ObjFW  Diff

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#import "OFObject.h"
#import "OFExceptions.h"

@implementation OFObject
- init
{
	if ((self = [super init]) != nil)
		__mem_pool = NULL;


	return self;
}

- free
{
	struct __ofobject_allocated_mem *iter, *iter2;

	for (iter = __mem_pool; iter != NULL; iter = iter2) {
		iter2 = iter->prev;
		free(iter->ptr);
		free(iter);
	}



	free(self);

	return nil;
}

- (void*)getMemWithSize: (size_t)size
{
	struct __ofobject_allocated_mem *iter;


	if (size == 0)
		return NULL;


	if ((iter = malloc(sizeof(struct __ofobject_allocated_mem))) == NULL) {


		[[OFNoMemException newWithObject: self
					andSize: sizeof(struct
						     __ofobject_allocated_mem)
		    ] raise];
	}





	if ((iter->ptr = malloc(size)) == NULL) {
		free(iter);
		[[OFNoMemException newWithObject: self
					andSize: size] raise];
	}

	iter->next = NULL;
	iter->prev = __mem_pool;

	if (__mem_pool != NULL)
		__mem_pool->next = iter;

	__mem_pool = iter;

	return iter->ptr;
}

- (void*)getMemForNItems: (size_t)nitems
		  ofSize: (size_t)size
{
	size_t memsize;
	
	if (nitems == 0 || size == 0)
		return NULL;

	if (nitems > SIZE_MAX / size)
		[[OFOutOfRangeException newWithObject: self] raise];

	memsize = nitems * size;
	return [self getMemWithSize: memsize];
}

- (void*)resizeMem: (void*)ptr
	    toSize: (size_t)size
{
	struct __ofobject_allocated_mem *iter;

	if (ptr == NULL)
		return [self getMemWithSize: size];

	if (size == 0) {
		[self freeMem: ptr];
		return NULL;
	}

	for (iter = __mem_pool; iter != NULL; iter = iter->prev) {
		if (iter->ptr == ptr) {
			if ((ptr = realloc(iter->ptr, size)) == NULL)
				[[OFNoMemException newWithObject: self
							 andSize: size] raise];
			
			iter->ptr = ptr;
			return ptr;
		}
	}

	[[OFMemNotPartOfObjException newWithObject: self
					andPointer: ptr] raise];
	return NULL;	/* never reached, but makes gcc happy */







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#import "OFObject.h"
#import "OFExceptions.h"

@implementation OFObject
- init
{
	if ((self = [super init]) != nil) {
		__memchunks = NULL;
		__memchunks_size = 0;
	}
	return self;
}

- free
{
	size_t i;

	for (i = 0; i < __memchunks_size; i++)


		free(__memchunks[i]);

	if (__memchunks != NULL)
		free(__memchunks);

	free(self);

	return nil;
}

- (void*)getMemWithSize: (size_t)size
{
	void *ptr, **memchunks;
	size_t memchunks_size;

	if (size == 0)
		return NULL;

	memchunks_size = __memchunks_size + 1;

	if (SIZE_MAX - __memchunks_size == 0 ||
	    memchunks_size > SIZE_MAX / sizeof(void*))
		[[OFOutOfRangeException newWithObject: self] raise];



	
	if ((memchunks = realloc(__memchunks,
	    memchunks_size * sizeof(void*))) == NULL)
		[[OFNoMemException newWithObject: self
					 andSize: memchunks_size] raise];

	if ((ptr = malloc(size)) == NULL) {
		free(memchunks);
		[[OFNoMemException newWithObject: self
					 andSize: size] raise];
	}


	__memchunks = memchunks;
	__memchunks[__memchunks_size] = ptr;


	__memchunks_size = memchunks_size;


	return ptr;
}

- (void*)getMemForNItems: (size_t)nitems
		  ofSize: (size_t)size
{
	size_t memsize;
	
	if (nitems == 0 || size == 0)
		return NULL;

	if (nitems > SIZE_MAX / size)
		[[OFOutOfRangeException newWithObject: self] raise];

	memsize = nitems * size;
	return [self getMemWithSize: memsize];
}

- (void*)resizeMem: (void*)ptr
	    toSize: (size_t)size
{
	size_t i;

	if (ptr == NULL)
		return [self getMemWithSize: size];

	if (size == 0) {
		[self freeMem: ptr];
		return NULL;
	}

	for (i = 0; i < __memchunks_size; i++) {
		if (__memchunks[i] == ptr) {
			if ((ptr = realloc(ptr, size)) == NULL)
				[[OFNoMemException newWithObject: self
							 andSize: size] raise];
			
			__memchunks[i] = ptr;
			return ptr;
		}
	}

	[[OFMemNotPartOfObjException newWithObject: self
					andPointer: ptr] raise];
	return NULL;	/* never reached, but makes gcc happy */
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	memsize = nitems * size;
	return [self resizeMem: ptr
			toSize: memsize];
}

- freeMem: (void*)ptr;
{
	struct __ofobject_allocated_mem *iter;


	for (iter = __mem_pool; iter != NULL; iter = iter->prev) {
		if (iter->ptr == ptr) {


			if (iter->prev != NULL) 




				iter->prev->next = iter->next;
			if (iter->next != NULL)


				iter->next->prev = iter->prev;
			if (__mem_pool == iter)

				__mem_pool = iter->prev;


			free(iter);







			free(ptr);




			return self;
		}
	}

	[[OFMemNotPartOfObjException newWithObject: self
					andPointer: ptr] raise];
	return self	/* never reached, but makes gcc happy */;
}
@end







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	memsize = nitems * size;
	return [self resizeMem: ptr
			toSize: memsize];
}

- freeMem: (void*)ptr;
{
	void *last, **memchunks;
	size_t i, memchunks_size;

	for (i = 0; i < __memchunks_size; i++) {
		if (__memchunks[i] == ptr) {
			memchunks_size = __memchunks_size - 1;
			last = __memchunks[memchunks_size];

			if (__memchunks_size == 0 ||
			    memchunks_size > SIZE_MAX / sizeof(void*))
				[[OFOutOfRangeException newWithObject: self]
				    raise];

			if (memchunks_size == 0) {
				free(ptr);
				free(__memchunks);

				__memchunks = NULL;
				__memchunks_size = 0;

				return self;
			}

			if ((memchunks = realloc(__memchunks,
			    memchunks_size * sizeof(void*))) == NULL)
				[[OFNoMemException newWithObject: self
							 andSize:
							     memchunks_size]
				    raise];

			free(ptr);
			__memchunks = memchunks;
			__memchunks[i] = last;
			__memchunks_size = memchunks_size;

			return self;
		}
	}

	[[OFMemNotPartOfObjException newWithObject: self
					andPointer: ptr] raise];
	return self	/* never reached, but makes gcc happy */;
}
@end