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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.20 by root, Thu Aug 31 18:59:24 2006 UTC vs.
Revision 1.107 by root, Mon Oct 12 04:02:17 2009 UTC

1/*
2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 *
4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 *
8 * Deliantra is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 *
21 * The authors can be reached via e-mail to <support@deliantra.net>
22 */
23
1// 24//
2// cfperl.h perl interface 25// cfperl.h perl interface
3// 26//
4#ifndef CFPERL_H__ 27#ifndef CFPERL_H__
5#define CFPERL_H__ 28#define CFPERL_H__
6 29
30#include <cstdarg>
7#include <cstdio> 31#include <cstdio>
32#include <bitset>
8 33
9using namespace std; 34using namespace std;
10 35
11#include <EXTERN.h> 36#include <EXTERN.h>
12#include <perl.h> 37#include <perl.h>
13#include <XSUB.h> 38#include <XSUB.h>
39
40#include <EVAPI.h>
41#include <CoroAPI.h>
42
43#include "util.h"
44#include "keyword.h"
45#include "dynbuf.h"
46#include "callback.h"
47
48//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
14 49
15// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 50// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
16#undef localtime 51#undef localtime
17#undef srand48 52#undef srand48
18#undef drand48 53#undef drand48
19#undef srandom 54#undef srandom
55#undef opendir
20#undef readdir 56#undef readdir
57#undef closedir
21#undef getprotobyname 58#undef getprotobyname
22#undef gethostbyname 59#undef gethostbyname
23#undef ctime 60#undef ctime
24#undef strerror 61#undef strerror
62#undef _
63
64// same here, massive symbol spamming
65#undef do_open
66#undef do_close
67#undef ref
68#undef seed
25 69
26// perl bug #40256: perl does overwrite those with reentrant versions 70// perl bug #40256: perl does overwrite those with reentrant versions
27// but does not initialise their state structures. 71// but does not initialise their state structures.
28#undef random 72#undef random
29#undef crypt 73#undef crypt
30 74
75//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
76
77#define _(msg) (msg)
78#define N_(msg) (msg)
79
80//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
81
82// some macros to simplify perl in-calls
83
84#define CHECK_ERROR \
85 if (SvTRUE (ERRSV)) \
86 LOG (llevError, "runtime error in %s: %s", __func__, SvPVutf8_nolen (ERRSV));
87
88inline int call_pvsv (const char *ob, I32 flags) { return call_pv (ob, flags); }
89inline int call_pvsv (SV *ob, I32 flags) { return call_sv (ob, flags); }
90
91#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
92#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
93#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
94#define CALL_CALL(name, flags) PUTBACK; int count = call_pvsv (name, (flags) | G_EVAL); SPAGAIN;
95#define CALL_END PUTBACK; CHECK_ERROR; FREETMPS; LEAVE
96
97//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
98
31void cfperl_init (); 99void cfperl_init ();
32void cfperl_boot ();
33void cfperl_main (); 100void cfperl_main ();
101void cfperl_tick ();
102void cfperl_emergency_save ();
103void cfperl_cleanup (int make_core);
104void cfperl_make_book (object *book, int level);
105void cfperl_send_msg (client *ns, int color, const char *type, const char *msg);
106int cfperl_can_merge (object *ob1, object *ob2);
107void cfperl_mapscript_activate (object *ob, int state, object *activator, object *originator = 0);
108
109bool is_match_expr (const char *expr);
110/* applies the match expression and returns true if it matches */
111bool match (const char *expr, object *ob, object *self = 0, object *source = 0, object *originator = 0);
112
113//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
114
115#if IVSIZE >= 8
116 typedef IV val64;
117 typedef IV uval64;
118# define newSVval64 newSViv
119# define SvVAL64 SvIV
120# define newSVuval64 newSVuv
121# define SvUVAL64 SvUV
122#else
123 typedef double val64;
124 typedef double uval64;
125# define newSVval64 newSVnv
126# define SvVAL64 SvNV
127# define newSVuval64 newSVnv
128# define SvUVAL64 SvNV
129#endif
130
131extern tstamp runtime; // virtual server time, excluding time jumps and lag
132extern tstamp NOW; // real time of current server tick
34 133
35enum event_klass 134enum event_klass
36{ 135{
37 KLASS_NONE, 136 KLASS_NONE,
38 KLASS_GLOBAL, 137 KLASS_GLOBAL,
138 KLASS_ATTACHABLE,
139 KLASS_CLIENT,
39 KLASS_PLAYER, 140 KLASS_PLAYER,
40 KLASS_OBJECT, 141 KLASS_OBJECT,
41 KLASS_MAP, 142 KLASS_MAP,
143 KLASS_COMMAND,
42}; 144};
43 145
44enum event_type 146enum event_type
45{ 147{
46# define def(klass,name) EVENT_ ## klass ## _ ## name, 148# define def(klass,name) EVENT_ ## klass ## _ ## name,
47# include "eventinc.h" 149# include "eventinc.h"
