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Merge mysql.com:/home/ram/work/b33304/b33304.5.0

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into  mysql.com:/home/ram/work/b33304/b33304.5.1


sql/item_func.cc:
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This commit is contained in:
unknown 2008-02-16 15:02:49 +04:00
commit f5be846390
1 changed files with 12 additions and 0 deletions
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12
sql/item_func.cc
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@ -3705,6 +3705,18 @@ longlong Item_func_sleep::val_int()
DBUG_ASSERT(fixed == 1);
double time= args[0]->val_real();
/*
On 64-bit OSX pthread_cond_timedwait() waits forever
if passed abstime time has already been exceeded by
the system time.
When given a very short timeout (< 10 mcs) just return
immediately.
We assume that the lines between this test and the call
to pthread_cond_timedwait() will be executed in less than 0.00001 sec.
*/
if (time < 0.00001)
return 0;
set_timespec_nsec(abstime, (ulonglong)(time * ULL(1000000000)));
pthread_cond_init(&cond, NULL);