Mercurial > cpython-lru_cache-weakref
annotate Lib/socket.py @ 55725:ec8d25e0500a legacy-trunk
#6677: mention "deleting" as an alias for removing files.
| author | Georg Brandl <georg@python.org> |
|---|---|
| date | Mon, 24 Aug 2009 17:24:27 +0000 |
| parents | fbf8b791ce81 |
| children | 9e718d8f71e8 |
| rev | line source |
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1 # Wrapper module for _socket, providing some additional facilities |
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2 # implemented in Python. |
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3 |
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4 """\ |
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5 This module provides socket operations and some related functions. |
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6 On Unix, it supports IP (Internet Protocol) and Unix domain sockets. |
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Whitespace normalization.
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7 On other systems, it only supports IP. Functions specific for a |
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8 socket are available as methods of the socket object. |
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9 |
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10 Functions: |
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11 |
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12 socket() -- create a new socket object |
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13 socketpair() -- create a pair of new socket objects [*] |
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14 fromfd() -- create a socket object from an open file descriptor [*] |
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15 gethostname() -- return the current hostname |
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16 gethostbyname() -- map a hostname to its IP number |
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17 gethostbyaddr() -- map an IP number or hostname to DNS info |
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18 getservbyname() -- map a service name and a protocol name to a port number |
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19 getprotobyname() -- map a protocol name (e.g. 'tcp') to a number |
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20 ntohs(), ntohl() -- convert 16, 32 bit int from network to host byte order |
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21 htons(), htonl() -- convert 16, 32 bit int from host to network byte order |
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22 inet_aton() -- convert IP addr string (123.45.67.89) to 32-bit packed format |
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23 inet_ntoa() -- convert 32-bit packed format IP to string (123.45.67.89) |
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24 ssl() -- secure socket layer support (only available if configured) |
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25 socket.getdefaulttimeout() -- get the default timeout value |
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26 socket.setdefaulttimeout() -- set the default timeout value |
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27 create_connection() -- connects to an address, with an optional timeout |
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28 |
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29 [*] not available on all platforms! |
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30 |
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31 Special objects: |
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32 |
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33 SocketType -- type object for socket objects |
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34 error -- exception raised for I/O errors |
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35 has_ipv6 -- boolean value indicating if IPv6 is supported |
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36 |
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37 Integer constants: |
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38 |
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39 AF_INET, AF_UNIX -- socket domains (first argument to socket() call) |
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40 SOCK_STREAM, SOCK_DGRAM, SOCK_RAW -- socket types (second argument) |
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41 |
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42 Many other constants may be defined; these may be used in calls to |
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43 the setsockopt() and getsockopt() methods. |
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44 """ |
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45 |
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46 import _socket |
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47 from _socket import * |
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48 from functools import partial |
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49 from new import instancemethod |
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50 |
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51 try: |
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52 import _ssl |
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53 except ImportError: |
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54 # no SSL support |
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55 pass |
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56 else: |
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57 def ssl(sock, keyfile=None, certfile=None): |
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58 # we do an internal import here because the ssl |
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59 # module imports the socket module |
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60 import ssl as _realssl |
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61 warnings.warn("socket.ssl() is deprecated. Use ssl.wrap_socket() instead.", |
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62 DeprecationWarning, stacklevel=2) |
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63 return _realssl.sslwrap_simple(sock, keyfile, certfile) |
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64 |
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65 # we need to import the same constants we used to... |
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66 from _ssl import SSLError as sslerror |
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67 from _ssl import \ |
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68 RAND_add, \ |
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69 RAND_egd, \ |
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70 RAND_status, \ |
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71 SSL_ERROR_ZERO_RETURN, \ |
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72 SSL_ERROR_WANT_READ, \ |
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73 SSL_ERROR_WANT_WRITE, \ |
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74 SSL_ERROR_WANT_X509_LOOKUP, \ |
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75 SSL_ERROR_SYSCALL, \ |
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76 SSL_ERROR_SSL, \ |
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77 SSL_ERROR_WANT_CONNECT, \ |
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78 SSL_ERROR_EOF, \ |
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79 SSL_ERROR_INVALID_ERROR_CODE |
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80 |
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81 import os, sys, warnings |
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82 |
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83 try: |
