annotate src/sysproc.h @ 5464:e79916901603 r21-5-30

XEmacs 21.5.30 "garlic" is released.
author Stephen J. Turnbull <stephen@xemacs.org>
date Wed, 27 Apr 2011 01:24:28 +0900
parents aa5ed11f473b
children 308d34e9f07d
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1 /*
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2 Copyright (C) 1995 Free Software Foundation, Inc.
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3 Copyright (C) 2000, 2002 Ben Wing.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not really in FSF. */
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23
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24 #ifndef INCLUDED_sysproc_h_
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25 #define INCLUDED_sysproc_h_
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26
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27 #include "systime.h" /* necessary for sys/resource.h; also gets the
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28 FD_* defines on some systems. */
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29 #ifndef WIN32_NATIVE
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30 #include <sys/resource.h>
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31 #endif
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32
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33 #ifdef MINGW
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34 #include <../mingw/process.h>
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35 #elif defined (CYGWIN)
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36 #include <../include/process.h>
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37 #elif defined (WIN32_NATIVE)
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38 /* <process.h> should not conflict with "process.h", as per ANSI definition.
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39 This is not true with visual c though. The trick below works with
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40 VC4.2b, 5.0 and 6.0. It assumes that VC is installed in a kind of
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41 standard way, so include path ends with /include.
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42 */
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43 #include <../include/process.h>
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44 #endif
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45
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46 #ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */
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47 # include <sys/types.h> /* AJK */
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48 # ifndef WIN32_NATIVE
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49 # include <sys/socket.h>
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50 # include <netdb.h>
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51 # include <netinet/in.h>
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52 # include <arpa/inet.h>
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53 # endif
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54 #endif /* HAVE_SOCKETS */
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55
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56 #ifdef WIN32_NATIVE
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57 /* Note: winsock.h already included in systime.h above */
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58 /* map winsock error codes to standard names */
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59 #define EWOULDBLOCK WSAEWOULDBLOCK
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60 #define EINPROGRESS WSAEINPROGRESS
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61 #define EALREADY WSAEALREADY
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62 #define ENOTSOCK WSAENOTSOCK
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63 #define EDESTADDRREQ WSAEDESTADDRREQ
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64 #define EMSGSIZE WSAEMSGSIZE
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65 #define EPROTOTYPE WSAEPROTOTYPE
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66 #define ENOPROTOOPT WSAENOPROTOOPT
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67 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT
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68 #define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
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69 #define EOPNOTSUPP WSAEOPNOTSUPP
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70 #define EPFNOSUPPORT WSAEPFNOSUPPORT
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71 #define EAFNOSUPPORT WSAEAFNOSUPPORT
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72 #define EADDRINUSE WSAEADDRINUSE
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73 #define EADDRNOTAVAIL WSAEADDRNOTAVAIL
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74 #define ENETDOWN WSAENETDOWN
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75 #define ENETUNREACH WSAENETUNREACH
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76 #define ENETRESET WSAENETRESET
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77 #define ECONNABORTED WSAECONNABORTED
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78 #define ECONNRESET WSAECONNRESET
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79 #define ENOBUFS WSAENOBUFS
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80 #define EISCONN WSAEISCONN
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81 #define ENOTCONN WSAENOTCONN
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82 #define ESHUTDOWN WSAESHUTDOWN
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83 #define ETOOMANYREFS WSAETOOMANYREFS
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84 #define ETIMEDOUT WSAETIMEDOUT
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85 #define ECONNREFUSED WSAECONNREFUSED
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86 #define ELOOP WSAELOOP
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87 /* #define ENAMETOOLONG WSAENAMETOOLONG */
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88 #define EHOSTDOWN WSAEHOSTDOWN
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89 #define EHOSTUNREACH WSAEHOSTUNREACH
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90 /* #define ENOTEMPTY WSAENOTEMPTY */
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91 #define EPROCLIM WSAEPROCLIM
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92 #define EUSERS WSAEUSERS
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93 #define EDQUOT WSAEDQUOT
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94 #define ESTALE WSAESTALE
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95 #define EREMOTE WSAEREMOTE
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96 #endif /* WIN32_NATIVE */
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97
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98 /* On some systems, e.g. DGUX, inet_addr returns a `struct in_addr'. */
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99 #ifdef HAVE_BROKEN_INET_ADDR
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100 # define IN_ADDR struct in_addr
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101 # define NUMERIC_ADDR_ERROR (numeric_addr.s_addr == -1)
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102 #else
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103 # if (LONGBITS > 32)
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104 # define IN_ADDR unsigned int
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105 # else
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106 # define IN_ADDR unsigned long
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107 # endif
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108 # define NUMERIC_ADDR_ERROR (numeric_addr == (IN_ADDR) -1)
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109 #endif
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110
