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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.32 by root, Fri Nov 17 19:40:54 2006 UTC vs.
Revision 1.46 by root, Mon Jan 1 00:41:03 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), int (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
84struct attachable_base 125struct attachable
85{ 126{
86 SV *self; 127 static MGVTBL vtbl;
128
129 static unordered_vector<attachable *> mortals;
130 static void check_mortals ();
131
132 enum {
133 F_DESTROYED = 0x01,
134 F_BORROWED = 0x02,
135 };
136
137 // object is delete'd after the refcount reaches 0
138 mutable int refcnt;
139 int flags;
140
141 void refcnt_inc () const { ++refcnt; }
142 void refcnt_dec () const { --refcnt; }
143
144 // check wether the object has died and destroy
145 void refcnt_chk () { if (refcnt <= 0) do_check (); }
146
147 // destroy the object unless it was already destroyed
148 // this politely asks everybody interested the reduce
149 // the refcount to 0 as soon as possible.
150 void destroy ();
151
152 // return wether an object was destroyed already
153 bool destroyed () const { return flags & F_DESTROYED; }
154
155 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
156
157#if 0
158private:
159 static refcounted *rc_first;
160 refcounted *rc_next;
161#endif
162
163 HV *self; // CF+ perl self
87 AV *cb; // CF+ perl self and callback 164 AV *cb; // CF+ callbacks
88 shstr attach; // generic extension attachment information 165 shstr attach; // generic extension attachment information
89 166
90 void clear (); // called when free'ing objects
91 void optimise (); // possibly save some memory by destroying unneeded data 167 void optimise (); // possibly save some memory by destroying unneeded data
92 void instantiate (data_type type, void *obj);
93 168
94 void attachable_clear ()
95 {
96 self = 0;
97 cb = 0;
98 attach = 0;
99 }
100
101 attachable_base () 169 attachable ()
170 : flags (0), refcnt (0), self (0), cb (0), attach (0)
102 { 171 {
103 attachable_clear ();
104 } 172 }
105 173
106 ~attachable_base ()
107 {
108 clear ();
109 }
110
111 attachable_base (const attachable_base &src) 174 attachable (const attachable &src)
112 : self (0), cb (0), attach (src.attach) 175 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
113 { 176 {
114 } 177 }
115 178
179 virtual ~attachable ();
180
116 attachable_base &operator = (const attachable_base &src) 181 attachable &operator =(const attachable &src);
117 {
118 clear ();
119 attach = src.attach;
120 return *this;
121 }
122};
123 182
124// objects attachable from perl (or any other extension) should include or 183 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 () 184 void instantiate ();
131 { 185 void reattach ();
132 if (attach) 186
133 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this)); 187protected:
134 } 188 // do the real refcount checking work
189 void do_check ();
190
191 // the method that does the real destroy work
192 virtual void do_destroy ();
135}; 193};
194
195// the global object is a pseudo object that cares for the global events
196struct global : attachable
197{
198 void gather_callbacks (AV *&callbacks, event_type event) const;
199};
200
201extern struct global gbl_ev;
202
203//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
136 204
137struct object_freezer : dynbuf 205struct object_freezer : dynbuf
138{ 206{
139 AV *av; 207 AV *av;
140 208
141 object_freezer (); 209 object_freezer ();
142 ~object_freezer (); 210 ~object_freezer ();
143 211
144 void put (attachable_base *ext); 212 void put (attachable *ext);
145
146 template<class subclass>
147 void put (attachable<subclass> *obj)
148 {
149 put ((attachable_base *)obj);
150 }
151 213
152 // used only for user-defined key-value pairs 214 // used only for user-defined key-value pairs
153 void put (const shstr &k, const shstr &v) 215 void put (const shstr &k, const shstr &v)
154 { 216 {
155 add (k); 217 add (k);
186 } 248 }
187 249
188 *p = '\n'; 250 *p = '\n';
189 } 251 }
190 252
191 void put (keyword k, const char *v) 253 void put (keyword k, const char *v = 0)
192 { 254 {
193 put_string (k, v); 255 put_string (k, v);
194 } 256 }
195 257
196 void put (keyword k, const shstr &v) 258 void put (keyword k, const shstr &v)
