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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 1.84 by root, Sat Jul 21 18:01:26 2007 UTC

1/*
2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 *
8 * Crossfire TRT 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 <crossfire@schmorp.de>
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 <EventAPI.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
… …
21#undef getprotobyname 56#undef getprotobyname
22#undef gethostbyname 57#undef gethostbyname
23#undef ctime 58#undef ctime
24#undef strerror 59#undef strerror
25 60
61// same here, massive symbol spamming
62#undef do_open
63#undef do_close
64#undef ref
65#undef seed
66
26// perl bug #40256: perl does overwrite those with reentrant versions 67// perl bug #40256: perl does overwrite those with reentrant versions
27// but does not initialise their state structures. 68// but does not initialise their state structures.
28#undef random 69#undef random
29#undef crypt 70#undef crypt
30 71
72//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
73
74// some macros to simplify perl in-calls
75
76#define CHECK_ERROR \
77 if (SvTRUE (ERRSV)) \
78 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
79
80#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
81#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
82#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
83#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN;
84#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
85
86//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
87
31void cfperl_init (); 88void cfperl_init ();
32void cfperl_main (); 89void cfperl_main ();
90void cfperl_emergency_save ();
91void cfperl_cleanup (int make_core);
92void cfperl_make_book (object *book, int level);
93void cfperl_send_msg (client *ns, int color, const char *type, const char *msg);
94int cfperl_can_merge (object *ob1, object *ob2);
95
96//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
97
98extern tstamp runtime; // virtual server time, excluding time jumps and lag
99extern tstamp NOW; // real time of current server tick
33 100
34enum event_klass 101enum event_klass
35{ 102{
36 KLASS_NONE, 103 KLASS_NONE,
37 KLASS_GLOBAL, 104 KLASS_GLOBAL,
105 KLASS_ATTACHABLE,
106 KLASS_CLIENT,
38 KLASS_PLAYER, 107 KLASS_PLAYER,
39 KLASS_OBJECT, 108 KLASS_OBJECT,
40 KLASS_MAP, 109 KLASS_MAP,
110 KLASS_COMMAND,
41}; 111};
42 112
43enum event_type 113enum event_type
44{ 114{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 115# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 116# include "eventinc.h"
47# undef def 117# undef def
48 NUM_EVENT_TYPES 118 NUM_EVENT_TYPES
49}; 119};
50 120
121// in which global events or per-type events are we interested
122extern bitset<NUM_EVENT_TYPES> ev_want_event;
123extern bitset<NUM_TYPES> ev_want_type;
124
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 125#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
52#define ARG_INT(v) DT_INT , static_cast<int> (v) 126#define ARG_INT(v) DT_INT , static_cast<int> (v)
53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 127#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 128#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 129#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) 130#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) 131#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
58#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) 132#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) 133#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) 134#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
135#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) 136#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
62#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) 137#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
63 138
64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 139// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
65 140#define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0)
66// 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__) 141#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
142#define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__)
71#define INVOKE_OBJECT(event, op, ...) INVOKE_(EVENT_ ## OBJECT ## _ ## event, ARG_OBJECT (op), ## __VA_ARGS__) 143#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__)
144#define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__)
72#define INVOKE_PLAYER(event, pl, ...) INVOKE_(EVENT_ ## PLAYER ## _ ## event, ARG_PLAYER (pl), ## __VA_ARGS__) 145#define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__)
73#define INVOKE_MAP(event, map, ...) INVOKE_(EVENT_ ## MAP ## _ ## event, ARG_MAP (map) , ## __VA_ARGS__) 146#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__)
74 147
75//TODO should index into @result 148//TODO should index into @result
76#define RESULT(idx,type) cfperl_result_ ## type (idx) 149#define RESULT(idx,type) cfperl_result_ ## type (idx)
150#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
77#define RESULT_INT(idx) RESULT(idx, INT) 151#define RESULT_INT(idx) RESULT(idx, INT)
78#define RESULT_MAP(idx) RESULT(idx, MAP)
79 152
80bool cfperl_invoke (event_type event, ...); 153double cfperl_result_DOUBLE (int idx);
81int cfperl_result_INT (int idx); 154int cfperl_result_INT (int idx);
82int cfperl_result_MAP (int idx);
83 155
156//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
157
158INTERFACE_CLASS (attachable)
84struct attachable_base 159struct attachable
85{ 160{
86 SV *self; 161 static MGVTBL vtbl;
162
163 static unordered_vector<attachable *> mortals;
164 MTH static void check_mortals ();
165
166 enum {
167 F_DESTROYED = 0x01,
168 F_DEBUG_TRACE = 0x02,
169 };
170
171 // object is delete'd after the refcount reaches 0
172 int ACC (RW, flags);
173 mutable int ACC (RW, refcnt);
174
175 MTH void refcnt_inc () const { ++refcnt; }
176 MTH void refcnt_dec () const { --refcnt; }
177
178 MTH int refcnt_cnt () const;
179 // check wether the object has died and destroy
180 MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }
181
182 // destroy the object unless it was already destroyed
183 // this politely asks everybody interested the reduce
184 // the refcount to 0 as soon as possible.
