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annotate src/os/win32/ngx_socket.h @ 9202:e88cdaa0f1ff

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AIO operations now add timers (ticket #2162). Each AIO (thread IO) operation being run is now accompanied with 1-minute timer. This timer prevents unexpected shutdown of the worker process while an AIO operation is running, and logs an alert if the operation is running for too long. This fixes "open socket left" alerts during worker processes shutdown due to pending AIO (or thread IO) operations while corresponding requests have no timers. In particular, such errors were observed while reading cache headers (ticket #2162), and with worker_shutdown_timeout.
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 29 Jan 2024 10:31:37 +0300
parents 96bdda15413a
children
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_SOCKET_H_INCLUDED_
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9 #define _NGX_SOCKET_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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16 #define NGX_WRITE_SHUTDOWN SD_SEND
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17 #define NGX_READ_SHUTDOWN SD_RECEIVE
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18 #define NGX_RDWR_SHUTDOWN SD_BOTH
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21 typedef SOCKET ngx_socket_t;
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22 typedef int socklen_t;
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25 #define ngx_socket(af, type, proto) \
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26 WSASocketW(af, type, proto, NULL, 0, WSA_FLAG_OVERLAPPED)
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27
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28 #define ngx_socket_n "WSASocketW()"
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30 int ngx_nonblocking(ngx_socket_t s);
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31 int ngx_blocking(ngx_socket_t s);
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33 #define ngx_nonblocking_n "ioctlsocket(FIONBIO)"
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34 #define ngx_blocking_n "ioctlsocket(!FIONBIO)"
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35
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36 int ngx_socket_nread(ngx_socket_t s, int *n);
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37 #define ngx_socket_nread_n "ioctlsocket(FIONREAD)"
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39 #define ngx_shutdown_socket shutdown
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40 #define ngx_shutdown_socket_n "shutdown()"
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42 #define ngx_close_socket closesocket
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43 #define ngx_close_socket_n "closesocket()"
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46 #ifndef WSAID_ACCEPTEX
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48 typedef BOOL (PASCAL FAR * LPFN_ACCEPTEX)(
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49 IN SOCKET sListenSocket,
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50 IN SOCKET sAcceptSocket,
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51 IN PVOID lpOutputBuffer,
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52 IN DWORD dwReceiveDataLength,
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53 IN DWORD dwLocalAddressLength,
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54 IN DWORD dwRemoteAddressLength,
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55 OUT LPDWORD lpdwBytesReceived,
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56 IN LPOVERLAPPED lpOverlapped
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57 );
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58
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59 #define WSAID_ACCEPTEX \
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60 {0xb5367df1,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
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61
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62 #endif
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63
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65 #ifndef WSAID_GETACCEPTEXSOCKADDRS
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66
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67 typedef VOID (PASCAL FAR * LPFN_GETACCEPTEXSOCKADDRS)(
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68 IN PVOID lpOutputBuffer,
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69 IN DWORD dwReceiveDataLength,
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70 IN DWORD dwLocalAddressLength,
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71 IN DWORD dwRemoteAddressLength,
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72 OUT struct sockaddr **LocalSockaddr,
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73 OUT LPINT LocalSockaddrLength,
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74 OUT struct sockaddr **RemoteSockaddr,
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75 OUT LPINT RemoteSockaddrLength
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76 );
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78 #define WSAID_GETACCEPTEXSOCKADDRS \
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79 {0xb5367df2,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
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80
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81 #endif
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82
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84 #ifndef WSAID_TRANSMITFILE
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85
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86 #ifndef TF_DISCONNECT
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87
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88 #define TF_DISCONNECT 1
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89 #define TF_REUSE_SOCKET 2
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90 #define TF_WRITE_BEHIND 4
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91 #define TF_USE_DEFAULT_WORKER 0
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92 #define TF_USE_SYSTEM_THREAD 16
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93 #define TF_USE_KERNEL_APC 32
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94
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95 typedef struct _TRANSMIT_FILE_BUFFERS {
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96 LPVOID Head;
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97 DWORD HeadLength;
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98 LPVOID Tail;
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99 DWORD TailLength;
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100 } TRANSMIT_FILE_BUFFERS, *PTRANSMIT_FILE_BUFFERS, FAR *LPTRANSMIT_FILE_BUFFERS;
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101
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102 #endif
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103
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104 typedef BOOL (PASCAL FAR * LPFN_TRANSMITFILE)(
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105 IN SOCKET hSocket,
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106 IN HANDLE hFile,
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107 IN DWORD nNumberOfBytesToWrite,
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108 IN DWORD nNumberOfBytesPerSend,
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109 IN LPOVERLAPPED lpOverlapped,
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110 IN LPTRANSMIT_FILE_BUFFERS lpTransmitBuffers,
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111 IN DWORD dwReserved
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112 );
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113
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114 #define WSAID_TRANSMITFILE \
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115 {0xb5367df0,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
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116
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117 #endif
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118
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119
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120 #ifndef WSAID_TRANSMITPACKETS
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121
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122 /* OpenWatcom has a swapped TP_ELEMENT_FILE and TP_ELEMENT_MEMORY definition */
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123
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124 #ifndef TP_ELEMENT_FILE
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125
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126 #ifdef _MSC_VER
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127 #pragma warning(disable:4201) /* Nonstandard extension, nameless struct/union */
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128 #endif
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129
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130 typedef struct _TRANSMIT_PACKETS_ELEMENT {
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131 ULONG dwElFlags;
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132 #define TP_ELEMENT_MEMORY 1
