## NAME

sched_yield - yield processor

## SYNOPSIS

int sched_yield(void);

Callable from an ISR.

## DESCRIPTION

sched_yield() forces the running process to relinquish the processor until the thread again becomes the head of its priority list.

## RETURN VALUES

If successful, sched_yield() returns 0, otherwise, it returns -1, and sets errno to indicate the error condition.

## ERRORS

ENOSYS
  sched_yield() is not supported by this implementation.

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