185 MTH void destroy ();
186
187 // return wether an object was destroyed already
188 MTH bool destroyed () const { return flags & F_DESTROYED; }
189
190 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
191
192#if 0
193private:
194 static refcounted *rc_first;
195 refcounted *rc_next;
196#endif
197
198 HV *self; // CF+ perl self
87 AV *cb; // CF+ perl self and callback 199 AV *cb; // CF+ callbacks
88 shstr attach; // generic extension attachment information 200 shstr attach; // generic extension attachment information
89 201
90 void clear (); // called when free'ing objects 202 void sever_self (); // sever this object from its self, if it has one.
91 void optimise (); // possibly save some memory by destroying unneeded data 203 void optimise (); // possibly save some memory by destroying unneeded data
92 void instantiate (data_type type, void *obj);
93 204
94 void attachable_clear ()
95 {
96 self = 0;
97 cb = 0;
98 attach = 0;
99 }
100
101 attachable_base () 205 attachable ()
206 : flags (0), refcnt (0), self (0), cb (0), attach (0)
102 { 207 {
103 attachable_clear ();
104 } 208 }
105 209
106 ~attachable_base ()
107 {
108 clear ();
109 }
110
111 attachable_base (const attachable_base &src) 210 attachable (const attachable &src)
112 : self (0), cb (0), attach (src.attach) 211 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
113 { 212 {
114 } 213 }
115 214
215 // set a custom key to the given value, or delete it if value = 0
216 void set_key (const char *key, const char *value = 0);
217
116 attachable_base &operator = (const attachable_base &src) 218 attachable &operator =(const attachable &src);
117 {
118 clear ();
119 attach = src.attach;
120 return *this;
121 }
122};
123 219
124// objects attachable from perl (or any other extension) should include or 220 // used to _quickly_ device wether to shortcut the evaluation
125// derive using the curiously recurring template pattern, to avoid 221 bool should_invoke (event_type event)
126// virtual method calls etc. 222 {
127template<class subclass> 223 return ev_want_event [event] || cb;
128struct attachable : attachable_base 224 }
129{ 225
226 bool invoke (event_type event, ...);
227
130 void instantiate () 228 MTH void instantiate ();
131 { 229 void reattach ();
132 if (attach)
133 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
134 }
135};
136 230
231protected:
232 // do the real refcount checking work
233 void do_check ();
234
235 // the method that does the real destroy work
236 virtual void do_destroy ();
237
238 // destructor is protected, should not be called by anybody
239 virtual ~attachable ();
240};
241
242// the global object is a pseudo object that cares for the global events
243struct global : attachable
244{
245 void gather_callbacks (AV *&callbacks, event_type event) const;
246};
247
248extern struct global gbl_ev;
249
250//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
251
137struct object_freezer : dynbuf 252struct object_freezer : dynbuf_text
138{ 253{
139 AV *av; 254 AV *av;
140 255
141 object_freezer (); 256 object_freezer ();
142 ~object_freezer (); 257 ~object_freezer ();
143 258
144 void put (attachable_base *ext); 259 void put (attachable *ext);
145
146 template<class subclass>
147 void put (attachable<subclass> *obj)
148 {
149 put ((attachable_base *)obj);
150 }
151 260
152 // used only for user-defined key-value pairs 261 // used only for user-defined key-value pairs
153 void put (const shstr &k, const shstr &v) 262 void put (const shstr &k, const shstr &v)
154 { 263 {
155 add (k); 264 add (k);
156 265
157 if (v) 266 if (expect_true (v))
158 add (' '), add (v); 267 add (' '), add (v);
159 268
160 add ('\n'); 269 add ('\n');
161 } 270 }
162 271
163 //TODO//temporary, used only for saving body locations
164 void put (const char *k, int v)
165 {
166 add (k);
167 add (' ');
168 add (sint32 (v));
169 add ('\n');
170 }
171
172 template<typename T> 272 template<typename T>
173 void put_string (keyword k, const T &v) 273 void put_kw_string (keyword k, const T &v)
174 { 274 {
175 int klen = keyword_len [k]; 275 int klen = keyword_len [k];
176 int vlen = v ? strlen (v) + 1 : 0; 276 int vlen = v ? strlen (v) + 1 : 0;
177 277
178 char *p = (char *)alloc (klen + vlen + 1); 278 char *p = (char *)alloc (klen + vlen + 1);
179 279
180 memcpy (p, keyword_str [k], klen); p += klen; 280 memcpy (p, keyword_str [k], klen); p += klen;
181 281
182 if (v) 282 if (expect_true (v))
183 { 283 {
184 *p++ = ' '; vlen--; 284 *p++ = ' '; vlen--;
185 memcpy (p, v, vlen); p += vlen; 285 memcpy (p, v, vlen); p += vlen;
