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• c++ - PHP Semaphore compatible with CPP application in Ubuntu - Oipapio- oipapio.com
  • https://www.oipapio.com/question-6570436

• c++ - PHP Semaphore compatible with CPP application in Ubuntu - Stack Overflow
  • https://stackoverflow.com/questions/22642968/php-semaphore-compatible-with-cpp-application-in-ubuntu/22667109#22667109