HCoop / hcoop / debian / mlton.git / blame
| Commit | Line | Data |
|---|---|---|
| 7f918cf1 CE |
1 | /* Copyright (C) 2012 Matthew Fluet. |
| 2 | * Copyright (C) 1999-2008 Henry Cejtin, Matthew Fluet, Suresh | |
| 3 | * Jagannathan, and Stephen Weeks. | |
| 4 | * Copyright (C) 1997-2000 NEC Research Institute. | |
| 5 | * | |
| 6 | * MLton is released under a BSD-style license. | |
| 7 | * See the file MLton-LICENSE for details. | |
| 8 | */ | |
| 9 | ||
| 10 | #if (defined (MLTON_GC_INTERNAL_TYPES)) | |
| 11 | ||
| 12 | /* | |
| 13 | * All ML objects (including ML execution stacks) are allocated in a | |
| 14 | * contiguous heap. The heap has the following general layout: | |
| 15 | * | |
| 16 | * ------------------------------------------------------------------------- | |
| 17 | * | old generation | | nursery | cardMap | crossMap | | |
| 18 | * ------------------------------------------------------------------------- | |
| 19 | * |------oldGenSize------| | |
| 20 | * |-----------------------size-----------------------| | |
| 21 | * ^ ^ | |
| 22 | * start nursery | |
| 23 | * |------------------------------withMapsSize-----------------------------| | |
| 24 | */ | |
| 25 | ||
| 26 | typedef struct GC_heap { | |
| 27 | pointer nursery; /* start of nursery */ | |
| 28 | size_t oldGenSize; /* size of old generation */ | |
| 29 | size_t size; /* size of heap */ | |
| 30 | pointer start; /* start of heap (and old generation) */ | |
| 31 | size_t withMapsSize; /* size of heap with card/cross maps */ | |
| 32 | } *GC_heap; | |
| 33 | ||
| 34 | #define GC_HEAP_LIMIT_SLOP 512 | |
| 35 | ||
| 36 | #endif /* (defined (MLTON_GC_INTERNAL_TYPES)) */ | |
| 37 | ||
| 38 | #if (defined (MLTON_GC_INTERNAL_FUNCS)) | |
| 39 | ||
| 40 | static inline bool isPointerInOldGen (GC_state s, pointer p); | |
| 41 | static inline bool isPointerInNursery (GC_state s, pointer p); | |
| 42 | #if ASSERT | |
| 43 | static inline bool isObjptrInOldGen (GC_state s, objptr op); | |
| 44 | #endif | |
| 45 | static inline bool isObjptrInNursery (GC_state s, objptr op); | |
| 46 | #if ASSERT | |
| 47 | static inline bool isObjptrInFromSpace (GC_state s, objptr op); | |
| 48 | #endif | |
| 49 | static inline bool hasHeapBytesFree (GC_state s, size_t oldGen, size_t nursery); | |
| 50 | static inline bool isHeapInit (GC_heap h); | |
| 51 | ||
| 52 | static void displayHeap (GC_state s, GC_heap heap, FILE *stream); | |
| 53 | ||
| 54 | static inline void initHeap (GC_state s, GC_heap h); | |
| 55 | static inline size_t sizeofHeapDesired (GC_state s, size_t live, size_t currentSize); | |
| 56 | ||
| 57 | static inline void releaseHeap (GC_state s, GC_heap h); | |
| 58 | static void shrinkHeap (GC_state s, GC_heap h, size_t keepSize); | |
| 59 | static bool createHeap (GC_state s, GC_heap h, size_t desiredSize, size_t minSize); | |
| 60 | static bool createHeapSecondary (GC_state s, size_t desiredSize); | |
| 61 | static bool remapHeap (GC_state s, GC_heap h, size_t desiredSize, size_t minSize); | |
| 62 | static void growHeap (GC_state s, size_t desiredSize, size_t minSize); | |
| 63 | static void resizeHeap (GC_state s, size_t minSize); | |
| 64 | static void resizeHeapSecondary (GC_state s); | |
| 65 | ||
| 66 | #endif /* (defined (MLTON_GC_INTERNAL_FUNCS)) */ |