/*
* ios/user functions API : open,close,read
*/
int devOpen(myDev * dev, char * name, int mode)
{
fifo * i = 0;
//Create a new fifo for this app and initialize it :
fifo * newFifo = malloc(sizeof(fifo));
if(newFifo==NULL)
{
errnoSet(MEM_OVERFLOW);
return -1;
}
initFifo(newFifo);
newFifo->taskId = taskIdSelf();
//From now on we'll acces the device data, let's require the sem :
if(semTake(dev->semMData,WAIT_FOREVER)!=OK)
{
free(newFifo);
errnoSet(SEM_ERR);
return -1;
}
dev->openned++; //keep track of the number of tasks that have openned this device
dev->mode = mode; //this seems useless, todo : check
//Add fifo at end of listeFifo :
if (dev->firstFifo==NULL)
{
dev->firstFifo = newFifo;
} else {
for (i=dev->firstFifo;i->nextFifo!=NULL;i=i->nextFifo);
i->nextFifo=newFifo;
}
semGive(dev->semMData);
return (int)dev; //pointer returned is used as arg in devClose!
}
int main(void) {
pthread_t idProductores[N_PRO], idConsumidores[N_CON];
char str[30];
int i;
FIFO fifo;
initFifo(&fifo);
for (i = 0; i < N_PRO; i++) pthread_create(&idProductores[i], NULL, producersFunction, (void*) &fifo);
for (i = 0; i < N_CON; i++) pthread_create(&idConsumidores[i], NULL, consumersFunction, (void*) &fifo);
for (i = 0; i < N_PRO; i++) pthread_join(idProductores[i], NULL);
for (i = 0; i < N_CON; i++) pthread_join(idConsumidores[i], NULL);
destroyFifo(&fifo);
printf("type \"Return\" to finish\n");
fgets(str, sizeof(str), stdin);
interrupt(&fifo);
return 0;
}
