| // Copyright 2010 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package runtime |
| |
| const ( |
| mHeapMap_Level1Bits = 18 |
| mHeapMap_Level2Bits = 18 |
| mHeapMap_Level3Bits = 16 |
| mHeapMap_TotalBits = mHeapMap_Level1Bits + mHeapMap_Level2Bits + mHeapMap_Level3Bits |
| |
| mHeapMap_Level1Mask = (1 << mHeapMap_Level1Bits) - 1 |
| mHeapMap_Level2Mask = (1 << mHeapMap_Level2Bits) - 1 |
| mHeapMap_Level3Mask = (1 << mHeapMap_Level3Bits) - 1 |
| ) |
| |
| type mHeapMap struct { |
| allocator func(uintptr) |
| p [1 << mHeapMap_Level1Bits]*mHeapMapNode2 |
| } |
| |
| |
| type mHeapMapNode2 struct { |
| p [1 << mHeapMap_Level2Bits]*mHeapMapNode3 |
| } |
| |
| |
| type mHeapMapNode3 struct { |
| s [1 << mHeapMap_Level3Bits]*mSpan |
| } |
