First Commit

libui-ng/darwin/map.m

@@ -0,0 +1,61 @@
+// 17 august 2015
+#import "uipriv_darwin.h"
+
+// unfortunately NSMutableDictionary copies its keys, meaning we can't use it for pointers
+// hence, this file
+// we could expose a NSMapTable directly, but let's treat all pointers as opaque and hide the implementation, just to be safe and prevent even more rewrites later
+struct uiprivMap {
+	NSMapTable *m;
+};
+
+uiprivMap *uiprivNewMap(void)
+{
+	uiprivMap *m;
+
+	m = uiprivNew(uiprivMap);
+	m->m = [[NSMapTable alloc] initWithKeyOptions:(NSPointerFunctionsOpaqueMemory | NSPointerFunctionsOpaquePersonality)
+		valueOptions:(NSPointerFunctionsOpaqueMemory | NSPointerFunctionsOpaquePersonality)
+		capacity:0];
+	return m;
+}
+
+void uiprivMapDestroy(uiprivMap *m)
+{
+	if ([m->m count] != 0)
+		uiprivImplBug("attempt to destroy map with items inside");
+	[m->m release];
+	uiprivFree(m);
+}
+
+void *uiprivMapGet(uiprivMap *m, void *key)
+{
+	return NSMapGet(m->m, key);
+}
+
+void uiprivMapSet(uiprivMap *m, void *key, void *value)
+{
+	NSMapInsert(m->m, key, value);
+}
+
+void uiprivMapDelete(uiprivMap *m, void *key)
+{
+	NSMapRemove(m->m, key);
+}
+
+void uiprivMapWalk(uiprivMap *m, void (*f)(void *key, void *value))
+{
+	NSMapEnumerator e;
+	void *k, *v;
+
+	e = NSEnumerateMapTable(m->m);
+	k = NULL;
+	v = NULL;
+	while (NSNextMapEnumeratorPair(&e, &k, &v))
+		f(k, v);
+	NSEndMapTableEnumeration(&e);
+}
+
+void uiprivMapReset(uiprivMap *m)
+{
+	NSResetMapTable(m->m);
+}