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annotate Modules/socketmodule.h @ 66978:aed2bbafa550 3.1

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Blocked revisions 87324 via svnmerge ........ r87324 | r.david.murray | 2010-12-16 14:08:51 -0500 (Thu, 16 Dec 2010) | 9 lines #10719: restore messages generated on invalid compileall args Before the introduction of filename arguments to compileall it gave semi useful messages about not being able to 'list' names that weren't valid directories. This fix restores that behavior. In addition to the test for this case, the patch also adds a test for the default behavior of compileall when no arguments are provided, and fixes a bug in one of the previously added tests. ........
author R. David Murray <rdmurray@bitdance.com>
date Thu, 16 Dec 2010 19:10:16 +0000
parents 5c89f9571ba5
children 3d9a86b8cc98
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1 /* Socket module header file */
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2
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3 /* Includes needed for the sockaddr_* symbols below */
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4 #ifndef MS_WINDOWS
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5 #ifdef __VMS
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6 # include <socket.h>
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7 # else
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8 # include <sys/socket.h>
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9 # endif
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10 # include <netinet/in.h>
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11 # if !(defined(__CYGWIN__) || (defined(PYOS_OS2) && defined(PYCC_VACPP)))
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12 # include <netinet/tcp.h>
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13 # endif
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14
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15 #else /* MS_WINDOWS */
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16 # include <winsock2.h>
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17 # include <ws2tcpip.h>
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18 /* VC6 is shipped with old platform headers, and does not have MSTcpIP.h
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19 * Separate SDKs have all the functions we want, but older ones don't have
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20 * any version information.
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21 * I use SIO_GET_MULTICAST_FILTER to detect a decent SDK.
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22 */
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23 # ifdef SIO_GET_MULTICAST_FILTER
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24 # include <MSTcpIP.h> /* for SIO_RCVALL */
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25 # define HAVE_ADDRINFO
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26 # define HAVE_SOCKADDR_STORAGE
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27 # define HAVE_GETADDRINFO
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28 # define HAVE_GETNAMEINFO
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29 # define ENABLE_IPV6
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30 # else
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31 typedef int socklen_t;
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32 # endif /* IPPROTO_IPV6 */
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33 #endif /* MS_WINDOWS */
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34
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35 #ifdef HAVE_SYS_UN_H
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36 # include <sys/un.h>
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37 #else
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38 # undef AF_UNIX
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39 #endif
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41 #ifdef HAVE_LINUX_NETLINK_H
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42 # ifdef HAVE_ASM_TYPES_H
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43 # include <asm/types.h>
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44 # endif
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45 # include <linux/netlink.h>
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46 #else
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47 # undef AF_NETLINK
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48 #endif
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50 #ifdef HAVE_BLUETOOTH_BLUETOOTH_H
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51 #include <bluetooth/bluetooth.h>
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52 #include <bluetooth/rfcomm.h>
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53 #include <bluetooth/l2cap.h>
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54 #include <bluetooth/sco.h>
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55 #include <bluetooth/hci.h>
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56 #endif
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57
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58 #ifdef HAVE_BLUETOOTH_H
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59 #include <bluetooth.h>
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60 #endif
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62 #ifdef HAVE_NETPACKET_PACKET_H
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63 # include <sys/ioctl.h>
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64 # include <net/if.h>
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65 # include <netpacket/packet.h>
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66 #endif
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67
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68 #ifdef HAVE_LINUX_TIPC_H
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69 # include <linux/tipc.h>
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70 #endif
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72 #ifndef Py__SOCKET_H
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73 #define Py__SOCKET_H
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74 #ifdef __cplusplus
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75 extern "C" {
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76 #endif
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77
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78 /* Python module and C API name */
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79 #define PySocket_MODULE_NAME "_socket"
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80 #define PySocket_CAPI_NAME "CAPI"
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81 #define PySocket_CAPSULE_NAME PySocket_MODULE_NAME "." PySocket_CAPI_NAME
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82
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83 /* Abstract the socket file descriptor type */
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84 #ifdef MS_WINDOWS
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85 typedef SOCKET SOCKET_T;
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86 # ifdef MS_WIN64
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87 # define SIZEOF_SOCKET_T 8
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88 # else
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89 # define SIZEOF_SOCKET_T 4
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90 # endif
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91 #else
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92 typedef int SOCKET_T;
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93 # define SIZEOF_SOCKET_T SIZEOF_INT
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94 #endif
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96 #if SIZEOF_SOCKET_T <= SIZEOF_LONG
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97 #define PyLong_FromSocket_t(fd) PyLong_FromLong((SOCKET_T)(fd))
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98 #define PyLong_AsSocket_t(fd) (SOCKET_T)PyLong_AsLong(fd)
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99 #else
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100 #define PyLong_FromSocket_t(fd) PyLong_FromLongLong((SOCKET_T)(fd))
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101 #define PyLong_AsSocket_t(fd) (SOCKET_T)PyLong_AsLongLong(fd)
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102 #endif
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103
