static void
trap_dispatch(struct Trapframe *tf)
{
// Handle processor exceptions.
// LAB 3: Your code here.
//---------------------------------------- Lab3 ------------------------------------------------------------
if (tf->tf_trapno == T_PGFLT) {
//cprintf("pagefault!\n");
page_fault_handler(tf);
return;
}
if (tf->tf_trapno == T_BRKPT) {
//cprintf("brkpt!\n");
monitor(tf);
return;
}
if (tf->tf_trapno == T_DEBUG) {
my_monitor(tf);
return;
}
if (tf->tf_trapno == T_SYSCALL) {
//cprintf("Syscall!\n");
tf->tf_regs.reg_eax = syscall(tf->tf_regs.reg_eax, tf->tf_regs.reg_edx, tf->tf_regs.reg_ecx,
tf->tf_regs.reg_ebx, tf->tf_regs.reg_edi, tf->tf_regs.reg_esi);
if (tf->tf_regs.reg_eax < 0)
panic("syscall failed: %e\n", tf->tf_regs.reg_eax);
return;
}
//---------------------------------------- Lab3 ------------------------------------------------------------
// Handle spurious interrupts
// The hardware sometimes raises these because of noise on the
// IRQ line or other reasons. We don't care.
if (tf->tf_trapno == IRQ_OFFSET + IRQ_SPURIOUS) {
cprintf("Spurious interrupt on irq 7\n");
print_trapframe(tf);
return;
}
// Handle clock interrupts. Don't forget to acknowledge the
// interrupt using lapic_eoi() before calling the scheduler!
// LAB 4: Your code here.
//------------ Lab4 ----------------------------------------------------------------------------------------
if (tf->tf_trapno == IRQ_OFFSET + IRQ_TIMER) {
// cprintf("clock interrupt!\n");
lapic_eoi();
sched_yield();
return;
}
//------------ Lab4 ----------------------------------------------------------------------------------------
// Unexpected trap: The user process or the kernel has a bug.
print_trapframe(tf);
if (tf->tf_cs == GD_KT)
panic("unhandled trap in kernel");
else {
env_destroy(curenv);
return;
}
}
void MonitorWindow::full_redraw() {
// Do not call PlatformWindow::full_redraw();
// It does Begin/End Updates which mess up the spy.
my_monitor()->full_redraw();
}
void MonitorWindow::close() {
if (pw->is_open())
pw->close();
if (my_monitor()->is_active())
my_monitor()->deactivate();
}
void MonitorWindow::adjust_after_resize() {
my_monitor()->adjust_after_resize();
pw->adjust_after_resize();
}
int MonitorWindow::initial_height() { return my_monitor()->contents_height() + pw->inset_top() + pw->inset_bottom(); }
