// ---------- MAIN ----------
int main(int argc, char *argv[])
{
// variable declerations
int i = 0; // holds page values
size_t buffersize = 0; // for getline to allocate
ssize_t read; // status of getline
char *line = NULL; // holds a line from stdin
int cacheSize = atoi(argv[1]); // takes cache size given as command line parameter
int requestCount[cacheSize]; // holds the number of times a page is requested
int cache[cacheSize]; // holds the pages in memory
for (i = 0; i < cacheSize; ++i) // initialize cache and requestCount to 0
cache[i] = requestCount[i] = 0;
// get lines of input from stdin
while((read = getline(&line, &buffersize, stdin)) != -1)
{
// valid input starts with a digit
if(isdigit(line[0]))
{
requests++;
i = strtol(line, NULL, 10); // convert valid number from string to base 10 int
lfu(i, requestCount, cache, cacheSize);// call LRU function
}
}
fprintf(stdout, "%d\n%d\n", requests, faults);
return 0;
}
//TODO dynamically maintain all array sizes
int main(int argc, char** argv) {
int fr_no=5, s=0;
char rep_policy[20] = "FIFO";
char logpath[1024] = "input.txt";
for (s=1; s<argc; s++) {
if (strcmp(argv[s], "-f")==0) {
fr_no = atoi(argv[++s]);
} else if (strcmp(argv[s], "-r")==0) {
strcpy(rep_policy, argv[++s]);
} else if (strcmp(argv[s], "-i")==0) {
strcpy(logpath, argv[++s]);
} else if (strcmp(argv[s], "-h")==0) {
printf("help mode");
serverOptions();
} else {
printf("\n\nNo Options Passed, ...\n");
}
}
int i, j=0,nf=0;
if(fr_no>0){
nf=fr_no;
}
else{
printf("Enter proper frame value\n");
exit(0);
}
unsigned int input[16] ={0,1,2,3,0,1,2,3,0,1,2,3,4,5,6,7};//{1,2,3,4,1,2,5,1,2,3,4,5};
count_page=0;
//{ 1, 2, 3, 1, 1, 2, 4, 1, 3, 2, 1, 3 };// //TODO load the array size from file inputs
//Reading from file
FILE *f;
char res[1024];
f = fopen(logpath,"r");
if (f == NULL) {perror ("Error opening file..Exiting...\n");exit(0);}
else {
fgets(res,1024,f);
//puts(res);
char* str=NULL;
char delim[] = " ";
str=strtok(res,delim);
while(str!=NULL) {
input[i]=atoi(str);
i++;
count_page++;
str = strtok(NULL," ");
}
}
printf("%d %s %s\n", fr_no, rep_policy, logpath);
if (strcmp(rep_policy,"LRU-REF8")==0) {
printf("Executing LRU-Ref8\n");
pr1=lruRefBit(input, nf);
pr2 = optim(input, nf);
compare(rep_policy);
return 0;
}
/*else if(==2){
optim(input,nf);
return 0;
}*/
else if (strcmp(rep_policy,"LRU-STACK")==0) {
printf("Executing LRU-STACK\n");
pr1= lruStack(input, nf);
pr2 = optim(input, nf);
compare(rep_policy);
return 0;
} else if (strcmp(rep_policy,"LFU")==0) {
printf("Executing LFU\n");
pr1=lfu(input, nf);
pr2 = optim(input, nf);
compare(rep_policy);
return 0;
} else if (strcmp(rep_policy,"LRU-CLOCK")==0) {
pr1 = lruref8bit(input,nf);
pr2 = optim(input, nf);
compare(rep_policy);
} else {
pr1 = fifo(input, nf);
pr2 = optim(input, nf);
compare(rep_policy);
return 0;
}
}
