/**
* @brief Function to sit on the bottom of the thread stack
*
* @param in_data is a thrgrp_data_t, with tmp loaded with the function
* the user wants to run, the argument to call the function on, and
* the thread group this new thread is to be spawned in
* @return doesn't
*/
static void *thrgrp_bottom(void *in_data){
thrgrp_data_t *data = (thrgrp_data_t *) in_data;
void *(*func)(void *) = data->tmp.func;
void *arg = data->tmp.arg;
thrgrp_group_t *tg = data->tmp.tg;
void * ret;
/* now that we have all of the data out of data,
we'll use it as our queueing element */
data->qel.next = NULL;
data->qel.tid = thr_getid();
/* runthe code we were asked to run */
ret = func(arg);
/* insert ourselves into the zombie queue */
mutex_lock(&(tg->lock));
if(tg->zombie_in)
tg->zombie_in->next = &(data->qel);
tg->zombie_in = &(data->qel);
if(tg->zombie_out == NULL)
tg->zombie_out = &(data->qel);
/* signal a waiter to come clean up our zombie */
cond_signal(&(tg->cv));
mutex_unlock(&(tg->lock));
/* if we return with ret, should exit with ret */
return ret;
}
void
_pthread_rt()
{
PTHREAD_LOG("initializing POSIX thread runtime (debug build)");
_pthread_initialized = TRUE;
thread0 = malloc( sizeof(struct pthread) );
thread0->pth_id = thr_getid();
pthread_spin_init(&_pthread_slock, PTHREAD_PROCESS_PRIVATE);
}
int main()
{
thr_init(16 * PAGE_SIZE);
(void) thr_create(waiter, (void *) thr_getid());
//sleep(10); /* optional, of course!! */
thr_exit((void *)'!');
while(1)
continue; /* placate compiler portably */
}
