Changeset 20561 in vbox for trunk

Timestamp:

Jun 14, 2009 6:37:44 PM (15 years ago)

Author:

vboxsync

Message:

iprt: Implemented RTMemPoolDestroy

File:

• trunk/src/VBox/Runtime/generic/mempool-generic.cpp (modified) (2 diffs)

trunk/src/VBox/Runtime/generic/mempool-generic.cpp

@@ -159 +159 @@
 RTDECL(int) RTMemPoolDestroy(RTMEMPOOL hMemPool)
 {
-
-    return VERR_NOT_IMPLEMENTED;
-}
-
+    if (hMemPool == NIL_RTMEMPOOL)
+        return VINF_SUCCESS;
+    PRTMEMPOOLINT pMemPool = hMemPool;
+    RTMEMPOOL_VALID_RETURN_RC(pMemPool, VERR_INVALID_HANDLE);
+    if (pMemPool == &g_rtMemPoolDefault)
+        return VINF_SUCCESS;
+
+    /*
+     * Invalidate the handle and free all associated resources.
+     */
+    ASMAtomicWriteU32(&pMemPool->u32Magic, RTMEMPOOL_MAGIC_DEAD);
+
+    int rc = RTSpinlockDestroy(pMemPool->hSpinLock); AssertRC(rc);
+    pMemPool->hSpinLock = NIL_RTSPINLOCK;
+
+    PRTMEMPOOLENTRY pEntry = pMemPool->pHead;
+    pMemPool->pHead = NULL;
+    while (pEntry)
+    {
+        PRTMEMPOOLENTRY pFree = pEntry;
+        pEntry = pEntry->pNext;
+
+        pFree->pMemPool = NULL;
+        pFree->pNext = NULL;
+        pFree->pPrev = NULL;
+        pFree->cRefs = UINT32_MAX - 3;
+        RTMemFree(pFree);
+    }
+
+    RTMemFree(pMemPool);
+
+    return VINF_SUCCESS;
+}
 
 
@@ -353 +382 @@
     {
         rtMemPoolUnlink(pEntry);
+        pEntry->cRefs = UINT32_MAX - 2;
         RTMemFree(pEntry);
     }