46 const size_t _max_reserve; 47 ZPreMappedMemory _pre_mapped; 48 size_t _used_high; 49 size_t _used_low; 50 size_t _used; 51 size_t _allocated; 52 ssize_t _reclaimed; 53 ZList<ZPageAllocRequest> _queue; 54 ZList<ZPage> _detached; 55 56 static ZPage* const gc_marker; 57 58 void increase_used(size_t size, bool relocation); 59 void decrease_used(size_t size, bool reclaimed); 60 61 size_t max_available(bool no_reserve) const; 62 size_t try_ensure_unused(size_t size, bool no_reserve); 63 size_t try_ensure_unused_for_pre_mapped(size_t size); 64 65 ZPage* create_page(uint8_t type, size_t size); 66 void map_page(ZPage* page); 67 void detach_page(ZPage* page); 68 void flush_pre_mapped(); 69 void flush_cache(size_t size); 70 71 void check_out_of_memory_during_initialization(); 72 73 ZPage* alloc_page_common_inner(uint8_t type, size_t size, ZAllocationFlags flags); 74 ZPage* alloc_page_common(uint8_t type, size_t size, ZAllocationFlags flags); 75 ZPage* alloc_page_blocking(uint8_t type, size_t size, ZAllocationFlags flags); 76 ZPage* alloc_page_nonblocking(uint8_t type, size_t size, ZAllocationFlags flags); 77 78 void satisfy_alloc_queue(); 79 80 void detach_memory(const ZVirtualMemory& vmem, ZPhysicalMemory& pmem); 81 82 public: 83 ZPageAllocator(size_t min_capacity, size_t max_capacity, size_t max_reserve); 84 85 bool is_initialized() const; 86 87 size_t max_capacity() const; 88 size_t current_max_capacity() const; 89 size_t capacity() const; 90 size_t max_reserve() const; 91 size_t used_high() const; 92 size_t used_low() const; 93 size_t used() const; 94 size_t allocated() const; 95 size_t reclaimed() const; 96 97 void reset_statistics(); 98 99 ZPage* alloc_page(uint8_t type, size_t size, ZAllocationFlags flags); 100 void flip_page(ZPage* page); 101 void free_page(ZPage* page, bool reclaimed); 102 void destroy_page(ZPage* page); 103 104 void flush_detached_pages(ZList<ZPage>* list); 105 106 void flip_pre_mapped(); 107 108 bool is_alloc_stalled() const; 109 void check_out_of_memory(); 110 }; 111 112 #endif // SHARE_GC_Z_ZPAGEALLOCATOR_HPP | 46 const size_t _max_reserve; 47 ZPreMappedMemory _pre_mapped; 48 size_t _used_high; 49 size_t _used_low; 50 size_t _used; 51 size_t _allocated; 52 ssize_t _reclaimed; 53 ZList<ZPageAllocRequest> _queue; 54 ZList<ZPage> _detached; 55 56 static ZPage* const gc_marker; 57 58 void increase_used(size_t size, bool relocation); 59 void decrease_used(size_t size, bool reclaimed); 60 61 size_t max_available(bool no_reserve) const; 62 size_t try_ensure_unused(size_t size, bool no_reserve); 63 size_t try_ensure_unused_for_pre_mapped(size_t size); 64 65 ZPage* create_page(uint8_t type, size_t size); 66 void detach_page(ZPage* page); 67 void flush_pre_mapped(); 68 void flush_cache(size_t size); 69 70 void check_out_of_memory_during_initialization(); 71 72 ZPage* alloc_page_common_inner(uint8_t type, size_t size, ZAllocationFlags flags); 73 ZPage* alloc_page_common(uint8_t type, size_t size, ZAllocationFlags flags); 74 ZPage* alloc_page_blocking(uint8_t type, size_t size, ZAllocationFlags flags); 75 ZPage* alloc_page_nonblocking(uint8_t type, size_t size, ZAllocationFlags flags); 76 77 void satisfy_alloc_queue(); 78 79 void detach_memory(const ZVirtualMemory& vmem, ZPhysicalMemory& pmem); 80 81 public: 82 ZPageAllocator(size_t min_capacity, size_t max_capacity, size_t max_reserve); 83 84 bool is_initialized() const; 85 86 size_t max_capacity() const; 87 size_t current_max_capacity() const; 88 size_t capacity() const; 89 size_t max_reserve() const; 90 size_t used_high() const; 91 size_t used_low() const; 92 size_t used() const; 93 size_t allocated() const; 94 size_t reclaimed() const; 95 96 void reset_statistics(); 97 98 ZPage* alloc_page(uint8_t type, size_t size, ZAllocationFlags flags); 99 void free_page(ZPage* page, bool reclaimed); 100 void destroy_page(ZPage* page); 101 102 void map_page(ZPage* page); 103 void unmap_all_pages(); 104 105 void flush_detached_pages(ZList<ZPage>* list); 106 107 bool is_alloc_stalled() const; 108 void check_out_of_memory(); 109 }; 110 111 #endif // SHARE_GC_Z_ZPAGEALLOCATOR_HPP |