Write a C Program to lock file using semaphores.Using semaphores, We can control access to files, shared memory and other things. The basic functionality of a semaphore is that you can either set it, check it, or wait until it clears then set it (“test-n-set”). In C semaphores functions defined in the sys/sem library. Read …
This classic exercise asks you to encrypt and decrypt a password in C. The right teaching tool for it is the XOR cipher: XOR each character with a key byte, and XOR-ing a second time with the same key restores the original — one function does both directions. This page gives you a tested implementation …
C Program to Solve the Producer-Consumer Problem Using Semaphores The producer-consumer problem (also called the bounded-buffer problem) is a classic process synchronization problem. A producer process generates data items while a consumer process reads them; a semaphore enforces the ordering so the consumer never reads ahead of the producer. Note: This program uses POSIX System …
Round Robin (RR) is a preemptive CPU scheduling algorithm designed for time-sharing systems. Instead of running one process to completion like FCFS, the CPU gives every process a fixed slice of time called a time quantum. If a process doesn’t finish within that slice, it’s paused and moved to the back of the queue, and …
Write a C program to demonstrate modf function.modf() defined in the C math.h library.modf function breaks the double/float values to integral part and fractional part. Example: res = modf(3.142, &iptr) returns res=142 and iptr=3. Read more about C Programming Language . and read the C Programming Language (2nd Edition). by K and R. /************************************************************ You can …
An anagram is a word or phrase formed by rearranging all the characters of another. In C, the standard way to check if two strings are anagrams is to count character frequencies: if both strings have exactly the same character counts, they are anagrams — regardless of order. This page shows a complete anagram program …