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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.37 by root, Fri Dec 15 19:59:19 2006 UTC vs.
Revision 1.65 by root, Thu May 24 03:33:29 2007 UTC

… …
2// cfperl.h perl interface 2// cfperl.h perl interface
3// 3//
4#ifndef CFPERL_H__ 4#ifndef CFPERL_H__
5#define CFPERL_H__ 5#define CFPERL_H__
6 6
7#include <cstdarg>
7#include <cstdio> 8#include <cstdio>
9#include <bitset>
8 10
9using namespace std; 11using namespace std;
10 12
11#include <EXTERN.h> 13#include <EXTERN.h>
12#include <perl.h> 14#include <perl.h>
13#include <XSUB.h> 15#include <XSUB.h>
14 16
15#include <EventAPI.h> 17#include <EventAPI.h>
18#include <CoroAPI.h>
16 19
20#include "util.h"
21#include "keyword.h"
22#include "dynbuf.h"
17#include "callback.h" 23#include "callback.h"
24
25//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
18 26
19// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 27// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
20#undef localtime 28#undef localtime
21#undef srand48 29#undef srand48
22#undef drand48 30#undef drand48
… …
25#undef getprotobyname 33#undef getprotobyname
26#undef gethostbyname 34#undef gethostbyname
27#undef ctime 35#undef ctime
28#undef strerror 36#undef strerror
29 37
38// same here, massive symbol spamming
39#undef do_open
40#undef do_close
41#undef ref
42#undef seed
43
30// perl bug #40256: perl does overwrite those with reentrant versions 44// perl bug #40256: perl does overwrite those with reentrant versions
31// but does not initialise their state structures. 45// but does not initialise their state structures.
32#undef random 46#undef random
33#undef crypt 47#undef crypt
34 48
49//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
50
51// some macros to simplify perl in-calls
52
53#define CHECK_ERROR \
54 if (SvTRUE (ERRSV)) \
55 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
56
57#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
58#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)))
60#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN;
61#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
62
63//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
64
35void cfperl_init (); 65void cfperl_init ();
36void cfperl_main (); 66void cfperl_main ();
67void cfperl_emergency_save ();
68void cfperl_cleanup (int make_core);
69void cfperl_make_book (object *book, int level);
70
71//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
72
73// virtual server time, excluding time jumps and lag
74extern double runtime;
37 75
38enum event_klass 76enum event_klass
39{ 77{
40 KLASS_NONE, 78 KLASS_NONE,
41 KLASS_GLOBAL, 79 KLASS_GLOBAL,
80 KLASS_ATTACHABLE,
42 KLASS_SOCKET, 81 KLASS_CLIENT,
43 KLASS_PLAYER, 82 KLASS_PLAYER,
44 KLASS_OBJECT, 83 KLASS_OBJECT,
45 KLASS_MAP, 84 KLASS_MAP,
46 KLASS_COMMAND, 85 KLASS_COMMAND,
47}; 86};
… …
52# include "eventinc.h" 91# include "eventinc.h"
53# undef def 92# undef def
54 NUM_EVENT_TYPES 93 NUM_EVENT_TYPES
55}; 94};
56 95
96// in which global events or per-type events are we interested
97extern bitset<NUM_EVENT_TYPES> ev_want_event;
98extern bitset<NUM_TYPES> ev_want_type;
99
57#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 100#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
58#define ARG_INT(v) DT_INT , static_cast<int> (v) 101#define ARG_INT(v) DT_INT , static_cast<int> (v)
59#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 102#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
60#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 103#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
61#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 104#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
62#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l) 105#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
63#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o) 106#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
64#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) 107#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
65#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) 108#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
66#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) 109#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
110#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
67#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) 111#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
68#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) 112#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
69#define ARG_SOCKET(o) DT_SOCKET, (void *)static_cast<client *> (o)
70 113
71// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 114// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
