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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.4 by root, Fri Aug 25 15:21:56 2006 UTC vs.
Revision 1.43 by root, Sat Dec 30 15:07:59 2006 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// could have used templates, but a more traditional C api 7#include <cstdio>
8// uses more explicit typing which is ok for this purpose.
9enum data_type {
10 DT_END, // no further arguments
11 DT_INT,
12 DT_LONG,
13 DT_DOUBLE,
14 DT_STRING, // 0-terminated string
15 DT_DATA, // string + length
16 DT_OBJECT,
17 DT_MAP,
18 DT_PLAYER,
19 DT_ARCH,
20 DT_PARTY,
21 DT_REGION,
22};
23 8
9using namespace std;
10
11#include <EXTERN.h>
12#include <perl.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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
24
25// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
26#undef localtime
27#undef srand48
28#undef drand48
29#undef srandom
30#undef readdir
31#undef getprotobyname
32#undef gethostbyname
33#undef ctime
34#undef strerror
35
36// same here, massive symbol spamming
37#undef do_open
38#undef do_close
39#undef ref
40
41// perl bug #40256: perl does overwrite those with reentrant versions
42// but does not initialise their state structures.
43#undef random
44#undef crypt
45
46//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
47
48// some macros to simplify perl in-calls
49
50#define CHECK_ERROR \
51 if (SvTRUE (ERRSV)) \
52 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
53
54#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
55#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
56#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
57#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN;
58#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
59
60//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
61
62void cfperl_init ();
63void cfperl_main ();
64
65//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
66
67// virtual server time, excluding time jumps and lag
68extern double runtime;
69
24enum event_klass { 70enum event_klass
71{
72 KLASS_NONE,
25 KLASS_GLOBAL, 73 KLASS_GLOBAL,
74 KLASS_ATTACHABLE,
75 KLASS_CLIENT,
26 KLASS_PLAYER, 76 KLASS_PLAYER,
27 KLASS_OBJECT, 77 KLASS_OBJECT,
28 KLASS_MAP, 78 KLASS_MAP,
79 KLASS_COMMAND,
29}; 80};
30 81
31enum event_type { 82enum event_type
83{
32# define def(klass,name) EV_ ## klass ## name, 84# define def(klass,name) EVENT_ ## klass ## _ ## name,
33# include "eventinc.h" 85# include "eventinc.h"
34# undef def 86# undef def
35 NUM_EVENT_TYPES 87 NUM_EVENT_TYPES
36}; 88};
37 89
90#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
38#define ARG_INT(v) DT_INT , static_cast<int> (v) 91#define ARG_INT(v) DT_INT , static_cast<int> (v)
39#define ARG_LONG(v) DT_LONG , static_cast<long> (v) 92#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
40#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 93#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
41#define ARG_STRING(v) DT_STRING, static_cast<char *> (v) 94#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
42#define ARG_DATA(s,l) DT_DATA , static_cast<void *> (s), (l) 95#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
43#define ARG_OBJECT(o) DT_OBJECT, static_cast<struct object *> (o) 96#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
44#define ARG_MAP(o) DT_MAP , static_cast<struct mapstruct *> (o) 97#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
45#define ARG_PLAYER(o) DT_PLAYER, static_cast<struct pl *> (o) 98#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
46#define ARG_ARCH(o) DT_ARCH , static_cast<struct archetype *> (o) 99#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
100#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
47#define ARG_PARTY(o) DT_PARTY , static_cast<struct party *> (o) 101#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
48#define ARG_REGION(o) DT_REGION, static_cast<struct region *> (o) 102#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
49 103
50// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 104// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
51 105
52// all these return true when the normal event processing should be skipped (if any) 106// all these return true when the normal event processing should be skipped (if any)
53#define INVOKE(klass, event, ...) cfperl_invoke (EV_ ## klass ## event, ## __VA_ARGS__, DT_END) 107#define INVOKE_GLOBAL(event, ...) gbl_ev.invoke (EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__, DT_END)
108#define INVOKE_ATTACHABLE(event, obj, ...) (obj)->invoke (EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__, DT_END)