48# undef def 150# undef def
49 NUM_EVENT_TYPES 151 NUM_EVENT_TYPES
50}; 152};
51 153
154// in which global events or per-type events are we interested
155extern bitset<NUM_EVENT_TYPES> ev_want_event;
156extern bitset<NUM_TYPES> ev_want_type;
157
52#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 158#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
53#define ARG_INT(v) DT_INT , static_cast<int> (v) 159#define ARG_INT(v) DT_INT , static_cast<int> (v)
54#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 160#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
55#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 161#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
56#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 162#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
57#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) 163#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
58#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 164#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
59#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 165#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
60#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 166#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
61#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct archetype *> (o) 167#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
168#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
62#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 169#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
63#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 170#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
64 171
65// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 172// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
66 173#define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0)
67// all these return true when the normal event processing should be skipped (if any)
68#define INVOKE_(event, ...) cfperl_invoke (event, ## __VA_ARGS__, DT_END)
69
70#define INVOKE(klass, event, ...) INVOKE_(EVENT_ ## klass ## _ ## event, ## __VA_ARGS__)
71#define INVOKE_GLOBAL(event, ...) INVOKE_(EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__) 174#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
175#define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__)
72#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) 176#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__)
177#define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__)
73#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 178#define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__)
74#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 179#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__)
75 180
76//TODO should index into @result 181//TODO should index into @result
77#define RESULT(idx,type) cfperl_result_ ## type (idx) 182#define RESULT(idx,type) cfperl_result_ ## type (idx)
183#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
78#define RESULT_INT(idx) RESULT(idx, INT) 184#define RESULT_INT(idx) RESULT(idx, INT)
79 185
80bool cfperl_invoke (event_type event, ...); 186double cfperl_result_DOUBLE (int idx);
81int cfperl_result_INT (int idx); 187int cfperl_result_INT (int idx);
82 188
189//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
190
191INTERFACE_CLASS (attachable)
83struct attachable_base 192struct attachable : refcnt_base
84{ 193{
85 SV *self; 194 static MGVTBL vtbl;
195
196 enum {
197 F_DESTROYED = 0x01,
198 F_DEBUG_TRACE = 0x02,
199 };
200 uint8 ACC (RW, flags);
201
202 static unordered_vector<attachable *> mortals;
203 MTH static void check_mortals ();
204
205 // object is delete'd after the refcount reaches 0
206 MTH int refcnt_cnt () const;
207 // check wether the object has died and destroy
208 MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }
209
210 // destroy the object unless it was already destroyed
211 // this politely asks everybody interested the reduce
212 // the refcount to 0 as soon as possible.
213 MTH void destroy ();
214
215 // return wether an object was destroyed already
216 MTH bool destroyed () const { return flags & F_DESTROYED; }
217
218 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
219
220#if 0
221private:
222 static refcounted *rc_first;
223 refcounted *rc_next;
224#endif
225
226 HV *self; // CF+ perl self
86 AV *cb; // CF+ perl self and callback 227 AV *cb; // CF+ callbacks
87 const char *attach; // generic extension attachment information 228 shstr attach; // generic extension attachment information
88 229
89 void clear (); // called when free'ing objects 230 void sever_self (); // sever this object from its self, if it has one.
