/*
* Exit system call.
* The interrupted user process is terminated.
* Params:
* state->ebx - process exit code
* Returns:
* Never returns to user mode!
*/
static int Sys_Exit(struct Interrupt_State* state)
{
Enable_Interrupts();
Detach_User_Context(g_currentThread);
Disable_Interrupts();
Exit(state->ebx);
return 0;
}
/*
* Destroy given thread.
* This function should perform all cleanup needed to
* reclaim the resources used by a thread.
* Called with interrupts enabled.
*/
static void Destroy_Thread(struct Kernel_Thread* kthread)
{
Detach_User_Context(kthread); // improtant
/* Dispose of the thread's memory. */
Disable_Interrupts();
Free_Page(kthread->stackPage);
Free_Page(kthread);
/* Remove from list of all threads */
Remove_From_All_Thread_List(&s_allThreadList, kthread);
Enable_Interrupts();
}
