There is, in any system with potential parallel execution threads, or pseudo-parallel execution threads, a phenomenon known as the "race condition". This is a situation in which the correctness of the cooperation between two (or more, generally) processes is determined by the timing relationship of the execution of certain paths in the programs. If program A reaches a certain point of execution before program B has set things up properly, program A could fail. Many of the "find the other executing program instance" solutions fail because of race conditions. We'll examine these after we look at a way that actually seems to work.
Avoiding Multiple Instances of an Application
13 Oct 2001 | by Joseph M. Newcomer
| Filed in
The basic problem
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