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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.27 by root, Sun Sep 17 18:19:19 2006 UTC vs.
Revision 1.50 by root, Tue Jan 9 21:32:42 2007 UTC

9using namespace std; 9using namespace std;
10 10
11#include <EXTERN.h> 11#include <EXTERN.h>
12#include <perl.h> 12#include <perl.h>
13#include <XSUB.h> 13#include <XSUB.h>
14
15#include <EventAPI.h>
16#include <CoroAPI.h>
17
18#include "util.h"
19#include "keyword.h"
20#include "dynbuf.h"
21#include "callback.h"
22
23//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
14 24
15// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 25// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
16#undef localtime 26#undef localtime
17#undef srand48 27#undef srand48
18#undef drand48 28#undef drand48
21#undef getprotobyname 31#undef getprotobyname
22#undef gethostbyname 32#undef gethostbyname
23#undef ctime 33#undef ctime
24#undef strerror 34#undef strerror
25 35
36// same here, massive symbol spamming
37#undef do_open
38#undef do_close
39#undef ref
40#undef seed
41
26// perl bug #40256: perl does overwrite those with reentrant versions 42// perl bug #40256: perl does overwrite those with reentrant versions
27// but does not initialise their state structures. 43// but does not initialise their state structures.
28#undef random 44#undef random
29#undef crypt 45#undef crypt
30 46
47//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
48
49// some macros to simplify perl in-calls
50
51#define CHECK_ERROR \
52 if (SvTRUE (ERRSV)) \
53 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
54
55#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
56#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
57#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
58#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN;
59#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
60
61//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
62
31void cfperl_init (); 63void cfperl_init ();
32void cfperl_main (); 64void cfperl_main ();
65void cfperl_emergency_save ();
66
67//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
68
69// virtual server time, excluding time jumps and lag
70extern double runtime;
33 71
34enum event_klass 72enum event_klass
35{ 73{
36 KLASS_NONE, 74 KLASS_NONE,
37 KLASS_GLOBAL, 75 KLASS_GLOBAL,
76 KLASS_ATTACHABLE,
77 KLASS_CLIENT,
38 KLASS_PLAYER, 78 KLASS_PLAYER,
39 KLASS_OBJECT, 79 KLASS_OBJECT,
40 KLASS_MAP, 80 KLASS_MAP,
81 KLASS_COMMAND,
41}; 82};
42 83
43enum event_type 84enum event_type
44{ 85{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 86# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 87# include "eventinc.h"
47# undef def 88# undef def
48 NUM_EVENT_TYPES 89 NUM_EVENT_TYPES
49}; 90};
50 91
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 92#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
52#define ARG_INT(v) DT_INT , static_cast<int> (v) 93#define ARG_INT(v) DT_INT , static_cast<int> (v)
53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 94#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 95#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 96#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) 97#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
57#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o) 98#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
58#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) 99#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) 100#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) 101#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
102#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) 103#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
62#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) 104#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
63 105
64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 106// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
65 107
66// all these return true when the normal event processing should be skipped (if any) 108// 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__) 109#define INVOKE_GLOBAL(event, ...) gbl_ev.invoke (EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__, DT_END)
