/* Definitions for POSIX spawn interface.
- Copyright (C) 2000, 2003, 2004, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2003-2004, 2008-2010 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
#ifndef _GL_SPAWN_H
+#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
+#endif
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_SPAWN_H@
#ifndef _GL_SPAWN_H
#define _GL_SPAWN_H
-#include <sched.h>
-#include <signal.h>
+/* Get definitions of 'struct sched_param' and 'sigset_t'.
+ But avoid namespace pollution on glibc systems. */
+#ifndef __GLIBC__
+# include <sched.h>
+# include <signal.h>
+#endif
+
#include <sys/types.h>
#ifndef __THROW
sys/cdefs.h's definition of __restrict_arr, though, as it
mishandles gcc -ansi -pedantic. */
#ifndef _Restrict_arr_
-# if ((199901L <= __STDC_VERSION__ \
- || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) \
- && !__STRICT_ANSI__)) \
+# if ((199901L <= __STDC_VERSION__ \
+ || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) \
+ && !__STRICT_ANSI__)) \
&& !defined __GNUG__)
# define _Restrict_arr_ _Restrict_
# else
# endif
#endif
-/* The definition of GL_LINK_WARNING is copied here. */
+/* The definition of _GL_ARG_NONNULL is copied here. */
+
+/* The definition of _GL_WARN_ON_USE is copied here. */
/* Data structure to contain attributes for thread creation. */
#if @REPLACE_POSIX_SPAWN@
# define posix_spawnattr_t rpl_posix_spawnattr_t
#endif
+#if @REPLACE_POSIX_SPAWN@ || !@HAVE_POSIX_SPAWNATTR_T@
typedef struct
{
short int _flags;
int _policy;
int __pad[16];
} posix_spawnattr_t;
+#endif
/* Data structure to contain information about the actions to be
#if @REPLACE_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@
typedef struct
{
int _allocated;
struct __spawn_action *_actions;
int __pad[16];
} posix_spawn_file_actions_t;
+#endif
/* Flags to be set in the `posix_spawnattr_t'. */
-#undef POSIX_SPAWN_RESETIDS
-#define POSIX_SPAWN_RESETIDS 0x01
-#undef POSIX_SPAWN_SETPGROUP
-#define POSIX_SPAWN_SETPGROUP 0x02
-#undef POSIX_SPAWN_SETSIGDEF
-#define POSIX_SPAWN_SETSIGDEF 0x04
-#undef POSIX_SPAWN_SETSIGMASK
-#define POSIX_SPAWN_SETSIGMASK 0x08
-#undef POSIX_SPAWN_SETSCHEDPARAM
-#define POSIX_SPAWN_SETSCHEDPARAM 0x10
-#undef POSIX_SPAWN_SETSCHEDULER
-#define POSIX_SPAWN_SETSCHEDULER 0x20
-/* A GNU extension. */
-#undef POSIX_SPAWN_USEVFORK
-#define POSIX_SPAWN_USEVFORK 0x40
+#if @REPLACE_POSIX_SPAWN@
+/* Use the values from the system, for better compatibility. */
+/* But this implementation does not support AIX extensions. */
+# undef POSIX_SPAWN_FORK_HANDLERS
+#else
+# define POSIX_SPAWN_RESETIDS 0x01
+# define POSIX_SPAWN_SETPGROUP 0x02
+# define POSIX_SPAWN_SETSIGDEF 0x04
+# define POSIX_SPAWN_SETSIGMASK 0x08
+# define POSIX_SPAWN_SETSCHEDPARAM 0x10
+# define POSIX_SPAWN_SETSCHEDULER 0x20
+#endif
+/* A GNU extension. Use the next free bit position. */
+#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_SETSIGMASK | (POSIX_SPAWN_SETSIGMASK - 1) \
+ | POSIX_SPAWN_SETSCHEDPARAM | (POSIX_SPAWN_SETSCHEDPARAM - 1) \
+ | POSIX_SPAWN_SETSCHEDULER | (POSIX_SPAWN_SETSCHEDULER - 1)) \
+ + 1)
+typedef int verify_POSIX_SPAWN_USEVFORK_no_overlap
+ [2 * (((POSIX_SPAWN_RESETIDS | POSIX_SPAWN_SETPGROUP
+ | POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETSIGMASK
+ | POSIX_SPAWN_SETSCHEDPARAM | POSIX_SPAWN_SETSCHEDULER)
+ & POSIX_SPAWN_USEVFORK) == 0) - 1];
#ifdef __cplusplus
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawn (pid_t *_Restrict_ __pid,
- const char *_Restrict_ __path,
- const posix_spawn_file_actions_t *_Restrict_ __file_actions,
- const posix_spawnattr_t *_Restrict_ __attrp,
- char *const argv[_Restrict_arr_],
- char *const envp[_Restrict_arr_]);
+ const char *_Restrict_ __path,
+ const posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ const posix_spawnattr_t *_Restrict_ __attrp,
+ char *const argv[_Restrict_arr_],
+ char *const envp[_Restrict_arr_])
+ _GL_ARG_NONNULL ((2, 5, 6));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn
+# if HAVE_RAW_DECL_POSIX_SPAWN
+_GL_WARN_ON_USE (posix_spawn, "posix_spawn is unportable - "
+ "use gnulib module posix_spawn for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnp (pid_t *__pid, const char *__file,
- const posix_spawn_file_actions_t *__file_actions,
- const posix_spawnattr_t *__attrp,
- char *const argv[], char *const envp[]);
+ const posix_spawn_file_actions_t *__file_actions,
+ const posix_spawnattr_t *__attrp,
+ char *const argv[], char *const envp[])
+ _GL_ARG_NONNULL ((2, 5, 6));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnp
+# if HAVE_RAW_DECL_POSIX_SPAWNP
+_GL_WARN_ON_USE (posix_spawnp, "posix_spawnp is unportable - "
+ "use gnulib module posix_spawnp for portability");
# endif
#endif
