qthread_writeF - Man Page

#include <qthread.h>

int
qthread_writeF (aligned_t * restrict dest, const aligned_t * restrict src);

int
qthread_writeF_const (aligned_t *dest, aligned_t src);

These functions are a cross between qthread_fill() and qthread_writeEF(). They do not wait for memory to become empty, but perform the write and set the state to full atomically (with respect to other FEB-based actions). Data is read from src and written to dest.

The semantics of writeF are:

This, and all other FEB-related functions currently operate exclusively on aligned data.

On success, the memory address dest is marked full, the address dest is filled with the contents of src and 0 is returned. On error, a non-zero error code is returned.

ENOMEM

Not enough memory could be allocated for bookkeeping structures.

qthread_empty(3), qthread_fill(3), qthread_writeEF(3), qthread_readFF(3), qthread_readFE(3), qthread_lock(3), qthread_unlock(3)

qthread_empty(3), qthread_feb_status(3), qthread_lock(3), qthread_readFE(3), qthread_readFF(3), qthread_writeEF(3).