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nexedi
MariaDB
Commits
ed166f53
Commit
ed166f53
authored
Dec 20, 2018
by
Eugene Kosov
Committed by
Sergey Vojtovich
Dec 21, 2018
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MDEV-18043 data race in os_event
os_event::is_set(): protect os_event::m_set with os_event::mutex
parent
b7a9563b
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2 deletions
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-2
storage/innobase/os/os0event.cc
storage/innobase/os/os0event.cc
+5
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storage/innobase/os/os0event.cc
View file @
ed166f53
...
@@ -126,7 +126,10 @@ struct os_event {
...
@@ -126,7 +126,10 @@ struct os_event {
/** @return true if the event is in the signalled state. */
/** @return true if the event is in the signalled state. */
bool
is_set
()
const
UNIV_NOTHROW
bool
is_set
()
const
UNIV_NOTHROW
{
{
return
(
m_set
);
mutex
.
enter
();
bool
is_set
=
m_set
;
mutex
.
exit
();
return
is_set
;
}
}
private:
private:
...
@@ -224,7 +227,7 @@ struct os_event {
...
@@ -224,7 +227,7 @@ struct os_event {
int64_t
signal_count
;
/*!< this is incremented
int64_t
signal_count
;
/*!< this is incremented
each time the event becomes
each time the event becomes
signaled */
signaled */
EventMutex
mutex
;
/*!< this mutex protects
mutable
EventMutex
mutex
;
/*!< this mutex protects
the next fields */
the next fields */
...
...
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