int sys_link()
{
char *old_path, *new_path;
if(argptr(0, &old_path, 1) < 0 || argptr(1, &new_path, 1) < 0)
return -1;
return ilink(old_path, new_path);
}
//Create a new thread
int
sys_thread_create(void)
{
char* tmain, *stack, *arg;
if (argptr(0, &tmain, 1) < 0 || argptr(1, &stack, 1) < 0 || argptr(2, &arg, 1) < 0)
return -1;
return thread_create((void*)tmain, (void*)stack, (void*)arg);
}
int
sys_waitstat(void)
{
int *turnaround;
int *runningtime;
int n;
if(argptr(0, &turnaround,n) < 0)
return -1;
if(argptr(1, &runningtime,n) < 0)
return -1;
return waitstat(turnaround, runningtime);
}
int sys_t_sleep(void)
{
void *chan, *p_lk;
if(argptr(0, (void *)&chan, sizeof(void *)) < 0) {
return -1;
}
if(argptr(1, (void *)&p_lk, sizeof(void *)) < 0) {
return -1;
}
t_sleep(chan, (lock_t*)p_lk);
return 0;
}
int
sys_waitpid(void)
{
int pid;
argptr(0,(char**) &pid, 4); //Read PID variable from stack 4 bytes = int
int *status;
argptr(1,(char**) &status, 4); //Get reference to Status
int options;
argptr(2, (char**) &options, 4);
return waitpid(pid, status, options);
//int stuff;
//return waitpid(0, &stuff, 0);
}
int sys_clone(void){
void* fcn;
void* arg;
void* stack;
if(argptr(0, (void*)&fcn, sizeof(void *)) < 0){
return -1;
}
if(argptr(1, (void*)&arg, sizeof(void *)) < 0){
return -1;
}
if(argptr(2, (void*)&stack, sizeof(void *)) < 0){
return -1;
}
return clone(fcn, arg, stack);
}
int sys_csleep(void)
{
void *chan;
lock_t *lk;
if (argptr(0, (void*)&chan, sizeof(chan)) < 0)
{
return -1;
}
if (argptr(1, (void*)&lk, sizeof(lk)) < 0)
{
return -1;
}
csleep(chan, lk);
return 0;
}
/********************STUDENT********************/
int
sys_wait2(void)
{
int *w, *r;
int m, n;
n = argptr(0, (void *) &w, sizeof(*w));
m = argptr(1, (void *) &r, sizeof(*r));
if (m < 0 || n < 0)
return -1;
return wait2(w, r);
}
int
sys_clone(void)
{
void (*fcn)(void*);
void* arg;
void* stack;
if(argptr(0, (void*)&fcn, sizeof(void*)) < 0)
return -1;
if(argptr(1, (void*)&arg, sizeof(void*)) < 0)
return -1;
if(argptr(2, (void*)&stack, sizeof(void*)) < 0)
return -1;
return clone(fcn, arg, stack);
}
int sys_unlink()
{
char *path;
if(argptr(0, &path, 1) < 0)
return -1;
return iunlink(path);
}
int sys_checkpoint(void)
{
char *p = 0;
if (argptr(0, &p, sizeof(struct proc)) < 0)
return -1;
return checkpoint((struct proc *) p);
}
int
sys_wait(void)
{
int *status;
argptr(0, (char **) &status, sizeof(int*));
return wait(status);
}
// thread library
int
sys_clone(void)
{
void * ptr;
argptr(0, (char **) &ptr, sizeof(void*));
return clone(ptr);
}
long
sys_write(SyscallFrame *f)
{
int fd;
long l;
uintptr buf;
usize nbytes;
File *file;
// fd
if (argfd(f, 0, &fd) < 0)
return -1;
// nbytes (needed for argptr)
if (arglong(f, 2, &l) < 0) {
// todo errstr
return -1;
}
nbytes = (usize)l;
// buf
if (argptr(f, 1, &buf, nbytes) < 0) {
// todo errstr
return -1;
}
file = proc->files[fd];
if (!(file->omode &(OWRITE | ORDWR))) {
// todo errstr
return -1;
}
return file->write(file, (char *)buf, nbytes);
}
int
clone(void)
{
char* stack;
int i, pid, size;
struct proc *np;
cprintf("a\n");
// Allocate process.
if((np = allocproc()) == 0)
return -1;
// Point page dir at parent's page dir (shared memory)
np->pgdir = proc->pgdir;
// This might be an issue later.
