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Comparing deliantra/server/include/cfperl.h (file contents):
Revision 1.26 by root, Sat Sep 16 22:24:12 2006 UTC vs.
Revision 1.73 by root, Mon May 28 05:35:51 2007 UTC

… …
2// cfperl.h perl interface 2// cfperl.h perl interface
3// 3//
4#ifndef CFPERL_H__ 4#ifndef CFPERL_H__
5#define CFPERL_H__ 5#define CFPERL_H__
6 6
7#include <cstdarg>
7#include <cstdio> 8#include <cstdio>
9#include <bitset>
8 10
9using namespace std; 11using namespace std;
10 12
11#include <EXTERN.h> 13#include <EXTERN.h>
12#include <perl.h> 14#include <perl.h>
13#include <XSUB.h> 15#include <XSUB.h>
16
17#include <EventAPI.h>
18#include <CoroAPI.h>
19
20#include "util.h"
21#include "keyword.h"
22#include "dynbuf.h"
23#include "callback.h"
24
25//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
14 26
15// optimisations/workaround for functions requiring my_perl in scope (anti-bloat) 27// optimisations/workaround for functions requiring my_perl in scope (anti-bloat)
16#undef localtime 28#undef localtime
17#undef srand48 29#undef srand48
18#undef drand48 30#undef drand48
… …
21#undef getprotobyname 33#undef getprotobyname
22#undef gethostbyname 34#undef gethostbyname
23#undef ctime 35#undef ctime
24#undef strerror 36#undef strerror
25 37
38// same here, massive symbol spamming
39#undef do_open
40#undef do_close
41#undef ref
42#undef seed
43
26// perl bug #40256: perl does overwrite those with reentrant versions 44// perl bug #40256: perl does overwrite those with reentrant versions
27// but does not initialise their state structures. 45// but does not initialise their state structures.
28#undef random 46#undef random
29#undef crypt 47#undef crypt
30 48
49//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
50
51// some macros to simplify perl in-calls
52
53#define CHECK_ERROR \
54 if (SvTRUE (ERRSV)) \
55 LOG (llevError, "runtime error in %s: %s\n", __func__, SvPVutf8_nolen (ERRSV));
56
57#define CALL_BEGIN(args) dSP; ENTER; SAVETMPS; PUSHMARK (SP); EXTEND (SP, args)
58#define CALL_ARG_SV(sv) PUSHs (sv_2mortal (sv)) // separate because no refcount inc
59#define CALL_ARG(expr) PUSHs (sv_2mortal (to_sv (expr)))
60#define CALL_CALL(name, flags) PUTBACK; int count = call_pv (name, (flags) | G_EVAL); SPAGAIN;
61#define CALL_END CHECK_ERROR; FREETMPS; LEAVE
62
63//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
64
31void cfperl_init (); 65void cfperl_init ();
32void cfperl_main (); 66void cfperl_main ();
67void cfperl_emergency_save ();
68void cfperl_cleanup (int make_core);
69void cfperl_make_book (object *book, int level);
70
71//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
72
73// virtual server time, excluding time jumps and lag
74extern double runtime;
33 75
34enum event_klass 76enum event_klass
35{ 77{
36 KLASS_NONE, 78 KLASS_NONE,
37 KLASS_GLOBAL, 79 KLASS_GLOBAL,
80 KLASS_ATTACHABLE,
81 KLASS_CLIENT,
38 KLASS_PLAYER, 82 KLASS_PLAYER,
39 KLASS_OBJECT, 83 KLASS_OBJECT,
40 KLASS_MAP, 84 KLASS_MAP,
85 KLASS_COMMAND,
41}; 86};
42 87
43enum event_type 88enum event_type
44{ 89{
45# define def(klass,name) EVENT_ ## klass ## _ ## name, 90# define def(klass,name) EVENT_ ## klass ## _ ## name,
46# include "eventinc.h" 91# include "eventinc.h"
47# undef def 92# undef def
48 NUM_EVENT_TYPES 93 NUM_EVENT_TYPES
49}; 94};
50 95
96// in which global events or per-type events are we interested
97extern bitset<NUM_EVENT_TYPES> ev_want_event;
98extern bitset<NUM_TYPES> ev_want_type;
99
51#define ARG_AV(o) DT_AV , static_cast<AV *> (o) 100#define ARG_AV(o) DT_AV , static_cast<AV *> (o)
52#define ARG_INT(v) DT_INT , static_cast<int> (v) 101#define ARG_INT(v) DT_INT , static_cast<int> (v)
53#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v) 102#define ARG_INT64(v) DT_INT64 , static_cast<sint64> (v)