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84 from cStringIO import StringIO |
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85 except ImportError: |
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86 from StringIO import StringIO |
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87 |
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88 try: |
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89 import errno |
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90 except ImportError: |
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91 errno = None |
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92 EBADF = getattr(errno, 'EBADF', 9) |
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93 EINTR = getattr(errno, 'EINTR', 4) |
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94 |
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95 __all__ = ["getfqdn", "create_connection"] |
| 16613 | 96 __all__.extend(os._get_exports_list(_socket)) |
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97 |
| 16613 | 98 |
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99 _realsocket = socket |
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100 |
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101 # WSA error codes |
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102 if sys.platform.lower().startswith("win"): |
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103 errorTab = {} |
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104 errorTab[10004] = "The operation was interrupted." |
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105 errorTab[10009] = "A bad file handle was passed." |
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106 errorTab[10013] = "Permission denied." |
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107 errorTab[10014] = "A fault occurred on the network??" # WSAEFAULT |
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108 errorTab[10022] = "An invalid operation was attempted." |
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109 errorTab[10035] = "The socket operation would block" |
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110 errorTab[10036] = "A blocking operation is already in progress." |
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111 errorTab[10048] = "The network address is in use." |
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112 errorTab[10054] = "The connection has been reset." |
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113 errorTab[10058] = "The network has been shut down." |
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114 errorTab[10060] = "The operation timed out." |
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115 errorTab[10061] = "Connection refused." |
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116 errorTab[10063] = "The name is too long." |
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117 errorTab[10064] = "The host is down." |
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118 errorTab[10065] = "The host is unreachable." |
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119 __all__.append("errorTab") |
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120 |
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121 |
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122 |
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123 def getfqdn(name=''): |
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124 """Get fully qualified domain name from name. |
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125 |
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126 An empty argument is interpreted as meaning the local host. |
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127 |
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128 First the hostname returned by gethostbyaddr() is checked, then |
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129 possibly existing aliases. In case no FQDN is available, hostname |
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130 from gethostname() is returned. |
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131 """ |
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132 name = name.strip() |
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133 if not name or name == '0.0.0.0': |
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134 name = gethostname() |
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135 try: |
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136 hostname, aliases, ipaddrs = gethostbyaddr(name) |
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137 except error: |
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138 pass |
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139 else: |
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140 aliases.insert(0, hostname) |
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141 for name in aliases: |
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142 if '.' in name: |
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143 break |
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144 else: |
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145 name = hostname |
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146 return name |
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147 |
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148 |
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149 _socketmethods = ( |
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150 'bind', 'connect', 'connect_ex', 'fileno', 'listen', |
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151 'getpeername', 'getsockname', 'getsockopt', 'setsockopt', |
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152 'sendall', 'setblocking', |
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153 'settimeout', 'gettimeout', 'shutdown') |
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154 |
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155 if os.name == "nt": |
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156 _socketmethods = _socketmethods + ('ioctl',) |
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157 |
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Patch #734231: Update RiscOS support. In particular, correct
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158 if sys.platform == "riscos": |
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159 _socketmethods = _socketmethods + ('sleeptaskw',) |
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160 |
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161 # All the method names that must be delegated to either the real socket |
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162 # object or the _closedsocket object. |
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163 _delegate_methods = ("recv", "recvfrom", "recv_into", "recvfrom_into", |
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164 "send", "sendto") |
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165 |
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166 class _closedsocket(object): |
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167 __slots__ = [] |
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168 def _dummy(*args): |
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169 raise error(EBADF, 'Bad file descriptor') |
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170 # All _delegate_methods must also be initialized here. |
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171 send = recv = recv_into = sendto = recvfrom = recvfrom_into = _dummy |
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172 __getattr__ = _dummy |
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173 |
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Bug #978833: Close https sockets by releasing the _ssl object.