71#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) 110#define INVOKE_ATTACHABLE(event, obj, ...) (obj)->invoke (EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__, DT_END)
72#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 111#define INVOKE_OBJECT(event, obj, ...) (obj)->invoke (EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__, DT_END)
73#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 112#define INVOKE_CLIENT(event, obj, ...) (obj)->invoke (EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__, DT_END)
113#define INVOKE_PLAYER(event, obj, ...) (obj)->invoke (EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__, DT_END)
114#define INVOKE_MAP(event, obj, ...) (obj)->invoke (EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__, DT_END)
74 115
75//TODO should index into @result 116//TODO should index into @result
76#define RESULT(idx,type) cfperl_result_ ## type (idx) 117#define RESULT(idx,type) cfperl_result_ ## type (idx)
118#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
77#define RESULT_INT(idx) RESULT(idx, INT) 119#define RESULT_INT(idx) RESULT(idx, INT)
78#define RESULT_MAP(idx) RESULT(idx, MAP)
79 120
80bool cfperl_invoke (event_type event, ...); 121double cfperl_result_DOUBLE (int idx);
81int cfperl_result_INT (int idx); 122int cfperl_result_INT (int idx);
82int cfperl_result_MAP (int idx);
83 123
124//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
125
126INTERFACE_CLASS (attachable)
84struct attachable_base 127struct attachable
85{ 128{
86 SV *self; 129 static MGVTBL vtbl;
130
131 static unordered_vector<attachable *> mortals;
132 MTH static void check_mortals ();
133
134 enum {
135 F_DESTROYED = 0x01,
136 F_BORROWED = 0x02,
137 };
138
139 // object is delete'd after the refcount reaches 0
140 mutable int ACC (RW, refcnt);
141 int ACC (RW, flags);
142
143 MTH void refcnt_inc () const { ++refcnt; }
144 MTH void refcnt_dec () const { --refcnt; }
145
146 MTH int refcnt_cnt () const;
147 // check wether the object has died and destroy
148 MTH void refcnt_chk () { if (refcnt <= 0) do_check (); }
149
150 // destroy the object unless it was already destroyed
151 // this politely asks everybody interested the reduce
152 // the refcount to 0 as soon as possible.
153 MTH void destroy ();
154
155 // return wether an object was destroyed already
156 MTH bool destroyed () const { return flags & F_DESTROYED; }
157
158 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
159
160#if 0
161private:
162 static refcounted *rc_first;
163 refcounted *rc_next;
164#endif
165
166 HV *self; // CF+ perl self
87 AV *cb; // CF+ perl self and callback 167 AV *cb; // CF+ callbacks
88 shstr attach; // generic extension attachment information 168 shstr attach; // generic extension attachment information
89 169
90 void clear (); // called when free'ing objects
91 void optimise (); // possibly save some memory by destroying unneeded data 170 void optimise (); // possibly save some memory by destroying unneeded data
92 void instantiate (data_type type, void *obj);
93 171
94 void attachable_clear ()
95 {
96 self = 0;
97 cb = 0;
98 attach = 0;
99 }
100
101 attachable_base () 172 attachable ()
173 : flags (0), refcnt (0), self (0), cb (0), attach (0)
102 { 174 {
103 attachable_clear ();
104 } 175 }
105 176
106 ~attachable_base ()
107 {
108 clear ();
109 }
110
111 attachable_base (const attachable_base &src) 177 attachable (const attachable &src)
112 : self (0), cb (0), attach (src.attach) 178 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
113 { 179 {
114 } 180 }
115 181
182 virtual ~attachable ();
183
116 attachable_base &operator = (const attachable_base &src) 184 attachable &operator =(const attachable &src);
117 {
118 clear ();
119 attach = src.attach;
120 return *this;
121 }
122};
123 185
124// objects attachable from perl (or any other extension) should include or 186 bool invoke (event_type event, ...);
125// derive using the curiously recurring template pattern, to avoid
126// virtual method calls etc.
