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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 1.48 by root, Sun Jan 7 18:01:09 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 ();
33 65
66//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
67
68// virtual server time, excluding time jumps and lag
69extern double runtime;
70
34enum event_klass 71enum event_klass
35{ 72{
36 KLASS_NONE, 73 KLASS_NONE,
37 KLASS_GLOBAL, 74 KLASS_GLOBAL,
75 KLASS_ATTACHABLE,
76 KLASS_CLIENT,
38 KLASS_PLAYER, 77 KLASS_PLAYER,
39 KLASS_OBJECT, 78 KLASS_OBJECT,
40 KLASS_MAP, 79 KLASS_MAP,
80 KLASS_COMMAND,
41}; 81};
42 82
43enum event_type 83enum event_type
44{ 84{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 85# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 86# include "eventinc.h"
47# undef def 87# undef def
48 NUM_EVENT_TYPES 88 NUM_EVENT_TYPES
49}; 89};
50 90
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 91#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
52#define ARG_INT(v) DT_INT , static_cast<int> (v) 92#define ARG_INT(v) DT_INT , static_cast<int> (v)
53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 93#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 94#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 95#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) 96#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) 97#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
58#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) 98#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) 99#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) 100#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
101#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) 102#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
62#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) 103#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
63 104
64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 105// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
65 106
66// all these return true when the normal event processing should be skipped (if any) 107// 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__) 108#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__) 109#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__) 110#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__) 111#define INVOKE_CLIENT(event, obj, ...) (obj)->invoke (EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__, DT_END)
112#define INVOKE_PLAYER(event, obj, ...) (obj)->invoke (EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__, DT_END)
113#define INVOKE_MAP(event, obj, ...) (obj)->invoke (EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__, DT_END)
74 114
75//TODO should index into @result 115//TODO should index into @result
76#define RESULT(idx,type) cfperl_result_ ## type (idx) 116#define RESULT(idx,type) cfperl_result_ ## type (idx)
117#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
77#define RESULT_INT(idx) RESULT(idx, INT) 118#define RESULT_INT(idx) RESULT(idx, INT)
78#define RESULT_MAP(idx) RESULT(idx, MAP)
79 119
80bool cfperl_invoke (event_type event, ...); 120double cfperl_result_DOUBLE (int idx);
81int cfperl_result_INT (int idx); 121int cfperl_result_INT (int idx);
82int cfperl_result_MAP (int idx);
83 122
123//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
124
125INTERFACE_CLASS (attachable)
84struct attachable_base 126struct attachable
85{ 127{
86 SV *self; 128 static MGVTBL vtbl;
129
130 static unordered_vector<attachable *> mortals;
131 MTH static void check_mortals ();
132
133 enum {
134 F_DESTROYED = 0x01,
135 F_BORROWED = 0x02,
136 };
137
138 // object is delete'd after the refcount reaches 0
139 mutable int ACC (RW, refcnt);
140 int ACC (RW, flags);
141
142 MTH void refcnt_inc () const { ++refcnt; }
143 MTH void refcnt_dec () const { --refcnt; }
144
145 // check wether the object has died and destroy
146 MTH void refcnt_chk () { if (refcnt <= 0) do_check (); }
147
148 // destroy the object unless it was already destroyed
149 // this politely asks everybody interested the reduce
150 // the refcount to 0 as soon as possible.
