annotate src/sysproc.h @ 1314:15a91d7ae2d1

[xemacs-hg @ 2003-02-20 08:16:21 by ben] check in makefile fixes et al Makefile.in.in: Major surgery. Move all stuff related to building anything in the src/ directory into src/. Simplify the dependencies -- everything in src/ is dependent on the single entry `src' in MAKE_SUBDIRS. Remove weirdo targets like `all-elc[s]', dump-elc[s], etc. mule/mule-msw-init.el: Removed. Delete this file. mule/mule-win32-init.el: New file, with stuff from mule-msw-init.el -- not just for MS Windows native, boys and girls! bytecomp.el: Change code inserted to catch trying to load a Mule-only .elc file in a non-Mule XEmacs. Formerly you got the rather cryptic "The required feature `mule' cannot be provided". Now you get "Loading this file requires Mule support". finder.el: Remove dependency on which directory this function is invoked from. update-elc.el: Don't mess around with ../src/BYTECOMPILE_CHANGE. Now that Makefile.in.in and xemacs.mak are in sync, both of them use NEEDTODUMP and the other one isn't used. dumped-lisp.el: Rewrite in terms of `list' and `nconc' instead of assemble-list, so we can have arbitrary forms, not just `when-feature'. very-early-lisp.el: Nuke this file. finder-inf.el, packages.el, update-elc.el, update-elc-2.el, loadup.el, make-docfile.el: Eliminate references to very-early-lisp. msw-glyphs.el: Comment clarification. xemacs.mak: Add macros DO_TEMACS, DO_XEMACS, and a few others; this macro section is now completely in sync with src/Makefile.in.in. Copy check-features, load-shadows, and rebuilding finder-inf.el from src/Makefile.in.in. The main build/dump/recompile process is now synchronized with src/Makefile.in.in. Change `WARNING' to `NOTE' and `error checking' to `error-checking' TO avoid tripping faux warnings and errors in the VC++ IDE. Makefile.in.in: Major surgery. Move all stuff related to building anything in the src/ directory from top-level Makefile.in.in to here. Simplify the dependencies. Rearrange into logical subsections. Synchronize the main compile/dump/build-elcs section with xemacs.mak, which is already clean and in good working order. Remove weirdo targets like `all-elc[s]', dump-elc[s], etc. Add additional levels of macros \(e.g. DO_TEMACS, DO_XEMACS, TEMACS_BATCH, XEMACS_BATCH, XEMACS_BATCH_PACKAGES) to factor out duplicated stuff. Clean up handling of "HEAP_IN_DATA" (Cygwin) so it doesn't need to ignore the return value from dumping. Add .NO_PARALLEL since various aspects of building and dumping must be serialized but do not always have dependencies between them (this is impossible in some cases). Everything related to src/ now gets built in one pass in this directory by just running `make' (except the Makefiles themselves and config.h, paths.h, Emacs.ad.h, and other generated .h files). console.c: Update list of possibly valid console types. emacs.c: Rationalize the specifying and handling of the type of the first frame. This was originally prompted by a workspace in which I got GTK to compile under C++ and in the process fixed it so it could coexist with X in the same build -- hence, a combined TTY/X/MS-Windows/GTK build is now possible under Cygwin. (However, you can't simultaneously *display* more than one kind of device connection -- but getting that to work is not that difficult. Perhaps a project for a bored grad student. I (ben) would do it but don't see the use.) To make sense of this, I added new switches that can be used to specifically indicate the window system: -x [aka --use-x], -tty \[aka --use-tty], -msw [aka --use-ms-windows], -gtk [aka --use-gtk], and -gnome [aka --use-gnome, same as --use-gtk]. -nw continues as an alias for -tty. When none have been given, XEmacs checks for other parameters implying particular device types (-t -> tty, -display -> x [or should it have same treatment as DISPLAY below?]), and has ad-hoc logic afterwards: if env var DISPLAY is set, use x (or gtk? perhaps should check whether gnome is running), else MS Windows if it exsits, else TTY if it exists, else stream, and you must be running in batch mode. This also fixes an existing bug whereby compiling with no x, no mswin, no tty, when running non- interactively (e.g. to dump) I get "sorry, must have TTY support". emacs.c: Turn on Vstack_trace_on_error so that errors are debuggable even when occurring extremely early in reinitialization. emacs.c: Try to make sure that the user can see message output under Windows (i.e. it doesn't just disappear right away) regardless of when it occurs, e.g. in the middle of creating the first frame. emacs.c: Define new function `emacs-run-status', indicating whether XEmacs is noninteractive or interactive, whether raw, post-dump/pdump-load or run-temacs, whether we are dumping, whether pdump is in effect. event-stream.c: It's "mommas are fat", not "momas are fat". Fix other typo. event-stream.c: Conditionalize in_menu_callback check on HAVE_MENUBARS, because it won't exist on w/o menubar support, lisp.h: More hackery on RETURN_NOT_REACHED. Cygwin v3.2 DOES complain here if RETURN_NOT_REACHED() is blank, as it is for GCC 2.5+. So make it blank only for GCC 2.5 through 2.999999999999999. Declare Vstack_trace_on_error. profile.c: Need to include "profile.h" to fix warnings. sheap.c: Don't fatal() when need to rerun Make, just stderr_out() and exit(0). That way we can distinguish between a dumping failing expectedly (due to lack of stack space, triggering another dump) and unexpectedly, in which case, we want to stop building. (or go on, if -K is given) syntax.c, syntax.h: Use ints where they belong, and enum syntaxcode's where they belong, and fix warnings thereby. syntax.h: Fix crash caused by an edge condition in the syntax-cache macros. text.h: Spacing fixes. xmotif.h: New file, to get around shadowing warnings. EmacsManager.c, event-Xt.c, glyphs-x.c, gui-x.c, input-method-motif.c, xmmanagerp.h, xmprimitivep.h: Include xmotif.h. alloc.c: Conditionalize in_malloc on ERROR_CHECK_MALLOC. config.h.in, file-coding.h, fileio.c, getloadavg.c, select-x.c, signal.c, sysdep.c, sysfile.h, systime.h, text.c, unicode.c: Eliminate HAVE_WIN32_CODING_SYSTEMS, use WIN32_ANY instead. Replace defined (WIN32_NATIVE) || defined (CYGWIN) with WIN32_ANY. lisp.h: More futile attempts to walk and chew gum at the same time when dealing with subr's that don't return.
author ben
date Thu, 20 Feb 2003 08:16:21 +0000
parents 804517e16990
children 04bc9d2f42c7
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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 #if !defined (NO_SUBPROCESSES)
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34
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35 #ifdef MINGW
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36 #include <../mingw/process.h>
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37 #elif defined (CYGWIN)
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38 #include <../include/process.h>
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39 #elif defined (WIN32_NATIVE)
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40 /* <process.h> should not conflict with "process.h", as per ANSI definition.
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41 This is not true with visual c though. The trick below works with
