diff options
Diffstat (limited to 'pr/src/memory/prgcleak.c')
-rw-r--r-- | pr/src/memory/prgcleak.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/pr/src/memory/prgcleak.c b/pr/src/memory/prgcleak.c new file mode 100644 index 00000000..4006ad71 --- /dev/null +++ b/pr/src/memory/prgcleak.c @@ -0,0 +1,105 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* + * The contents of this file are subject to the Netscape Public License + * Version 1.1 (the "NPL"); you may not use this file except in + * compliance with the NPL. You may obtain a copy of the NPL at + * http://www.mozilla.org/NPL/ + * + * Software distributed under the NPL is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL + * for the specific language governing rights and limitations under the + * NPL. + * + * The Initial Developer of this code under the NPL is Netscape + * Communications Corporation. Portions created by Netscape are + * Copyright (C) 1999 Netscape Communications Corporation. All Rights + * Reserved. + * + * Contributor(s): + * Patrick Beard <beard@netscape.com> + */ + +/* + * 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 */ |