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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.25 by root, Sun Sep 10 14:54:02 2006 UTC vs.
Revision 1.54 by root, Sun Feb 11 01:38:48 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<struct object *> (o) 98#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
58#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 99#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 100#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct 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<struct party *> (o) 103#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
62#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct 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)
78 120
79bool cfperl_invoke (event_type event, ...); 121double cfperl_result_DOUBLE (int idx);
80int cfperl_result_INT (int idx); 122int cfperl_result_INT (int idx);
81 123
124//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
125
126INTERFACE_CLASS (attachable)
82struct attachable_base 127struct attachable
83{ 128{
84 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_DEBUG_TRACE = 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
85 AV *cb; // CF+ perl self and callback 167 AV *cb; // CF+ callbacks
86 shstr attach; // generic extension attachment information 168 shstr attach; // generic extension attachment information
87 169
88 void clear (); // called when free'ing objects 170 void sever_self (); // sever this object from its self, if it has one.
89 void optimise (); // possibly save some memory by destroying unneeded data 171 void optimise (); // possibly save some memory by destroying unneeded data
90 void instantiate (data_type type, void *obj);
91 172
92 void attachable_clear ()
93 {
94 self = 0;
95 cb = 0;
96 attach = 0;
97 }
98
99 attachable_base () 173 attachable ()
174 : flags (0), refcnt (0), self (0), cb (0), attach (0)
100 { 175 {
101 attachable_clear ();
102 } 176 }
103 177
104 ~attachable_base ()
105 {
106 clear ();
107 }
108
109 attachable_base (const attachable_base &src) 178 attachable (const attachable &src)
110 : self (0), cb (0), attach (src.attach) 179 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
111 { 180 {
112 } 181 }
113 182
183 virtual ~attachable ();
184
114 attachable_base &operator = (const attachable_base &src) 185 attachable &operator =(const attachable &src);
115 {
116 clear ();
117 attach = src.attach;
118 return *this;
119 }
120};
121 186
122// objects attachable from perl (or any other extension) should include or 187 bool invoke (event_type event, ...);
123// derive using the curiously recurring template pattern, to avoid
124// virtual method calls etc.
125template<class subclass>
126struct attachable : attachable_base
127{
128 void instantiate () 188 MTH void instantiate ();
129 { 189 void reattach ();
130 if (attach) 190
131 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this)); 191protected:
132 } 192 // do the real refcount checking work
193 void do_check ();
194
195 // the method that does the real destroy work
196 virtual void do_destroy ();
133}; 197};
198
199// the global object is a pseudo object that cares for the global events
200struct global : attachable
201{
202 void gather_callbacks (AV *&callbacks, event_type event) const;
203};
204
205extern struct global gbl_ev;
206
207//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
134 208
135struct object_freezer : dynbuf 209struct object_freezer : dynbuf
136{ 210{
137 AV *av; 211 AV *av;
138 212
139 object_freezer (); 213 object_freezer ();
140 ~object_freezer (); 214 ~object_freezer ();
141 215
142 void put (attachable_base *ext); 216 void put (attachable *ext);
143 217
144 template<class subclass> 218 // used only for user-defined key-value pairs
145 void put (attachable<subclass> *obj)
146 {
147 put ((attachable_base *)obj);
148 }
149
150 //TODO//temporary
151 void put (const char *k, const char *v) 219 void put (const shstr &k, const shstr &v)
152 { 220 {
153 add (k); 221 add (k);
154 222
155 if (v) 223 if (v)
156 add (' '), add (v); 224 add (' '), add (v);
157 225
158 add ('\n'); 226 add ('\n');
159 } 227 }
160 228
161 //TODO//temporary 229 //TODO//temporary, used only for saving body locations
162 void put (const char *k, int v) 230 void put (const char *k, int v)
163 { 231 {
164 add (k); 232 add (k);
165 add (' '); 233 add (' ');
166 add (sint32 (v)); 234 add (sint32 (v));
167 add ('\n'); 235 add ('\n');
168 } 236 }
169 237
170#if 1 238 template<typename T>
171 void put (keyword k, const char *v) 239 void put_string (keyword k, const T &v)
172 { 240 {
173 int klen = keyword_len [k]; 241 int klen = keyword_len [k];
174 int vlen = v ? strlen (v) + 1 : 0; 242 int vlen = v ? strlen (v) + 1 : 0;
175 243
176 char *p = (char *)alloc (klen + vlen + 1); 244 char *p = (char *)alloc (klen + vlen + 1);
177 245
178 memcpy (p, keyword_str [k], klen); p += klen; 246 memcpy (p, keyword_str [k], klen); p += klen;
179 247
180 if (v) 248 if (v)
181 { 249 {
182 *p++ = ' '; vlen--; //TODO//cf compatibility always add space 250 *p++ = ' '; vlen--;
183 memcpy (p, v, vlen); p += vlen; 251 memcpy (p, v, vlen); p += vlen;
184 } 252 }
185 253
186 *p = '\n'; 254 *p = '\n';
187 } 255 }
188#endif
189 256
190#if 0 257 void put (keyword k, const char *v = 0)
258 {
259 put_string (k, v);
260 }
261
191 void put (keyword k, const shstr &v) 262 void put (keyword k, const shstr &v)
192 { 263 {
193 int klen = keyword_len [k]; 264 put_string (k, v);
194 int vlen = v ? v.length () + 1 : 0;
195
196 char *p = (char *)alloc (klen + vlen + 1);
197
198 memcpy (p, keyword_str [k], klen); p += klen;
199
200 if (v)
201 {
202 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
203 memcpy (p, v, vlen); p += vlen;
204 }
205
206 *p = '\n';
