int
pthread_cancel(pthread_t thread)
{
_rthread_setflag(thread, THREAD_CANCELLED);
return (0);
}
void
_enter_delayed_cancel(pthread_t self)
{
if (self->flags & THREAD_CANCEL_ENABLE) {
self->delayed_cancel = 0;
self->cancel_point++;
if (IS_CANCELED(self))
pthread_exit(PTHREAD_CANCELED);
_rthread_setflag(self, THREAD_CANCEL_DELAY);
}
}
int
pthread_setcanceltype(int type, int *oldtypep)
{
pthread_t self = pthread_self();
int oldtype;
oldtype = self->flags & THREAD_CANCEL_DEFERRED ?
PTHREAD_CANCEL_DEFERRED : PTHREAD_CANCEL_ASYNCHRONOUS;
if (type == PTHREAD_CANCEL_DEFERRED) {
_rthread_setflag(self, THREAD_CANCEL_DEFERRED);
pthread_testcancel();
} else if (type == PTHREAD_CANCEL_ASYNCHRONOUS) {
_rthread_clearflag(self, THREAD_CANCEL_DEFERRED);
} else {
return (EINVAL);
}
if (oldtypep)
*oldtypep = oldtype;
return (0);
}
int
pthread_setcancelstate(int state, int *oldstatep)
{
pthread_t self = pthread_self();
int oldstate;
oldstate = self->flags & THREAD_CANCEL_ENABLE ?
PTHREAD_CANCEL_ENABLE : PTHREAD_CANCEL_DISABLE;
if (state == PTHREAD_CANCEL_ENABLE) {
_rthread_setflag(self, THREAD_CANCEL_ENABLE);
pthread_testcancel();
} else if (state == PTHREAD_CANCEL_DISABLE) {
_rthread_clearflag(self, THREAD_CANCEL_ENABLE);
} else {
return (EINVAL);
}
if (oldstatep)
*oldstatep = oldstate;
return (0);
}
void
pthread_exit(void *retval)
{
struct rthread_cleanup_fn *clfn;
pid_t tid;
struct stack *stack;
pthread_t thread = pthread_self();
thread->retval = retval;
for (clfn = thread->cleanup_fns; clfn; ) {
struct rthread_cleanup_fn *oclfn = clfn;
clfn = clfn->next;
oclfn->fn(oclfn->arg);
free(oclfn);
}
_rthread_tls_destructors(thread);
_spinlock(&_thread_lock);
LIST_REMOVE(thread, threads);
_spinunlock(&_thread_lock);
_sem_post(&thread->donesem);
stack = thread->stack;
tid = thread->tid;
if (thread->flags & THREAD_DETACHED)
_rthread_free(thread);
else
_rthread_setflag(thread, THREAD_DONE);
if (tid != _initial_thread.tid)
_rthread_add_to_reaper(tid, stack);
_rthread_reaper();
threxit(0);
for(;;);
}