diff options
Diffstat (limited to 'src/libs/xpcom18a4/nsprpub/pr/src/memory/prgcleak.c')
-rw-r--r-- | src/libs/xpcom18a4/nsprpub/pr/src/memory/prgcleak.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/nsprpub/pr/src/memory/prgcleak.c b/src/libs/xpcom18a4/nsprpub/pr/src/memory/prgcleak.c new file mode 100644 index 00000000..414b3851 --- /dev/null +++ b/src/libs/xpcom18a4/nsprpub/pr/src/memory/prgcleak.c @@ -0,0 +1,122 @@ +/* -*- Mode: C++; tab-width: 4; 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 Netscape Portable Runtime (NSPR). + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1999-2000 + * 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 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 ***** */ + +/* + * prgcleak.c + */ + +#ifdef GC_LEAK_DETECTOR + +/* for FILE */ +#include <stdio.h> + +/* NSPR stuff */ +#include "generic_threads.h" +#include "primpl.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) +{ + if (count) { + 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_ScanStackPointers(&scanner, (void *)marker); +} + +#if defined(_PR_PTHREADS) +#define _PR_MD_CURRENT_CPU() 1 +#endif + +static void locker(void* mutex) +{ + if (_PR_MD_CURRENT_CPU()) + PR_EnterMonitor(mutex); +} + +static void unlocker(void* mutex) +{ + if (_PR_MD_CURRENT_CPU()) + PR_ExitMonitor(mutex); +} + +static void stopper(void* unused) +{ + if (_PR_MD_CURRENT_CPU()) + PR_SuspendAll(); +} + +static void starter(void* unused) +{ + if (_PR_MD_CURRENT_CPU()) + PR_ResumeAll(); +} + +void _PR_InitGarbageCollector() +{ + void* mutex; + + /* redirect GC's stderr to catch startup leaks. */ + GC_stderr = fopen("StartupLeaks", "w"); + + mutex = PR_NewMonitor(); + PR_ASSERT(mutex != NULL); + + GC_generic_init_threads(&mark_all_stacks, mutex, + &locker, &unlocker, + &stopper, &starter); +} + +void _PR_ShutdownGarbageCollector() +{ + /* do anything you need to shut down the collector. */ +} + +#endif /* GC_LEAK_DETECTOR */ |