c语言进程控制块怎么表示 用c语言编写模拟进程控制程序

用C语言结构状态描述进程控制块的信息 以下来自linux内核2.6.35.7版本的代码，在头文件linux/sched.h中定义struct task_struct {volatile long state；1 unrunnable，0 runnable，>；0 stopped*/void*stack；atomic_t usage；unsigned int flags；per process flags，defined below*/unsigned int ptrace；int lock_depth；BKL lock depth*/ifdef CONFIG_SMPifdef_ARCH_WANT_UNLOCKED_CTXSWint oncpu；endifendifint prio，static_prio，normal_prio；unsigned int rt_priority；const struct sched_class*sched_class；struct sched_entity se；struct sched_rt_entity rt；ifdef CONFIG_PREEMPT_NOTIFIERSlist of struct preempt_notifier：*/struct hlist_head preempt_notifiers；endiffpu_counter contains the number of consecutive context switchesthat the FPU is used.If this is over a threshold，the lazy fpusaving becomes unlazy to save the trap.This is an unsigned charso that after 256 times the counter wraps and the behavior turnslazy again；this to deal with bursty apps that only use FPU fora short timeunsigned char fpu_counter；ifdef CONFIG_BLK_DEV_IO_TRACEunsigned int 。用C语言编程模拟处理机调度（实现一种算法） #includeincludedefine getpch(type)(type*)malloc(sizeof(type))define NULL 0struct pcb {/*定义进程控制块PCB*/char name[10]；char state；int super；int ntime；int rtime；struct pcb*link；}*ready=NULL，*p；typedef struct pcb PCB；void sort()/*建立对进程进行优先级排列函数*/{PCB*first，*second；int insert=0；if((ready=NULL)|((p->；super)>；(ready->；super)))/*优先级最大者，插入队首*/{p->；link=ready；ready=p；}else/*进程比较优先级，插入适当的位置中*/{first=ready；second=first->；link；while(second。NULL){if((p->；super)>；(second->；super))/*若插入进程比当前进程优先数大，*/{/*插入到当前进程前面*/p->；link=second；first->；link=p；second=NULL；insert=1；}else/*插入进程优先数最低，则插入到队尾*/{first=first->；link；second=second->；link；}}if(insert=0)first->；link=p；}}void input()/*建立进程控制块函数*/{int i，num；system(\"cls\")；清屏*/printf(\"\\n 请输入进程数：\")；scanf(\"%d\"，&num)；for(i=1；i；i+){printf(\"\\n 进程号No.%d：\\n\"，i)；p=getpch(PCB)；printf(\"\\n 输入进程名：\")；scanf(\"%s\"，p->；name)；printf(\"\\n 输入进程优先数：\")；。怎样理解C语言的内存模型？怎样将它和操作系统执行的过程衔接起来？ 在C语言中，内存或数据分为四种类型，以下回答基于这点展开。第一种是只读文本区，这里主要放置一些常量…用c语言编写设计一个模拟有N个进程并行的进程调度程序 起码100分啊100分我给你编

#pcb#printf#进程控制块#c语言