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133 #define TP_ELEMENT_FILE 2
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134 #define TP_ELEMENT_EOP 4
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135 ULONG cLength;
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136 union {
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137 struct {
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138 LARGE_INTEGER nFileOffset;
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139 HANDLE hFile;
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140 };
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141 PVOID pBuffer;
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142 };
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143 } TRANSMIT_PACKETS_ELEMENT, *PTRANSMIT_PACKETS_ELEMENT,
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144 FAR *LPTRANSMIT_PACKETS_ELEMENT;
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145
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146 #ifdef _MSC_VER
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147 #pragma warning(default:4201)
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148 #endif
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149
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150 #endif
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151
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152 typedef BOOL (PASCAL FAR * LPFN_TRANSMITPACKETS) (
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153 SOCKET hSocket,
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154 TRANSMIT_PACKETS_ELEMENT *lpPacketArray,
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155 DWORD nElementCount,
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156 DWORD nSendSize,
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157 LPOVERLAPPED lpOverlapped,
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158 DWORD dwFlags
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159 );
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160
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161 #define WSAID_TRANSMITPACKETS \
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162 {0xd9689da0,0x1f90,0x11d3,{0x99,0x71,0x00,0xc0,0x4f,0x68,0xc8,0x76}}
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163
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164 #endif
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165
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166
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167 #ifndef WSAID_CONNECTEX
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168
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169 typedef BOOL (PASCAL FAR * LPFN_CONNECTEX) (
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170 IN SOCKET s,
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171 IN const struct sockaddr FAR *name,
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172 IN int namelen,
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173 IN PVOID lpSendBuffer OPTIONAL,
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174 IN DWORD dwSendDataLength,
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175 OUT LPDWORD lpdwBytesSent,
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176 IN LPOVERLAPPED lpOverlapped
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177 );
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178
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179 #define WSAID_CONNECTEX \
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180 {0x25a207b9,0xddf3,0x4660,{0x8e,0xe9,0x76,0xe5,0x8c,0x74,0x06,0x3e}}
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181
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182 #endif
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183
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184
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185 #ifndef WSAID_DISCONNECTEX
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186
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187 typedef BOOL (PASCAL FAR * LPFN_DISCONNECTEX) (
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188 IN SOCKET s,
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189 IN LPOVERLAPPED lpOverlapped,
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190 IN DWORD dwFlags,
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191 IN DWORD dwReserved
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192 );
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193
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194 #define WSAID_DISCONNECTEX \
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195 {0x7fda2e11,0x8630,0x436f,{0xa0,0x31,0xf5,0x36,0xa6,0xee,0xc1,0x57}}
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196
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197 #endif
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198
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199
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200 extern LPFN_ACCEPTEX ngx_acceptex;
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201 extern LPFN_GETACCEPTEXSOCKADDRS ngx_getacceptexsockaddrs;
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202 extern LPFN_TRANSMITFILE ngx_transmitfile;
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203 extern LPFN_TRANSMITPACKETS ngx_transmitpackets;
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204 extern LPFN_CONNECTEX ngx_connectex;
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205 extern LPFN_DISCONNECTEX ngx_disconnectex;
59
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206
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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207
7444
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208 #if (NGX_HAVE_POLL && !defined POLLIN)
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209
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210 /*
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211 * WSAPoll() is only available if _WIN32_WINNT >= 0x0600.
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212 * If it is not available during compilation, we try to
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213 * load it dynamically at runtime.
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214 */
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215
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216 #define NGX_LOAD_WSAPOLL 1
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217
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218 #define POLLRDNORM 0x0100
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219 #define POLLRDBAND 0x0200
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220 #define POLLIN (POLLRDNORM | POLLRDBAND)
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221 #define POLLPRI 0x0400
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222
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223 #define POLLWRNORM 0x0010
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224 #define POLLOUT (POLLWRNORM)
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225 #define POLLWRBAND 0x0020
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226
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227 #define POLLERR 0x0001
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228 #define POLLHUP 0x0002
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229 #define POLLNVAL 0x0004
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230
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231 typedef struct pollfd {
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232
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233 SOCKET fd;
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234 SHORT events;
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235 SHORT revents;
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236
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237 } WSAPOLLFD, *PWSAPOLLFD, FAR *LPWSAPOLLFD;
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238
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239 typedef int (WSAAPI *ngx_wsapoll_pt)(
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240 LPWSAPOLLFD fdArray,
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241 ULONG fds,
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242 INT timeout
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243 );
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244
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245 extern ngx_wsapoll_pt WSAPoll;
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246 extern ngx_uint_t ngx_have_wsapoll;
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247
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248 #endif
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249
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250
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251 int ngx_tcp_push(ngx_socket_t s);
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252 #define ngx_tcp_push_n "tcp_push()"
103
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
253
6dfda4cf5200 nginx-0.0.1-2003-06-11-19:28:34 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
254
2
ffffe1499bce nginx-0.0.1-2002-08-16-19:27:03 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
255 #endif /* _NGX_SOCKET_H_INCLUDED_ */