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| 9 | |
9 | |
| 10 | #include <cstddef> |
10 | #include <cstddef> |
| 11 | |
11 | |
| 12 | #include <glib.h> |
12 | #include <glib.h> |
| 13 | |
13 | |
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14 | // use a gcc extension for auto declarations until ISO C++ sanctifies them |
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15 | #define AUTODECL(var,expr) typeof(expr) var = (expr) |
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16 | |
| 14 | // makes dynamically allocated objects zero-initialised |
17 | // makes dynamically allocated objects zero-initialised |
| 15 | struct zero_initialised |
18 | struct zero_initialised |
| 16 | { |
19 | { |
| 17 | void *operator new (size_t s, void *p) |
20 | void *operator new (size_t s, void *p) |
| 18 | { |
21 | { |
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| 39 | { |
42 | { |
| 40 | g_slice_free1 (s, p); |
43 | g_slice_free1 (s, p); |
| 41 | } |
44 | } |
| 42 | }; |
45 | }; |
| 43 | |
46 | |
| 44 | void throw_bad_alloc () throw (std::bad_alloc); |
47 | // strictly the same as g_slice_alloc, but never returns 0 |
| 45 | |
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| 46 | void *alloc (int s) throw (std::bad_alloc); |
48 | void *salloc (int size) throw (std::bad_alloc); |
| 47 | void dealloc (void *p, int s) throw (); |
49 | // also copies src into the new area, like "memdup" |
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50 | void *salloc (int size, void *src) throw (std::bad_alloc); |
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51 | // for symmetry |
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52 | inline void sfree (void *ptr, int size) throw () |
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53 | { |
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54 | g_slice_free1 (size, ptr); |
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55 | } |
| 48 | |
56 | |
| 49 | // a STL-compatible allocator that uses g_slice |
57 | // a STL-compatible allocator that uses g_slice |
| 50 | // boy, this is verbose |
58 | // boy, this is verbose |
| 51 | template<typename Tp> |
59 | template<typename Tp> |
| 52 | struct slice_allocator |
60 | struct slice_allocator |
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| 75 | pointer address (reference x) const { return &x; } |
83 | pointer address (reference x) const { return &x; } |
| 76 | const_pointer address (const_reference x) const { return &x; } |
84 | const_pointer address (const_reference x) const { return &x; } |
| 77 | |
85 | |
| 78 | pointer allocate (size_type n, const_pointer = 0) |
86 | pointer allocate (size_type n, const_pointer = 0) |
| 79 | { |
87 | { |
| 80 | return static_cast<pointer>(alloc (n * sizeof (Tp))); |
88 | return static_cast<pointer>(salloc (n * sizeof (Tp))); |
| 81 | } |
89 | } |
| 82 | |
90 | |
| 83 | void deallocate (pointer p, size_type n) |
91 | void deallocate (pointer p, size_type n) |
| 84 | { |
92 | { |
| 85 | dealloc (static_cast<void *>(p), n); |
93 | sfree (static_cast<void *>(p), n * sizeof (Tp)); |
| 86 | } |
94 | } |
| 87 | |
95 | |
| 88 | size_type max_size ()const throw () |
96 | size_type max_size ()const throw () |
| 89 | { |
97 | { |
| 90 | return size_t (-1) / sizeof (Tp); |
98 | return size_t (-1) / sizeof (Tp); |
| … | |
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| 101 | } |
109 | } |
| 102 | }; |
110 | }; |
| 103 | |
111 | |
| 104 | struct refcounted |
112 | struct refcounted |
| 105 | { |
113 | { |
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114 | refcounted () : refcnt (0) { } |
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115 | // virtual ~refcounted (); |
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116 | void refcnt_inc () { ++refcnt; } |
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117 | void refcnt_dec () { --refcnt; } |
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118 | bool dead () { return refcnt == 0; } |
| 106 | mutable int refcnt; |
119 | mutable int refcnt; |
| 107 | refcounted () : refcnt (0) { } |
120 | #if 0 |
| 108 | void refcnt_inc () { ++refcnt; } |
121 | private: |
| 109 | void refcnt_dec () { --refcnt; |
122 | static refcounted *rc_first; |
| 110 | if (refcnt < 0)abort();}//D |
123 | refcounted *rc_next; |
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124 | #endif |
| 111 | }; |
125 | }; |
| 112 | |
126 | |
| 113 | template<class T> |
127 | template<class T> |
| 114 | struct refptr |
128 | struct refptr |
| 115 | { |
129 | { |
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| 210 | inline void assign (char (&dst)[N], const char *src) |
224 | inline void assign (char (&dst)[N], const char *src) |
| 211 | { |
225 | { |
| 212 | assign ((char *)&dst, src, N); |
226 | assign ((char *)&dst, src, N); |
| 213 | } |
227 | } |
| 214 | |
228 | |
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229 | typedef double tstamp; |
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230 | |
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231 | // return current time as timestampe |
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232 | tstamp now (); |
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233 | |
| 215 | #endif |
234 | #endif |
| 216 | |
235 | |
