dmmlib/test.c

#include <stdio.h>
#include "heap.h"
#include "other.h"
#include "posix_lock.h"
#include "LeaHeader.h"
#include "dmm_init.h"

/*
void *first_fit_search(unsigned int size, NODE *starting_node,
		char is_fixed_global) {
	NODE *node;

	node = starting_node;

	while(node) {

	}

}

*/

void *custom_malloc(heap_t* heap, size_t size);

void *custom_malloc(heap_t* heap, size_t size) {
	void *ptr;
	int fixed_list_id, i;
	MAPTABLE_NODE *current_maptable_node;

	ptr = NULL;

	posix_lock(heap);

	fixed_list_id = map_size_to_list(heap, size);
	
	// If a fixed list is found, do a first fit
	if(fixed_list_id != -1) {
		current_maptable_node = heap->maptable_head;
		// traverse through the maptable node list
		if(fixed_list_id != 0) {
			for(i = 1; i < fixed_list_id; i++) {
				current_maptable_node = current_maptable_node->next;
			}
		}
		ptr = current_maptable_node->fixed_list_head;
		current_maptable_node->fixed_list_head = ((NODE *) ptr)->next;
		set_requested_size(ptr, size);
		markInUse(ptr);
	}

	if(ptr == NULL) {
		// first fit from free list
	}

	posix_unlock(heap);

	return ptr;
}


int main(void) {
	allocator_t *myallocator;
	heap_t *myheap;
	int heap_id;

	myallocator = dmm_init();
	heap_id = map_thread_heap();
	printf("This thread accesses heap %d\n", heap_id);
	myheap = &myallocator->heaps[heap_id];
}