SCHED_YIELD(2) | System Calls Manual | SCHED_YIELD(2)

# NAME

`sched_yield` — yield the processor

# SYNOPSIS

`#include <sched.h>`

int
`sched_yield`(void);

# DESCRIPTION

The `sched_yield`() function makes the current thread yield the processor and be put at the end of its run queue without altering its priority.

# RETURN VALUES

Upon successful completion, the value 0 is returned; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

# STANDARDS

The `sched_yield`() function conforms to IEEE Std 1003.1-2008 (“POSIX.1”).

# HISTORY

The `sched_yield`() system call appeared in OpenBSD 4.2.

# CAVEATS

The effect of `sched_yield`() is only precisely defined for real-time scheduling classes, none of which are currently supported by OpenBSD.

November 14, 2014 | Debian