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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.19 by root, Thu Aug 31 17:54:14 2006 UTC vs.
Revision 1.86 by root, Mon Aug 6 10:54:12 2007 UTC

1/*
2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 *
8 * Crossfire TRT is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 *
21 * The authors can be reached via e-mail to <crossfire@schmorp.de>
22 */
23
1// 24//
2// cfperl.h perl interface 25// cfperl.h perl interface
3// 26//
4#ifndef CFPERL_H__ 27#ifndef CFPERL_H__
5#define CFPERL_H__ 28#define CFPERL_H__
6 29
30#include <cstdarg>
7#include <cstdio> 31#include <cstdio>
32#include <bitset>
8 33
9using namespace std; 34using namespace std;
10 35
11#include <EXTERN.h> 36#include <EXTERN.h>
12#include <perl.h> 37#include <perl.h>
38#include <XSUB.h>
39
40#include <EventAPI.h>
41#include <CoroAPI.h>
42
43#include "util.h"
44#include "keyword.h"
45#include "dynbuf.h"
46#include "callback.h"
47
48//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
13 49
14// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 50// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
15#undef localtime 51#undef localtime
16#undef srand48 52#undef srand48
17#undef drand48 53#undef drand48
20#undef getprotobyname 56#undef getprotobyname
21#undef gethostbyname 57#undef gethostbyname
22#undef ctime 58#undef ctime
23#undef strerror 59#undef strerror
24 60
61// same here, massive symbol spamming
62#undef do_open
63#undef do_close
64#undef ref
65#undef seed
66
25// perl bug #40256: perl does overwrite those with reentrant versions 67// perl bug #40256: perl does overwrite those with reentrant versions
26// but does not initialise their state structures. 68// but does not initialise their state structures.
27#undef random 69#undef random
28#undef crypt 70#undef crypt
29 71
72//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
73
74// some macros to simplify perl in-calls
75
76#define CHECK_ERROR \
77 if (SvTRUE (ERRSV)) \
78 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
79
80#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
81#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
82#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
83#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN;
84#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
85
86//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
87
30void cfperl_init (); 88void cfperl_init ();
31void cfperl_boot ();
32void cfperl_main (); 89void cfperl_main ();
90void cfperl_emergency_save ();
91void cfperl_cleanup (int make_core);
92void cfperl_make_book (object *book, int level);
93void cfperl_send_msg (client *ns, int color, const char *type, const char *msg);
94int cfperl_can_merge (object *ob1, object *ob2);
95
96//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
97
98extern tstamp runtime; // virtual server time, excluding time jumps and lag
99extern tstamp NOW; // real time of current server tick
33 100
34enum event_klass 101enum event_klass
35{ 102{
36 KLASS_NONE, 103 KLASS_NONE,
37 KLASS_GLOBAL, 104 KLASS_GLOBAL,
105 KLASS_ATTACHABLE,
106 KLASS_CLIENT,
38 KLASS_PLAYER, 107 KLASS_PLAYER,
39 KLASS_OBJECT, 108 KLASS_OBJECT,
40 KLASS_MAP, 109 KLASS_MAP,
110 KLASS_COMMAND,
41}; 111};
42 112
43enum event_type 113enum event_type
44{ 114{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 115# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 116# include "eventinc.h"
47# undef def 117# undef def
48 NUM_EVENT_TYPES 118 NUM_EVENT_TYPES
49}; 119};
50 120
121// in which global events or per-type events are we interested
122extern bitset<NUM_EVENT_TYPES> ev_want_event;
123extern bitset<NUM_TYPES> ev_want_type;
124
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 125#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
52#define ARG_INT(v) DT_INT , static_cast<int> (v) 126#define ARG_INT(v) DT_INT , static_cast<int> (v)
53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 127#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 128#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 129#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
56#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) 130#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
57#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 131#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
58#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 132#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 133#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 134#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
135#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 136#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
62#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 137#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
63 138
64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 139// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
65 140#define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0)
66// all these return true when the normal event processing should be skipped (if any)
67#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
68
69#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
70#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) 141#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
142#define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__)
71#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) 143#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__)
144#define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__)
72#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 145#define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__)
73#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 146#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__)
74 147
75//TODO should index into @result 148//TODO should index into @result
76#define RESULT(idx,type) cfperl_result_ ## type (idx) 149#define RESULT(idx,type) cfperl_result_ ## type (idx)
150#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
77#define RESULT_INT(idx) RESULT(idx, INT) 151#define RESULT_INT(idx) RESULT(idx, INT)
78 152
79bool cfperl_invoke (event_type event, ...); 153double cfperl_result_DOUBLE (int idx);
80int cfperl_result_INT (int idx); 154int cfperl_result_INT (int idx);
81 155
156//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
157
158INTERFACE_CLASS (attachable)
82struct attachable_base 159struct attachable : refcnt_base
83{ 160{
84 SV *self; 161 static MGVTBL vtbl;
162
163 static unordered_vector<attachable *> mortals;
164 MTH static void check_mortals ();
165
166 enum {
167 F_DESTROYED = 0x01,
168 F_DEBUG_TRACE = 0x02,
169 };
170 int ACC (RW, flags);
171
172 // object is delete'd after the refcount reaches 0
173 MTH int refcnt_cnt () const;
174 // check wether the object has died and destroy
175 MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }
176
177 // destroy the object unless it was already destroyed
178 // this politely asks everybody interested the reduce
179 // the refcount to 0 as soon as possible.
