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pithikos 2015-01-15 15:58:55 +00:00
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example.c
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/*
* This is just an example on how to use the thpool library
* WHAT THIS EXAMPLE DOES
*
* We create a pool of 4 threads and then add 20 tasks to the pool(10 task1
* functions and 10 task2 functions).
* We create a pool of 4 threads and then add 40 tasks to the pool(20 task1
* functions and 20 task2 functions).
*
* Task1 doesn't take any arguments. Task2 takes an integer. Task2 is used to show
* how to add work to the thread pool with an argument.
* task1 and task2 simply print which thread is running them.
*
* As soon as we add the tasks to the pool, the threads will run them. One thread
* may run x tasks in a row so if you see as output the same thread running several
* tasks, it's not an error.
*
* All jobs will not be completed and in fact maybe even none will. You can add a sleep()
* function if you want to complete all tasks in this test file to be able and see clearer
* what is going on.
*
* */
#include <stdio.h>
#include "thpool.h"
/* Some arbitrary task 1 */
void task1(){
printf("# Thread working: %u\n", (int)pthread_self());
printf(" Task 1 running..\n");
printf("# Thread %u working on task1\n", (int)pthread_self());
}
/* Some arbitrary task 2 */
void task2(int a){
printf("# Thread working: %u\n", (int)pthread_self());
printf(" Task 2 running..\n");
printf("%d\n", a);
void task2(){
printf("# Thread %u working on task2\n", (int)pthread_self());
}
int main(){
int i;
thpool_t* threadpool; /* make a new thread pool structure */
threadpool=thpool_init(4); /* initialise it to 4 number of threads */
puts("Making threadpool with 4 threads");
thpool threadpool = thpool_init(4);
puts("Adding 20 tasks to threadpool");
int a=54;
for (i=0; i<10; i++){
puts("Adding 40 tasks to threadpool");
int i;
for (i=0; i<20; i++){
thpool_add_work(threadpool, (void*)task1, NULL);
thpool_add_work(threadpool, (void*)task2, (void*)a);
thpool_add_work(threadpool, (void*)task2, NULL);
};
puts("Will kill threadpool");
puts("Killing threadpool");
thpool_destroy(threadpool);
return 0;