90 void optimise (); // possibly save some memory by destroying unneeded data 231 void optimise (); // possibly save some memory by destroying unneeded data
91 void instantiate (data_type type, void *obj);
92 232
93 void attachable_init () 233 attachable ()
234 : flags (0), self (0), cb (0), attach (0)
94 { 235 {
95 self = 0;
96 cb = 0;
97 attach = 0;
98 } 236 }
99};
100 237
101// objects attachable from perl (or any other extension) should include or 238 attachable (const attachable &src)
102// derive using the curiously recurring template pattern, to avoid 239 : flags (0), self (0), cb (0), attach (src.attach)
103// virtual method calls etc. 240 {
104template<class subclass> 241 }
105struct attachable : attachable_base 242
106{ 243 // set a custom key to the given value, or delete it if value = 0
244 void set_key (const char *key, const char *value = 0, bool is_utf8 = 0);
245
246 void set_key_text (const char *key, const char *value = 0)
247 {
248 set_key (key, value, 1);
249 }
250
251 void set_key_data (const char *key, const char *value = 0)
252 {
253 set_key (key, value, 0);
254 }
255
256 attachable &operator =(const attachable &src);
257
258 // used to _quickly_ device wether to shortcut the evaluation
259 bool should_invoke (event_type event)
260 {
261 return ev_want_event [event] || cb;
262 }
263
264 bool invoke (event_type event, ...);
265
107 void instantiate () 266 MTH void instantiate ();
108 { 267 void reattach ();
109 if (attach)
110 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
111 }
112};
113 268
269protected:
270 // do the real refcount checking work
271 void do_check ();
272
273 // the method that does the real destroy work
274 virtual void do_destroy ();
275
276 // destructor is protected, should not be called by anybody
277 virtual ~attachable ();
278};
279
280// the global object is a pseudo object that cares for the global events
281struct global : attachable
282{
283 void gather_callbacks (AV *&callbacks, event_type event) const;
284};
285
286extern struct global gbl_ev;
287
288//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
289
290INTERFACE_CLASS(object_freezer)
114struct object_freezer : dynbuf 291struct object_freezer : dynbuf_text
115{ 292{
116 AV *av; 293 AV *av;
117 294
118 object_freezer (); 295 object_freezer ();
119 ~object_freezer (); 296 ~object_freezer ();
120 297
121 void put (attachable_base *ext); 298 void put (attachable *ext);
122 299
123 template<class subclass> 300 // used only for user-defined key-value pairs
124 void put (attachable<subclass> *obj) 301 void put (shstr_tmp k, shstr_tmp v)
125 {
126 put ((attachable_base *)obj);
127 }
128
129 //TODO//temporary
130 void put (const char *k, const char *v)
131 { 302 {
132 add (k); 303 add (k);
133 304
134 //if (v) 305 if (expect_true (v))
135 add (' '); //TODO//cf compatibility always add space 306 add (' '), add (v);
136 if (v)
137 add (v);
138 307
139 add ('\n'); 308 add ('\n');
140 } 309 }
141 310
142 //TODO//temporary 311 template<typename T>
143 void put (const char *k, int v)
144 {
145 add (k);
146 add (' ');
147 add (sint32 (v));
148 add ('\n');
149 }
150
151 void put (keyword k, const char *v) 312 void put_kw_string (keyword k, const T &v)
152 { 313 {
153 int klen = keyword_len [k]; 314 int klen = keyword_len [k];
154 int vlen = v ? strlen (v) : 0; 315 int vlen = v ? strlen (v) + 1 : 0;
155 316
156 char *p = (char *)alloc (klen + 1 + vlen + 1); 317 char *p = (char *)alloc (klen + vlen + 1);
157 318
158 memcpy (p, keyword_str [k], klen); p += klen; 319 memcpy (p, keyword_str [k], klen); p += klen;
159 *p++ = ' '; //TODO//cf compatibility always add space 320
321 if (expect_true (v))
322 {
323 *p++ = ' '; vlen--;
160 memcpy (p, v, vlen); p += vlen; 324 memcpy (p, v, vlen); p += vlen;
325 }
326
161 *p = '\n'; 327 *p = '\n';
162 } 328 }
163 329
330 void put (keyword k, const char *v = 0)
331 {
332 put_kw_string (k, v);
333 }
334
335 void put (keyword k, shstr_tmp v)
336 {
337 put_kw_string (k, v);
338 }
339
164 void put (keyword k, double v) 340 void put (keyword k, double v)
165 { 341 {
