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/*
* Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "memory/allocation.inline.hpp"
#include "memory/resourceArea.inline.hpp"
#include "runtime/atomic.hpp"
#include "runtime/javaThread.hpp"
#include "services/memTracker.hpp"
#include "utilities/vmError.hpp"
void ResourceArea::bias_to(MEMFLAGS new_flags) {
if (new_flags != _flags) {
size_t size = size_in_bytes();
MemTracker::record_arena_size_change(-ssize_t(size), _flags);
MemTracker::record_arena_free(_flags);
MemTracker::record_new_arena(new_flags);
MemTracker::record_arena_size_change(ssize_t(size), new_flags);
_flags = new_flags;
}
}
#ifdef ASSERT
void ResourceArea::verify_has_resource_mark() {
if (_nesting <= 0 && !VMError::is_error_reported()) {
// Only report the first occurrence of an allocating thread that
// is missing a ResourceMark, to avoid possible recursive errors
// in error handling.
static volatile bool reported = false;
if (!Atomic::load(&reported)) {
if (!Atomic::cmpxchg(&reported, false, true)) {
fatal("memory leak: allocating without ResourceMark");
}
}
}
}
#endif // ASSERT
//------------------------------ResourceMark-----------------------------------
// The following routines are declared in allocation.hpp and used everywhere:
// Allocation in thread-local resource area
extern char* resource_allocate_bytes(size_t size, AllocFailType alloc_failmode) {
return Thread::current()->resource_area()->allocate_bytes(size, alloc_failmode);
}
extern char* resource_allocate_bytes(Thread* thread, size_t size, AllocFailType alloc_failmode) {
return thread->resource_area()->allocate_bytes(size, alloc_failmode);
}
extern char* resource_reallocate_bytes( char *old, size_t old_size, size_t new_size, AllocFailType alloc_failmode){
return (char*)Thread::current()->resource_area()->Arealloc(old, old_size, new_size, alloc_failmode);
}
extern void resource_free_bytes( Thread* thread, char *old, size_t size ) {
thread->resource_area()->Afree(old, size);
}
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