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Comparing libev/ev++.h (file contents):
Revision 1.8 by root, Tue Nov 27 08:20:41 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,
… …
50 READ = EV_READ, 106 READ = EV_READ,
51 WRITE = EV_WRITE, 107 WRITE = EV_WRITE,
52 TIMEOUT = EV_TIMEOUT, 108 TIMEOUT = EV_TIMEOUT,
53 PERIODIC = EV_PERIODIC, 109 PERIODIC = EV_PERIODIC,
54 SIGNAL = EV_SIGNAL, 110 SIGNAL = EV_SIGNAL,
111 CHILD = EV_CHILD,
112 STAT = EV_STAT,
55 IDLE = EV_IDLE, 113 IDLE = EV_IDLE,
56 CHECK = EV_CHECK, 114 CHECK = EV_CHECK,
57 PREPARE = EV_PREPARE, 115 PREPARE = EV_PREPARE,
58 CHILD = EV_CHILD, 116 FORK = EV_FORK,
117 EMBED = EV_EMBED,
59 ERROR = EV_ERROR, 118 ERROR = EV_ERROR,
60 }; 119 };
61 120
62 typedef ev_tstamp tstamp; 121 typedef ev_tstamp tstamp;
63 122
… …
65 { 124 {
66 return ev_now (EV_A); 125 return ev_now (EV_A);
67 } 126 }
68 127
69 #if EV_MULTIPLICITY 128 #if EV_MULTIPLICITY
70
71 #define EV_CONSTRUCT(cppstem) \
72 EV_P; \ 129 #define EV_CONSTRUCT \
73 \
74 void set (EV_P) \ 130 (EV_P = EV_DEFAULT) \
75 { \ 131 { \
76 this->EV_A = EV_A; \
77 } \
78 \ 132 set (EV_A); \
79 template<class O1, class O2> \ 133 }
80 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int), EV_P = ev_default_loop (0)) \
81 : callback<cppstem> (object, method), EV_A (EV_A)
82
83 #else 134 #else
84 135 #define EV_CONSTRUCT \
85 #define EV_CONSTRUCT(cppstem) \ 136 () \
86 template<class O1, class O2> \ 137 { \
87 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int)) \ 138 }
88 : callback<cppstem> (object, method)
89
90 #endif 139 #endif
91 140
92 /* using a template here would require quite a bit more lines, 141 /* using a template here would require quite a bit more lines,
93 * so a macro solution was chosen */ 142 * so a macro solution was chosen */
94 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 143 #define EV_BEGIN_WATCHER(cppstem,cstem) \
95 \ 144 \
96 struct cppstem : ev_ ## cstem, callback<cppstem> \ 145 struct cppstem : base<ev_ ## cstem, cppstem> \
97 { \ 146 { \
98 EV_CONSTRUCT (cppstem) \
99 { \
100 ev_init (static_cast<ev_ ## cstem *>(this), thunk); \
101 } \
102 \
103 bool is_active () const \
104 { \
105 return ev_is_active (static_cast<const ev_ ## cstem *>(this)); \
106 } \
107 \
108 bool is_pending () const \
109 { \
110 return ev_is_pending (static_cast<const ev_ ## cstem *>(this)); \
111 } \
112 \
113 void start () \ 147 void start () \
114 { \ 148 { \
115 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 149 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
116 } \ 150 } \
117 \ 151 \
118 void stop () \ 152 void stop () \
119 { \ 153 { \
120 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 154 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
121 } \ 155 } \
122 \ 156 \
123 void operator ()(int events = EV_UNDEF) \
124 { \ 157 cppstem EV_CONSTRUCT \
125 return call (this, events); \
126 } \
127 \ 158 \
128 ~cppstem () \ 159 ~cppstem () \
129 { \ 160 { \
130 stop (); \ 161 stop (); \
131 } \ 162 } \
132 \ 163 \
164 using base<ev_ ## cstem, cppstem>::set; \
165 \
133 private: \ 166 private: \
134 \ 167 \
135 cppstem (const cppstem &o) \ 168 cppstem (const cppstem &o) \
136 : callback<cppstem> (this, (void (cppstem::*)(cppstem &, int))0) \
137 { /* disabled */ } \ 169 { /* disabled */ } \
138 \ 170 \
139 void operator =(const cppstem &o) { /* disabled */ } \ 171 void operator =(const cppstem &o) { /* disabled */ } \
140 \
141 static void thunk (EV_P_ struct ev_ ## cstem *w, int revents) \
142 { \
143 (*static_cast<cppstem *>(w))(revents); \
144 } \
145 \ 172 \
146 public: 173 public:
147 174
148 #define EV_END_WATCHER(cppstem,cstem) \ 175 #define EV_END_WATCHER(cppstem,cstem) \
149 }; 176 };
… …
258 if (active) start (); 285 if (active) start ();
259 } 286 }
260 287
261 void start (const char *path, ev_tstamp interval = 0.) 288 void start (const char *path, ev_tstamp interval = 0.)
262 { 289 {
290 stop ();
263 set (path, interval); 291 set (path, interval);
264 start (); 292 start ();
265 } 293 }
266 294
267 void update () 295 void update ()
… …
283 void set () { } 311 void set () { }
284 EV_END_WATCHER (check, check) 312 EV_END_WATCHER (check, check)
285 313
286 #if EV_EMBED_ENABLE 314 #if EV_EMBED_ENABLE
287 EV_BEGIN_WATCHER (embed, embed) 315 EV_BEGIN_WATCHER (embed, embed)
288 void set (struct ev_loop *loop)
289 {
290 int active = is_active ();
291 if (active) stop ();
292 ev_embed_set (static_cast<ev_embed *>(this), loop);
293 if (active) start ();
294 }
295
296 void start (struct ev_loop *embedded_loop) 316 void start (struct ev_loop *embedded_loop)
297 { 317 {
298 set (embedded_loop); 318 stop ();
319 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
299 start (); 320 start ();
300 } 321 }
301 322
302 void sweep () 323 void sweep ()
303 { 324 {
304 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this)); 325 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
305 } 326 }
306 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)
307 #endif 334 #endif
308 335
309 #undef EV_CONSTRUCT 336 #undef EV_CONSTRUCT
310 #undef EV_BEGIN_WATCHER 337 #undef EV_BEGIN_WATCHER
311 #undef EV_END_WATCHER 338 #undef EV_END_WATCHER

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