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39 | extern tstamp NOW; |
39 | extern tstamp NOW; |
40 | |
40 | |
41 | // TSTAMP_MAX must still fit into a positive struct timeval |
41 | // TSTAMP_MAX must still fit into a positive struct timeval |
42 | #define TSTAMP_MAX (double)(1UL<<31) |
42 | #define TSTAMP_MAX (double)(1UL<<31) |
43 | |
43 | |
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44 | //#define IOM_LIBEVENT "event.h" *NOT* a supported feature |
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45 | #ifdef IOM_LIBEVENT |
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46 | # include <sys/time.h> |
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47 | # include IOM_LIBEVENT |
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48 | # undef IOM_IO |
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49 | # define IOM_IO 1 |
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50 | # undef IOM_TIME |
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51 | # define IOM_TIME 1 |
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52 | # undef IOM_IDLE // NYI |
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53 | # undef IOM_SIG // NYI |
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54 | # undef IOM_CHILD // NYI |
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55 | #endif |
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56 | |
44 | struct watcher; |
57 | struct watcher; |
45 | #if IOM_IO |
58 | #if IOM_IO |
46 | struct io_watcher; |
59 | struct io_watcher; |
47 | #endif |
60 | #endif |
48 | #if IOM_TIME |
61 | #if IOM_TIME |
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90 | // set NOW |
103 | // set NOW |
91 | static void set_now (); |
104 | static void set_now (); |
92 | #endif |
105 | #endif |
93 | |
106 | |
94 | // register a watcher |
107 | // register a watcher |
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108 | #ifndef IOM_LIBEVENT |
95 | #if IOM_IO |
109 | #if IOM_IO |
96 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
110 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
97 | #endif |
111 | #endif |
98 | #if IOM_TIME |
112 | #if IOM_TIME |
99 | static void reg (time_watcher &w); static void unreg (time_watcher &w); |
113 | static void reg (time_watcher &w); static void unreg (time_watcher &w); |
100 | #endif |
114 | #endif |
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115 | #if IOM_SIG |
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116 | static void reg (sig_watcher &w); static void unreg (sig_watcher &w); |
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117 | #endif |
101 | #if IOM_CHECK |
118 | #if IOM_CHECK |
102 | static void reg (check_watcher &w); static void unreg (check_watcher &w); |
119 | static void reg (check_watcher &w); static void unreg (check_watcher &w); |
103 | #endif |
120 | #endif |
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121 | #endif |
104 | #if IOM_IDLE |
122 | #if IOM_IDLE |
105 | static void reg (idle_watcher &w); static void unreg (idle_watcher &w); |
123 | static void reg (idle_watcher &w); static void unreg (idle_watcher &w); |
106 | #endif |
124 | #endif |
107 | #if IOM_SIG |
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108 | static void reg (sig_watcher &w); static void unreg (sig_watcher &w); |
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109 | #endif |
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110 | #if IOM_CHILD |
125 | #if IOM_CHILD |
111 | static void reg (child_watcher &w); static void unreg (child_watcher &w); |
126 | static void reg (child_watcher &w); static void unreg (child_watcher &w); |
112 | #endif |
127 | #endif |
113 | |
128 | |
114 | static void loop (); |
129 | static void loop (); |
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121 | |
136 | |
122 | watcher () : active (0) { } |
137 | watcher () : active (0) { } |
123 | }; |
138 | }; |
124 | |
139 | |
125 | #if IOM_IO |
140 | #if IOM_IO |
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141 | #ifdef IOM_LIBEVENT |
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142 | enum { EVENT_UNDEF = -1, EVENT_NONE = 0, EVENT_READ = EV_READ, EVENT_WRITE = EV_WRITE }; |
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143 | |
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144 | void iom_io_c_callback (int fd, short events, void *data); |
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145 | |
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146 | struct io_watcher : watcher, callback<void (io_watcher &, short)> { |
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147 | struct event ev; |
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148 | int fd; |
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149 | short events; |
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150 | |
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151 | void set (int fd_, short events_); |
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152 | void set (short events_) { set (fd, events_); } |
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153 | void start () { if (!active) event_add (&ev, 0); active = 1; } |
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154 | void start (int fd_, short events_) { set (fd_, events_); start (); } |
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155 | void stop () { if (active) event_del (&ev); active = 0; } |
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156 | |
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157 | template<class O, class M> |
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158 | io_watcher (O object, M method) |
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159 | : callback<void (io_watcher &, short)> (object, method) |
