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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.62 by root, Tue Apr 17 10:06:33 2007 UTC vs.
Revision 1.93 by root, Sun Jan 13 12:14:52 2008 UTC

1/*
2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 *
4 * Copyright (©) 2005,2006,2007 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>
14 39
15#include <EventAPI.h> 40#include <EVAPI.h>
16#include <CoroAPI.h> 41#include <CoroAPI.h>
17 42
18#include "util.h" 43#include "util.h"
19#include "keyword.h" 44#include "keyword.h"
20#include "dynbuf.h" 45#include "dynbuf.h"
… …
30#undef readdir 55#undef readdir
31#undef getprotobyname 56#undef getprotobyname
32#undef gethostbyname 57#undef gethostbyname
33#undef ctime 58#undef ctime
34#undef strerror 59#undef strerror
60#undef _
35 61
36// same here, massive symbol spamming 62// same here, massive symbol spamming
37#undef do_open 63#undef do_open
38#undef do_close 64#undef do_close
39#undef ref 65#undef ref
… …
44#undef random 70#undef random
45#undef crypt 71#undef crypt
46 72
47////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 73//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
48 74
75#define _(msg) (msg)
76#define N_(msg) (msg)
77
78//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
79
49// some macros to simplify perl in-calls 80// some macros to simplify perl in-calls
50 81
51#define CHECK_ERROR \ 82#define CHECK_ERROR \
52 if (SvTRUE (ERRSV)) \ 83 if (SvTRUE (ERRSV)) \
53 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV)); 84 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
… …
62 93
63void cfperl_init (); 94void cfperl_init ();
64void cfperl_main (); 95void cfperl_main ();
65void cfperl_emergency_save (); 96void cfperl_emergency_save ();
66void cfperl_cleanup (int make_core); 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);
67 101
68////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 102//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
69 103
70// virtual server time, excluding time jumps and lag 104extern tstamp runtime; // virtual server time, excluding time jumps and lag
71extern double runtime; 105extern tstamp NOW; // real time of current server tick
72 106
73enum event_klass 107enum event_klass
74{ 108{
75 KLASS_NONE, 109 KLASS_NONE,
76 KLASS_GLOBAL, 110 KLASS_GLOBAL,
… …
87# define def(klass,name) EVENT_ ## klass ## _ ## name, 121# define def(klass,name) EVENT_ ## klass ## _ ## name,
88# include "eventinc.h" 122# include "eventinc.h"
89# undef def 123# undef def
90 NUM_EVENT_TYPES 124 NUM_EVENT_TYPES
91}; 125};
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;
92 130
93#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 131#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
94#define ARG_INT(v) DT_INT , static_cast<int> (v) 132#define ARG_INT(v) DT_INT , static_cast<int> (v)
95#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 133#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
96#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 134#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
… …
103#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o)) 141#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
104#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o)) 142#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
105#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o)) 143#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
106 144
107// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 145// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
108 146#define INVOKE(obj,event, ...) (expect_false ((obj)->should_invoke (event)) ? (obj)->invoke (event, ## __VA_ARGS__, DT_END) : 0)
109// all these return true when the normal event processing should be skipped (if any)
110#define INVOKE_GLOBAL(event, ...) gbl_ev.invoke (EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__, DT_END) 147#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
111#define INVOKE_ATTACHABLE(event, obj, ...) (obj)->invoke (EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__, DT_END) 148#define INVOKE_ATTACHABLE(event, obj, ...) INVOKE (obj , EVENT_ ## ATTACHABLE ## _ ## event, ## __VA_ARGS__)
112#define INVOKE_OBJECT(event, obj, ...) (obj)->invoke (EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__, DT_END) 149#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__)