180 MTH void destroy ();
181
182 // return wether an object was destroyed already
183 MTH bool destroyed () const { return flags & F_DESTROYED; }
184
185 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
186
187#if 0
188private:
189 static refcounted *rc_first;
190 refcounted *rc_next;
191#endif
192
193 HV *self; // CF+ perl self
85 AV *cb; // CF+ perl self and callback 194 AV *cb; // CF+ callbacks
86 const char *attach; // generic extension attachment information 195 shstr attach; // generic extension attachment information
87 196
88 void clear (); // called when free'ing objects 197 void sever_self (); // sever this object from its self, if it has one.
89 void optimise (); // possibly save some memory by destroying unneeded data 198 void optimise (); // possibly save some memory by destroying unneeded data
90 void instantiate (data_type type, void *obj);
91 199
92 void attachable_init () 200 attachable ()
201 : flags (0), self (0), cb (0), attach (0)
93 { 202 {
94 self = 0;
95 cb = 0;
96 attach = 0;
97 } 203 }
98};
99 204
100// objects attachable from perl (or any other extension) should include or 205 attachable (const attachable &src)
101// derive using the curiously recurring template pattern, to avoid 206 : flags (0), self (0), cb (0), attach (src.attach)
102// virtual method calls etc. 207 {
103template<class subclass> 208 }
104struct attachable : attachable_base 209
105{ 210 // set a custom key to the given value, or delete it if value = 0
211 void set_key (const char *key, const char *value = 0);
212
213 attachable &operator =(const attachable &src);
214
215 // used to _quickly_ device wether to shortcut the evaluation
216 bool should_invoke (event_type event)
217 {
218 return ev_want_event [event] || cb;
219 }
220
221 bool invoke (event_type event, ...);
222
106 void instantiate () 223 MTH void instantiate ();
107 { 224 void reattach ();
108 if (attach)
109 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
110 }
111};
112 225
226protected:
227 // do the real refcount checking work
228 void do_check ();
229
230 // the method that does the real destroy work
231 virtual void do_destroy ();
232
233 // destructor is protected, should not be called by anybody
234 virtual ~attachable ();
235};
236
237// the global object is a pseudo object that cares for the global events
238struct global : attachable
239{
240 void gather_callbacks (AV *&callbacks, event_type event) const;
241};
242
243extern struct global gbl_ev;
244
245//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
246
113struct object_freezer : dynbuf 247struct object_freezer : dynbuf_text
114{ 248{
115 AV *av; 249 AV *av;
116 250
117 object_freezer (); 251 object_freezer ();
118 ~object_freezer (); 252 ~object_freezer ();
119 253
120 void put (attachable_base *ext); 254 void put (attachable *ext);
121 255
122 template<class subclass> 256 // used only for user-defined key-value pairs
123 void put (attachable<subclass> *obj) 257 void put (const shstr &k, const shstr &v)
124 { 258 {
125 put ((attachable_base *)obj); 259 add (k);
126 }
127 260
128 void put (const char *k, const char *v); //TODO//temporary 261 if (expect_true (v))
129 void put (const char *k, int v); //TODO//temporary 262 add (' '), add (v);
130 263
264 add ('\n');
265 }
266
267 template<typename T>
268 void put_kw_string (keyword k, const T &v)
269 {
270 int klen = keyword_len [k];
271 int vlen = v ? strlen (v) + 1 : 0;
272
273 char *p = (char *)alloc (klen + vlen + 1);
274
275 memcpy (p, keyword_str [k], klen); p += klen;
276
277 if (expect_true (v))
278 {
279 *p++ = ' '; vlen--;
280 memcpy (p, v, vlen); p += vlen;
281 }
282
283 *p = '\n';
284 }
285
131 void put (keyword k, const char *v); 286 void put (keyword k, const char *v = 0)
287 {
288 put_kw_string (k, v);
289 }
290
291 void put (keyword k, const shstr &v)
292 {
293 put_kw_string (k, v);
294 }
295
