import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

xpcom/reflect/xptinfo/xptiWorkingSet.cpp

@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=8 sts=4 et sw=4 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* Implementation of xptiWorkingSet. */
+
+#include "mozilla/XPTInterfaceInfoManager.h"
+
+#include "xptiprivate.h"
+#include "nsString.h"
+
+using namespace mozilla;
+
+static const size_t XPTI_ARENA8_BLOCK_SIZE = 16 * 1024;
+static const size_t XPTI_ARENA1_BLOCK_SIZE =  8 * 1024;
+
+static const uint32_t XPTI_HASHTABLE_LENGTH = 1024;
+
+XPTInterfaceInfoManager::xptiWorkingSet::xptiWorkingSet()
+    : mTableReentrantMonitor("xptiWorkingSet::mTableReentrantMonitor")
+    , mIIDTable(XPTI_HASHTABLE_LENGTH)
+    , mNameTable(XPTI_HASHTABLE_LENGTH)
+{
+    MOZ_COUNT_CTOR(xptiWorkingSet);
+
+    gXPTIStructArena = XPT_NewArena(XPTI_ARENA8_BLOCK_SIZE,
+                                    XPTI_ARENA1_BLOCK_SIZE);
+}
+
+void
+XPTInterfaceInfoManager::xptiWorkingSet::InvalidateInterfaceInfos()
+{
+    ReentrantMonitorAutoEnter monitor(mTableReentrantMonitor);
+    for (auto iter = mNameTable.Iter(); !iter.Done(); iter.Next()) {
+        xptiInterfaceEntry* entry = iter.UserData();
+        entry->LockedInvalidateInterfaceInfo();
+    }
+}
+
+XPTInterfaceInfoManager::xptiWorkingSet::~xptiWorkingSet()
+{
+    MOZ_COUNT_DTOR(xptiWorkingSet);
+
+    // Only destroy the arena if we're doing leak stats. Why waste shutdown
+    // time touching pages if we don't have to?
+#ifdef NS_FREE_PERMANENT_DATA
+    XPT_DestroyArena(gXPTIStructArena);
+#endif
+}
+
+XPTArena* gXPTIStructArena;