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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.22 by root, Mon Sep 4 11:07:59 2006 UTC vs.
Revision 1.87 by root, Thu Aug 16 06:36:56 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,
116 KLASS_COMMAND,
41}; 117};
42 118
43enum event_type 119enum event_type
44{ 120{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 121# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 122# include "eventinc.h"
47# undef def 123# undef def
48 NUM_EVENT_TYPES 124 NUM_EVENT_TYPES
49}; 125};
50 126
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
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 131#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
52#define ARG_INT(v) DT_INT , static_cast<int> (v) 132#define ARG_INT(v) DT_INT , static_cast<int> (v)
53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 133#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 134#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 135#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v)
56#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), (l) 136#define ARG_DATA(s,l) DT_DATA , static_cast<const void *> (s), int (l)
57#define ARG_OBJECT(o) DT_OBJECT, (void *)static_cast<struct object *> (o) 137#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
58#define ARG_MAP(o) DT_MAP , (void *)static_cast<struct mapstruct *> (o) 138#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<struct pl *> (o) 139#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<struct 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))
61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<struct party *> (o) 142#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
62#define ARG_REGION(o) DT_REGION, (void *)static_cast<struct region *> (o) 143#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
63 144
64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 145// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
65 146#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__) 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__)
71#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__)
72#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__)
73#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__)
74 153
75//TODO should index into @result 154//TODO should index into @result
76#define RESULT(idx,type) cfperl_result_ ## type (idx) 155#define RESULT(idx,type) cfperl_result_ ## type (idx)
156#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
77#define RESULT_INT(idx) RESULT(idx, INT) 157#define RESULT_INT(idx) RESULT(idx, INT)
78 158
79bool cfperl_invoke (event_type event, ...); 159double cfperl_result_DOUBLE (int idx);
80int cfperl_result_INT (int idx); 160int cfperl_result_INT (int idx);
81 161
162//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
163
164INTERFACE_CLASS (attachable)
82struct attachable_base 165struct attachable : refcnt_base
83{ 166{
84 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
85 AV *cb; // CF+ perl self and callback 200 AV *cb; // CF+ callbacks
86 shstr attach; // generic extension attachment information 201 shstr attach; // generic extension attachment information
87 202
88 void clear (); // called when free'ing objects 203 void sever_self (); // sever this object from its self, if it has one.
89 void optimise (); // possibly save some memory by destroying unneeded data 204 void optimise (); // possibly save some memory by destroying unneeded data
90 void instantiate (data_type type, void *obj);
91 205
92 void attachable_clear ()
93 {
94 self = 0;
95 cb = 0;
96 attach = 0;
97 }
98
99 attachable_base () 206 attachable ()
207 : flags (0), self (0), cb (0), attach (0)
100 { 208 {
101 attachable_clear ();
102 } 209 }
103 210
104 attachable_base (const attachable_base &src) 211 attachable (const attachable &src)
105 : self (0), cb (0), attach (src.attach) 212 : flags (0), self (0), cb (0), attach (src.attach)
106 { 213 {
107 } 214 }
108};
109 215
