34 protected:
35 char* _base;
36 size_t _size;
37 size_t _noaccess_prefix;
38 size_t _alignment;
39 bool _special;
40 private:
41 bool _executable;
42
43 // ReservedSpace
44 ReservedSpace(char* base, size_t size, size_t alignment, bool special,
45 bool executable);
46 protected:
47 void initialize(size_t size, size_t alignment, bool large,
48 char* requested_address,
49 bool executable);
50
51 public:
52 // Constructor
53 ReservedSpace();
54 // Initialize the reserved space with the given size. If prefer_large_pages is
55 // set, if the given size warrants use of large pages, try to force them by
56 // passing an alignment restriction further down. This may waste some space
57 // if the given size is not aligned, as the reservation will be aligned up
58 // to large page alignment.
59 ReservedSpace(size_t size, bool prefer_large_pages = false);
60 ReservedSpace(size_t size, size_t alignment, bool large,
61 char* requested_address = NULL);
62 ReservedSpace(size_t size, size_t alignment, bool large, bool executable);
63
64 // Accessors
65 char* base() const { return _base; }
66 size_t size() const { return _size; }
67 size_t alignment() const { return _alignment; }
68 bool special() const { return _special; }
69 bool executable() const { return _executable; }
70 size_t noaccess_prefix() const { return _noaccess_prefix; }
71 bool is_reserved() const { return _base != NULL; }
72 void release();
73
74 // Splitting
75 ReservedSpace first_part(size_t partition_size, size_t alignment,
76 bool split = false, bool realloc = true);
77 ReservedSpace last_part (size_t partition_size, size_t alignment);
78
79 // These simply call the above using the default alignment.
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34 protected:
35 char* _base;
36 size_t _size;
37 size_t _noaccess_prefix;
38 size_t _alignment;
39 bool _special;
40 private:
41 bool _executable;
42
43 // ReservedSpace
44 ReservedSpace(char* base, size_t size, size_t alignment, bool special,
45 bool executable);
46 protected:
47 void initialize(size_t size, size_t alignment, bool large,
48 char* requested_address,
49 bool executable);
50
51 public:
52 // Constructor
53 ReservedSpace();
54 // Initialize the reserved space with the given size. If preferred_page_size
55 // is set, use this as minimum page size/alignment. This may waste some space
56 // if the given size is not aligned to that value, as the reservation will be
57 // aligned up to the final alignment in this case.
58 ReservedSpace(size_t size, size_t preferred_page_size = 0);
59 ReservedSpace(size_t size, size_t alignment, bool large,
60 char* requested_address = NULL);
61 ReservedSpace(size_t size, size_t alignment, bool large, bool executable);
62
63 // Accessors
64 char* base() const { return _base; }
65 size_t size() const { return _size; }
66 size_t alignment() const { return _alignment; }
67 bool special() const { return _special; }
68 bool executable() const { return _executable; }
69 size_t noaccess_prefix() const { return _noaccess_prefix; }
70 bool is_reserved() const { return _base != NULL; }
71 void release();
72
73 // Splitting
74 ReservedSpace first_part(size_t partition_size, size_t alignment,
75 bool split = false, bool realloc = true);
76 ReservedSpace last_part (size_t partition_size, size_t alignment);
77
78 // These simply call the above using the default alignment.
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