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| 69 | wq->missed_wakeups = 0; |
69 | wq->missed_wakeups = 0; |
| 70 | } |
70 | } |
| 71 | 71 | ||
| 72 | /** Handle timeout during waitq_sleep_timeout() call |
72 | /** Handle timeout during waitq_sleep_timeout() call |
| 73 | * |
73 | * |
| 74 | * This routine is called when waitq_sleep_timeout() timeouts. |
74 | * This routine is called when waitq_sleep_timeout() times out. |
| 75 | * Interrupts are disabled. |
75 | * Interrupts are disabled. |
| 76 | * |
76 | * |
| 77 | * It is supposed to try to remove 'its' thread from the wait queue; |
77 | * It is supposed to try to remove 'its' thread from the wait queue; |
| 78 | * it can eventually fail to achieve this goal when these two events |
78 | * it can eventually fail to achieve this goal when these two events |
| 79 | * overlap. In that case it behaves just as though there was no |
79 | * overlap. In that case it behaves just as though there was no |
| Line 290... | Line 290... | ||
| 290 | } |
290 | } |
| 291 | 291 | ||
| 292 | /** Internal implementation of waitq_sleep_timeout(). |
292 | /** Internal implementation of waitq_sleep_timeout(). |
| 293 | * |
293 | * |
| 294 | * This function implements logic of sleeping in a wait queue. |
294 | * This function implements logic of sleeping in a wait queue. |
| 295 | * This call must be preceeded by a call to waitq_sleep_prepare() |
295 | * This call must be preceded by a call to waitq_sleep_prepare() |
| 296 | * and followed by a call to waitq_slee_finish(). |
296 | * and followed by a call to waitq_sleep_finish(). |
| 297 | * |
297 | * |
| 298 | * @param wq See waitq_sleep_timeout(). |
298 | * @param wq See waitq_sleep_timeout(). |
| 299 | * @param usec See waitq_sleep_timeout(). |
299 | * @param usec See waitq_sleep_timeout(). |
| 300 | * @param flags See waitq_sleep_timeout(). |
300 | * @param flags See waitq_sleep_timeout(). |
| 301 | * |
301 | * |
| Line 404... | Line 404... | ||
| 404 | * |
404 | * |
| 405 | * This is the internal SMP- and IRQ-unsafe version of waitq_wakeup(). It |
405 | * This is the internal SMP- and IRQ-unsafe version of waitq_wakeup(). It |
| 406 | * assumes wq->lock is already locked and interrupts are already disabled. |
406 | * assumes wq->lock is already locked and interrupts are already disabled. |
| 407 | * |
407 | * |
| 408 | * @param wq Pointer to wait queue. |
408 | * @param wq Pointer to wait queue. |
| 409 | * @param mode If mode is WAKEUP_FIRST, then the longest waiting thread, |
409 | * @param mode If mode is WAKEUP_FIRST, then the longest waitingi |
| 410 | * if any, is woken up. If mode is WAKEUP_ALL, then all |
410 | * thread, if any, is woken up. If mode is WAKEUP_ALL, then |
| 411 | * waiting threads, if any, are woken up. If there are no |
411 | * all waiting threads, if any, are woken up. If there are |
| 412 | * waiting threads to be woken up, the missed wakeup is |
412 | * no waiting threads to be woken up, the missed wakeup is |
| 413 | * recorded in the wait queue. |
413 | * recorded in the wait queue. |
| 414 | */ |
414 | */ |
| 415 | void _waitq_wakeup_unsafe(waitq_t *wq, wakeup_mode_t mode) |
415 | void _waitq_wakeup_unsafe(waitq_t *wq, wakeup_mode_t mode) |
| 416 | { |
416 | { |
| 417 | thread_t *t; |
417 | thread_t *t; |