166 char buf [128]; 342 force (MAX_KEYWORD_LEN + 2 + 32);
167 343 fadd (keyword_str [k], keyword_len [k]);
168 snprintf (buf, 128, "%.7g", v); 344 fadd (' ');
169 345 falloc (sprintf (ptr, "%.7g", v));
170 put (k, (const char *)buf); 346 fadd ('\n');
171 } 347 }
172 348
173 void put_(keyword k, sint64 v) 349 void put_(keyword k, sint64 v)
174 { 350 {
351 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
175 add (keyword_str [k], keyword_len [k]); 352 fadd (keyword_str [k], keyword_len [k]);
176 add (' '); 353 fadd (' ');
177 add (v); 354 add (v);
178 add ('\n'); 355 fadd ('\n');
179 } 356 }
180 357
181 void put_(keyword k, sint32 v) 358 void put_(keyword k, sint32 v)
182 { 359 {
360 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
183 add (keyword_str [k], keyword_len [k]); 361 fadd (keyword_str [k], keyword_len [k]);
184 add (' '); 362 fadd (' ');
185 add (v); 363 add (v);
186 add ('\n'); 364 fadd ('\n');
187 }
188
189 void put (keyword kbeg, keyword kend, const char *v)
190 {
191 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
192
193 if (v)
194 {
195 add (v);
196 add ('\n');
197 }
198
199 add (keyword_str [kend], keyword_len [kend]); add ('\n');
200 } 365 }
201 366
202 void put (keyword k, float v) { put (k, (double)v); } 367 void put (keyword k, float v) { put (k, (double)v); }
203 void put (keyword k, signed char v) { put_(k, (sint32)v); } 368 void put (keyword k, signed char v) { put_(k, (sint32)v); }
204 void put (keyword k, unsigned char v) { put_(k, (sint32)v); } 369 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
209 void put (keyword k, signed long v) { put_(k, (sint64)v); } 374 void put (keyword k, signed long v) { put_(k, (sint64)v); }
210 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 375 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
211 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 376 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
212 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 377 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
213 378
379 void put (keyword kbeg, keyword kend, shstr_tmp v)
380 {
381 force (MAX_KEYWORD_LEN + 1);
382 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
383
384 if (expect_true (v))
385 {
386 add (v);
387 add ('\n');
388 }
389
390 force (MAX_KEYWORD_LEN + 1);
391 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
392 }
393
394 void put (keyword k, archetype *v);
395 void put (keyword k, treasurelist *v);
396 void put (keyword k, faceinfo *v);
397
214 template<typename T> 398 template<typename T>
215 void put (keyword k, T *v) 399 void put (keyword k, const refptr<T> &v)
216 { 400 {
217 put (k, v ? (const char *)v->name : 0); 401 put (k, (T *)v);
218 } 402 }
219 403
220 bool save (const char *filename); 404 MTH bool save (const_octet_string path);
405 char *as_string (); // like strdup
221 406
222 operator bool () { return !!av; } 407 operator bool () { return !!av; }
223}; 408};
224 409
225// compatibility support, should be removed when no longer needed 410INTERFACE_CLASS(object_thawer)
226int fprintf (object_freezer &freezer, const char *format, ...);
227int fputs (const char *s, object_freezer &freezer);
228
229// a single key-value line from a file
230struct token {
231 keyword k;
232 const char *v;
233
234 token (keyword k, const char *v = 0) : k(k), v(v) { }
235};
236
237struct object_thawer 411struct object_thawer
238{ 412{
239 AV *av; 413 char *line; // current beginning of line
240 FILE *fp; 414 SV *text; // text part
241 char line[1024]; 415 AV *av; // perl part
416 int linenum;
417 keyword kw;
418 char *kw_str; // the keyword parsed, as string
419 char *value; // the value, or 0 if no value
420 const char *value_nn; // the value, or the empty string if no value
421 const char *name;
242 422
423 operator bool () const { return !!text; }
424
243 object_thawer (const char *filename = 0); 425 object_thawer (const char *path = 0);
426 object_thawer (const char *data, AV *perlav);
244 ~object_thawer (); 427 ~object_thawer ();
245 428
246 void get (data_type type, void *obj, attachable_base *ext, int oid);
247