127template<class subclass>
128struct attachable : attachable_base
129{
130 void instantiate () 187 MTH void instantiate ();
131 { 188 void reattach ();
132 if (attach) 189
133 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this)); 190protected:
134 } 191 // do the real refcount checking work
192 void do_check ();
193
194 // the method that does the real destroy work
195 virtual void do_destroy ();
135}; 196};
197
198// the global object is a pseudo object that cares for the global events
199struct global : attachable
200{
201 void gather_callbacks (AV *&callbacks, event_type event) const;
202};
203
204extern struct global gbl_ev;
205
206//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
136 207
137struct object_freezer : dynbuf 208struct object_freezer : dynbuf
138{ 209{
139 AV *av; 210 AV *av;
140 211
141 object_freezer (); 212 object_freezer ();
142 ~object_freezer (); 213 ~object_freezer ();
143 214
144 void put (attachable_base *ext); 215 void put (attachable *ext);
145 216
146 template<class subclass> 217 // used only for user-defined key-value pairs
147 void put (attachable<subclass> *obj)
148 {
149 put ((attachable_base *)obj);
150 }
151
152 //TODO//temporary
153 void put (const char *k, const char *v) 218 void put (const shstr &k, const shstr &v)
154 { 219 {
155 add (k); 220 add (k);
156 221
157 if (v) 222 if (v)
158 add (' '), add (v); 223 add (' '), add (v);
159 224
160 add ('\n'); 225 add ('\n');
161 } 226 }
162 227
163 //TODO//temporary 228 //TODO//temporary, used only for saving body locations
164 void put (const char *k, int v) 229 void put (const char *k, int v)
165 { 230 {
166 add (k); 231 add (k);
167 add (' '); 232 add (' ');
168 add (sint32 (v)); 233 add (sint32 (v));
169 add ('\n'); 234 add ('\n');
170 } 235 }
171 236
172#if 1 237 template<typename T>
173 void put (keyword k, const char *v) 238 void put_string (keyword k, const T &v)
174 { 239 {
175 int klen = keyword_len [k]; 240 int klen = keyword_len [k];
176 int vlen = v ? strlen (v) + 1 : 0; 241 int vlen = v ? strlen (v) + 1 : 0;
177 242
178 char *p = (char *)alloc (klen + vlen + 1); 243 char *p = (char *)alloc (klen + vlen + 1);
179 244
180 memcpy (p, keyword_str [k], klen); p += klen; 245 memcpy (p, keyword_str [k], klen); p += klen;
181 246
182 if (v) 247 if (v)
183 { 248 {
184 *p++ = ' '; vlen--; //TODO//cf compatibility always add space 249 *p++ = ' '; vlen--;
185 memcpy (p, v, vlen); p += vlen; 250 memcpy (p, v, vlen); p += vlen;
186 } 251 }
187 252
188 *p = '\n'; 253 *p = '\n';
189 } 254 }
190#endif
191 255
192#if 0 256 void put (keyword k, const char *v = 0)
257 {
258 put_string (k, v);
259 }
260
193 void put (keyword k, const shstr &v) 261 void put (keyword k, const shstr &v)
194 { 262 {
195 int klen = keyword_len [k]; 263 put_string (k, v);
196 int vlen = v ? v.length () + 1 : 0;
197
198 char *p = (char *)alloc (klen + vlen + 1);
199
200 memcpy (p, keyword_str [k], klen); p += klen;
201
202 if (v)
203 {
204 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
205 memcpy (p, v, vlen); p += vlen;
206 }
207
208 *p = '\n';
209 } 264 }
210#endif
211 265
212 void put (keyword k, double v) 266 void put (keyword k, double v)
213 { 267 {
214 char buf [128]; 268 char buf [128];
215 269
258 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 312 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
259 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 313 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
260 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 314 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
261 315
262 template<typename T> 316 template<typename T>
263 void put (keyword k, T *v) 317 void put (keyword k, const T *v)
264 { 318 {
265 if (v) 319 if (v)
266 put (k, v->name); 320 put (k, v->name);
267 else 321 else
268 put (k, (const char *)0); 322 put (k, (const char *)0);
269 } 323 }
270 324
325 template<typename T>
326 void put (keyword k, const refptr<T> &v)
327 {
328 put (k, (T *)v);
329 }
330
271 bool save (const char *filename); 331 bool save (const char *path);
332 char *as_string (); // like strdup
272 333
273 operator bool () { return !!av; } 334 operator bool () { return !!av; }
274}; 335};
275 336
276// compatibility support, should be removed when no longer needed 337// compatibility support, should be removed when no longer needed
