Mercurial > gnulib
annotate lib/sys_select.in.h @ 17303:0e38241a3d05
sys_time: port to Solaris 2.6
There is a circularity problem on Solaris 2.6, where <time.h> includes
<sys/time.h> for struct timespec. The include nesting is gnulib
<time.h>, system <time.h>, gnulib <sys/time.h>, system
<sys/time.h>, gnulib <sys/types.h>, system <sys/types.h>, gnulib
<sys/select.h>, gnulib <signal.h>, system <sys/signal.h>, system
<sys/siginfo.h>; the last, innermost file needs struct
timestruc_t, which is defined in <sys/time.h>, which has not been
fully parsed. Problem reported by Tom G. Christensen in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-01/msg00113.html>.
* lib/sys_select.in.h: Treat Solaris 2.6's problem with
<sys/time.h> and <sys/types.h> like OSF/1's similar problem.
* lib/sys_time.in.h: Redo to resemble sys_select.in.h, which
uses split double-inclusion guards.
author | Paul Eggert <eggert@cs.ucla.edu> |
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date | Wed, 30 Jan 2013 21:26:44 -0800 |
parents | e542fd46ad6f |
children | 5a51fb7777a9 |
rev | line source |
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1 /* Substitute for <sys/select.h>. |
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2 Copyright (C) 2007-2013 Free Software Foundation, Inc. |
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3 |
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4 This program is free software; you can redistribute it and/or modify |
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5 it under the terms of the GNU General Public License as published by |
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6 the Free Software Foundation; either version 2, or (at your option) |
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7 any later version. |
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8 |
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9 This program is distributed in the hope that it will be useful, |
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 GNU General Public License for more details. |
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13 |
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14 You should have received a copy of the GNU General Public License |
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15 along with this program; if not, see <http://www.gnu.org/licenses/>. */ |
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16 |
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17 # if __GNUC__ >= 3 |
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18 @PRAGMA_SYSTEM_HEADER@ |
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19 # endif |
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20 @PRAGMA_COLUMNS@ |
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21 |
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22 /* On OSF/1 and Solaris 2.6, <sys/types.h> and <sys/time.h> |
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23 both include <sys/select.h>. |
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24 Simply delegate to the system's header in this case. */ |
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25 #if (@HAVE_SYS_SELECT_H@ \ |
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26 && ((defined __osf__ && defined _SYS_TYPES_H_ && defined _OSF_SOURCE) \ |
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27 || (defined __sun && defined _SYS_TYPES_H \ |
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28 && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE) \ |
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29 || defined __EXTENSIONS__))) \ |
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30 && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H) |
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31 |
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32 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TYPES_H |
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33 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
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34 |
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35 #elif (@HAVE_SYS_SELECT_H@ \ |
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36 && ((defined __osf__ && defined _SYS_TIME_H_ && defined _OSF_SOURCE) \ |
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37 || (defined __sun && defined _SYS_TIME_H \ |
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38 && (! (defined _XOPEN_SOURCE || defined _POSIX_C_SOURCE) \ |
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39 || defined __EXTENSIONS__))) \ |
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40 && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H) |
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41 |
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42 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H |
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43 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
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44 |
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45 /* On IRIX 6.5, <sys/timespec.h> includes <sys/types.h>, which includes |
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46 <sys/bsd_types.h>, which includes <sys/select.h>. At this point we cannot |
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47 include <signal.h>, because that includes <internal/signal_core.h>, which |
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48 gives a syntax error because <sys/timespec.h> has not been completely |
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49 processed. Simply delegate to the system's header in this case. */ |
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50 #elif @HAVE_SYS_SELECT_H@ && defined __sgi && (defined _SYS_BSD_TYPES_H && !defined _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H) |
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51 |
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52 # define _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_BSD_TYPES_H |
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53 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
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54 |
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55 /* On OpenBSD 5.0, <pthread.h> includes <sys/types.h>, which includes |
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56 <sys/select.h>. At this point we cannot include <signal.h>, because that |
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57 includes gnulib's pthread.h override, which gives a syntax error because |
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58 /usr/include/pthread.h has not been completely processed. Simply delegate |