72 115
73// all these return true when the normal event processing should be skipped (if any) 116// all these return true when the normal event processing should be skipped (if any)
74#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
75
76#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
77#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) 117#define INVOKE_GLOBAL(event, ...) gbl_ev.invoke (EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__, DT_END)
118#define INVOKE_ATTACHABLE(event, obj, ...) (obj)->invoke (EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__, DT_END)
78#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) 119#define INVOKE_OBJECT(event, obj, ...) (obj)->invoke (EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__, DT_END)
79#define INVOKE_SOCKET(event, ns, ...) INVOKE_(EVENT_ ## SOCKET ## _ ## event, ARG_SOCKET (ns), ## __VA_ARGS__) 120#define INVOKE_CLIENT(event, obj, ...) (obj)->invoke (EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__, DT_END)
80#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 121#define INVOKE_PLAYER(event, obj, ...) (obj)->invoke (EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__, DT_END)
81#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 122#define INVOKE_MAP(event, obj, ...) (obj)->invoke (EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__, DT_END)
82 123
83//TODO should index into @result 124//TODO should index into @result
84#define RESULT(idx,type) cfperl_result_ ## type (idx) 125#define RESULT(idx,type) cfperl_result_ ## type (idx)
85#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE) 126#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
86#define RESULT_INT(idx) RESULT(idx, INT) 127#define RESULT_INT(idx) RESULT(idx, INT)
87 128
88bool cfperl_invoke (event_type event, ...);
89double cfperl_result_DOUBLE (int idx); 129double cfperl_result_DOUBLE (int idx);
90int cfperl_result_INT (int idx); 130int cfperl_result_INT (int idx);
91 131
132//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
133
134INTERFACE_CLASS (attachable)
92struct attachable_base 135struct attachable
93{ 136{
137 static MGVTBL vtbl;
138
139 static unordered_vector<attachable *> mortals;
140 MTH static void check_mortals ();
141
142 enum {
143 F_DESTROYED = 0x01,
144 F_DEBUG_TRACE = 0x02,
145 };
146
147 // object is delete'd after the refcount reaches 0
148 int ACC (RW, flags);
149 mutable int ACC (RW, refcnt);
150
151 MTH void refcnt_inc () const { ++refcnt; }
152 MTH void refcnt_dec () const { --refcnt; }
153
154 MTH int refcnt_cnt () const;
155 // check wether the object has died and destroy
156 MTH void refcnt_chk () { if (refcnt <= 0) do_check (); }
157
158 // destroy the object unless it was already destroyed
159 // this politely asks everybody interested the reduce
160 // the refcount to 0 as soon as possible.
161 MTH void destroy ();
162
163 // return wether an object was destroyed already
164 MTH bool destroyed () const { return flags & F_DESTROYED; }
165
166 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
167
168#if 0
169private:
170 static refcounted *rc_first;
171 refcounted *rc_next;
172#endif
173
94 SV *self; // CF+ perl self 174 HV *self; // CF+ perl self
95 AV *cb; // CF+ callbacks 175 AV *cb; // CF+ callbacks
96 shstr attach; // generic extension attachment information 176 shstr attach; // generic extension attachment information
97 177
98 void clear (); // called when free'ing objects 178 void sever_self (); // sever this object from its self, if it has one.
99 void optimise (); // possibly save some memory by destroying unneeded data 179 void optimise (); // possibly save some memory by destroying unneeded data
100 void instantiate (data_type type, void *obj);
101 180
102 void attachable_clear ()
103 {
104 self = 0;
105 cb = 0;
106 attach = 0;
107 }
108
109 attachable_base () 181 attachable ()
182 : flags (0), refcnt (0), self (0), cb (0), attach (0)
110 { 183 {
111 attachable_clear ();
112 } 184 }
113 185
114 ~attachable_base ()
115 {
116 clear ();
117 }
118
119 attachable_base (const attachable_base &src) 186 attachable (const attachable &src)
120 : self (0), cb (0), attach (src.attach) 187 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
121 { 188 {
122 } 189 }
123 190
191 virtual ~attachable ();
192
124 attachable_base &operator =(const attachable_base &src) 193 attachable &operator =(const attachable &src);
125 {
126 clear ();
127 attach = src.attach;
128 return *this;
129 }
130};
131 194
132// objects attachable from perl (or any other extension) should include or 195 bool vinvoke (event_type event, va_list &ap);
133// derive using the curiously recurring template pattern, to avoid 196 bool invoke (event_type event, ...)
