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Comparing gvpe/src/iom.h (file contents):
Revision 1.17 by pcg, Thu Jan 29 23:17:39 2004 UTC vs.
Revision 1.21 by pcg, Thu Sep 2 07:50:43 2004 UTC

… …
38# define IOM_CHECK 0 38# define IOM_CHECK 0
39#endif 39#endif
40#ifndef IOM_IDLE 40#ifndef IOM_IDLE
41# define IOM_IDLE 0 41# define IOM_IDLE 0
42#endif 42#endif
43#ifndef IOM_SIG
44# define IOM_SIG 0
45#endif
43 46
44typedef double tstamp; 47typedef double tstamp;
45extern tstamp NOW; 48extern tstamp NOW;
46 49
47struct watcher; 50struct watcher;
… …
55struct check_watcher; 58struct check_watcher;
56#endif 59#endif
57#if IOM_IDLE 60#if IOM_IDLE
58struct idle_watcher; 61struct idle_watcher;
59#endif 62#endif
63#if IOM_SIG
64struct sig_watcher;
65#endif
60 66
61template<class watcher> 67template<class watcher>
62struct io_manager_vec : protected vector<watcher *> { 68struct io_manager_vec : vector<watcher *> {
63 friend class io_manager;
64protected:
65#if IOM_CHECK 69#if IOM_CHECK
66 bool activity; 70 bool activity;
67#endif 71#endif
68 72
69 void erase_unordered (unsigned int pos) 73 void erase_unordered (unsigned int pos)
70 { 74 {
71 watcher *w = (*this)[size () - 1]; 75 watcher *w = (*this)[this->size () - 1];
72 pop_back (); 76 this->pop_back ();
73 77
74 if (size ()) 78 if (this->size ())
75 if ((*this)[pos] = w) 79 if ((*this)[pos] = w)
76 w->active = pos + 1; 80 w->active = pos + 1;
77 } 81 }
78}; 82};
79 83
84// only used as a namespace, and for initialisation purposes
80class io_manager { 85class io_manager {
81#if IOM_IO
82 io_manager_vec<io_watcher> iow;
83#endif
84#if IOM_CHECK
85 io_manager_vec<check_watcher> cw;
86#endif
87#if IOM_TIME
88 io_manager_vec<time_watcher> tw;
89#endif
90#if IOM_IDLE
91 io_manager_vec<idle_watcher> iw;
92#endif
93
94 template<class watcher> 86 template<class watcher>
95 void reg (watcher *w, io_manager_vec<watcher> &queue); 87 static void reg (watcher &w, io_manager_vec<watcher> &queue);
96 88
97 template<class watcher> 89 template<class watcher>
98 void unreg (watcher *w, io_manager_vec<watcher> &queue); 90 static void unreg (watcher &w, io_manager_vec<watcher> &queue);
99 91
100public: 92public:
101 // register a watcher 93 // register a watcher
102#if IOM_IO 94#if IOM_IO
103 void reg (io_watcher *w); void unreg (io_watcher *w); 95 static void reg (io_watcher &w); static void unreg (io_watcher &w);
104#endif 96#endif
105#if IOM_TIME 97#if IOM_TIME
106 void reg (time_watcher *w); void unreg (time_watcher *w); 98 static void reg (time_watcher &w); static void unreg (time_watcher &w);
107#endif 99#endif
108#if IOM_CHECK 100#if IOM_CHECK
109 void reg (check_watcher *w); void unreg (check_watcher *w); 101 static void reg (check_watcher &w); static void unreg (check_watcher &w);
110#endif 102#endif
111#if IOM_IDLE 103#if IOM_IDLE
112 void reg (idle_watcher *w); void unreg (idle_watcher *w); 104 static void reg (idle_watcher &w); static void unreg (idle_watcher &w);
105#endif
106#if IOM_SIG
107 static void reg (sig_watcher &w); static void unreg (sig_watcher &w);
113#endif 108#endif
114 109
115 void loop (); 110 static void loop ();
116
117 io_manager ();
118 ~io_manager ();
119}; 111};
120
121extern io_manager iom; // a singleton, together with it's construction/destruction problems.