113#define INVOKE_CLIENT(event, obj, ...) (obj)->invoke (EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__, DT_END) 150#define INVOKE_CLIENT(event, obj, ...) INVOKE (obj , EVENT_ ## CLIENT ## _ ## event, ## __VA_ARGS__)
114#define INVOKE_PLAYER(event, obj, ...) (obj)->invoke (EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__, DT_END) 151#define INVOKE_PLAYER(event, obj, ...) INVOKE (obj , EVENT_ ## PLAYER ## _ ## event, ## __VA_ARGS__)
115#define INVOKE_MAP(event, obj, ...) (obj)->invoke (EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__, DT_END) 152#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__)
116 153
117//TODO should index into @result 154//TODO should index into @result
118#define RESULT(idx,type) cfperl_result_ ## type (idx) 155#define RESULT(idx,type) cfperl_result_ ## type (idx)
119#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE) 156#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
120#define RESULT_INT(idx) RESULT(idx, INT) 157#define RESULT_INT(idx) RESULT(idx, INT)
… …
123int cfperl_result_INT (int idx); 160int cfperl_result_INT (int idx);
124 161
125////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 162//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
126 163
127INTERFACE_CLASS (attachable) 164INTERFACE_CLASS (attachable)
128struct attachable 165struct attachable : refcnt_base
129{ 166{
130 static MGVTBL vtbl; 167 static MGVTBL vtbl;
131 168
132 static unordered_vector<attachable *> mortals; 169 static unordered_vector<attachable *> mortals;
133 MTH static void check_mortals (); 170 MTH static void check_mortals ();
134 171
135 enum { 172 enum {
136 F_DESTROYED = 0x01, 173 F_DESTROYED = 0x01,
137 F_DEBUG_TRACE = 0x02, 174 F_DEBUG_TRACE = 0x02,
138 }; 175 };
176 int ACC (RW, flags);
139 177
140 // object is delete'd after the refcount reaches 0 178 // object is delete'd after the refcount reaches 0
141 int ACC (RW, flags);
142 mutable int ACC (RW, refcnt);
143
144 MTH void refcnt_inc () const { ++refcnt; }
145 MTH void refcnt_dec () const { --refcnt; }
146
147 MTH int refcnt_cnt () const; 179 MTH int refcnt_cnt () const;
148 // check wether the object has died and destroy 180 // check wether the object has died and destroy
149 MTH void refcnt_chk () { if (refcnt <= 0) do_check (); } 181 MTH void refcnt_chk () { if (expect_false (refcnt <= 0)) do_check (); }
150 182
151 // destroy the object unless it was already destroyed 183 // destroy the object unless it was already destroyed
152 // this politely asks everybody interested the reduce 184 // this politely asks everybody interested the reduce
153 // the refcount to 0 as soon as possible. 185 // the refcount to 0 as soon as possible.
154 MTH void destroy (); 186 MTH void destroy ();
… …
170 202
171 void sever_self (); // sever this object from its self, if it has one. 203 void sever_self (); // sever this object from its self, if it has one.
172 void optimise (); // possibly save some memory by destroying unneeded data 204 void optimise (); // possibly save some memory by destroying unneeded data
173 205
174 attachable () 206 attachable ()
175 : flags (0), refcnt (0), self (0), cb (0), attach (0) 207 : flags (0), self (0), cb (0), attach (0)
176 { 208 {
177 } 209 }
178 210
179 attachable (const attachable &src) 211 attachable (const attachable &src)
180 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach) 212 : flags (0), self (0), cb (0), attach (src.attach)
181 { 213 {
182 } 214 }
183 215
184 virtual ~attachable (); 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 }
185 228
186 attachable &operator =(const attachable &src); 229 attachable &operator =(const attachable &src);
187 230
231 // used to _quickly_ device wether to shortcut the evaluation
232 bool should_invoke (event_type event)
233 {
234 return ev_want_event [event] || cb;
235 }
236
188 bool invoke (event_type event, ...); 237 bool invoke (event_type event, ...);
238
189 MTH void instantiate (); 239 MTH void instantiate ();
190 void reattach (); 240 void reattach ();
191 241
192protected: 242protected:
193 // do the real refcount checking work 243 // do the real refcount checking work
194 void do_check (); 244 void do_check ();
195 245
196 // the method that does the real destroy work 246 // the method that does the real destroy work
197 virtual void do_destroy (); 247 virtual void do_destroy ();
248
249 // destructor is protected, should not be called by anybody
250 virtual ~attachable ();
198}; 251};
199 252
