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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.18 by root, Thu Aug 31 09:19:34 2006 UTC vs.
Revision 1.53 by root, Thu Feb 1 19:15:39 2007 UTC

… …
8 8
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 14
15#include <EventAPI.h>
16#include <CoroAPI.h>
17
18#include "util.h"
14#include "keyword.h" 19#include "keyword.h"
20#include "dynbuf.h"
21#include "callback.h"
22
23//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
15 24
16// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 25// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
17#undef localtime 26#undef localtime
18#undef srand48 27#undef srand48
19#undef drand48 28#undef drand48
… …
22#undef getprotobyname 31#undef getprotobyname
23#undef gethostbyname 32#undef gethostbyname
24#undef ctime 33#undef ctime
25#undef strerror 34#undef strerror
26 35
36// same here, massive symbol spamming
37#undef do_open
38#undef do_close
39#undef ref
40#undef seed
41
27// perl bug #40256: perl does overwrite those with reentrant versions 42// perl bug #40256: perl does overwrite those with reentrant versions
28// but does not initialise their state structures. 43// but does not initialise their state structures.
29#undef random 44#undef random
30#undef crypt 45#undef crypt
31 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
32void cfperl_init (); 63void cfperl_init ();
33void cfperl_boot ();
34void cfperl_main (); 64void cfperl_main ();
65void cfperl_emergency_save ();
66
67//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
68
69// virtual server time, excluding time jumps and lag
70extern double runtime;
35 71
36enum event_klass 72enum event_klass
37{ 73{
38 KLASS_NONE, 74 KLASS_NONE,
39 KLASS_GLOBAL, 75 KLASS_GLOBAL,
76 KLASS_ATTACHABLE,
77 KLASS_CLIENT,
40 KLASS_PLAYER, 78 KLASS_PLAYER,
41 KLASS_OBJECT, 79 KLASS_OBJECT,
42 KLASS_MAP, 80 KLASS_MAP,
81 KLASS_COMMAND,
43}; 82};
44 83
45enum event_type 84enum event_type
46{ 85{
47# define def(klass,name) EVENT_ ## klass ## _ ## name, 86# define def(klass,name) EVENT_ ## klass ## _ ## name,
48# include "eventinc.h" 87# include "eventinc.h"
49# undef def 88# undef def
50 NUM_EVENT_TYPES 89 NUM_EVENT_TYPES
51}; 90};
52 91
53#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 92#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
54#define ARG_INT(v) DT_INT , static_cast<int> (v) 93#define ARG_INT(v) DT_INT , static_cast<int> (v)
55#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 94#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
56#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 95#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
57#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 96#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
58#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)
59#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 98#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
60#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 99#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
61#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 100#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
62#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))
63#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 103#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
64#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 104#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
65 105
66// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 106// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
67 107
68// 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)
69#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
70
71#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
72#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)
73#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)
74#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)
75#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)
76 115
77//TODO should index into @result 116//TODO should index into @result
78#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)
79#define RESULT_INT(idx) RESULT(idx, INT) 119#define RESULT_INT(idx) RESULT(idx, INT)
80 120
81bool cfperl_invoke (event_type event, ...); 121double cfperl_result_DOUBLE (int idx);
82int cfperl_result_INT (int idx); 122int cfperl_result_INT (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 };
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 MTH int refcnt_cnt () const;
146 // check wether the object has died and destroy
147 MTH void refcnt_chk () { if (refcnt <= 0) do_check (); }
148
149 // destroy the object unless it was already destroyed
150 // this politely asks everybody interested the reduce
151 // the refcount to 0 as soon as possible.
152 MTH void destroy ();
153
154 // return wether an object was destroyed already
155 MTH bool destroyed () const { return flags & F_DESTROYED; }
156
157 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
158
159#if 0
160private:
161 static refcounted *rc_first;
162 refcounted *rc_next;
163#endif
164
165 HV *self; // CF+ perl self
87 AV *cb; // CF+ perl self and callback 166 AV *cb; // CF+ callbacks
88 const char *attach; // generic extension attachment information 167 shstr attach; // generic extension attachment information
89 168
90 void clear (); // called when free'ing objects 169 void sever_self (); // sever this object from its self, if it has one.