54#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v) 103#define ARG_DOUBLE(v) DT_DOUBLE, static_cast<double> (v)
55#define ARG_STRING(v) DT_STRING, static_cast<const char *> (v) 104#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) 105#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) 106#define ARG_OBJECT(o) DT_OBJECT, (void *)(static_cast<object *> (o))
58#define ARG_MAP(o) DT_MAP , (void *)static_cast<maptile *> (o) 107#define ARG_MAP(o) DT_MAP , (void *)(static_cast<maptile *> (o))
59#define ARG_PLAYER(o) DT_PLAYER, (void *)static_cast<player *> (o) 108#define ARG_PLAYER(o) DT_PLAYER, (void *)(static_cast<player *> (o))
60#define ARG_ARCH(o) DT_ARCH , (void *)static_cast<archetype *> (o) 109#define ARG_ARCH(o) DT_ARCH , (void *)(static_cast<archetype *> (o))
110#define ARG_CLIENT(o) DT_CLIENT, (void *)(static_cast<client *> (o))
61#define ARG_PARTY(o) DT_PARTY , (void *)static_cast<party *> (o) 111#define ARG_PARTY(o) DT_PARTY , (void *)(static_cast<party *> (o))
62#define ARG_REGION(o) DT_REGION, (void *)static_cast<region *> (o) 112#define ARG_REGION(o) DT_REGION, (void *)(static_cast<region *> (o))
63 113
64// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension 114// the ", ## __VA_ARGS" is, unfortunately, a gnu-cpp extension
65 115#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__) 116#define INVOKE_GLOBAL(event, ...) INVOKE (&gbl_ev, EVENT_ ## GLOBAL ## _ ## event, ## __VA_ARGS__)
117#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__) 118#define INVOKE_OBJECT(event, obj, ...) INVOKE (obj , EVENT_ ## OBJECT ## _ ## event, ## __VA_ARGS__)
119#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__) 120#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__) 121#define INVOKE_MAP(event, obj, ...) INVOKE (obj , EVENT_ ## MAP ## _ ## event, ## __VA_ARGS__)
74 122
75//TODO should index into @result 123//TODO should index into @result
76#define RESULT(idx,type) cfperl_result_ ## type (idx) 124#define RESULT(idx,type) cfperl_result_ ## type (idx)
125#define RESULT_DOUBLE(idx) RESULT(idx, DOUBLE)
77#define RESULT_INT(idx) RESULT(idx, INT) 126#define RESULT_INT(idx) RESULT(idx, INT)
78 127
79bool cfperl_invoke (event_type event, ...); 128double cfperl_result_DOUBLE (int idx);
80int cfperl_result_INT (int idx); 129int cfperl_result_INT (int idx);
81 130
131//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
132
133INTERFACE_CLASS (attachable)
82struct attachable_base 134struct attachable
83{ 135{
84 SV *self; 136 static MGVTBL vtbl;
137
138 static unordered_vector<attachable *> mortals;
139 MTH static void check_mortals ();
140
141 enum {
142 F_DESTROYED = 0x01,
143 F_DEBUG_TRACE = 0x02,
144 };
145
146 // object is delete'd after the refcount reaches 0
147 int ACC (RW, flags);
148 mutable int ACC (RW, refcnt);
149
150 MTH void refcnt_inc () const { ++refcnt; }
151 MTH void refcnt_dec () const { --refcnt; }
152
153 MTH int refcnt_cnt () const;
154 // check wether the object has died and destroy
155 MTH void refcnt_chk () { if (refcnt <= 0) do_check (); }
156
157 // destroy the object unless it was already destroyed
158 // this politely asks everybody interested the reduce
159 // the refcount to 0 as soon as possible.
160 MTH void destroy ();
161
162 // return wether an object was destroyed already
163 MTH bool destroyed () const { return flags & F_DESTROYED; }
164
165 virtual void gather_callbacks (AV *&callbacks, event_type event) const;
166
167#if 0
168private:
169 static refcounted *rc_first;
170 refcounted *rc_next;
171#endif
172
173 HV *self; // CF+ perl self
85 AV *cb; // CF+ perl self and callback 174 AV *cb; // CF+ callbacks
86 shstr attach; // generic extension attachment information 175 shstr attach; // generic extension attachment information
87 176
88 void clear (); // called when free'ing objects 177 void sever_self (); // sever this object from its self, if it has one.
