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Add a comment for thd->proc_info.

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This commit is contained in:
Konstantin Osipov
2009-07-22 13:44:19 +04:00
parent 381ca8f58d
commit 2d716209e6
1 changed files with 4 additions and 0 deletions
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4
sql/sql_class.h
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@ -1335,6 +1335,10 @@ public:
Set it using the thd_proc_info(THD *thread, const char *message) Set it using the thd_proc_info(THD *thread, const char *message)
macro/function. macro/function.
This member is accessed and assigned without any synchronization.
Therefore, it may point only to constant (statically
allocated) strings, which memory won't go away over time.
*/ */
const char *proc_info; const char *proc_info;