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31 #ifndef PlatformMessagePortChannel_h
32 #define PlatformMessagePortChannel_h
34 #include "WebMessagePortChannelClient.h"
36 #include "MessagePortChannel.h"
37 #include <wtf/PassRefPtr.h>
38 #include <wtf/Threading.h>
41 class WebMessagePortChannel;
48 // PlatformMessagePortChannel is a platform-dependent interface to the remote side of a message channel.
49 class PlatformMessagePortChannel : public ThreadSafeRefCounted<PlatformMessagePortChannel>,
50 public WebKit::WebMessagePortChannelClient {
52 static void createChannel(PassRefPtr<MessagePort>, PassRefPtr<MessagePort>);
53 static PassRefPtr<PlatformMessagePortChannel> create();
54 static PassRefPtr<PlatformMessagePortChannel> create(WebKit::WebMessagePortChannel*);
56 // APIs delegated from MessagePortChannel.h
57 bool entangleIfOpen(MessagePort*);
59 void postMessageToRemote(PassOwnPtr<MessagePortChannel::EventData>);
60 bool tryGetMessageFromRemote(OwnPtr<MessagePortChannel::EventData>&);
62 bool isConnectedTo(MessagePort* port);
63 bool hasPendingActivity();
65 // Releases ownership of the contained web channel.
66 WebKit::WebMessagePortChannel* webChannelRelease();
68 virtual ~PlatformMessagePortChannel();
71 PlatformMessagePortChannel();
72 PlatformMessagePortChannel(WebKit::WebMessagePortChannel*);
74 void setEntangledChannel(PassRefPtr<PlatformMessagePortChannel>);
76 // WebKit::WebMessagePortChannelClient implementation
77 virtual void messageAvailable();
79 // Mutex used to ensure exclusive access to the object internals.
82 // Pointer to our entangled pair - cleared when close() is called.
83 RefPtr<PlatformMessagePortChannel> m_entangledChannel;
85 // The port we are connected to - this is the port that is notified when new messages arrive.
86 MessagePort* m_localPort;
88 WebKit::WebMessagePortChannel* m_webChannel;
91 } // namespace WebCore
93 #endif // PlatformMessagePortChannel_h