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106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications, Inc. Portions created by Netscape are
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* Copyright (C) 1999, Mozilla. All Rights Reserved.
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*
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* Contributor(s):
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* Patrick Beard <beard@netscape.com>
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*/
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/*
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nsGarbageCollector.c
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*/
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#ifdef GC_LEAK_DETECTOR
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#include "generic_threads.h"
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#include "pprthred.h"
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extern FILE *GC_stdout, *GC_stderr;
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extern void NSInitGarbageCollector();
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extern void NSShutdownGarbageCollector();
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extern void GC_gcollect(void);
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extern void GC_clear_roots(void);
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static PRStatus PR_CALLBACK scanner(PRThread* t, void** baseAddr, PRUword count, void* closure)
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{
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char* begin = (char*)baseAddr;
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char* end = (char*)(baseAddr + count);
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GC_mark_range_proc marker = (GC_mark_range_proc) closure;
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marker(begin, end);
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return PR_SUCCESS;
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}
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static void mark_all_stacks(GC_mark_range_proc marker)
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{
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/* PR_ThreadScanStackPointers(PR_GetCurrentThread(), &scanner, marker); */
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PR_ScanStackPointers(&scanner, marker);
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}
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static void locker(void* mutex)
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{
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PR_Lock(mutex);
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}
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static void unlocker(void* mutex)
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{
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PR_Unlock(mutex);
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}
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static void stopper(void* unused)
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{
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PR_SuspendAll();
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}
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static void starter(void* unused)
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{
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PR_ResumeAll();
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}
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void NSInitGarbageCollector()
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{
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PRLock* mutex;
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/* redirect GC's stderr. */
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GC_stderr = fopen("RuntimeLeaks", "w");
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mutex = PR_NewLock();
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if (mutex != NULL) {
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GC_generic_init_threads(&mark_all_stacks, mutex,
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&locker, &unlocker,
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&stopper, &starter);
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}
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}
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void NSShutdownGarbageCollector()
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{
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/* Run a collection to get unreferenced leaks. */
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GC_gcollect();
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#if 0
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fclose(GC_stderr);
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GC_stderr = fopen("ShutdownLeaks", "w");
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/* Try to show leaks in current roots: */
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fprintf(GC_stderr, "Shutdown Leaks:\n");
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GC_clear_roots();
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GC_gcollect();
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#endif
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}
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#endif /* GC_LEAK_DETECTOR */
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