89 void optimise (); // possibly save some memory by destroying unneeded data 178 void optimise (); // possibly save some memory by destroying unneeded data
90 void instantiate (data_type type, void *obj);
91 179
92 void attachable_clear ()
93 {
94 self = 0;
95 cb = 0;
96 attach = 0;
97 }
98
99 attachable_base () 180 attachable ()
181 : flags (0), refcnt (0), self (0), cb (0), attach (0)
100 { 182 {
101 attachable_clear ();
102 } 183 }
103 184
104 ~attachable_base ()
105 {
106 clear ();
107 }
108
109 attachable_base (const attachable_base &src) 185 attachable (const attachable &src)
110 : self (0), cb (0), attach (src.attach) 186 : flags (0), refcnt (0), self (0), cb (0), attach (src.attach)
111 { 187 {
112 } 188 }
113 189
190 virtual ~attachable ();
191
114 attachable_base &operator = (const attachable_base &src) 192 attachable &operator =(const attachable &src);
115 {
116 clear ();
117 attach = src.attach;
118 return *this;
119 }
120};
121 193
122// objects attachable from perl (or any other extension) should include or 194 // used to _quickly_ device wether to shortcut the evaluation
123// derive using the curiously recurring template pattern, to avoid 195 bool should_invoke (event_type event)
124// virtual method calls etc. 196 {
125template<class subclass> 197 return ev_want_event [event] || cb;
126struct attachable : attachable_base 198 }
127{ 199
200 bool invoke (event_type event, ...);
201
128 void instantiate () 202 MTH void instantiate ();
129 { 203 void reattach ();
130 if (attach)
131 attachable_base::instantiate ((data_type) cftype<subclass>::dt, static_cast<subclass *>(this));
132 }
133};
134 204
205protected:
206 // do the real refcount checking work
207 void do_check ();
208
209 // the method that does the real destroy work
210 virtual void do_destroy ();
211};
212
213// the global object is a pseudo object that cares for the global events
214struct global : attachable
215{
216 void gather_callbacks (AV *&callbacks, event_type event) const;
217};
218
219extern struct global gbl_ev;
220
221//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
222
135struct object_freezer : dynbuf 223struct object_freezer : dynbuf_text
136{ 224{
137 AV *av; 225 AV *av;
138 226
139 object_freezer (); 227 object_freezer ();
140 ~object_freezer (); 228 ~object_freezer ();
141 229
142 void put (attachable_base *ext); 230 void put (attachable *ext);
143 231
144 template<class subclass> 232 // used only for user-defined key-value pairs
145 void put (attachable<subclass> *obj)
146 {
147 put ((attachable_base *)obj);
148 }
149
150 //TODO//temporary
151 void put (const char *k, const char *v) 233 void put (const shstr &k, const shstr &v)
152 { 234 {
153 add (k); 235 add (k);
154 236
155 if (v) 237 if (expect_true (v))
156 add (' '), add (v); 238 add (' '), add (v);
157 239
158 add ('\n'); 240 add ('\n');
159 } 241 }
160 242
161 //TODO//temporary 243 template<typename T>
162 void put (const char *k, int v)
163 {
164 add (k);
165 add (' ');
166 add (sint32 (v));
167 add ('\n');
168 }
169
170#if 1
171 void put (keyword k, const char *v) 244 void put_string (keyword k, const T &v)
172 { 245 {
173 int klen = keyword_len [k]; 246 int klen = keyword_len [k];
174 int vlen = v ? strlen (v) + 1 : 0; 247 int vlen = v ? strlen (v) + 1 : 0;
175 248
176 char *p = (char *)alloc (klen + vlen + 1); 249 char *p = (char *)alloc (klen + vlen + 1);
177 250
178 memcpy (p, keyword_str [k], klen); p += klen; 251 memcpy (p, keyword_str [k], klen); p += klen;
179 252
180 if (v) 253 if (expect_true (v))
181 { 254 {
182 *p++ = ' '; vlen--; //TODO//cf compatibility always add space 255 *p++ = ' '; vlen--;
183 memcpy (p, v, vlen); p += vlen; 256 memcpy (p, v, vlen); p += vlen;
184 } 257 }
185 258
186 *p = '\n'; 259 *p = '\n';
187 } 260 }
188#endif
189 261
190#if 0 262 void put (keyword k, const char *v = 0)
263 {
264 put_string (k, v);
265 }
266
191 void put (keyword k, const shstr &v) 267 void put (keyword k, const shstr &v)
192 { 268 {
193 int klen = keyword_len [k]; 269 put_string (k, v);