186 } 286 }
187 287
188 *p = '\n'; 288 *p = '\n';
189 } 289 }
190 290
191 void put (keyword k, const char *v) 291 void put (keyword k, const char *v = 0)
192 { 292 {
193 put_string (k, v); 293 put_kw_string (k, v);
194 } 294 }
195 295
196 void put (keyword k, const shstr &v) 296 void put (keyword k, const shstr &v)
197 { 297 {
198 put_string (k, v); 298 put_kw_string (k, v);
199 } 299 }
200 300
201 void put (keyword k, double v) 301 void put (keyword k, double v)
202 { 302 {
203 char buf [128]; 303 force (MAX_KEYWORD_LEN + 2 + 32);
204 304 fadd (keyword_str [k], keyword_len [k]);
205 snprintf (buf, 128, "%.7g", v); 305 fadd (' ');
206 306 falloc (sprintf (ptr, "%.7g", v));
207 put (k, (const char *)buf); 307 fadd ('\n');
208 } 308 }
209 309
210 void put_(keyword k, sint64 v) 310 void put_(keyword k, sint64 v)
211 { 311 {
312 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
212 add (keyword_str [k], keyword_len [k]); 313 fadd (keyword_str [k], keyword_len [k]);
213 add (' '); 314 fadd (' ');
214 add (v); 315 add (v);
215 add ('\n'); 316 fadd ('\n');
216 } 317 }
217 318
218 void put_(keyword k, sint32 v) 319 void put_(keyword k, sint32 v)
219 { 320 {
321 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
220 add (keyword_str [k], keyword_len [k]); 322 fadd (keyword_str [k], keyword_len [k]);
221 add (' '); 323 fadd (' ');
222 add (v); 324 add (v);
223 add ('\n'); 325 fadd ('\n');
224 }
225
226 void put (keyword kbeg, keyword kend, const shstr &v)
227 {
228 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
229
230 if (v)
231 {
232 add (v);
233 add ('\n');
234 }
235
236 add (keyword_str [kend], keyword_len [kend]); add ('\n');
237 } 326 }
238 327
239 void put (keyword k, float v) { put (k, (double)v); } 328 void put (keyword k, float v) { put (k, (double)v); }
240 void put (keyword k, signed char v) { put_(k, (sint32)v); } 329 void put (keyword k, signed char v) { put_(k, (sint32)v); }
241 void put (keyword k, unsigned char v) { put_(k, (sint32)v); } 330 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
… …
246 void put (keyword k, signed long v) { put_(k, (sint64)v); } 335 void put (keyword k, signed long v) { put_(k, (sint64)v); }
247 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 336 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
248 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 337 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
249 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 338 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
250 339
251 template<typename T> 340 void put (keyword kbeg, keyword kend, const shstr &v)
341 {
342 force (MAX_KEYWORD_LEN + 1);
343 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
344
345 if (expect_true (v))
346 {
347 add (v);
348 add ('\n');
349 }
350
351 force (MAX_KEYWORD_LEN + 1);
352 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
353 }
354
355 void put (keyword k, archetype *v);
356 void put (keyword k, treasurelist *v);
252 void put (keyword k, const T *v) 357 void put (keyword k, faceinfo *v);
253 {
254 if (v)
255 put (k, v->name);
256 else
257 put (k, (const char *)0);
258 }
259 358
260 template<typename T> 359 template<typename T>
261 void put (keyword k, const refptr<T> &v) 360 void put (keyword k, const refptr<T> &v)
262 { 361 {
263 put (k, (T *)v); 362 put (k, (T *)v);
264 } 363 }
265 364
266 bool save (const char *filename); 365 bool save (const char *path);
267 char *as_string (); // like strdup 366 char *as_string (); // like strdup
268 367
269 operator bool () { return !!av; } 368 operator bool () { return !!av; }
270}; 369};
271 370
272// compatibility support, should be removed when no longer needed
273int fprintf (object_freezer &freezer, const char *format, ...);
274int fputs (const char *s, object_freezer &freezer);
275
276struct object_thawer 371struct object_thawer
277{ 372{
373 char *line; // current beginning of line
278 SV *text; // text part 374 SV *text; // text part
279 AV *av; // perl part 375 AV *av; // perl part
280 char *line; // current beginning of line 376 int linenum;
281 char *last_value; 377 keyword kw;
378 char *kw_str; // the keyword parsed, as string
379 char *value; // the value, or 0 if no value
380 char *value_nn; // the value, or the empty string if no value
381 const char *name;
282 382
283 operator bool () { return !!text; } 383 operator bool () { return !!text; }
284 384
285 object_thawer (const char *filename = 0); 385 object_thawer (const char *path = 0);
286 object_thawer (const char *data, AV *perlav); 386 object_thawer (const char *data, AV *perlav);
