PCFIFO - A C Producer-Consumer FIFO

This is a simple C lib to be used as a FIFO for producer-consumer implementations. It allows multiple producers and/or consumers.

Usage

1. Copy pcfifo.c and pcfifo.h to your project's directory
2. Include pcfifo.h where you want to use the API
3. Include pcfifo in your Makefile and don't forget to use -lpthread when linking

Example

A tipical code that uses pcfifo would be implemented as:

struct pcfifo pcf;

void producer()
{
        while (wants_to_produce) {
                element_t *e = produce();
                pcfifo_put(&pcf, e);
        }

	// Tell consumer threads to stop
        for (each consumer thread)
                pcfifo_put(&pcf, NULL);
}

void consumer()
{
        while(1) {
                element_t *e = pcfifo_get(&pcf);

                if (e == NULL) //Nothing more to consume
                        return;

                consume(e);
        }
}

int main() {
        pcfifo_init(&pcf);

        for(each producer)
                pthread_create(producer);

        for(each consumer)
                pthread_create(consumer);

	join_all_threads();
}

Authors

Written by Matheus Tavares and Giuliano Belinassi