.NET
Microsoft Technologies based on the .NET software framework.
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MFC project used to access mysql database crashed
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Reputation point
I use multiple threads to access the MySQL database through ado. The work of each thread is: just connect to the database and then disconnect, and then end. But every time after running for a long time, the program crashes, and the crashing interface is as follow.
figure 1
the function showing in the figure 2 is used in the thread:
figure 2
.NET
C++
C++
A high-level, general-purpose programming language, created as an extension of the C programming language, that has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation.
3,527 questions
{count} votes
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Viorel 112.1K Reputation points2021-06-29T04:23:05.647+00:00 Maybe you should send a sample Visual Studio project to https://bugs.mysql.com/bug.php?id=103968 or somehow emphasize the reported issue.
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Jeanine Zhang-MSFT 9,181 Reputation points Microsoft Vendor2021-06-29T06:45:24.307+00:00 Could you please provide a sample by code instead of picture to help us reproduce the issue?
Typically, the COM library is initialized on a thread only once. CoInitialize/CoUninitialize are meant to be run once on startup and once on shutdown of the application.
I suggest you could try to check whether the first thread in the application that calls CoInitialize with 0 (or CoInitializeEx with COINIT_APARTMENTTHREADED) must be the last thread to call CoUninitialize. Otherwise, subsequent calls to CoInitialize on the STA will fail and the application will not work.
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柚 加 1 Reputation point
2021-07-01T05:15:19.437+00:00 Hi, JeanineZhang-MSFT
II have provided a sample project on https://bugs.mysql.com/bug.php?id=103968enter code here，in the case of the zip file cannot be uploaded here. -
柚 加 1 Reputation point
2021-07-01T05:23:27.867+00:00 Hi ,Viorel-1
I have sent a a sample Visual Studio project to https://bugs.mysql.com/bug.php?id=103968 which can reproduce the issue.If you cannot download the project,please tell me. -
柚 加 1 Reputation point
2021-07-01T05:25:16.04+00:00 Hi ,Viorel-1
I have sent a a sample Visual Studio project to https://bugs.mysql.com/bug.php?id=103968 which can reproduce the issue.If you cannot download the project,please tell me. -
柚 加 1 Reputation point
2021-07-01T05:27:17.66+00:00 Hi ,JeanineZhang-MSFT
I have sent a a sample Visual Studio project to https://bugs.mysql.com/bug.php?id=103968 which can reproduce the issue.If you cannot download the project,please tell me. -
Jeanine Zhang-MSFT 9,181 Reputation points Microsoft Vendor
2021-07-02T05:52:19.307+00:00 I suggest you could try to share the code directly to Onedrive.
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柚 加 1 Reputation point
2021-07-02T07:12:18.573+00:00 hello,JeanineZhang-MSFT
This is my onedrive link
https://1drv.ms/u/s!AlRuioLOk-Tng2QeKchxa_uVHrbr?e=6YXphv -
柚 加 1 Reputation point
2021-07-02T07:20:33.273+00:00 Hello，Viorel-1
If you cannot download this sample project，please try this onedrive link
https://1drv.ms/u/s!AlRuioLOk-Tng2QeKchxa_uVHrbr?e=6YXphv -
Jeanine Zhang-MSFT 9,181 Reputation points Microsoft Vendor
2021-07-29T05:35:09.607+00:00 -
柚 加 1 Reputation point
2021-08-03T01:59:20.723+00:00 Thanks for your suggestion
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