200// the global object is a pseudo object that cares for the global events 253// the global object is a pseudo object that cares for the global events
201struct global : attachable 254struct global : attachable
202{ 255{
… …
205 258
206extern struct global gbl_ev; 259extern struct global gbl_ev;
207 260
208////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 261//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
209 262
263INTERFACE_CLASS(object_freezer)
210struct object_freezer : dynbuf 264struct object_freezer : dynbuf_text
211{ 265{
212 AV *av; 266 AV *av;
213 267
214 object_freezer (); 268 object_freezer ();
215 ~object_freezer (); 269 ~object_freezer ();
… …
219 // used only for user-defined key-value pairs 273 // used only for user-defined key-value pairs
220 void put (const shstr &k, const shstr &v) 274 void put (const shstr &k, const shstr &v)
221 { 275 {
222 add (k); 276 add (k);
223 277
224 if (v) 278 if (expect_true (v))
225 add (' '), add (v); 279 add (' '), add (v);
226 280
227 add ('\n'); 281 add ('\n');
228 } 282 }
229 283
230 //TODO//temporary, used only for saving body locations
231 void put (const char *k, int v)
232 {
233 add (k);
234 add (' ');
235 add (sint32 (v));
236 add ('\n');
237 }
238
239 template<typename T> 284 template<typename T>
240 void put_string (keyword k, const T &v) 285 void put_kw_string (keyword k, const T &v)
241 { 286 {
242 int klen = keyword_len [k]; 287 int klen = keyword_len [k];
243 int vlen = v ? strlen (v) + 1 : 0; 288 int vlen = v ? strlen (v) + 1 : 0;
244 289
245 char *p = (char *)alloc (klen + vlen + 1); 290 char *p = (char *)alloc (klen + vlen + 1);
246 291
247 memcpy (p, keyword_str [k], klen); p += klen; 292 memcpy (p, keyword_str [k], klen); p += klen;
248 293
249 if (v) 294 if (expect_true (v))
250 { 295 {
251 *p++ = ' '; vlen--; 296 *p++ = ' '; vlen--;
252 memcpy (p, v, vlen); p += vlen; 297 memcpy (p, v, vlen); p += vlen;
253 } 298 }
254 299
255 *p = '\n'; 300 *p = '\n';
256 } 301 }
257 302
258 void put (keyword k, const char *v = 0) 303 void put (keyword k, const char *v = 0)
259 { 304 {
260 put_string (k, v); 305 put_kw_string (k, v);
261 } 306 }
262 307
263 void put (keyword k, const shstr &v) 308 void put (keyword k, const shstr &v)
264 { 309 {
265 put_string (k, v); 310 put_kw_string (k, v);
266 } 311 }
267 312
268 void put (keyword k, double v) 313 void put (keyword k, double v)
269 { 314 {
270 char buf [128]; 315 force (MAX_KEYWORD_LEN + 2 + 32);
271 316 fadd (keyword_str [k], keyword_len [k]);
272 snprintf (buf, 128, "%.7g", v); 317 fadd (' ');
273 318 falloc (sprintf (ptr, "%.7g", v));
274 put (k, (const char *)buf); 319 fadd ('\n');
275 } 320 }
276 321
277 void put_(keyword k, sint64 v) 322 void put_(keyword k, sint64 v)
278 { 323 {
324 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
279 add (keyword_str [k], keyword_len [k]); 325 fadd (keyword_str [k], keyword_len [k]);
280 add (' '); 326 fadd (' ');
281 add (v); 327 add (v);
282 add ('\n'); 328 fadd ('\n');
283 } 329 }
284 330
285 void put_(keyword k, sint32 v) 331 void put_(keyword k, sint32 v)
286 { 332 {
333 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
287 add (keyword_str [k], keyword_len [k]); 334 fadd (keyword_str [k], keyword_len [k]);
288 add (' '); 335 fadd (' ');
289 add (v); 336 add (v);
290 add ('\n'); 337 fadd ('\n');
291 }
292
293 void put (keyword kbeg, keyword kend, const shstr &v)
294 {
295 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
296
297 if (v)
298 {
299 add (v);
300 add ('\n');
301 }
302
303 add (keyword_str [kend], keyword_len [kend]); add ('\n');
304 } 338 }
305 339
306 void put (keyword k, float v) { put (k, (double)v); } 340 void put (keyword k, float v) { put (k, (double)v); }
307 void put (keyword k, signed char v) { put_(k, (sint32)v); } 341 void put (keyword k, signed char v) { put_(k, (sint32)v); }
308 void put (keyword k, unsigned char v) { put_(k, (sint32)v); } 342 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
… …
313 void put (keyword k, signed long v) { put_(k, (sint64)v); } 347 void put (keyword k, signed long v) { put_(k, (sint64)v); }
314 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 348 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
315 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 349 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
316 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 350 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
317 351
