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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.17 by root, Thu Aug 31 06:23:19 2006 UTC vs.
Revision 1.51 by root, Tue Jan 23 03:56:45 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
32struct pl; 47//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
33struct object; 48
34struct mapstruct; 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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
35 62
36void cfperl_init (); 63void cfperl_init ();
37void cfperl_boot ();
38void cfperl_main (); 64void cfperl_main ();
65void cfperl_emergency_save ();
39 66
40// could have used templates, but a more traditional C api 67//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
41// uses more explicit typing which is ok for this purpose.
42enum data_type
43{
44 DT_END, // no further arguments
45 DT_AV, // perl-only av that needs to be flattened out
46 DT_INT,
47 DT_INT64,
48 DT_DOUBLE,
49 DT_STRING, // 0-terminated string
50 DT_DATA, // string + length
51 DT_OBJECT,
52 DT_MAP,
53 DT_PLAYER,
54 DT_ARCH,
55 DT_PARTY,
56 DT_REGION,
57 68
58 NUM_DATA_TYPES 69// virtual server time, excluding time jumps and lag
59}; 70extern double runtime;
60 71
61enum event_klass 72enum event_klass
62{ 73{
63 KLASS_NONE, 74 KLASS_NONE,
64 KLASS_GLOBAL, 75 KLASS_GLOBAL,
76 KLASS_ATTACHABLE,
77 KLASS_CLIENT,
65 KLASS_PLAYER, 78 KLASS_PLAYER,
66 KLASS_OBJECT, 79 KLASS_OBJECT,
67 KLASS_MAP, 80 KLASS_MAP,
81 KLASS_COMMAND,
68}; 82};
69 83
70enum event_type 84enum event_type
71{ 85{
72# define def(klass,name) EVENT_ ## klass ## _ ## name, 86# define def(klass,name) EVENT_ ## klass ## _ ## name,
73# include "eventinc.h" 87# include "eventinc.h"
74# undef def 88# undef def
75 NUM_EVENT_TYPES 89 NUM_EVENT_TYPES
76}; 90};
77 91
78#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 92#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
79#define ARG_INT(v) DT_INT , static_cast<int> (v) 93#define ARG_INT(v) DT_INT , static_cast<int> (v)
80#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 94#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
81#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 95#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
82#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 96#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
83#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)
84#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 98#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
85#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 99#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
86#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 100#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
87#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))
88#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 103#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
89#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 104#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
90 105
91// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 106// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
92 107
93// 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)
94#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
95
96#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
97#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)
98#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)
99#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)
100#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)
101 115
102//TODO should index into @result 116//TODO should index into @result
103#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)
104#define RESULT_INT(idx) RESULT(idx, INT) 119#define RESULT_INT(idx) RESULT(idx, INT)
105 120
106bool cfperl_invoke (event_type event, ...); 121double cfperl_result_DOUBLE (int idx);
107int cfperl_result_INT (int idx); 122int cfperl_result_INT (int idx);
108 123
124//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
125
126INTERFACE_CLASS (attachable)
109struct attachable_base 127struct attachable
110{ 128{
111 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
112 AV *cb; // CF+ perl self and callback 166 AV *cb; // CF+ callbacks
113 const char *attach; // generic extension attachment information 167 shstr attach; // generic extension attachment information
114 168
115 void clear (); // called when free'ing objects
116 void optimise (); // possibly save some memory by destroying unneeded data 169 void optimise (); // possibly save some memory by destroying unneeded data
117 void instantiate (data_type type, void *obj);
118 170
119 void attachable_init () 171 attachable ()
172 : flags (0), refcnt (0), self (0), cb (0), attach (0)
120 { 173 {
121 self = 0;
122 cb = 0;
123 attach = 0;
124 } 174 }
125};
126 175
127// objects attachable from perl (or any other extension) should include or 176 attachable (const attachable &src)
128// derive using the curiously recurring template pattern, to avoid 177 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
129// virtual method calls etc.
