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| 21 | #include <sys/time.h> |
21 | #include <sys/time.h> |
| 22 | |
22 | |
| 23 | #include <algorithm> |
23 | #include <algorithm> |
| 24 | #include <functional> |
24 | #include <functional> |
| 25 | |
25 | |
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26 | #include "gettext.h" |
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27 | |
| 26 | #include "slog.h" |
28 | #include "slog.h" |
| 27 | #include "iom.h" |
29 | #include "iom.h" |
| 28 | |
30 | |
| 29 | tstamp NOW; |
31 | tstamp NOW; |
| 30 | bool iom_valid; |
32 | bool iom_valid; |
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| 36 | } |
38 | } |
| 37 | |
39 | |
| 38 | void time_watcher::set (tstamp when) |
40 | void time_watcher::set (tstamp when) |
| 39 | { |
41 | { |
| 40 | at = when; |
42 | at = when; |
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43 | |
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44 | if (registered) |
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45 | iom.reschedule_time_watchers (); |
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46 | } |
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47 | |
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48 | void time_watcher::trigger () |
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49 | { |
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50 | call (*this); |
| 41 | |
51 | |
| 42 | if (registered) |
52 | if (registered) |
| 43 | iom.reschedule_time_watchers (); |
53 | iom.reschedule_time_watchers (); |
| 44 | else |
54 | else |
| 45 | iom.reg (this); |
55 | iom.reg (this); |
| 46 | } |
56 | } |
| 47 | |
57 | |
| 48 | void time_watcher::trigger () |
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| 49 | { |
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| 50 | call (*this); |
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| 51 | |
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| 52 | if (registered) |
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| 53 | iom.reschedule_time_watchers (); |
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| 54 | else |
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| 55 | iom.reg (this); |
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| 56 | } |
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| 57 | |
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| 58 | void time_watcher::start () |
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| 59 | { |
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| 60 | if (!registered) |
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| 61 | iom.reg (this); |
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| 62 | } |
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| 63 | |
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| 64 | time_watcher::~time_watcher () |
58 | time_watcher::~time_watcher () |
| 65 | { |
59 | { |
| 66 | if (iom_valid) |
60 | if (iom_valid) |
| 67 | iom.unreg (this); |
61 | iom.unreg (this); |
| 68 | } |
62 | } |
| 69 | |
63 | |
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64 | void io_watcher::set(int fd_, short events_) |
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65 | { |
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66 | fd = fd_; |
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67 | events = events_; |
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68 | |
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69 | if (registered) |
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70 | { |
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71 | iom.unreg (this); |
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72 | iom.reg (this); |
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73 | } |
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74 | } |
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75 | |
| 70 | io_watcher::~io_watcher () |
76 | io_watcher::~io_watcher () |
| 71 | { |
77 | { |
| 72 | if (iom_valid) |
78 | if (iom_valid) |
| 73 | iom.unreg (this); |
79 | iom.unreg (this); |
| 74 | } |
80 | } |
| 75 | |
81 | |
| 76 | void io_manager::reg (io_watcher *w) |
82 | void io_manager::reg (io_watcher *w) |
| 77 | { |
83 | { |
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84 | if (!w->registered) |
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85 | { |
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86 | w->registered = true; |
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87 | |
| 78 | pollfd pfd; |
88 | pollfd pfd; |
| 79 | |
89 | |
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90 | pfd.fd = w->fd; |
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91 | pfd.events = w->events; |
