semaphore_signal_all

Function - Wake up all threads blocked on a semaphore.

SYNOPSIS

kern_return_t   semaphore_signal_all
                (semaphore_t                          semaphore);

PARAMETERS

semaphore

[in send right] The port naming the semaphore to be signalled.

DESCRIPTION

The semaphore_signal_all function wakes up all of the threads blocked on the semaphore. The semaphore count is reset to zero.

RETURN VALUES

KERN_INVALID_ARGUMENT

The specified semaphore is invalid.

KERN_TERMINATED

The specified semaphore has been destroyed.

KERN_SUCCESS

The semaphore has been signalled.

RELATED INFORMATION

Functions: semaphore_create, semaphore_destroy, semaphore_signal,