www.pudn.com > bank.rar > bank.c

#include 
 
#define state_ready		0 
#define state_waiting	-1 
#define state_finish	1 
#define resource		10 
#define process			4 
#define inputfile		"in.txt" 
#define outputfile		"out.txt" 
#define maxapply		20 
typedef struct pcb 
{ 
	int name ; 
	int state; 
	int current[resource]; 
	int claim[resource]; 
	int allocation[resource]; 
	int flag;  
}; 
 
typedef struct application 
{ 
	int name; 
	int number[resource]; 
	int state; 
}; 
 
struct application apply[maxapply]; 
struct pcb thepcb[process]; 
int amount[resource]; 
int avail[resource]; 
int napply; 
FILE*out; 
/*从in.txt中度入资源总量和各个分配请求*/ 
int initiate() 
{ 
	FILE*fp; 
	int i,j,n; 
	fp=fopen(inputfile,"r"); 
	for(i=0;i=process) 
			return 1; 
		apply[i].name=n; 
		for(j=0;jamount[j]) 
				return 1; 
	fclose(fp); 
	return 0; 
} 
/*把资源请求读入pcb表*/ 
void readapply(void) 
{ 
	int i,j,n; 
	for(i=0;ittavail[k]) 
						break; 
				} 
				if(k==resource) 
				{ 
					thepcb[j].flag=0; 
					for(k=0;kavail[k]) 
					break; 
			if(k==resource) 
			{ 
				fprintf(out,"process %d allocated ",i); 
				thepcb[i].state=state_ready; 
				for(k=0;k