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24 | #include <functional> |
24 | #include <functional> |
25 | |
25 | |
26 | #include "slog.h" |
26 | #include "slog.h" |
27 | #include "iom.h" |
27 | #include "iom.h" |
28 | |
28 | |
29 | inline bool lowest_first (const time_watcher *a, const time_watcher *b) |
29 | inline bool earliest_first (const time_watcher *a, const time_watcher *b) |
30 | { |
30 | { |
31 | return a->at > b->at; |
31 | return a->at > b->at; |
32 | } |
32 | } |
33 | |
33 | |
34 | tstamp NOW; |
34 | tstamp NOW; |
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45 | iom.reg (this); |
45 | iom.reg (this); |
46 | } |
46 | } |
47 | |
47 | |
48 | void time_watcher::trigger () |
48 | void time_watcher::trigger () |
49 | { |
49 | { |
50 | call (at); |
50 | call (*this); |
51 | |
51 | |
52 | if (registered) |
52 | if (registered) |
53 | iom.reschedule_time_watchers (); |
53 | iom.reschedule_time_watchers (); |
54 | else |
54 | else |
55 | iom.reg (this); |
55 | iom.reg (this); |
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59 | { |
59 | { |
60 | if (!registered) |
60 | if (!registered) |
61 | iom.reg (this); |
61 | iom.reg (this); |
62 | } |
62 | } |
63 | |
63 | |
64 | void io_manager::reg (int fd, short events, io_watcher *w) |
64 | void io_manager::reg (io_watcher *w) |
65 | { |
65 | { |
66 | pollfd pfd; |
66 | pollfd pfd; |
67 | |
67 | |
68 | pfd.fd = fd; |
68 | pfd.fd = w->fd; |
69 | pfd.events = events; |
69 | pfd.events = w->events; |
70 | |
70 | |
71 | pfs.push_back (pfd); |
71 | pfs.push_back (pfd); |
72 | iow.push_back (w); |
72 | iow.push_back (w); |
73 | } |
73 | } |
74 | |
74 | |
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97 | } |
97 | } |
98 | } |
98 | } |
99 | |
99 | |
100 | void io_manager::reschedule_time_watchers () |
100 | void io_manager::reschedule_time_watchers () |
101 | { |
101 | { |
102 | make_heap (tw.begin (), tw.end (), lowest_first); |
102 | make_heap (tw.begin (), tw.end (), earliest_first); |
103 | } |
103 | } |
104 | |
104 | |
105 | void io_manager::reg (time_watcher *w) |
105 | void io_manager::reg (time_watcher *w) |
106 | { |
106 | { |
107 | if (w->registered) |
107 | if (w->registered) |
108 | slog (L_CRIT, "FATAL: io_manager::reg(time_watcher) called on already-registered watcher"); |
108 | slog (L_CRIT, "FATAL: io_manager::reg(time_watcher) called on already-registered watcher"); |
109 | |
109 | |
110 | w->registered = true; |
110 | w->registered = true; |
111 | |
111 | |
112 | tw.push_back (w); |
112 | tw.push_back (w); |
113 | push_heap (tw.begin (), tw.end (), lowest_first); |
113 | push_heap (tw.begin (), tw.end (), earliest_first); |
114 | } |
114 | } |
115 | |
115 | |
116 | void io_manager::unreg (time_watcher *w) |
116 | void io_manager::unreg (time_watcher *w) |
117 | { |
117 | { |
118 | if (w->registered) |
118 | if (w->registered) |
… | |
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151 | while (tw[0]->at <= NOW) |
151 | while (tw[0]->at <= NOW) |
152 | { |
152 | { |
153 | // remove the first watcher |
153 | // remove the first watcher |
154 | time_watcher *w = tw[0]; |
154 | time_watcher *w = tw[0]; |
155 | |
155 | |
156 | pop_heap (tw.begin (), tw.end (), lowest_first); |
156 | pop_heap (tw.begin (), tw.end (), earliest_first); |
157 | tw.pop_back (); |
157 | tw.pop_back (); |
158 | |
158 | |
159 | w->registered = false; |
159 | w->registered = false; |
160 | |
160 | |
161 | // call it |
161 | // call it |
162 | w->call (w->at); |
162 | w->call (*w); |
163 | |
163 | |
164 | // re-add it if necessary |
164 | // re-add it if necessary |
165 | if (w->at >= 0 && !w->registered) |
165 | if (w->at >= 0 && !w->registered) |
166 | reg (w); |
166 | reg (w); |
167 | } |
167 | } |
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170 | |
170 | |
171 | int fds = poll (&pfs[0], pfs.size (), timeout); |
171 | int fds = poll (&pfs[0], pfs.size (), timeout); |
172 | |
172 | |
173 | set_now (); |
173 | set_now (); |
174 | |
174 | |
175 | for (unsigned int i = 0; fds > 0 && i < iow.size (); ++i) |
175 | vector<io_watcher *>::iterator w; |
|
|
176 | vector<pollfd>::iterator p; |
|
|
177 | |
|
|
178 | for (w = iow.begin (), p = pfs.begin (); |
|
|
179 | fds > 0 && w < iow.end (); |
|
|
180 | ++w, ++p) |
176 | if (pfs[i].revents) |
181 | if (p->revents) |
177 | { |
182 | { |
178 | --fds; |
183 | --fds; |
179 | iow[i]->call (pfs[i].fd, pfs[i].revents); |
184 | (*w)->call (**w, p->revents); |
180 | } |
185 | } |
181 | } |
186 | } |
182 | } |
187 | } |
183 | |
188 | |
184 | void io_manager::idle_cb (tstamp &ts) |
189 | void io_manager::idle_cb (time_watcher &w) |
185 | { |
190 | { |
186 | ts = NOW + 86400; // wake up every day, for no good reason |
191 | w.at = NOW + 86400; // wake up every day, for no good reason |
187 | } |
192 | } |
188 | |
193 | |
189 | io_manager::io_manager () |
194 | io_manager::io_manager () |
190 | { |
195 | { |
191 | set_now (); |
196 | set_now (); |