122 112
123struct watcher { 113struct watcher {
124 int active; /* 0 == inactive, else index into respective vector */ 114 int active; /* 0 == inactive, else index into respective vector */
125 115
126 watcher() : active(0) { } 116 watcher () : active (0) { }
127}; 117};
128 118
129#if IOM_IO 119#if IOM_IO
130enum { EVENT_READ = 1, EVENT_WRITE = 2 }; 120enum { EVENT_READ = 1, EVENT_WRITE = 2 };
131 121
… …
134 short events; 124 short events;
135 125
136 void set (int fd_, short events_) { fd = fd_; events = events_; } 126 void set (int fd_, short events_) { fd = fd_; events = events_; }
137 127
138 void set (short events_) { set (fd, events_); } 128 void set (short events_) { set (fd, events_); }
139 void start () { iom.reg (this); } 129 void start () { io_manager::reg (*this); }
140 void start (int fd_, short events_) { set (fd_, events_); iom.reg (this); } 130 void start (int fd_, short events_) { set (fd_, events_); io_manager::reg (*this); }
141 void stop () { iom.unreg (this); } 131 void stop () { io_manager::unreg (*this); }
142 132
143 template<class O1, class O2> 133 template<class O1, class O2>
144 io_watcher (O1 *object, void (O2::*method)(io_watcher &, short)) 134 io_watcher (O1 *object, void (O2::*method) (io_watcher &, short))
145 : callback2<void, io_watcher &, short>(object,method) 135 : callback2<void, io_watcher &, short> (object,method)
146 { } 136 { }
147 ~io_watcher () { stop (); } 137 ~io_watcher () { stop (); }
148}; 138};
149#endif 139#endif
150 140
… …
153 tstamp at; 143 tstamp at;
154 144
155 void trigger (); 145 void trigger ();
156 146
157 void set (tstamp when) { at = when; } 147 void set (tstamp when) { at = when; }
158 void operator ()() { trigger (); } 148 void operator () () { trigger (); }
159 void start () { iom.reg (this); } 149 void start () { io_manager::reg (*this); }
160 void start (tstamp when) { set (when); iom.reg (this); } 150 void start (tstamp when) { set (when); io_manager::reg (*this); }
161 void stop () { iom.unreg (this); } 151 void stop () { io_manager::unreg (*this); }
162 152
163 template<class O1, class O2> 153 template<class O1, class O2>
164 time_watcher (O1 *object, void (O2::*method)(time_watcher &)) 154 time_watcher (O1 *object, void (O2::*method) (time_watcher &))
165 : callback1<void, time_watcher &>(object,method), at(0) 155 : callback1<void, time_watcher &> (object,method), at (0)
166 { } 156 { }
167 ~time_watcher () { stop (); } 157 ~time_watcher () { stop (); }
168}; 158};
169#endif 159#endif
170 160
171#if IOM_CHECK 161#if IOM_CHECK
172// run before checking for new events 162// run before checking for new events
173struct check_watcher : watcher, callback1<void, check_watcher &> { 163struct check_watcher : watcher, callback1<void, check_watcher &> {
174 void start () { iom.reg (this); } 164 void start () { io_manager::reg (*this); }
175 void stop () { iom.unreg (this); } 165 void stop () { io_manager::unreg (*this); }
176 166
177 template<class O1, class O2> 167 template<class O1, class O2>
178 check_watcher (O1 *object, void (O2::*method)(check_watcher &)) 168 check_watcher (O1 *object, void (O2::*method) (check_watcher &))
179 : callback1<void, check_watcher &>(object,method) 169 : callback1<void, check_watcher &> (object,method)
180 { } 170 { }
181 ~check_watcher () { stop (); } 171 ~check_watcher () { stop (); }
182}; 172};
183#endif 173#endif
184 174
185#if IOM_IDLE 175#if IOM_IDLE
186// run after checking for any i/o, but before waiting 176// run after checking for any i/o, but before waiting
187struct idle_watcher : watcher, callback1<void, idle_watcher &> { 177struct idle_watcher : watcher, callback1<void, idle_watcher &> {
188 void start () { iom.reg (this); } 178 void start () { io_manager::reg (*this); }
189 void stop () { iom.unreg (this); } 179 void stop () { io_manager::unreg (*this); }
190 180
191 template<class O1, class O2> 181 template<class O1, class O2>
192 idle_watcher (O1 *object, void (O2::*method)(idle_watcher &)) 182 idle_watcher (O1 *object, void (O2::*method) (idle_watcher &))
193 : callback1<void, idle_watcher &>(object,method) 183 : callback1<void, idle_watcher &> (object,method)
194 { } 184 { }
195 ~idle_watcher () { stop (); } 185 ~idle_watcher () { stop (); }
196}; 186};
197#endif 187#endif
198 188
199#endif 189#if IOM_SIG
190struct sig_watcher : watcher, callback1<void, sig_watcher &> {
191 int signum;
200 192
193 void start (int signum);
194 void stop () { io_manager::unreg (*this); }
195
196 template<class O1, class O2>
197 sig_watcher (O1 *object, void (O2::*method) (sig_watcher &))
198 : callback1<void, sig_watcher &> (object,method), signum (-1)
199 { }
200 ~sig_watcher () { stop (); }
201};
202#endif
203
204#endif
205

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