mariadb_test.cpp
[CONC-27] crash in mysql_thread_end Created: 2013-05-21 Updated: 2013-06-17 Resolved: 2013-06-17 |
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| Status: | Closed |
| Project: | MariaDB Connector/C |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Major |
| Reporter: | Janani SriGuha | Assignee: | Georg Richter |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Environment: |
Windows, Visual Studio 10 |
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| Attachments: |
mariadb_test.cpp
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| Description |
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When multiple MySQL objects are created in the same thread, and mysql_thread_end is called when destroying each object, it crashes. This does not happen with the MySQL client library. Have attached sample code. |
| Comments |
| Comment by Vladislav Vaintroub [ 2013-05-21 ] |
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Just a remark - it is not the correct way to use mysq_thread_end(). It should not be called once per "object" (whatever it is), but once per OS thread, if you do not plan to to make mysql calls anymore in this thread. |
| Comment by Janani SriGuha [ 2013-05-21 ] |
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Yes we are aware of that. However in MySQL, this case does not cause a crash, but in MariaDB it does. |
| Comment by Vladislav Vaintroub [ 2013-05-21 ] |
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That it does not crash in MySQL just means you're lucky. This does not mean that one can rely on undocumented behavior in APIs |
| Comment by Janani SriGuha [ 2013-05-21 ] |
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True |
| Comment by Janani SriGuha [ 2013-05-29 ] |
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Just found out this (crashing) happens only in a Windows environment. It works fine in linux. |
| Comment by Georg Richter [ 2013-06-17 ] |
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Fixed in rev. 67 |
