Implemented bucket memory structure for custom allocators

This commit is contained in:
2024-09-07 19:42:50 +10:00
parent 023cf9c8b5
commit 81417e7f32
13 changed files with 275 additions and 44 deletions

View File

@@ -19,4 +19,69 @@ void* Toy_reallocate(void* pointer, size_t oldSize, size_t newSize) {
}
return result;
}
}
//buckets of fun
void Toy_initBucket(Toy_Bucket** bucketHandle, size_t capacity) {
if (capacity == 0) {
fprintf(stderr, TOY_CC_ERROR "[internal] ERROR: Cannot init a bucket with zero capacity\n" TOY_CC_RESET);
exit(1);
}
(*bucketHandle) = malloc(sizeof(Toy_Bucket));
if ((*bucketHandle) == NULL) {
fprintf(stderr, TOY_CC_ERROR "[internal] ERROR: Failed to allocate space for a bucket\n" TOY_CC_RESET);
exit(1);
}
//initialize the bucket
(*bucketHandle)->next = NULL;
(*bucketHandle)->contents = NULL; //leave until the first partition
(*bucketHandle)->capacity = capacity;
(*bucketHandle)->count = 0;
}
void* Toy_partBucket(Toy_Bucket** bucketHandle, size_t space) {
if ((*bucketHandle) == NULL) {
fprintf(stderr, TOY_CC_ERROR "[internal] ERROR: Expected bucket, received NULL\n" TOY_CC_RESET);
exit(1);
}
//if out of space in the current bucket
if ((*bucketHandle)->capacity < (*bucketHandle)->count + space) {
//move to the next bucket
Toy_Bucket* tmp = NULL;
Toy_initBucket(&tmp, (*bucketHandle)->capacity);
tmp->next = (*bucketHandle);
(*bucketHandle) = tmp;
}
//if no space allocated for the current bucket
if ((*bucketHandle)->contents == NULL) {
//allocate space for the current bucket
(*bucketHandle)->contents = malloc((*bucketHandle)->capacity);
//double check
if ((*bucketHandle)->contents == NULL) {
fprintf(stderr, TOY_CC_ERROR "[internal] ERROR: Failed to allocate space for bucket contents\n" TOY_CC_RESET);
exit(1);
}
}
//track the new count, and return the specified memory space
(*bucketHandle)->count += space;
return ((*bucketHandle)->contents + (*bucketHandle)->count - space);
}
void Toy_freeBucket(Toy_Bucket** bucketHandle) {
while ((*bucketHandle) != NULL) {
//run down the chain
Toy_Bucket* ptr = (*bucketHandle);
(*bucketHandle) = (*bucketHandle)->next;
//clear the previous bucket from memory
free(ptr->contents);
free(ptr);
}
}