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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.72 by root, Mon May 28 05:24:07 2007 UTC vs.
Revision 1.123 by root, Sat Jun 26 22:10:18 2010 UTC

1/*
2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 *
4 * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 *
6 * Deliantra is free software: you can redistribute it and/or modify it under
7 * the terms of the Affero GNU General Public License as published by the
8 * Free Software Foundation, either version 3 of the License, or (at your
9 * option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the Affero GNU General Public License
17 * and the GNU General Public License along with this program. If not, see
18 * <http://www.gnu.org/licenses/>.
19 *
20 * The authors can be reached via e-mail to <support@deliantra.net>
21 */
22
1// 23//
2// cfperl.h perl interface 24// cfperl.h perl interface
3// 25//
4#ifndef CFPERL_H__ 26#ifndef CFPERL_H__
5#define CFPERL_H__ 27#define CFPERL_H__
6 28
7#include <cstdarg>
8#include <cstdio>
9#include <bitset>
10
11using namespace std; 29using namespace std;
12 30
13#include <EXTERN.h> 31#include <EXTERN.h>
14#include <perl.h> 32#include <perl.h>
15#include <XSUB.h> 33#include <XSUB.h>
16 34
17#include <EventAPI.h> 35#include <EVAPI.h>
18#include <CoroAPI.h> 36#include <CoroAPI.h>
19 37
20#include "util.h" 38#include "util.h"
21#include "keyword.h" 39#include "keyword.h"
22#include "dynbuf.h" 40#include "dynbuf.h"
… …
27// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 45// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
28#undef localtime 46#undef localtime
29#undef srand48 47#undef srand48
30#undef drand48 48#undef drand48
31#undef srandom 49#undef srandom
50#undef opendir
32#undef readdir 51#undef readdir
52#undef closedir
33#undef getprotobyname 53#undef getprotobyname
34#undef gethostbyname 54#undef gethostbyname
35#undef ctime 55#undef ctime
36#undef strerror 56#undef strerror
57#undef _
37 58
38// same here, massive symbol spamming 59// same here, massive symbol spamming
39#undef do_open 60#undef do_open
40#undef do_close 61#undef do_close
41#undef ref 62#undef ref
… …
46#undef random 67#undef random
47#undef crypt 68#undef crypt
48 69
49////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 70//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
50 71
72#define _(msg) (msg)
73#define N_(msg) (msg)
74
75//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
76
51// some macros to simplify perl in-calls 77// some macros to simplify perl in-calls
52 78
53#define CHECK_ERROR \ 79#define CHECK_ERROR \
54 if (SvTRUE (ERRSV)) \ 80 if (SvTRUE (ERRSV)) \
55 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV)); 81 LOG (llevError, "runtime error in %s: %s", __func__, SvPVutf8_nolen (ERRSV));
56 82
83inline int call_pvsv (const char *ob, I32 flags) { return call_pv (ob, flags); }
84inline int call_pvsv (SV *ob, I32 flags) { return call_sv (ob, flags); }
85
86// TODO: temporarily enabled pushstack/popstack for all calls from the core, to maybe fix object memleak?
