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author | Alex Bligh <alex@alex.org.uk> | 2013-08-21 16:02:43 +0100 |
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committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-08-22 19:10:26 +0200 |
commit | 4e0c6529fcb5ccbed5eb2c4f094264eb447d49ea (patch) | |
tree | 0f89fb6942e9397892767290734b00ec00cfe9e8 /qemu-timer.c | |
parent | 043a7e1f8f66f3089ef0158aea00203e4591ba8d (diff) | |
download | qemu-4e0c6529fcb5ccbed5eb2c4f094264eb447d49ea.zip qemu-4e0c6529fcb5ccbed5eb2c4f094264eb447d49ea.tar.gz qemu-4e0c6529fcb5ccbed5eb2c4f094264eb447d49ea.tar.bz2 |
aio / timers: add ppoll support with qemu_poll_ns
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>
Diffstat (limited to 'qemu-timer.c')
-rw-r--r-- | qemu-timer.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/qemu-timer.c b/qemu-timer.c index be29adf..120d58f 100644 --- a/qemu-timer.c +++ b/qemu-timer.c @@ -37,6 +37,10 @@ #include <mmsystem.h> #endif +#ifdef CONFIG_PPOLL +#include <poll.h> +#endif + /***********************************************************/ /* timers */ @@ -323,6 +327,26 @@ int qemu_timeout_ns_to_ms(int64_t ns) } +/* qemu implementation of g_poll which uses a nanosecond timeout but is + * otherwise identical to g_poll + */ +int qemu_poll_ns(GPollFD *fds, guint nfds, int64_t timeout) +{ +#ifdef CONFIG_PPOLL + if (timeout < 0) { + return ppoll((struct pollfd *)fds, nfds, NULL, NULL); + } else { + struct timespec ts; + ts.tv_sec = timeout / 1000000000LL; + ts.tv_nsec = timeout % 1000000000LL; + return ppoll((struct pollfd *)fds, nfds, &ts, NULL); + } +#else + return g_poll(fds, nfds, qemu_timeout_ns_to_ms(timeout)); +#endif +} + + QEMUTimer *qemu_new_timer(QEMUClock *clock, int scale, QEMUTimerCB *cb, void *opaque) { |