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Comparing gvpe/src/iom.h (file contents):
Revision 1.20 by pcg, Mon May 10 18:57:08 2004 UTC vs.
Revision 1.22 by pcg, Thu Nov 11 17:41:55 2004 UTC

… …
41# define IOM_IDLE 0 41# define IOM_IDLE 0
42#endif 42#endif
43#ifndef IOM_SIG 43#ifndef IOM_SIG
44# define IOM_SIG 0 44# define IOM_SIG 0
45#endif 45#endif
46#ifndef IOM_ACCURACY
47# define IOM_ACCURACY 0.001 // start timers at most this much earlier (can be 0)
48#endif
46 49
47typedef double tstamp; 50typedef double tstamp;
48extern tstamp NOW; 51extern tstamp NOW;
49 52
50struct watcher; 53struct watcher;
… …
64struct sig_watcher; 67struct sig_watcher;
65#endif 68#endif
66 69
67template<class watcher> 70template<class watcher>
68struct io_manager_vec : vector<watcher *> { 71struct io_manager_vec : vector<watcher *> {
69#if IOM_CHECK
70 bool activity;
71#endif
72
73 void erase_unordered (unsigned int pos) 72 void erase_unordered (unsigned int pos)
74 { 73 {
75 watcher *w = (*this)[this->size () - 1]; 74 watcher *w = (*this)[this->size () - 1];
76 this->pop_back (); 75 this->pop_back ();
77 76
78 if (this->size ()) 77 if (this->size ())
79 if ((*this)[pos] = w) 78 if (((*this)[pos] = w)) // '=' is correct!
80 w->active = pos + 1; 79 w->active = pos + 1;
81 } 80 }
82}; 81};
83 82
83// only used as a namespace, and for initialisation purposes
84class io_manager { 84class io_manager {
85#if IOM_IO
86 io_manager_vec<io_watcher> iow;
87#endif
88#if IOM_CHECK
89 io_manager_vec<check_watcher> cw;
90#endif
91#if IOM_TIME
92 io_manager_vec<time_watcher> tw;
93#endif
94#if IOM_IDLE
95 io_manager_vec<idle_watcher> iw;
96#endif
97#if IOM_SIG
98 typedef io_manager_vec<sig_watcher> sig_vec;
99 vector<sig_vec *> sw;
100 static void sighandler (int signum);
101#endif
102
103 template<class watcher> 85 template<class watcher>
104 void reg (watcher *w, io_manager_vec<watcher> &queue); 86 static void reg (watcher &w, io_manager_vec<watcher> &queue);
105 87
106 template<class watcher> 88 template<class watcher>
107 void unreg (watcher *w, io_manager_vec<watcher> &queue); 89 static void unreg (watcher &w, io_manager_vec<watcher> &queue);
108 90
109public: 91public:
110 // register a watcher 92 // register a watcher
111#if IOM_IO 93#if IOM_IO
112 void reg (io_watcher *w); void unreg (io_watcher *w); 94 static void reg (io_watcher &w); static void unreg (io_watcher &w);
113#endif 95#endif
114#if IOM_TIME 96#if IOM_TIME
115 void reg (time_watcher *w); void unreg (time_watcher *w); 97 static void reg (time_watcher &w); static void unreg (time_watcher &w);
116#endif 98#endif
117#if IOM_CHECK 99#if IOM_CHECK
118 void reg (check_watcher *w); void unreg (check_watcher *w); 100 static void reg (check_watcher &w); static void unreg (check_watcher &w);
119#endif 101#endif
120#if IOM_IDLE 102#if IOM_IDLE
121 void reg (idle_watcher *w); void unreg (idle_watcher *w); 103 static void reg (idle_watcher &w); static void unreg (idle_watcher &w);
122#endif 104#endif
123#if IOM_SIG 105#if IOM_SIG
124 void reg (sig_watcher *w); void unreg (sig_watcher *w); 106 static void reg (sig_watcher &w); static void unreg (sig_watcher &w);
125#endif 107#endif
126 108
127 void loop (); 109 static void loop ();
128
129 io_manager ();
130 ~io_manager ();
131}; 110};
132
133extern io_manager iom; // a singleton, together with it's construction/destruction problems.