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_init () 172 attachable ()
173 : flags (0), refcnt (0), self (0), cb (0), attach (0)
95 { 174 {
96 self = 0;
97 cb = 0;
98 attach = 0;
99 } 175 }
100};
101 176
102// objects attachable from perl (or any other extension) should include or 177 attachable (const attachable &src)
103// derive using the curiously recurring template pattern, to avoid 178 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
104// virtual method calls etc. 179 {
105template<class subclass> 180 }
106struct attachable : attachable_base 181
107{ 182 virtual ~attachable ();
183
184 attachable &operator =(const attachable &src);
185
186 bool invoke (event_type event, ...);
108 void instantiate () 187 MTH void instantiate ();
109 { 188 void reattach ();
110 if (attach)
111 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
112 }
113};
114 189
190protected:
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 ();
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
207
115struct object_freezer 208struct object_freezer : dynbuf
116{ 209{
117 AV *av; 210 AV *av;
118 SV *text;
119 211
120 object_freezer (); 212 object_freezer ();
121 ~object_freezer (); 213 ~object_freezer ();
122 214
123 void put (attachable_base *ext); 215 void put (attachable *ext);
124 216
125 template<class subclass> 217 // used only for user-defined key-value pairs
126 void put (attachable<subclass> *obj) 218 void put (const shstr &k, const shstr &v)
127 { 219 {
128 put ((attachable_base *)obj); 220 add (k);
129 }
130 221
131 void put (keyword k); 222 if (v)
223 add (' '), add (v);
224
225 add ('\n');
226 }
227
228 //TODO//temporary, used only for saving body locations
132 void put (const char *v); 229 void put (const char *k, int v)
133 void put (int v); 230 {
231 add (k);
232 add (' ');
233 add (sint32 (v));
234 add ('\n');
235 }
134 236
135 template<typename value> 237 template<typename T>
238 void put_string (keyword k, const T &v)
239 {
240 int klen = keyword_len [k];
241 int vlen = v ? strlen (v) + 1 : 0;
242
243 char *p = (char *)alloc (klen + vlen + 1);
244
245 memcpy (p, keyword_str [k], klen); p += klen;
246
247 if (v)
248 {
249 *p++ = ' '; vlen--;
250 memcpy (p, v, vlen); p += vlen;
251 }
252
253 *p = '\n';
254 }
255
256 void put (keyword k, const char *v = 0)
257 {
258 put_string (k, v);
259 }
260
261 void put (keyword k, const shstr &v)
262 {
263 put_string (k, v);
264 }
265
136 void put (keyword k, value v) 266 void put (keyword k, double v)
137 { 267 {
138 put (k); 268 char buf [128];
269
270 snprintf (buf, 128, "%.7g", v);
271
272 put (k, (const char *)buf);
273 }
274
275 void put_(keyword k, sint64 v)
276 {
277 add (keyword_str [k], keyword_len [k]);
278 add (' ');
139 put (v); 279 add (v);
280 add ('\n');
140 } 281 }
141 282
283 void put_(keyword k, sint32 v)
284 {
285 add (keyword_str [k], keyword_len [k]);
286 add (' ');
287 add (v);
288 add ('\n');
289 }
290
291 void put (keyword kbeg, keyword kend, const shstr &v)
292 {
293 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
294
295 if (v)
296 {
297 add (v);
298 add ('\n');
299 }
300
301 add (keyword_str [kend], keyword_len [kend]); add ('\n');
302 }
303
304 void put (keyword k, float v) { put (k, (double)v); }
305 void put (keyword k, signed char v) { put_(k, (sint32)v); }
306 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
307 void put (keyword k, signed short v) { put_(k, (sint32)v); }
308 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
309 void put (keyword k, signed int v) { put_(k, (sint32)v); }
310 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
311 void put (keyword k, signed long v) { put_(k, (sint64)v); }
312 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
313 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
314 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
315
316 template<typename T>
317 void put (keyword k, const T *v)
318 {
319 if (v)
320 put (k, v->name);
321 else
322 put (k, (const char *)0);
323 }
324
325 template<typename T>
326 void put (keyword k, const refptr<T> &v)
327 {
328 put (k, (T *)v);
329 }
330
142 bool save (const char *filename); 331 bool save (const char *path);
332 char *as_string (); // like strdup
143 333
144 operator bool () { return !!av; } 334 operator bool () { return !!av; }
