Have a look at the code below. These are thre a) while(TRUE){ b) get_next_request(&buf); handoff_work (&buff); while(TRUE){ wait_for_work (&buf); look_for_page_in_cache(&buf, &page) if (page_in_cache(&page) { read_page_from_disk(&buf, &page);
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- Multi-threading A) Write a Thread class (called worker) that takes two numbers (A and B, A < B) and calculates the products of all numbers between A and B. the result is stored in a local variable than can be accessed through a get method. B) Write a main program to calculate the factorial of a given number n (). The main thread reads n from the user, then creates two instances of Worker. Each one is requested to calculate the half of numbers between 1 and n. Once they finish, the main thread will gather their results and print the final result (result1 x result2). Example when n=10Design a food ordering system where your python program will run two threads, Place Order: This thread will be placing an order and inserting that into a queue. This thread places new order every 0.5 second. (hint: use time.sleep(0.5) function) Serve Order: This thread will serve the order. All you need to do is pop the order out of the queue and print it. This thread serves an order every 2 seconds. Also start this thread 1 second after place order thread is started. Pass following list as an argument to place order thread, orders = ['pizza','samosa','pasta','biryani','burger'] This problem is a producer,consumer problem where place_order thread is producing orders whereas serve_order thread is consuming the food orders. Use Queue class.THREAD -"C LANGUAGE" ONLY Write a program that uses 5 threads. Initialize a shared variable with a value of 0. Each thread must add its Thread ID (tid) to the shared variable. Once a thread has done the addition, print the ID of the thread. It is important to make use of mutexes so that only one thread is incrementing the shared variable at a time. Output the value of the shared variable once all threads have finished incrementing it.
- No screenshot needed, just explain the program and answer the red question to copy program /* Multi-threaded example */ #include <stdio.h> #include <stdlib.h> #include <pthread.h> #define NUM_THREADS 10 /*This data is shared by the thread(s) */ pthread_t tid[NUM_THREADS]; /*This is the thread function */ void *runner(void *param); int main(int argc, char *argv[]) { int i; pthread_attr_t attr; printf("I am the parent thread\n"); /* get the default attributes */ pthread_attr_init(&attr); /* set the scheduling algorithm to PROCESS(PCS) or SYSTEM(SCS) */ pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); /* set the scheduling policy - FIFO, RR, or OTHER */ pthread_attr_setschedpolicy(&attr, SCHED_OTHER); /* create the threads */ for (i = 0; i < NUM_THREADS; i++) pthread_create(&tid[i], &attr, runner, (void *) i); /* now join on each thread */ for (i = 0; i < NUM_THREADS; i++) pthread_join(tid[i], NULL); printf("I am the parent thread…THREADS in C PROGRAM HELP! Using the thread3.c program provided below, itt will require some code modification. Those modifications include: - instead of 10,000 threads, create 40,000 threads in total - instead of creating just one kind of thread, create 4 kinds of threads (each with 10,000 instances) o group 1: adds 1 to counter o group 2: adds 5 to counter o group 3: subtracts 2 from counter o group 4: subtracts 10 from counter Run the program 5 times and take a screen shot showing the output of the run. Add comments throughout the code please! thread3.c given code: // Compile with://// clang -lpthread thread3.c -o thread3// or// gcc -lpthread thread3.c -o thread3//#include <stdio.h>#include <stdlib.h>#include <pthread.h> #define NTHREADS 10000 // shared variableint counter = 0; // thread to be executed - unspecified variable argumentsvoid *thread (void *vargp) {counter = counter +1;return NULL;} int main() {// array to keep Pthread IDs of created threadspthread_t…Multi-threading A) Write a Thread class (called worker) that takes two numbers (A and B, A < B) and calculates the products of all numbers between A and B. the result is stored in a local variable than can be accessed through a get method. ). The main thread reads n from the user, then creates two instances of Worker. Each one is requested to calculate the half of numbers between 1 and n. Once they finish, the main thread will gather their results and print the final result (result1 x result2). Example when n=10
- Write program for the following Create a child thread class for sorting an array of 10000 size string values Create a child class for calculating factorial of 50 Create a child thread class for calculating base b to the power p Create a single object of each thread in the main thread, and stop the execution of main thread until the termination of all child threads using join methodThe following question is related to Threading Task-1: Write a c program that creates 5 threads and prints which thread is running and after the thread is closed, a new thread starts its execution. Each thread should run sequentially one by one. OUTPUT: thread-1 running thread-1 closed thread-2 running thread-2 closedIn C++ This exercise involves implementing the solution to the bounded buffer/readers and writers problem using threads. You will create a program that accepts four command line arguments: run_time (the length of time the program should run) buffer_size (number of slots in the bounded buffer) num_producers (number of producer threads) num_consumers (number of consumer threads) The program will create a thread for each producer and consumer. As each thread produces or consumes a data item, it will print its status. Example Output Here are some sample runs: Not enough arguments If not enough arguments are provided, the program should print an error message and exit. $ ./bounded_buffer Wrong number of arguments. Usage: bounded_buffer <run_time> <buffer_size> <num_producers> <num_consumers> $ Invalid argument If an argument is less than or equal to 0, the program should print a message and exit $ ./bounded_buffer 10 5 1 0 ./bounded_buffer 10 5 1 0 num_consumers…
- Course: Operating Systems write a multi-threadeddirectory copy program. The program will create destination directory and open thesource directory. Then for each file in the source directory it will create a thread. Thethread will copy file from source directory to the destination directory. At the end it willprint the number of files copied. Both the source and destination names will be passed ascommand line arguments. Sample execution is as follows:mtcopy.exe source_dir destination_dirCopied 8 files Note: The answer is availible on chegg.10 Write a C program that creates five threads (in addition to the initial thread) and makes each execute a function task(void * i) for i integer ranging from 1 to 5. in this function, make an empty loop of 10000 steps, then display of the i number and the thread id on the screen. The initial thread will also perform the display. Check on this example that: — The use of the exit() function in one of the threads of the process leads to the termination of all the threads. — The termination of the initial thread leads to the release of all the resources, therefore the termination of all the threads of the process. How to avoid this premature termination?Lab 4 Directions Write a C program called threadcircuit to run on ocelot which will provide a multithreaded solution to the circuit-satisfiability problem which will compute for what combinations of input values will the circuit output the value 1. This is the sequential solution, which is also attached. You should create 6 threads and divide the 65,536 test cases among them. For example, if p=6, each thread would be responsible for roughly 65,536/6 number of iterations (if it's not divisible, some threads can end up with one more iteration than the others). The test cases must be allocated in a cyclic fashion one by one. #include <stdio.h>#include <sys/time.h>/* Return 1 if 'i'th bit of 'n' is 1; 0 otherwise */#define EXTRACT_BIT(n,i) ((n&(1<<i))?1:0)int check_circuit (int z) { int v[16]; /* Each element is a bit of z */ int i; for (i = 0; i < 16; i++) v[i] = EXTRACT_BIT(z,i); if ((v[0] || v[1]) && (!v[1] || !v[3]) && (v[2] || v[3])…