248 template<class subclass>
249 void get (attachable<subclass> *obj, int oid) 429 void get (attachable *obj, int oid);
250 { 430
251 if (av) 431 // parse next line
252 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid); 432 MTH void next ();
433 // skip the current key-value (usually fetch next line, for
434 // multiline-fields, skips till the corresponding end-kw
435 MTH void skip ();
436 MTH void skip_block (); // skips till and over KW_end
437
438 char *get_str () { return value; } // may be 0
439 void get_ml (keyword kend, shstr &sh);
440
441 void get_ornull (shstr &sh) const { sh = value; }
442 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
443
444 bool get_bool () const { return *value_nn == '1'; }
445 sint32 get_sint32 () const;
446 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
447 double get_double () const { return strtod (value_nn, 0); }
448
449 void get (float &v) { v = get_double (); }
450 void get (double &v) { v = get_double (); }
451
452 void get (bool &i) { i = get_bool (); }
453 void get (sint8 &i) { i = get_sint32 (); }
454 void get (uint8 &i) { i = get_sint32 (); }
455 void get (sint16 &i) { i = get_sint32 (); }
456 void get (uint16 &i) { i = get_sint32 (); }
457 void get (sint32 &i) { i = get_sint32 (); }
458
459 void get (uint32 &i) { i = get_sint64 (); }
460 void get (sint64 &i) { i = get_sint64 (); }
461
462 MTH void parse_warn (const char *msg);
463 MTH bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
464
465 struct delayed_ref {
466 attachable *op;
467 object_ptr *ptr;
468 const char *ref;
253 } 469 };
470 std::vector<delayed_ref> delrefs;
254 471
255 token get_token (); 472 void delayed_deref (attachable *op, object_ptr &ptr, const char *ref);
473 MTH void resolve_delayed_derefs (bool deref = true);
474};
256 475
257 operator FILE *() { return fp; } 476//TODO: remove
477char *fgets (char *s, int n, object_thawer &thawer);
478
479//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
480
481struct coroapi {
482 static struct CoroAPI *GCoroAPI;
483
484 static EV_ATOMIC_T cede_pending;
485
486 static int nready () { return CORO_NREADY; }
487 static int cede () { cede_pending = 0; return CORO_CEDE ; }
488
489 static void do_cede_to_tick ();
490
491 // actually cede's far more often
492 static bool cede_to_tick ()
493 {
494 if (expect_true (!cede_pending))
495 return false;
496
497 do_cede_to_tick ();
498 return true;
499 }
500
501 static void wait_for_tick ();
502 static void wait_for_tick_begin ();
503};
504
505struct evapi
506{
507 static struct EVAPI *GEVAPI;
508};
509
510struct iow : ev_io, evapi, callback<void (iow &, int)>
511{
512 static void thunk (EV_P_ struct ev_io *w_, int revents)
513 {
514 iow &w = *static_cast<iow *>(w_);
515
516 w (w, revents);
517 }
518
519 template<class O, class M>
520 iow (O object, M method)
521 : callback<void (iow &, int)> (object, method)
522 {
523 ev_init ((ev_io *)this, thunk);
524 }
525
526 void prio (int prio)
527 {
528 ev_set_priority ((ev_io *)this, prio);
529 }
530
531 void set (int fd, int events)
532 {
533 ev_io_set ((ev_io *)this, fd, events);
534 }
535
536 int poll () const { return events; }
537
538 void poll (int events);
539
540 void start ()
541 {
542 ev_io_start (EV_DEFAULT, (ev_io *)this);
543 }
544
545 void stop ()
546 {
547 ev_io_stop (EV_DEFAULT, (ev_io *)this);
548 }
549
550 ~iow ()
551 {
552 stop ();
553 }
554};
555
556struct asyncw : ev_async, evapi, callback<void (ev_async &, int)>
557{
558 static void thunk (EV_P_ struct ev_async *w_, int revents)
559 {
560 asyncw &w = *static_cast<asyncw *>(w_);
561
562 w (w, revents);
563 }
564
565 template<class O, class M>
566 asyncw (O object, M method)
567 : callback<void (asyncw &, int)> (object, method)
568 {
569 ev_init ((ev_async *)this, thunk);
570 }
571
572 void start ()
573 {
574 ev_async_start (EV_DEFAULT, (ev_async *)this);
575 }
576
577 void stop ()
578 {
579 ev_async_stop (EV_DEFAULT, (ev_async *)this);
580 }
581
582 ~asyncw ()
583 {
584 stop ();
585 }
258}; 586};
259 587
260#endif 588#endif
261 589

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