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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 | #endif |
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51 | |
44 | struct watcher; |
52 | struct watcher; |
45 | #if IOM_IO |
53 | #if IOM_IO |
46 | struct io_watcher; |
54 | struct io_watcher; |
47 | #endif |
55 | #endif |
48 | #if IOM_TIME |
56 | #if IOM_TIME |
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90 | // set NOW |
98 | // set NOW |
91 | static void set_now (); |
99 | static void set_now (); |
92 | #endif |
100 | #endif |
93 | |
101 | |
94 | // register a watcher |
102 | // register a watcher |
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103 | #ifndef IOM_LIBEVENT |
95 | #if IOM_IO |
104 | #if IOM_IO |
96 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
105 | static void reg (io_watcher &w); static void unreg (io_watcher &w); |
97 | #endif |
106 | #endif |
98 | #if IOM_TIME |
107 | #if IOM_TIME |
99 | static void reg (time_watcher &w); static void unreg (time_watcher &w); |
108 | static void reg (time_watcher &w); static void unreg (time_watcher &w); |
100 | #endif |
109 | #endif |
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110 | #if IOM_SIG |
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111 | static void reg (sig_watcher &w); static void unreg (sig_watcher &w); |
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112 | #endif |
101 | #if IOM_CHECK |
113 | #if IOM_CHECK |
102 | static void reg (check_watcher &w); static void unreg (check_watcher &w); |
114 | static void reg (check_watcher &w); static void unreg (check_watcher &w); |
103 | #endif |
115 | #endif |
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116 | #endif |
104 | #if IOM_IDLE |
117 | #if IOM_IDLE |
105 | static void reg (idle_watcher &w); static void unreg (idle_watcher &w); |
118 | static void reg (idle_watcher &w); static void unreg (idle_watcher &w); |
106 | #endif |
119 | #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 |
120 | #if IOM_CHILD |
111 | static void reg (child_watcher &w); static void unreg (child_watcher &w); |
121 | static void reg (child_watcher &w); static void unreg (child_watcher &w); |
112 | #endif |
122 | #endif |
113 | |
123 | |
114 | static void loop (); |
124 | static void loop (); |
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121 | |
131 | |
122 | watcher () : active (0) { } |
132 | watcher () : active (0) { } |
123 | }; |
133 | }; |
124 | |
134 | |
125 | #if IOM_IO |
135 | #if IOM_IO |
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136 | #ifdef IOM_LIBEVENT |
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137 | enum { EVENT_UNDEF = -1, EVENT_NONE = 0, EVENT_READ = EV_READ, EVENT_WRITE = EV_WRITE }; |
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138 | |
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139 | void iom_io_c_callback (int fd, short events, void *data); |
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140 | |
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141 | struct io_watcher : watcher, callback<void (io_watcher &, short)> { |
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142 | struct event ev; |
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143 | int fd; |
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144 | |
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145 | void set (int fd_, short events_) { fd = fd_; event_set (&ev, fd_, events_, iom_io_c_callback, (void *)this); } |
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146 | |
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147 | void set (short events_) { set (fd, events_); } |
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148 | void start () { event_add (&ev, 0); active = 1; } |
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149 | void start (int fd_, short events_) { set (fd_, events_); start (); } |
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150 | void stop () { if (active) event_del (&ev); active = 0; } |
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151 | |
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152 | template<class O, class M> |
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153 | io_watcher (O object, M method) |
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154 | : callback<void (io_watcher &, short)> (object, method) |
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155 | { } |
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156 | ~io_watcher () { stop (); } |
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157 | }; |
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158 | #else |
126 | enum { EVENT_UNDEF = -1, EVENT_NONE = 0, EVENT_READ = 1, EVENT_WRITE = 2 }; |
159 | enum { EVENT_UNDEF = -1, EVENT_NONE = 0, EVENT_READ = 1, EVENT_WRITE = 2 }; |
127 | |
160 | |
128 | struct io_watcher : watcher, callback<void (io_watcher &, short)> { |
161 | struct io_watcher : watcher, callback<void (io_watcher &, short)> { |
129 | int fd; |
162 | int fd; |
130 | short events; |
163 | short events; |
131 | |
164 | |
132 | void set (int fd_, short events_) { fd = fd_; events = events_; } |
165 | void set (int fd_, short events_) { fd = fd_; events = events_; } |
133 | |
166 | |
