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Comparing libev/ev++.h (file contents):
Revision 1.9 by root, Tue Nov 27 10:59:10 2007 UTC vs.
Revision 1.19 by root, Fri Dec 14 17:47:52 2007 UTC

… …
3 3
4#include "ev.h" 4#include "ev.h"
5 5
6namespace ev { 6namespace ev {
7 7
8 template<class watcher> 8 template<class ev_watcher, class watcher>
9 class callback 9 struct base : ev_watcher
10 { 10 {
11 struct object { }; 11 #if EV_MULTIPLICITY
12 EV_P;
12 13
13 void *obj; 14 void set (EV_P)
14 void (object::*meth)(watcher &, int);
15
16 /* a proxy is a kind of recipe on how to call a specific class method */
17 struct proxy_base {
18 virtual void call (void *obj, void (object::*meth)(watcher &, int), watcher &w, int) const = 0;
19 };
20 template<class O1, class O2>
21 struct proxy : proxy_base {
22 virtual void call (void *obj, void (object::*meth)(watcher &, int), watcher &w, int e) const
23 { 15 {
24 ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<void (O2::*)(watcher &, int)>(meth))) 16 this->EV_A = EV_A;
25 (w, e);
26 } 17 }
18 #endif
19
20 base ()
21 {
22 ev_init (this, 0);
27 }; 23 }
28 24
29 proxy_base *prxy; 25 void set_ (void *data, void (*cb)(EV_P_ ev_watcher *w, int revents))
30
31 public:
32 template<class O1, class O2>
33 explicit callback (O1 *object, void (O2::*method)(watcher &, int))
34 {
35 static proxy<O1,O2> p;
36 obj = reinterpret_cast<void *>(object);
37 meth = reinterpret_cast<void (object::*)(watcher &, int)>(method);
38 prxy = &p;
39 } 26 {
40 27 this->data = data;
41 void call (watcher *w, int e) const 28 ev_set_cb (static_cast<ev_watcher *>(this), cb);
42 { 29 }
43 return prxy->call (obj, meth, *w, e); 30
31 // method callback
32 template<class K, void (K::*method)(watcher &w, int)>
33 void set (K *object)
34 {
35 set_ (object, method_thunk<K, method>);
36 }
37
38 template<class K, void (K::*method)(watcher &w, int)>
39 static void method_thunk (EV_P_ ev_watcher *w, int revents)
40 {
41 K *obj = static_cast<K *>(w->data);
42 (obj->*method) (*static_cast<watcher *>(w), revents);
43 }
44
45 // const method callback
46 template<class K, void (K::*method)(watcher &w, int) const>
47 void set (const K *object)
48 {
49 set_ (object, const_method_thunk<K, method>);
50 }
51
52 template<class K, void (K::*method)(watcher &w, int) const>
53 static void const_method_thunk (EV_P_ ev_watcher *w, int revents)
54 {
55 K *obj = static_cast<K *>(w->data);
56 (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents);
57 }
58
59 // function callback
60 template<void (*function)(watcher &w, int)>
61 void set (void *data = 0)
62 {
63 set_ (data, function_thunk<function>);
64 }
65
66 template<void (*function)(watcher &w, int)>
67 static void function_thunk (EV_P_ ev_watcher *w, int revents)
68 {
69 function (*static_cast<watcher *>(w), revents);
70 }
71
72 // simple callback
73 template<class K, void (K::*method)()>
74 void set (K *object)
75 {
76 set_ (object, method_noargs_thunk<K, method>);
77 }
78
79 template<class K, void (K::*method)()>
80 static void method_noargs_thunk (EV_P_ ev_watcher *w, int revents)
81 {
82 K *obj = static_cast<K *>(w->data);
83 (obj->*method) ();
84 }
85
86 void operator ()(int events = EV_UNDEF)
87 {
88 return ev_cb (static_cast<ev_watcher *>(this))
89 (static_cast<ev_watcher *>(this), events);
90 }
91
92 bool is_active () const
93 {
94 return ev_is_active (static_cast<const ev_watcher *>(this));
95 }
96
97 bool is_pending () const
98 {
99 return ev_is_pending (static_cast<const ev_watcher *>(this));
44 } 100 }
45 }; 101 };
46 102
47 enum { 103 enum {
48 UNDEF = EV_UNDEF, 104 UNDEF = EV_UNDEF,
… …
68 { 124 {
69 return ev_now (EV_A); 125 return ev_now (EV_A);
70 } 126 }
71 127
72 #if EV_MULTIPLICITY 128 #if EV_MULTIPLICITY
73
74 #define EV_CONSTRUCT(cppstem) \
75 EV_P; \ 129 #define EV_CONSTRUCT \
76 \
77 void set (EV_P) \ 130 (EV_P = EV_DEFAULT) \
78 { \ 131 { \
79 this->EV_A = EV_A; \
80 } \
81 \ 132 set (EV_A); \
82 template<class O1, class O2> \ 133 }
83 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int), EV_P = ev_default_loop (0)) \