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174 # Wrapper around platform socket objects. This implements |
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175 # a platform-independent dup() functionality. The |
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176 # implementation currently relies on reference counting |
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177 # to close the underlying socket object. |
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178 class _socketobject(object): |
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179 |
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180 __doc__ = _realsocket.__doc__ |
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181 |
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182 __slots__ = ["_sock", "__weakref__"] + list(_delegate_methods) |
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183 |
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184 def __init__(self, family=AF_INET, type=SOCK_STREAM, proto=0, _sock=None): |
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185 if _sock is None: |
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186 _sock = _realsocket(family, type, proto) |
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187 self._sock = _sock |
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188 for method in _delegate_methods: |
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189 setattr(self, method, getattr(_sock, method)) |
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190 |
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191 def close(self): |
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192 self._sock = _closedsocket() |
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193 dummy = self._sock._dummy |
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194 for method in _delegate_methods: |
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195 setattr(self, method, dummy) |
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196 close.__doc__ = _realsocket.close.__doc__ |
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197 |
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198 def accept(self): |
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199 sock, addr = self._sock.accept() |
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200 return _socketobject(_sock=sock), addr |
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201 accept.__doc__ = _realsocket.accept.__doc__ |
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202 |
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203 def dup(self): |
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204 """dup() -> socket object |
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205 |
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206 Return a new socket object connected to the same system resource.""" |
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207 return _socketobject(_sock=self._sock) |
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208 |
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209 def makefile(self, mode='r', bufsize=-1): |
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210 """makefile([mode[, bufsize]]) -> file object |
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211 |
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212 Return a regular file object corresponding to the socket. The mode |
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213 and bufsize arguments are as for the built-in open() function.""" |
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214 return _fileobject(self._sock, mode, bufsize) |
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Whitespace normalization.
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215 |
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Correct API design mistake from rev. 43126: make socket attributes readonly properties.
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216 family = property(lambda self: self._sock.family, doc="the socket family") |
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217 type = property(lambda self: self._sock.type, doc="the socket type") |
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218 proto = property(lambda self: self._sock.proto, doc="the socket protocol") |
|
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219 |
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remove unpleasant exec
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220 def meth(name,self,*args): |
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221 return getattr(self._sock,name)(*args) |
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222 |
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223 for _m in _socketmethods: |
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224 p = partial(meth,_m) |
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225 p.__name__ = _m |
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226 p.__doc__ = getattr(_realsocket,_m).__doc__ |
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227 m = instancemethod(p,None,_socketobject) |
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228 setattr(_socketobject,_m,m) |
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229 |
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230 socket = SocketType = _socketobject |
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231 |
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232 class _fileobject(object): |
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233 """Faux file object attached to a socket object.""" |
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234 |
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235 default_bufsize = 8192 |
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236 name = "<socket>" |
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237 |
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238 __slots__ = ["mode", "bufsize", "softspace", |
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239 # "closed" is a property, see below |
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240 "_sock", "_rbufsize", "_wbufsize", "_rbuf", "_wbuf", "_wbuf_len", |
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241 "_close"] |
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242 |
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243 def __init__(self, sock, mode='rb', bufsize=-1, close=False): |
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244 self._sock = sock |
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245 self.mode = mode # Not actually used in this version |
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246 if bufsize < 0: |
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247 bufsize = self.default_bufsize |
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248 self.bufsize = bufsize |
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249 self.softspace = False |
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250 # _rbufsize is the suggested recv buffer size. It is *strictly* |
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251 # obeyed within readline() for recv calls. If it is larger than |
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252 # default_bufsize it will be used for recv calls within read(). |
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253 if bufsize == 0: |
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254 self._rbufsize = 1 |
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255 elif bufsize == 1: |
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256 self._rbufsize = self.default_bufsize |
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257 else: |
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258 self._rbufsize = bufsize |
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259 self._wbufsize = bufsize |
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260 # We use StringIO for the read buffer to avoid holding a list |
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261 # of variously sized string objects which have been known to |
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262 # fragment the heap due to how they are malloc()ed and often |
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263 # realloc()ed down much smaller than their original allocation. |
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264 self._rbuf = StringIO() |
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265 self._wbuf = [] # A list of strings |
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266 self._wbuf_len = 0 |
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267 self._close = close |
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268 |
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269 def _getclosed(self): |
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270 return self._sock is None |
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271 closed = property(_getclosed, doc="True if the file is closed") |
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272 |
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273 def close(self): |
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274 try: |
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275 if self._sock: |
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276 self.flush() |
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277 finally: |
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278 if self._close: |
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279 self._sock.close() |
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280 self._sock = None |
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281 |
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282 def __del__(self): |
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283 try: |
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284 self.close() |
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285 except: |
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286 # close() may fail if __init__ didn't complete |
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287 pass |
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288 |
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289 def flush(self): |
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290 if self._wbuf: |
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291 data = "".join(self._wbuf) |
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292 self._wbuf = [] |
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293 self._wbuf_len = 0 |
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294 buffer_size = max(self._rbufsize, self.default_bufsize) |
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295 data_size = len(data) |
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296 write_offset = 0 |
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297 try: |
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298 while write_offset < data_size: |
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299 self._sock.sendall(buffer(data, write_offset, buffer_size)) |
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300 write_offset += buffer_size |
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301 finally: |
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302 if write_offset < data_size: |
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303 remainder = data[write_offset:] |
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304 del data # explicit free |