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111 /* Define first descriptor number available for subprocesses. */
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112 #define FIRST_PROC_DESC 3
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113
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114 #ifdef AIX
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115 #include <sys/select.h>
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116 #endif
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117
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118 #ifdef HAVE_STROPTS_H
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119 #include <stropts.h> /* isastream(), I_PUSH */
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120 #endif
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121
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122 #ifdef HAVE_STRTIO_H
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123 #include <strtio.h> /* TIOCSIGNAL */
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124 #endif
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125
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126 #ifdef HAVE_PTY_H
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127 #include <pty.h> /* openpty() on Tru64, Linux */
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128 #endif
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129
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130 #ifdef HAVE_LIBUTIL_H
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131 #include <libutil.h> /* openpty() on FreeBSD */
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132 #endif
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133
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134 #ifdef HAVE_UTIL_H
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135 #include <util.h> /* openpty() on NetBSD */
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136 #endif
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137
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138 /* The FD_* macros expand to __extension__ forms on glibc-based systems. Uno
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139 does not understand such forms, so let's help it out. */
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140 #ifdef UNO
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141 #undef FD_SET
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142 #undef FD_CLR
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143 #undef FD_ISSET
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144 #undef FD_ZERO
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145 #undef MAXDESC
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146 #undef SELECT_TYPE
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147 #endif /* UNO */
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148
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149 #ifdef FD_SET
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150
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151 /* We could get this from param.h, but better not to depend on finding that.
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152 And better not to risk that it might define other symbols used in this
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153 file. */
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154 # ifdef FD_SETSIZE
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155 # define MAXDESC FD_SETSIZE
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156 # else
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157 # define MAXDESC 64
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158 # endif /* FD_SETSIZE */
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159 # define SELECT_TYPE fd_set
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160
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161 #else /* no FD_SET */
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162
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163 # define MAXDESC 32
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164 # define SELECT_TYPE int
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165
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166 /* Define the macros to access a single-int bitmap of descriptors. */
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167 # define FD_SET(n, p) (*(p) |= (1 << (n)))
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168 # define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
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169 # define FD_ISSET(n, p) (*(p) & (1 << (n)))
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170 # define FD_ZERO(p) (*(p) = 0)
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171
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172 #endif /* no FD_SET */
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173
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174 int poll_fds_for_input (SELECT_TYPE mask);
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175 int qxe_execve (const Ibyte *filename, Ibyte * const argv[],
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176 Ibyte * const envp[]);
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177 pid_t qxe_getpid (void);
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178
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179 /* #### I would really like to delete the remaining synchronous code entirely.
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180 We are now using it only for *REALLY* old systems -- how many systems
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181 nowadays
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182
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183 (a) lack job control, or
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184 (b) lack mkdir() or rmdir()
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185
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186 ?????
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187
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188 --ben
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189 */
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190
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191 #include "syssignal.h" /* needed for SIGTSTP */
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192
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193 #if !defined (WIN32_NATIVE) && (!defined (SIGTSTP) || !defined (HAVE_MKDIR) || !defined (HAVE_RMDIR))
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194
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195 #define NEED_SYNC_PROCESS_CODE
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196
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197 /* True iff we are about to fork off a synchronous process or if we
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198 are waiting for it. */
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199 extern volatile int synch_process_alive;
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200
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201 /* Nonzero => this is a string explaining death of synchronous subprocess. */
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202 extern const char *synch_process_death;
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203
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204 /* If synch_process_death is zero,
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205 this is exit code of synchronous subprocess. */
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206 extern int synch_process_retcode;
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207
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208 #endif
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209
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210
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211 #endif /* INCLUDED_sysproc_h_ */