132 void put (keyword k, double v); 296 void put (keyword k, double v)
133 void put (keyword k, float v) { put (k, (double)v); } 297 {
298 force (MAX_KEYWORD_LEN + 2 + 32);
299 fadd (keyword_str [k], keyword_len [k]);
300 fadd (' ');
301 falloc (sprintf (ptr, "%.7g", v));
302 fadd ('\n');
303 }
134 304
135 void put_ (keyword k, sint32 v);
136 void put_ (keyword k, sint64 v); 305 void put_(keyword k, sint64 v)
306 {
307 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
308 fadd (keyword_str [k], keyword_len [k]);
309 fadd (' ');
310 add (v);
311 fadd ('\n');
312 }
137 313
314 void put_(keyword k, sint32 v)
315 {
316 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
317 fadd (keyword_str [k], keyword_len [k]);
318 fadd (' ');
319 add (v);
320 fadd ('\n');
321 }
322
323 void put (keyword k, float v) { put (k, (double)v); }
138 void put (keyword k, signed char v) { put_(k, (sint32)v); } 324 void put (keyword k, signed char v) { put_(k, (sint32)v); }
139 void put (keyword k, unsigned char v) { put_(k, (sint32)v); } 325 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
140 void put (keyword k, signed short v) { put_(k, (sint32)v); } 326 void put (keyword k, signed short v) { put_(k, (sint32)v); }
141 void put (keyword k, unsigned short v) { put_(k, (sint32)v); } 327 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
142 void put (keyword k, signed int v) { put_(k, (sint32)v); } 328 void put (keyword k, signed int v) { put_(k, (sint32)v); }
144 void put (keyword k, signed long v) { put_(k, (sint64)v); } 330 void put (keyword k, signed long v) { put_(k, (sint64)v); }
145 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 331 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
146 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 332 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
147 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 333 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
148 334
149 void put (keyword kbeg, keyword kend, const char *v); // multiline 335 void put (keyword kbeg, keyword kend, const shstr &v)
336 {
337 force (MAX_KEYWORD_LEN + 1);
338 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
339
340 if (expect_true (v))
341 {
342 add (v);
343 add ('\n');
344 }
345
346 force (MAX_KEYWORD_LEN + 1);
347 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
348 }
349
350 void put (keyword k, archetype *v);
351 void put (keyword k, treasurelist *v);
352 void put (keyword k, faceinfo *v);
150 353
151 template<typename T> 354 template<typename T>
152 void put (keyword k, T *v) 355 void put (keyword k, const refptr<T> &v)
153 { 356 {
154 put (k, v ? (const char *)v->name : 0); 357 put (k, (T *)v);
155 } 358 }
156 359
157 bool save (const char *filename); 360 bool save (const char *path);
361 char *as_string (); // like strdup
158 362
159 operator bool () { return !!av; } 363 operator bool () { return !!av; }
160}; 364};
161 365
162// compatibility support, should be removed when no longer needed
163int fprintf (object_freezer &freezer, const char *format, ...);
164int fputs (const char *s, object_freezer &freezer);
165
166// a single key-value line from a file
167struct token {
168 keyword k;
169 const char *v;
170
171 token (keyword k, const char *v = 0) : k(k), v(v) { }
172};
173
174struct object_thawer 366struct object_thawer
175{ 367{
176 AV *av; 368 char *line; // current beginning of line
177 FILE *fp; 369 SV *text; // text part
178 char line[1024]; 370 AV *av; // perl part
371 int linenum;
372 keyword kw;
373 char *kw_str; // the keyword parsed, as string
374 char *value; // the value, or 0 if no value
375 char *value_nn; // the value, or the empty string if no value
376 const char *name;
179 377
378 operator bool () { return !!text; }
379
180 object_thawer (const char *filename = 0); 380 object_thawer (const char *path = 0);
381 object_thawer (const char *data, AV *perlav);
