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Revision 1.66 by root, Wed Apr 2 11:13:55 2008 UTC vs.
Revision 1.101 by root, Wed Apr 28 19:49:50 2010 UTC

1/* 1/*
2 * This file is part of Deliantra, the Roguelike Realtime MMORPG. 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team 4 * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * 5 *
6 * Deliantra is free software: you can redistribute it and/or modify 6 * Deliantra is free software: you can redistribute it and/or modify it under
7 * it under the terms of the GNU General Public License as published by 7 * the terms of the Affero GNU General Public License as published by the
8 * the Free Software Foundation, either version 3 of the License, or 8 * Free Software Foundation, either version 3 of the License, or (at your
9 * (at your option) any later version. 9 * option) any later version.
10 * 10 *
11 * This program is distributed in the hope that it will be useful, 11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details. 14 * GNU General Public License for more details.
15 * 15 *
16 * You should have received a copy of the GNU General Public License 16 * You should have received a copy of the Affero GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * and the GNU General Public License along with this program. If not, see
18 * <http://www.gnu.org/licenses/>.
18 * 19 *
19 * The authors can be reached via e-mail to <support@deliantra.net> 20 * The authors can be reached via e-mail to <support@deliantra.net>
20 */ 21 */
21 22
22#ifndef UTIL_H__ 23#ifndef UTIL_H__
23#define UTIL_H__ 24#define UTIL_H__
24 25
25#define DEBUG_SALLOC 0 26#include <compiler.h>
26#define PREFER_MALLOC 0
27 27
28#if __GNUC__ >= 3 28#define DEBUG_POISON 0x00 // poison memory before freeing it if != 0
29# define is_constant(c) __builtin_constant_p (c) 29#define DEBUG_SALLOC 0 // add a debug wrapper around all sallocs
30# define expect(expr,value) __builtin_expect ((expr),(value)) 30#define PREFER_MALLOC 0 // use malloc and not the slice allocator
31# define prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
32#else
33# define is_constant(c) 0
34# define expect(expr,value) (expr)
35# define prefetch(addr,rw,locality)
36#endif
37
38#if __GNUC__ < 4 || (__GNUC__ == 4 || __GNUC_MINOR__ < 4)
39# define decltype(x) typeof(x)
40#endif
41
42// put into ifs if you are very sure that the expression
43// is mostly true or mosty false. note that these return
44// booleans, not the expression.
45#define expect_false(expr) expect ((expr) != 0, 0)
46#define expect_true(expr) expect ((expr) != 0, 1)
47 31
48#include <pthread.h> 32#include <pthread.h>
49 33
50#include <cstddef> 34#include <cstddef>
51#include <cmath> 35#include <cmath>
62# define g_slice_alloc(s) debug_slice_alloc(s) 46# define g_slice_alloc(s) debug_slice_alloc(s)
63# define g_slice_free1(s,p) debug_slice_free1(s,p) 47# define g_slice_free1(s,p) debug_slice_free1(s,p)
64void *g_slice_alloc (unsigned long size); 48void *g_slice_alloc (unsigned long size);
65void *g_slice_alloc0 (unsigned long size); 49void *g_slice_alloc0 (unsigned long size);
66void g_slice_free1 (unsigned long size, void *ptr); 50void g_slice_free1 (unsigned long size, void *ptr);
51#elif PREFER_MALLOC
52# define g_slice_alloc0(s) calloc (1, (s))
53# define g_slice_alloc(s) malloc ((s))
54# define g_slice_free1(s,p) free ((p))
67#endif 55#endif
68 56
69// use C0X decltype for auto declarations until ISO C++ sanctifies them (if ever) 57// use C0X decltype for auto declarations until ISO C++ sanctifies them (if ever)
70#define auto(var,expr) decltype(expr) var = (expr) 58#define auto(var,expr) decltype(expr) var = (expr)
71 59
60// could use the sizeof (arr) /( sizeof (arr [0]) here, but C++ is
61// much more obfuscated... :)
62
63template<typename T, int N>
64inline int array_length (const T (&arr)[N])
65{
66 return N;
67}
68
72// very ugly macro that basicaly declares and initialises a variable 69// very ugly macro that basically declares and initialises a variable
73// that is in scope for the next statement only 70// that is in scope for the next statement only
74// works only for stuff that can be assigned 0 and converts to false 71// works only for stuff that can be assigned 0 and converts to false
75// (note: works great for pointers) 72// (note: works great for pointers)
76// most ugly macro I ever wrote 73// most ugly macro I ever wrote
77#define statementvar(type, name, value) if (type name = 0) { } else if (((name) = (value)), 1) 74#define statementvar(type, name, value) if (type name = 0) { } else if (((name) = (value)), 1)
91// as a is often a constant while b is the variable. it is still a bug, though. 88// as a is often a constant while b is the variable. it is still a bug, though.