287 ~object_thawer (); 387 ~object_thawer ();
288 388
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) 389 void get (attachable *obj, int oid);
293 {
294 if (av)
295 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
296 }
297 390
298 keyword get_kv (); // also parse value for later use 391 // parse next line
392 void next ();
393 // skip the current key-value (usually fetch next line, for
394 // multiline-fields, skips till the corresponding end-kw
395 void skip ();
299 396
300 const char *get_str () { return last_value; } // may be 0 397 char *get_str () { return value; } // may be 0
301
302 void get (shstr &sh) const;
303 void get_ornull (shstr &sh) const { sh = last_value; }
304 void get_ml (keyword kend, shstr &sh); 398 void get_ml (keyword kend, shstr &sh);
305 399
400 void get_ornull (shstr &sh) const { sh = value; }
401 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
402
403 bool get_bool () const { return *value_nn == '1'; }
306 sint32 get_sint32 () const; 404 sint32 get_sint32 () const;
307 sint64 get_sint64 () const; 405 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
308 double get_double () const; 406 double get_double () const { return strtod (value_nn, 0); }
309 407
310 void get (float &v) { v = get_double (); } 408 void get (float &v) { v = get_double (); }
311 void get (double &v) { v = get_double (); } 409 void get (double &v) { v = get_double (); }
312 410
411 void get (bool &i) { i = get_bool (); }
313 void get (sint8 &i) { i = get_sint32 (); } 412 void get (sint8 &i) { i = get_sint32 (); }
314 void get (uint8 &i) { i = get_sint32 (); } 413 void get (uint8 &i) { i = get_sint32 (); }
315 void get (sint16 &i) { i = get_sint32 (); } 414 void get (sint16 &i) { i = get_sint32 (); }
316 void get (uint16 &i) { i = get_sint32 (); } 415 void get (uint16 &i) { i = get_sint32 (); }
317 void get (sint32 &i) { i = get_sint32 (); } 416 void get (sint32 &i) { i = get_sint32 (); }
318 417
319 void get (uint32 &i) { i = get_sint64 (); } 418 void get (uint32 &i) { i = get_sint64 (); }
320 void get (sint64 &i) { i = get_sint64 (); } 419 void get (sint64 &i) { i = get_sint64 (); }
321};
322 420
421 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
422};
423
424//TODO: remove
323char *fgets (char *s, int n, object_thawer &thawer); 425char *fgets (char *s, int n, object_thawer &thawer);
324 426
427//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
428
429struct coroapi {
430 static struct CoroAPI *GCoroAPI;
431
432 static int nready () { return CORO_NREADY; }
433 static int cede () { return CORO_CEDE ; }
434
435 static tstamp next_cede;
436 static int cede_counter;
437
438 static void do_cede_every ();
439 static void do_cede_to_tick ();
440 static void do_cede_to_tick_every ();
441
442 static void cede_every (int count)
443 {
444 if (expect_false (++cede_counter >= count))
445 do_cede_every ();
446 }
447
448 static bool cede_to_tick ()
449 {
450 if (expect_true (now () < next_cede))
451 return false;
452
453 do_cede_to_tick ();
454 return true;
455 }
456
457 static bool cede_to_tick_every (int count)
458 {
459 if (expect_true (++cede_counter < count))
460 return false;
461
462 return cede_to_tick ();
463 }
464
465 static void wait_for_tick ();
466 static void wait_for_tick_begin ();
467};
468
469struct watcher_base
470{
471 static struct EventAPI *GEventAPI;
472};
473
474template<class base>
475struct watcher : watcher_base
476{
477 base *pe;
478
479 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
480 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
481 void now () { GEventAPI->now ((pe_watcher *)pe); }
482 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
483 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
484
485 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
486
487 ~watcher ()
488 {
489 cancel ();
490 }
491
492private:
493 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
494};
495
496struct iw : watcher<pe_idle>, callback<void (iw &)>
497{
498 template<class O, class M>
499 iw (O object, M method)
500 : callback<void (iw &)> (object, method)
501 {
502 alloc ();
503 }
504
505private:
506 void alloc ();
507};
508
509struct iow : watcher<pe_io>, callback<void (iow &, int)>
510{
511 template<class O, class M>
512 iow (O object, M method)
513 : callback<void (iow &, int)> (object, method)
514 {
515 alloc ();
516 }
517
518 void fd (int fd);
519 int poll ();
520 void poll (int events);
521
522private:
523 void alloc ();
524};
525
325#endif 526#endif
326 527

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