1 files changed, 46 insertions, 0 deletions
diff --git a/common/uintmap.h b/common/uintmap.h
new file mode 100644
index 00000000..f70d99fd
--- /dev/null
+++ b/common/uintmap.h
@@ -0,0 +1,46 @@
+#ifndef AL_UINTMAP_H
+#define AL_UINTMAP_H
+
+#include "AL/al.h"
+#include "rwlock.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct UIntMap {
+    ALuint *keys;
+    /* Shares memory with keys. */
+    ALvoid **values;
+
+    ALsizei size;
+    ALsizei capacity;
+    ALsizei limit;
+    RWLock lock;
+} UIntMap;
+#define UINTMAP_STATIC_INITIALIZE_N(_n) { NULL, NULL, 0, 0, (_n), RWLOCK_STATIC_INITIALIZE }
+#define UINTMAP_STATIC_INITIALIZE UINTMAP_STATIC_INITIALIZE_N(~0)
+
+void InitUIntMap(UIntMap *map, ALsizei limit);
+void ResetUIntMap(UIntMap *map);
+ALenum InsertUIntMapEntry(UIntMap *map, ALuint key, ALvoid *value);
+ALenum InsertUIntMapEntryNoLock(UIntMap *map, ALuint key, ALvoid *value);
+ALvoid *RemoveUIntMapKey(UIntMap *map, ALuint key);
+ALvoid *RemoveUIntMapKeyNoLock(UIntMap *map, ALuint key);
+ALvoid *LookupUIntMapKey(UIntMap *map, ALuint key);
+ALvoid *LookupUIntMapKeyNoLock(UIntMap *map, ALuint key);
+
+inline void LockUIntMapRead(UIntMap *map)
+{ ReadLock(&map->lock); }
+inline void UnlockUIntMapRead(UIntMap *map)
+{ ReadUnlock(&map->lock); }
+inline void LockUIntMapWrite(UIntMap *map)
+{ WriteLock(&map->lock); }
+inline void UnlockUIntMapWrite(UIntMap *map)
+{ WriteUnlock(&map->lock); }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* AL_UINTMAP_H */