操作系统学习笔记(35)--创建新进程并调度

新进程创建：

 

1 初始化内存，分配内存页面

2 初始化内核进程

 

3 添加到进程列表 

 

然后通过进程调度器调度运行

 

/* * Schedule a thread that is waiting to run. * Must be called with interrupts off! * The current thread should already have been placed * on whatever queue is appropriate (i.e., either the * run queue if it is still runnable, or a wait queue * if it is waiting for an event to occur). */ void Schedule(void) { struct Kernel_Thread* runnable; /* Make sure interrupts really are disabled */ KASSERT(!Interrupts_Enabled()); /* Preemption should not be disabled. */ KASSERT(!g_preemptionDisabled); /* Get next thread to run from the run queue