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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.33 by root, Mon Dec 11 22:56:57 2006 UTC vs.
Revision 1.88 by root, Thu Aug 30 07:28:25 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
20#undef readdir 55#undef readdir
21#undef getprotobyname 56#undef getprotobyname
22#undef gethostbyname 57#undef gethostbyname
23#undef ctime 58#undef ctime
24#undef strerror 59#undef strerror
60#undef _
61
62// same here, massive symbol spamming
63#undef do_open
64#undef do_close
65#undef ref
66#undef seed
25 67
26// perl bug #40256: perl does overwrite those with reentrant versions 68// perl bug #40256: perl does overwrite those with reentrant versions
27// but does not initialise their state structures. 69// but does not initialise their state structures.
28#undef random 70#undef random
29#undef crypt 71#undef crypt
30 72
73//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
74
75#define _(msg) (msg)
76#define N_(msg) (msg)
77
78//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
79
80// some macros to simplify perl in-calls
81
82#define CHECK_ERROR \
83 if (SvTRUE (ERRSV)) \
84 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
85
86#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
87#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
88#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
89#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN;
90#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
91
92//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
93
31void cfperl_init (); 94void cfperl_init ();
32void cfperl_main (); 95void cfperl_main ();
96void cfperl_emergency_save ();
97void cfperl_cleanup (int make_core);
98void cfperl_make_book (object *book, int level);
99void cfperl_send_msg (client *ns, int color, const char *type, const char *msg);
100int cfperl_can_merge (object *ob1, object *ob2);
101
102//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
103
104extern tstamp runtime; // virtual server time, excluding time jumps and lag
105extern tstamp NOW; // real time of current server tick
33 106
34enum event_klass 107enum event_klass
35{ 108{
36 KLASS_NONE, 109 KLASS_NONE,
37 KLASS_GLOBAL, 110 KLASS_GLOBAL,
111 KLASS_ATTACHABLE,
112 KLASS_CLIENT,
38 KLASS_PLAYER, 113 KLASS_PLAYER,
39 KLASS_OBJECT, 114 KLASS_OBJECT,
40 KLASS_MAP, 115 KLASS_MAP,
41 KLASS_COMMAND, 116 KLASS_COMMAND,
42}; 117};
47# include "eventinc.h" 122# include "eventinc.h"
48# undef def 123# undef def
49 NUM_EVENT_TYPES 124 NUM_EVENT_TYPES
50}; 125};
51 126
127// in which global events or per-type events are we interested
128extern bitset<NUM_EVENT_TYPES> ev_want_event;
129extern bitset<NUM_TYPES> ev_want_type;
130
52#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 131#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
53#define ARG_INT(v) DT_INT , static_cast<int> (v) 132#define ARG_INT(v) DT_INT , static_cast<int> (v)
54#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 133#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
55#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 134#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
56#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 135#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
57#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l) 136#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
58#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<object *> (o) 137#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
59#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) 138#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
60#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) 139#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
61#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) 140#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
141#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
62#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) 142#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
63#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) 143#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
64 144
65// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 145// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
66 146#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__) 147#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
148#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__) 149#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__)
150#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__) 151#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__) 152#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__)
75 153
76//TODO should index into @result 154//TODO should index into @result
77#define RESULT(idx,type) cfperl_result_ ## type (idx) 155#define RESULT(idx,type) cfperl_result_ ## type (idx)
78#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE) 156#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
79#define RESULT_INT(idx) RESULT(idx, INT) 157#define RESULT_INT(idx) RESULT(idx, INT)
80 158
81bool cfperl_invoke (event_type event, ...);
82int cfperl_result_DOUBLE (int idx); 159double cfperl_result_DOUBLE (int idx);
83int cfperl_result_INT (int idx); 160int cfperl_result_INT (int idx);
84 161
162//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
163
164INTERFACE_CLASS (attachable)
85struct attachable_base 165struct attachable : refcnt_base
86{ 166{
87 SV *self; 167 static MGVTBL vtbl;
168
169 static unordered_vector<attachable *> mortals;
170 MTH static void check_mortals ();
171
172 enum {
173 F_DESTROYED = 0x01,
174 F_DEBUG_TRACE = 0x02,
175 };
176 int ACC (RW, flags);
177
178 // object is delete'd after the refcount reaches 0
179 MTH int refcnt_cnt () const;
180 // check wether the object has died and destroy
181 MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }
182
183 // destroy the object unless it was already destroyed
184 // this politely asks everybody interested the reduce
185 // the refcount to 0 as soon as possible.
