FreeBSD manual
download PDF document: sched_yield.2.pdf
SCHED_YIELD(2) FreeBSD System Calls Manual SCHED_YIELD(2)
NAME
sched_yield - yield processor
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sched.h>
int
sched_yield(void);
DESCRIPTION
The sched_yield() system call forces the running process to relinquish
the processor until it again becomes the head of its process list. It
takes no arguments.
RETURN VALUES
The sched_yield() function returns the value 0 if successful; otherwise
the value -1 is returned and the global variable errno is set to indicate
the error.
ERRORS
On failure errno will be set to the corresponding value:
[ENOSYS] The system is not configured to support this
functionality.
STANDARDS
The sched_yield() system call conforms to IEEE Std 1003.1b-1993
("POSIX.1b").
FreeBSD 14.2-RELEASE March 12, 1998 FreeBSD 14.2-RELEASE