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305 self._wbuf.append(remainder) |
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306 self._wbuf_len = len(remainder) |
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307 |
| 23844 | 308 def fileno(self): |
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309 return self._sock.fileno() |
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310 |
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311 def write(self, data): |
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312 data = str(data) # XXX Should really reject non-string non-buffers |
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313 if not data: |
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314 return |
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315 self._wbuf.append(data) |
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316 self._wbuf_len += len(data) |
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317 if (self._wbufsize == 0 or |
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318 self._wbufsize == 1 and '\n' in data or |
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319 self._wbuf_len >= self._wbufsize): |
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320 self.flush() |
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321 |
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322 def writelines(self, list): |
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323 # XXX We could do better here for very long lists |
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324 # XXX Should really reject non-string non-buffers |
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325 lines = filter(None, map(str, list)) |
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326 self._wbuf_len += sum(map(len, lines)) |
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327 self._wbuf.extend(lines) |
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328 if (self._wbufsize <= 1 or |
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329 self._wbuf_len >= self._wbufsize): |
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330 self.flush() |
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331 |
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332 def read(self, size=-1): |
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333 # Use max, disallow tiny reads in a loop as they are very inefficient. |
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334 # We never leave read() with any leftover data from a new recv() call |
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335 # in our internal buffer. |
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336 rbufsize = max(self._rbufsize, self.default_bufsize) |
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337 # Our use of StringIO rather than lists of string objects returned by |
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338 # recv() minimizes memory usage and fragmentation that occurs when |
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339 # rbufsize is large compared to the typical return value of recv(). |
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340 buf = self._rbuf |
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341 buf.seek(0, 2) # seek end |
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342 if size < 0: |
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343 # Read until EOF |
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344 self._rbuf = StringIO() # reset _rbuf. we consume it via buf. |
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Another refactoring of read() and readline(), this time based on the
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345 while True: |
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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346 try: |
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347 data = self._sock.recv(rbufsize) |
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348 except error, e: |
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349 if e[0] == EINTR: |
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350 continue |
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351 raise |
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352 if not data: |
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This should fix issue2632. A long description of the two competing
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353 break |
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This should fix issue2632. A long description of the two competing
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354 buf.write(data) |
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355 return buf.getvalue() |
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This should fix issue2632. A long description of the two competing
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356 else: |
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This should fix issue2632. A long description of the two competing
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357 # Read until size bytes or EOF seen, whichever comes first |
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358 buf_len = buf.tell() |
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359 if buf_len >= size: |
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360 # Already have size bytes in our buffer? Extract and return. |
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361 buf.seek(0) |
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362 rv = buf.read(size) |
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This should fix issue2632. A long description of the two competing
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363 self._rbuf = StringIO() |
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This should fix issue2632. A long description of the two competing
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364 self._rbuf.write(buf.read()) |
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This should fix issue2632. A long description of the two competing
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365 return rv |
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This should fix issue2632. A long description of the two competing
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366 |
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This should fix issue2632. A long description of the two competing
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367 self._rbuf = StringIO() # reset _rbuf. we consume it via buf. |
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368 while True: |
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369 left = size - buf_len |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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370 # recv() will malloc the amount of memory given as its |
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371 # parameter even though it often returns much less data |
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372 # than that. The returned data string is short lived |
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373 # as we copy it into a StringIO and free it. This avoids |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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374 # fragmentation issues on many platforms. |
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375 try: |
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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376 data = self._sock.recv(left) |
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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377 except error, e: |
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378 if e[0] == EINTR: |
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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379 continue |
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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380 raise |
|
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Major restructuring of _fileobject. Hopefully several things now work
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381 if not data: |
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Major restructuring of _fileobject. Hopefully several things now work
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382 break |
|
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This should fix issue2632. A long description of the two competing
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383 n = len(data) |
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This should fix issue2632. A long description of the two competing
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384 if n == size and not buf_len: |
|
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This should fix issue2632. A long description of the two competing
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385 # Shortcut. Avoid buffer data copies when: |
|
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This should fix issue2632. A long description of the two competing
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386 # - We have no data in our buffer. |
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This should fix issue2632. A long description of the two competing
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387 # AND |
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This should fix issue2632. A long description of the two competing
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388 # - Our call to recv returned exactly the |
|
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This should fix issue2632. A long description of the two competing
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389 # number of bytes we were asked to read. |
|
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This should fix issue2632. A long description of the two competing
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390 return data |
|
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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391 if n == left: |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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392 buf.write(data) |
|
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393 del data # explicit free |
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Major restructuring of _fileobject. Hopefully several things now work
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394 break |
|
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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395 assert n <= left, "recv(%d) returned %d bytes" % (left, n) |
|
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396 buf.write(data) |
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Another refactoring of read() and readline(), this time based on the
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397 buf_len += n |
|
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398 del data # explicit free |
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This should fix issue2632. A long description of the two competing
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399 #assert buf_len == buf.tell() |
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400 return buf.getvalue() |
|
14007
eda09f824a9f
Revise the wrapper structure for the socket module:
Fred Drake <fdrake@acm.org>
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|
401 |
|
23715
c2733e8f6612
SF patch 555085 (timeout socket implementation) by Michael Gilfix.