87#define CALL_PUSH PUSHSTACKi (PERLSI_UNKNOWN)
88#define CALL_POP PUTBACK; POPSTACK; SPAGAIN
57#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args) 89#define CALL_BEGIN(args) dSP; CALL_PUSH; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
58#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc 90#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
59#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr))) 91#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
60#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN; 92#define CALL_CALL(name, flags) PUTBACK; int count = call_pvsv (name, (flags) | G_EVAL); SPAGAIN;
61#define CALL_END CHECK_ERROR; FREETMPS; LEAVE 93#define CALL_END PUTBACK; CHECK_ERROR; FREETMPS; LEAVE; CALL_POP
62 94
63////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 95//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
64 96
65void cfperl_init (); 97void cfperl_init ();
66void cfperl_main (); 98void cfperl_main ();
99void cfperl_tick ();
67void cfperl_emergency_save (); 100void cfperl_emergency_save ();
68void cfperl_cleanup (int make_core); 101void cfperl_cleanup (int make_core);
69void cfperl_make_book (object *book, int level); 102void cfperl_make_book (object *book, int level);
103void cfperl_send_msg (client *ns, int color, const_utf8_string type, const_utf8_string msg);
104int cfperl_can_merge (object *ob1, object *ob2);
105void cfperl_mapscript_activate (object *ob, int state, object *activator, object *originator = 0);
70 106
71////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 107bool is_match_expr (const_utf8_string expr);
108// applies the match expression and returns true if it matches
109bool match (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0);
110// same as above, but returns the first object found, or 0
111object *match_one (const_utf8_string expr, object *ob, object *self = 0, object *source = 0, object *originator = 0);
72 112
113//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
114
115#if IVSIZE >= 8
116 typedef IV val64;
117 typedef IV uval64;
118# define newSVval64 newSViv
119# define SvVAL64 SvIV
120# define newSVuval64 newSVuv
121# define SvUVAL64 SvUV
122#else
123 typedef double val64;
124 typedef double uval64;
125# define newSVval64 newSVnv
126# define SvVAL64 SvNV
127# define newSVuval64 newSVnv
128# define SvUVAL64 SvNV
129#endif
130
73// virtual server time, excluding time jumps and lag 131extern tstamp runtime; // virtual server time, excluding time jumps and lag
74extern double runtime; 132extern tstamp NOW; // real time of current server tick
133
134noinline utf8_string cfSvPVutf8_nolen (SV *sv);
75 135
76enum event_klass 136enum event_klass
77{ 137{
78 KLASS_NONE, 138 KLASS_NONE,
79 KLASS_GLOBAL, 139 KLASS_GLOBAL,
… …
129int cfperl_result_INT (int idx); 189int cfperl_result_INT (int idx);
130 190
131////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 191//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
132 192
133INTERFACE_CLASS (attachable) 193INTERFACE_CLASS (attachable)
134struct attachable 194struct attachable : refcnt_base
135{ 195{
136 static MGVTBL vtbl; 196 static MGVTBL vtbl;
137
138 static unordered_vector<attachable *> mortals;
139 MTH static void check_mortals ();
140 197
141 enum { 198 enum {
142 F_DESTROYED = 0x01, 199 F_DESTROYED = 0x01,
143 F_DEBUG_TRACE = 0x02, 200 F_DEBUG_TRACE = 0x02,
144 }; 201 };
202 uint8 ACC (RW, attachable_flags);
203
204 static unordered_vector<attachable *> mortals;
205 MTH static void check_mortals ();
145 206
146 // object is delete'd after the refcount reaches 0 207 // object is delete'd after the refcount reaches 0
147 int ACC (RW, flags);
148 mutable int ACC (RW, refcnt);
149
150 MTH void refcnt_inc () const { ++refcnt; }
151 MTH void refcnt_dec () const { --refcnt; }
152
153 MTH int refcnt_cnt () const; 208 MTH int refcnt_cnt () const;
154 // check wether the object has died and destroy 209 // check wether the object has died and destroy
155 MTH void refcnt_chk () { if (refcnt <= 0) do_check (); } 210 MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }
156 211
157 // destroy the object unless it was already destroyed 212 // destroy the object unless it was already destroyed
158 // this politely asks everybody interested the reduce 213 // this politely asks everybody interested the reduce
159 // the refcount to 0 as soon as possible. 214 // the refcount to 0 as soon as possible.
160 MTH void destroy (); 215 MTH void destroy ();
161 216
162 // return wether an object was destroyed already 217 // return wether an object was destroyed already
163 MTH bool destroyed () const { return flags & F_DESTROYED; } 218 MTH bool destroyed () const { return attachable_flags & F_DESTROYED; }
219
220 // destruct and free the memory for this object
221 virtual void do_delete ();
164 222
165 virtual void gather_callbacks (AV *&callbacks, event_type event) const; 223 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
166 224
167#if 0 225#if 0
168private: 226private:
… …
176 234
177 void sever_self (); // sever this object from its self, if it has one. 235 void sever_self (); // sever this object from its self, if it has one.
