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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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19
configure vendored
View file

@ -2818,6 +2818,22 @@ if compile_prog "" "" ; then
dup3=yes
fi
# check for ppoll support
ppoll=no
cat > $TMPC << EOF
#include <poll.h>
int main(void)
{
struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
ppoll(&pfd, 1, 0, 0);
return 0;
}
EOF
if compile_prog "" "" ; then
ppoll=yes
fi
# check for epoll support
epoll=no
cat > $TMPC << EOF
@ -3814,6 +3830,9 @@ fi
if test "$dup3" = "yes" ; then
echo "CONFIG_DUP3=y" >> $config_host_mak
fi
if test "$ppoll" = "yes" ; then
echo "CONFIG_PPOLL=y" >> $config_host_mak
fi
if test "$epoll" = "yes" ; then
echo "CONFIG_EPOLL=y" >> $config_host_mak
fi