109#define INVOKE_OBJECT(event, obj, ...) (obj)->invoke (EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__, DT_END)
110#define INVOKE_CLIENT(event, obj, ...) (obj)->invoke (EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__, DT_END)
111#define INVOKE_PLAYER(event, obj, ...) (obj)->invoke (EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__, DT_END)
112#define INVOKE_MAP(event, obj, ...) (obj)->invoke (EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__, DT_END)
54 113
55#define INVOKE_GLOBAL(event, ...) INVOKE (GLOBAL, event, ## __VA_ARGS__) 114//TODO should index into @result
56#define INVOKE_OBJECT(event, op, ...) INVOKE (OBJECT, event, ARG_OBJECT (op), ## __VA_ARGS__) 115#define RESULT(idx,type) cfperl_result_ ## type (idx)
57#define INVOKE_PLAYER(event, pl, ...) INVOKE (PLAYER, event, ARG_PLAYER (pl), ## __VA_ARGS__) 116#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
58#define INVOKE_MAP(event, map, ...) INVOKE (MAP , event, ARG_MAP (map) , ## __VA_ARGS__) 117#define RESULT_INT(idx) RESULT(idx, INT)
59 118
60bool cfperl_invoke (event_type event, ...); 119double cfperl_result_DOUBLE (int idx);
61void cfperl_free_ob (object *op); 120int cfperl_result_INT (int idx);
62 121
63void cfperl_init (); 122//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
64void cfperl_main ();
65 123
124struct attachable
125{
126 static MGVTBL vtbl;
127
128 static unordered_vector<attachable *> mortals;
129 static void check_mortals ();
130
131 enum {
132 F_DESTROYED = 0x01,
133 F_BORROWED = 0x02,
134 };
135
136 // object is delete'd after the refcount reaches 0
137 mutable int refcnt;
138 int flags;
139
140 void refcnt_inc () const { ++refcnt; }
141 void refcnt_dec () const { --refcnt; }
142
143 // check wether the object has died and destroy
144 void refcnt_chk () { if (refcnt <= 0) do_check (); }
145
146 // destroy the object unless it was already destroyed
147 // this politely asks everybody interested the reduce
148 // the refcount to 0 as soon as possible.
149 void destroy ();
150
151 // return wether an object was destroyed already
152 bool destroyed () const { return flags & F_DESTROYED; }
153
154 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
155
156#if 0
157private:
158 static refcounted *rc_first;
159 refcounted *rc_next;
66#endif 160#endif
67 161
162 HV *self; // CF+ perl self
163 AV *cb; // CF+ callbacks
164 shstr attach; // generic extension attachment information
165
166 void optimise (); // possibly save some memory by destroying unneeded data
167
168 attachable ()
169 : flags (0), refcnt (0), self (0), cb (0), attach (0)
170 {
171 }
172
173 attachable (const attachable &src)
174 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
175 {
176 }
177
178 virtual ~attachable ();
179
180 attachable &operator =(const attachable &src);
181
182 bool invoke (event_type event, ...);
183 void instantiate ();
184 void reattach ();
185
186protected:
187 // do the real refcount checking work
188 void do_check ();
189
190 // the method that does the real destroy work
191 virtual void do_destroy ();
192};
193
194// the global object is a pseudo object that cares for the global events
195struct global : attachable
196{
197 void gather_callbacks (AV *&callbacks, event_type event) const;
198};
199
200extern struct global gbl_ev;
201
202//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
203
204struct object_freezer : dynbuf
205{
206 AV *av;
207
208 object_freezer ();
209 ~object_freezer ();
210
211 void put (attachable *ext);
212
213 // used only for user-defined key-value pairs
214 void put (const shstr &k, const shstr &v)
215 {
216 add (k);
217
218 if (v)
219 add (' '), add (v);
220
221 add ('\n');
222 }
223
224 //TODO//temporary, used only for saving body locations
225 void put (const char *k, int v)
226 {
227 add (k);
228 add (' ');
229 add (sint32 (v));
230 add ('\n');
231 }
232
233 template<typename T>
234 void put_string (keyword k, const T &v)
235 {
236 int klen = keyword_len [k];
237 int vlen = v ? strlen (v) + 1 : 0;
238
239 char *p = (char *)alloc (klen + vlen + 1);
240
241 memcpy (p, keyword_str [k], klen); p += klen;
242
243 if (v)
244 {
245 *p++ = ' '; vlen--;
246 memcpy (p, v, vlen); p += vlen;
247 }
248
249 *p = '\n';
250 }
251
252 void put (keyword k, const char *v)
253 {
254 put_string (k, v);
255 }
256
257 void put (keyword k, const shstr &v)
258 {
259 put_string (k, v);
260 }
261
262 void put (keyword k, double v)
263 {
264 char buf [128];
265
266 snprintf (buf, 128, "%.7g", v);
267
268 put (k, (const char *)buf);
