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| author | Bin Meng | 2022-10-19 12:20:14 +0200 |
|---|---|---|
| committer | Paolo Bonzini | 2022-11-06 09:48:26 +0100 |
| commit | d393b0a176068c41cc08f41c245721ed9ca91d30 (patch) | |
| tree | 1a95b3f9aa3b29796bec82251b57ce45da5592b5 /include | |
| parent | util/main-loop: Fix maximum number of wait objects for win32 (diff) | |
| download | qemu-d393b0a176068c41cc08f41c245721ed9ca91d30.tar.gz qemu-d393b0a176068c41cc08f41c245721ed9ca91d30.tar.xz qemu-d393b0a176068c41cc08f41c245721ed9ca91d30.zip | |
util/main-loop: Avoid adding the same HANDLE twice
Fix the logic in qemu_add_wait_object() to avoid adding the same
HANDLE twice, as the behavior is undefined when passing an array
that contains same HANDLEs to WaitForMultipleObjects() API.
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Message-Id: <20221019102015.2441622-2-bmeng.cn@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qemu/main-loop.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/qemu/main-loop.h b/include/qemu/main-loop.h index aac707d073..3c9a9a982d 100644 --- a/include/qemu/main-loop.h +++ b/include/qemu/main-loop.h @@ -157,6 +157,8 @@ typedef void WaitObjectFunc(void *opaque); * in the main loop's calls to WaitForMultipleObjects. When the handle * is in a signaled state, QEMU will call @func. * + * If the same HANDLE is added twice, this function returns -1. + * * @handle: The Windows handle to be observed. * @func: A function to be called when @handle is in a signaled state. * @opaque: A pointer-size value that is passed to @func. |