186 MTH void destroy ();
187
188 // return wether an object was destroyed already
189 MTH bool destroyed () const { return flags & F_DESTROYED; }
190
191 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
192
193#if 0
194private:
195 static refcounted *rc_first;
196 refcounted *rc_next;
197#endif
198
199 HV *self; // CF+ perl self
88 AV *cb; // CF+ perl self and callback 200 AV *cb; // CF+ callbacks
89 shstr attach; // generic extension attachment information 201 shstr attach; // generic extension attachment information
90 202
91 void clear (); // called when free'ing objects 203 void sever_self (); // sever this object from its self, if it has one.
92 void optimise (); // possibly save some memory by destroying unneeded data 204 void optimise (); // possibly save some memory by destroying unneeded data
93 void instantiate (data_type type, void *obj);
94 205
95 void attachable_clear ()
96 {
97 self = 0;
98 cb = 0;
99 attach = 0;
100 }
101
102 attachable_base () 206 attachable ()
207 : flags (0), self (0), cb (0), attach (0)
103 { 208 {
104 attachable_clear ();
105 } 209 }
106 210
107 ~attachable_base ()
108 {
109 clear ();
110 }
111
112 attachable_base (const attachable_base &src) 211 attachable (const attachable &src)
113 : self (0), cb (0), attach (src.attach) 212 : flags (0), self (0), cb (0), attach (src.attach)
114 { 213 {
115 } 214 }
116 215
216 // set a custom key to the given value, or delete it if value = 0
217 void set_key (const char *key, const char *value = 0, bool is_utf8 = 0);
218
219 void set_key_text (const char *key, const char *value = 0)
220 {
221 set_key (key, value, 1);
222 }
223
224 void set_key_data (const char *key, const char *value = 0)
225 {
226 set_key (key, value, 0);
227 }
228
117 attachable_base &operator = (const attachable_base &src) 229 attachable &operator =(const attachable &src);
118 {
119 clear ();
120 attach = src.attach;
121 return *this;
122 }
123};
124 230
125// objects attachable from perl (or any other extension) should include or 231 // used to _quickly_ device wether to shortcut the evaluation
126// derive using the curiously recurring template pattern, to avoid 232 bool should_invoke (event_type event)
127// virtual method calls etc. 233 {
128template<class subclass> 234 return ev_want_event [event] || cb;
129struct attachable : attachable_base 235 }
130{ 236
237 bool invoke (event_type event, ...);
238
131 void instantiate () 239 MTH void instantiate ();
132 { 240 void reattach ();
133 if (attach)
134 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
135 }
136};
137 241
242protected:
243 // do the real refcount checking work
244 void do_check ();
245
246 // the method that does the real destroy work
247 virtual void do_destroy ();
248
249 // destructor is protected, should not be called by anybody
250 virtual ~attachable ();
251};
252
253// the global object is a pseudo object that cares for the global events
254struct global : attachable
255{
256 void gather_callbacks (AV *&callbacks, event_type event) const;
257};
258
259extern struct global gbl_ev;
260
261//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
262
138struct object_freezer : dynbuf 263struct object_freezer : dynbuf_text
139{ 264{
140 AV *av; 265 AV *av;
141 266
142 object_freezer (); 267 object_freezer ();
143 ~object_freezer (); 268 ~object_freezer ();
144 269
145 void put (attachable_base *ext); 270 void put (attachable *ext);
146
147 template<class subclass>
148 void put (attachable<subclass> *obj)
149 {
150 put ((attachable_base *)obj);
151 }
152 271
153 // used only for user-defined key-value pairs 272 // used only for user-defined key-value pairs
154 void put (const shstr &k, const shstr &v) 273 void put (const shstr &k, const shstr &v)
155 { 274 {
156 add (k); 275 add (k);
157 276
158 if (v) 277 if (expect_true (v))
159 add (' '), add (v); 278 add (' '), add (v);
160 279
161 add ('\n'); 280 add ('\n');
162 } 281 }
163 282
164 //TODO//temporary, used only for saving body locations
165 void put (const char *k, int v)
166 {
167 add (k);
168 add (' ');
169 add (sint32 (v));
170 add ('\n');
171 }
172
173 template<typename T> 283 template<typename T>
174 void put_string (keyword k, const T &v) 284 void put_kw_string (keyword k, const T &v)
175 { 285 {
176 int klen = keyword_len [k]; 286 int klen = keyword_len [k];
177 int vlen = v ? strlen (v) + 1 : 0; 287 int vlen = v ? strlen (v) + 1 : 0;
178 288
179 char *p = (char *)alloc (klen + vlen + 1); 289 char *p = (char *)alloc (klen + vlen + 1);
180 290
181 memcpy (p, keyword_str [k], klen); p += klen; 291 memcpy (p, keyword_str [k], klen); p += klen;
182 292
183 if (v) 293 if (expect_true (v))
184 { 294 {