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92 | |
| 80 | pfs.push_back (pfd); |
93 | pfs.push_back (pfd); |
| 81 | iow.push_back (w); |
94 | iow.push_back (w); |
| 82 | |
95 | } |
| 83 | w->p = &(*(pfs.end () - 1)); |
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| 84 | } |
96 | } |
| 85 | |
97 | |
| 86 | void io_manager::unreg (io_watcher *w) |
98 | void io_manager::unreg (io_watcher *w) |
| 87 | { |
99 | { |
| 88 | if (w->p) |
100 | if (w->registered) |
| 89 | { |
101 | { |
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102 | w->registered = false; |
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103 | |
| 90 | unsigned int sz = iow.size (); |
104 | unsigned int sz = iow.size (); |
| 91 | unsigned int i = find (iow.begin (), iow.end (), w) - iow.begin (); |
105 | unsigned int i = find (iow.begin (), iow.end (), w) - iow.begin (); |
| 92 | |
106 | |
| 93 | assert (i != sz); |
107 | assert (i != sz); |
| 94 | |
108 | |
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| 105 | else |
119 | else |
| 106 | { |
120 | { |
| 107 | iow[i] = iow[sz - 1]; iow.pop_back (); |
121 | iow[i] = iow[sz - 1]; iow.pop_back (); |
| 108 | pfs[i] = pfs[sz - 1]; pfs.pop_back (); |
122 | pfs[i] = pfs[sz - 1]; pfs.pop_back (); |
| 109 | } |
123 | } |
| 110 | |
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| 111 | w->p = 0; |
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| 112 | } |
124 | } |
| 113 | } |
125 | } |
| 114 | |
126 | |
| 115 | void io_manager::reschedule_time_watchers () |
127 | void io_manager::reschedule_time_watchers () |
| 116 | { |
128 | { |
| 117 | make_heap (tw.begin (), tw.end (), earliest_first); |
129 | make_heap (tw.begin (), tw.end (), earliest_first); |
| 118 | } |
130 | } |
| 119 | |
131 | |
| 120 | void io_manager::reg (time_watcher *w) |
132 | void io_manager::reg (time_watcher *w) |
| 121 | { |
133 | { |
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134 | if (!w->registered) |
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135 | { |
| 122 | w->registered = true; |
136 | w->registered = true; |
| 123 | |
137 | |
| 124 | tw.push_back (w); |
138 | tw.push_back (w); |
| 125 | push_heap (tw.begin (), tw.end (), earliest_first); |
139 | push_heap (tw.begin (), tw.end (), earliest_first); |
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140 | } |
| 126 | } |
141 | } |
| 127 | |
142 | |
| 128 | void io_manager::unreg (time_watcher *w) |
143 | void io_manager::unreg (time_watcher *w) |
| 129 | { |
144 | { |
| 130 | if (w->registered) |
145 | if (w->registered) |
| 131 | { |
146 | { |
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147 | w->registered = false; |
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148 | |
| 132 | unsigned int sz = tw.size (); |
149 | unsigned int sz = tw.size (); |
| 133 | unsigned int i = find (tw.begin (), tw.end (), w) - tw.begin (); |
150 | unsigned int i = find (tw.begin (), tw.end (), w) - tw.begin (); |
| 134 | |
151 | |
| 135 | assert (i != sz); |
152 | assert (i != sz); |
| 136 | |
153 | |
| 137 | if (i != sz - 1) |
154 | if (i != sz - 1) |
| 138 | tw[i] = tw[sz - 1]; |
155 | tw[i] = tw[sz - 1]; |
| 139 | |
156 | |
| 140 | tw.pop_back (); |
157 | tw.pop_back (); |
| 141 | reschedule_time_watchers (); |
158 | reschedule_time_watchers (); |
| 142 | |
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| 143 | w->registered = false; |
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| 144 | } |
159 | } |
| 145 | } |
160 | } |
| 146 | |
161 | |
| 147 | inline void set_now (void) |
162 | inline void set_now (void) |
| 148 | { |
163 | { |
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| 190 | fds > 0 && w < iow.end (); |
205 | fds > 0 && w < iow.end (); |
| 191 | ++w, ++p) |
206 | ++w, ++p) |
| 192 | if (p->revents) |
207 | if (p->revents) |
| 193 | { |
208 | { |
| 194 | --fds; |
209 | --fds; |
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210 | |
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211 | if (p->revents & POLLNVAL) |
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212 | { |
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213 | slog (L_ERR, _("io_watcher started on illegal file descriptor, disabling.")); |
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214 | (*w)->stop (); |
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215 | } |
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216 | else |
| 195 | (*w)->call (**w, p->revents); |
217 | (*w)->call (**w, p->revents); |
| 196 | } |
218 | } |
| 197 | } |
219 | } |
| 198 | } |
220 | } |
| 199 | |
221 | |
| 200 | void io_manager::idle_cb (time_watcher &w) |
222 | void io_manager::idle_cb (time_watcher &w) |