318 template<typename T> 352 void put (keyword kbeg, keyword kend, const shstr &v)
353 {
354 force (MAX_KEYWORD_LEN + 1);
355 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
356
357 if (expect_true (v))
358 {
359 add (v);
360 add ('\n');
361 }
362
363 force (MAX_KEYWORD_LEN + 1);
364 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
365 }
366
367 void put (keyword k, archetype *v);
368 void put (keyword k, treasurelist *v);
319 void put (keyword k, const T *v) 369 void put (keyword k, faceinfo *v);
320 {
321 if (v)
322 put (k, v->name);
323 else
324 put (k, (const char *)0);
325 }
326 370
327 template<typename T> 371 template<typename T>
328 void put (keyword k, const refptr<T> &v) 372 void put (keyword k, const refptr<T> &v)
329 { 373 {
330 put (k, (T *)v); 374 put (k, (T *)v);
331 } 375 }
332 376
333 bool save (const char *path); 377 MTH bool save (const_octet_string path);
334 char *as_string (); // like strdup 378 char *as_string (); // like strdup
335 379
336 operator bool () { return !!av; } 380 operator bool () { return !!av; }
337}; 381};
338 382
339// compatibility support, should be removed when no longer needed 383INTERFACE_CLASS(object_thawer)
340void fprintf (object_freezer &freezer, const char *format, ...);
341void fputs (const char *s, object_freezer &freezer);
342
343struct object_thawer 384struct object_thawer
344{ 385{
386 char *line; // current beginning of line
345 SV *text; // text part 387 SV *text; // text part
346 AV *av; // perl part 388 AV *av; // perl part
347 int linenum; 389 int linenum;
348 char *line; // current beginning of line
349 keyword kw; 390 keyword kw;
350 char *kw_str, *value; 391 char *kw_str; // the keyword parsed, as string
392 char *value; // the value, or 0 if no value
393 const char *value_nn; // the value, or the empty string if no value
351 const char *name; 394 const char *name;
352 395
353 operator bool () { return !!text; } 396 operator bool () const { return !!text; }
354 397
355 object_thawer (const char *path = 0); 398 object_thawer (const char *path = 0);
356 object_thawer (const char *data, AV *perlav); 399 object_thawer (const char *data, AV *perlav);
357 ~object_thawer (); 400 ~object_thawer ();
358 401
359 void get (attachable *obj, int oid); 402 void get (attachable *obj, int oid);
360 403
361 // parse next line 404 // parse next line
362 void next (); 405 MTH void next ();
363 // skip the current key-value (usually fetch next line, for 406 // skip the current key-value (usually fetch next line, for
364 // multiline-fields, skips untilt he corresponding end-kw 407 // multiline-fields, skips till the corresponding end-kw
365 void skip (); 408 MTH void skip ();
366 409 MTH void skip_block (); // skips till and over KW_end
367 //TODO: remove, deprecated
368 keyword get_kv ()
369 {
370 next ();
371 return kw;
372 }
373 410
374 char *get_str () { return value; } // may be 0 411 char *get_str () { return value; } // may be 0
412 void get_ml (keyword kend, shstr &sh);
375 413
376 void get (shstr &sh) const;
377 void get_ornull (shstr &sh) const { sh = value; } 414 void get_ornull (shstr &sh) const { sh = value; }
378 void get_ml (keyword kend, shstr &sh); 415 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
379 416
417 bool get_bool () const { return *value_nn == '1'; }
380 sint32 get_sint32 () const; 418 sint32 get_sint32 () const;
381 sint64 get_sint64 () const; 419 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
382 double get_double () const; 420 double get_double () const { return strtod (value_nn, 0); }
383 421
384 void get (float &v) { v = get_double (); } 422 void get (float &v) { v = get_double (); }
385 void get (double &v) { v = get_double (); } 423 void get (double &v) { v = get_double (); }
386 424
387 void get (bool &i) { i = get_sint32 (); } 425 void get (bool &i) { i = get_bool (); }
388 void get (sint8 &i) { i = get_sint32 (); } 426 void get (sint8 &i) { i = get_sint32 (); }
389 void get (uint8 &i) { i = get_sint32 (); } 427 void get (uint8 &i) { i = get_sint32 (); }
390 void get (sint16 &i) { i = get_sint32 (); } 428 void get (sint16 &i) { i = get_sint32 (); }
391 void get (uint16 &i) { i = get_sint32 (); } 429 void get (uint16 &i) { i = get_sint32 (); }
392 void get (sint32 &i) { i = get_sint32 (); } 430 void get (sint32 &i) { i = get_sint32 (); }
393 431
394 void get (uint32 &i) { i = get_sint64 (); } 432 void get (uint32 &i) { i = get_sint64 (); }
