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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 "net/socket/tcp_client_socket_win.h" | 5 #include "net/socket/tcp_client_socket_win.h" |
6 | 6 |
7 #include <mstcpip.h> | 7 #include <mstcpip.h> |
8 | 8 |
9 #include "base/basictypes.h" | 9 #include "base/basictypes.h" |
10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
11 #include "base/memory/memory_debug.h" | 11 #include "base/memory/memory_debug.h" |
12 #include "base/metrics/stats_counters.h" | 12 #include "base/metrics/stats_counters.h" |
13 #include "base/string_util.h" | 13 #include "base/string_util.h" |
14 #include "base/sys_info.h" | |
15 #include "base/win/object_watcher.h" | 14 #include "base/win/object_watcher.h" |
| 15 #include "base/win/windows_version.h" |
16 #include "net/base/address_list_net_log_param.h" | 16 #include "net/base/address_list_net_log_param.h" |
17 #include "net/base/connection_type_histograms.h" | 17 #include "net/base/connection_type_histograms.h" |
18 #include "net/base/io_buffer.h" | 18 #include "net/base/io_buffer.h" |
19 #include "net/base/ip_endpoint.h" | 19 #include "net/base/ip_endpoint.h" |
20 #include "net/base/net_errors.h" | 20 #include "net/base/net_errors.h" |
21 #include "net/base/net_log.h" | 21 #include "net/base/net_log.h" |
22 #include "net/base/net_util.h" | 22 #include "net/base/net_util.h" |
23 #include "net/base/network_change_notifier.h" | 23 #include "net/base/network_change_notifier.h" |
24 #include "net/base/sys_addrinfo.h" | 24 #include "net/base/sys_addrinfo.h" |
25 #include "net/base/winsock_init.h" | 25 #include "net/base/winsock_init.h" |
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49 // Increase the socket buffer sizes from the default sizes for WinXP. In | 49 // Increase the socket buffer sizes from the default sizes for WinXP. In |
50 // performance testing, there is substantial benefit by increasing from 8KB | 50 // performance testing, there is substantial benefit by increasing from 8KB |
51 // to 64KB. | 51 // to 64KB. |
52 // See also: | 52 // See also: |
53 // http://support.microsoft.com/kb/823764/EN-US | 53 // http://support.microsoft.com/kb/823764/EN-US |
54 // On Vista, if we manually set these sizes, Vista turns off its receive | 54 // On Vista, if we manually set these sizes, Vista turns off its receive |
55 // window auto-tuning feature. | 55 // window auto-tuning feature. |
56 // http://blogs.msdn.com/wndp/archive/2006/05/05/Winhec-blog-tcpip-2.aspx | 56 // http://blogs.msdn.com/wndp/archive/2006/05/05/Winhec-blog-tcpip-2.aspx |
57 // Since Vista's auto-tune is better than any static value we can could set, | 57 // Since Vista's auto-tune is better than any static value we can could set, |
58 // only change these on pre-vista machines. | 58 // only change these on pre-vista machines. |
59 int32 major_version, minor_version, fix_version; | 59 if (base::win::GetVersion() < base::win::VERSION_VISTA) { |
60 base::SysInfo::OperatingSystemVersionNumbers(&major_version, &minor_version, | |
61 &fix_version); | |
62 if (major_version < 6) { | |
63 const int32 kSocketBufferSize = 64 * 1024; | 60 const int32 kSocketBufferSize = 64 * 1024; |
64 SetSocketReceiveBufferSize(socket, kSocketBufferSize); | 61 SetSocketReceiveBufferSize(socket, kSocketBufferSize); |
65 SetSocketSendBufferSize(socket, kSocketBufferSize); | 62 SetSocketSendBufferSize(socket, kSocketBufferSize); |
66 } | 63 } |
67 | 64 |
68 // Disable Nagle. | 65 // Disable Nagle. |
69 // The Nagle implementation on windows is governed by RFC 896. The idea | 66 // The Nagle implementation on windows is governed by RFC 896. The idea |
70 // behind Nagle is to reduce small packets on the network. When Nagle is | 67 // behind Nagle is to reduce small packets on the network. When Nagle is |
71 // enabled, if a partial packet has been sent, the TCP stack will disallow | 68 // enabled, if a partial packet has been sent, the TCP stack will disallow |
72 // further *partial* packets until an ACK has been received from the other | 69 // further *partial* packets until an ACK has been received from the other |
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896 use_history_.set_was_used_to_convey_data(); | 893 use_history_.set_was_used_to_convey_data(); |
897 net_log_.AddByteTransferEvent(NetLog::TYPE_SOCKET_BYTES_SENT, num_bytes, | 894 net_log_.AddByteTransferEvent(NetLog::TYPE_SOCKET_BYTES_SENT, num_bytes, |
898 core_->write_buffer_.buf); | 895 core_->write_buffer_.buf); |
899 } | 896 } |
900 } | 897 } |
901 core_->write_iobuffer_ = NULL; | 898 core_->write_iobuffer_ = NULL; |
902 DoWriteCallback(rv); | 899 DoWriteCallback(rv); |
903 } | 900 } |
904 | 901 |
905 } // namespace net | 902 } // namespace net |
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