Index: media/midi/midi_manager.h |
diff --git a/media/midi/midi_manager.h b/media/midi/midi_manager.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..131b42d80d31e8ad1748f70f8b69f1541e412e19 |
--- /dev/null |
+++ b/media/midi/midi_manager.h |
@@ -0,0 +1,56 @@ |
+// Copyright (c) 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 MEDIA_MIDI_MIDI_MANAGER_H_ |
+#define MEDIA_MIDI_MIDI_MANAGER_H_ |
+ |
+#include "base/basictypes.h" |
+#include "base/synchronization/lock.h" |
+#include "media/base/media_export.h" |
+#include <set> |
+ |
+namespace media { |
+ |
+// Manages access to all MIDI hardware. |
+class MEDIA_EXPORT MIDIManager { |
+ public: |
+ static MIDIManager* Create(); |
+ |
+ MIDIManager(); |
+ virtual ~MIDIManager(); |
+ |
+ class Client { |
+ public: |
+ virtual ~Client() {} |
+ virtual void ReceiveMIDIData( |
+ int port_index, |
+ const uint8* data, |
+ size_t length, |
+ double time_stamp) = 0; |
+ }; |
+ |
+ void AddClient(Client* client); |
+ void RemoveClient(Client* client); |
+ |
+ protected: |
+ // Dispatches to all clients. |
+ void ReceiveMIDIData( |
+ int port_index, |
+ const uint8* data, |
+ size_t length, |
+ double time_stamp); |
+ |
+ // Keeps track of all clients who wish to receive MIDI data. |
+ typedef std::set<Client*> ClientList; |
+ ClientList clients_; |
+ |
+ // Protects access to our clients. |
+ base::Lock clients_lock_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(MIDIManager); |
+}; |
+ |
+} // namespace media |
+ |
+#endif // MEDIA_MIDI_MIDI_MANAGER_H_ |