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160 | { } |
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161 | ~io_watcher () { stop (); } |
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162 | }; |
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163 | #else |
126 | enum { EVENT_UNDEF = -1, EVENT_NONE = 0, EVENT_READ = 1, EVENT_WRITE = 2 }; |
164 | enum { EVENT_UNDEF = -1, EVENT_NONE = 0, EVENT_READ = 1, EVENT_WRITE = 2 }; |
127 | |
165 | |
128 | struct io_watcher : watcher, callback<void (io_watcher &, short)> { |
166 | struct io_watcher : watcher, callback<void (io_watcher &, short)> { |
129 | int fd; |
167 | int fd; |
130 | short events; |
168 | short events; |
131 | |
169 | |
132 | void set (int fd_, short events_) { fd = fd_; events = events_; } |
170 | void set (int fd_, short events_) { fd = fd_; events = events_; } |
133 | |
171 | |
134 | void set (short events_) { set (fd, events_); } |
172 | void set (short events_) { set (fd, events_); } |
135 | void start () { io_manager::reg (*this); } |
173 | void start () { io_manager::reg (*this); } |
136 | void start (int fd_, short events_) { set (fd_, events_); io_manager::reg (*this); } |
174 | void start (int fd_, short events_) { set (fd_, events_); start (); } |
137 | void stop () { io_manager::unreg (*this); } |
175 | void stop () { io_manager::unreg (*this); } |
138 | |
176 | |
139 | template<class O, class M> |
177 | template<class O, class M> |
140 | io_watcher (O object, M method) |
178 | io_watcher (O object, M method) |
141 | : callback<void (io_watcher &, short)> (object, method) |
179 | : callback<void (io_watcher &, short)> (object, method) |
142 | { } |
180 | { } |
143 | ~io_watcher () { stop (); } |
181 | ~io_watcher () { stop (); } |
144 | }; |
182 | }; |
145 | #endif |
183 | #endif |
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184 | #endif |
146 | |
185 | |
147 | #if IOM_TIME |
186 | #if IOM_TIME |
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187 | #ifdef IOM_LIBEVENT |
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188 | void iom_time_c_callback (int fd, short events, void *data); |
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189 | |
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190 | struct time_watcher : watcher, callback<void (time_watcher &)> { |
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191 | struct event ev; |
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192 | tstamp at; |
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193 | |
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194 | void trigger (); |
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195 | |
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196 | void set (tstamp when) |
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197 | { |
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198 | at = when; |
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199 | if (active) |
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200 | start (); |
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201 | } |
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202 | void operator () () { trigger (); } |
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203 | void start (); |
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204 | void start (tstamp when) { at = when; start (); } |
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205 | void stop () { if (active) evtimer_del (&ev); active = 0; } |
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206 | |
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207 | template<class O, class M> |
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208 | time_watcher (O object, M method) |
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209 | : callback<void (time_watcher &)> (object, method), at (0) |
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210 | { } |
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211 | ~time_watcher () { stop (); } |
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212 | }; |
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213 | #else |
148 | struct time_watcher : watcher, callback<void (time_watcher &)> { |
214 | struct time_watcher : watcher, callback<void (time_watcher &)> { |
149 | tstamp at; |
215 | tstamp at; |
150 | |
216 | |
151 | void trigger (); |
217 | void trigger (); |
152 | |
218 | |
153 | void set (tstamp when) { at = when; } |
219 | void set (tstamp when) { at = when; } |
154 | void operator () () { trigger (); } |
220 | void operator () () { trigger (); } |
155 | void start () { io_manager::reg (*this); } |
221 | void start () { io_manager::reg (*this); } |
156 | void start (tstamp when) { set (when); io_manager::reg (*this); } |
222 | void start (tstamp when) { set (when); start (); } |
157 | void stop () { io_manager::unreg (*this); } |
223 | void stop () { io_manager::unreg (*this); } |
158 | |
224 | |
159 | template<class O, class M> |
225 | template<class O, class M> |
160 | time_watcher (O object, M method) |
226 | time_watcher (O object, M method) |
161 | : callback<void (time_watcher &)> (object, method), at (0) |
227 | : callback<void (time_watcher &)> (object, method), at (0) |
162 | { } |
228 | { } |
163 | ~time_watcher () { stop (); } |
229 | ~time_watcher () { stop (); } |
164 | }; |
230 | }; |
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231 | #endif |
165 | #endif |
232 | #endif |
166 | |
233 | |
167 | #if IOM_CHECK |
234 | #if IOM_CHECK |
168 | // run before checking for new events |
235 | // run before checking for new events |
169 | struct check_watcher : watcher, callback<void (check_watcher &)> { |
236 | struct check_watcher : watcher, callback<void (check_watcher &)> { |