// thread relinquish use of the processor
// and wait in the ready queuee
void th_yield()
{
entry_section();
if (threads[curr]->state == RUNNING)
rq_push(curr);
else if (threads[curr]->state == WAITING)
wq_push(curr);
// transfer the control to the next thread
if (rq_begin != rq_end) {
int old = curr;
curr = rq_front();
rq_pop();
threads[curr]->state = RUNNING;
exit_section();
th_swap(threads[old], threads[curr]);
entry_section();
recycle_dead();
}
exit_section();
}
critical void getRepPacket(packet_t *thePacket) {
uint8_t plen, i;
uint8_t * packet_ptr = (uint8_t *) thePacket;
plen = rq_front() + HEADER_SIZE;
for (i = 0; i < plen; i++) {
packet_ptr[i] = rq_pop();
}
newRepPacket--;
// XXX DEBUGGING
//newUARTPacket++;
}
void libevent_token_thread( int fd, short ev,void *arg){
uint64_t u;
ssize_t s;
s = read(token_efd, &u, sizeof(uint64_t));
if (s != sizeof(uint64_t)){
printf("s is error\n");
}
notify_token_thread = NT_WORKING;
do{
RQ *rq_item = rq_pop();
if(rq_item == NULL){
/* DEBUG("rq_item is null");*/
break;
}
if(rq_item->isjob == JOB_HAS) {
WTQ *work_child = wtq_queue_tail;
FIND_WTQ(work_child, JOB_FREE);
if(work_child->isjob == JOB_FREE){
rq_item->isjob = JOB_WORKING;
work_child->rq_item = rq_item;
work_child->isjob = JOB_HAS;
LIBEVENT_WORK_THREAD *thread;
thread = work_threads + work_child->no;
if(thread == NULL){
DEBUG("thread null ");
rq_item->isjob = JOB_HAS;
work_child->isjob = JOB_FREE;
break;
}
if(write(thread->notify_write_fd, "", 1) != 1){
DEBUG("write thread error");
}
}
}
else{
DEBUG("break");
break;
}
}while(1);
notify_token_thread = NT_FREE;
}