92template<typename T, typename U> static inline T min (T a, U b) { return (U)a < b ? (U)a : b; } 89template<typename T, typename U> static inline T min (T a, U b) { return (U)a < b ? (U)a : b; }
93template<typename T, typename U> static inline T max (T a, U b) { return (U)a > b ? (U)a : b; } 90template<typename T, typename U> static inline T max (T a, U b) { return (U)a > b ? (U)a : b; }
94template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? (T)a : v >(T)b ? (T)b : v; } 91template<typename T, typename U, typename V> static inline T clamp (T v, U a, V b) { return v < (T)a ? (T)a : v >(T)b ? (T)b : v; }
95 92
93template<typename T, typename U> static inline void min_it (T &v, U m) { v = min (v, (T)m); }
94template<typename T, typename U> static inline void max_it (T &v, U m) { v = max (v, (T)m); }
95template<typename T, typename U, typename V> static inline void clamp_it (T &v, U a, V b) { v = clamp (v, (T)a, (T)b); }
96
96template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; } 97template<typename T, typename U> static inline void swap (T& a, U& b) { T t=a; a=(T)b; b=(U)t; }
97 98
98template<typename T, typename U, typename V> static inline T min (T a, U b, V c) { return min (a, min (b, c)); } 99template<typename T, typename U, typename V> static inline T min (T a, U b, V c) { return min (a, min (b, c)); }
99template<typename T, typename U, typename V> static inline T max (T a, U b, V c) { return max (a, max (b, c)); } 100template<typename T, typename U, typename V> static inline T max (T a, U b, V c) { return max (a, max (b, c)); }
100 101
102// sign returns -1 or +1
103template<typename T>
104static inline T sign (T v) { return v < 0 ? -1 : +1; }
105// relies on 2c representation
106template<>
107inline sint8 sign (sint8 v) { return 1 - (sint8 (uint8 (v) >> 7) * 2); }
108
109// sign0 returns -1, 0 or +1
110template<typename T>
111static inline T sign0 (T v) { return v ? sign (v) : 0; }
112
113template<typename T, typename U>
114static inline T copysign (T a, U b) { return a > 0 ? b : -b; }
115
116// div* only work correctly for div > 0
117// div, with correct rounding (< 0.5 downwards, >=0.5 upwards)
118template<typename T> static inline T div (T val, T div)
119{
120 return expect_false (val < 0) ? - ((-val + (div - 1) / 2) / div) : (val + div / 2) / div;
121}
122// div, round-up
123template<typename T> static inline T div_ru (T val, T div)
124{
125 return expect_false (val < 0) ? - ((-val ) / div) : (val + div - 1) / div;
126}
127// div, round-down
128template<typename T> static inline T div_rd (T val, T div)
129{
130 return expect_false (val < 0) ? - ((-val + (div - 1) ) / div) : (val ) / div;
131}
132
133// lerp* only work correctly for min_in < max_in
134// Linear intERPolate, scales val from min_in..max_in to min_out..max_out
101template<typename T> 135template<typename T>
102static inline T 136static inline T
103lerp (T val, T min_in, T max_in, T min_out, T max_out) 137lerp (T val, T min_in, T max_in, T min_out, T max_out)
104{ 138{
105 return (val - min_in) * (max_out - min_out) / (max_in - min_in) + min_out; 139 return min_out + div <T> ((val - min_in) * (max_out - min_out), max_in - min_in);
140}
141
142// lerp, round-down
143template<typename T>
144static inline T
