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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /trunk/uspace/lib/libc/generic/fibril.c @ 4509

  → /trunk/uspace/lib/libc/generic/fibril.c @ 4510

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 4509 → Rev 4510

/trunk/uspace/lib/libc/generic/fibril.c
49,7 → 49,8
#define FIBRIL_INITIAL_STACK_PAGES_NO 1
#endif
/** This futex serializes access to ready_list, serialized_list and manage_list.
/**
* This futex serializes access to ready_list, serialized_list and manager_list.
*/
static atomic_t fibril_futex = FUTEX_INITIALIZER;
59,12 → 60,12
static void fibril_main(void);
/** Number of fibrils that are in async_serialized mode */
static int serialized_fibrils; /* Protected by async_futex */
/** Thread-local count of serialization. If >0, we must not preempt */
/** Number of threads that are executing a manager fibril. */
static int threads_in_manager;
/** Number of threads that are executing a manager fibril and are serialized. */
static int serialized_threads; /* Protected by async_futex */
/** Thread-local count of serialization. If > 0, we must not preempt */
static __thread int serialization_count;
/** Counter for fibrils residing in async_manager */
static int fibrils_in_manager;
/** Setup fibril information into TCB structure */
fibril_t *fibril_setup(void)
143,11 → 144,11
if (list_empty(&ready_list) && list_empty(&serialized_list))
goto ret_0;
/*
* Do not preempt if there is not sufficient count of fibril
* managers.
* Do not preempt if there is not enough threads to run the
* ready fibrils, which are not serialized.
*/
if (list_empty(&serialized_list) &&
fibrils_in_manager <= serialized_fibrils) {
threads_in_manager <= serialized_threads) {
goto ret_0;
}
}
194,7 → 195,7
list_append(&srcf->link, &ready_list);
else if (stype == FIBRIL_FROM_MANAGER) {
list_append(&srcf->link, &manager_list);
fibrils_in_manager--;
threads_in_manager--;
} else {
/*
* If stype == FIBRIL_TO_MANAGER, don't put ourselves to
208,10 → 209,10
if (stype == FIBRIL_TO_MANAGER || stype == FIBRIL_FROM_DEAD) {
dstf = list_get_instance(manager_list.next, fibril_t, link);
if (serialization_count && stype == FIBRIL_TO_MANAGER) {
serialized_fibrils++;
serialized_threads++;
srcf->flags |= FIBRIL_SERIALIZED;
}
fibrils_in_manager++;
threads_in_manager++;
if (stype == FIBRIL_FROM_DEAD)
dstf->clean_after_me = srcf;
219,7 → 220,7
if (!list_empty(&serialized_list)) {
dstf = list_get_instance(serialized_list.next, fibril_t,
link);
serialized_fibrils--;
serialized_threads--;
} else {
dstf = list_get_instance(ready_list.next, fibril_t,
link);
269,7 → 270,7
/** Add a fibril to the ready list.
*
* @param fid Pinter to the fibril structure of the fibril to be
* @param fid Pointer to the fibril structure of the fibril to be
* added.
*/
void fibril_add_ready(fid_t fid)
287,7 → 288,8
/** Add a fibril to the manager list.
*
* @param fid Pinter to the fibril structure of the fibril to be added.
* @param fid Pointer to the fibril structure of the fibril to be
* added.
*/
void fibril_add_manager(fid_t fid)
{
314,7 → 316,7
/** Return fibril id of the currently running fibril.
*
* @return Fibril ID of the currently running pseudo thread.
* @return Fibril ID of the currently running fibril.
*/
fid_t fibril_get_id(void)
{