134 | void set (short events_) { set (fd, events_); } |
167 | void set (short events_) { set (fd, events_); } |
135 | void start () { io_manager::reg (*this); } |
168 | void start () { io_manager::reg (*this); } |
136 | void start (int fd_, short events_) { set (fd_, events_); io_manager::reg (*this); } |
169 | void start (int fd_, short events_) { set (fd_, events_); start (); } |
137 | void stop () { io_manager::unreg (*this); } |
170 | void stop () { io_manager::unreg (*this); } |
138 | |
171 | |
139 | template<class O, class M> |
172 | template<class O, class M> |
140 | io_watcher (O object, M method) |
173 | io_watcher (O object, M method) |
141 | : callback<void (io_watcher &, short)> (object, method) |
174 | : callback<void (io_watcher &, short)> (object, method) |
142 | { } |
175 | { } |
143 | ~io_watcher () { stop (); } |
176 | ~io_watcher () { stop (); } |
144 | }; |
177 | }; |
145 | #endif |
178 | #endif |
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179 | #endif |
146 | |
180 | |
147 | #if IOM_TIME |
181 | #if IOM_TIME |
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182 | #ifdef IOM_LIBEVENT |
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183 | void iom_time_c_callback (int fd, short events, void *data); |
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184 | |
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185 | struct time_watcher : watcher, callback<void (time_watcher &)> { |
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186 | struct event ev; |
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187 | tstamp at; |
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188 | |
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189 | void trigger (); |
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190 | |
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191 | void set (tstamp when) { at = when; } |
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192 | void operator () () { trigger (); } |
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193 | void start () |
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194 | { |
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195 | struct timeval tv; |
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196 | tv.tv_sec = (long)at; |
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197 | tv.tv_usec = (long)((at - (tstamp)tv.tv_sec) * 1000000.); |
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198 | evtimer_add (&ev, &tv); |
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199 | active = 1; |
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200 | } |
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201 | void start (tstamp when) { set (when); start (); } |
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202 | void stop () { if (active) evtimer_del (&ev); active = 0; } |
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203 | |
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204 | template<class O, class M> |
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205 | time_watcher (O object, M method) |
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206 | : callback<void (time_watcher &)> (object, method), at (0) |
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207 | { |
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208 | evtimer_set (&ev, iom_time_c_callback, (void *)this); |
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209 | } |
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210 | ~time_watcher () { stop (); } |
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211 | }; |
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212 | #else |
148 | struct time_watcher : watcher, callback<void (time_watcher &)> { |
213 | struct time_watcher : watcher, callback<void (time_watcher &)> { |
149 | tstamp at; |
214 | tstamp at; |
150 | |
215 | |
151 | void trigger (); |
216 | void trigger (); |
152 | |
217 | |
153 | void set (tstamp when) { at = when; } |
218 | void set (tstamp when) { at = when; } |
154 | void operator () () { trigger (); } |
219 | void operator () () { trigger (); } |
155 | void start () { io_manager::reg (*this); } |
220 | void start () { io_manager::reg (*this); } |
156 | void start (tstamp when) { set (when); io_manager::reg (*this); } |
221 | void start (tstamp when) { set (when); start (); } |
157 | void stop () { io_manager::unreg (*this); } |
222 | void stop () { io_manager::unreg (*this); } |
158 | |
223 | |
159 | template<class O, class M> |
224 | template<class O, class M> |
160 | time_watcher (O object, M method) |
225 | time_watcher (O object, M method) |
161 | : callback<void (time_watcher &)> (object, method), at (0) |
226 | : callback<void (time_watcher &)> (object, method), at (0) |
162 | { } |
227 | { } |
163 | ~time_watcher () { stop (); } |
228 | ~time_watcher () { stop (); } |
164 | }; |
229 | }; |
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230 | #endif |
165 | #endif |
231 | #endif |
166 | |
232 | |
167 | #if IOM_CHECK |
233 | #if IOM_CHECK |
168 | // run before checking for new events |
234 | // run before checking for new events |
169 | struct check_watcher : watcher, callback<void (check_watcher &)> { |
235 | struct check_watcher : watcher, callback<void (check_watcher &)> { |