145lerp_rd (T val, T min_in, T max_in, T min_out, T max_out)
146{
147 return min_out + div_rd<T> ((val - min_in) * (max_out - min_out), max_in - min_in);
148}
149
150// lerp, round-up
151template<typename T>
152static inline T
153lerp_ru (T val, T min_in, T max_in, T min_out, T max_out)
154{
155 return min_out + div_ru<T> ((val - min_in) * (max_out - min_out), max_in - min_in);
106} 156}
107 157
108// lots of stuff taken from FXT 158// lots of stuff taken from FXT
109 159
110/* Rotate right. This is used in various places for checksumming */ 160/* Rotate right. This is used in various places for checksumming */
148 int32_t d = b - a; 198 int32_t d = b - a;
149 d &= d >> 31; 199 d &= d >> 31;
150 return b - d; 200 return b - d;
151} 201}
152 202
153// this is much faster than crossfires original algorithm 203// this is much faster than crossfire's original algorithm
154// on modern cpus 204// on modern cpus
155inline int 205inline int
156isqrt (int n) 206isqrt (int n)
157{ 207{
158 return (int)sqrtf ((float)n); 208 return (int)sqrtf ((float)n);
209}
210
211// this is kind of like the ^^ operator, if it would exist, without sequence point.
212// more handy than it looks like, due to the implicit !! done on its arguments
213inline bool
214logical_xor (bool a, bool b)
215{
216 return a != b;
217}
218
219inline bool
220logical_implies (bool a, bool b)
221{
222 return a <= b;
159} 223}
160 224
161// this is only twice as fast as naive sqrtf (dx*dy+dy*dy) 225// this is only twice as fast as naive sqrtf (dx*dy+dy*dy)
162#if 0 226#if 0
163// and has a max. error of 6 in the range -100..+100. 227// and has a max. error of 6 in the range -100..+100.
188absdir (int d) 252absdir (int d)
189{ 253{
190 return ((d - 1) & 7) + 1; 254 return ((d - 1) & 7) + 1;
191} 255}
192 256
257// avoid ctz name because netbsd or freebsd spams it's namespace with it
258#if GCC_VERSION(3,4)
259static inline int least_significant_bit (uint32_t x)
260{
261 return __builtin_ctz (x);
262}
263#else
264int least_significant_bit (uint32_t x);
265#endif
266
267#define for_all_bits_sparse_32(mask, idxvar) \
268 for (uint32_t idxvar, mask_ = mask; \
269 mask_ && ((idxvar = least_significant_bit (mask_)), mask_ &= ~(1 << idxvar), 1);)
270
193extern size_t slice_alloc; // statistics 271extern ssize_t slice_alloc; // statistics
272
273void *salloc_ (int n) throw (std::bad_alloc);
274void *salloc_ (int n, void *src) throw (std::bad_alloc);
275
276// strictly the same as g_slice_alloc, but never returns 0
277template<typename T>
278inline T *salloc (int n = 1) throw (std::bad_alloc) { return (T *)salloc_ (n * sizeof (T)); }
279
280// also copies src into the new area, like "memdup"
281// if src is 0, clears the memory
282template<typename T>
283inline T *salloc (int n, T *src) throw (std::bad_alloc) { return (T *)salloc_ (n * sizeof (T), (void *)src); }
284
285// clears the memory
286template<typename T>
287inline T *salloc0(int n = 1) throw (std::bad_alloc) { return (T *)salloc_ (n * sizeof (T), 0); }
288
289// for symmetry
290template<typename T>
291inline void sfree (T *ptr, int n = 1) throw ()
292{
293 if (expect_true (ptr))
294 {
295 slice_alloc -= n * sizeof (T);
296 if (DEBUG_POISON) memset (ptr, DEBUG_POISON, n * sizeof (T));
297 g_slice_free1 (n * sizeof (T), (void *)ptr);
