Reader writer c program

The two problems deal with situations in which many threads must access the same shared memory at one time, some reading and some writing, with the natural constraint that no process may access the share for reading or writing while another process is in the act of writing to it.

In particular, it is allowed for two or more readers to access the share at the same time. A readers-writer lock is a data structure that solves one or more of the readers-writers problems. Tags: c program to implement readers writers problem c program using threads readers writers c programming readers writers readers writers problem in c readers writers system program using threads.

We have declared two variables named as reading count and write count which will count the read and write to control the synchronization problem. Only the read or write permission will be given based on these variables.

So we can say that it is a way in which we should handle the reader and writer. Reader Writer problem using Reader Priority code can be found here. Please use the below link for downloading source code.

Download Source Code. Duck BeginnersSake BeginnersSake 2 2 gold badges 15 15 silver badges 27 27 bronze badges. You don't call your initialize function to initialise your mutexes. Within main , you do not call the function initialize. This is the function that initialises your two mutexes x and wsem. DaV sorry i forgot to call initialize within the main.

Add a comment. Active Oldest Votes. Antwane It seems like u r confused with reader writer problem. Actually the code which i pasted above is working. I am getting at the output "Reader's leaving" line after "Writer is trying to enter" how this is happening Why can't you just give the OP an answer to his problem?

I don't think code dumps were requested here.