int main(int argc, char *argv[])
{
if (argc < 4) {
std::cout << "Usage: basiclife <rows> <cols> <numstart> <generations> <prefix>" << std::endl;
return 0;
}
int rows = atoi(argv[1]);
int cols = atoi(argv[2]);
int numStart = atoi(argv[3]);
int numGenerations = atoi(argv[4]);
std::string prefix(argv[5]);
std::vector< std::vector<bool> > arena;
initializeArena(arena, rows, cols, numStart);
int generationCount = 0;
while (generationCount < numGenerations) {
writeGenerationToFile(arena, prefix, generationCount);
computeNextGeneration(arena);
generationCount++;
}
}
void *nextFitAllocRegion(size_t s) {
size_t asize = align8(s);
BlockPrefix_t *p;
if (arenaBegin == 0) /* arena uninitialized? */
initializeArena();
p = findNextFit(s); /* find a block */
if (p) { /* found a block */
size_t availSize = computeUsableSpace(p);
if (availSize >= (asize + prefixSize + suffixSize + 8)) { /* split block? */
void *freeSliverStart = (void *)p + prefixSize + suffixSize + asize;
void *freeSliverEnd = computeNextPrefixAddr(p);
makeFreeBlock(freeSliverStart, freeSliverEnd - freeSliverStart);
makeFreeBlock(p, freeSliverStart - (void *)p); /* piece being allocated */
}
p->allocated = 1; /* mark as allocated */
return prefixToRegion(p); /* convert to *region */
} else { /* failed */
return (void *)0;
}
}