145}; 335};
146 336
147// compatibility support, should be removed when no longer needed 337// compatibility support, should be removed when no longer needed
148int fprintf (object_freezer &freezer, const char *format, ...); 338int fprintf (object_freezer &freezer, const char *format, ...);
149int fputs (const char *s, object_freezer &freezer); 339int fputs (const char *s, object_freezer &freezer);
150 340
151// a single key-value line from a file
152struct token {
153 keyword k;
154 const char *v;
155
156 token (keyword k, const char *v = 0) : k(k), v(v) { }
157};
158
159struct object_thawer 341struct object_thawer
160{ 342{
161 AV *av; 343 SV *text; // text part
162 FILE *fp; 344 AV *av; // perl part
163 char line[1024]; 345 int linenum;
346 char *line; // current beginning of line
347 char *last_keyword, *last_value;
348 const char *name;
164 349
350 operator bool () { return !!text; }
351
165 object_thawer (const char *filename = 0); 352 object_thawer (const char *path = 0);
353 object_thawer (const char *data, AV *perlav);
166 ~object_thawer (); 354 ~object_thawer ();
167 355
168 void get (data_type type, void *obj, attachable_base *ext, int oid);
169
170 template<class subclass>
171 void get (attachable<subclass> *obj, int oid) 356 void get (attachable *obj, int oid);
172 {
173 if (av)
174 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
175 }
176 357
177 token get_token (); 358 keyword get_kv (); // also parse value for later use
359 void skip_kv (keyword kw);
178 360
179 operator FILE *() { return fp; } 361 const char *get_str () { return last_value; } // may be 0
362
363 void get (shstr &sh) const;
364 void get_ornull (shstr &sh) const { sh = last_value; }
365 void get_ml (keyword kend, shstr &sh);
366
367 sint32 get_sint32 () const;
368 sint64 get_sint64 () const;
369 double get_double () const;
370
371 void get (float &v) { v = get_double (); }
372 void get (double &v) { v = get_double (); }
373
374 void get (bool &i) { i = get_sint32 (); }
375 void get (sint8 &i) { i = get_sint32 (); }
376 void get (uint8 &i) { i = get_sint32 (); }
377 void get (sint16 &i) { i = get_sint32 (); }
378 void get (uint16 &i) { i = get_sint32 (); }
379 void get (sint32 &i) { i = get_sint32 (); }
380
381 void get (uint32 &i) { i = get_sint64 (); }
382 void get (sint64 &i) { i = get_sint64 (); }
383
384 bool parse_error (keyword kw, const char *type = 0, const char *name = 0, bool skip = true);
385};
386
387//TODO: remove
388char *fgets (char *s, int n, object_thawer &thawer);
389
390//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
391
392struct coroapi {
393 static struct CoroAPI *GCoroAPI;
394
395 static int nready () { return CORO_NREADY; }
396 static int cede () { return CORO_CEDE ; }
397
398 static int cede_counter;
399
400 static void cede_every (int count)
401 {
402 if (++cede_counter >= count)
403 {
404 cede_counter = 0;
405
406 if (coroapi::nready ())
407 coroapi::cede ();
408 }
409 }
410};
411
412struct watcher_base
413{
414 static struct EventAPI *GEventAPI;
415};
416
417template<class base>
418struct watcher : watcher_base
419{
420 base *pe;
421
422 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
423 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
424 void now () { GEventAPI->now ((pe_watcher *)pe); }
425 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
426 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
427
428 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
429
430 ~watcher ()
431 {
432 cancel ();
433 }
434
435private:
436 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
437};
438
439struct iw : watcher<pe_idle>, callback<void (iw &)>
440{
441 template<class O, class M>
442 iw (O object, M method)
443 : callback<void (iw &)> (object, method)
444 {
445 alloc ();
446 }
447
448private:
449 void alloc ();
450};
451
452struct iow : watcher<pe_io>, callback<void (iow &, int)>
453{
454 template<class O, class M>
455 iow (O object, M method)
456 : callback<void (iow &, int)> (object, method)
457 {
458 alloc ();
459 }
460
461 void fd (int fd);
462 int poll ();
463 void poll (int events);
464
465private:
466 void alloc ();
180}; 467};
181 468
182#endif 469#endif
183 470

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