178 void optimise (); // possibly save some memory by destroying unneeded data 236 void optimise (); // possibly save some memory by destroying unneeded data
179 237
180 attachable () 238 attachable ()
181 : flags (0), refcnt (0), self (0), cb (0), attach (0) 239 : attachable_flags (0), self (0), cb (0), attach (0)
182 { 240 {
183 } 241 }
184 242
185 attachable (const attachable &src) 243 attachable (const attachable &src)
186 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach) 244 : attachable_flags (0), self (0), cb (0), attach (src.attach)
187 { 245 {
188 } 246 }
189 247
190 virtual ~attachable (); 248 // set a custom key to the given value, or delete it if value = 0
249 void set_key (const_utf8_string key, const_utf8_string value = 0, bool is_utf8 = 0);
250
251 void set_key_text (const_utf8_string key, const_utf8_string value = 0)
252 {
253 set_key (key, value, 1);
254 }
255
256 void set_key_data (const_utf8_string key, const_utf8_string value = 0)
257 {
258 set_key (key, value, 0);
259 }
191 260
192 attachable &operator =(const attachable &src); 261 attachable &operator =(const attachable &src);
193 262
194 // used to _quickly_ device wether to shortcut the evaluation 263 // used to _quickly_ decide wether to shortcut the evaluation
195 bool should_invoke (event_type event) 264 bool should_invoke (event_type event)
196 { 265 {
197 return ev_want_event [event] || cb; 266 return ev_want_event [event] || cb;
198 } 267 }
199 268
… …
206 // do the real refcount checking work 275 // do the real refcount checking work
207 void do_check (); 276 void do_check ();
208 277
209 // the method that does the real destroy work 278 // the method that does the real destroy work
210 virtual void do_destroy (); 279 virtual void do_destroy ();
280
281 // destructor is protected, should not be called by anybody
282 virtual ~attachable ();
211}; 283};
212 284
213// the global object is a pseudo object that cares for the global events 285// the global object is a pseudo object that cares for the global events
214struct global : attachable 286struct global : attachable
215{ 287{
… …
218 290
219extern struct global gbl_ev; 291extern struct global gbl_ev;
220 292
221////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 293//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
222 294
223struct object_freezer : dynbuf_text 295#include "freezethaw.h"
224{
225 AV *av;
226
227 object_freezer ();
228 ~object_freezer ();
229
230 void put (attachable *ext);
231
232 // used only for user-defined key-value pairs
233 void put (const shstr &k, const shstr &v)
234 {
235 add (k);
236
237 if (expect_true (v))
238 add (' '), add (v);
239
240 add ('\n');
241 }
242
243 template<typename T>
244 void put_string (keyword k, const T &v)
245 {
246 int klen = keyword_len [k];
247 int vlen = v ? strlen (v) + 1 : 0;
248
249 char *p = (char *)alloc (klen + vlen + 1);
250
251 memcpy (p, keyword_str [k], klen); p += klen;
252
253 if (expect_true (v))
254 {
255 *p++ = ' '; vlen--;
256 memcpy (p, v, vlen); p += vlen;
257 }
258
259 *p = '\n';
260 }
261
262 void put (keyword k, const char *v = 0)
263 {
264 put_string (k, v);
265 }
266
267 void put (keyword k, const shstr &v)
268 {
269 put_string (k, v);
270 }
271
272 void put (keyword k, double v)
273 {
274 force (MAX_KEYWORD_LEN + 2 + 32);
275 fadd (keyword_str [k], keyword_len [k]);
276 fadd (' ');
277 falloc (sprintf (ptr, "%.7g", v));
278 fadd ('\n');
279 }
280
281 void put_(keyword k, sint64 v)
282 {
283 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
284 fadd (keyword_str [k], keyword_len [k]);
285 fadd (' ');
286 add (v);
287 fadd ('\n');
288 }
289
290 void put_(keyword k, sint32 v)
291 {
292 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
293 fadd (keyword_str [k], keyword_len [k]);
294 fadd (' ');