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42 VC4.2b, 5.0 and 6.0. It assumes that VC is installed in a kind of
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43 standard way, so include path ends with /include.
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44 NOTE: We also include this same file in s/windowsnt.h, to avoid problems
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45 because this file prototypes abort() and then lisp.h defines it as a
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46 macro, which must happen after the prototype. DO NOT remove the include
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47 here just because you "know" it's somewhere else as well.
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48 */
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49 #include <../include/process.h>
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50 #endif
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51
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52 #ifdef HAVE_SOCKETS /* TCP connection support, if kernel can do it */
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53 # include <sys/types.h> /* AJK */
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54 # ifndef WIN32_NATIVE
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55 # include <sys/socket.h>
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56 # include <netdb.h>
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57 # include <netinet/in.h>
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58 # include <arpa/inet.h>
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59 # endif
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60 # ifdef NEED_NET_ERRNO_H
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61 # include <net/errno.h>
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62 # endif /* NEED_NET_ERRNO_H */
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63 #elif defined (SKTPAIR)
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64 # include <sys/socket.h>
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65 #endif /* HAVE_SOCKETS */
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66
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67 #ifdef WIN32_NATIVE
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68 /* Note: winsock.h already included in systime.h above */
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69 /* map winsock error codes to standard names */
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70 #define EWOULDBLOCK WSAEWOULDBLOCK
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71 #define EINPROGRESS WSAEINPROGRESS
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72 #define EALREADY WSAEALREADY
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73 #define ENOTSOCK WSAENOTSOCK
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74 #define EDESTADDRREQ WSAEDESTADDRREQ
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75 #define EMSGSIZE WSAEMSGSIZE
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76 #define EPROTOTYPE WSAEPROTOTYPE
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77 #define ENOPROTOOPT WSAENOPROTOOPT
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78 #define EPROTONOSUPPORT WSAEPROTONOSUPPORT
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79 #define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
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80 #define EOPNOTSUPP WSAEOPNOTSUPP
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81 #define EPFNOSUPPORT WSAEPFNOSUPPORT
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82 #define EAFNOSUPPORT WSAEAFNOSUPPORT
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83 #define EADDRINUSE WSAEADDRINUSE
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84 #define EADDRNOTAVAIL WSAEADDRNOTAVAIL
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85 #define ENETDOWN WSAENETDOWN
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86 #define ENETUNREACH WSAENETUNREACH
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87 #define ENETRESET WSAENETRESET
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88 #define ECONNABORTED WSAECONNABORTED
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89 #define ECONNRESET WSAECONNRESET
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90 #define ENOBUFS WSAENOBUFS
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91 #define EISCONN WSAEISCONN
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92 #define ENOTCONN WSAENOTCONN
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93 #define ESHUTDOWN WSAESHUTDOWN
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94 #define ETOOMANYREFS WSAETOOMANYREFS
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95 #define ETIMEDOUT WSAETIMEDOUT
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96 #define ECONNREFUSED WSAECONNREFUSED
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97 #define ELOOP WSAELOOP
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98 /* #define ENAMETOOLONG WSAENAMETOOLONG */
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99 #define EHOSTDOWN WSAEHOSTDOWN
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100 #define EHOSTUNREACH WSAEHOSTUNREACH
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101 /* #define ENOTEMPTY WSAENOTEMPTY */
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102 #define EPROCLIM WSAEPROCLIM
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103 #define EUSERS WSAEUSERS
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104 #define EDQUOT WSAEDQUOT
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105 #define ESTALE WSAESTALE
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106 #define EREMOTE WSAEREMOTE
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107 #endif /* WIN32_NATIVE */
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108
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109 /* On some systems, e.g. DGUX, inet_addr returns a 'struct in_addr'. */
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110 #ifdef HAVE_BROKEN_INET_ADDR
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111 # define IN_ADDR struct in_addr
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112 # define NUMERIC_ADDR_ERROR (numeric_addr.s_addr == -1)
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113 #else
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114 # if (LONGBITS > 32)
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115 # define IN_ADDR unsigned int
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116 # else
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117 # define IN_ADDR unsigned long
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118 # endif
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119 # define NUMERIC_ADDR_ERROR (numeric_addr == (IN_ADDR) -1)
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120 #endif
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121
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122 /* Define first descriptor number available for subprocesses. */
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123 #define FIRST_PROC_DESC 3
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124
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125 #ifdef IRIS