298 assert (slice_alloc >= 0);//D
299 }
300}
301
302// nulls the pointer
303template<typename T>
304inline void sfree0 (T *&ptr, int n = 1) throw ()
305{
306 sfree<T> (ptr, n);
307 ptr = 0;
308}
194 309
195// makes dynamically allocated objects zero-initialised 310// makes dynamically allocated objects zero-initialised
196struct zero_initialised 311struct zero_initialised
197{ 312{
198 void *operator new (size_t s, void *p) 313 void *operator new (size_t s, void *p)
201 return p; 316 return p;
202 } 317 }
203 318
204 void *operator new (size_t s) 319 void *operator new (size_t s)
205 { 320 {
206 slice_alloc += s;
207 return g_slice_alloc0 (s); 321 return salloc0<char> (s);
208 } 322 }
209 323
210 void *operator new[] (size_t s) 324 void *operator new[] (size_t s)
211 { 325 {
212 slice_alloc += s;
213 return g_slice_alloc0 (s); 326 return salloc0<char> (s);
214 } 327 }
215 328
216 void operator delete (void *p, size_t s) 329 void operator delete (void *p, size_t s)
217 { 330 {
218 slice_alloc -= s; 331 sfree ((char *)p, s);
219 g_slice_free1 (s, p);
220 } 332 }
221 333
222 void operator delete[] (void *p, size_t s) 334 void operator delete[] (void *p, size_t s)
223 { 335 {
224 slice_alloc -= s; 336 sfree ((char *)p, s);
225 g_slice_free1 (s, p);
226 } 337 }
227}; 338};
228 339
229void *salloc_ (int n) throw (std::bad_alloc); 340// makes dynamically allocated objects zero-initialised
230void *salloc_ (int n, void *src) throw (std::bad_alloc); 341struct slice_allocated
231
232// strictly the same as g_slice_alloc, but never returns 0
233template<typename T>
234inline T *salloc (int n = 1) throw (std::bad_alloc) { return (T *)salloc_ (n * sizeof (T)); }
235
236// also copies src into the new area, like "memdup"
237// if src is 0, clears the memory
238template<typename T>
239inline T *salloc (int n, T *src) throw (std::bad_alloc) { return (T *)salloc_ (n * sizeof (T), (void *)src); }
240
241// clears the memory
242template<typename T>
243inline T *salloc0(int n = 1) throw (std::bad_alloc) { return (T *)salloc_ (n * sizeof (T), 0); }
244
245// for symmetry
246template<typename T>
247inline void sfree (T *ptr, int n = 1) throw ()
248{ 342{
249#if PREFER_MALLOC 343 void *operator new (size_t s, void *p)
250 free (ptr); 344 {
251#else 345 return p;
252 slice_alloc -= n * sizeof (T); 346 }
253 g_slice_free1 (n * sizeof (T), (void *)ptr); 347
254#endif 348 void *operator new (size_t s)
255} 349 {
350 return salloc<char> (s);
351 }
352
353 void *operator new[] (size_t s)
354 {
355 return salloc<char> (s);
356 }
357
358 void operator delete (void *p, size_t s)
359 {
360 sfree ((char *)p, s);
361 }
362
363 void operator delete[] (void *p, size_t s)
364 {
365 sfree ((char *)p, s);
366 }
367};
256 368
257// a STL-compatible allocator that uses g_slice 369// a STL-compatible allocator that uses g_slice
258// boy, this is verbose 370// boy, this is verbose
259template<typename Tp> 371template<typename Tp>
260struct slice_allocator 372struct slice_allocator
312// P. L'Ecuyer, “Maximally Equidistributed Combined Tausworthe Generators”, Mathematics of Computation, 65, 213 (1996), 203–213. 424// P. L'Ecuyer, “Maximally Equidistributed Combined Tausworthe Generators”, Mathematics of Computation, 65, 213 (1996), 203–213.