280struct object_thawer 341struct object_thawer
281{ 342{
282 SV *text; // text part 343 SV *text; // text part
283 AV *av; // perl part 344 AV *av; // perl part
284 char *line; // current beginning of line 345 char *line; // current beginning of line
285 char *last_value; 346 char *last_keyword, *last_value;
347 const char *name;
286 348
287 operator bool () { return !!text; } 349 operator bool () { return !!text; }
288 350
289 object_thawer (const char *filename = 0); 351 object_thawer (const char *path = 0);
352 object_thawer (const char *data, AV *perlav);
290 ~object_thawer (); 353 ~object_thawer ();
291 354
292 void get (data_type type, void *obj, attachable_base *ext, int oid);
293
294 template<class subclass>
295 void get (attachable<subclass> *obj, int oid) 355 void get (attachable *obj, int oid);
296 {
297 if (av)
298 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
299 }
300 356
301 keyword get_kv (); // also parse value for later use 357 keyword get_kv (); // also parse value for later use
358 void skip_kv (keyword kw);
302 359
303 const char *get_str () { return last_value; } // may be 0 360 const char *get_str () { return last_value; } // may be 0
304 361
305 void get (shstr &sh) const; 362 void get (shstr &sh) const;
306 void get_ornull (shstr &sh) const { sh = last_value; } 363 void get_ornull (shstr &sh) const { sh = last_value; }
308 365
309 sint32 get_sint32 () const; 366 sint32 get_sint32 () const;
310 sint64 get_sint64 () const; 367 sint64 get_sint64 () const;
311 double get_double () const; 368 double get_double () const;
312 369
313 void get (float &v) { v = get_double (); } 370 void get (float &v) { v = get_double (); }
314 void get (double &v) { v = get_double (); } 371 void get (double &v) { v = get_double (); }
315 372
373 void get (bool &i) { i = get_sint32 (); }
316 void get (sint8 &i) { i = get_sint32 (); } 374 void get (sint8 &i) { i = get_sint32 (); }
317 void get (uint8 &i) { i = get_sint32 (); } 375 void get (uint8 &i) { i = get_sint32 (); }
318 void get (sint16 &i) { i = get_sint32 (); } 376 void get (sint16 &i) { i = get_sint32 (); }
319 void get (uint16 &i) { i = get_sint32 (); } 377 void get (uint16 &i) { i = get_sint32 (); }
320 void get (sint32 &i) { i = get_sint32 (); } 378 void get (sint32 &i) { i = get_sint32 (); }
323 void get (sint64 &i) { i = get_sint64 (); } 381 void get (sint64 &i) { i = get_sint64 (); }
324}; 382};
325 383
326char *fgets (char *s, int n, object_thawer &thawer); 384char *fgets (char *s, int n, object_thawer &thawer);
327 385
386//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
387
388struct coroapi {
389 static struct CoroAPI *GCoroAPI;
390
391 static int nready () { return CORO_NREADY; }
392 static int cede () { return CORO_CEDE ; }
393
394 static int cede_counter;
395
396 static void cede_every (int count)
397 {
398 if (++cede_counter >= count)
399 {
400 cede_counter = 0;
401
402 if (coroapi::nready ())
403 coroapi::cede ();
404 }
405 }
406};
407
408struct watcher_base
409{
410 static struct EventAPI *GEventAPI;
411};
412
413template<class base>
414struct watcher : watcher_base
415{
416 base *pe;
417
418 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
419 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
420 void now () { GEventAPI->now ((pe_watcher *)pe); }
421 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
422 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
423
424 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
425
426 ~watcher ()
427 {
428 cancel ();
429 }
430
431private:
432 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
433};
434
435struct iw : watcher<pe_idle>, callback<void (iw &)>
436{
437 template<class O, class M>
438 iw (O object, M method)
439 : callback<void (iw &)> (object, method)
440 {
441 alloc ();
442 }
443
444private:
445 void alloc ();
446};
447
448struct iow : watcher<pe_io>, callback<void (iow &, int)>
449{
450 template<class O, class M>
451 iow (O object, M method)
452 : callback<void (iow &, int)> (object, method)
453 {
454 alloc ();
455 }
456
457 void fd (int fd);
458 int poll ();
459 void poll (int events);
460
461private:
462 void alloc ();
463};
464
328#endif 465#endif
329 466

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