double frageval(int alg, int seed, int requests){
srand(seed);
int r = 0;
int s = 0;
void *p = NULL;
allocator_init(10240);
while (r < requests){
s = (rand() % 900) + 100;
p = allocate(alg, s);
deallocate(p);
}
double frag = average_frag();
return frag;
}
int main(int argc, char *argv[]) {
int policy;
unsigned int seed;
int requests;
/* temp pointer to the memory */
void *p = NULL;
int counter=0;
int s; /* temp size of the allocated memory */
double frag; /* Average fragmentation size */
if(argc!=4){
printf("usage: frag-eval [algorithm] [seed] [int requests]\n");
exit(-1);
}else{
policy=atoi(argv[1]);
seed=atoi(argv[2]);
requests=atoi(argv[3]);
}
#ifdef DEBUG
printf("policy: %d, seed: %u, requests: %d\n", policy, seed, requests);
#endif /* DEBUG */
srand(seed);
if(allocator_init(SIZE, policy)){
printf("init failed");
exit(-1);
}
#ifdef DEBUG
printf("successful init\n");
#endif /* DEBUG */
while(counter<requests) {
s = rand()%900+100;
printf("#################### Allocating size: %d#######################\n", s);
p = allocate(policy, s);
if(NULL==p) printf("\n");
else{
deallocate(p);
printf("------------------ Deallocated size: %d------------------\n\n",s);
}
counter++;
}
frag = average_frag();
printf("Average fragmentation size: %f\n", frag);
/*
printf("**********allocating blk1: 128************\n");
void *ptr1;
ptr1=allocate(128);
if(NULL==ptr1)
printf("allocation failed.\n");
else printf("blk1 is allocated: %p\n", ptr1);
printf("**********allocating blk2: 512************\n");
void *ptr2;
ptr2=allocate(512);
if(NULL==ptr2)
printf("allocation failed.\n");
else printf("blk2 is allocated: %p\n", ptr2);
printf("**********allocating blk3: 64************\n");
void *ptr3;
ptr3=allocate(64);
if(NULL==ptr3)
printf("allocation failed.\n");
else printf("blk3 is allocated: %p\n", ptr3);
printf("**********Deallocating blk2: 512************\n");
if(deallocate(ptr2)){
printf("failed deallocation");
exit(-1);
}else printf("blk2 is deallocated.\n");
printf("**********allocating blk4: 256************\n");
void *ptr4;
ptr4=allocate(256);
if(NULL==ptr4)
printf("allocation failed.\n");
else printf("blk4 is allocated: %p\n", ptr4);
printf("**********Deallocating blk3: 64************\n");
if(deallocate(ptr3)){
printf("failed deallocation");
exit(-1);
}else printf("blk3 is deallocated.\n");
printf("**********allocating blk5: 64************\n");
void *ptr5;
ptr5=allocate(64);
if(NULL==ptr5)
printf("allocation failed.\n");
else printf("blk5 is allocated: %p\n", ptr5);
printf("**********allocating blk6: 512************\n");
void *ptr6;
ptr6=allocate(512);
if(NULL==ptr6)
printf("allocation failed.\n");
else printf("blk6 is allocated: %p\n", ptr6);
*/
return 0;
}