This means that a variable you declare PUBLIC is global only to the thread each thread has an instance of the variable. The multithreaded Visual FoxPro run-time library uses thread local storage to give each class instance its own set of data. In addition to addressing blocking issues, implementing Apartment-model threading in the multithreaded Visual FoxPro run-time library also eliminates conflicts in accessing global data from multiple threads by giving each apartment its own copy of global data. If you build with the multithreaded Visual FoxPro run-time library, you won't have the same bottleneck.
For example, with the Visual FoxPro run-time library, an object that executes a 1 second database query routine may have to wait 15 minutes for an object printing a long, complex report. Because the multithreaded Visual FoxPro run-time library is a lightweight run-time library designed only for in-process servers, many commands and functions related to visual and user input features have been disabled.īecause no blocking occurs in the multithreaded Visual FoxPro run-time library, an object executing an unusually long procedure, such as printing out a report, won't prevent other objects from executing quick rapid routines.
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