276struct object_thawer 338struct object_thawer
277{ 339{
278 SV *text; // text part 340 SV *text; // text part
279 AV *av; // perl part 341 AV *av; // perl part
280 char *line; // current beginning of line 342 char *line; // current beginning of line
281 char *last_value; 343 char *last_keyword, *last_value;
282 344
283 operator bool () { return !!text; } 345 operator bool () { return !!text; }
284 346
285 object_thawer (const char *filename = 0); 347 object_thawer (const char *filename = 0);
286 object_thawer (const char *data, AV *perlav); 348 object_thawer (const char *data, AV *perlav);
287 ~object_thawer (); 349 ~object_thawer ();
288 350
289 void get (data_type type, void *obj, attachable_base *ext, int oid);
290
291 template<class subclass>
292 void get (attachable<subclass> *obj, int oid) 351 void get (attachable *obj, int oid);
293 {
294 if (av)
295 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
296 }
297 352
298 keyword get_kv (); // also parse value for later use 353 keyword get_kv (); // also parse value for later use
354 void skip_kv (keyword kw);
299 355
300 const char *get_str () { return last_value; } // may be 0 356 const char *get_str () { return last_value; } // may be 0
301 357
302 void get (shstr &sh) const; 358 void get (shstr &sh) const;
303 void get_ornull (shstr &sh) const { sh = last_value; } 359 void get_ornull (shstr &sh) const { sh = last_value; }
305 361
306 sint32 get_sint32 () const; 362 sint32 get_sint32 () const;
307 sint64 get_sint64 () const; 363 sint64 get_sint64 () const;
308 double get_double () const; 364 double get_double () const;
309 365
310 void get (float &v) { v = get_double (); } 366 void get (float &v) { v = get_double (); }
311 void get (double &v) { v = get_double (); } 367 void get (double &v) { v = get_double (); }
312 368
369 void get (bool &i) { i = get_sint32 (); }
313 void get (sint8 &i) { i = get_sint32 (); } 370 void get (sint8 &i) { i = get_sint32 (); }
314 void get (uint8 &i) { i = get_sint32 (); } 371 void get (uint8 &i) { i = get_sint32 (); }
315 void get (sint16 &i) { i = get_sint32 (); } 372 void get (sint16 &i) { i = get_sint32 (); }
316 void get (uint16 &i) { i = get_sint32 (); } 373 void get (uint16 &i) { i = get_sint32 (); }
317 void get (sint32 &i) { i = get_sint32 (); } 374 void get (sint32 &i) { i = get_sint32 (); }
320 void get (sint64 &i) { i = get_sint64 (); } 377 void get (sint64 &i) { i = get_sint64 (); }
321}; 378};
322 379
323char *fgets (char *s, int n, object_thawer &thawer); 380char *fgets (char *s, int n, object_thawer &thawer);
324 381
382//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
383
384struct coroapi {
385 static struct CoroAPI *GCoroAPI;
386
387 static int nready () { return CORO_NREADY; }
388 static int cede () { return CORO_CEDE ; }
389
390 static int cede_counter;
391
392 static void cede_every (int count)
393 {
394 if (++cede_counter >= count)
395 {
396 cede_counter = 0;
397
398 if (coroapi::nready ())
399 coroapi::cede ();
400 }
401 }
402};
403
404struct watcher_base
405{
406 static struct EventAPI *GEventAPI;
407};
408
409template<class base>
410struct watcher : watcher_base
411{
412 base *pe;
413
414 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
415 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
416 void now () { GEventAPI->now ((pe_watcher *)pe); }
417 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
418 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
419
420 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
421
422 ~watcher ()
423 {
424 cancel ();
425 }
426
427private:
428 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
429};
430
431struct iw : watcher<pe_idle>, callback<void (iw &)>
432{
433 template<class O, class M>
434 iw (O object, M method)
435 : callback<void (iw &)> (object, method)
436 {
437 alloc ();
438 }
439
440private:
441 void alloc ();
442};
443
444struct iow : watcher<pe_io>, callback<void (iow &, int)>
445{
446 template<class O, class M>
447 iow (O object, M method)
448 : callback<void (iow &, int)> (object, method)
449 {
450 alloc ();
451 }
452
453 void fd (int fd);
454 int poll ();
455 void poll (int events);
456
457private:
458 void alloc ();
459};
460
325#endif 461#endif
326 462

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