sched(3HEAD)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

NAME

sched– execution scheduling

SYNOPSIS

#include <sched.h> 

DESCRIPTION

The <sched.h> header defines the sched_param structure, which contains the scheduling parameters required for implementation of each supported scheduling policy. This structure contains at least the following member:

int    sched_priority    process execution scheduling priority

Each process is controlled by an associated scheduling policy and priority. Associated with each policy is a priority range. Each policy definition specifies the minimum priority range for that policy. The priority ranges for each policy may overlap the priority ranges of other policies.

Three scheduling policies are defined; others may be defined by the system. The three standard policies are indicated by the values of the following symbolic constants:

SCHED_FIFO

First in-first out (FIFO) scheduling policy.

SCHED_RR

Round robin scheduling policy.

SCHED_OTHER

Another scheduling policy.

The values of these constants are distinct.

Inclusion of the <sched.h> header will make visible symbols defined in the header <time.h>.

SEE ALSO

time(3HEAD)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO