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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:49:04 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:49:04 +0000
commit16f504a9dca3fe3b70568f67b7d41241ae485288 (patch)
treec60f36ada0496ba928b7161059ba5ab1ab224f9d /src/libs/xpcom18a4/xpcom/base/nsLeakDetector.cpp
parentInitial commit. (diff)
downloadvirtualbox-16f504a9dca3fe3b70568f67b7d41241ae485288.tar.xz
virtualbox-16f504a9dca3fe3b70568f67b7d41241ae485288.zip
Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/base/nsLeakDetector.cpp')
-rw-r--r--src/libs/xpcom18a4/xpcom/base/nsLeakDetector.cpp248
1 files changed, 248 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/base/nsLeakDetector.cpp b/src/libs/xpcom18a4/xpcom/base/nsLeakDetector.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Mozilla browser.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications, Inc.
+ * Portions created by the Initial Developer are Copyright (C) 1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ * Patrick C. Beard <beard@netscape.com>
+ * Scott Collins <scc@mozilla.org>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#if defined(GC_LEAK_DETECTOR)
+
+#include "nsLeakDetector.h"
+#include "nsCOMPtr.h"
+#include "nsIComponentManager.h"
+#include "nsIServiceManager.h"
+#include "nsIGenericFactory.h"
+#include "nsILeakDetector.h"
+#include "nsICollection.h"
+
+#include <stdio.h>
+#include <time.h>
+
+#include "gc.h"
+
+extern "C" {
+extern FILE *GC_stdout, *GC_stderr;
+extern void GC_trace_object(GC_PTR object, int verbose);
+extern void GC_mark_object(GC_PTR object, GC_word mark);
+}
+
+static nsresult nextLeakFile()
+{
+ if (GC_stderr != NULL)
+ fclose(GC_stderr);
+
+ // generate a time stamped report name.
+ time_t timer;
+ time(&timer);
+ tm* now = localtime(&timer);
+
+ char reportName[256];
+ sprintf(reportName, "Leaks%02d%02d%02d",
+ now->tm_hour, now->tm_min, now->tm_sec);
+ GC_stderr = fopen(reportName, "w");
+
+ return NS_OK;
+}
+
+static FILE* openTraceFile()
+{
+ // generate a time stamped report name.
+ time_t timer;
+ time(&timer);
+ tm* now = localtime(&timer);
+
+ char reportName[256];
+ sprintf(reportName, "Trace%02d%02d%02d",
+ now->tm_hour, now->tm_min, now->tm_sec);
+ return fopen(reportName, "w");
+}
+
+class nsLeakDetector : public nsILeakDetector {
+public:
+ nsLeakDetector();
+
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSILEAKDETECTOR
+private:
+ ~nsLeakDetector() {}
+};
+
+NS_IMPL_ISUPPORTS1(nsLeakDetector, nsILeakDetector)
+
+nsLeakDetector::nsLeakDetector() {
+ }
+
+NS_METHOD nsLeakDetector::DumpLeaks()
+{
+ GC_gcollect();
+
+ return nextLeakFile();
+}
+
+NS_METHOD nsLeakDetector::TraceObject(nsISupports* object, PRBool verbose)
+{
+ FILE* trace = openTraceFile();
+ if (trace != NULL) {
+ FILE* old_stderr = GC_stderr;
+ GC_stderr = trace;
+ GC_trace_object(object, (verbose ? 1 : 0));
+ GC_stderr = old_stderr;
+ fclose(trace);
+ return NS_OK;
+ }
+ return NS_ERROR_FAILURE;
+}
+
+NS_METHOD nsLeakDetector::TraceCollection(nsICollection* objects, PRBool verbose)
