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aio / timers: add ppoll support with qemu_poll_ns

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Add qemu_poll_ns which works like g_poll but takes a nanosecond
timeout.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Alex Bligh 2013-08-21 16:02:43 +01:00 • committed by Stefan Hajnoczi
parent 043a7e1f8f
commit 4e0c6529fc
3 changed files with 55 additions and 0 deletions
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12
include/qemu/timer.h
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@ -63,6 +63,18 @@ int64_t qemu_clock_deadline_ns(QEMUClock *clock);
*/
int qemu_timeout_ns_to_ms(int64_t ns);
/**
* qemu_poll_ns:
* @fds: Array of file descriptors
* @nfds: number of file descriptors
* @timeout: timeout in nanoseconds
*
* Perform a poll like g_poll but with a timeout in nanoseconds.
* See g_poll documentation for further details.
*
* Returns: number of fds ready
*/
int qemu_poll_ns(GPollFD *fds, guint nfds, int64_t timeout);
void qemu_clock_enable(QEMUClock *clock, bool enabled);
void qemu_clock_warp(QEMUClock *clock);