/* Definitions for POSIX spawn interface.
- Copyright (C) 2000, 2003-2004, 2008-2016 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2003-2004, 2008-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software: you can redistribute it and/or modify
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
-
-#ifndef _@GUARD_PREFIX@_SPAWN_H
+ along with this program. If not, see <https://www.gnu.org/licenses/>. */
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
+#if defined _GL_ALREADY_INCLUDING_SPAWN_H
+/* Special invocation convention:
+ On OS/2 kLIBC, <spawn.h> includes <signal.h>. Then <signal.h> ->
+ <pthread.h> -> <sched.h> -> <spawn.h> are included by GNULIB.
+ In this situation, struct sched_param is not yet defined. */
+
+#@INCLUDE_NEXT@ @NEXT_SPAWN_H@
+
+#else
+
+#ifndef _@GUARD_PREFIX@_SPAWN_H
+/* Normal invocation convention. */
+
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_SPAWN_H@
+
+# define _GL_ALREADY_INCLUDING_SPAWN_H
+
# @INCLUDE_NEXT@ @NEXT_SPAWN_H@
+
+# define _GL_ALREADY_INCLUDING_SPAWN_H
+
#endif
#ifndef _@GUARD_PREFIX@_SPAWN_H
# define __THROW
#endif
-/* GCC 2.95 and later have "__restrict"; C99 compilers have
+/* For plain 'restrict', use glibc's __restrict if defined.
+ Otherwise, GCC 2.95 and later have "__restrict"; C99 compilers have
"restrict", and "configure" may have defined "restrict".
Other compilers use __restrict, __restrict__, and _Restrict, and
'configure' might #define 'restrict' to those words, so pick a
different name. */
#ifndef _Restrict_
-# if 199901L <= __STDC_VERSION__
-# define _Restrict_ restrict
-# elif 2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__)
+# if defined __restrict \
+ || 2 < __GNUC__ + (95 <= __GNUC_MINOR__) \
+ || __clang_major__ >= 3
# define _Restrict_ __restrict
+# elif 199901L <= __STDC_VERSION__ || defined restrict
+# define _Restrict_ restrict
# else
# define _Restrict_
# endif
#endif
-/* gcc 3.1 and up support the [restrict] syntax. Don't trust
- sys/cdefs.h's definition of __restrict_arr, though, as it
- mishandles gcc -ansi -pedantic. */
+/* For the ISO C99 syntax
+ array_name[restrict]
+ use glibc's __restrict_arr if available.
+ Otherwise, GCC 3.1 and clang support this syntax (but not in C++ mode).
+ Other ISO C99 compilers support it as well. */
#ifndef _Restrict_arr_
-# if ((199901L <= __STDC_VERSION__ \
- || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) \
- && !defined __STRICT_ANSI__)) \
- && !defined __GNUG__)
+# ifdef __restrict_arr
+# define _Restrict_arr_ __restrict_arr
+# elif ((199901L <= __STDC_VERSION__ \
+ || 3 < __GNUC__ + (1 <= __GNUC_MINOR__) \
+ || __clang_major__ >= 3) \
+ && !defined __cplusplus)
# define _Restrict_arr_ _Restrict_
# else
# define _Restrict_arr_
/* Data structure to contain attributes for thread creation. */
-#if @REPLACE_POSIX_SPAWN@
+#if @REPLACE_POSIX_SPAWN@ || (@HAVE_POSIX_SPAWNATTR_T@ && !@HAVE_POSIX_SPAWN@)
# define posix_spawnattr_t rpl_posix_spawnattr_t
#endif
-#if @REPLACE_POSIX_SPAWN@ || !@HAVE_POSIX_SPAWNATTR_T@
+#if @REPLACE_POSIX_SPAWN@ || !@HAVE_POSIX_SPAWNATTR_T@ || !@HAVE_POSIX_SPAWN@
# if !GNULIB_defined_posix_spawnattr_t
typedef struct
{
/* Data structure to contain information about the actions to be
performed in the new process with respect to file descriptors. */
-#if @REPLACE_POSIX_SPAWN@
+#if @REPLACE_POSIX_SPAWN@ || (@HAVE_POSIX_SPAWN_FILE_ACTIONS_T@ && !@HAVE_POSIX_SPAWN@)
# define posix_spawn_file_actions_t rpl_posix_spawn_file_actions_t
#endif
-#if @REPLACE_POSIX_SPAWN@ || !@HAVE_POSIX_SPAWN_FILE_ACTIONS_T@
+#if @REPLACE_POSIX_SPAWN@ || !@HAVE_POSIX_SPAWN_FILE_ACTIONS_T@ || !@HAVE_POSIX_SPAWN@
# if !GNULIB_defined_posix_spawn_file_actions_t
typedef struct
{
# endif
#endif
/* A GNU extension. Use the next free bit position. */
-#define POSIX_SPAWN_USEVFORK \
+#ifndef POSIX_SPAWN_USEVFORK
+# define POSIX_SPAWN_USEVFORK \
((POSIX_SPAWN_RESETIDS | (POSIX_SPAWN_RESETIDS - 1) \
| POSIX_SPAWN_SETPGROUP | (POSIX_SPAWN_SETPGROUP - 1) \
| POSIX_SPAWN_SETSIGDEF | (POSIX_SPAWN_SETSIGDEF - 1) \
| POSIX_SPAWN_SETSCHEDULER \
| (POSIX_SPAWN_SETSCHEDULER > 0 ? POSIX_SPAWN_SETSCHEDULER - 1 : 0)) \
+ 1)
+#endif
#if !GNULIB_defined_verify_POSIX_SPAWN_USEVFORK_no_overlap
typedef int verify_POSIX_SPAWN_USEVFORK_no_overlap
[(((POSIX_SPAWN_RESETIDS | POSIX_SPAWN_SETPGROUP
(const posix_spawnattr_t *_Restrict_ __attr,
int *_Restrict_ __schedpolicy));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (posix_spawnattr_getschedpolicy);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef posix_spawnattr_getschedpolicy
# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSCHEDPOLICY
_GL_CXXALIAS_SYS (posix_spawnattr_setschedpolicy, int,