# define posix_spawnattr_init rpl_posix_spawnattr_init
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
-extern int posix_spawnattr_init (posix_spawnattr_t *__attr) __THROW;
+extern int posix_spawnattr_init (posix_spawnattr_t *__attr)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_init
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_INIT
+_GL_WARN_ON_USE (posix_spawnattr_init, "posix_spawnattr_init is unportable - "
+ "use gnulib module posix_spawnattr_init for portability");
# endif
#endif
# define posix_spawnattr_destroy rpl_posix_spawnattr_destroy
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
-extern int posix_spawnattr_destroy (posix_spawnattr_t *__attr) __THROW;
+extern int posix_spawnattr_destroy (posix_spawnattr_t *__attr)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_destroy
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_DESTROY
+_GL_WARN_ON_USE (posix_spawnattr_destroy, "posix_spawnattr_destroy is unportable - "
+ "use gnulib module posix_spawnattr_destroy for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_getsigdefault (const posix_spawnattr_t *_Restrict_ __attr,
- sigset_t *_Restrict_ __sigdefault)
- __THROW;
+ sigset_t *_Restrict_ __sigdefault)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_getsigdefault
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSIGDEFAULT
+_GL_WARN_ON_USE (posix_spawnattr_getsigdefault, "posix_spawnattr_getsigdefault is unportable - "
+ "use gnulib module posix_spawnattr_getsigdefault for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_setsigdefault (posix_spawnattr_t *_Restrict_ __attr,
- const sigset_t *_Restrict_ __sigdefault)
- __THROW;
+ const sigset_t *_Restrict_ __sigdefault)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_setsigdefault
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSIGDEFAULT
+_GL_WARN_ON_USE (posix_spawnattr_setsigdefault, "posix_spawnattr_setsigdefault is unportable - "
+ "use gnulib module posix_spawnattr_setsigdefault for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_getsigmask (const posix_spawnattr_t *_Restrict_ __attr,
- sigset_t *_Restrict_ __sigmask) __THROW;
+ sigset_t *_Restrict_ __sigmask)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_getsigmask
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSIGMASK
+_GL_WARN_ON_USE (posix_spawnattr_getsigmask, "posix_spawnattr_getsigmask is unportable - "
+ "use gnulib module posix_spawnattr_getsigmask for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_setsigmask (posix_spawnattr_t *_Restrict_ __attr,
- const sigset_t *_Restrict_ __sigmask)
- __THROW;
+ const sigset_t *_Restrict_ __sigmask)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_setsigmask
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSIGMASK
+_GL_WARN_ON_USE (posix_spawnattr_setsigmask, "posix_spawnattr_setsigmask is unportable - "
+ "use gnulib module posix_spawnattr_setsigmask for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_getflags (const posix_spawnattr_t *_Restrict_ __attr,
- short int *_Restrict_ __flags) __THROW;
+ short int *_Restrict_ __flags)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_getflags
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETFLAGS
+_GL_WARN_ON_USE (posix_spawnattr_getflags, "posix_spawnattr_getflags is unportable - "
+ "use gnulib module posix_spawnattr_getflags for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_setflags (posix_spawnattr_t *__attr,
- short int __flags) __THROW;
+ short int __flags)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_setflags
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETFLAGS
+_GL_WARN_ON_USE (posix_spawnattr_setflags, "posix_spawnattr_setflags is unportable - "
+ "use gnulib module posix_spawnattr_setflags for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_getpgroup (const posix_spawnattr_t *_Restrict_ __attr,
- pid_t *_Restrict_ __pgroup)
- __THROW;
+ pid_t *_Restrict_ __pgroup)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_getpgroup
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETPGROUP
+_GL_WARN_ON_USE (posix_spawnattr_getpgroup, "posix_spawnattr_getpgroup is unportable - "
+ "use gnulib module posix_spawnattr_getpgroup for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_setpgroup (posix_spawnattr_t *__attr,
- pid_t __pgroup) __THROW;
+ pid_t __pgroup)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_setpgroup
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETPGROUP
+_GL_WARN_ON_USE (posix_spawnattr_setpgroup, "posix_spawnattr_setpgroup is unportable - "
+ "use gnulib module posix_spawnattr_setpgroup for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_getschedpolicy (const posix_spawnattr_t *_Restrict_ __attr,
- int *_Restrict_ __schedpolicy)
- __THROW;
