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| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-10-31 17:42:00 +0000 |
|---|---|---|
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-10-31 17:42:00 +0000 |
| commit | 80d3580b29d84221650fd2dc7f26706d50f21197 (patch) | |
| tree | d4e9bf18d1a1a87b0dd5f73b7f21431c4a7c4b8e | |
| parent | 5ccfae10a79e52654c9edc68da6d05f29466b4f9 (diff) | |
| download | qemu-80d3580b29d84221650fd2dc7f26706d50f21197.zip qemu-80d3580b29d84221650fd2dc7f26706d50f21197.tar.gz qemu-80d3580b29d84221650fd2dc7f26706d50f21197.tar.bz2 | |
Clarify qemu_bh_schedule_idle() usage
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5576 c046a42c-6fe2-441c-8c8c-71466251a162
| -rw-r--r-- | qemu-common.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/qemu-common.h b/qemu-common.h index 0c6f4de..f23d7b4 100644 --- a/qemu-common.h +++ b/qemu-common.h @@ -70,6 +70,12 @@ typedef void QEMUBHFunc(void *opaque); QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque); void qemu_bh_schedule(QEMUBH *bh); +/* Bottom halfs that are scheduled from a bottom half handler are instantly + * invoked. This can create an infinite loop if a bottom half handler + * schedules itself. qemu_bh_schedule_idle() avoids this infinite loop by + * ensuring that the bottom half isn't executed until the next main loop + * iteration. + */ void qemu_bh_schedule_idle(QEMUBH *bh); void qemu_bh_cancel(QEMUBH *bh); void qemu_bh_delete(QEMUBH *bh); |