spawn.h(0p) — Linux manual page

PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

spawn.h(0P)             POSIX Programmer's Manual            spawn.h(0P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior),
       or the interface may not be implemented on Linux.

NAME         top

       spawn.h — spawn (ADVANCED REALTIME)

SYNOPSIS         top

       #include <spawn.h>

DESCRIPTION         top

       The <spawn.h> header shall define the posix_spawnattr_t and
       posix_spawn_file_actions_t types used in performing spawn
       operations.

       The <spawn.h> header shall define the mode_t and pid_t types as
       described in <sys/types.h>.

       The <spawn.h> header shall define the sigset_t type as described
       in <signal.h>.

       The tag sched_param shall be declared as naming an incomplete
       structure type, the contents of which are described in the
       <sched.h> header.

       The <spawn.h> header shall define the following symbolic
       constants for use as the flags that may be set in a
       posix_spawnattr_t object using the posix_spawnattr_setflags()
       function:

       POSIX_SPAWN_RESETIDS
       POSIX_SPAWN_SETPGROUP
       POSIX_SPAWN_SETSCHEDPARAM
       POSIX_SPAWN_SETSCHEDULER
       POSIX_SPAWN_SETSIGDEF
       POSIX_SPAWN_SETSIGMASK

       The following shall be declared as functions and may also be
       defined as macros. Function prototypes shall be provided.

           int   posix_spawn(pid_t *restrict, const char *restrict,
                     const posix_spawn_file_actions_t *,
                     const posix_spawnattr_t *restrict, char *const [restrict],
                     char *const [restrict]);
           int   posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *,
                     int);
           int   posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *,
                     int, int);
           int   posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *restrict,
                     int, const char *restrict, int, mode_t);
           int   posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *);
           int   posix_spawn_file_actions_init(posix_spawn_file_actions_t *);
           int   posix_spawnattr_destroy(posix_spawnattr_t *);
           int   posix_spawnattr_getflags(const posix_spawnattr_t *restrict,
                     short *restrict);
           int   posix_spawnattr_getpgroup(const posix_spawnattr_t *restrict,
                     pid_t *restrict);
           int   posix_spawnattr_getschedparam(const posix_spawnattr_t *restrict,
                     struct sched_param *restrict);
           int   posix_spawnattr_getschedpolicy(const posix_spawnattr_t *restrict,
                     int *restrict);
           int   posix_spawnattr_getsigdefault(const posix_spawnattr_t *restrict,
                     sigset_t *restrict);
           int   posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict,
                     sigset_t *restrict);
           int   posix_spawnattr_init(posix_spawnattr_t *);
           int   posix_spawnattr_setflags(posix_spawnattr_t *, short);
           int   posix_spawnattr_setpgroup(posix_spawnattr_t *, pid_t);
           int   posix_spawnattr_setschedparam(posix_spawnattr_t *restrict,
                     const struct sched_param *restrict);
           int   posix_spawnattr_setschedpolicy(posix_spawnattr_t *, int);
           int   posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict,
                     const sigset_t *restrict);
           int   posix_spawnattr_setsigmask(posix_spawnattr_t *restrict,
                     const sigset_t *restrict);
           int   posix_spawnp(pid_t *restrict, const char *restrict,
                     const posix_spawn_file_actions_t *,
                     const posix_spawnattr_t *restrict,
                     char *const [restrict], char *const [restrict]);

       Inclusion of the <spawn.h> header may make visible symbols
       defined in the <sched.h> and <signal.h> headers.

       The following sections are informative.

APPLICATION USAGE         top

       None.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       sched.h(0p), semaphore.h(0p), signal.h(0p), sys_types.h(0p)

       The System Interfaces volume of POSIX.1‐2017, posix_spawn(3p),
       posix_spawn_file_actions_addclose(3p),
       posix_spawn_file_actions_adddup2(3p),
       posix_spawn_file_actions_destroy(3p),
       posix_spawnattr_destroy(3p), posix_spawnattr_getflags(3p),
       posix_spawnattr_getpgroup(3p), posix_spawnattr_getschedparam(3p),
       posix_spawnattr_getschedpolicy(3p),
       posix_spawnattr_getsigdefault(3p), posix_spawnattr_getsigmask(3p)

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 by the Institute of Electrical and Electronics
       Engineers, Inc and The Open Group.  In the event of any
       discrepancy between this version and the original IEEE and The
       Open Group Standard, the original IEEE and The Open Group
       Standard is the referee document. The original Standard can be
       obtained online at http://www.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                       spawn.h(0P)

Pages that refer to this page: posix_spawn(3p)posix_spawnattr_destroy(3p)posix_spawnattr_getflags(3p)posix_spawnattr_getpgroup(3p)posix_spawnattr_getschedparam(3p)posix_spawnattr_getschedpolicy(3p)posix_spawnattr_getsigdefault(3p)posix_spawnattr_getsigmask(3p)posix_spawn_file_actions_addclose(3p)posix_spawn_file_actions_adddup2(3p)posix_spawn_file_actions_destroy(3p)