SUMMARY
Using multiple threads of execution within an application can make it more responsive and allow it to take full advantage of a multicore system but also makes programming more complicated. Synchronization is required to avoid data corruption whenever multiple threads access shared resources.
Synchronization is often achieved using monitors or semaphores. These facilities enable applications to control access to shared resources and to signal other threads when the resources are available for processing. Misuse of these constructs can halt threads through deadlock. Writing quality multithreaded code that avoids both data corruption and deadlock is challenging, requiring care and discipline.