151 MTH void destroy ();
152
153 // return wether an object was destroyed already
154 MTH bool destroyed () const { return flags & F_DESTROYED; }
155
156 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
157
158#if 0
159private:
160 static refcounted *rc_first;
161 refcounted *rc_next;
162#endif
163
164 HV *self; // CF+ perl self
87 AV *cb; // CF+ perl self and callback 165 AV *cb; // CF+ callbacks
88 shstr attach; // generic extension attachment information 166 shstr attach; // generic extension attachment information
89 167
90 void clear (); // called when free'ing objects
91 void optimise (); // possibly save some memory by destroying unneeded data 168 void optimise (); // possibly save some memory by destroying unneeded data
92 void instantiate (data_type type, void *obj);
93 169
94 void attachable_clear ()
95 {
96 self = 0;
97 cb = 0;
98 attach = 0;
99 }
100
101 attachable_base () 170 attachable ()
171 : flags (0), refcnt (0), self (0), cb (0), attach (0)
102 { 172 {
103 attachable_clear ();
104 } 173 }
105 174
106 ~attachable_base ()
107 {
108 clear ();
109 }
110
111 attachable_base (const attachable_base &src) 175 attachable (const attachable &src)
112 : self (0), cb (0), attach (src.attach) 176 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
113 { 177 {
114 } 178 }
115 179
180 virtual ~attachable ();
181
116 attachable_base &operator = (const attachable_base &src) 182 attachable &operator =(const attachable &src);
117 {
118 clear ();
119 attach = src.attach;
120 return *this;
121 }
122};
123 183
124// objects attachable from perl (or any other extension) should include or 184 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 () 185 MTH void instantiate ();
131 { 186 void reattach ();
132 if (attach) 187
133 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this)); 188protected:
134 } 189 // do the real refcount checking work
190 void do_check ();
191
192 // the method that does the real destroy work
193 virtual void do_destroy ();
135}; 194};
195
196// the global object is a pseudo object that cares for the global events
197struct global : attachable
198{
199 void gather_callbacks (AV *&callbacks, event_type event) const;
200};
201
202extern struct global gbl_ev;
203
204//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
136 205
137struct object_freezer : dynbuf 206struct object_freezer : dynbuf
138{ 207{
139 AV *av; 208 AV *av;
140 209
141 object_freezer (); 210 object_freezer ();
142 ~object_freezer (); 211 ~object_freezer ();
143 212
144 void put (attachable_base *ext); 213 void put (attachable *ext);
145 214
146 template<class subclass> 215 // 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) 216 void put (const shstr &k, const shstr &v)
154 { 217 {
155 add (k); 218 add (k);
156 219
157 if (v) 220 if (v)
158 add (' '), add (v); 221 add (' '), add (v);
159 222
160 add ('\n'); 223 add ('\n');
161 } 224 }
162 225
163 //TODO//temporary 226 //TODO//temporary, used only for saving body locations
164 void put (const char *k, int v) 227 void put (const char *k, int v)
165 { 228 {
166 add (k); 229 add (k);
167 add (' '); 230 add (' ');
168 add (sint32 (v)); 231 add (sint32 (v));
169 add ('\n'); 232 add ('\n');
170 } 233 }
171 234
172#if 1 235 template<typename T>
173 void put (keyword k, const char *v) 236 void put_string (keyword k, const T &v)
174 { 237 {
175 int klen = keyword_len [k]; 238 int klen = keyword_len [k];
176 int vlen = v ? strlen (v) + 1 : 0; 239 int vlen = v ? strlen (v) + 1 : 0;
177 240
178 char *p = (char *)alloc (klen + vlen + 1); 241 char *p = (char *)alloc (klen + vlen + 1);
179 242
180 memcpy (p, keyword_str [k], klen); p += klen; 243 memcpy (p, keyword_str [k], klen); p += klen;
181 244
182 if (v) 245 if (v)
183 { 246 {
184 *p++ = ' '; vlen--; //TODO//cf compatibility always add space 247 *p++ = ' '; vlen--;
185 memcpy (p, v, vlen); p += vlen; 248 memcpy (p, v, vlen); p += vlen;
186 } 249 }
187 250
188 *p = '\n'; 251 *p = '\n';
189 } 252 }
190#endif
191 253
192#if 0 254 void put (keyword k, const char *v = 0)
255 {
256 put_string (k, v);
257 }
258
193 void put (keyword k, const shstr &v) 259 void put (keyword k, const shstr &v)
194 { 260 {
195 int klen = keyword_len [k]; 261 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 } 262 }
210#endif
211 263
212 void put (keyword k, double v) 264 void put (keyword k, double v)
213 { 265 {
214 char buf [128]; 266 char buf [128];
215 267
258 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 310 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
259 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 311 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); } 312 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
261 313
262 template<typename T> 314 template<typename T>
263 void put (keyword k, T *v) 315 void put (keyword k, const T *v)