194 int vlen = v ? v.length () + 1 : 0;
195
196 char *p = (char *)alloc (klen + vlen + 1);
197
198 memcpy (p, keyword_str [k], klen); p += klen;
199
200 if (v)
201 {
202 *p++ = ' '; vlen--; //TODO//cf compatibility always add space
203 memcpy (p, v, vlen); p += vlen;
204 }
205
206 *p = '\n';
207 } 270 }
208#endif
209 271
210 void put (keyword k, double v) 272 void put (keyword k, double v)
211 { 273 {
212 char buf [128]; 274 force (MAX_KEYWORD_LEN + 2 + 32);
213 275 fadd (keyword_str [k], keyword_len [k]);
214 snprintf (buf, 128, "%.7g", v); 276 fadd (' ');
215 277 falloc (sprintf (ptr, "%.7g", v));
216 put (k, (const char *)buf); 278 fadd ('\n');
217 } 279 }
218 280
219 void put_(keyword k, sint64 v) 281 void put_(keyword k, sint64 v)
220 { 282 {
283 force (MAX_KEYWORD_LEN + 2 + sint64_digits);
221 add (keyword_str [k], keyword_len [k]); 284 fadd (keyword_str [k], keyword_len [k]);
222 add (' '); 285 fadd (' ');
223 add (v); 286 add (v);
224 add ('\n'); 287 fadd ('\n');
225 } 288 }
226 289
227 void put_(keyword k, sint32 v) 290 void put_(keyword k, sint32 v)
228 { 291 {
292 force (MAX_KEYWORD_LEN + 2 + sint32_digits);
229 add (keyword_str [k], keyword_len [k]); 293 fadd (keyword_str [k], keyword_len [k]);
230 add (' '); 294 fadd (' ');
231 add (v); 295 add (v);
232 add ('\n'); 296 fadd ('\n');
233 }
234
235 void put (keyword kbeg, keyword kend, const shstr &v)
236 {
237 add (keyword_str [kbeg], keyword_len [kbeg]); add ('\n');
238
239 if (v)
240 {
241 add (v);
242 add ('\n');
243 }
244
245 add (keyword_str [kend], keyword_len [kend]); add ('\n');
246 } 297 }
247 298
248 void put (keyword k, float v) { put (k, (double)v); } 299 void put (keyword k, float v) { put (k, (double)v); }
249 void put (keyword k, signed char v) { put_(k, (sint32)v); } 300 void put (keyword k, signed char v) { put_(k, (sint32)v); }
250 void put (keyword k, unsigned char v) { put_(k, (sint32)v); } 301 void put (keyword k, unsigned char v) { put_(k, (sint32)v); }
… …
255 void put (keyword k, signed long v) { put_(k, (sint64)v); } 306 void put (keyword k, signed long v) { put_(k, (sint64)v); }
256 void put (keyword k, unsigned long v) { put_(k, (sint64)v); } 307 void put (keyword k, unsigned long v) { put_(k, (sint64)v); }
257 void put (keyword k, signed long long v) { put_(k, (sint64)v); } 308 void put (keyword k, signed long long v) { put_(k, (sint64)v); }
258 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); } 309 void put (keyword k, unsigned long long v) { put_(k, (sint64)v); }
259 310
311 void put (keyword kbeg, keyword kend, const shstr &v)
312 {
313 force (MAX_KEYWORD_LEN + 1);
314 fadd (keyword_str [kbeg], keyword_len [kbeg]); fadd ('\n');
315
316 if (expect_true (v))
317 {
318 add (v);
319 add ('\n');
320 }
321
322 force (MAX_KEYWORD_LEN + 1);
323 fadd (keyword_str [kend], keyword_len [kend]); fadd ('\n');
324 }
325
260 template<typename T> 326 template<typename T>
261 void put (keyword k, T *v) 327 void put (keyword k, const T *v)
262 { 328 {
263 if (v) 329 if (v)
264 put (k, v->name); 330 put (k, v->name);
265 else 331 else
266 put (k, (const char *)0); 332 put (k, (const char *)0);
267 } 333 }
268 334
335 template<typename T>
336 void put (keyword k, const refptr<T> &v)
337 {
338 put (k, (T *)v);
339 }
340
269 bool save (const char *filename); 341 bool save (const char *path);
342 char *as_string (); // like strdup
270 343
271 operator bool () { return !!av; } 344 operator bool () { return !!av; }
272}; 345};
273 346
274// compatibility support, should be removed when no longer needed
275int fprintf (object_freezer &freezer, const char *format, ...);
276int fputs (const char *s, object_freezer &freezer);
277
278struct object_thawer 347struct object_thawer
279{ 348{
349 char *line; // current beginning of line
280 SV *text; // text part 350 SV *text; // text part
281 AV *av; // perl part 351 AV *av; // perl part
282 char *line; // current beginning of line 352 int linenum;
283 char *last_value; 353 keyword kw;
354 char *kw_str; // the keyword parsed, as string
