Steve Block | 643ca78 | 2009-12-15 10:12:09 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 Google Inc. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are |
| 6 | * met: |
| 7 | * |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above |
| 11 | * copyright notice, this list of conditions and the following disclaimer |
| 12 | * in the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * * Neither the name of Google Inc. nor the names of its |
| 15 | * contributors may be used to endorse or promote products derived from |
| 16 | * this software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #ifndef PlatformMessagePortChannel_h |
| 32 | #define PlatformMessagePortChannel_h |
| 33 | |
Kristian Monsen | 6c2af94 | 2010-05-21 16:53:46 +0100 | [diff] [blame] | 34 | #include "WebMessagePortChannelClient.h" |
Steve Block | 643ca78 | 2009-12-15 10:12:09 +0000 | [diff] [blame] | 35 | |
| 36 | #include "MessagePortChannel.h" |
Steve Block | 643ca78 | 2009-12-15 10:12:09 +0000 | [diff] [blame] | 37 | #include <wtf/PassRefPtr.h> |
| 38 | #include <wtf/Threading.h> |
| 39 | |
| 40 | namespace WebKit { |
| 41 | class WebMessagePortChannel; |
| 42 | } |
| 43 | |
| 44 | namespace WebCore { |
| 45 | |
| 46 | class MessagePort; |
| 47 | |
| 48 | // PlatformMessagePortChannel is a platform-dependent interface to the remote side of a message channel. |
Steve Block | 2bde8e4 | 2011-05-25 19:08:45 +0100 | [diff] [blame] | 49 | class PlatformMessagePortChannel : public ThreadSafeRefCounted<PlatformMessagePortChannel>, |
Steve Block | 643ca78 | 2009-12-15 10:12:09 +0000 | [diff] [blame] | 50 | public WebKit::WebMessagePortChannelClient { |
| 51 | public: |
| 52 | static void createChannel(PassRefPtr<MessagePort>, PassRefPtr<MessagePort>); |
| 53 | static PassRefPtr<PlatformMessagePortChannel> create(); |
| 54 | static PassRefPtr<PlatformMessagePortChannel> create(WebKit::WebMessagePortChannel*); |
| 55 | |
| 56 | // APIs delegated from MessagePortChannel.h |
| 57 | bool entangleIfOpen(MessagePort*); |
| 58 | void disentangle(); |
| 59 | void postMessageToRemote(PassOwnPtr<MessagePortChannel::EventData>); |
| 60 | bool tryGetMessageFromRemote(OwnPtr<MessagePortChannel::EventData>&); |
| 61 | void close(); |
| 62 | bool isConnectedTo(MessagePort* port); |
| 63 | bool hasPendingActivity(); |
| 64 | |
| 65 | // Releases ownership of the contained web channel. |
| 66 | WebKit::WebMessagePortChannel* webChannelRelease(); |
| 67 | |
| 68 | ~PlatformMessagePortChannel(); |
| 69 | |
| 70 | private: |
| 71 | PlatformMessagePortChannel(); |
| 72 | PlatformMessagePortChannel(WebKit::WebMessagePortChannel*); |
| 73 | |
| 74 | void setEntangledChannel(PassRefPtr<PlatformMessagePortChannel>); |
| 75 | |
| 76 | // WebKit::WebMessagePortChannelClient implementation |
| 77 | virtual void messageAvailable(); |
| 78 | |
| 79 | // Mutex used to ensure exclusive access to the object internals. |
| 80 | Mutex m_mutex; |
| 81 | |
| 82 | // Pointer to our entangled pair - cleared when close() is called. |
| 83 | RefPtr<PlatformMessagePortChannel> m_entangledChannel; |
| 84 | |
| 85 | // The port we are connected to - this is the port that is notified when new messages arrive. |
| 86 | MessagePort* m_localPort; |
| 87 | |
| 88 | WebKit::WebMessagePortChannel* m_webChannel; |
| 89 | }; |
| 90 | |
| 91 | } // namespace WebCore |
| 92 | |
| 93 | #endif // PlatformMessagePortChannel_h |