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80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
/*
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* Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "memory/allocation.inline.hpp"
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#include "memory/resourceArea.inline.hpp"
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#include "nmt/memTracker.hpp"
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#include "runtime/atomic.hpp"
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#include "runtime/javaThread.hpp"
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#include "utilities/vmError.hpp"
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#ifdef ASSERT
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ResourceMark::ResourceMark(ResourceArea* area, Thread* thread) :
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_impl(area),
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_thread(thread),
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_previous_resource_mark(nullptr)
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{
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if (_thread != nullptr) {
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assert(_thread == Thread::current(), "not the current thread");
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_previous_resource_mark = _thread->current_resource_mark();
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_thread->set_current_resource_mark(this);
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}
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}
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void ResourceArea::verify_has_resource_mark() {
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if (_nesting <= 0 && !VMError::is_error_reported()) {
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// Only report the first occurrence of an allocating thread that
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// is missing a ResourceMark, to avoid possible recursive errors
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// in error handling.
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static volatile bool reported = false;
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if (!Atomic::load(&reported)) {
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if (!Atomic::cmpxchg(&reported, false, true)) {
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fatal("memory leak: allocating without ResourceMark");
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}
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}
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}
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}
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#endif // ASSERT
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//------------------------------ResourceMark-----------------------------------
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// The following routines are declared in allocation.hpp and used everywhere:
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// Allocation in thread-local resource area
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extern char* resource_allocate_bytes(size_t size, AllocFailType alloc_failmode) {
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return Thread::current()->resource_area()->allocate_bytes(size, alloc_failmode);
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}
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extern char* resource_allocate_bytes(Thread* thread, size_t size, AllocFailType alloc_failmode) {
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return thread->resource_area()->allocate_bytes(size, alloc_failmode);
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}
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extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size, AllocFailType alloc_failmode){
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return (char*)Thread::current()->resource_area()->Arealloc(old, old_size, new_size, alloc_failmode);
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}
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extern void resource_free_bytes( Thread* thread, char *old, size_t size ) {
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thread->resource_area()->Afree(old, size);
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}
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