From 1fae8c16a8c0634ffa44b4a2e25f3be4899ea7e2 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Sat, 17 Nov 2018 05:31:29 -0800
Subject: Convert threads.c to C++

Also vastly simplify and remove related code.
---
 common/uintmap.h | 62 +++++++++++++++++++++++++-------------------------------
 1 file changed, 28 insertions(+), 34 deletions(-)

(limited to 'common/uintmap.h')

diff --git a/common/uintmap.h b/common/uintmap.h
index 32868653..0646d2b5 100644
--- a/common/uintmap.h
+++ b/common/uintmap.h
@@ -1,41 +1,35 @@
 #ifndef AL_UINTMAP_H
 #define AL_UINTMAP_H
 
-#include <limits.h>
+#include <unordered_map>
+#include <mutex>
 
 #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(INT_MAX)
-
-void InitUIntMap(UIntMap *map, ALsizei limit);
-void ResetUIntMap(UIntMap *map);
-ALenum InsertUIntMapEntry(UIntMap *map, ALuint key, ALvoid *value);
-ALvoid *RemoveUIntMapKey(UIntMap *map, ALuint key);
-ALvoid *LookupUIntMapKey(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
+
+template<typename T0, typename T1>
+class ThrSafeMap {
+    std::unordered_map<T0, T1> mValues;
+    std::mutex mLock;
+
+public:
+    void InsertEntry(T0 key, T1 value) noexcept
+    {
+        std::lock_guard<std::mutex> _{mLock};
+        mValues[key] = value;
+    }
+
+    T1 RemoveKey(T0 key) noexcept
+    {
+        T1 retval{};
+
+        std::lock_guard<std::mutex> _{mLock};
+        auto iter = mValues.find(key);
+        if(iter != mValues.end())
+            retval = iter->second;
+        mValues.erase(iter);
+
+        return retval;
+    }
+};
 
 #endif /* AL_UINTMAP_H */
-- 
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