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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 1.18 by root, Tue Dec 11 03:18:33 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 template<class K, void (K::*method)(watcher &w, int)>
32 void set (K *object)
33 {
34 set_ (object, method_thunk<K, method>);
35 }
36
37 template<class K, void (K::*method)(watcher &w, int)>
38 static void method_thunk (EV_P_ ev_watcher *w, int revents)
39 {
40 K *obj = static_cast<K *>(w->data);
41 (obj->*method) (*static_cast<watcher *>(w), revents);
42 }
43
44 template<class K, void (K::*method)(watcher &w, int) const>
45 void set (const K *object)
46 {
47 set_ (object, const_method_thunk<K, method>);
48 }
49
50 template<class K, void (K::*method)(watcher &w, int) const>
51 static void const_method_thunk (EV_P_ ev_watcher *w, int revents)
52 {
53 K *obj = static_cast<K *>(w->data);
54 (static_cast<K *>(w->data)->*method) (*static_cast<watcher *>(w), revents);
55 }
56
57 template<void (*function)(watcher &w, int)>
58 void set (void *data = 0)
59 {
60 set_ (data, function_thunk<function>);
61 }
62
63 template<void (*function)(watcher &w, int)>
64 static void function_thunk (EV_P_ ev_watcher *w, int revents)
65 {
66 function (*static_cast<watcher *>(w), revents);
67 }
68
69 void operator ()(int events = EV_UNDEF)
70 {
71 return ev_cb (static_cast<ev_watcher *>(this))
72 (static_cast<ev_watcher *>(this), events);
73 }
74
75 bool is_active () const
76 {
77 return ev_is_active (static_cast<const ev_watcher *>(this));
78 }
79
80 bool is_pending () const
81 {
82 return ev_is_pending (static_cast<const ev_watcher *>(this));
44 } 83 }
45 }; 84 };
46 85
47 enum { 86 enum {
48 UNDEF = EV_UNDEF, 87 UNDEF = EV_UNDEF,
… …
68 { 107 {
69 return ev_now (EV_A); 108 return ev_now (EV_A);
70 } 109 }
71 110
72 #if EV_MULTIPLICITY 111 #if EV_MULTIPLICITY
73
74 #define EV_CONSTRUCT(cppstem) \
75 EV_P; \ 112 #define EV_CONSTRUCT \
76 \
77 void set (EV_P) \ 113 (EV_P = EV_DEFAULT) \
78 { \ 114 { \
79 this->EV_A = EV_A; \
80 } \
81 \ 115 set (EV_A); \
82 template<class O1, class O2> \ 116 }
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 117 #else
87 118 #define EV_CONSTRUCT \
88 #define EV_CONSTRUCT(cppstem) \ 119 () \
89 template<class O1, class O2> \ 120 { \
90 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int)) \ 121 }
91 : callback<cppstem> (object, method)
92
93 #endif 122 #endif
94 123
95 /* using a template here would require quite a bit more lines, 124 /* using a template here would require quite a bit more lines,
96 * so a macro solution was chosen */ 125 * so a macro solution was chosen */
97 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 126 #define EV_BEGIN_WATCHER(cppstem,cstem) \
98 \ 127 \
99 struct cppstem : ev_ ## cstem, callback<cppstem> \ 128 struct cppstem : base<ev_ ## cstem, cppstem> \
100 { \ 129 { \
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 () \ 130 void start () \
117 { \ 131 { \
118 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 132 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
119 } \ 133 } \
120 \ 134 \
121 void stop () \ 135 void stop () \
122 { \ 136 { \
123 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 137 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
124 } \ 138 } \
125 \ 139 \
126 void operator ()(int events = EV_UNDEF) \
127 { \ 140 cppstem EV_CONSTRUCT \
128 return call (this, events); \
129 } \
130 \ 141 \
131 ~cppstem () \ 142 ~cppstem () \
132 { \ 143 { \
133 stop (); \ 144 stop (); \
134 } \ 145 } \
135 \ 146 \
147 using base<ev_ ## cstem, cppstem>::set; \
148 \
136 private: \ 149 private: \
137 \ 150 \
138 cppstem (const cppstem &o) \ 151 cppstem (const cppstem &o) \
139 : callback<cppstem> (this, (void (cppstem::*)(cppstem &, int))0) \
140 { /* disabled */ } \ 152 { /* disabled */ } \
141 \ 153 \
142 void operator =(const cppstem &o) { /* disabled */ } \ 154 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 \ 155 \
149 public: 156 public:
150 157
151 #define EV_END_WATCHER(cppstem,cstem) \ 158 #define EV_END_WATCHER(cppstem,cstem) \
152 }; 159 };
… …
261 if (active) start (); 268 if (active) start ();
262 } 269 }
263 270
264 void start (const char *path, ev_tstamp interval = 0.) 271 void start (const char *path, ev_tstamp interval = 0.)
265 { 272 {
273 stop ();
266 set (path, interval); 274 set (path, interval);
267 start (); 275 start ();
268 } 276 }
269 277
270 void update () 278 void update ()
… …
286 void set () { } 294 void set () { }
287 EV_END_WATCHER (check, check) 295 EV_END_WATCHER (check, check)
288 296
289 #if EV_EMBED_ENABLE 297 #if EV_EMBED_ENABLE
290 EV_BEGIN_WATCHER (embed, embed) 298 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) 299 void start (struct ev_loop *embedded_loop)
300 { 300 {
301 set (embedded_loop); 301 stop ();
302 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
302 start (); 303 start ();
303 } 304 }
304 305
305 void sweep () 306 void sweep ()
306 { 307 {
307 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this)); 308 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
308 } 309 }
309 EV_END_WATCHER (embed, embed) 310 EV_END_WATCHER (embed, embed)
311 #endif
312
313 #if EV_FORK_ENABLE
314 EV_BEGIN_WATCHER (fork, fork)
315 void set () { }
316 EV_END_WATCHER (fork, fork)
310 #endif 317 #endif
311 318
312 #undef EV_CONSTRUCT 319 #undef EV_CONSTRUCT
313 #undef EV_BEGIN_WATCHER 320 #undef EV_BEGIN_WATCHER
314 #undef EV_END_WATCHER 321 #undef EV_END_WATCHER

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