Switch audio synchronization from sleep() based to select() based.

base/sync_socket.h

 // Copyright (c) 2012 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 BASE_SYNC_SOCKET_H_
 #define BASE_SYNC_SOCKET_H_
 
 // A socket abstraction used for sending and receiving plain
 // data.  Because the receiving is blocking, they can be used to perform
 // rudimentary cross-process synchronization with low latency.
@@ skipping 39 matching lines @@
   // buffer is a pointer to the data to send.
   // length is the length of the data to send (must be non-zero).
   // Returns the number of bytes sent, or 0 upon failure.
   virtual size_t Send(const void* buffer, size_t length);
 
   // Receives a message from an SyncSocket.
   // buffer is a pointer to the buffer to receive data.
   // length is the number of bytes of data to receive (must be non-zero).
   // Returns the number of bytes received, or 0 upon failure.
   virtual size_t Receive(void* buffer, size_t length);
+  virtual size_t Receive(void* buffer, size_t length, base::TimeDelta timeout);

[henrika (OOO until Aug 14), 2013/08/20 07:50:30]

Extend comment for new parameter.

[DaleCurtis, 2013/09/11 01:16:03]

Done.

 
   // Returns the number of bytes available. If non-zero, Receive() will not
   // not block when called. NOTE: Some implementations cannot reliably
   // determine the number of bytes available so avoid using the returned
   // size as a promise and simply test against zero.
   size_t Peek();
 
   // Extracts the contained handle.  Used for transferring between
   // processes.
   Handle handle() const { return handle_; }
@@ skipping 51 matching lines @@
 
 #if defined(OS_WIN) && !defined(COMPONENT_BUILD)
 // TODO(cpu): remove this once chrome is split in two dlls.
 __declspec(selectany)
     const SyncSocket::Handle SyncSocket::kInvalidHandle = INVALID_HANDLE_VALUE;
 #endif
 
 }  // namespace base
 
 #endif  // BASE_SYNC_SOCKET_H_