Access Violation during Intialization.
Posted by: David Pratt
Date: January 07, 2013 07:29AM

I have been experimenting with the C API using C++Builder XE2, but when I call mysql_init, it generates an access error. System configuration is:

OS: Windows 7 64bit
MySQL server: 5.5.27 64bit
libmysql.dll ver: 5.5.29 32 bit

I am linking against a generated import lib using emb's implib, as Embarcadero's compilers use OMF library format as opposed to the COFF format used by VS. Everything links fine, but when I run teh code, it generaates an access error. I have been able to trace the error to inside mysql_server_init, but I get lost in the assembly code from there. From what I can see, I believe it may be the call to init_embedded_server that is causing a problem. The access violation actually occurs in a section of C++Builder's runtime library that is unloading modules, if this helps at all. The Basic code follows:

{
  MySQL= NULL;
  mysql_init(MySQL);
}

The libmysql.dll is already previously loaded during program startup.

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