134// virtual method calls etc. 197 {
135template<class subclass> 198 if (ev_want_event [event] || cb)
136struct attachable : attachable_base 199 {
137{ 200 va_list ap;
201 va_start (ap, event);
202 vinvoke (event, ap);
203 va_end (ap);
204 }
205 }
206
138 void instantiate () 207 MTH void instantiate ();
139 { 208 void reattach ();
140 if (attach)
141 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
142 }
143};
144 209
210protected:
211 // do the real refcount checking work
212 void do_check ();
213
214 // the method that does the real destroy work
215 virtual void do_destroy ();
216};
217
218// the global object is a pseudo object that cares for the global events
219struct global : attachable
220{
221 void gather_callbacks (AV *&callbacks, event_type event) const;
222};
223
224extern struct global gbl_ev;
225
226//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
227
145struct object_freezer : dynbuf 228struct object_freezer : dynbuf_text
146{ 229{
147 AV *av; 230 AV *av;
148 231
149 object_freezer (); 232 object_freezer ();
150 ~object_freezer (); 233 ~object_freezer ();
151 234
152 void put (attachable_base *ext); 235 void put (attachable *ext);
153
154 template<class subclass>
155 void put (attachable<subclass> *obj)
156 {
157 put ((attachable_base *)obj);
158 }
159 236
160 // used only for user-defined key-value pairs 237 // used only for user-defined key-value pairs
161 void put (const shstr &k, const shstr &v) 238 void put (const shstr &k, const shstr &v)
162 { 239 {
163 add (k); 240 add (k);
… …
194 } 271 }
195 272
196 *p = '\n'; 273 *p = '\n';
197 } 274 }
198 275
199 void put (keyword k, const char *v) 276 void put (keyword k, const char *v = 0)
200 { 277 {
201 put_string (k, v); 278 put_string (k, v);
202 } 279 }
203 280
204 void put (keyword k, const shstr &v) 281 void put (keyword k, const shstr &v)
… …
269 void put (keyword k, const refptr<T> &v) 346 void put (keyword k, const refptr<T> &v)
270 { 347 {
271 put (k, (T *)v); 348 put (k, (T *)v);
272 } 349 }
273 350
274 bool save (const char *filename); 351 bool save (const char *path);
275 char *as_string (); // like strdup 352 char *as_string (); // like strdup
276 353
277 operator bool () { return !!av; } 354 operator bool () { return !!av; }
278}; 355};
279 356
280// compatibility support, should be removed when no longer needed 357// compatibility support, should be removed when no longer needed
281int fprintf (object_freezer &freezer, const char *format, ...); 358void fprintf (object_freezer &freezer, const char *format, ...);
282int fputs (const char *s, object_freezer &freezer); 359void fputs (const char *s, object_freezer &freezer);
283 360
284struct object_thawer 361struct object_thawer
285{ 362{
286 SV *text; // text part 363 SV *text; // text part
287 AV *av; // perl part 364 AV *av; // perl part
365 int linenum;
288 char *line; // current beginning of line 366 char *line; // current beginning of line
367 keyword kw;
289 char *last_value; 368 char *kw_str, *value;
369 const char *name;
290 370
291 operator bool () { return !!text; } 371 operator bool () { return !!text; }
292 372
293 object_thawer (const char *filename = 0); 373 object_thawer (const char *path = 0);
294 object_thawer (const char *data, AV *perlav); 374 object_thawer (const char *data, AV *perlav);
295 ~object_thawer (); 375 ~object_thawer ();
296 376
297 void get (data_type type, void *obj, attachable_base *ext, int oid);
298
299 template<class subclass>
300 void get (attachable<subclass> *obj, int oid) 377 void get (attachable *obj, int oid);
301 {
302 if (av)
303 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
304 }
305 378
306 keyword get_kv (); // also parse value for later use 379 // parse next line
380 void next ();
381 // skip the current key-value (usually fetch next line, for
382 // multiline-fields, skips untilt he corresponding end-kw
383 void skip ();
307 384
