Gets and sets the spawn-schedpolicy attribute of a spawn attributes object.
#include <spawn.h>
#include <sched.h>
int posix_spawnattr_getschedpolicy(const posix_spawnattr_t *
restrict attr, int *restrict schedpolicy);
int posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr,
int schedpolicy);
The posix_spawnattr_getschedpolicy subroutine gets the value of the spawn-schedpolicy attribute from the attributes object referenced by attr.
The posix_spawnattr_setschedpolicy subroutine sets the spawn-schedpolicy attribute in an initialized attributes object referenced by attr.
The spawn-schedpolicy attribute represents the scheduling policy to be assigned to the new process image in a spawn operation (if POSIX_SPAWN_SETSCHEDULER is set in the spawn-flags attribute). The default value of this attribute is unspecified.
Upon successful completion, the posix_spawnattr_getschedpolicy subroutine returns 0 and stores the value of the spawn-schedpolicy attribute of attr into the object referenced by the schedpolicy parameter; otherwise, an error number is returned to indicate the error.
Upon successful completion, posix_spawnattr_setschedpolicy returns 0; otherwise, an error number is returned to indicate the error.
Item | Description |
---|---|
EINVAL | The value specified by attr is invalid. |
Item | Description |
---|---|
EINVAL | The value of the attribute being set is not valid. |