POSIX_SPAWNATTR_SETFLAGS(3) Library Functions Manual POSIX_SPAWNATTR_SETFLAGS(3)

posix_spawnattr_getflags posix_spawnattr_setflagsget and set the spawn-flags attribute of a spawn attributes object (ADVANCED REALTIME)


#include <spawn.h>

int posix_spawnattr_getflags(const posix_spawnattr_t *restrict attr,
       short *restrict flags);
int posix_spawnattr_setflags(posix_spawnattr_t *attr, short flags);

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_SETSCHEDPARAM POSIX_SPAWN_SETSCHEDULER POSIX_SPAWN_SETSID POSIX_SPAWN_SETSIGDEF POSIX_SPAWN_SETSIGMASK

These flags are defined in <spawn.h>. The default value of this attribute shall be as if no flags were set.

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 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.

These functions may fail if:

The value specified by attr is invalid.

The posix_spawnattr_setflags () function may fail if:

The value of the attribute being set is not valid.

None.

These functions are part of the Spawn option and need not be provided on all implementations.

None.

None.

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>

First released in Issue 6. Derived from IEEE Std 1003.1d-1999.

Austin Group Defect 1044 is applied, adding POSIX_SPAWN_SETSID.

June 14, 2024 posix.fail