mojo/edk/system/message_pipe.h
+++ /dev/null
@@ -1,148 +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 <stddef.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/embedder/platform_handle_vector.h"
-#include "mojo/edk/system/channel_endpoint_client.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 Awakable;
-class Channel;
-class ChannelEndpoint;
-class MessageInTransitQueue;
-
-// |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 ChannelEndpointClient {
- 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);
-
- // Similar to |CreateLocalProxy()|, except that it'll do so from an existing
- // |ChannelEndpoint| (whose |ReplaceClient()| it'll call) and take
- // |message_queue|'s contents as already-received incoming messages. If
- // |channel_endpoint| is null, this will create a "half-open" message pipe.
- static MessagePipe* CreateLocalProxyFromExisting(
- MessageInTransitQueue* message_queue,
- 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);
-
- // Used by |MessagePipeDispatcher::Deserialize()|. Returns true on success (in
- // which case, |*message_pipe|/|*port| are set appropriately) and false on
- // failure (in which case |*message_pipe| may or may not be set to null).
- static bool Deserialize(Channel* channel,
- const void* source,
- size_t size,
- scoped_refptr<MessagePipe>* message_pipe,
- 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 CancelAllAwakables(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 AddAwakable(unsigned port,
- Awakable* awakable,
- MojoHandleSignals signals,
- uint32_t context,
- HandleSignalsState* signals_state);
- void RemoveAwakable(unsigned port,
- Awakable* awakable,
- HandleSignalsState* signals_state);
- void StartSerialize(unsigned port,
- Channel* channel,
- size_t* max_size,
- size_t* max_platform_handles);
- bool EndSerialize(unsigned port,
- Channel* channel,
- void* destination,
- size_t* actual_size,
- embedder::PlatformHandleVector* platform_handles);
-
- // |ChannelEndpointClient| methods:
- bool OnReadMessage(unsigned port, MessageInTransit* message) override;
- void OnDetachFromChannel(unsigned port) override;
-
- private:
- MessagePipe();
- ~MessagePipe() override;
-
- // This is used internally by |WriteMessage()| and by |OnReadMessage()|.
- // |transports| may be non-null only if it's nonempty and |message| has no
- // dispatchers attached. Must be called with |lock_| held.
- MojoResult EnqueueMessageNoLock(unsigned port,
- scoped_ptr<MessageInTransit> message,
- std::vector<DispatcherTransport>* transports);
-
- // Helper for |EnqueueMessageNoLock()|. Must be called with |lock_| held.
- MojoResult AttachTransportsNoLock(
- unsigned port,
- MessageInTransit* message,
- std::vector<DispatcherTransport>* transports);
-
- 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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