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#include "Rts.h"
#include <stdio.h>
// 16 * 64 == max 1GB
const int MAXALLOC = 16;
const int ARRSIZE = 64;
const int LOOPS = 1000;
const int SEED = 0xf00f00;
extern StgWord mblocks_allocated;
int main (int argc, char *argv[])
{
int i, j, b;
void *a[ARRSIZE];
nat sizes[ARRSIZE];
srand(SEED);
{
RtsConfig conf = defaultRtsConfig;
conf.rts_opts_enabled = RtsOptsAll;
hs_init_ghc(&argc, &argv, conf);
}
// repeatedly sweep though the array, allocating new random-sized
// objects and deallocating the old ones.
for (i=0; i < LOOPS; i++)
{
for (j=0; j < ARRSIZE; j++)
{
if (i > 0)
{
freeMBlocks(a[j], sizes[j]);
}
b = (rand() % MAXALLOC) + 1;
a[j] = getMBlocks(b);
sizes[j] = b;
}
}
releaseFreeMemory();
for (j=0; j < ARRSIZE; j++)
{
freeMBlocks(a[j], sizes[j]);
}
releaseFreeMemory();
// this time, sweep forwards allocating new blocks, and then
// backwards deallocating them.
for (i=0; i < LOOPS; i++)
{
for (j=0; j < ARRSIZE; j++)
{
b = (rand() % MAXALLOC) + 1;
a[j] = getMBlocks(b);
sizes[j] = b;
}
for (j=ARRSIZE-1; j >= 0; j--)
{
freeMBlocks(a[j], sizes[j]);
}
}
releaseFreeMemory();
hs_exit(); // will do a memory leak test
exit(0);
}
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