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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 1.13 by root, Tue Dec 4 16:23:29 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 *object, void (*cb)(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 = object;
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_watcher *w, int revents)
39 {
40 watcher *self = static_cast<watcher *>(w);
41 K *obj = static_cast<K *>(self->data);
42 (obj->*method) (*self, revents);
43 }
44
45 template<class K, void (K::*method)(watcher &w, int) const>
46 void set (const K *object)
47 {
48 set_ (object, const_method_thunk<K, method>);
49 }
50
51 template<class K, void (K::*method)(watcher &w, int) const>
52 static void const_method_thunk (ev_watcher *w, int revents)
53 {
54 watcher *self = static_cast<watcher *>(w);
55 K *obj = static_cast<K *>(self->data);
56 (obj->*method) (*self, revents);
57 }
58
59 template<void (*function)(watcher &w, int)>
60 void set ()
61 {
62 set_ (0, function_thunk<function>);
63 }
64
65 template<void (*function)(watcher &w, int)>
66 static void function_thunk (ev_watcher *w, int revents)
67 {
68 watcher *self = static_cast<watcher *>(w);
69 function (*self, revents);
70 }
71
72 void operator ()(int events = EV_UNDEF)
73 {
74 return e_cb (static_cast<ev_watcher *>(this)) (events);
75 }
76
77 bool is_active () const
78 {
79 return ev_is_active (static_cast<const ev_watcher *>(this));
80 }
81
82 bool is_pending () const
83 {
84 return ev_is_pending (static_cast<const ev_watcher *>(this));
44 } 85 }
45 }; 86 };
46 87
47 enum { 88 enum {
48 UNDEF = EV_UNDEF, 89 UNDEF = EV_UNDEF,
… …
50 READ = EV_READ, 91 READ = EV_READ,
51 WRITE = EV_WRITE, 92 WRITE = EV_WRITE,
52 TIMEOUT = EV_TIMEOUT, 93 TIMEOUT = EV_TIMEOUT,
53 PERIODIC = EV_PERIODIC, 94 PERIODIC = EV_PERIODIC,
54 SIGNAL = EV_SIGNAL, 95 SIGNAL = EV_SIGNAL,
96 CHILD = EV_CHILD,
97 STAT = EV_STAT,
55 IDLE = EV_IDLE, 98 IDLE = EV_IDLE,
56 CHECK = EV_CHECK, 99 CHECK = EV_CHECK,
57 PREPARE = EV_PREPARE, 100 PREPARE = EV_PREPARE,
58 CHILD = EV_CHILD, 101 FORK = EV_FORK,
102 EMBED = EV_EMBED,
59 ERROR = EV_ERROR, 103 ERROR = EV_ERROR,
60 }; 104 };
61 105
62 typedef ev_tstamp tstamp; 106 typedef ev_tstamp tstamp;
63 107
… …
65 { 109 {
66 return ev_now (EV_A); 110 return ev_now (EV_A);
67 } 111 }
68 112
69 #if EV_MULTIPLICITY 113 #if EV_MULTIPLICITY
70
71 #define EV_CONSTRUCT(cppstem) \
72 EV_P; \ 114 #define EV_CONSTRUCT \
73 \
74 void set (EV_P) \ 115 (EV_P = EV_DEFAULT) \
75 { \ 116 { \
76 this->EV_A = EV_A; \
77 } \
78 \ 117 set (EV_A); \
79 template<class O1, class O2> \ 118 }
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 119 #else
84 120 #define EV_CONSTRUCT \
85 #define EV_CONSTRUCT(cppstem) \ 121 () \
86 template<class O1, class O2> \ 122 { \
87 explicit cppstem (O1 *object, void (O2::*method)(cppstem &, int)) \ 123 }
88 : callback<cppstem> (object, method)
89
90 #endif 124 #endif
91 125
92 /* using a template here would require quite a bit more lines, 126 /* using a template here would require quite a bit more lines,
93 * so a macro solution was chosen */ 127 * so a macro solution was chosen */
94 #define EV_BEGIN_WATCHER(cppstem,cstem) \ 128 #define EV_BEGIN_WATCHER(cppstem,cstem) \
95 \ 129 \
96 struct cppstem : ev_ ## cstem, callback<cppstem> \ 130 struct cppstem : base<ev_ ## cstem, cppstem> \
97 { \ 131 { \
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 () \ 132 void start () \
114 { \ 133 { \
115 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 134 ev_ ## cstem ## _start (EV_A_ static_cast<ev_ ## cstem *>(this)); \
116 } \ 135 } \
117 \ 136 \
118 void stop () \ 137 void stop () \
119 { \ 138 { \
120 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \ 139 ev_ ## cstem ## _stop (EV_A_ static_cast<ev_ ## cstem *>(this)); \
121 } \ 140 } \
122 \ 141 \
123 void operator ()(int events = EV_UNDEF) \
124 { \ 142 cppstem EV_CONSTRUCT \
125 return call (this, events); \
126 } \
127 \ 143 \
128 ~cppstem () \ 144 ~cppstem () \
129 { \ 145 { \
130 stop (); \ 146 stop (); \
131 } \ 147 } \
132 \ 148 \
149 using base<ev_ ## cstem, cppstem>::set; \
150 \
133 private: \ 151 private: \
134 \ 152 \
135 cppstem (const cppstem &o) \ 153 cppstem (const cppstem &o) \
136 : callback<cppstem> (this, (void (cppstem::*)(cppstem &, int))0) \
137 { /* disabled */ } \ 154 { /* disabled */ } \
138 \ 155 \
139 void operator =(const cppstem &o) { /* disabled */ } \ 156 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 \ 157 \
146 public: 158 public:
147 159
148 #define EV_END_WATCHER(cppstem,cstem) \ 160 #define EV_END_WATCHER(cppstem,cstem) \
149 }; 161 };
… …
258 if (active) start (); 270 if (active) start ();
259 } 271 }
260 272
261 void start (const char *path, ev_tstamp interval = 0.) 273 void start (const char *path, ev_tstamp interval = 0.)
262 { 274 {
275 stop ();
263 set (path, interval); 276 set (path, interval);
264 start (); 277 start ();
265 } 278 }
266 279
267 void update () 280 void update ()
… …
283 void set () { } 296 void set () { }
284 EV_END_WATCHER (check, check) 297 EV_END_WATCHER (check, check)
285 298
286 #if EV_EMBED_ENABLE 299 #if EV_EMBED_ENABLE
287 EV_BEGIN_WATCHER (embed, embed) 300 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) 301 void start (struct ev_loop *embedded_loop)
297 { 302 {
298 set (embedded_loop); 303 stop ();
304 ev_embed_set (static_cast<ev_embed *>(this), embedded_loop);
299 start (); 305 start ();
300 } 306 }
301 307
302 void sweep () 308 void sweep ()
303 { 309 {
304 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this)); 310 ev_embed_sweep (EV_A_ static_cast<ev_embed *>(this));
305 } 311 }
306 EV_END_WATCHER (embed, embed) 312 EV_END_WATCHER (embed, embed)
313 #endif
314
315 #if EV_FORK_ENABLE
316 EV_BEGIN_WATCHER (fork, fork)
317 void set () { }
318 EV_END_WATCHER (fork, fork)
307 #endif 319 #endif
308 320
309 #undef EV_CONSTRUCT 321 #undef EV_CONSTRUCT
310 #undef EV_BEGIN_WATCHER 322 #undef EV_BEGIN_WATCHER
311 #undef EV_END_WATCHER 323 #undef EV_END_WATCHER

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