Threaded work queue for C.
This library provides a work queue which enables to invoke provided functions in a background thread.
Each queue owns a single background thread, so it is possible to create multiple queues for different purposes.
#include "workqueue.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
struct FnArgs
{
int counter;
};
void work_fn(void *);
int main()
{
printf("Library Examples:\n");
// create new threaded work queue with default queue size
// workqueue_new_with_options can be used to define custom queue size and threading api.
// each queue owns its own background thread and its possible to create many queues in parallel.
struct WorkQueue *queue = workqueue_new();
printf("Queue Size: %zu Backlog Size: %zu\n", workqueue_get_queue_size(queue), workqueue_get_backlog_size(queue));
for (size_t index = 0; index < 20; index++)
{
struct FnArgs *args = malloc(sizeof(struct FnArgs));
args->counter = index;
if (!workqueue_push(queue, work_fn, args))
{
printf("Failed to push work function to queue\n");
free(args);
}
}
printf("Backlog Size: %zu\n", workqueue_get_backlog_size(queue));
// wait for queue to finish, queue can still be used afterwards
workqueue_drain(queue);
printf("Backlog Size: %zu\n", workqueue_get_backlog_size(queue));
// release when done
workqueue_release(queue);
return(0);
}
void work_fn(void *args)
{
struct FnArgs *fn_args = (struct FnArgs *)args;
sleep(1);
printf("Counter: %d\n", fn_args->counter);
free(fn_args);
}
See Changelog
Developed by Sagie Gur-Ari and licensed under the Apache 2 open source license.