| // Copyright (c) 2014, StrongLoop Inc. |
| // |
| // Permission to use, copy, modify, and/or distribute this software for any |
| // purpose with or without fee is hereby granted, provided that the above |
| // copyright notice and this permission notice appear in all copies. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| // WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| // MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| // ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| // WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| // ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| // OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| |
| 'use strict'; |
| |
| const v8binding = process.binding('v8'); |
| const smalloc = require('internal/smalloc'); |
| |
| const heapStatisticsBuffer = |
| smalloc.alloc(v8binding.kHeapStatisticsBufferLength, |
| v8binding.kHeapStatisticsBufferType); |
| |
| const kTotalHeapSizeIndex = v8binding.kTotalHeapSizeIndex; |
| const kTotalHeapSizeExecutableIndex = v8binding.kTotalHeapSizeExecutableIndex; |
| const kTotalPhysicalSizeIndex = v8binding.kTotalPhysicalSizeIndex; |
| const kUsedHeapSizeIndex = v8binding.kUsedHeapSizeIndex; |
| const kHeapSizeLimitIndex = v8binding.kHeapSizeLimitIndex; |
| |
| exports.getHeapStatistics = function() { |
| var buffer = heapStatisticsBuffer; |
| |
| v8binding.getHeapStatistics(buffer); |
| |
| return { |
| 'total_heap_size': buffer[kTotalHeapSizeIndex], |
| 'total_heap_size_executable': buffer[kTotalHeapSizeExecutableIndex], |
| 'total_physical_size': buffer[kTotalPhysicalSizeIndex], |
| 'used_heap_size': buffer[kUsedHeapSizeIndex], |
| 'heap_size_limit': buffer[kHeapSizeLimitIndex] |
| }; |
| }; |
| |
| exports.setFlagsFromString = v8binding.setFlagsFromString; |