295 add (v);
296 fadd ('\n');
297 }
298
299 void put (keyword k, float v) { put (k, (double)v); }
300 void put (keyword k, signed char v) { put_(k, (sint32)v); }
301 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
302 void put (keyword k, signed short v) { put_(k, (sint32)v); }
303 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
304 void put (keyword k, signed int v) { put_(k, (sint32)v); }
305 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
306 void put (keyword k, signed long v) { put_(k, (sint64)v); }
307 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
308 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
309 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
310
311 void put (keyword kbeg, keyword kend, const shstr &v)
312 {
313 force (MAX_KEYWORD_LEN + 1);
314 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
315
316 if (expect_true (v))
317 {
318 add (v);
319 add ('\n');
320 }
321
322 force (MAX_KEYWORD_LEN + 1);
323 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
324 }
325
326 template<typename T>
327 void put (keyword k, const T *v)
328 {
329 if (v)
330 put (k, v->name);
331 else
332 put (k, (const char *)0);
333 }
334
335 template<typename T>
336 void put (keyword k, const refptr<T> &v)
337 {
338 put (k, (T *)v);
339 }
340
341 bool save (const char *path);
342 char *as_string (); // like strdup
343
344 operator bool () { return !!av; }
345};
346
347struct object_thawer
348{
349 char *line; // current beginning of line
350 SV *text; // text part
351 AV *av; // perl part
352 int linenum;
353 keyword kw;
354 char *kw_str; // the keyword parsed, as string
355 char *value; // the value, or 0 if no value
356 char *value_nn; // the value, or the empty string if no value
357 const char *name;
358
359 operator bool () { return !!text; }
360
361 object_thawer (const char *path = 0);
362 object_thawer (const char *data, AV *perlav);
363 ~object_thawer ();
364
365 void get (attachable *obj, int oid);
366
367 // parse next line
368 void next ();
369 // skip the current key-value (usually fetch next line, for
370 // multiline-fields, skips untilt he corresponding end-kw
371 void skip ();
372
373 //TODO: remove, deprecated
374 keyword get_kv ()
375 {
376 next ();
377 return kw;
378 }
379
380 char *get_str () { return value; } // may be 0
381 void get_ml (keyword kend, shstr &sh);
382
383 void get_ornull (shstr &sh) const { sh = value; }
384 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
385
386 bool get_bool () const { return *value_nn == '1'; }
387 sint32 get_sint32 () const;
388 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
389 double get_double () const { return strtod (value_nn, 0); }
390
391 void get (float &v) { v = get_double (); }
392 void get (double &v) { v = get_double (); }
393
394 void get (bool &i) { i = get_bool (); }
395 void get (sint8 &i) { i = get_sint32 (); }
396 void get (uint8 &i) { i = get_sint32 (); }
397 void get (sint16 &i) { i = get_sint32 (); }
398 void get (uint16 &i) { i = get_sint32 (); }
399 void get (sint32 &i) { i = get_sint32 (); }
400
401 void get (uint32 &i) { i = get_sint64 (); }
402 void get (sint64 &i) { i = get_sint64 (); }
403
404 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
405};
406
407//TODO: remove
408char *fgets (char *s, int n, object_thawer &thawer);
409 296
410////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 297//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
411 298
412struct coroapi { 299struct coroapi {
413 static struct CoroAPI *GCoroAPI; 300 static struct CoroAPI *GCoroAPI;
414 301
302 static EV_ATOMIC_T cede_pending;
303
415 static int nready () { return CORO_NREADY; } 304 static int nready () { return CORO_NREADY; }
416 static int cede () { return CORO_CEDE ; } 305 static int cede () { cede_pending = 0; return CORO_CEDE ; }