110// objects attachable from perl (or any other extension) should include or 216 // set a custom key to the given value, or delete it if value = 0
111// derive using the curiously recurring template pattern, to avoid 217 void set_key (const char *key, const char *value = 0);
112// virtual method calls etc. 218
113template<class subclass> 219 attachable &operator =(const attachable &src);
114struct attachable : attachable_base 220
115{ 221 // used to _quickly_ device wether to shortcut the evaluation
222 bool should_invoke (event_type event)
223 {
224 return ev_want_event [event] || cb;
225 }
226
227 bool invoke (event_type event, ...);
228
116 void instantiate () 229 MTH void instantiate ();
117 { 230 void reattach ();
118 if (attach)
119 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
120 }
121};
122 231
232protected:
233 // do the real refcount checking work
234 void do_check ();
235
236 // the method that does the real destroy work
237 virtual void do_destroy ();
238
239 // destructor is protected, should not be called by anybody
240 virtual ~attachable ();
241};
242
243// the global object is a pseudo object that cares for the global events
244struct global : attachable
245{
246 void gather_callbacks (AV *&callbacks, event_type event) const;
247};
248
249extern struct global gbl_ev;
250
251//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
252
123struct object_freezer : dynbuf 253struct object_freezer : dynbuf_text
124{ 254{
125 AV *av; 255 AV *av;
126 256
127 object_freezer (); 257 object_freezer ();
128 ~object_freezer (); 258 ~object_freezer ();
129 259
130 void put (attachable_base *ext); 260 void put (attachable *ext);
131 261
132 template<class subclass> 262 // used only for user-defined key-value pairs
133 void put (attachable<subclass> *obj)
134 {
135 put ((attachable_base *)obj);
136 }
137
138 //TODO//temporary
139 void put (const char *k, const char *v) 263 void put (const shstr &k, const shstr &v)
140 { 264 {
141 add (k); 265 add (k);
142 266
143 if (v) 267 if (expect_true (v))
144 add (' '), add (v); 268 add (' '), add (v);
145 269
146 add ('\n'); 270 add ('\n');
147 } 271 }
148 272
149 //TODO//temporary 273 template<typename T>
150 void put (const char *k, int v)
151 {
152 add (k);
153 add (' ');
154 add (sint32 (v));
155 add ('\n');
156 }
157
158#if 1
159 void put (keyword k, const char *v) 274 void put_kw_string (keyword k, const T &v)
160 { 275 {
161 int klen = keyword_len [k]; 276 int klen = keyword_len [k];
162 int vlen = v ? strlen (v) + 1 : 0; 277 int vlen = v ? strlen (v) + 1 : 0;
163 278
164 char *p = (char *)alloc (klen + vlen + 1); 279 char *p = (char *)alloc (klen + vlen + 1);
165 280
166 memcpy (p, keyword_str [k], klen); p += klen; 281 memcpy (p, keyword_str [k], klen); p += klen;
167 282
168 if (v) 283 if (expect_true (v))
169 { 284 {
170 *p++ = ' '; vlen--; //TODO//cf compatibility always add space 285 *p++ = ' '; vlen--;
171 memcpy (p, v, vlen); p += vlen; 286 memcpy (p, v, vlen); p += vlen;
172 } 287 }
173 288
174 *p = '\n'; 289 *p = '\n';
175 } 290 }
176#endif
177 291
178#if 0 292 void put (keyword k, const char *v = 0)
293 {
294 put_kw_string (k, v);
295 }
296
179 void put (keyword k, const shstr &v) 297 void put (keyword k, const shstr &v)
180 { 298 {
181 int klen = keyword_len [k]; 299 put_kw_string (k, v);
182 int vlen = v ? v.length () + 1 : 0;
183
184 char *p = (char *)alloc (klen + vlen + 1);
185
186 memcpy (p, keyword_str [k], klen); p += klen;
187
188 if (v)
189 {
190 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
191 memcpy (p, v, vlen); p += vlen;
192 }
193
194 *p = '\n';
195 } 300 }
196#endif
197 301
198 void put (keyword k, double v) 302 void put (keyword k, double v)
199 { 303 {
200 char buf [128]; 304 force (MAX_KEYWORD_LEN + 2 + 32);
201 305 fadd (keyword_str [k], keyword_len [k]);
202 snprintf (buf, 128, "%.7g", v); 306 fadd (' ');
203 307 falloc (sprintf (ptr, "%.7g", v));
204 put (k, (const char *)buf); 308 fadd ('\n');
205 } 309 }
206 310
207 void put_(keyword k, sint64 v) 311 void put_(keyword k, sint64 v)
208 { 312 {
313 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