130template<class subclass>
131struct attachable : attachable_base
132{
133 static data_type get_dt ()
134 { 178 {
135 return subclass::get_dt ();
136 } 179 }
137 180
181 virtual ~attachable ();
182
183 attachable &operator =(const attachable &src);
184
185 bool invoke (event_type event, ...);
138 void instantiate () 186 MTH void instantiate ();
139 { 187 void reattach ();
140 if (attach)
141 attachable_base::instantiate (get_dt (), static_cast<subclass *>(this));
142 }
143};
144 188
189protected:
190 // do the real refcount checking work
191 void do_check ();
192
193 // the method that does the real destroy work
194 virtual void do_destroy ();
195};
196
197// the global object is a pseudo object that cares for the global events
198struct global : attachable
199{
200 void gather_callbacks (AV *&callbacks, event_type event) const;
201};
202
203extern struct global gbl_ev;
204
205//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
206
145struct object_freezer 207struct object_freezer : dynbuf
146{ 208{
147 AV *av; 209 AV *av;
148 SV *text;
149 210
150 object_freezer (); 211 object_freezer ();
151 ~object_freezer (); 212 ~object_freezer ();
152 213
153 void put (attachable_base *ext); 214 void put (attachable *ext);
154 215
155 template<class subclass> 216 // used only for user-defined key-value pairs
156 void put (attachable<subclass> *obj) 217 void put (const shstr &k, const shstr &v)
157 { 218 {
158 put ((attachable_base *)obj); 219 add (k);
159 }
160 220
221 if (v)
222 add (' '), add (v);
223
224 add ('\n');
225 }
226
227 //TODO//temporary, used only for saving body locations
228 void put (const char *k, int v)
229 {
230 add (k);
231 add (' ');
232 add (sint32 (v));
233 add ('\n');
234 }
235
236 template<typename T>
237 void put_string (keyword k, const T &v)
238 {
239 int klen = keyword_len [k];
240 int vlen = v ? strlen (v) + 1 : 0;
241
242 char *p = (char *)alloc (klen + vlen + 1);
243
244 memcpy (p, keyword_str [k], klen); p += klen;
245
246 if (v)
247 {
248 *p++ = ' '; vlen--;
249 memcpy (p, v, vlen); p += vlen;
250 }
251
252 *p = '\n';
253 }
254
255 void put (keyword k, const char *v = 0)
256 {
257 put_string (k, v);
258 }
259
260 void put (keyword k, const shstr &v)
261 {
262 put_string (k, v);
263 }
264
265 void put (keyword k, double v)
266 {
267 char buf [128];
268
269 snprintf (buf, 128, "%.7g", v);
270
271 put (k, (const char *)buf);
272 }
273
274 void put_(keyword k, sint64 v)
275 {
276 add (keyword_str [k], keyword_len [k]);
277 add (' ');
278 add (v);
279 add ('\n');
280 }
281
282 void put_(keyword k, sint32 v)
283 {
284 add (keyword_str [k], keyword_len [k]);
285 add (' ');
286 add (v);
287 add ('\n');
288 }
289
290 void put (keyword kbeg, keyword kend, const shstr &v)
291 {
292 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
293
294 if (v)
295 {
296 add (v);
297 add ('\n');
298 }
299
300 add (keyword_str [kend], keyword_len [kend]); add ('\n');
301 }
302
303 void put (keyword k, float v) { put (k, (double)v); }
304 void put (keyword k, signed char v) { put_(k, (sint32)v); }
305 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
306 void put (keyword k, signed short v) { put_(k, (sint32)v); }
307 void put (keyword k, unsigned short v) { put_(k, (sint32)v); }
308 void put (keyword k, signed int v) { put_(k, (sint32)v); }
309 void put (keyword k, unsigned int v) { put_(k, (sint64)v); }
310 void put (keyword k, signed long v) { put_(k, (sint64)v); }
311 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
312 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
313 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
314
315 template<typename T>
316 void put (keyword k, const T *v)
317 {
318 if (v)
319 put (k, v->name);
320 else
321 put (k, (const char *)0);
322 }
323
324 template<typename T>
325 void put (keyword k, const refptr<T> &v)
326 {
327 put (k, (T *)v);
328 }
329
161 bool save (const char *filename); 330 bool save (const char *path);
331 char *as_string (); // like strdup
162 332
163 operator bool () { return !!av; } 333 operator bool () { return !!av; }
164}; 334};
165 335
