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int main(int ac, char **av)
{
int NUM = ac > 1 ? atoi(av[1]) : 0;
int REPS = ac > 2 ? atoi(av[2]) : 0;
int c1 = 0, c2 = 0;
for (int x = 0; x < REPS; x++) {
char* allocations[NUM];
for (int i = 0; i < NUM/2; i++) {
allocations[i] = (char*)malloc((11*i)%1024 + x);
//printf("zz alloc: %d\n", (int)allocations[i]);
assert(allocations[i]);
if (i > 10 && i%4 == 1 && allocations[i-10]) {
//printf("zz free: %d\n", (int)allocations[i-10]);
free(allocations[i-10]);
allocations[i-10] = NULL;
}
}
for (int i = NUM/2; i < NUM; i++) {
allocations[i] = (char*)malloc(1024*(i+1));
//printf("zz alloc: %d\n", (int)allocations[i]);
assert(allocations[i]);
if (i > 10 && i%4 != 1 && allocations[i-10]) {
//printf("zz free: %d\n", (int)allocations[i-10]);
free(allocations[i-10]);
allocations[i-10] = NULL;
}
}
char* first = allocations[0];
for (int i = 0; i < NUM; i++) {
if (allocations[i]) {
//printf("zz free: %d\n", (int)allocations[i]);
free(allocations[i]);
}
}
char *last = (char*)malloc(512); // should be identical, as we free'd it all
//printf("zz last: %d\n", (int)last);
char *newer = (char*)malloc(512); // should be different
//printf("zz newer: %d\n", (int)newer);
c1 += first == last;
c2 += first == newer;
}
printf("*%d,%d*\n", c1, c2);
}
/* Some debugging tools: Make JS and native code work exactly the same */
/*
time_t time ( time_t * timer )
{
if (timer) *timer = 1;
return 1;
}
long sysconf(int name)
{
printf("sysconf: %d (30 is page size)\n", name);
return 4096;
}
void *sbrk(intptr_t increment)
{
static char spaace[1024*1024*1];
static intptr_t where = 0;
printf("sbrk! spaace=%d (%d,%d)\n", (int)&spaace[0], where, increment); // copy the value printed at runtime here in native code into your js
void *ret = &spaace[where];
where += increment;
return ret;
}
*/
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