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[Minor] Backport some changes from libev
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vstakhov committed May 13, 2021
1 parent 425e6f7 commit 0a9d4aa
Showing 1 changed file with 7 additions and 6 deletions.
13 changes: 7 additions & 6 deletions contrib/libev/ev.c
Expand Up @@ -497,10 +497,10 @@

#if EV_USE_IOURING
# include <sys/syscall.h>
# if !SYS_io_uring_setup && __linux && !__alpha
# if !SYS_io_uring_register && __linux && !__alpha
# define SYS_io_uring_setup 425
# define SYS_io_uring_enter 426
# define SYS_io_uring_wregister 427
# define SYS_io_uring_register 427
# endif
# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
# define EV_NEED_SYSCALL 1
Expand Down Expand Up @@ -4130,18 +4130,19 @@ ev_run (EV_P_ int flags)
if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
{
waittime = EV_TS_CONST (MAX_BLOCKTIME);

if (ecb_expect_true (have_monotonic)) {
#if EV_USE_TIMERFD
/* sleep a lot longer when we can reliably detect timejumps */
if (ecb_expect_true (timerfd >= 0))
waittime = EV_TS_CONST (MAX_BLOCKTIME2);
if (ecb_expect_true (timerfd != -1))
waittime = EV_TS_CONST (MAX_BLOCKTIME2);
#endif
#if !EV_PERIODIC_ENABLE
/* without periodics but with monotonic clock there is no need */
/* for any time jump detection, so sleep longer */
if (ecb_expect_true (have_monotonic))

waittime = EV_TS_CONST (MAX_BLOCKTIME2);
#endif
}

if (timercnt)
{
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