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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
commit | 16f504a9dca3fe3b70568f67b7d41241ae485288 (patch) | |
tree | c60f36ada0496ba928b7161059ba5ab1ab224f9d /src/libs/xpcom18a4/xpcom/base/nsGarbageCollector.c | |
parent | Initial commit. (diff) | |
download | virtualbox-upstream.tar.xz virtualbox-upstream.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/nsGarbageCollector.c')
-rw-r--r-- | src/libs/xpcom18a4/xpcom/base/nsGarbageCollector.c | 127 |
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 */ |