185 *p++ = ' '; vlen--; 295 *p++ = ' '; vlen--;
186 memcpy (p, v, vlen); p += vlen; 296 memcpy (p, v, vlen); p += vlen;
187 } 297 }
188 298
189 *p = '\n'; 299 *p = '\n';
190 } 300 }
191 301
192 void put (keyword k, const char *v) 302 void put (keyword k, const char *v = 0)
193 { 303 {
194 put_string (k, v); 304 put_kw_string (k, v);
195 } 305 }
196 306
197 void put (keyword k, const shstr &v) 307 void put (keyword k, const shstr &v)
198 { 308 {
199 put_string (k, v); 309 put_kw_string (k, v);
200 } 310 }
201 311
202 void put (keyword k, double v) 312 void put (keyword k, double v)
203 { 313 {
204 char buf [128]; 314 force (MAX_KEYWORD_LEN + 2 + 32);
205 315 fadd (keyword_str [k], keyword_len [k]);
206 snprintf (buf, 128, "%.7g", v); 316 fadd (' ');
207 317 falloc (sprintf (ptr, "%.7g", v));
208 put (k, (const char *)buf); 318 fadd ('\n');
209 } 319 }
210 320
211 void put_(keyword k, sint64 v) 321 void put_(keyword k, sint64 v)
212 { 322 {
323 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
213 add (keyword_str [k], keyword_len [k]); 324 fadd (keyword_str [k], keyword_len [k]);
214 add (' '); 325 fadd (' ');
215 add (v); 326 add (v);
216 add ('\n'); 327 fadd ('\n');
217 } 328 }
218 329
219 void put_(keyword k, sint32 v) 330 void put_(keyword k, sint32 v)
220 { 331 {
332 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
221 add (keyword_str [k], keyword_len [k]); 333 fadd (keyword_str [k], keyword_len [k]);
222 add (' '); 334 fadd (' ');
223 add (v); 335 add (v);
224 add ('\n'); 336 fadd ('\n');
225 }
226
227 void put (keyword kbeg, keyword kend, const shstr &v)
228 {
229 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
230
231 if (v)
232 {
233 add (v);
234 add ('\n');
235 }
236
237 add (keyword_str [kend], keyword_len [kend]); add ('\n');
238 } 337 }
239 338
240 void put (keyword k, float v) { put (k, (double)v); } 339 void put (keyword k, float v) { put (k, (double)v); }
241 void put (keyword k, signed char v) { put_(k, (sint32)v); } 340 void put (keyword k, signed char v) { put_(k, (sint32)v); }
242 void put (keyword k, unsigned char v) { put_(k, (sint32)v); } 341 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
247 void put (keyword k, signed long v) { put_(k, (sint64)v); } 346 void put (keyword k, signed long v) { put_(k, (sint64)v); }
248 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 347 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
249 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 348 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
250 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 349 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
251 350
252 template<typename T> 351 void put (keyword kbeg, keyword kend, const shstr &v)
352 {
353 force (MAX_KEYWORD_LEN + 1);
354 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
355
356 if (expect_true (v))
357 {
358 add (v);
359 add ('\n');
360 }
361
362 force (MAX_KEYWORD_LEN + 1);
363 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
364 }
365
366 void put (keyword k, archetype *v);
367 void put (keyword k, treasurelist *v);
253 void put (keyword k, const T *v) 368 void put (keyword k, faceinfo *v);
254 {
255 if (v)
256 put (k, v->name);
257 else
258 put (k, (const char *)0);
259 }
260 369
261 template<typename T> 370 template<typename T>
262 void put (keyword k, const refptr<T> &v) 371 void put (keyword k, const refptr<T> &v)
263 { 372 {
264 put (k, (T *)v); 373 put (k, (T *)v);
265 } 374 }
266 375
267 bool save (const char *filename); 376 bool save (const char *path);
268 char *as_string (); // like strdup 377 char *as_string (); // like strdup
269 378
270 operator bool () { return !!av; } 379 operator bool () { return !!av; }
271}; 380};
272 381
273// compatibility support, should be removed when no longer needed
274int fprintf (object_freezer &freezer, const char *format, ...);
275int fputs (const char *s, object_freezer &freezer);
276
277struct object_thawer 382struct object_thawer
278{ 383{
384 char *line; // current beginning of line
279 SV *text; // text part 385 SV *text; // text part
280 AV *av; // perl part 386 AV *av; // perl part
281 char *line; // current beginning of line 387 int linenum;
282 char *last_value; 388 keyword kw;
389 char *kw_str; // the keyword parsed, as string
390 char *value; // the value, or 0 if no value
391 char *value_nn; // the value, or the empty string if no value
392 const char *name;
283 393
284 operator bool () { return !!text; } 394 operator bool () { return !!text; }
285 395
286 object_thawer (const char *filename = 0); 396 object_thawer (const char *path = 0);
287 object_thawer (const char *data, AV *perlav); 397 object_thawer (const char *data, AV *perlav);