(posix_spawnattr_t *__attr, int __schedpolicy));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (posix_spawnattr_setschedpolicy);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef posix_spawnattr_setschedpolicy
# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSCHEDPOLICY
(const posix_spawnattr_t *_Restrict_ __attr,
struct sched_param *_Restrict_ __schedparam));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (posix_spawnattr_getschedparam);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef posix_spawnattr_getschedparam
# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSCHEDPARAM
(posix_spawnattr_t *_Restrict_ __attr,
const struct sched_param *_Restrict_ __schedparam));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (posix_spawnattr_setschedparam);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef posix_spawnattr_setschedparam
# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSCHEDPARAM
int __fd,
const char *_Restrict_ __path, int __oflag, mode_t __mode));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (posix_spawn_file_actions_addopen);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef posix_spawn_file_actions_addopen
# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN
_GL_CXXALIAS_SYS (posix_spawn_file_actions_addclose, int,
(posix_spawn_file_actions_t *__file_actions, int __fd));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (posix_spawn_file_actions_addclose);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef posix_spawn_file_actions_addclose
# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE
(posix_spawn_file_actions_t *__file_actions,
int __fd, int __newfd));
# endif
+# if __GLIBC__ >= 2
_GL_CXXALIASWARN (posix_spawn_file_actions_adddup2);
+# endif
#elif defined GNULIB_POSIXCHECK
# undef posix_spawn_file_actions_adddup2
# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2
# endif
#endif
+#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@
+/* Add an action to FILE-ACTIONS which tells the implementation to call
+ 'chdir' to the given directory during the 'spawn' call. */
+# if @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define posix_spawn_file_actions_addchdir rpl_posix_spawn_file_actions_addchdir
+# endif
+_GL_FUNCDECL_RPL (posix_spawn_file_actions_addchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ const char *_Restrict_ __path)
+ __THROW _GL_ARG_NONNULL ((1, 2)));
+_GL_CXXALIAS_RPL (posix_spawn_file_actions_addchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ const char *_Restrict_ __path));
+# else
+# if !@HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR@
+_GL_FUNCDECL_SYS (posix_spawn_file_actions_addchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ const char *_Restrict_ __path)
+ __THROW _GL_ARG_NONNULL ((1, 2)));
+# endif
+_GL_CXXALIAS_SYS (posix_spawn_file_actions_addchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ const char *_Restrict_ __path));
+# endif
+_GL_CXXALIASWARN (posix_spawn_file_actions_addchdir);
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_addchdir
+# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDCHDIR
+_GL_WARN_ON_USE (posix_spawn_file_actions_addchdir,
+ "posix_spawn_file_actions_addchdir is unportable - "
+ "use gnulib module posix_spawn_file_actions_addchdir for portability");
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@
+/* Add an action to FILE-ACTIONS which tells the implementation to call
+ 'fchdir' to the given directory during the 'spawn' call. */
+# if @REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define posix_spawn_file_actions_addfchdir rpl_posix_spawn_file_actions_addfchdir
+# endif
+_GL_FUNCDECL_RPL (posix_spawn_file_actions_addfchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ int __fd)
+ __THROW _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (posix_spawn_file_actions_addfchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ int __fd));
+# else
+# if !@HAVE_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR@
+_GL_FUNCDECL_SYS (posix_spawn_file_actions_addfchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ int __fd)
+ __THROW _GL_ARG_NONNULL ((1)));
+# endif
+_GL_CXXALIAS_SYS (posix_spawn_file_actions_addfchdir, int,
+ (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ int __fd));
+# endif
+_GL_CXXALIASWARN (posix_spawn_file_actions_addfchdir);
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_addfchdir
+# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDFCHDIR
+_GL_WARN_ON_USE (posix_spawn_file_actions_addfchdir,
+ "posix_spawn_file_actions_addfchdir is unportable - "
+ "use gnulib module posix_spawn_file_actions_addfchdir for portability");
+# endif
+#endif
+
#endif /* _@GUARD_PREFIX@_SPAWN_H */
#endif /* _@GUARD_PREFIX@_SPAWN_H */
+#endif
projects / platform / upstream / m4.git / blobdiff