np->sz = proc->sz;
np->parent = proc;
*np->tf = *proc->tf;
if(argint(1, &size) < 0 || size <= 0 || argptr(0, &stack, size) < 0) {
kfree(np->kstack);
np->kstack = 0;
np->state = UNUSED;
return -1;
}
<<<<<<< HEAD
int
sys_alarm(void)
{
/*PID = fork();
if(PID > 0)
{
cprintf("PID: %d\n", PID);
cprintf("\nSoy el padre\n");
PID=wait();
}
else if(PID == 0)
{
cprintf("PID: %d\n", PID);
cprintf("\nSoy el hijo\n");
exit();
}*/
int ticks;
void (*handler)();
/* cprintf("funciona\n");
//cprintf("%d\n",ticksG);
cprintf("%d\n",handler);
cprintf("%d\n",ticks);*/
//cprintf("%d\n",&sys_getpid);
if(argint(0, &ticks) < 0)
return -1;
if(argptr(1, (char**)&handler, 1) < 0)
return -1;
proc->alarmticks = ticks;
proc->alarmhandler = handler;
//cprintf("%d\n",proc->pid);
//proc->ticksInicio = ticksG;
return 0;
}
int
sys_clone(void)
{
char* p1;
char* p2;
//void(*fcn)(void*);
char* p0;
if(argptr(0, &p0, 4 < 0 || argptr(2, &p2, 4) < 0 || argptr(1, &p1, 1) < 0))
return -1;
/*p1 = (void*)p1;
p2 = (void*)p2;
p0 = (void (*)(void *))p0;*/
return clone((void (*)(void *))p0, (void*)p1, (void*)p2);
}
int sys_join(void){
void** stack;
if(argptr(0, (void*)&stack, sizeof(void *)) < 0){
return -1;
}
return join(stack);
}
//TODO shai start
int
sys_wait2(void){
char *wtime;
char *rtime;
//check and init the arguments
int check = argptr(0, &wtime, sizeof(wtime));
check = check + argptr(1, &rtime, sizeof(rtime));
//execute if args are correct
if(!check){
return (wait2((int*)wtime, (int*)rtime));
}
else{
return -1;
}
}
int sys_restore(void)
{
char *p = 0;
if (argptr(0, &p, sizeof(struct checkpoint_t)) < 0)
return -1;
return restore((struct checkpoint_t *)p);
}
int
sys_write(struct file *f, char *p, int n)
{
if(argfd(0, 0, &f) < 0 || argint(2, &n) < 0 || argptr(1, &p, n) < 0)
return -1;
return filewrite(f, p, n);
}
//returns pstat with some basic information about each running process
//how many times its run, pid, and which queue its on(high or low)
int sys_getpinfo(void)
{
struct pstat *ps;
if(argptr(0,(void*)&ps,sizeof(struct pstat *) < 0)) return -1;
//*ps = proc->pstat_t;
*ps = pst;
return 0; }
int
sys_fstat(struct file *f, struct stat *st)
{
if(argfd(0, 0, &f) < 0 || argptr(1, (void*)&st, sizeof(*st)) < 0)
return -1;
return filestat(f, st);
}
int sys_history(void) {
int n;
char * p;
argptr(0, &p, 128);
argint(1, &n);
return history(p, n);
}
int sys_getMsg()
{
struct Msg* ptr;
if (argptr(0, (void*)&ptr, sizeof(*ptr)) < 0)
return -1;
getMsg(proc->pid, ptr);
return 0;
}
int
sys_sem_broadcast(void)
{
struct semaphore * sem;
argptr(0, (char **) &sem, sizeof(struct semaphore*));
sem_broadcast(sem);
return 0;
}
int
sys_gettime(void) {
struct rtcdate *d;
if (argptr(0, (char **)&d, sizeof(struct rtcdate)) < 0)
return -1;
cmostime(d);
return 0;
}
int
sys_exit(void)
{
int status;
argptr(0, (char **) &status, 4);
exit(status);
return 0; // not reached
}
int
sys_cvwait(void)
{
void *cond;
void *lock;
if(argptr(0,(char**)&cond,sizeof(cond))<0)
{
return -1;
}
if(argptr(1,(char**)&lock,sizeof(lock))<0)
{
return -1;
}
cvwait(cond,lock);
return 0;
}
int
sys_wait2(void)
{
char *rtime=0;
char *wtime=0;
argptr(1,&rtime,sizeof(rtime));
argptr(0,&wtime,sizeof(wtime));
return wait2((int*)wtime, (int*)rtime);
}