+{
+ PRUint32 count;
+ if (NS_FAILED(objects->Count(&count)))
+ return NS_ERROR_FAILURE;
+
+ nsCOMPtr<nsISupports>* elements = new nsCOMPtr<nsISupports>[count];
+ if (elements == nsnull)
+ return NS_ERROR_OUT_OF_MEMORY;
+
+ for (PRUint32 i = 0; i < count; ++i)
+ objects->GetElementAt(i, getter_AddRefs(elements[i]));
+
+ nsresult rv = NS_ERROR_FAILURE;
+ FILE* trace = openTraceFile();
+ if (trace != NULL) {
+ FILE* old_stderr = GC_stderr;
+ GC_stderr = trace;
+ GC_trace_object(elements, (verbose ? 1 : 0));
+ GC_stderr = old_stderr;
+ fclose(trace);
+ rv = NS_OK;
+ }
+
+ delete[] elements;
+
+ return rv;
+}
+
+NS_METHOD nsLeakDetector::MarkObject(nsISupports* object, PRBool marked)
+{
+ GC_mark_object(object, (marked ? 1 : 0));
+ return NS_OK;
+}
+
+NS_METHOD nsLeakDetector::GetServices(nsISupports* *result)
+{
+ return NS_GetServiceManager((nsIServiceManager**)result);
+}
+
+#define NS_CLEAKDETECTOR_CID_STR "bb1ba360-1dd1-11b2-b30e-aa2314429f54"
+#define NS_CLEAKDETECTOR_CID {0xbb1ba360, 0x1dd1, 0x11b2, {0xb3, 0x0e, 0xaa, 0x23, 0x14, 0x42, 0x9f, 0x54}}
+#define NS_CLEAKDETECTOR_CONTRACTID "@mozilla.org/xpcom/leakdetector;1"
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsLeakDetector)
+
+static NS_DEFINE_CID(kCLeakDetectorCID, NS_CLEAKDETECTOR_CID);
+
+nsresult NS_InitLeakDetector()
+{
+ nsresult rv;
+
+ // open the first leak file.
+ rv = nextLeakFile();
+ if (NS_FAILED(rv))
+ return rv;
+
+ static const nsModuleComponentInfo info = {
+ "Leak Detector", kCLeakDetectorCID, NS_CLEAKDETECTOR_CONTRACTID, nsLeakDetectorConstructor
+ };
+
+ // create a generic factory for the leak detector.
+ nsCOMPtr<nsIGenericFactory> factory;
+ rv = NS_NewGenericFactory(getter_AddRefs(factory), &info);
+ if (NS_FAILED(rv))
+ return rv;
+
+ // register this factory with the component manager.
+ return nsComponentManager::RegisterFactory(info.mCID, info.mDescription, info.mContractID, factory, PR_TRUE);
+}
+
+#ifdef XP_MAC
+#define SHUTDOWN_LEAKS_EARLY
+#undef SHUTDOWN_LEAKS_MEDIUM
+#undef SHUTDOWN_LEAKS_LATE
+#else
+#undef SHUTDOWN_LEAKS_EARLY
+#undef SHUTDOWN_LEAKS_MEDIUM
+#define SHUTDOWN_LEAKS_LATE
+#endif
+
+class LeakDetectorFinalizer
+{
+public:
+ ~LeakDetectorFinalizer();
+};
+
+#ifdef SHUTDOWN_LEAKS_LATE
+// do shutdown leaks when XPCOM library is unloaded
+LeakDetectorFinalizer gLeakDetectorFinalizer;
+#endif
+
+LeakDetectorFinalizer::~LeakDetectorFinalizer()
+{
+ GC_gcollect();
+
+#if 0
+ nextLeakFile();
+ if (GC_stdout != NULL) {
+ fprintf(GC_stdout, "ShutDown Leaks\n");
+ GC_clear_roots();
+ GC_gcollect();
+ }
+#endif
+}
+
+nsresult NS_ShutdownLeakDetector()
+{
+#if defined(SHUTDOWN_LEAKS_MEDIUM)
+ // Make this the first atexit() called so it's before the atexit() crashes
+ // see http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=23552
+ static LeakDetectorFinalizer trick;
+#elif defined(SHUTDOWN_LEAKS_EARLY)
+ // do shutdown leaks now
+ LeakDetectorFinalizer trick;
+#endif
+ return NS_OK;
+}
+
+#endif /* defined(GC_LEAK_DETECTOR) */