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Diffstat (limited to 'src/os_posix/os_sleep.c')
| -rw-r--r-- | src/os_posix/os_sleep.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/os_posix/os_sleep.c b/src/os_posix/os_sleep.c index 2c60987ced7..67c0aaa375c 100644 --- a/src/os_posix/os_sleep.c +++ b/src/os_posix/os_sleep.c @@ -1,5 +1,5 @@ /*- - * Copyright (c) 2014-2016 MongoDB, Inc. + * Copyright (c) 2014-2017 MongoDB, Inc. * Copyright (c) 2008-2014 WiredTiger, Inc. * All rights reserved. * @@ -18,6 +18,14 @@ __wt_sleep(uint64_t seconds, uint64_t micro_seconds) { struct timeval t; + /* + * Sleeping isn't documented as a memory barrier, and it's a reasonable + * expectation to have. There's no reason not to explicitly include a + * barrier since we're giving up the CPU, and ensures callers are never + * surprised. + */ + WT_FULL_BARRIER(); + t.tv_sec = (time_t)(seconds + micro_seconds / WT_MILLION); t.tv_usec = (suseconds_t)(micro_seconds % WT_MILLION); |