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