209 add (keyword_str [k], keyword_len [k]); 314 fadd (keyword_str [k], keyword_len [k]);
210 add (' '); 315 fadd (' ');
211 add (v); 316 add (v);
212 add ('\n'); 317 fadd ('\n');
213 } 318 }
214 319
215 void put_(keyword k, sint32 v) 320 void put_(keyword k, sint32 v)
216 { 321 {
322 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
217 add (keyword_str [k], keyword_len [k]); 323 fadd (keyword_str [k], keyword_len [k]);
218 add (' '); 324 fadd (' ');
219 add (v); 325 add (v);
220 add ('\n'); 326 fadd ('\n');
221 }
222
223 void put (keyword kbeg, keyword kend, const char *v)
224 {
225 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
226
227 if (v)
228 {
229 add (v);
230 add ('\n');
231 }
232
233 add (keyword_str [kend], keyword_len [kend]); add ('\n');
234 } 327 }
235 328
236 void put (keyword k, float v) { put (k, (double)v); } 329 void put (keyword k, float v) { put (k, (double)v); }
237 void put (keyword k, signed char v) { put_(k, (sint32)v); } 330 void put (keyword k, signed char v) { put_(k, (sint32)v); }
238 void put (keyword k, unsigned char v) { put_(k, (sint32)v); } 331 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
243 void put (keyword k, signed long v) { put_(k, (sint64)v); } 336 void put (keyword k, signed long v) { put_(k, (sint64)v); }
244 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 337 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
245 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 338 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
246 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 339 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
247 340
341 void put (keyword kbeg, keyword kend, const shstr &v)
342 {
343 force (MAX_KEYWORD_LEN + 1);
344 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
345
346 if (expect_true (v))
347 {
348 add (v);
349 add ('\n');
350 }
351
352 force (MAX_KEYWORD_LEN + 1);
353 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
354 }
355
356 void put (keyword k, archetype *v);
357 void put (keyword k, treasurelist *v);
358 void put (keyword k, faceinfo *v);
359
248 template<typename T> 360 template<typename T>
249 void put (keyword k, T *v) 361 void put (keyword k, const refptr<T> &v)
250 { 362 {
251 put (k, v ? (const char *)v->name : 0); 363 put (k, (T *)v);
252 } 364 }
253 365
254 bool save (const char *filename); 366 bool save (const char *path);
367 char *as_string (); // like strdup
255 368
256 operator bool () { return !!av; } 369 operator bool () { return !!av; }
257}; 370};
258 371
259// compatibility support, should be removed when no longer needed
260int fprintf (object_freezer &freezer, const char *format, ...);
261int fputs (const char *s, object_freezer &freezer);
262
263struct object_thawer 372struct object_thawer
264{ 373{
374 char *line; // current beginning of line
265 SV *text; // text part 375 SV *text; // text part
266 AV *av; // perl part 376 AV *av; // perl part
267 char *line; // current beginning of line 377 int linenum;
268 char *last_value; 378 keyword kw;
379 char *kw_str; // the keyword parsed, as string
380 char *value; // the value, or 0 if no value
381 char *value_nn; // the value, or the empty string if no value
382 const char *name;
269 383
270 operator bool () { return !!text; } 384 operator bool () { return !!text; }
271 385
272 object_thawer (const char *filename = 0); 386 object_thawer (const char *path = 0);
387 object_thawer (const char *data, AV *perlav);
273 ~object_thawer (); 388 ~object_thawer ();
274 389
275 void get (data_type type, void *obj, attachable_base *ext, int oid);
276
277 template<class subclass>
278 void get (attachable<subclass> *obj, int oid) 390 void get (attachable *obj, int oid);
279 {
280 if (av)
281 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
282 }
283 391
284 keyword get_kv (); // also parse value for later use 392 // parse next line
393 void next ();
394 // skip the current key-value (usually fetch next line, for
395 // multiline-fields, skips till the corresponding end-kw
396 void skip ();
285 397