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59 to the system's header in this case. */ |
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60 #elif @HAVE_SYS_SELECT_H@ && defined __OpenBSD__ && (defined _PTHREAD_H_ && !defined PTHREAD_MUTEX_INITIALIZER) |
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61 |
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62 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
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63 |
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64 #else |
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65 |
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66 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H |
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67 |
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68 /* On many platforms, <sys/select.h> assumes prior inclusion of |
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69 <sys/types.h>. Also, mingw defines sigset_t there, instead of |
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70 in <signal.h> where it belongs. */ |
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71 #include <sys/types.h> |
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72 |
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73 #if @HAVE_SYS_SELECT_H@ |
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74 |
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75 /* On OSF/1 4.0, <sys/select.h> provides only a forward declaration |
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76 of 'struct timeval', and no definition of this type. |
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77 Also, Mac OS X, AIX, HP-UX, IRIX, Solaris, Interix declare select() |
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78 in <sys/time.h>. |
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79 But avoid namespace pollution on glibc systems. */ |
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80 # ifndef __GLIBC__ |
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81 # include <sys/time.h> |
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82 # endif |
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83 |
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84 /* On AIX 7 and Solaris 10, <sys/select.h> provides an FD_ZERO implementation |
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85 that relies on memset(), but without including <string.h>. |
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86 But in any case avoid namespace pollution on glibc systems. */ |
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87 # if (defined __OpenBSD__ || defined _AIX || defined __sun || defined __osf__ || defined __BEOS__) \ |
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88 && ! defined __GLIBC__ |
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89 # include <string.h> |
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90 # endif |
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91 |
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92 /* The include_next requires a split double-inclusion guard. */ |
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93 # @INCLUDE_NEXT@ @NEXT_SYS_SELECT_H@ |
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94 |
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95 #endif |
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96 |
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97 /* Get definition of 'sigset_t'. |
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98 But avoid namespace pollution on glibc systems. |
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99 Do this after the include_next (for the sake of OpenBSD 5.0) but before |
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100 the split double-inclusion guard (for the sake of Solaris). */ |
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101 #if !(defined __GLIBC__ && !defined __UCLIBC__) |
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102 # include <signal.h> |
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103 #endif |
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104 |
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105 #ifndef _@GUARD_PREFIX@_SYS_SELECT_H |
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106 #define _@GUARD_PREFIX@_SYS_SELECT_H |
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107 |
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108 #if !@HAVE_SYS_SELECT_H@ |
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109 /* A platform that lacks <sys/select.h>. */ |
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110 /* Get the 'struct timeval' and 'fd_set' types and the FD_* macros |
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111 on most platforms. */ |
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112 # include <sys/time.h> |
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113 /* On HP-UX 11, <sys/time.h> provides an FD_ZERO implementation |
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114 that relies on memset(), but without including <string.h>. */ |
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115 # if defined __hpux |
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116 # include <string.h> |
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117 # endif |
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118 /* On native Windows platforms: |
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119 Get the 'fd_set' type. |
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120 Get the close() declaration before we override it. */ |
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121 # if @HAVE_WINSOCK2_H@ |
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122 # if !defined _GL_INCLUDING_WINSOCK2_H |
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123 # define _GL_INCLUDING_WINSOCK2_H |
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124 # include <winsock2.h> |
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125 # undef _GL_INCLUDING_WINSOCK2_H |
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126 # endif |
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127 # include <io.h> |
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128 # endif |
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129 #endif |
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130 |
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131 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
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132 |
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133 /* The definition of _GL_WARN_ON_USE is copied here. */ |
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134 |
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135 |