166// compatibility support, should be removed when no longer needed 336// compatibility support, should be removed when no longer needed
167int fprintf (object_freezer &freezer, const char *format, ...); 337int fprintf (object_freezer &freezer, const char *format, ...);
168int fputs (const char *s, object_freezer &freezer); 338int fputs (const char *s, object_freezer &freezer);
169 339
170// a single key-value line from a file
171struct token {
172 keyword k;
173 const char *v;
174
175 token (keyword k, const char *v = 0) : k(k), v(v) { }
176};
177
178struct object_thawer 340struct object_thawer
179{ 341{
180 AV *av; 342 SV *text; // text part
181 FILE *fp; 343 AV *av; // perl part
182 char line[1024]; 344 char *line; // current beginning of line
345 char *last_keyword, *last_value;
346 const char *name;
183 347
348 operator bool () { return !!text; }
349
184 object_thawer (const char *filename = 0); 350 object_thawer (const char *path = 0);
351 object_thawer (const char *data, AV *perlav);
185 ~object_thawer (); 352 ~object_thawer ();
186 353
187 void get (data_type type, void *obj, attachable_base *ext, int oid);
188
189 template<class subclass>
190 void get (attachable<subclass> *obj, int oid) 354 void get (attachable *obj, int oid);
191 {
192 if (av)
193 get (subclass::get_dt (), (subclass *)obj, obj, oid);
194 }
195 355
196 token get_token (); 356 keyword get_kv (); // also parse value for later use
357 void skip_kv (keyword kw);
197 358
198 operator FILE *() { return fp; } 359 const char *get_str () { return last_value; } // may be 0
360
361 void get (shstr &sh) const;
362 void get_ornull (shstr &sh) const { sh = last_value; }
363 void get_ml (keyword kend, shstr &sh);
364
365 sint32 get_sint32 () const;
366 sint64 get_sint64 () const;
367 double get_double () const;
368
369 void get (float &v) { v = get_double (); }
370 void get (double &v) { v = get_double (); }
371
372 void get (bool &i) { i = get_sint32 (); }
373 void get (sint8 &i) { i = get_sint32 (); }
374 void get (uint8 &i) { i = get_sint32 (); }
375 void get (sint16 &i) { i = get_sint32 (); }
376 void get (uint16 &i) { i = get_sint32 (); }
377 void get (sint32 &i) { i = get_sint32 (); }
378
379 void get (uint32 &i) { i = get_sint64 (); }
380 void get (sint64 &i) { i = get_sint64 (); }
381};
382
383char *fgets (char *s, int n, object_thawer &thawer);
384
385//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
386
387struct coroapi {
388 static struct CoroAPI *GCoroAPI;
389
390 static int nready () { return CORO_NREADY; }
391 static int cede () { return CORO_CEDE ; }
392
393 static int cede_counter;
394
395 static void cede_every (int count)
396 {
397 if (++cede_counter >= count)
398 {
399 cede_counter = 0;
400
401 if (coroapi::nready ())
402 coroapi::cede ();
403 }
404 }
405};
406
407struct watcher_base
408{
409 static struct EventAPI *GEventAPI;
410};
411
412template<class base>
413struct watcher : watcher_base
414{
415 base *pe;
416
417 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
418 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
419 void now () { GEventAPI->now ((pe_watcher *)pe); }
420 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
421 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
422
423 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
424
425 ~watcher ()
426 {
427 cancel ();
428 }
429
430private:
431 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
432};
433
434struct iw : watcher<pe_idle>, callback<void (iw &)>
435{
436 template<class O, class M>
437 iw (O object, M method)
438 : callback<void (iw &)> (object, method)
439 {
440 alloc ();
441 }
442
443private:
444 void alloc ();
445};
446
447struct iow : watcher<pe_io>, callback<void (iow &, int)>
448{
449 template<class O, class M>
450 iow (O object, M method)
451 : callback<void (iow &, int)> (object, method)
452 {
453 alloc ();
454 }
455
456 void fd (int fd);
457 int poll ();
458 void poll (int events);
459
460private:
461 void alloc ();
199}; 462};
200 463
201#endif 464#endif
202 465

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