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A pre-requisite patch for the fix for Bug#52044.

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Implement a few simple asserts in my_rwlock_t locks.

include/my_pthread.h:
  Declare two simple assert functions.
include/mysql/psi/mysql_thread.h:
  Add wrappers for new assert functions.
mysys/thr_rwlock.c:
  Add asserts.
sql/sql_base.cc:
  Silence a compiler warning for the case when
  SAFE_MUTEX is not ON.
This commit is contained in:
Konstantin Osipov
2010-08-11 01:12:01 +04:00
parent 64cc044e33
commit 265a6edd23
4 changed files with 48 additions and 0 deletions
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8
include/mysql/psi/mysql_thread.h
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@ -215,6 +215,14 @@ typedef struct st_mysql_cond mysql_cond_t;
#define mysql_mutex_assert_not_owner(M) \
safe_mutex_assert_not_owner(&(M)->m_mutex)
/** Wrappers for instrumented prlock objects. */
#define mysql_prlock_assert_write_owner(M) \
rw_pr_lock_assert_write_owner(&(M)->m_prlock)
#define mysql_prlock_assert_not_write_owner(M) \
rw_pr_lock_assert_not_write_owner(&(M)->m_prlock)
/**
@def mysql_mutex_init(K, M, A)
Instrumented mutex_init.