1 files changed, 127 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/base/nsGarbageCollector.c b/src/libs/xpcom18a4/xpcom/base/nsGarbageCollector.c
new file mode 100644
index 00000000..b0447598
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/base/nsGarbageCollector.c
@@ -0,0 +1,127 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * ***** 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 Beard <beard@netscape.com>
+ *
+ * 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 ***** */
+
+/*
+	nsGarbageCollector.c
+ */
+
+#ifdef GC_LEAK_DETECTOR
+
+/* for FILE */
+#include <stdio.h>
+
+/* NSPR stuff */
+#include "generic_threads.h"
+#include "prthread.h"
+#include "prlock.h"
+
+/* Linux/Win32 export private NSPR files to include/private */
+#ifdef XP_MAC
+#include "pprthred.h"
+#else
+#include "private/pprthred.h"
+#endif
+
+#include "nsLeakDetector.h"
+
+extern FILE *GC_stdout, *GC_stderr;
+
+extern void GC_gcollect(void);
+extern void GC_clear_roots(void);
+
+static PRStatus PR_CALLBACK scanner(PRThread* t, void** baseAddr, PRUword count, void* closure)
+{
+	char* begin = (char*)baseAddr;
+	char* end = (char*)(baseAddr + count);
+	GC_mark_range_proc marker = (GC_mark_range_proc) closure;
+	marker(begin, end);
+	return PR_SUCCESS;
+}
+
+static void mark_all_stacks(GC_mark_range_proc marker)
+{
+	/* PR_ThreadScanStackPointers(PR_GetCurrentThread(), &scanner, marker); */
+	PR_ScanStackPointers(&scanner, (void *)marker);
+}
+
+static void locker(void* mutex)
+{
+	PR_Lock(mutex);
+}
+
+static void unlocker(void* mutex)
+{
+	PR_Unlock(mutex);
+}
+
+static void stopper(void* unused)
+{
+	PR_SuspendAll();
+}
+
+static void starter(void* unused)
+{
+	PR_ResumeAll();
+}
+
+nsresult NS_InitGarbageCollector()
+{
+	PRLock* mutex;
+	
+	/* redirect GC's stderr to catch startup leaks. */
+	GC_stderr = fopen("StartupLeaks", "w");
+
+	mutex = PR_NewLock();
+	if (mutex == NULL)
+		return NS_ERROR_FAILURE;
+		
+	GC_generic_init_threads(&mark_all_stacks, mutex,
+						 	&locker, &unlocker,
+							&stopper, &starter);
+	
+	return NS_OK;
+}
+
+nsresult NS_ShutdownGarbageCollector()
+{
+	/* do anything you need to shut down the collector. */
+	return NS_OK;
+}
+
+#endif /* GC_LEAK_DETECTOR */