![]() ![]() It allows programmers to plan any algorithm's structure using simple commands. Pseudocode is a simplified representation of an algorithm that uses the English language to describe coding logic. In this article, we define pseudocode, review its primary constructs, explain how to write it and provide an example. If you develop software, learning about pseudocode can help you improve your coding process. Pseudocode is a planning method that programmers can use to organize and outline their coding logic. When a writer is done writing into the object, signal operation is performed on wrt.Writing software involves using computer algorithms and data storage structures. After that no other writer can access the object. If a writer wants to access the object, wait operation is performed on wrt. The code that defines the writer process is given below: wait(wrt) When re becomes 0, signal operation is used on wrt. After the read operation is done, rc is decremented. This means that a writer cannot access the object anymore. As soon as rc becomes 1, wait operation is used on wrt. The variable rc denotes the number of readers accessing the object. The mutex semaphore ensures mutual exclusion and wrt handles the writing mechanism and is common to the reader and writer process code. Also, rc is a variable that is initialized to 0. In the above code, mutex and wrt are semaphores that are initialized to 1. The code that defines the reader process is given below − wait (mutex) The codes for the reader and writer process in the reader-writer problem are given as follows − Reader Process This can be implemented using semaphores. However, multiple readers can access the object at the same time. when a writer is accessing the object, no reader or writer may access it. To solve this situation, a writer should get exclusive access to an object i.e. However if two writers or a reader and writer access the object at the same time, there may be problems. For example - If two readers access the object at the same time there is no problem. The readers-writers problem is used to manage synchronization so that there are no problems with the object data. they only want to read the data from the object and some of the processes are writers i.e. The readers-writers problem relates to an object such as a file that is shared between multiple processes. ![]()
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