| /* |
| * Copyright 2010 The Android Open Source Project |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "MemoryUsage.h" |
| |
| #include <v8.h> |
| |
| // Workaround an issue where malloc_footprint is in malloc.h |
| // but is not actually implemented. |
| // See: http://code.google.com/p/android/issues/detail?id=34897 |
| extern "C" size_t dlmalloc_footprint(void); |
| |
| using namespace WTF; |
| |
| int MemoryUsage::memoryUsageMb(bool /* forceFresh */) |
| { |
| size_t footprint = dlmalloc_footprint() >> 20; |
| v8::HeapStatistics stat; |
| v8::V8::GetHeapStatistics(&stat); |
| unsigned v8Usage = stat.total_heap_size() >> 20; |
| return footprint + v8Usage; |
| } |
| |
| int MemoryUsage::m_lowMemoryUsageMb = 0; |
| int MemoryUsage::m_highMemoryUsageMb = 0; |
| int MemoryUsage::m_highUsageDeltaMb = 0; |