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402 def readline(self, size=-1): |
|
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403 buf = self._rbuf |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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404 buf.seek(0, 2) # seek end |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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405 if buf.tell() > 0: |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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406 # check if we already have it in our buffer |
|
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407 buf.seek(0) |
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This should fix issue2632. A long description of the two competing
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408 bline = buf.readline(size) |
|
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This should fix issue2632. A long description of the two competing
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409 if bline.endswith('\n') or len(bline) == size: |
|
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This should fix issue2632. A long description of the two competing
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|
410 self._rbuf = StringIO() |
|
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This should fix issue2632. A long description of the two competing
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|
411 self._rbuf.write(buf.read()) |
|
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This should fix issue2632. A long description of the two competing
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|
412 return bline |
|
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This should fix issue2632. A long description of the two competing
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|
413 del bline |
|
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Another refactoring of read() and readline(), this time based on the
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parents:
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414 if size < 0: |
|
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Another refactoring of read() and readline(), this time based on the
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|
415 # Read until \n or EOF, whichever comes first |
|
24665
d25cf94d20b1
OK, one more hack: speed up the case of readline() in unbuffered mode.
Guido van Rossum <guido@python.org>
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|
416 if self._rbufsize <= 1: |
|
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OK, one more hack: speed up the case of readline() in unbuffered mode.
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|
417 # Speed up unbuffered case |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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418 buf.seek(0) |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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419 buffers = [buf.read()] |
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Fix a bug introduced in r62627. see issue2760 and issue2632.
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420 self._rbuf = StringIO() # reset _rbuf. we consume it via buf. |
|
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This should fix issue2632. A long description of the two competing
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|
421 data = None |
|
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OK, one more hack: speed up the case of readline() in unbuffered mode.
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|
422 recv = self._sock.recv |
|
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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423 while True: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
424 try: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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425 while data != "\n": |
|
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
426 data = recv(1) |
|
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
427 if not data: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
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changeset
|
428 break |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
429 buffers.append(data) |
|
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
430 except error, e: |
|
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Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
431 # The try..except to catch EINTR was moved outside the |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
432 # recv loop to avoid the per byte overhead. |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
433 if e[0] == EINTR: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
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|
434 continue |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
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|
435 raise |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
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changeset
|
436 break |
|
24665
d25cf94d20b1
OK, one more hack: speed up the case of readline() in unbuffered mode.
Guido van Rossum <guido@python.org>
parents:
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|
437 return "".join(buffers) |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
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|
438 |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
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changeset
|
439 buf.seek(0, 2) # seek end |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
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changeset
|
440 self._rbuf = StringIO() # reset _rbuf. we consume it via buf. |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
441 while True: |
|
55627
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
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diff
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|
442 try: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
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diff
changeset
|
443 data = self._sock.recv(self._rbufsize) |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
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changeset
|
444 except error, e: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
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changeset
|
445 if e[0] == EINTR: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
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changeset
|
446 continue |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
54519
diff
changeset
|
447 raise |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
448 if not data: |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
449 break |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
450 nl = data.find('\n') |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
451 if nl >= 0: |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
452 nl += 1 |
|
48195
65901ffffc6a
Remove buffer() usage in the socket module by just slicing directly on the
Brett Cannon <bcannon@gmail.com>
parents:
47372
diff
changeset
|
453 buf.write(data[:nl]) |
|
65901ffffc6a
Remove buffer() usage in the socket module by just slicing directly on the
Brett Cannon <bcannon@gmail.com>
parents:
47372
diff
changeset
|
454 self._rbuf.write(data[nl:]) |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
455 del data |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
456 break |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
457 buf.write(data) |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
458 return buf.getvalue() |
|
23715
c2733e8f6612
SF patch 555085 (timeout socket implementation) by Michael Gilfix.