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126 # include <sys/sysmacros.h> /* for "minor" */
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127 #endif /* not IRIS */
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128
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129 #endif /* !NO_SUBPROCESSES */
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130
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131 #ifdef AIX
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132 #include <sys/select.h>
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133 #endif
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134
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135 #ifdef HAVE_STROPTS_H
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136 #include <stropts.h> /* isastream(), I_PUSH */
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137 #endif
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138
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139 #ifdef HAVE_STRTIO_H
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140 #include <strtio.h> /* TIOCSIGNAL */
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141 #endif
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142
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143 #ifdef HAVE_PTY_H
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144 #include <pty.h> /* openpty() on Tru64, Linux */
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145 #endif
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146
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147 #ifdef HAVE_LIBUTIL_H
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148 #include <libutil.h> /* openpty() on FreeBSD */
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149 #endif
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150
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151 #ifdef HAVE_UTIL_H
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152 #include <util.h> /* openpty() on NetBSD */
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153 #endif
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154
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155 #ifdef FD_SET
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156
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157 /* We could get this from param.h, but better not to depend on finding that.
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158 And better not to risk that it might define other symbols used in this
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159 file. */
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160 # ifdef FD_SETSIZE
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161 # define MAXDESC FD_SETSIZE
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162 # else
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163 # define MAXDESC 64
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164 # endif /* FD_SETSIZE */
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165 # define SELECT_TYPE fd_set
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166
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167 #else /* no FD_SET */
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168
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169 # define MAXDESC 32
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170 # define SELECT_TYPE int
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171
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172 /* Define the macros to access a single-int bitmap of descriptors. */
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173 # define FD_SET(n, p) (*(p) |= (1 << (n)))
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174 # define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
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175 # define FD_ISSET(n, p) (*(p) & (1 << (n)))
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176 # define FD_ZERO(p) (*(p) = 0)
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177
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178 #endif /* no FD_SET */
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179
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180 int poll_fds_for_input (SELECT_TYPE mask);
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181 int qxe_execve (const Ibyte *filename, Ibyte * const argv[],
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182 Ibyte * const envp[]);
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183 pid_t qxe_getpid (void);
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184
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185 /* #### I would really like to delete the remaining synchronous code entirely.
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186 We are now using it only for *REALLY* old systems -- how many systems
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187 nowadays
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188
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189 (a) lack job control, or
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190 (b) lack mkdir() or rmdir()
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191
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192 ?????
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193
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194 --ben
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195 */
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196
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197 #include "syssignal.h" /* needed for SIGTSTP */
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198
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199 #if !defined (WIN32_NATIVE) && ((!defined (SIGTSTP) && !defined (USG_JOBCTRL)) || !defined (HAVE_MKDIR) || !defined (HAVE_RMDIR))
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200
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201 #define NEED_SYNC_PROCESS_CODE
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202
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203 /* True iff we are about to fork off a synchronous process or if we
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204 are waiting for it. */
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205 extern volatile int synch_process_alive;
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206
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207 /* Nonzero => this is a string explaining death of synchronous subprocess. */
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208 extern const char *synch_process_death;
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209
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210 /* If synch_process_death is zero,
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211 this is exit code of synchronous subprocess. */
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212 extern int synch_process_retcode;
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213
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214 #endif
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215
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216
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217 #endif /* INCLUDED_sysproc_h_ */