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Used to store information input by user and the customer queue So for all running threads, the ids are unique. But if there are multiple threads, and one thread is completed, then that id can be reused.
#Pthread c return code
This function can uniquely identify the existing threads. APPLELICENSEHEADERSTART This file contains Original Code and/or Modifications of Original. The pthreadself () function is used to get the ID of the current thread. The pthreadmutextrylock () function shall be equivalent to pthreadmutexlock (), except that if the mutex object referenced by mutex is currently locked (by any thread, including the current thread), the call shall return immediately. Here we will see what will be the effect of pthreadself () in C. I am attempting to share that struct between all threads but get "dereferencing pointer" errors and "request for member x in something not a structure" error. Attempting to unlock the mutex if it is not locked results in undefined behavior. Consult pthreads man pages or the Nichols text (Appendix C). There are many more useful functions in the pthread library. I am using a struct to hold the period of time, arrival rate, service rate, number of tellers, and the customer waiting queue. pthreadequal() compares for equality between two pthread ids pthreadonce() can be used to ensure that an initializing function within a thread is only run once. I am using a thread to determine if a client came into the bank via an arrival rate and am using multiple threads to represent tellers with an s service rate. I'm trying to simulate clients going into a bank and being served by tellers over a period of time.