mx_futex_wake

NAME

futex_wake - Wake some number of threads waiting on a futex.

SYNOPSIS

#include <magenta/syscalls.h>

mx_status_t mx_futex_wake(const mx_futex_t* value_ptr, uint32_t wake_count);

DESCRIPTION

Waking a futex causes wake_count threads waiting on the value_ptr futex to be woken up.

Waking up zero threads is not an error condition. Passing in an unallocated address for value_ptr is not an error condition.

RETURN VALUE

futex_wake() returns MX_OK on success.

ERRORS

MX_ERR_INVALID_ARGS value_ptr is not aligned.

SEE ALSO

futex_requeue, futex_wait.