Revision 691a0c9c qemu-timer.c
| b/qemu-timer.c | ||
|---|---|---|
| 150 | 150 |
int enabled; |
| 151 | 151 |
|
| 152 | 152 |
QEMUTimer *warp_timer; |
| 153 |
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|
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NotifierList reset_notifiers; |
|
| 155 |
int64_t last; |
|
| 153 | 156 |
}; |
| 154 | 157 |
|
| 155 | 158 |
struct QEMUTimer {
|
| ... | ... | |
| 376 | 379 |
static QEMUClock *qemu_new_clock(int type) |
| 377 | 380 |
{
|
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QEMUClock *clock; |
| 382 |
|
|
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clock = qemu_mallocz(sizeof(QEMUClock)); |
| 380 | 384 |
clock->type = type; |
| 381 | 385 |
clock->enabled = 1; |
| 386 |
notifier_list_init(&clock->reset_notifiers); |
|
| 387 |
/* required to detect & report backward jumps */ |
|
| 388 |
if (type == QEMU_CLOCK_HOST) {
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|
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clock->last = get_clock_realtime(); |
|
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} |
|
| 382 | 391 |
return clock; |
| 383 | 392 |
} |
| 384 | 393 |
|
| ... | ... | |
| 593 | 602 |
|
| 594 | 603 |
int64_t qemu_get_clock_ns(QEMUClock *clock) |
| 595 | 604 |
{
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int64_t now, last; |
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|
|
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switch(clock->type) {
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case QEMU_CLOCK_REALTIME: |
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return get_clock(); |
| ... | ... | |
| 604 | 615 |
return cpu_get_clock(); |
| 605 | 616 |
} |
| 606 | 617 |
case QEMU_CLOCK_HOST: |
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return get_clock_realtime(); |
|
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now = get_clock_realtime(); |
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last = clock->last; |
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clock->last = now; |
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if (now < last) {
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notifier_list_notify(&clock->reset_notifiers, &now); |
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} |
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return now; |
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| 608 | 625 |
} |
| 609 | 626 |
} |
| 610 | 627 |
|
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void qemu_register_clock_reset_notifier(QEMUClock *clock, Notifier *notifier) |
|
| 629 |
{
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notifier_list_add(&clock->reset_notifiers, notifier); |
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} |
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|
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void qemu_unregister_clock_reset_notifier(QEMUClock *clock, Notifier *notifier) |
|
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{
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notifier_list_remove(&clock->reset_notifiers, notifier); |
|
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} |
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| 637 |
|
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| 611 | 638 |
void init_clocks(void) |
| 612 | 639 |
{
|
| 613 | 640 |
rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME); |
Also available in: Unified diff