NAME
posix_spawnattr_getflags
posix_spawnattr_setflags —
get and set the spawn-flags attribute of a spawn attributes
object (ADVANCED REALTIME)
SYNOPSIS
int posix_spawnattr_getflags(const posix_spawnattr_t *restrict attr,
short *restrict flags);
int posix_spawnattr_setflags(posix_spawnattr_t *attr, short flags);
DESCRIPTION
The posix_spawnattr_getflags () function
shall obtain the value of the spawn-flags attribute from
the attributes object referenced by attr.
The posix_spawnattr_setflags () function shall set the spawn-flags attribute in an initialized attributes object referenced by attr.
The spawn-flags attribute is used to indicate which process attributes are to be changed in the new process image when invoking posix_spawn(3) or posix_spawnp(3). It is the bitwise-inclusive OR of zero or more of the following flags:
POSIX_SPAWN_RESETIDS POSIX_SPAWN_SETPGROUP POSIX_SPAWN_SETSIGDEF POSIX_SPAWN_SETSIGMASK [PS] POSIX_SPAWN_SETSCHEDPARAM POSIX_SPAWN_SETSCHEDULER
These flags are defined in <spawn.h>. The default value of this attribute shall be as if no flags were set.
RETURN VALUE
Upon successful completion,
posix_spawnattr_getflags () shall return zero and
store the value of the spawn-flags attribute of
attr into the object referenced by the
flags
parameter; otherwise, an error number shall be returned to indicate the
error.
Upon successful completion, posix_spawnattr_setflags () shall return zero; otherwise, an error number shall be returned to indicate the error.
ERRORS
These functions may fail if:
- [EINVAL]
- The value specified by attr is invalid.
The posix_spawnattr_setflags () function may fail if:
- [EINVAL]
- The value of the attribute being set is not valid.
EXAMPLES
None.
APPLICATION USAGE
These functions are part of the Spawn option and need not be provided on all implementations.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
posix_spawn(3), posix_spawnattr_destroy(3), posix_spawnattr_getsigdefault(3), posix_spawnattr_getpgroup(3), posix_spawnattr_getschedparam(3), posix_spawnattr_getschedpolicy(3), posix_spawnattr_getsigmask(3)
XBD <spawn.h>
CHANGE HISTORY
First released in Issue 6. Derived from IEEE Std 1003.1d-1999.