288 ~object_thawer (); 398 ~object_thawer ();
289 399
290 void get (data_type type, void *obj, attachable_base *ext, int oid);
291
292 template<class subclass>
293 void get (attachable<subclass> *obj, int oid) 400 void get (attachable *obj, int oid);
294 {
295 if (av)
296 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
297 }
298 401
299 keyword get_kv (); // also parse value for later use 402 // parse next line
403 void next ();
404 // skip the current key-value (usually fetch next line, for
405 // multiline-fields, skips till the corresponding end-kw
406 void skip ();
300 407
301 const char *get_str () { return last_value; } // may be 0 408 char *get_str () { return value; } // may be 0
302
303 void get (shstr &sh) const;
304 void get_ornull (shstr &sh) const { sh = last_value; }
305 void get_ml (keyword kend, shstr &sh); 409 void get_ml (keyword kend, shstr &sh);
306 410
411 void get_ornull (shstr &sh) const { sh = value; }
412 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
413
414 bool get_bool () const { return *value_nn == '1'; }
307 sint32 get_sint32 () const; 415 sint32 get_sint32 () const;
308 sint64 get_sint64 () const; 416 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
309 double get_double () const; 417 double get_double () const { return strtod (value_nn, 0); }
310 418
311 void get (float &v) { v = get_double (); } 419 void get (float &v) { v = get_double (); }
312 void get (double &v) { v = get_double (); } 420 void get (double &v) { v = get_double (); }
313 421
422 void get (bool &i) { i = get_bool (); }
314 void get (sint8 &i) { i = get_sint32 (); } 423 void get (sint8 &i) { i = get_sint32 (); }
315 void get (uint8 &i) { i = get_sint32 (); } 424 void get (uint8 &i) { i = get_sint32 (); }
316 void get (sint16 &i) { i = get_sint32 (); } 425 void get (sint16 &i) { i = get_sint32 (); }
317 void get (uint16 &i) { i = get_sint32 (); } 426 void get (uint16 &i) { i = get_sint32 (); }
318 void get (sint32 &i) { i = get_sint32 (); } 427 void get (sint32 &i) { i = get_sint32 (); }
319 428
320 void get (uint32 &i) { i = get_sint64 (); } 429 void get (uint32 &i) { i = get_sint64 (); }
321 void get (sint64 &i) { i = get_sint64 (); } 430 void get (sint64 &i) { i = get_sint64 (); }
322};
323 431
432 void parse_warn (const char *msg);
433 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
434};
435
436//TODO: remove
324char *fgets (char *s, int n, object_thawer &thawer); 437char *fgets (char *s, int n, object_thawer &thawer);
325 438
439//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
440
441struct coroapi {
442 static struct CoroAPI *GCoroAPI;
443
444 static int nready () { return CORO_NREADY; }
445 static int cede () { return CORO_CEDE ; }
446
447 static tstamp next_cede;
448 static int cede_counter;
449
450 static void do_cede_every ();
451 static void do_cede_to_tick ();
452 static void do_cede_to_tick_every ();
453
454 static void cede_every (int count)
455 {
456 if (expect_false (++cede_counter >= count))
457 do_cede_every ();
458 }
459
460 static bool cede_to_tick ()
461 {
462 if (expect_true (now () < next_cede))
463 return false;
464
465 do_cede_to_tick ();
466 return true;
467 }
468
469 static bool cede_to_tick_every (int count)
470 {
471 if (expect_true (++cede_counter < count))
472 return false;
473
474 return cede_to_tick ();
475 }
476
477 static void wait_for_tick ();
478 static void wait_for_tick_begin ();
479};
480
481struct watcher_base
482{
483 static struct EventAPI *GEventAPI;
484};
485
486template<class base>
487struct watcher : watcher_base
488{
489 base *pe;
490
491 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
492 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
493 void now () { GEventAPI->now ((pe_watcher *)pe); }
494 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
495 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
496
497 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
498
499 ~watcher ()
500 {
501 cancel ();
502 }
503
504private:
505 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
506};
507
508struct iw : watcher<pe_idle>, callback<void (iw &)>
509{
510 template<class O, class M>
511 iw (O object, M method)
512 : callback<void (iw &)> (object, method)
513 {
514 alloc ();
515 }
516
517private:
518 void alloc ();
519};
520
521struct iow : watcher<pe_io>, callback<void (iow &, int)>
522{
523 template<class O, class M>
524 iow (O object, M method)
525 : callback<void (iow &, int)> (object, method)
526 {
527 alloc ();
528 }
529
530 void fd (int fd);
531 int poll ();
532 void poll (int events);
533
534private:
535 void alloc ();
536};
537
326#endif 538#endif
327 539

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