207 } 265 }
208#endif
209 266
210 void put (keyword k, double v) 267 void put (keyword k, double v)
211 { 268 {
212 char buf [128]; 269 char buf [128];
213 270
256 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 313 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
257 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 314 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
258 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 315 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
259 316
260 template<typename T> 317 template<typename T>
261 void put (keyword k, T *v) 318 void put (keyword k, const T *v)
262 { 319 {
263 if (v) 320 if (v)
264 put (k, v->name); 321 put (k, v->name);
265 else 322 else
266 put (k, (const char *)0); 323 put (k, (const char *)0);
267 } 324 }
268 325
326 template<typename T>
327 void put (keyword k, const refptr<T> &v)
328 {
329 put (k, (T *)v);
330 }
331
269 bool save (const char *filename); 332 bool save (const char *path);
333 char *as_string (); // like strdup
270 334
271 operator bool () { return !!av; } 335 operator bool () { return !!av; }
272}; 336};
273 337
274// compatibility support, should be removed when no longer needed 338// compatibility support, should be removed when no longer needed
277 341
278struct object_thawer 342struct object_thawer
279{ 343{
280 SV *text; // text part 344 SV *text; // text part
281 AV *av; // perl part 345 AV *av; // perl part
346 int linenum;
282 char *line; // current beginning of line 347 char *line; // current beginning of line
283 char *last_value; 348 char *last_keyword, *last_value;
349 const char *name;
284 350
285 operator bool () { return !!text; } 351 operator bool () { return !!text; }
286 352
287 object_thawer (const char *filename = 0); 353 object_thawer (const char *path = 0);
354 object_thawer (const char *data, AV *perlav);
288 ~object_thawer (); 355 ~object_thawer ();
289 356
290 void get (data_type type, void *obj, attachable_base *ext, int oid);
291
292 template<class subclass>
293 void get (attachable<subclass> *obj, int oid) 357 void get (attachable *obj, int oid);
294 {
295 if (av)
296 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
297 }
298 358
299 keyword get_kv (); // also parse value for later use 359 keyword get_kv (); // also parse value for later use
360 void skip_kv (keyword kw);
300 361
301 const char *get_str () { return last_value; } // may be 0 362 const char *get_str () { return last_value; } // may be 0
302 363
303 void get (shstr &sh) const; 364 void get (shstr &sh) const;
304 void get_ornull (shstr &sh) const { sh = last_value; } 365 void get_ornull (shstr &sh) const { sh = last_value; }
306 367
307 sint32 get_sint32 () const; 368 sint32 get_sint32 () const;
308 sint64 get_sint64 () const; 369 sint64 get_sint64 () const;
309 double get_double () const; 370 double get_double () const;
310 371
311 void get (float &v) { v = get_double (); } 372 void get (float &v) { v = get_double (); }
312 void get (double &v) { v = get_double (); } 373 void get (double &v) { v = get_double (); }
313 374
375 void get (bool &i) { i = get_sint32 (); }
314 void get (sint8 &i) { i = get_sint32 (); } 376 void get (sint8 &i) { i = get_sint32 (); }
315 void get (uint8 &i) { i = get_sint32 (); } 377 void get (uint8 &i) { i = get_sint32 (); }
316 void get (sint16 &i) { i = get_sint32 (); } 378 void get (sint16 &i) { i = get_sint32 (); }
317 void get (uint16 &i) { i = get_sint32 (); } 379 void get (uint16 &i) { i = get_sint32 (); }
318 void get (sint32 &i) { i = get_sint32 (); } 380 void get (sint32 &i) { i = get_sint32 (); }
319 381
320 void get (uint32 &i) { i = get_sint64 (); } 382 void get (uint32 &i) { i = get_sint64 (); }
321 void get (sint64 &i) { i = get_sint64 (); } 383 void get (sint64 &i) { i = get_sint64 (); }
322};
323 384
385 bool parse_error (keyword kw, const char *type = 0, const char *name = 0, bool skip = true);
386};
387
388//TODO: remove
324char *fgets (char *s, int n, object_thawer &thawer); 389char *fgets (char *s, int n, object_thawer &thawer);
325 390
391//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
392
393struct coroapi {
394 static struct CoroAPI *GCoroAPI;
395
396 static int nready () { return CORO_NREADY; }
397 static int cede () { return CORO_CEDE ; }
398
399 static int cede_counter;
400
401 static void cede_every (int count)
402 {
403 if (++cede_counter >= count)
404 {
405 cede_counter = 0;
406
407 if (coroapi::nready ())
408 coroapi::cede ();
409 }
410 }
411};
412
413struct watcher_base
414{
415 static struct EventAPI *GEventAPI;
416};
417
418template<class base>
419struct watcher : watcher_base
420{
421 base *pe;
422
423 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
424 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
425 void now () { GEventAPI->now ((pe_watcher *)pe); }
426 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
427 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
428
429 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
430
431 ~watcher ()
432 {
433 cancel ();
434 }
435
436private:
437 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
438};
439
440struct iw : watcher<pe_idle>, callback<void (iw &)>
441{
442 template<class O, class M>
443 iw (O object, M method)
444 : callback<void (iw &)> (object, method)
445 {
446 alloc ();
447 }
448
449private:
450 void alloc ();
451};
452
453struct iow : watcher<pe_io>, callback<void (iow &, int)>
454{
455 template<class O, class M>
456 iow (O object, M method)
457 : callback<void (iow &, int)> (object, method)
458 {
459 alloc ();
460 }
461
462 void fd (int fd);
463 int poll ();
464 void poll (int events);
465
466private:
467 void alloc ();
468};
469
326#endif 470#endif
327 471

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