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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/renderer_host/media/audio_sync_reader.h" | 5 #include "content/browser/renderer_host/media/audio_sync_reader.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "base/command_line.h" | 9 #include "base/command_line.h" |
10 #include "base/memory/shared_memory.h" | 10 #include "base/memory/shared_memory.h" |
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76 socket_->Close(); | 76 socket_->Close(); |
77 } | 77 } |
78 | 78 |
79 bool AudioSyncReader::Init() { | 79 bool AudioSyncReader::Init() { |
80 socket_.reset(new base::CancelableSyncSocket()); | 80 socket_.reset(new base::CancelableSyncSocket()); |
81 foreign_socket_.reset(new base::CancelableSyncSocket()); | 81 foreign_socket_.reset(new base::CancelableSyncSocket()); |
82 return base::CancelableSyncSocket::CreatePair(socket_.get(), | 82 return base::CancelableSyncSocket::CreatePair(socket_.get(), |
83 foreign_socket_.get()); | 83 foreign_socket_.get()); |
84 } | 84 } |
85 | 85 |
86 #if defined(OS_WIN) | 86 bool AudioSyncReader::PrepareForeignSocket( |
87 bool AudioSyncReader::PrepareForeignSocketHandle( | |
88 base::ProcessHandle process_handle, | 87 base::ProcessHandle process_handle, |
89 base::SyncSocket::Handle* foreign_handle) { | 88 base::SyncSocket::TransitDescriptor * descriptor) { |
90 ::DuplicateHandle(GetCurrentProcess(), foreign_socket_->handle(), | 89 return foreign_socket_->PrepareTransitDescriptor( |
91 process_handle, foreign_handle, | 90 process_handle, descriptor); |
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92 0, FALSE, DUPLICATE_SAME_ACCESS); | |
93 return (*foreign_handle != 0); | |
94 } | 91 } |
95 #else | |
96 bool AudioSyncReader::PrepareForeignSocketHandle( | |
97 base::ProcessHandle process_handle, | |
98 base::FileDescriptor* foreign_handle) { | |
99 foreign_handle->fd = foreign_socket_->handle(); | |
100 foreign_handle->auto_close = false; | |
101 return (foreign_handle->fd != -1); | |
102 } | |
103 #endif | |
104 | 92 |
105 bool AudioSyncReader::WaitUntilDataIsReady() { | 93 bool AudioSyncReader::WaitUntilDataIsReady() { |
106 base::TimeDelta timeout = maximum_wait_time_; | 94 base::TimeDelta timeout = maximum_wait_time_; |
107 const base::TimeTicks start_time = base::TimeTicks::Now(); | 95 const base::TimeTicks start_time = base::TimeTicks::Now(); |
108 const base::TimeTicks finish_time = start_time + timeout; | 96 const base::TimeTicks finish_time = start_time + timeout; |
109 | 97 |
110 // Check if data is ready and if not, wait a reasonable amount of time for it. | 98 // Check if data is ready and if not, wait a reasonable amount of time for it. |
111 // | 99 // |
112 // Data readiness is achieved via parallel counters, one on the renderer side | 100 // Data readiness is achieved via parallel counters, one on the renderer side |
113 // and one here. Every time a buffer is requested via UpdatePendingBytes(), | 101 // and one here. Every time a buffer is requested via UpdatePendingBytes(), |
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147 base::TimeDelta::FromMilliseconds(1), | 135 base::TimeDelta::FromMilliseconds(1), |
148 base::TimeDelta::FromMilliseconds(1000), | 136 base::TimeDelta::FromMilliseconds(1000), |
149 50); | 137 50); |
150 return false; | 138 return false; |
151 } | 139 } |
152 | 140 |
153 return true; | 141 return true; |
154 } | 142 } |
155 | 143 |
156 } // namespace content | 144 } // namespace content |
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