313// http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps 425// http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps
314// http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps 426// http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps
315struct tausworthe_random_generator 427struct tausworthe_random_generator
316{ 428{
317 // generator
318 uint32_t state [4]; 429 uint32_t state [4];
319 430
320 void operator =(const tausworthe_random_generator &src) 431 void operator =(const tausworthe_random_generator &src)
321 { 432 {
322 state [0] = src.state [0]; 433 state [0] = src.state [0];
325 state [3] = src.state [3]; 436 state [3] = src.state [3];
326 } 437 }
327 438
328 void seed (uint32_t seed); 439 void seed (uint32_t seed);
329 uint32_t next (); 440 uint32_t next ();
441};
330 442
331 // uniform distribution 443// Xorshift RNGs, George Marsaglia
444// http://www.jstatsoft.org/v08/i14/paper
445// this one is about 40% faster than the tausworthe one above (i.e. not much),
446// despite the inlining, and has the issue of only creating 2**32-1 numbers.
447// see also http://www.iro.umontreal.ca/~lecuyer/myftp/papers/xorshift.pdf
448struct xorshift_random_generator
449{
450 uint32_t x, y;
451
452 void operator =(const xorshift_random_generator &src)
453 {
454 x = src.x;
455 y = src.y;
456 }
457
458 void seed (uint32_t seed)
459 {
460 x = seed;
461 y = seed * 69069U;
462 }
463
464 uint32_t next ()
465 {
466 uint32_t t = x ^ (x << 10);
467 x = y;
468 y = y ^ (y >> 13) ^ t ^ (t >> 10);
469 return y;
470 }
471};
472
473template<class generator>
474struct random_number_generator : generator
475{
476 // uniform distribution, 0 .. max (0, num - 1)
332 uint32_t operator ()(uint32_t num) 477 uint32_t operator ()(uint32_t num)
333 { 478 {
334 return is_constant (num) 479 return !is_constant (num) ? get_range (num) // non-constant
335 ? (next () * (uint64_t)num) >> 32U 480 : num & (num - 1) ? (this->next () * (uint64_t)num) >> 32U // constant, non-power-of-two
336 : get_range (num); 481 : this->next () & (num - 1); // constant, power-of-two
337 } 482 }
338 483
339 // return a number within (min .. max) 484 // return a number within the closed interval [min .. max]
340 int operator () (int r_min, int r_max) 485 int operator () (int r_min, int r_max)
341 { 486 {
342 return is_constant (r_min) && is_constant (r_max) && r_min <= r_max 487 return is_constant (r_min) && is_constant (r_max) && r_min <= r_max
343 ? r_min + operator ()(r_max - r_min + 1) 488 ? r_min + operator ()(r_max - r_min + 1)
344 : get_range (r_min, r_max); 489 : get_range (r_min, r_max);
345 } 490 }
346 491
492 // return a number within the closed interval [0..1]
347 double operator ()() 493 double operator ()()
348 { 494 {
349 return this->next () / (double)0xFFFFFFFFU; 495 return this->next () / (double)0xFFFFFFFFU;
350 } 496 }
351 497
352protected: 498protected:
353 uint32_t get_range (uint32_t r_max); 499 uint32_t get_range (uint32_t r_max);
354 int get_range (int r_min, int r_max); 500 int get_range (int r_min, int r_max);
355}; 501};
356 502
357typedef tausworthe_random_generator rand_gen; 503typedef random_number_generator<tausworthe_random_generator> rand_gen;
358 504
359extern rand_gen rndm; 505extern rand_gen rndm, rmg_rndm;
360 506
361INTERFACE_CLASS (attachable) 507INTERFACE_CLASS (attachable)
362struct refcnt_base 508struct refcnt_base
363{ 509{
364 typedef int refcnt_t; 510 typedef int refcnt_t;
427typedef refptr<object> object_ptr; 573typedef refptr<object> object_ptr;
428typedef refptr<archetype> arch_ptr; 574typedef refptr<archetype> arch_ptr;
429typedef refptr<client> client_ptr; 575typedef refptr<client> client_ptr;
430typedef refptr<player> player_ptr; 576typedef refptr<player> player_ptr;
431 577
578#define STRHSH_NULL 2166136261
579
580static inline uint32_t
581strhsh (const char *s)
582{
583 // use FNV-1a hash (http://isthe.com/chongo/tech/comp/fnv/)
584 // it is about twice as fast as the one-at-a-time one,
585 // with good distribution.
586 // FNV-1a is faster on many cpus because the multiplication
587 // runs concurrently with the looping logic.
