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172 | absdir (int d) |
172 | absdir (int d) |
173 | { |
173 | { |
174 | return ((d - 1) & 7) + 1; |
174 | return ((d - 1) & 7) + 1; |
175 | } |
175 | } |
176 | |
176 | |
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177 | extern size_t slice_alloc; // statistics |
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178 | |
177 | // makes dynamically allocated objects zero-initialised |
179 | // makes dynamically allocated objects zero-initialised |
178 | struct zero_initialised |
180 | struct zero_initialised |
179 | { |
181 | { |
180 | void *operator new (size_t s, void *p) |
182 | void *operator new (size_t s, void *p) |
181 | { |
183 | { |
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183 | return p; |
185 | return p; |
184 | } |
186 | } |
185 | |
187 | |
186 | void *operator new (size_t s) |
188 | void *operator new (size_t s) |
187 | { |
189 | { |
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190 | slice_alloc += s; |
188 | return g_slice_alloc0 (s); |
191 | return g_slice_alloc0 (s); |
189 | } |
192 | } |
190 | |
193 | |
191 | void *operator new[] (size_t s) |
194 | void *operator new[] (size_t s) |
192 | { |
195 | { |
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196 | slice_alloc += s; |
193 | return g_slice_alloc0 (s); |
197 | return g_slice_alloc0 (s); |
194 | } |
198 | } |
195 | |
199 | |
196 | void operator delete (void *p, size_t s) |
200 | void operator delete (void *p, size_t s) |
197 | { |
201 | { |
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202 | slice_alloc -= s; |
198 | g_slice_free1 (s, p); |
203 | g_slice_free1 (s, p); |
199 | } |
204 | } |
200 | |
205 | |
201 | void operator delete[] (void *p, size_t s) |
206 | void operator delete[] (void *p, size_t s) |
202 | { |
207 | { |
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208 | slice_alloc -= s; |
203 | g_slice_free1 (s, p); |
209 | g_slice_free1 (s, p); |
204 | } |
210 | } |
205 | }; |
211 | }; |
206 | |
212 | |
207 | void *salloc_ (int n) throw (std::bad_alloc); |
213 | void *salloc_ (int n) throw (std::bad_alloc); |
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225 | inline void sfree (T *ptr, int n = 1) throw () |
231 | inline void sfree (T *ptr, int n = 1) throw () |
226 | { |
232 | { |
227 | #ifdef PREFER_MALLOC |
233 | #ifdef PREFER_MALLOC |
228 | free (ptr); |
234 | free (ptr); |
229 | #else |
235 | #else |
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236 | slice_alloc -= n * sizeof (T); |
230 | g_slice_free1 (n * sizeof (T), (void *)ptr); |
237 | g_slice_free1 (n * sizeof (T), (void *)ptr); |
231 | #endif |
238 | #endif |
232 | } |
239 | } |
233 | |
240 | |
234 | // a STL-compatible allocator that uses g_slice |
241 | // a STL-compatible allocator that uses g_slice |
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345 | MTH void refcnt_dec () const { --refcnt; } |
352 | MTH void refcnt_dec () const { --refcnt; } |
346 | |
353 | |
347 | refcnt_base () : refcnt (0) { } |
354 | refcnt_base () : refcnt (0) { } |
348 | }; |
355 | }; |
349 | |
356 | |
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357 | // to avoid branches with more advanced compilers |
350 | extern refcnt_base::refcnt_t refcnt_dummy; |
358 | extern refcnt_base::refcnt_t refcnt_dummy; |
351 | |
359 | |
352 | template<class T> |
360 | template<class T> |
353 | struct refptr |
361 | struct refptr |
354 | { |
362 | { |
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544 | // return current time as timestampe |
552 | // return current time as timestampe |
545 | tstamp now (); |
553 | tstamp now (); |
546 | |
554 | |
547 | int similar_direction (int a, int b); |
555 | int similar_direction (int a, int b); |
548 | |
556 | |
549 | // like printf, but returns a std::string |
557 | // like sprintf, but returns a "static" buffer |
550 | const std::string format (const char *format, ...); |
558 | const char *format (const char *format, ...); |
551 | |
559 | |
552 | #endif |
560 | #endif |
553 | |
561 | |