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#import "OFList.h"
@implementation OFList
- init
{
if ((self = [super init])) {
first = NULL;
last = NULL;
last = NULL;
retain_and_release = YES;
}
return self;
}
- initWithRetainAndReleaseEnabled: (BOOL)enabled
{
if ((self = [super init])) {
first = NULL;
last = NULL;
retain_and_release = enabled;
}
return self;
}
- free
{
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if (last != NULL)
last->next = o;
last = o;
if (first == NULL)
first = o;
if (retain_and_release)
[obj retain];
[obj retain];
return o;
}
- (of_list_object_t*)prepend: (id)obj
{
of_list_object_t *o = [self getMemWithSize: sizeof(of_list_object_t)];
o->object = obj;
o->next = first;
o->prev = NULL;
if (first != NULL)
first->prev = o;
first = o;
if (last == NULL)
last = o;
if (retain_and_release)
[obj retain];
[obj retain];
return o;
}
- (of_list_object_t*)insert: (id)obj
before: (of_list_object_t*)listobj
{
of_list_object_t *o = [self getMemWithSize: sizeof(of_list_object_t)];
o->object = obj;
o->next = listobj;
o->prev = listobj->prev;
if (listobj->prev != NULL)
listobj->prev->next = o;
listobj->prev = o;
if (listobj == first)
first = o;
if (retain_and_release)
[obj retain];
[obj retain];
return o;
}
- (of_list_object_t*)insert: (id)obj
after: (of_list_object_t*)listobj
{
of_list_object_t *o = [self getMemWithSize: sizeof(of_list_object_t)];
o->object = obj;
o->next = listobj->next;
o->prev = listobj;
if (listobj->next != NULL)
listobj->next->prev = o;
listobj->next = o;
if (listobj == last)
last = o;
if (retain_and_release)
[obj retain];
[obj retain];
return o;
}
- remove: (of_list_object_t*)listobj
{
if (listobj->prev != NULL)
listobj->prev->next = listobj->next;
if (listobj->next != NULL)
listobj->next->prev = listobj->prev;
if (first == listobj)
first = listobj->next;
if (last == listobj)
last = listobj->prev;
if (retain_and_release)
[listobj->object release];
[self freeMem: listobj];
return self;
}
@end
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