+ int *_Restrict_ __schedpolicy)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_getschedpolicy
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSCHEDPOLICY
+_GL_WARN_ON_USE (posix_spawnattr_getschedpolicy, "posix_spawnattr_getschedpolicy is unportable - "
+ "use gnulib module posix_spawnattr_getschedpolicy for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_setschedpolicy (posix_spawnattr_t *__attr,
- int __schedpolicy) __THROW;
+ int __schedpolicy)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_setschedpolicy
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSCHEDPOLICY
+_GL_WARN_ON_USE (posix_spawnattr_setschedpolicy, "posix_spawnattr_setschedpolicy is unportable - "
+ "use gnulib module posix_spawnattr_setschedpolicy for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_getschedparam (const posix_spawnattr_t *_Restrict_ __attr,
- struct sched_param *_Restrict_ __schedparam) __THROW;
+ struct sched_param *_Restrict_ __schedparam)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_getschedparam
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_GETSCHEDPARAM
+_GL_WARN_ON_USE (posix_spawnattr_getschedparam, "posix_spawnattr_getschedparam is unportable - "
+ "use gnulib module posix_spawnattr_getschedparam for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawnattr_setschedparam (posix_spawnattr_t *_Restrict_ __attr,
- const struct sched_param *_Restrict_ __schedparam) __THROW;
+ const struct sched_param *_Restrict_ __schedparam)
+ __THROW _GL_ARG_NONNULL ((1, 2));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawnattr_setschedparam
+# if HAVE_RAW_DECL_POSIX_SPAWNATTR_SETSCHEDPARAM
+_GL_WARN_ON_USE (posix_spawnattr_setschedparam, "posix_spawnattr_setschedparam is unportable - "
+ "use gnulib module posix_spawnattr_setschedparam for portability");
# endif
#endif
# define posix_spawn_file_actions_init rpl_posix_spawn_file_actions_init
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
-extern int posix_spawn_file_actions_init (posix_spawn_file_actions_t *__file_actions) __THROW;
+extern int posix_spawn_file_actions_init (posix_spawn_file_actions_t *__file_actions)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_init
+# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_INIT
+_GL_WARN_ON_USE (posix_spawn_file_actions_init, "posix_spawn_file_actions_init is unportable - "
+ "use gnulib module posix_spawn_file_actions_init for portability");
# endif
#endif
# define posix_spawn_file_actions_destroy rpl_posix_spawn_file_actions_destroy
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
-extern int posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *__file_actions) __THROW;
+extern int posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *__file_actions)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_destroy
+# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_DESTROY
+_GL_WARN_ON_USE (posix_spawn_file_actions_destroy, "posix_spawn_file_actions_destroy is unportable - "
+ "use gnulib module posix_spawn_file_actions_destroy for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawn_file_actions_addopen (posix_spawn_file_actions_t *_Restrict_ __file_actions,
- int __fd,
- const char *_Restrict_ __path,
- int __oflag, mode_t __mode)
- __THROW;
+ int __fd,
+ const char *_Restrict_ __path,
+ int __oflag, mode_t __mode)
+ __THROW _GL_ARG_NONNULL ((1, 3));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_addopen
+# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN
+_GL_WARN_ON_USE (posix_spawn_file_actions_addopen, "posix_spawn_file_actions_addopen is unportable - "
+ "use gnulib module posix_spawn_file_actions_addopen for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawn_file_actions_addclose (posix_spawn_file_actions_t *__file_actions,
- int __fd)
- __THROW;
+ int __fd)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_addclose
+# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE
+_GL_WARN_ON_USE (posix_spawn_file_actions_addclose, "posix_spawn_file_actions_addclose is unportable - "
+ "use gnulib module posix_spawn_file_actions_addclose for portability");
# endif
#endif
# endif
# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
extern int posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t *__file_actions,
- int __fd, int __newfd) __THROW;
+ int __fd, int __newfd)
+ __THROW _GL_ARG_NONNULL ((1));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef posix_spawn_file_actions_adddup2
+# if HAVE_RAW_DECL_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2
+_GL_WARN_ON_USE (posix_spawn_file_actions_adddup2, "posix_spawn_file_actions_adddup2 is unportable - "
+ "use gnulib module posix_spawn_file_actions_adddup2 for portability");
# endif
#endif
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