355 char *value; // the value, or 0 if no value
356 char *value_nn; // the value, or the empty string if no value
357 const char *name;
284 358
285 operator bool () { return !!text; } 359 operator bool () { return !!text; }
286 360
287 object_thawer (const char *filename = 0); 361 object_thawer (const char *path = 0);
362 object_thawer (const char *data, AV *perlav);
288 ~object_thawer (); 363 ~object_thawer ();
289 364
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) 365 void get (attachable *obj, int oid);
294 {
295 if (av)
296 get ((data_type) cftype<subclass>::dt, (subclass *)obj, obj, oid);
297 }
298 366
299 keyword get_kv (); // also parse value for later use 367 // parse next line
368 void next ();
369 // skip the current key-value (usually fetch next line, for
370 // multiline-fields, skips till the corresponding end-kw
371 void skip ();
300 372
301 const char *get_str () { return last_value; } // may be 0 373 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); 374 void get_ml (keyword kend, shstr &sh);
306 375
376 void get_ornull (shstr &sh) const { sh = value; }
377 void get (shstr &sh) const { sh = value; } // might want to check for non-null here
378
379 bool get_bool () const { return *value_nn == '1'; }
307 sint32 get_sint32 () const; 380 sint32 get_sint32 () const;
308 sint64 get_sint64 () const; 381 sint64 get_sint64 () const { return strtoll (value_nn, 0, 10); }
309 double get_double () const; 382 double get_double () const { return strtod (value_nn, 0); }
310 383
311 void get (float &v) { v = get_double (); } 384 void get (float &v) { v = get_double (); }
312 void get (double &v) { v = get_double (); } 385 void get (double &v) { v = get_double (); }
313 386
387 void get (bool &i) { i = get_bool (); }
314 void get (sint8 &i) { i = get_sint32 (); } 388 void get (sint8 &i) { i = get_sint32 (); }
315 void get (uint8 &i) { i = get_sint32 (); } 389 void get (uint8 &i) { i = get_sint32 (); }
316 void get (sint16 &i) { i = get_sint32 (); } 390 void get (sint16 &i) { i = get_sint32 (); }
317 void get (uint16 &i) { i = get_sint32 (); } 391 void get (uint16 &i) { i = get_sint32 (); }
318 void get (sint32 &i) { i = get_sint32 (); } 392 void get (sint32 &i) { i = get_sint32 (); }
319 393
320 void get (uint32 &i) { i = get_sint64 (); } 394 void get (uint32 &i) { i = get_sint64 (); }
321 void get (sint64 &i) { i = get_sint64 (); } 395 void get (sint64 &i) { i = get_sint64 (); }
322};
323 396
397 bool parse_error (const char *type = 0, const char *name = 0, bool skip = true);
398};
399
400//TODO: remove
324char *fgets (char *s, int n, object_thawer &thawer); 401char *fgets (char *s, int n, object_thawer &thawer);
325 402
403//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
404
405struct coroapi {
406 static struct CoroAPI *GCoroAPI;
407
408 static int nready () { return CORO_NREADY; }
409 static int cede () { return CORO_CEDE ; }
410
411 static double (*time)();
412 static double next_cede;
413 static int cede_counter;
414
415 static void do_cede_every ();
416 static void do_cede_to_tick ();
417 static void do_cede_to_tick_every ();
418
419 static void cede_every (int count)
420 {
421 if (expect_false (++cede_counter >= count))
422 do_cede_every ();
423 }
424
425 static void cede_to_tick ()
426 {
427 if (expect_false (time () >= next_cede))
428 do_cede_to_tick ();
429 }
430
431 static void cede_to_tick_every (int count)
432 {
433 if (expect_false (++cede_counter >= count))
434 cede_to_tick ();
435 }
436
437 static void wait_for_tick ();
438 static void wait_for_tick_begin ();
439};
440
441struct watcher_base
442{
443 static struct EventAPI *GEventAPI;
444};
445
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)>
482{
483 template<class O, class M>
484 iow (O object, M method)
485 : callback<void (iow &, int)> (object, method)
486 {
487 alloc ();
488 }
489
490 void fd (int fd);
491 int poll ();
492 void poll (int events);
493
494private:
495 void alloc ();
496};
497
326#endif 498#endif
327 499

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