588 uint32_t hash = STRHSH_NULL;
589
590 while (*s)
591 hash = (hash ^ *s++) * 16777619U;
592
593 return hash;
594}
595
596static inline uint32_t
597memhsh (const char *s, size_t len)
598{
599 uint32_t hash = STRHSH_NULL;
600
601 while (len--)
602 hash = (hash ^ *s++) * 16777619U;
603
604 return hash;
605}
606
432struct str_hash 607struct str_hash
433{ 608{
434 std::size_t operator ()(const char *s) const 609 std::size_t operator ()(const char *s) const
435 { 610 {
436 unsigned long hash = 0;
437
438 /* use the one-at-a-time hash function, which supposedly is
439 * better than the djb2-like one used by perl5.005, but
440 * certainly is better then the bug used here before.
441 * see http://burtleburtle.net/bob/hash/doobs.html
442 */
443 while (*s)
444 {
445 hash += *s++;
446 hash += hash << 10;
447 hash ^= hash >> 6;
448 }
449
450 hash += hash << 3;
451 hash ^= hash >> 11;
452 hash += hash << 15;
453
454 return hash; 611 return strhsh (s);
612 }
613
614 std::size_t operator ()(const shstr &s) const
615 {
616 return strhsh (s);
455 } 617 }
456}; 618};
457 619
458struct str_equal 620struct str_equal
459{ 621{
552 erase (&obj); 714 erase (&obj);
553 } 715 }
554}; 716};
555 717
556// basically does what strncpy should do, but appends "..." to strings exceeding length 718// basically does what strncpy should do, but appends "..." to strings exceeding length
719// returns the number of bytes actually used (including \0)
557void assign (char *dst, const char *src, int maxlen); 720int assign (char *dst, const char *src, int maxsize);
558 721
559// type-safe version of assign 722// type-safe version of assign
560template<int N> 723template<int N>
561inline void assign (char (&dst)[N], const char *src) 724inline int assign (char (&dst)[N], const char *src)
562{ 725{
563 assign ((char *)&dst, src, N); 726 return assign ((char *)&dst, src, N);
564} 727}
565 728
566typedef double tstamp; 729typedef double tstamp;
567 730
568// return current time as timestamp 731// return current time as timestamp
569tstamp now (); 732tstamp now ();
570 733
571int similar_direction (int a, int b); 734int similar_direction (int a, int b);
572 735
573// like sprintf, but returns a "static" buffer 736// like v?sprintf, but returns a "static" buffer
574const char *format (const char *format, ...); 737char *vformat (const char *format, va_list ap);
738char *format (const char *format, ...) attribute ((format (printf, 1, 2)));
739
740// safety-check player input which will become object->msg
741bool msg_is_safe (const char *msg);
575 742
576///////////////////////////////////////////////////////////////////////////// 743/////////////////////////////////////////////////////////////////////////////
577// threads, very very thin wrappers around pthreads 744// threads, very very thin wrappers around pthreads
578 745
579struct thread 746struct thread
606#else 773#else
607 #define SMUTEX_INITIALISER PTHREAD_MUTEX_INITIALIZER 774 #define SMUTEX_INITIALISER PTHREAD_MUTEX_INITIALIZER
608#endif 775#endif
609 776
610#define SMUTEX(name) smutex name = SMUTEX_INITIALISER 777#define SMUTEX(name) smutex name = SMUTEX_INITIALISER
611#define SMUTEX_LOCK(name) pthread_mutex_lock (&(name)) 778#define SMUTEX_LOCK(name) pthread_mutex_lock (&(name))
612#define SMUTEX_UNLOCK(name) pthread_mutex_unlock (&(name)) 779#define SMUTEX_UNLOCK(name) pthread_mutex_unlock (&(name))
613 780
781typedef pthread_cond_t scond;
782
783#define SCOND(name) scond name = PTHREAD_COND_INITIALIZER
784#define SCOND_SIGNAL(name) pthread_cond_signal (&(name))
785#define SCOND_BROADCAST(name) pthread_cond_broadcast (&(name))
786#define SCOND_WAIT(name,mutex) pthread_cond_wait (&(name), &(mutex))
787
614#endif 788#endif
615 789

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