395 void get (sint64 &i) { i = get_sint64 (); } 433 void get (sint64 &i) { i = get_sint64 (); }
396 434
435 MTH void parse_warn (const char *msg);
397 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true); 436 MTH bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
437
438 struct delayed_ref {
439 attachable *op;
440 object_ptr *ptr;
441 const char *ref;
442 };
443 std::vector<delayed_ref> delrefs;
444
445 void delayed_deref (attachable *op, object_ptr &ptr, const char *ref);
446 MTH void resolve_delayed_derefs (bool deref = true);
398}; 447};
399 448
400//TODO: remove 449//TODO: remove
401char *fgets (char *s, int n, object_thawer &thawer); 450char *fgets (char *s, int n, object_thawer &thawer);
402 451
… …
406 static struct CoroAPI *GCoroAPI; 455 static struct CoroAPI *GCoroAPI;
407 456
408 static int nready () { return CORO_NREADY; } 457 static int nready () { return CORO_NREADY; }
409 static int cede () { return CORO_CEDE ; } 458 static int cede () { return CORO_CEDE ; }
410 459
411 static double (*time)();
412 static double next_cede; 460 static tstamp next_cede;
413 static int cede_counter; 461 static int cede_counter;
414 462
415 static void do_cede_every (); 463 static void do_cede_every ();
416 static void do_cede_to_tick (); 464 static void do_cede_to_tick ();
417 static void do_cede_to_tick_every (); 465 static void do_cede_to_tick_every ();
418 466
419 static void cede_every (int count) 467 static void cede_every (int count)
420 { 468 {
421 if (++cede_counter >= count) 469 if (expect_false (++cede_counter >= count))
422 do_cede_every (); 470 do_cede_every ();
423 } 471 }
424 472
425 static void cede_to_tick () 473 static bool cede_to_tick ()
426 { 474 {
427 if (time () >= next_cede) 475 if (expect_true (now () < next_cede))
476 return false;
477
428 do_cede_to_tick (); 478 do_cede_to_tick ();
479 return true;
429 } 480 }
430 481
431 static void cede_to_tick_every (int count) 482 static bool cede_to_tick_every (int count)
432 { 483 {
433 if (++cede_counter >= count) 484 if (expect_true (++cede_counter < count))
485 return false;
486
434 cede_to_tick (); 487 return cede_to_tick ();
435 } 488 }
436 489
437 static void wait_for_tick (); 490 static void wait_for_tick ();
438 static void wait_for_tick_begin (); 491 static void wait_for_tick_begin ();
439}; 492};
440 493
441struct watcher_base 494struct evapi
442{ 495{
443 static struct EventAPI *GEventAPI; 496 static struct EVAPI *GEVAPI;
444}; 497};
445 498
446template<class base>
447struct watcher : watcher_base
448{
449 base *pe;
450
451 void start (bool repeat = false) { GEventAPI->start ((pe_watcher *)pe, repeat); }
452 void stop (bool cancel_events = false) { GEventAPI->stop ((pe_watcher *)pe, cancel_events); }
453 void now () { GEventAPI->now ((pe_watcher *)pe); }
454 void suspend () { GEventAPI->suspend ((pe_watcher *)pe); }
455 void resume () { GEventAPI->resume ((pe_watcher *)pe); }
456
457 void prio (int new_prio) { ((pe_watcher *)pe)->prio = new_prio; }
458
459 ~watcher ()
460 {
461 cancel ();
462 }
463
464private:
465 void cancel () { GEventAPI->cancel ((pe_watcher *)pe); } // private
466};
467
468struct iw : watcher<pe_idle>, callback<void (iw &)>
469{
470 template<class O, class M>
471 iw (O object, M method)
472 : callback<void (iw &)> (object, method)
473 {
474 alloc ();
475 }
476
477private:
478 void alloc ();
479};
480
481struct iow : watcher<pe_io>, callback<void (iow &, int)> 499struct iow : ev_io, evapi, callback<void (iow &, int)>
482{ 500{
501 static void thunk (EV_P_ struct ev_io *w_, int revents)
502 {
503 iow &w = *static_cast<iow *>(w_);
504
505 w (w, revents);
506 }
507
483 template<class O, class M> 508 template<class O, class M>
484 iow (O object, M method) 509 iow (O object, M method)
485 : callback<void (iow &, int)> (object, method) 510 : callback<void (iow &, int)> (object, method)
486 { 511 {
487 alloc (); 512 ev_init ((ev_io *)this, thunk);
488 } 513 }
489 514
490 void fd (int fd); 515 void set (int fd, int events)
491 int poll (); 516 {
517 ev_io_set ((ev_io *)this, fd, events);
518 }
519
520 int poll () const { return events; }
521
492 void poll (int events); 522 void poll (int events);
493 523
494private: 524 void start ()
495 void alloc (); 525 {
526 ev_io_start (EV_DEFAULT, (ev_io *)this);
527 }
528
529 void stop ()
530 {
531 ev_io_stop (EV_DEFAULT, (ev_io *)this);
532 }
533
534 ~iow ()
535 {
536 stop ();
537 }
496}; 538};
497 539
498#endif 540#endif
499 541

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