Guido van Rossum <guido@python.org>
parents:
21971
diff
changeset
|
459 else: |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
460 # Read until size bytes or \n or EOF seen, whichever comes first |
|
46684
2729e977fdd9
Fix a bug introduced in r62627. see issue2760 and issue2632.
Gregory P. Smith <greg@mad-scientist.com>
parents:
46623
diff
changeset
|
461 buf.seek(0, 2) # seek end |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
462 buf_len = buf.tell() |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
463 if buf_len >= size: |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
464 buf.seek(0) |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
465 rv = buf.read(size) |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
466 self._rbuf = StringIO() |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
467 self._rbuf.write(buf.read()) |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
468 return rv |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
469 self._rbuf = StringIO() # reset _rbuf. we consume it via buf. |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
470 while True: |
|
55627
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
54519
diff
changeset
|
471 try: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
54519
diff
changeset
|
472 data = self._sock.recv(self._rbufsize) |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
54519
diff
changeset
|
473 except error, e: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
54519
diff
changeset
|
474 if e[0] == EINTR: |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
54519
diff
changeset
|
475 continue |
|
fbf8b791ce81
Fix issue1628205: Socket file objects returned by socket.socket.makefile() now
Gregory P. Smith <greg@mad-scientist.com>
parents:
54519
diff
changeset
|
476 raise |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
477 if not data: |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
478 break |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
479 left = size - buf_len |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
480 # did we just receive a newline? |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
481 nl = data.find('\n', 0, left) |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
482 if nl >= 0: |
|
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
483 nl += 1 |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
484 # save the excess data to _rbuf |
|
48195
65901ffffc6a
Remove buffer() usage in the socket module by just slicing directly on the
Brett Cannon <bcannon@gmail.com>
parents:
47372
diff
changeset
|
485 self._rbuf.write(data[nl:]) |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
486 if buf_len: |
|
48195
65901ffffc6a
Remove buffer() usage in the socket module by just slicing directly on the
Brett Cannon <bcannon@gmail.com>
parents:
47372
diff
changeset
|
487 buf.write(data[:nl]) |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
488 break |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
489 else: |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
490 # Shortcut. Avoid data copy through buf when returning |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
491 # a substring of our first recv(). |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
492 return data[:nl] |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
493 n = len(data) |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
494 if n == size and not buf_len: |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
495 # Shortcut. Avoid data copy through buf when |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
496 # returning exactly all of our first recv(). |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
497 return data |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
498 if n >= left: |
|
48195
65901ffffc6a
Remove buffer() usage in the socket module by just slicing directly on the
Brett Cannon <bcannon@gmail.com>
parents:
47372
diff
changeset
|
499 buf.write(data[:left]) |
|
65901ffffc6a
Remove buffer() usage in the socket module by just slicing directly on the
Brett Cannon <bcannon@gmail.com>
parents:
47372
diff
changeset
|
500 self._rbuf.write(data[left:]) |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
501 break |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
502 buf.write(data) |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
503 buf_len += n |
|
46623
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
504 #assert buf_len == buf.tell() |
|
54606ea9f4c7
This should fix issue2632. A long description of the two competing
Gregory P. Smith <greg@mad-scientist.com>
parents:
45475
diff
changeset
|
505 return buf.getvalue() |
|
23715
c2733e8f6612
SF patch 555085 (timeout socket implementation) by Michael Gilfix.
Guido van Rossum <guido@python.org>
parents:
21971
diff
changeset
|
506 |
|
c2733e8f6612
SF patch 555085 (timeout socket implementation) by Michael Gilfix.
Guido van Rossum <guido@python.org>
parents:
21971
diff
changeset
|
507 def readlines(self, sizehint=0): |
|
14682
295126433856
Support sizehint in _fileobject.readlines, as documented.
