static void CacheDummp(int isignal)
{
signal(SIGUSR1, CacheDummp);
FILE* fileDecriptor = fopen("MemoryDump.txt", "w");
//DumpBitArray(fileDecriptor);
DumpMemoryTable(fileDecriptor);
DumpFreeBlocks(fileDecriptor);
fclose(fileDecriptor);
}
int main()
{
unsigned int failed_count = 0;
unsigned int count;
void* memory;
char* alloc[1000];
memory = malloc(1 * 1024 * 1024);
InitialiseMemory(memory,(1*1024*1024));
if (!MemoryConsistancyCheck())
{
printf("after init\n");
DumpMemoryTable();
exit(1);
}
DumpMemoryTable();
for (count=1;count < 1000; count++)
{
if ((alloc[count] = AllocateMemory(1024)) == NULL)
{
failed_count++;
}
}
if (!MemoryConsistancyCheck())
{
DumpMemoryTable();
exit(1);
}
printf("Failed to allocate %d requests\n",failed_count);
MemoryConsistancyCheck();
printf("free 200\n");
FreeMemory(alloc[200]);
MemoryConsistancyCheck();
printf("free 202\n");
FreeMemory(alloc[202]);
MemoryConsistancyCheck();
printf("free 201\n");
FreeMemory(alloc[201]);
MemoryConsistancyCheck();
printf("before the next set deletes\n");
for (count=1;count < 10 /*00 - failed_count*/; count++)
{
FreeMemory(alloc[count]);
alloc[count] = NULL;
printf("free %d\n",count);
MemoryConsistancyCheck();
}
for (count=400;count > 300 /*00 - failed_count*/; count--)
{
FreeMemory(alloc[count]);
alloc[count] = NULL;
}
if (!MemoryConsistancyCheck())
{
DumpMemoryTable();
exit(1);
}
DumpMemoryTable();
{
int i;
for (i=0,count=100;count<400;count += 17)
{
printf("[%d] count: %d\n",i++,count);
if (AllocateMemory(count) == NULL)
{
printf("second round of allocations: size %d\n",count);
}
}
DumpMemoryTable();
}
/* free them again */
for (count=1;count < 1000 - failed_count; count++)
{
if (alloc[count] != NULL)
FreeMemory(alloc[count]);
if (!MemoryConsistancyCheck())
{
printf("count: %d\n",count);
DumpMemoryTable();
exit(1);
}
}
DumpMemoryTable();
DumpStatistics();
}