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136 /* Fix some definitions from <winsock2.h>. */ |
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137 |
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138 #if @HAVE_WINSOCK2_H@ |
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139 |
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140 # if !GNULIB_defined_rpl_fd_isset |
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141 |
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142 /* Re-define FD_ISSET to avoid a WSA call while we are not using |
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143 network sockets. */ |
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144 static int |
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145 rpl_fd_isset (SOCKET fd, fd_set * set) |
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146 { |
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147 u_int i; |
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148 if (set == NULL) |
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149 return 0; |
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150 |
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151 for (i = 0; i < set->fd_count; i++) |
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152 if (set->fd_array[i] == fd) |
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153 return 1; |
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154 |
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155 return 0; |
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156 } |
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157 |
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158 # define GNULIB_defined_rpl_fd_isset 1 |
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159 # endif |
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160 |
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161 # undef FD_ISSET |
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162 # define FD_ISSET(fd, set) rpl_fd_isset(fd, set) |
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163 |
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164 #endif |
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165 |
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166 /* Hide some function declarations from <winsock2.h>. */ |
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167 |
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168 #if @HAVE_WINSOCK2_H@ |
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169 # if !defined _@GUARD_PREFIX@_UNISTD_H |
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170 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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171 # undef close |
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172 # define close close_used_without_including_unistd_h |
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173 # else |
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174 _GL_WARN_ON_USE (close, |
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175 "close() used without including <unistd.h>"); |
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176 # endif |
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177 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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178 # undef gethostname |
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179 # define gethostname gethostname_used_without_including_unistd_h |
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180 # else |
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181 _GL_WARN_ON_USE (gethostname, |
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182 "gethostname() used without including <unistd.h>"); |
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183 # endif |
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184 # endif |
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185 # if !defined _@GUARD_PREFIX@_SYS_SOCKET_H |
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186 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
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187 # undef socket |
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188 # define socket socket_used_without_including_sys_socket_h |
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189 # undef connect |
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190 # define connect connect_used_without_including_sys_socket_h |
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191 # undef accept |
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192 # define accept accept_used_without_including_sys_socket_h |
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193 # undef bind |
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194 # define bind bind_used_without_including_sys_socket_h |
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195 # undef getpeername |
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196 # define getpeername getpeername_used_without_including_sys_socket_h |
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197 # undef getsockname |
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198 # define getsockname getsockname_used_without_including_sys_socket_h |
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199 # undef getsockopt |
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200 # define getsockopt getsockopt_used_without_including_sys_socket_h |
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201 # undef listen |
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202 # define listen listen_used_without_including_sys_socket_h |
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203 # undef recv |
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204 # define recv recv_used_without_including_sys_socket_h |
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205 # undef send |
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206 # define send send_used_without_including_sys_socket_h |
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207 # undef recvfrom |
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208 # define recvfrom recvfrom_used_without_including_sys_socket_h |
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209 # undef sendto |
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210 # define sendto sendto_used_without_including_sys_socket_h |
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211 # undef setsockopt |
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212 # define setsockopt setsockopt_used_without_including_sys_socket_h |
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213 # undef shutdown |
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214 # define shutdown shutdown_used_without_including_sys_socket_h |
