/*===========================================================================*
* key_c *
*===========================================================================*/
static void *key_c(void *arg)
{
/* The only thing that this thread should do, is set a value. */
if (mthread_setspecific(key[0], (void *) mthread_self()) != 0) err(19, 1);
mthread_yield();
if (!mthread_equal((thread_t) mthread_getspecific(key[0]), mthread_self()))
err(19, 2);
return(NULL);
}
static void * threadfunc(void * arg)
{
char *name = arg;
printf("je suis le thread %p, lancé avec l'argument %s\n",
mthread_self(), name);
mthread_yield();
printf("je suis encore le thread %p, lancé avec l'argument %s\n",
mthread_self(), name);
mthread_exit(arg);
return NULL;
}
/*===========================================================================*
* check_vmnt_locks_by_me *
*===========================================================================*/
PUBLIC void check_vmnt_locks_by_me(struct fproc *rfp)
{
/* Check whether this thread still has locks held on vmnts */
struct vmnt *vmp;
for (vmp = &vmnt[0]; vmp < &vmnt[NR_MNTS]; vmp++) {
if (tll_locked_by_me(&vmp->m_lock))
panic("Thread %d still holds vmnt lock on vmp %p call_nr=%d\n",
mthread_self(), vmp, call_nr);
}
if (rfp->fp_vmnt_rdlocks != 0)
panic("Thread %d still holds read locks on a vmnt (%d) call_nr=%d\n",
mthread_self(), rfp->fp_vmnt_rdlocks, call_nr);
}
/*===========================================================================*
* worker_self *
*===========================================================================*/
PUBLIC struct worker_thread *worker_self(void)
{
struct worker_thread *worker;
worker = worker_get(mthread_self());
assert(worker != NULL);
return(worker);
}
/*===========================================================================*
* check_vnode_locks_by_me *
*===========================================================================*/
PUBLIC void check_vnode_locks_by_me(struct fproc *rfp)
{
/* Check whether this thread still has locks held on vnodes */
struct vnode *vp;
for (vp = &vnode[0]; vp < &vnode[NR_VNODES]; vp++) {
if (tll_locked_by_me(&vp->v_lock)) {
panic("Thread %d still holds vnode lock on vp %x call_nr=%d\n",
mthread_self(), vp, call_nr);
}
}
if (rfp->fp_vp_rdlocks != 0)
panic("Thread %d still holds read locks on a vnode (%d) call_nr=%d\n",
mthread_self(), rfp->fp_vp_rdlocks, call_nr);
}
/*===========================================================================*
* worker_init *
*===========================================================================*/
void worker_init(struct worker_thread *wp)
{
/* Initialize worker thread */
if (!init) {
threads_init();
if (mthread_attr_init(&tattr) != 0)
panic("failed to initialize attribute");
if (mthread_attr_setstacksize(&tattr, TH_STACKSIZE) != 0)
panic("couldn't set default thread stack size");
if (mthread_attr_setdetachstate(&tattr, MTHREAD_CREATE_DETACHED) != 0)
panic("couldn't set default thread detach state");
invalid_thread_id = mthread_self(); /* Assuming we're the main thread*/
pending = 0;
init = 1;
}
ASSERTW(wp);
wp->w_job.j_func = NULL; /* Mark not in use */
wp->w_next = NULL;
if (mutex_init(&wp->w_event_mutex, NULL) != 0)
panic("failed to initialize mutex");
if (cond_init(&wp->w_event, NULL) != 0)
panic("failed to initialize conditional variable");
if (mthread_create(&wp->w_tid, &tattr, worker_main, (void *) wp) != 0)
panic("unable to start thread");
yield();
}
/*===========================================================================*
* reply *
*===========================================================================*/
void reply(endpoint_t whom, int result)
{
/* Send a reply to a user process. If the send fails, just ignore it. */
int r;
m_out.reply_type = result;
r = sendnb(whom, &m_out);
if (r != OK) {
printf("VFS: %d couldn't send reply %d to %d: %d\n", mthread_self(),
result, whom, r);
util_stacktrace();
}
}
/*===========================================================================*
* check_filp_locks *
*===========================================================================*/
void check_filp_locks_by_me(void)
{
/* Check whether this thread still has filp locks held */
struct filp *f;
int r;
for (f = &filp[0]; f < &filp[NR_FILPS]; f++) {
r = mutex_trylock(&f->filp_lock);
if (r == -EDEADLK)
panic("Thread %d still holds filp lock on filp %p call_nr=%d\n",
mthread_self(), f, job_call_nr);
else if (r == 0) {
/* We just obtained the lock, release it */
mutex_unlock(&f->filp_lock);
}
}
}
