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21 | #include <cstdlib> |
21 | #include <cstdlib> |
22 | #include <cerrno> |
22 | #include <cerrno> |
23 | |
23 | |
24 | #include <sys/time.h> |
24 | #include <sys/time.h> |
25 | |
25 | |
26 | #if 1 // older unices need these includes for select(2) |
26 | #if 1 // older unices need these includes for select (2) |
27 | # include <unistd.h> |
27 | # include <unistd.h> |
28 | # include <sys/types.h> |
28 | # include <sys/types.h> |
29 | #endif |
29 | #endif |
30 | |
30 | |
31 | // if the BSDs would at least be marginally POSIX-compatible.. *sigh* |
31 | // if the BSDs would at least be marginally POSIX-compatible.. *sigh* |
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39 | |
39 | |
40 | // this is a dummy time watcher to ensure that the first |
40 | // this is a dummy time watcher to ensure that the first |
41 | // time watcher is _always_ valid, this gets rid of a lot |
41 | // time watcher is _always_ valid, this gets rid of a lot |
42 | // of null-pointer-checks |
42 | // of null-pointer-checks |
43 | // (must come _before_ iom is being defined) |
43 | // (must come _before_ iom is being defined) |
44 | static struct tw0 : time_watcher { |
44 | static struct tw0 : time_watcher |
45 | void cb (time_watcher &w) |
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46 | { |
45 | { |
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46 | void cb (time_watcher &w) |
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47 | { |
47 | // should never get called |
48 | // should never get called |
48 | // reached end-of-time, or tstamp has a bogus definition, |
49 | // reached end-of-time, or tstamp has a bogus definition, |
49 | // or compiler initilization order broken, or somethine else :) |
50 | // or compiler initilization order broken, or somethine else :) |
50 | abort (); |
51 | abort (); |
51 | } |
52 | } |
52 | |
53 | |
53 | tw0() |
54 | tw0 () |
54 | : time_watcher (this, &tw0::cb) |
55 | : time_watcher (this, &tw0::cb) |
55 | { } |
56 | { }} |
56 | } tw0; |
57 | tw0; |
57 | |
58 | |
58 | tstamp NOW; |
59 | tstamp NOW; |
59 | static bool iom_valid; |
60 | static bool iom_valid; |
60 | io_manager iom; |
61 | io_manager iom; |
61 | |
62 | |
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99 | void io_manager::reg (time_watcher *w) { reg (w, tw); } |
100 | void io_manager::reg (time_watcher *w) { reg (w, tw); } |
100 | void io_manager::unreg (time_watcher *w) { unreg (w, tw); } |
101 | void io_manager::unreg (time_watcher *w) { unreg (w, tw); } |
101 | #endif |
102 | #endif |
102 | |
103 | |
103 | #if IOM_IO |
104 | #if IOM_IO |
104 | void io_manager::reg (io_watcher *w) { reg (w, iow); } |
105 | void io_manager::reg (io_watcher *w) { reg (w, iow); } |
105 | void io_manager::unreg (io_watcher *w) { unreg (w, iow); } |
106 | void io_manager::unreg (io_watcher *w) { unreg (w, iow); } |
106 | #endif |
107 | #endif |
107 | |
108 | |
108 | #if IOM_CHECK |
109 | #if IOM_CHECK |
109 | void io_manager::reg (check_watcher *w) { reg (w, cw); } |
110 | void io_manager::reg (check_watcher *w) { reg (w, cw); } |
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144 | tval.tv_usec = 0; |
145 | tval.tv_usec = 0; |
145 | to = &tval; |
146 | to = &tval; |
146 | } |
147 | } |
147 | else |
148 | else |
148 | #endif |
149 | #endif |
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150 | |
149 | { |
151 | { |
150 | #if IOM_TIME |
152 | #if IOM_TIME |
151 | time_watcher *next; |
153 | time_watcher *next; |
152 | |
154 | |
153 | for (;;) |
155 | for (;;) |
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164 | { |
166 | { |
165 | if (next != tw[0]) |
167 | if (next != tw[0]) |
166 | { |
168 | { |
167 | double diff = next->at - NOW; |
169 | double diff = next->at - NOW; |
168 | tval.tv_sec = (int)diff; |
170 | tval.tv_sec = (int)diff; |
169 | tval.tv_usec = (int)((diff - tval.tv_sec) * 1000000); |
171 | tval.tv_usec = (int) ((diff - tval.tv_sec) * 1000000); |
170 | to = &tval; |
172 | to = &tval; |
171 | } |
173 | } |
172 | break; |
174 | break; |
173 | } |
175 | } |
174 | else |
176 | else |
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176 | unreg (next); |
178 | unreg (next); |
177 | next->call (*next); |
179 | next->call (*next); |
178 | } |
180 | } |
179 | } |
181 | } |
180 | #endif |
182 | #endif |
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183 | |
181 | } |
184 | } |
182 | |
185 | |
183 | #if IOM_CHECK |
186 | #if IOM_CHECK |
184 | tw.activity = false; |
187 | tw.activity = false; |
185 | |
188 | |
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196 | to = &tval; |
199 | to = &tval; |
197 | } |
200 | } |
198 | #endif |
201 | #endif |
199 | |
202 | |
200 | #if IOM_IO |
203 | #if IOM_IO |
201 | fd_set rfd, wfd, efd; |
204 | fd_set rfd, wfd; |
202 | |
205 | |
203 | FD_ZERO (&rfd); |
206 | FD_ZERO (&rfd); |
204 | FD_ZERO (&wfd); |
207 | FD_ZERO (&wfd); |
205 | |
208 | |
206 | int fds = 0; |
209 | int fds = 0; |
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257 | select (0, 0, 0, 0, &to); |
260 | select (0, 0, 0, 0, &to); |
258 | set_now (); |
261 | set_now (); |
259 | #else |
262 | #else |
260 | break; |
263 | break; |
261 | #endif |
264 | #endif |
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265 | |
262 | } |
266 | } |
263 | } |
267 | } |
264 | |
268 | |
265 | io_manager::io_manager () |
269 | io_manager::io_manager () |
266 | { |
270 | { |