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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2025-05-29 14:46:01 +0900 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-06-06 14:32:55 +0200 |
| commit | 5e2312f75adcba8cfee343a03343bf298c5bc937 (patch) | |
| tree | 2c14ef3def0f70a8d0157a84650738cca7802ecb | |
| parent | 0a765ca850125e0202c366cb4aab032ac9670870 (diff) | |
| download | qemu-5e2312f75adcba8cfee343a03343bf298c5bc937.zip qemu-5e2312f75adcba8cfee343a03343bf298c5bc937.tar.gz qemu-5e2312f75adcba8cfee343a03343bf298c5bc937.tar.bz2 | |
qemu-thread: Document QemuEvent
Document QemuEvent to help choose an appropriate synchronization
primitive.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Link: https://lore.kernel.org/r/20250529-event-v5-12-53b285203794@daynix.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | include/qemu/thread.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/qemu/thread.h b/include/qemu/thread.h index 573f8c9..f0302ed 100644 --- a/include/qemu/thread.h +++ b/include/qemu/thread.h @@ -10,6 +10,16 @@ typedef struct QemuSemaphore QemuSemaphore; typedef struct QemuLockCnt QemuLockCnt; typedef struct QemuThread QemuThread; +/* + * QemuEvent + * ========= + * + * QemuEvent is an implementation of Win32 manual-reset event object. + * For details, refer to: + * https://learn.microsoft.com/en-us/windows/win32/sync/using-event-objects + * + * QemuEvent is more lightweight than QemuSemaphore when HAVE_FUTEX is defined. + */ typedef struct QemuEvent { #ifndef HAVE_FUTEX pthread_mutex_t lock; |