269 }
270
271 void put_(keyword k, sint64 v)
272 {
273 add (keyword_str [k], keyword_len [k]);
274 add (' ');
275 add (v);
276 add ('\n');
277 }
278
279 void put_(keyword k, sint32 v)
280 {
281 add (keyword_str [k], keyword_len [k]);
282 add (' ');
283 add (v);
284 add ('\n');
285 }
286
287 void put (keyword kbeg, keyword kend, const shstr &v)
288 {
289 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
290
291 if (v)
292 {
293 add (v);
294 add ('\n');
295 }
296
297 add (keyword_str [kend], keyword_len [kend]); add ('\n');
298 }
299
300 void put (keyword k, float v) { put (k, (double)v); }
301 void put (keyword k, signed char v) { put_(k, (sint32)v); }
302 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
303 void put (keyword k, signed short v) { put_(k, (sint32)v); }
304 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
305 void put (keyword k, signed int v) { put_(k, (sint32)v); }
306 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
307 void put (keyword k, signed long v) { put_(k, (sint64)v); }
308 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
309 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
310 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
311
312 template<typename T>
313 void put (keyword k, const T *v)
314 {
315 if (v)
316 put (k, v->name);
317 else
318 put (k, (const char *)0);
319 }
320
321 template<typename T>
322 void put (keyword k, const refptr<T> &v)
323 {
324 put (k, (T *)v);
325 }
326
327 bool save (const char *filename);
328 char *as_string (); // like strdup
329
330 operator bool () { return !!av; }
331};
332
333// compatibility support, should be removed when no longer needed
334int fprintf (object_freezer &freezer, const char *format, ...);
335int fputs (const char *s, object_freezer &freezer);
336
337struct object_thawer
338{
339 SV *text; // text part
340 AV *av; // perl part
341 char *line; // current beginning of line
342 char *last_keyword, *last_value;
343
344 operator bool () { return !!text; }
345
346 object_thawer (const char *filename = 0);
347 object_thawer (const char *data, AV *perlav);
348 ~object_thawer ();
349
350 void get (attachable *obj, int oid);
351
352 keyword get_kv (); // also parse value for later use
353 void skip_kv (keyword kw);
354
355 const char *get_str () { return last_value; } // may be 0
356
357 void get (shstr &sh) const;
358 void get_ornull (shstr &sh) const { sh = last_value; }
359 void get_ml (keyword kend, shstr &sh);
360
361 sint32 get_sint32 () const;
362 sint64 get_sint64 () const;
363 double get_double () const;
364
365 void get (float &v) { v = get_double (); }
366 void get (double &v) { v = get_double (); }
367
368 void get (bool &i) { i = get_sint32 (); }
369 void get (sint8 &i) { i = get_sint32 (); }
370 void get (uint8 &i) { i = get_sint32 (); }
371 void get (sint16 &i) { i = get_sint32 (); }
372 void get (uint16 &i) { i = get_sint32 (); }
373 void get (sint32 &i) { i = get_sint32 (); }
374
375 void get (uint32 &i) { i = get_sint64 (); }
376 void get (sint64 &i) { i = get_sint64 (); }
377};
378
379char *fgets (char *s, int n, object_thawer &thawer);
380
381//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
382
383struct coroapi {
384 static struct CoroAPI *GCoroAPI;
385
386 static int nready () { return CORO_NREADY; }
387 static int cede () { return CORO_CEDE ; }
388};
389
390struct watcher_base
391{
392 static struct EventAPI *GEventAPI;
393};
394
395template<class base>
396struct watcher : watcher_base
397{
398 base *pe;
399
400 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
401 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
402 void now () { GEventAPI->now ((pe_watcher *)pe); }
403 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
404 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
405
406 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
407
408 ~watcher ()
409 {
410 cancel ();
411 }
412
413private:
414 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
415};
416
417struct iw : watcher<pe_idle>, callback<void (iw &)>
418{
419 template<class O, class M>
420 iw (O object, M method)
421 : callback<void (iw &)> (object, method)
422 {
423 alloc ();
424 }
425
426private:
427 void alloc ();
428};
429
430struct iow : watcher<pe_io>, callback<void (iow &, int)>
431{
432 template<class O, class M>
433 iow (O object, M method)
434 : callback<void (iow &, int)> (object, method)
435 {
436 alloc ();
437 }
438
439 void fd (int fd);
440 int poll ();
441 void poll (int events);
442
443private:
444 void alloc ();
445};
446
447#endif
448

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