134 111
135struct watcher { 112struct watcher {
136 int active; /* 0 == inactive, else index into respective vector */ 113 int active; /* 0 == inactive, else index into respective vector */
137 114
138 watcher () : active (0) { } 115 watcher () : active (0) { }
… …
146 short events; 123 short events;
147 124
148 void set (int fd_, short events_) { fd = fd_; events = events_; } 125 void set (int fd_, short events_) { fd = fd_; events = events_; }
149 126
150 void set (short events_) { set (fd, events_); } 127 void set (short events_) { set (fd, events_); }
151 void start () { iom.reg (this); } 128 void start () { io_manager::reg (*this); }
152 void start (int fd_, short events_) { set (fd_, events_); iom.reg (this); } 129 void start (int fd_, short events_) { set (fd_, events_); io_manager::reg (*this); }
153 void stop () { iom.unreg (this); } 130 void stop () { io_manager::unreg (*this); }
154 131
155 template<class O1, class O2> 132 template<class O1, class O2>
156 io_watcher (O1 *object, void (O2::*method) (io_watcher &, short)) 133 io_watcher (O1 *object, void (O2::*method) (io_watcher &, short))
157 : callback2<void, io_watcher &, short> (object,method) 134 : callback2<void, io_watcher &, short> (object,method)
158 { } 135 { }
… …
166 143
167 void trigger (); 144 void trigger ();
168 145
169 void set (tstamp when) { at = when; } 146 void set (tstamp when) { at = when; }
170 void operator () () { trigger (); } 147 void operator () () { trigger (); }
171 void start () { iom.reg (this); } 148 void start () { io_manager::reg (*this); }
172 void start (tstamp when) { set (when); iom.reg (this); } 149 void start (tstamp when) { set (when); io_manager::reg (*this); }
173 void stop () { iom.unreg (this); } 150 void stop () { io_manager::unreg (*this); }
174 151
175 template<class O1, class O2> 152 template<class O1, class O2>
176 time_watcher (O1 *object, void (O2::*method) (time_watcher &)) 153 time_watcher (O1 *object, void (O2::*method) (time_watcher &))
177 : callback1<void, time_watcher &> (object,method), at (0) 154 : callback1<void, time_watcher &> (object,method), at (0)
178 { } 155 { }
… …
181#endif 158#endif
182 159
183#if IOM_CHECK 160#if IOM_CHECK
184// run before checking for new events 161// run before checking for new events
185struct check_watcher : watcher, callback1<void, check_watcher &> { 162struct check_watcher : watcher, callback1<void, check_watcher &> {
186 void start () { iom.reg (this); } 163 void start () { io_manager::reg (*this); }
187 void stop () { iom.unreg (this); } 164 void stop () { io_manager::unreg (*this); }
188 165
189 template<class O1, class O2> 166 template<class O1, class O2>
190 check_watcher (O1 *object, void (O2::*method) (check_watcher &)) 167 check_watcher (O1 *object, void (O2::*method) (check_watcher &))
191 : callback1<void, check_watcher &> (object,method) 168 : callback1<void, check_watcher &> (object,method)
192 { } 169 { }
… …
195#endif 172#endif
196 173
197#if IOM_IDLE 174#if IOM_IDLE
198// run after checking for any i/o, but before waiting 175// run after checking for any i/o, but before waiting
199struct idle_watcher : watcher, callback1<void, idle_watcher &> { 176struct idle_watcher : watcher, callback1<void, idle_watcher &> {
200 void start () { iom.reg (this); } 177 void start () { io_manager::reg (*this); }
201 void stop () { iom.unreg (this); } 178 void stop () { io_manager::unreg (*this); }
202 179
203 template<class O1, class O2> 180 template<class O1, class O2>
204 idle_watcher (O1 *object, void (O2::*method) (idle_watcher &)) 181 idle_watcher (O1 *object, void (O2::*method) (idle_watcher &))
205 : callback1<void, idle_watcher &> (object,method) 182 : callback1<void, idle_watcher &> (object,method)
206 { } 183 { }
… …
211#if IOM_SIG 188#if IOM_SIG
212struct sig_watcher : watcher, callback1<void, sig_watcher &> { 189struct sig_watcher : watcher, callback1<void, sig_watcher &> {
213 int signum; 190 int signum;
214 191
215 void start (int signum); 192 void start (int signum);
216 void stop () { iom.unreg (this); } 193 void stop () { io_manager::unreg (*this); }
217 194
218 template<class O1, class O2> 195 template<class O1, class O2>
219 sig_watcher (O1 *object, void (O2::*method) (sig_watcher &)) 196 sig_watcher (O1 *object, void (O2::*method) (sig_watcher &))
220 : callback1<void, sig_watcher &> (object,method), signum (-1) 197 : callback1<void, sig_watcher &> (object,method), signum (-1)
221 { } 198 { }

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