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| author | Micael Karlberg <[email protected]> | 2011-03-25 21:19:05 +0100 |
|---|---|---|
| committer | Micael Karlberg <[email protected]> | 2011-03-25 21:19:05 +0100 |
| commit | 5396cae69c23d7d8b7bbd0433c3b31144254c7a9 (patch) | |
| tree | a16e52267f14417155e938ee5f34cc5082efc314 /erts/emulator/sys/win32/erl_poll.c | |
| parent | 143cc965e88ea2486c1e6b804f2ae033e870de2d (diff) | |
| parent | f0e2f0b91ac4d45a64ddac511e0eba9b6ce01e92 (diff) | |
| download | otp-5396cae69c23d7d8b7bbd0433c3b31144254c7a9.tar.gz otp-5396cae69c23d7d8b7bbd0433c3b31144254c7a9.tar.bz2 otp-5396cae69c23d7d8b7bbd0433c3b31144254c7a9.zip | |
Merge branch 'dev' into bmk/snmp/support_ipv6_transport_address
Diffstat (limited to 'erts/emulator/sys/win32/erl_poll.c')
| -rw-r--r-- | erts/emulator/sys/win32/erl_poll.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c index 1f2877b682..7662f190ef 100644 --- a/erts/emulator/sys/win32/erl_poll.c +++ b/erts/emulator/sys/win32/erl_poll.c @@ -452,12 +452,15 @@ poll_wait_timeout(ErtsPollSet ps, SysTimeval *tvp) static ERTS_INLINE void wake_poller(ErtsPollSet ps, int io_ready) { - erts_aint32_t wakeup_state = erts_atomic32_read(&ps->wakeup_state); + erts_aint32_t wakeup_state; if (io_ready) { /* We may set the event multiple times. This is, however, harmless. */ - erts_atomic32_set(&ps->wakeup_state, ERTS_POLL_WOKEN_IO_READY); + wakeup_state = erts_atomic32_read(&ps->wakeup_state); + erts_atomic32_set_relb(&ps->wakeup_state, ERTS_POLL_WOKEN_IO_READY); } else { + ERTS_THR_MEMORY_BARRIER; + wakeup_state = erts_atomic32_read(&ps->wakeup_state); while (wakeup_state != ERTS_POLL_WOKEN_IO_READY && wakeup_state != ERTS_POLL_WOKEN_INTR) { erts_aint32_t act = erts_atomic32_cmpxchg(&ps->wakeup_state, @@ -518,6 +521,7 @@ reset_interrupt(ErtsPollSet ps) break; wakeup_state = act; } + ERTS_THR_MEMORY_BARRIER; } static ERTS_INLINE void |