181 ~object_thawer (); 382 ~object_thawer ();
182 383
183 void get (data_type type, void *obj, attachable_base *ext, int oid);
184
185 template<class subclass>
186 void get (attachable<subclass> *obj, int oid) 384 void get (attachable *obj, int oid);
187 {
188 if (av)
189 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
190 }
191 385
192 token get_token (); 386 // parse next line
387 void next ();
388 // skip the current key-value (usually fetch next line, for
389 // multiline-fields, skips till the corresponding end-kw
390 void skip ();
193 391
194 operator FILE *() { return fp; } 392 char *get_str () { return value; } // may be 0
393 void get_ml (keyword kend, shstr &sh);
394
395 void get_ornull (shstr &sh) const { sh = value; }
396 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
397
398 bool get_bool () const { return *value_nn == '1'; }
399 sint32 get_sint32 () const;
400 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
401 double get_double () const { return strtod (value_nn, 0); }
402
403 void get (float &v) { v = get_double (); }
404 void get (double &v) { v = get_double (); }
405
406 void get (bool &i) { i = get_bool (); }
407 void get (sint8 &i) { i = get_sint32 (); }
408 void get (uint8 &i) { i = get_sint32 (); }
409 void get (sint16 &i) { i = get_sint32 (); }
410 void get (uint16 &i) { i = get_sint32 (); }
411 void get (sint32 &i) { i = get_sint32 (); }
412
413 void get (uint32 &i) { i = get_sint64 (); }
414 void get (sint64 &i) { i = get_sint64 (); }
415
416 void parse_warn (const char *msg);
417 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
418};
419
420//TODO: remove
421char *fgets (char *s, int n, object_thawer &thawer);
422
423//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
424
425struct coroapi {
426 static struct CoroAPI *GCoroAPI;
427
428 static int nready () { return CORO_NREADY; }
429 static int cede () { return CORO_CEDE ; }
430
431 static tstamp next_cede;
432 static int cede_counter;
433
434 static void do_cede_every ();
435 static void do_cede_to_tick ();
436 static void do_cede_to_tick_every ();
437
438 static void cede_every (int count)
439 {
440 if (expect_false (++cede_counter >= count))
441 do_cede_every ();
442 }
443
444 static bool cede_to_tick ()
445 {
446 if (expect_true (now () < next_cede))
447 return false;
448
449 do_cede_to_tick ();
450 return true;
451 }
452
453 static bool cede_to_tick_every (int count)
454 {
455 if (expect_true (++cede_counter < count))
456 return false;
457
458 return cede_to_tick ();
459 }
460
461 static void wait_for_tick ();
462 static void wait_for_tick_begin ();
463};
464
465struct watcher_base
466{
467 static struct EventAPI *GEventAPI;
468};
469
470template<class base>
471struct watcher : watcher_base
472{
473 base *pe;
474
475 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
476 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
477 void now () { GEventAPI->now ((pe_watcher *)pe); }
478 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
479 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
480
481 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
482
483 ~watcher ()
484 {
485 cancel ();
486 }
487
488private:
489 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
490};
491
492struct iw : watcher<pe_idle>, callback<void (iw &)>
493{
494 template<class O, class M>
495 iw (O object, M method)
496 : callback<void (iw &)> (object, method)
497 {
498 alloc ();
499 }
500
501private:
502 void alloc ();
503};
504
505struct iow : watcher<pe_io>, callback<void (iow &, int)>
506{
507 template<class O, class M>
508 iow (O object, M method)
509 : callback<void (iow &, int)> (object, method)
510 {
511 alloc ();
512 }
513
514 void fd (int fd);
515 int poll ();
516 void poll (int events);
517
518private:
519 void alloc ();
195}; 520};
196 521
197#endif 522#endif
198 523

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