84 : callback<cppstem> (object, method), EV_A (EV_A)
85
86 #else 134 #else
87 135 #define EV_CONSTRUCT \
88 #define EV_CONSTRUCT(cppstem) \ 136 () \
89 template<class O1, class O2> \ 137 { \
90 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int)) \ 138 }
91 : callback<cppstem> (object, method)
92
93 #endif 139 #endif
94 140
95 /* using a template here would require quite a bit more lines, 141 /* using a template here would require quite a bit more lines,
96 * so a macro solution was chosen */ 142 * so a macro solution was chosen */
97 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 143 #define EV_BEGIN_WATCHER(cppstem,cstem) \
98 \ 144 \
99 struct cppstem : ev_ ## cstem, callback<cppstem> \ 145 struct cppstem : base<ev_ ## cstem, cppstem> \
100 { \ 146 { \
101 EV_CONSTRUCT (cppstem) \
102 { \
103 ev_init (static_cast<ev_ ## cstem *>(this), thunk); \
104 } \
105 \
106 bool is_active () const \
107 { \
108 return ev_is_active (static_cast<const ev_ ## cstem *>(this)); \
109 } \
110 \
111 bool is_pending () const \
112 { \
113 return ev_is_pending (static_cast<const ev_ ## cstem *>(this)); \
114 } \
115 \
116 void start () \ 147 void start () \
117 { \ 148 { \
118 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 149 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
119 } \ 150 } \
120 \ 151 \
121 void stop () \ 152 void stop () \
122 { \ 153 { \
123 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 154 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
124 } \ 155 } \
125 \ 156 \
126 void operator ()(int events = EV_UNDEF) \
127 { \ 157 cppstem EV_CONSTRUCT \
128 return call (this, events); \
129 } \
130 \ 158 \
131 ~cppstem () \ 159 ~cppstem () \
132 { \ 160 { \
133 stop (); \ 161 stop (); \
134 } \ 162 } \
135 \ 163 \
164 using base<ev_ ## cstem, cppstem>::set; \
165 \
136 private: \ 166 private: \
137 \ 167 \
138 cppstem (const cppstem &o) \ 168 cppstem (const cppstem &o) \
139 : callback<cppstem> (this, (void (cppstem::*)(cppstem &, int))0) \
140 { /* disabled */ } \ 169 { /* disabled */ } \
141 \ 170 \
142 void operator =(const cppstem &o) { /* disabled */ } \ 171 void operator =(const cppstem &o) { /* disabled */ } \
143 \
144 static void thunk (EV_P_ struct ev_ ## cstem *w, int revents) \
145 { \
146 (*static_cast<cppstem *>(w))(revents); \
147 } \
148 \ 172 \
149 public: 173 public:
150 174
151 #define EV_END_WATCHER(cppstem,cstem) \ 175 #define EV_END_WATCHER(cppstem,cstem) \
152 }; 176 };
… …
261 if (active) start (); 285 if (active) start ();
262 } 286 }
263 287
264 void start (const char *path, ev_tstamp interval = 0.) 288 void start (const char *path, ev_tstamp interval = 0.)
265 { 289 {
290 stop ();
266 set (path, interval); 291 set (path, interval);
267 start (); 292 start ();
268 } 293 }
269 294
270 void update () 295 void update ()
… …
286 void set () { } 311 void set () { }
287 EV_END_WATCHER (check, check) 312 EV_END_WATCHER (check, check)
288 313
289 #if EV_EMBED_ENABLE 314 #if EV_EMBED_ENABLE
290 EV_BEGIN_WATCHER (embed, embed) 315 EV_BEGIN_WATCHER (embed, embed)
291 void set (struct ev_loop *loop)
292 {
293 int active = is_active ();
294 if (active) stop ();
295 ev_embed_set (static_cast<ev_embed *>(this), loop);
296 if (active) start ();
297 }
298
299 void start (struct ev_loop *embedded_loop) 316 void start (struct ev_loop *embedded_loop)
300 { 317 {
301 set (embedded_loop); 318 stop ();
319 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
302 start (); 320 start ();
303 } 321 }
304 322
305 void sweep () 323 void sweep ()
306 { 324 {
307 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this)); 325 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
308 } 326 }
309 EV_END_WATCHER (embed, embed) 327 EV_END_WATCHER (embed, embed)
328 #endif
329
330 #if EV_FORK_ENABLE
331 EV_BEGIN_WATCHER (fork, fork)
332 void set () { }
333 EV_END_WATCHER (fork, fork)
310 #endif 334 #endif
311 335
312 #undef EV_CONSTRUCT 336 #undef EV_CONSTRUCT
313 #undef EV_BEGIN_WATCHER 337 #undef EV_BEGIN_WATCHER
314 #undef EV_END_WATCHER 338 #undef EV_END_WATCHER

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