void init_pcb_priority(struct pcb_s* pcb, func_t f, void* args ,unsigned int stack_size, unsigned int prio){
// STEP 1 : initialisation de la pcb lors de la creation d'un processus
pcb->pid = pid++;
pcb->state = ready;
pcb->priority = prio;
pcb->co = (int) start_current_process; // l'adresse de start_current_process est stockee dans co (program counter)
pcb->f = f;
pcb->argsPointer = args; //argument de la fonction f
pcb->startStack = (char*) phyAlloc_alloc(stack_size);
//On decale le pointeur de pile sp a cause du pop.
pcb->sp = (unsigned int*) (pcb->startStack + stack_size);
pcb->sp --;
*(pcb->sp) = 0x13;
pcb->sp--;
*(pcb->sp) = (unsigned int) &start_current_process;
pcb->sp -= 14;
// STEP 2 : liste chainee facon FIFO
if(pcb->pid == 0 ){
//etape initiale premier process cree
head = pcb;
pcb->next = NULL;
}else{
// on ajoute le process a la fin
tail->next = pcb;
}
//et on met a jour tail
tail = pcb;
}
void init_ctx( ctx_s* ctx, func_t f, unsigned int stack_size)
{
ctx->sp_end = phyAlloc_alloc(stack_size);
ctx->sp = ctx->sp_end + stack_size*MEM_UNIT;
ctx->pc = f;
}