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104 /* Socket address */
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105 typedef union sock_addr {
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106 struct sockaddr_in in;
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107 #ifdef AF_UNIX
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108 struct sockaddr_un un;
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109 #endif
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110 #ifdef AF_NETLINK
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111 struct sockaddr_nl nl;
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112 #endif
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113 #ifdef ENABLE_IPV6
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114 struct sockaddr_in6 in6;
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115 struct sockaddr_storage storage;
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116 #endif
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117 #ifdef HAVE_BLUETOOTH_BLUETOOTH_H
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118 struct sockaddr_l2 bt_l2;
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119 struct sockaddr_rc bt_rc;
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120 struct sockaddr_sco bt_sco;
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121 struct sockaddr_hci bt_hci;
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122 #endif
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123 #ifdef HAVE_NETPACKET_PACKET_H
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124 struct sockaddr_ll ll;
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125 #endif
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126 } sock_addr_t;
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127
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128 /* The object holding a socket. It holds some extra information,
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129 like the address family, which is used to decode socket address
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130 arguments properly. */
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131
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132 typedef struct {
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133 PyObject_HEAD
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134 SOCKET_T sock_fd; /* Socket file descriptor */
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135 int sock_family; /* Address family, e.g., AF_INET */
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136 int sock_type; /* Socket type, e.g., SOCK_STREAM */
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137 int sock_proto; /* Protocol type, usually 0 */
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138 PyObject *(*errorhandler)(void); /* Error handler; checks
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139 errno, returns NULL and
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140 sets a Python exception */
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141 double sock_timeout; /* Operation timeout in seconds;
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142 0.0 means non-blocking */
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143 } PySocketSockObject;
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144
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145 /* --- C API ----------------------------------------------------*/
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146
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147 /* Short explanation of what this C API export mechanism does
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148 and how it works:
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149
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150 The _ssl module needs access to the type object defined in
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151 the _socket module. Since cross-DLL linking introduces a lot of
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152 problems on many platforms, the "trick" is to wrap the
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153 C API of a module in a struct which then gets exported to
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154 other modules via a PyCapsule.
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155
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156 The code in socketmodule.c defines this struct (which currently
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157 only contains the type object reference, but could very
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158 well also include other C APIs needed by other modules)
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159 and exports it as PyCapsule via the module dictionary
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160 under the name "CAPI".
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161
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162 Other modules can now include the socketmodule.h file
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163 which defines the needed C APIs to import and set up
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164 a static copy of this struct in the importing module.
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165
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166 After initialization, the importing module can then
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167 access the C APIs from the _socket module by simply
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168 referring to the static struct, e.g.
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169
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170 Load _socket module and its C API; this sets up the global
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171 PySocketModule:
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172
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173 if (PySocketModule_ImportModuleAndAPI())
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174 return;
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175
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176
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177 Now use the C API as if it were defined in the using
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178 module:
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179
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180 if (!PyArg_ParseTuple(args, "O!|zz:ssl",
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181
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182 PySocketModule.Sock_Type,
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183
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184 (PyObject*)&Sock,
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185 &key_file, &cert_file))
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186 return NULL;
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187
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188 Support could easily be extended to export more C APIs/symbols
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189 this way. Currently, only the type object is exported,
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190 other candidates would be socket constructors and socket
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191 access functions.
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192
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193 */
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194
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195 /* C API for usage by other Python modules */
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196 typedef struct {
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197 PyTypeObject *Sock_Type;
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198 PyObject *error;
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199 } PySocketModule_APIObject;
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200
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201 #define PySocketModule_ImportModuleAndAPI() PyCapsule_Import(PySocket_CAPSULE_NAME, 1)
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202
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203 #ifdef __cplusplus
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204 }
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205 #endif
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206 #endif /* !Py__SOCKET_H */