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215 # else |
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216 _GL_WARN_ON_USE (socket, |
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217 "socket() used without including <sys/socket.h>"); |
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218 _GL_WARN_ON_USE (connect, |
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219 "connect() used without including <sys/socket.h>"); |
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220 _GL_WARN_ON_USE (accept, |
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221 "accept() used without including <sys/socket.h>"); |
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222 _GL_WARN_ON_USE (bind, |
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223 "bind() used without including <sys/socket.h>"); |
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224 _GL_WARN_ON_USE (getpeername, |
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225 "getpeername() used without including <sys/socket.h>"); |
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226 _GL_WARN_ON_USE (getsockname, |
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227 "getsockname() used without including <sys/socket.h>"); |
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228 _GL_WARN_ON_USE (getsockopt, |
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229 "getsockopt() used without including <sys/socket.h>"); |
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230 _GL_WARN_ON_USE (listen, |
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231 "listen() used without including <sys/socket.h>"); |
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232 _GL_WARN_ON_USE (recv, |
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233 "recv() used without including <sys/socket.h>"); |
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234 _GL_WARN_ON_USE (send, |
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235 "send() used without including <sys/socket.h>"); |
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236 _GL_WARN_ON_USE (recvfrom, |
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237 "recvfrom() used without including <sys/socket.h>"); |
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238 _GL_WARN_ON_USE (sendto, |
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239 "sendto() used without including <sys/socket.h>"); |
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240 _GL_WARN_ON_USE (setsockopt, |
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241 "setsockopt() used without including <sys/socket.h>"); |
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242 _GL_WARN_ON_USE (shutdown, |
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243 "shutdown() used without including <sys/socket.h>"); |
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244 # endif |
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245 # endif |
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246 #endif |
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247 |
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248 |
15329 | 249 #if @GNULIB_PSELECT@ |
250 # if @REPLACE_PSELECT@ | |
251 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
252 # undef pselect | |
253 # define pselect rpl_pselect | |
254 # endif | |
255 _GL_FUNCDECL_RPL (pselect, int, | |
256 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, | |
257 struct timespec const *restrict, const sigset_t *restrict)); | |
258 _GL_CXXALIAS_RPL (pselect, int, | |
259 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, | |
260 struct timespec const *restrict, const sigset_t *restrict)); | |
261 # else | |
262 # if !@HAVE_PSELECT@ | |
263 _GL_FUNCDECL_SYS (pselect, int, | |
264 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, | |
265 struct timespec const *restrict, const sigset_t *restrict)); | |
266 # endif | |
267 _GL_CXXALIAS_SYS (pselect, int, | |
268 (int, fd_set *restrict, fd_set *restrict, fd_set *restrict, | |
269 struct timespec const *restrict, const sigset_t *restrict)); | |
270 # endif | |
271 _GL_CXXALIASWARN (pselect); | |
272 #elif defined GNULIB_POSIXCHECK | |
273 # undef pselect | |
274 # if HAVE_RAW_DECL_PSELECT | |
275 _GL_WARN_ON_USE (pselect, "pselect is not portable - " | |
276 "use gnulib module pselect for portability"); | |
277 # endif | |
278 #endif | |
279 | |
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280 #if @GNULIB_SELECT@ |
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281 # if @REPLACE_SELECT@ |
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282 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
10586 | 283 # undef select |
284 # define select rpl_select | |
285 # endif | |
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286 _GL_FUNCDECL_RPL (select, int, |
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287 (int, fd_set *, fd_set *, fd_set *, struct timeval *)); |
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288 _GL_CXXALIAS_RPL (select, int, |
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289 (int, fd_set *, fd_set *, fd_set *, struct timeval *)); |
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290 # else |
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291 _GL_CXXALIAS_SYS (select, int, |
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292 (int, fd_set *, fd_set *, fd_set *, struct timeval *)); |
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293 # endif |
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294 _GL_CXXALIASWARN (select); |
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295 #elif @HAVE_WINSOCK2_H@ |
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296 # undef select |
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297 # define select select_used_without_requesting_gnulib_module_select |
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298 #elif defined GNULIB_POSIXCHECK |
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299 # undef select |
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300 # if HAVE_RAW_DECL_SELECT |
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301 _GL_WARN_ON_USE (select, "select is not always POSIX compliant - " |
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302 "use gnulib module select for portability"); |
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303 # endif |
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304 #endif |
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305 |
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306 |
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307 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */ |
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308 #endif /* _@GUARD_PREFIX@_SYS_SELECT_H */ |
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309 #endif /* OSF/1 */ |