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msgrcv: properly downgrade the receive buffer
[perl5.git] / dosish.h
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1/* dosish.h
2 *
4bb101f2 3 * Copyright (C) 1993, 1994, 1996, 1997, 1998, 1999,
663f364b 4 * 2000, 2001, 2002, 2007, by Larry Wall and others
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5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
9 */
79072805 10#define ABORT() abort();
a0d0e21e 11
137443ea 12#ifndef SH_PATH
55497cff 13#define SH_PATH "/bin/sh"
137443ea 14#endif
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15
16#ifdef DJGPP
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17# define BIT_BUCKET "nul"
18# define OP_BINARY O_BINARY
cbec8ebe 19# define PERL_SYS_INIT_BODY(c,v) \
2f44961c 20 MALLOC_CHECK_TAINT2(*c,*v) Perl_DJGPP_init(c,v); PERLIO_INIT
933fea7f 21# define init_os_extras Perl_init_os_extras
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22# define HAS_UTIME
23# define HAS_KILL
24 char *djgpp_pathexp (const char*);
b8f06700 25 void Perl_DJGPP_init (int *argcp,char ***argvp);
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26# if (DJGPP==2 && DJGPP_MINOR < 2)
27# define NO_LOCALECONV_MON_THOUSANDS_SEP
28# endif
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29# ifndef PERL_CORE
30# define PERL_FS_VER_FMT "%d_%d_%d"
31# endif
32# define PERL_FS_VERSION STRINGIFY(PERL_REVISION) "_" \
33 STRINGIFY(PERL_VERSION) "_" \
34 STRINGIFY(PERL_SUBVERSION)
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35#elif defined(WIN32)
36# define PERL_SYS_INIT_BODY(c,v) \
37 MALLOC_CHECK_TAINT2(*c,*v) Perl_win32_init(c,v); PERLIO_INIT
38# define PERL_SYS_TERM_BODY() Perl_win32_term()
39# define BIT_BUCKET "nul"
40#elif defined(NETWARE)
41# define PERL_SYS_INIT_BODY(c,v) \
42 MALLOC_CHECK_TAINT2(*c,*v) Perl_nw5_init(c,v); PERLIO_INIT
43# define BIT_BUCKET "nwnul"
44#else
45# define PERL_SYS_INIT_BODY(c,v) \
46 MALLOC_CHECK_TAINT2(*c,*v); PERLIO_INIT
47# define BIT_BUCKET "\\dev\\nul" /* "wanna be like, umm, Newlined, or somethin?" */
48#endif
55497cff 49
cbec8ebe 50#ifndef PERL_SYS_TERM_BODY
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51# define PERL_SYS_TERM_BODY() \
52 HINTS_REFCNT_TERM; KEYWORD_PLUGIN_MUTEX_TERM; \
53 OP_CHECK_MUTEX_TERM; OP_REFCNT_TERM; PERLIO_TERM; \
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54 MALLOC_TERM; LOCALE_TERM; USER_PROP_MUTEX_TERM; \
55 ENV_TERM;
23f519f0 56#endif
564894ea 57#define dXSUB_SYS dNOOP
c07a80fd 58
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59/* USEMYBINMODE
60 * This symbol, if defined, indicates that the program should
16fe6d59 61 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure
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62 * that a file is in "binary" mode -- that is, that no translation
63 * of bytes occurs on read or write operations.
64 */
65#undef USEMYBINMODE
66
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67/* Stat_t:
68 * This symbol holds the type used to declare buffers for information
69 * returned by stat(). It's usually just struct stat. It may be necessary
70 * to include <sys/stat.h> and <sys/types.h> to get any typedef'ed
71 * information.
72 */
8b3db1a0 73#define Stat_t struct _stati64
61bb5906 74
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75/* USE_STAT_RDEV:
76 * This symbol is defined if this system has a stat structure declaring
77 * st_rdev
78 */
79#define USE_STAT_RDEV /**/
80
81/* ACME_MESS:
82 * This symbol, if defined, indicates that error messages should be
83 * should be generated in a format that allows the use of the Acme
84 * GUI/editor's autofind feature.
85 */
86#undef ACME_MESS /**/
87
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88/* ALTERNATE_SHEBANG:
89 * This symbol, if defined, contains a "magic" string which may be used
90 * as the first line of a Perl program designed to be executed directly
91 * by name, instead of the standard Unix #!. If ALTERNATE_SHEBANG
92 * begins with a character other then #, then Perl will only treat
d1be9408 93 * it as a command line if it finds the string "perl" in the first
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94 * word; otherwise it's treated as the first line of code in the script.
95 * (IOW, Perl won't hand off to another interpreter via an alternate
96 * shebang sequence that might be legal Perl code.)
97 */
98/* #define ALTERNATE_SHEBANG "#!" / **/
99
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100#include <signal.h>
101
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102/*
103 * fwrite1() should be a routine with the same calling sequence as fwrite(),
104 * but which outputs all of the bytes requested as a single stream (unlike
105 * fwrite() itself, which on some systems outputs several distinct records
106 * if the number_of_items parameter is >1).
107 */
108#define fwrite1 fwrite
109
a0d0e21e 110#define Fstat(fd,bufptr) fstat((fd),(bufptr))
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111#ifdef DJGPP
112# define Fflush(fp) djgpp_fflush(fp)
113#else
114# define Fflush(fp) fflush(fp)
115#endif
8cc95fdb 116#define Mkdir(path,mode) mkdir((path),(mode))
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117
118#ifndef WIN32
119# define Stat(fname,bufptr) stat((fname),(bufptr))
120#else
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121# define HAS_IOCTL
122# define HAS_UTIME
123# define HAS_KILL
124# define HAS_WAIT
b990f8c8 125# define HAS_CHOWN
3fe9a6f1 126#endif /* WIN32 */
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127
128/*
129 * <rich@phekda.freeserve.co.uk>: The DJGPP port has code that converts
130 * the return code of system() into the form that Unixy wait usually
131 * returns:
132 *
133 * - signal number in bits 0-6;
134 * - core dump flag in bit 7;
135 * - exit code in bits 8-15.
136 *
137 * Bits 0-7 are always zero for DJGPP, because it uses system().
138 * See djgpp.c.
139 *
140 * POSIX::W* use the W* macros from <sys/wait.h> to decode
141 * the return code. Unfortunately the W* macros for DJGPP use
142 * a different format than Unixy wait does. So there's a mismatch
143 * and, say, WEXITSTATUS($?) will return bogus values.
144 *
145 * So here we add hack to redefine the W* macros from DJGPP's <sys/wait.h>
146 * to work with our return-code conversion.
147 */
148
149#ifdef DJGPP
150
151#include <sys/wait.h>
152
153#undef WEXITSTATUS
154#undef WIFEXITED
155#undef WIFSIGNALED
156#undef WIFSTOPPED
157#undef WNOHANG
158#undef WSTOPSIG
159#undef WTERMSIG
160#undef WUNTRACED
161
162#define WEXITSTATUS(stat_val) ((stat_val) >> 8)
163#define WIFEXITED(stat_val) 0
164#define WIFSIGNALED(stat_val) 0
165#define WIFSTOPPED(stat_val) 0
166#define WNOHANG 0
167#define WSTOPSIG(stat_val) 0
168#define WTERMSIG(stat_val) 0
169#define WUNTRACED 0
170
171#endif
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172
173/* Don't go reading from /dev/urandom */
174#define PERL_NO_DEV_RANDOM
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175
176/*
14d04a33 177 * ex: set ts=8 sts=4 sw=4 et:
e9a8c099 178 */