264 { 316 {
265 if (v) 317 if (v)
266 put (k, v->name); 318 put (k, v->name);
267 else 319 else
268 put (k, (const char *)0); 320 put (k, (const char *)0);
269 } 321 }
270 322
323 template<typename T>
324 void put (keyword k, const refptr<T> &v)
325 {
326 put (k, (T *)v);
327 }
328
271 bool save (const char *filename); 329 bool save (const char *path);
330 char *as_string (); // like strdup
272 331
273 operator bool () { return !!av; } 332 operator bool () { return !!av; }
274}; 333};
275 334
276// compatibility support, should be removed when no longer needed 335// compatibility support, should be removed when no longer needed
280struct object_thawer 339struct object_thawer
281{ 340{
282 SV *text; // text part 341 SV *text; // text part
283 AV *av; // perl part 342 AV *av; // perl part
284 char *line; // current beginning of line 343 char *line; // current beginning of line
285 char *last_value; 344 char *last_keyword, *last_value;
345 const char *name;
286 346
287 operator bool () { return !!text; } 347 operator bool () { return !!text; }
288 348
289 object_thawer (const char *filename = 0); 349 object_thawer (const char *path = 0);
350 object_thawer (const char *data, AV *perlav);
290 ~object_thawer (); 351 ~object_thawer ();
291 352
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) 353 void get (attachable *obj, int oid);
296 {
297 if (av)
298 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
299 }
300 354
301 keyword get_kv (); // also parse value for later use 355 keyword get_kv (); // also parse value for later use
356 void skip_kv (keyword kw);
302 357
303 const char *get_str () { return last_value; } // may be 0 358 const char *get_str () { return last_value; } // may be 0
304 359
305 void get (shstr &sh) const; 360 void get (shstr &sh) const;
306 void get_ornull (shstr &sh) const { sh = last_value; } 361 void get_ornull (shstr &sh) const { sh = last_value; }
308 363
309 sint32 get_sint32 () const; 364 sint32 get_sint32 () const;
310 sint64 get_sint64 () const; 365 sint64 get_sint64 () const;
311 double get_double () const; 366 double get_double () const;
312 367
313 void get (float &v) { v = get_double (); } 368 void get (float &v) { v = get_double (); }
314 void get (double &v) { v = get_double (); } 369 void get (double &v) { v = get_double (); }
315 370
371 void get (bool &i) { i = get_sint32 (); }
316 void get (sint8 &i) { i = get_sint32 (); } 372 void get (sint8 &i) { i = get_sint32 (); }
317 void get (uint8 &i) { i = get_sint32 (); } 373 void get (uint8 &i) { i = get_sint32 (); }
318 void get (sint16 &i) { i = get_sint32 (); } 374 void get (sint16 &i) { i = get_sint32 (); }
319 void get (uint16 &i) { i = get_sint32 (); } 375 void get (uint16 &i) { i = get_sint32 (); }
320 void get (sint32 &i) { i = get_sint32 (); } 376 void get (sint32 &i) { i = get_sint32 (); }
323 void get (sint64 &i) { i = get_sint64 (); } 379 void get (sint64 &i) { i = get_sint64 (); }
324}; 380};
325 381
326char *fgets (char *s, int n, object_thawer &thawer); 382char *fgets (char *s, int n, object_thawer &thawer);
327 383
384//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
385
386struct coroapi {
387 static struct CoroAPI *GCoroAPI;
388
389 static int nready () { return CORO_NREADY; }
390 static int cede () { return CORO_CEDE ; }
391
392 static int cede_counter;
393
394 static void cede_every (int count)
395 {
396 if (++cede_counter >= count)
397 {
398 cede_counter = 0;
399
400 if (coroapi::nready ())
401 coroapi::cede ();
402 }
403 }
404};
405
406struct watcher_base
407{
408 static struct EventAPI *GEventAPI;
409};
410
411template<class base>
412struct watcher : watcher_base
413{
414 base *pe;
415
416 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
417 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
418 void now () { GEventAPI->now ((pe_watcher *)pe); }
419 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
420 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
421
422 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
423
424 ~watcher ()
425 {
426 cancel ();
427 }
428
429private:
430 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
431};
432
433struct iw : watcher<pe_idle>, callback<void (iw &)>
434{
435 template<class O, class M>
436 iw (O object, M method)
437 : callback<void (iw &)> (object, method)
438 {
439 alloc ();
440 }
441
442private:
443 void alloc ();
444};
445
446struct iow : watcher<pe_io>, callback<void (iow &, int)>
447{
448 template<class O, class M>
449 iow (O object, M method)
450 : callback<void (iow &, int)> (object, method)
451 {
452 alloc ();
453 }
454
455 void fd (int fd);
456 int poll ();
457 void poll (int events);
458
459private:
460 void alloc ();
461};
462
328#endif 463#endif
329 464

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