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spawn.h

Section: POSIX Programmer's Manual (0P)
Updated: 2013
Index Return to Main Contents
 

PROLOG

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

spawn.h --- spawn (ADVANCED REALTIME)  

SYNOPSIS

#include <spawn.h>
 

DESCRIPTION

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

None.  

RATIONALE

None.  

FUTURE DIRECTIONS

None.  

SEE ALSO

<sched.h>, <semaphore.h>, <signal.h>, <sys_types.h> The System Interfaces volume of POSIX.1-2008, posix_spawn(), posix_spawn_file_actions_addclose(), posix_spawn_file_actions_adddup2(), posix_spawn_file_actions_destroy(), posix_spawnattr_destroy(), posix_spawnattr_getflags(), posix_spawnattr_getpgroup(), posix_spawnattr_getschedparam(), posix_spawnattr_getschedpolicy(), posix_spawnattr_getsigdefault(), posix_spawnattr_getsigmask()  

COPYRIGHT

Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/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 .


 

Index

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


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