385 //TODO: remove, deprecated
386 keyword get_kv ()
387 {
388 next ();
389 return kw;
390 }
391
308 const char *get_str () { return last_value; } // may be 0 392 char *get_str () { return value; } // may be 0
309 393
310 void get (shstr &sh) const; 394 void get (shstr &sh) const;
311 void get_ornull (shstr &sh) const { sh = last_value; } 395 void get_ornull (shstr &sh) const { sh = value; }
312 void get_ml (keyword kend, shstr &sh); 396 void get_ml (keyword kend, shstr &sh);
313 397
314 sint32 get_sint32 () const; 398 sint32 get_sint32 () const;
315 sint64 get_sint64 () const; 399 sint64 get_sint64 () const;
316 double get_double () const; 400 double get_double () const;
317 401
318 void get (float &v) { v = get_double (); } 402 void get (float &v) { v = get_double (); }
319 void get (double &v) { v = get_double (); } 403 void get (double &v) { v = get_double (); }
320 404
405 void get (bool &i) { i = get_sint32 (); }
321 void get (sint8 &i) { i = get_sint32 (); } 406 void get (sint8 &i) { i = get_sint32 (); }
322 void get (uint8 &i) { i = get_sint32 (); } 407 void get (uint8 &i) { i = get_sint32 (); }
323 void get (sint16 &i) { i = get_sint32 (); } 408 void get (sint16 &i) { i = get_sint32 (); }
324 void get (uint16 &i) { i = get_sint32 (); } 409 void get (uint16 &i) { i = get_sint32 (); }
325 void get (sint32 &i) { i = get_sint32 (); } 410 void get (sint32 &i) { i = get_sint32 (); }
326 411
327 void get (uint32 &i) { i = get_sint64 (); } 412 void get (uint32 &i) { i = get_sint64 (); }
328 void get (sint64 &i) { i = get_sint64 (); } 413 void get (sint64 &i) { i = get_sint64 (); }
329};
330 414
415 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
416};
417
418//TODO: remove
331char *fgets (char *s, int n, object_thawer &thawer); 419char *fgets (char *s, int n, object_thawer &thawer);
420
421//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
422
423struct coroapi {
424 static struct CoroAPI *GCoroAPI;
425
426 static int nready () { return CORO_NREADY; }
427 static int cede () { return CORO_CEDE ; }
428
429 static double (*time)();
430 static double next_cede;
431 static int cede_counter;
432
433 static void do_cede_every ();
434 static void do_cede_to_tick ();
435 static void do_cede_to_tick_every ();
436
437 static void cede_every (int count)
438 {
439 if (++cede_counter >= count)
440 do_cede_every ();
441 }
442
443 static void cede_to_tick ()
444 {
445 if (time () >= next_cede)
446 do_cede_to_tick ();
447 }
448
449 static void cede_to_tick_every (int count)
450 {
451 if (++cede_counter >= count)
452 cede_to_tick ();
453 }
454
455 static void wait_for_tick ();
456 static void wait_for_tick_begin ();
457};
332 458
333struct watcher_base 459struct watcher_base
334{ 460{
335 static struct EventAPI *GEventAPI; 461 static struct EventAPI *GEventAPI;
336}; 462};
… …
355 481
356private: 482private:
357 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private 483 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
358}; 484};
359 485
486struct iw : watcher<pe_idle>, callback<void (iw &)>
487{
488 template<class O, class M>
489 iw (O object, M method)
490 : callback<void (iw &)> (object, method)
491 {
492 alloc ();
493 }
494
495private:
496 void alloc ();
497};
498
360struct iow : watcher<pe_io>, callback<void (iow &, int)> 499struct iow : watcher<pe_io>, callback<void (iow &, int)>
361{ 500{
362 template<class O, class M> 501 template<class O, class M>
363 iow (O object, M method) 502 iow (O object, M method)
364 : callback<void (iow &, int)> (object, method) 503 : callback<void (iow &, int)> (object, method)
365 { 504 {
366 alloc (); 505 alloc ();
367 } 506 }
368 507
369 iow &fd (int fd); 508 void fd (int fd);
370 int poll (); 509 int poll ();
371 iow &poll (int events); 510 void poll (int events);
372 511
373private: 512private:
374 void alloc (); 513 void alloc ();
375}; 514};
376 515

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