Martin v. Löwis <martin@v.loewis.de>
parents:
14592
diff
changeset
|
508 total = 0 |
|
14007
eda09f824a9f
Revise the wrapper structure for the socket module:
Fred Drake <fdrake@acm.org>
parents:
diff
changeset
|
509 list = [] |
|
24664
6a6d02be321c
Another refactoring of read() and readline(), this time based on the
Guido van Rossum <guido@python.org>
parents:
24663
diff
changeset
|
510 while True: |
|
14007
eda09f824a9f
Revise the wrapper structure for the socket module:
Fred Drake <fdrake@acm.org>
parents:
diff
changeset
|
511 line = self.readline() |
| 23844 | 512 if not line: |
| 513 break | |
|
14007
eda09f824a9f
Revise the wrapper structure for the socket module:
Fred Drake <fdrake@acm.org>
parents:
diff
changeset
|
514 list.append(line) |
|
14682
295126433856
Support sizehint in _fileobject.readlines, as documented.
Martin v. Löwis <martin@v.loewis.de>
parents:
14592
diff
changeset
|
515 total += len(line) |
|
295126433856
Support sizehint in _fileobject.readlines, as documented.
Martin v. Löwis <martin@v.loewis.de>
parents:
14592
diff
changeset
|
516 if sizehint and total >= sizehint: |
|
295126433856
Support sizehint in _fileobject.readlines, as documented.
Martin v. Löwis <martin@v.loewis.de>
parents:
14592
diff
changeset
|
517 break |
|
14007
eda09f824a9f
Revise the wrapper structure for the socket module:
Fred Drake <fdrake@acm.org>
parents:
diff
changeset
|
518 return list |
|
24656
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
519 |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
520 # Iterator protocols |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
521 |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
522 def __iter__(self): |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
523 return self |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
524 |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
525 def next(self): |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
526 line = self.readline() |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
527 if not line: |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
528 raise StopIteration |
|
e61b118e9cab
Major restructuring of _fileobject. Hopefully several things now work
Guido van Rossum <guido@python.org>
parents:
24649
diff
changeset
|
529 return line |
|
41288
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
530 |
|
47372
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
531 _GLOBAL_DEFAULT_TIMEOUT = object() |
|
41288
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
532 |
|
47372
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
533 def create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT): |
|
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
534 """Connect to *address* and return the socket object. |
|
41288
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
535 |
|
47372
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
536 Convenience function. Connect to *address* (a 2-tuple ``(host, |
|
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
537 port)``) and return the socket object. Passing the optional |
|
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
538 *timeout* parameter will set the timeout on the socket instance |
|
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
539 before attempting to connect. If no *timeout* is supplied, the |
|
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
540 global default timeout setting returned by :func:`getdefaulttimeout` |
|
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
541 is used. |
|
41288
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
542 """ |
|
41532
4b9fa8092e82
Whitespace normalization. Ugh, we really need to do this more often.
Neal Norwitz <nnorwitz@gmail.com>
parents:
41288
diff
changeset
|
543 |
|
41288
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
544 msg = "getaddrinfo returns an empty list" |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
545 host, port = address |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
546 for res in getaddrinfo(host, port, 0, SOCK_STREAM): |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
547 af, socktype, proto, canonname, sa = res |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
548 sock = None |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
549 try: |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
550 sock = socket(af, socktype, proto) |
|
47372
e2c5ae30cffe
Fixed the semantic of timeout for socket.create_connection and
Facundo Batista <facundobatista@gmail.com>
parents:
46684
diff
changeset
|
551 if timeout is not _GLOBAL_DEFAULT_TIMEOUT: |
|
41288
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
552 sock.settimeout(timeout) |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
553 sock.connect(sa) |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
554 return sock |
|
41532
4b9fa8092e82
Whitespace normalization. Ugh, we really need to do this more often.
Neal Norwitz <nnorwitz@gmail.com>
parents:
41288
diff
changeset
|
555 |
|
41288
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
556 except error, msg: |
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a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
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557 if sock is not None: |
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a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
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558 sock.close() |
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a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
559 |
|
a73aa0b821ca
Added a 'create_connect()' function to socket.py, which creates a
Facundo Batista <facundobatista@gmail.com>
parents:
41285
diff
changeset
|
560 raise error, msg |