286 const char *get_str () { return last_value; } // may be 0 398 char *get_str () { return value; } // may be 0
287
288 void get (shstr &sh) const;
289 void get_ornull (shstr &sh) const { sh = last_value; }
290 void get_ml (keyword kend, shstr &sh); 399 void get_ml (keyword kend, shstr &sh);
291 400
401 void get_ornull (shstr &sh) const { sh = value; }
402 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
403
404 bool get_bool () const { return *value_nn == '1'; }
292 sint32 get_sint32 () const; 405 sint32 get_sint32 () const;
293 sint64 get_sint64 () const; 406 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
294 double get_double () const; 407 double get_double () const { return strtod (value_nn, 0); }
295 408
296 void get (float &v) { v = get_double (); } 409 void get (float &v) { v = get_double (); }
297 void get (double &v) { v = get_double (); } 410 void get (double &v) { v = get_double (); }
298 411
412 void get (bool &i) { i = get_bool (); }
299 void get (sint8 &i) { i = get_sint32 (); } 413 void get (sint8 &i) { i = get_sint32 (); }
300 void get (uint8 &i) { i = get_sint32 (); } 414 void get (uint8 &i) { i = get_sint32 (); }
301 void get (sint16 &i) { i = get_sint32 (); } 415 void get (sint16 &i) { i = get_sint32 (); }
302 void get (uint16 &i) { i = get_sint32 (); } 416 void get (uint16 &i) { i = get_sint32 (); }
303 void get (sint32 &i) { i = get_sint32 (); } 417 void get (sint32 &i) { i = get_sint32 (); }
304 418
305 void get (uint32 &i) { i = get_sint64 (); } 419 void get (uint32 &i) { i = get_sint64 (); }
306 void get (sint64 &i) { i = get_sint64 (); } 420 void get (sint64 &i) { i = get_sint64 (); }
307};
308 421
422 void parse_warn (const char *msg);
423 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
424};
425
426//TODO: remove
309char *fgets (char *s, int n, object_thawer &thawer); 427char *fgets (char *s, int n, object_thawer &thawer);
310 428
429//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
430
431struct coroapi {
432 static struct CoroAPI *GCoroAPI;
433
434 static int nready () { return CORO_NREADY; }
435 static int cede () { return CORO_CEDE ; }
436
437 static tstamp next_cede;
438 static int cede_counter;
439
440 static void do_cede_every ();
441 static void do_cede_to_tick ();
442 static void do_cede_to_tick_every ();
443
444 static void cede_every (int count)
445 {
446 if (expect_false (++cede_counter >= count))
447 do_cede_every ();
448 }
449
450 static bool cede_to_tick ()
451 {
452 if (expect_true (now () < next_cede))
453 return false;
454
455 do_cede_to_tick ();
456 return true;
457 }
458
459 static bool cede_to_tick_every (int count)
460 {
461 if (expect_true (++cede_counter < count))
462 return false;
463
464 return cede_to_tick ();
465 }
466
467 static void wait_for_tick ();
468 static void wait_for_tick_begin ();
469};
470
471struct watcher_base
472{
473 static struct EventAPI *GEventAPI;
474};
475
476template<class base>
477struct watcher : watcher_base
478{
479 base *pe;
480
481 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
482 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
483 void now () { GEventAPI->now ((pe_watcher *)pe); }
484 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
485 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
486
487 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
488
489 ~watcher ()
490 {
491 cancel ();
492 }
493
494private:
495 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
496};
497
498struct iw : watcher<pe_idle>, callback<void (iw &)>
499{
500 template<class O, class M>
501 iw (O object, M method)
502 : callback<void (iw &)> (object, method)
503 {
504 alloc ();
505 }
506
507private:
508 void alloc ();
509};
510
511struct iow : watcher<pe_io>, callback<void (iow &, int)>
512{
513 template<class O, class M>
514 iow (O object, M method)
515 : callback<void (iow &, int)> (object, method)
516 {
517 alloc ();
518 }
519
520 void fd (int fd);
521 int poll ();
522 void poll (int events);
523
524private:
525 void alloc ();
526};
527
311#endif 528#endif
312 529

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