//place holder for sys_getpinfo
int
sys_getpinfo(void)
{
char *p;
if(argptr(0, &p, sizeof(struct pstat)) < 0)
return -1;
get_pinfo((struct pstat *)p);
return 0;
}
void for_each_pinfo (void (*func) (struct pinfo *info, void *data), void *data)
{
struct pinfo info;
DIR *d;
d = opendir (PROCDIR);
if (d < 0) errx (EXIT_FAILURE, NULL);
while (get_pinfo (&info, d) ) {
(*func) (&info, data);
}
closedir (d);
}
/**
* Call by the exeption to handle the syscall
* \private
*/
void
syscall_handler(registers_t * regs)
{
int32_t res = 0;
int32_t syscall = regs->v_reg[0]; // code of the syscall
switch (syscall)
{
case FOURCHETTE:
res =
create_proc(get_arg((char **) regs->a_reg[2], 0), regs->a_reg[0],
regs->a_reg[1], (char **) regs->a_reg[2]);
break;
case PRINT:
res = print_string((char *) regs->a_reg[0]);
return; /* We save the good return value in the pcb */
case READ:
res = read_string((char *) regs->a_reg[0], regs->a_reg[1]);
return; /* We save the good return value in the pcb */
case FPRINT:
if (regs->a_reg[0] == CONSOLE)
kprint((char *) regs->a_reg[1]);
else
kmaltaprint8((char *) regs->a_reg[1]);
break;
case SLEEP:
res = go_to_sleep(regs->a_reg[0]);
break;
case BLOCK:
res = kblock(regs->a_reg[0], BLOCKED);
break;
case UNBLOCK:
kwakeup(regs->a_reg[0]);
break;
case WAIT:
res = waitfor(regs->a_reg[0], (int32_t *) regs->a_reg[1]);
break;
case SEND:
res =
send_msg(pcb_get_pid(get_current_pcb()), (msg_arg *) regs->a_reg[0]);
break;
case RECV:
res =
recv_msg(pcb_get_pid(get_current_pcb()), (msg_arg *) regs->a_reg[0]);
if (res == NOTFOUND)
go_to_sleep(((msg_arg *) regs->a_reg[0])->timeout);
break;
case PERROR:
kperror((char *) regs->a_reg[0]);
break;
case GERROR:
res = kgerror();
break;
case SERROR:
kserror(regs->a_reg[0]);
break;
case GETPINFO:
res = get_pinfo(regs->a_reg[0], (pcbinfo *) regs->a_reg[1]);
break;
case GETPID:
res = pcb_get_pid(get_current_pcb());
break;
case GETALLPID:
res = get_all_pid((int *) regs->a_reg[0]);
break;
case CHGPPRI:
res = chg_ppri(regs->a_reg[0], regs->a_reg[1]);
break;
case KILL:
res = kkill(regs->a_reg[0]);
break;
case EXIT:
kexit(regs->a_reg[0]);
break;
default:
kprintln("ERROR: Unknown syscall");
break;
}
// saves the return code
regs->v_reg[0] = res;
return;
}