417 306
418 static double (*time)();
419 static double next_cede;
420 static int cede_counter;
421
422 static void do_cede_every ();
423 static void do_cede_to_tick (); 307 static void do_cede_to_tick ();
424 static void do_cede_to_tick_every ();
425 308
426 static void cede_every (int count) 309 // actually cede's far more often
427 {
428 if (expect_false (++cede_counter >= count))
429 do_cede_every ();
430 }
431
432 static void cede_to_tick () 310 static bool cede_to_tick ()
433 { 311 {
434 if (expect_false (time () >= next_cede)) 312 if (expect_true (!cede_pending))
313 return false;
314
435 do_cede_to_tick (); 315 do_cede_to_tick ();
436 } 316 return true;
437
438 static void cede_to_tick_every (int count)
439 {
440 if (expect_false (++cede_counter >= count))
441 cede_to_tick ();
442 } 317 }
443 318
444 static void wait_for_tick (); 319 static void wait_for_tick ();
445 static void wait_for_tick_begin (); 320 static void wait_for_tick_begin ();
446}; 321};
447 322
448struct watcher_base 323struct evapi
449{ 324{
450 static struct EventAPI *GEventAPI; 325 static struct EVAPI *GEVAPI;
451}; 326};
452 327
453template<class base>
454struct watcher : watcher_base
455{
456 base *pe;
457
458 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
459 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
460 void now () { GEventAPI->now ((pe_watcher *)pe); }
461 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
462 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
463
464 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
465
466 ~watcher ()
467 {
468 cancel ();
469 }
470
471private:
472 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
473};
474
475struct iw : watcher<pe_idle>, callback<void (iw &)>
476{
477 template<class O, class M>
478 iw (O object, M method)
479 : callback<void (iw &)> (object, method)
480 {
481 alloc ();
482 }
483
484private:
485 void alloc ();
486};
487
488struct iow : watcher<pe_io>, callback<void (iow &, int)> 328struct iow : ev_io, evapi, callback<void (iow &, int)>
489{ 329{
330 static void thunk (EV_P_ struct ev_io *w_, int revents)
331 {
332 iow &w = *static_cast<iow *>(w_);
333
334 w (w, revents);
335 }
336
490 template<class O, class M> 337 template<class O, class M>
491 iow (O object, M method) 338 iow (O object, M method)
492 : callback<void (iow &, int)> (object, method) 339 : callback<void (iow &, int)> (object, method)
493 { 340 {
494 alloc (); 341 ev_init ((ev_io *)this, thunk);
495 } 342 }
496 343
497 void fd (int fd); 344 void prio (int prio)
498 int poll (); 345 {
346 ev_set_priority ((ev_io *)this, prio);
347 }
348
349 void set (int fd, int events)
350 {
351 ev_io_set ((ev_io *)this, fd, events);
352 }
353
354 int poll () const { return events; }
355
499 void poll (int events); 356 void poll (int events);
500 357
501private: 358 void start ()
502 void alloc (); 359 {
360 ev_io_start (EV_DEFAULT, (ev_io *)this);
361 }
362
363 void stop ()
364 {
365 ev_io_stop (EV_DEFAULT, (ev_io *)this);
366 }
367
368 ~iow ()
369 {
370 stop ();
371 }
372};
373
374struct asyncw : ev_async, evapi, callback<void (ev_async &, int)>
375{
376 static void thunk (EV_P_ struct ev_async *w_, int revents)
377 {
378 asyncw &w = *static_cast<asyncw *>(w_);
379
380 w (w, revents);
381 }
382
383 template<class O, class M>
384 asyncw (O object, M method)
385 : callback<void (asyncw &, int)> (object, method)
386 {
387 ev_init ((ev_async *)this, thunk);
388 }
389
390 void start ()
391 {
392 ev_async_start (EV_DEFAULT, (ev_async *)this);
393 }
394
395 void stop ()
396 {
397 ev_async_stop (EV_DEFAULT, (ev_async *)this);
398 }
399
400 ~asyncw ()
401 {
402 stop ();
403 }
503}; 404};
504 405
505#endif 406#endif
506 407

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