#include "mt_os.h"
#include "minithread.h"
#include "synch.h"
#include <stdio.h>

minithread_t minithread_fork(proc_t proc, arg_t arg) {
    minithread_t mt;
    mt =  (minithread_t)syscall(MT_ENTRY, MT_MINITHREAD_FORK, 
				proc, arg, NULL);
    return(mt);
}

minithread_t minithread_self() {
    return (minithread_t)syscall(MT_ENTRY, MT_MINITHREAD_SELF, NULL,
				 NULL, NULL);
}

void minithread_die() {
     syscall(MT_ENTRY, MT_MINITHREAD_DIE, NULL, NULL, NULL);
}

void minithread_yield() {
     syscall(MT_ENTRY, MT_MINITHREAD_YIELD, NULL, NULL, NULL);
}

semaphore_t semaphore_create() {
      semaphore_t sem;
      sem = (semaphore_t) syscall (MT_ENTRY,MT_SEMAPHORE_CREATE, NULL,
				   NULL, NULL);
      return sem;

}


void semaphore_initialize(semaphore_t sem, int cnt) {
      syscall(MT_ENTRY,MT_SEMAPHORE_INITIALIZE,sem,cnt, NULL);
}

void semaphore_destroy(semaphore_t sem)
{
  syscall(MT_ENTRY,MT_SEMAPHORE_DESTROY,sem, NULL, NULL);
}

void semaphore_P(semaphore_t sem) {
      syscall(MT_ENTRY,MT_SEMAPHORE_P,sem, NULL, NULL);
}

void semaphore_V(semaphore_t sem) {
      syscall(MT_ENTRY,MT_SEMAPHORE_V,sem, NULL, NULL);
}