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Bug#56822: Add a thread state for sessions waiting on the query cache lock

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Move Query_cache_wait_state declaration out of a debug block.
This commit is contained in:
Davi Arnaut 2010-10-07 21:05:23 -03:00
parent fcc741f33f
commit 28be8f919f
1 changed files with 11 additions and 10 deletions
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21
sql/sql_cache.cc
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@ -372,6 +372,17 @@ TODO list:
__LINE__,(ulong)(B)));B->query()->unlock_reading();}
#define DUMP(C) DBUG_EXECUTE("qcache", {\
(C)->cache_dump(); (C)->queries_dump();(C)->tables_dump();})
#else
#define RW_WLOCK(M) mysql_rwlock_wrlock(M)
#define RW_RLOCK(M) mysql_rwlock_rdlock(M)
#define RW_UNLOCK(M) mysql_rwlock_unlock(M)
#define BLOCK_LOCK_WR(B) B->query()->lock_writing()
#define BLOCK_LOCK_RD(B) B->query()->lock_reading()
#define BLOCK_UNLOCK_WR(B) B->query()->unlock_writing()
#define BLOCK_UNLOCK_RD(B) B->query()->unlock_reading()
#define DUMP(C)
#endif
/**
Thread state to be used when the query cache lock needs to be acquired.
@ -400,16 +411,6 @@ struct Query_cache_wait_state
}
};
#else
#define RW_WLOCK(M) mysql_rwlock_wrlock(M)
#define RW_RLOCK(M) mysql_rwlock_rdlock(M)
#define RW_UNLOCK(M) mysql_rwlock_unlock(M)
#define BLOCK_LOCK_WR(B) B->query()->lock_writing()
#define BLOCK_LOCK_RD(B) B->query()->lock_reading()
#define BLOCK_UNLOCK_WR(B) B->query()->unlock_writing()
#define BLOCK_UNLOCK_RD(B) B->query()->unlock_reading()
#define DUMP(C)
#endif
/**
Serialize access to the query cache.