… | |
… | |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
30 | */ |
31 | |
31 | |
32 | #include <stddef.h> |
32 | #include <stddef.h> |
33 | #include <stdlib.h> |
33 | #include <stdlib.h> |
|
|
34 | #include <assert.h> |
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35 | |
|
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36 | #ifndef WIN32 |
34 | #include <sys/time.h> |
37 | # include <sys/time.h> |
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38 | #endif |
35 | |
39 | |
|
|
40 | #ifdef EV_EVENT_H |
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|
41 | # include EV_EVENT_H |
|
|
42 | #else |
36 | #include "event.h" |
43 | # include "event.h" |
|
|
44 | #endif |
37 | |
45 | |
|
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46 | #if EV_MULTIPLICITY |
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|
47 | # define dLOOPev struct ev_loop *loop = (struct ev_loop *)ev->ev_base |
|
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48 | # define dLOOPbase struct ev_loop *loop = (struct ev_loop *)base |
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49 | #else |
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50 | # define dLOOPev |
|
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51 | # define dLOOPbase |
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52 | #endif |
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53 | |
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54 | /* never accessed, will always be cast from/to ev_loop */ |
38 | struct event_base |
55 | struct event_base |
39 | { |
56 | { |
40 | int dummy; |
57 | int dummy; |
41 | }; |
58 | }; |
42 | |
59 | |
43 | static int x_actives; |
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44 | |
|
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45 | static struct event_base x_base, *x_cur; |
60 | static struct event_base *x_cur; |
46 | |
61 | |
47 | static void |
62 | static void |
48 | tv_set (struct timeval *tv, ev_tstamp at) |
63 | tv_set (struct timeval *tv, ev_tstamp at) |
49 | { |
64 | { |
50 | tv->tv_sec = (long)at; |
65 | tv->tv_sec = (long)at; |
… | |
… | |
72 | return "libev"; |
87 | return "libev"; |
73 | } |
88 | } |
74 | |
89 | |
75 | void *event_init (void) |
90 | void *event_init (void) |
76 | { |
91 | { |
77 | if (ev_init (0)) |
92 | #if EV_MULTIPLICITY |
78 | return x_cur = &x_base; |
93 | if (x_cur) |
|
|
94 | x_cur = (struct event_base *)ev_loop_new (EVFLAG_AUTO); |
|
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95 | else |
|
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96 | x_cur = (struct event_base *)ev_default_loop (EVFLAG_AUTO); |
|
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97 | #else |
|
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98 | assert (("multiple event bases not supported when not compiled with EV_MULTIPLICITY", !x_cur)); |
79 | |
99 | |
|
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100 | x_cur = (struct event_base *)(long)ev_default_loop (EVFLAG_AUTO); |
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101 | #endif |
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102 | |
80 | return 0; |
103 | return x_cur; |
81 | } |
104 | } |
82 | |
105 | |
83 | void event_base_free (struct event_base *base) |
106 | void event_base_free (struct event_base *base) |
84 | { |
107 | { |
85 | /* nop */ |
108 | dLOOPbase; |
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109 | |
|
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110 | #if EV_MULTIPLICITY |
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111 | if (ev_default_loop (EVMETHOD_AUTO) != loop) |
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112 | ev_loop_destroy (loop); |
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113 | #endif |
86 | } |
114 | } |
87 | |
115 | |
88 | int event_dispatch (void) |
116 | int event_dispatch (void) |
89 | { |
117 | { |
90 | return event_base_dispatch (x_cur); |
118 | return event_base_dispatch (x_cur); |
… | |
… | |
108 | } |
136 | } |
109 | |
137 | |
110 | static void |
138 | static void |
111 | x_cb (struct event *ev, int revents) |
139 | x_cb (struct event *ev, int revents) |
112 | { |
140 | { |
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141 | revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; |
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142 | |
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143 | ev->ev_res = revents; |
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144 | ev->ev_callback (ev->ev_fd, (short)revents, ev->ev_arg); |
|
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145 | } |
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146 | |
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147 | static void |
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148 | x_cb_sig (EV_P_ struct ev_signal *w, int revents) |
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149 | { |
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150 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.sig)); |
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151 | |
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152 | if (revents & EV_ERROR) |
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153 | event_del (ev); |
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154 | |
|
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155 | x_cb (ev, revents); |
|
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156 | } |
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157 | |
|
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158 | static void |
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159 | x_cb_io (EV_P_ struct ev_io *w, int revents) |
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160 | { |
|
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161 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, iosig.io)); |
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162 | |
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163 | if (revents & EV_ERROR) |
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164 | event_del (ev); |
|
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165 | else if (!(ev->ev_events & EV_PERSIST) && ev_is_active (w)) |
|
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166 | { |
|
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167 | ev_io_stop (EV_A_ w); |
|
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168 | ev->ev_flags &= ~EVLIST_INSERTED; |
|
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169 | } |
|
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170 | |
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171 | x_cb (ev, revents); |
|
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172 | } |
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173 | |
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174 | static void |
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175 | x_cb_to (EV_P_ struct ev_timer *w, int revents) |
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176 | { |
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177 | struct event *ev = (struct event *)(((char *)w) - offsetof (struct event, to)); |
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178 | |
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179 | event_del (ev); |
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180 | |
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181 | x_cb (ev, revents); |
|
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182 | } |
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183 | |
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184 | void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) |
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185 | { |
113 | if (ev->ev_events & EV_SIGNAL) |
186 | if (events & EV_SIGNAL) |
114 | { |
187 | ev_init (&ev->iosig.sig, x_cb_sig); |
115 | /* sig */ |
|
|
116 | if (ev_is_active (&ev->iosig.sig)) |
|
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117 | { |
|
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118 | ev_signal_stop (&ev->iosig.sig); |
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119 | --x_actives; |
|
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120 | } |
|
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121 | } |
|
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122 | else |
188 | else |
123 | { |
|
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124 | /* io */ |
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125 | if (!(ev->ev_events & EV_PERSIST) && ev_is_active (&ev->iosig.io)) |
|
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126 | { |
|
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127 | ev_io_stop (&ev->iosig.io); |
|
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128 | --x_actives; |
|
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129 | } |
|
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130 | } |
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131 | |
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132 | revents &= EV_READ | EV_WRITE | EV_TIMEOUT | EV_SIGNAL; |
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133 | |
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134 | if (revents & EV_TIMEOUT) |
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135 | --x_actives; |
|
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136 | |
|
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137 | ev->ev_res = revents; |
|
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138 | ev->ev_callback (ev->ev_fd, revents, ev->ev_arg); |
|
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139 | } |
|
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140 | |
|
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141 | static void |
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142 | x_cb_io (struct ev_io *w, int revents) |
|
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143 | { |
|
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144 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.io)), revents); |
|
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145 | } |
|
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146 | |
|
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147 | static void |
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148 | x_cb_to (struct ev_timer *w, int revents) |
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149 | { |
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150 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, to)), revents); |
|
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151 | } |
|
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152 | |
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153 | static void |
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154 | x_cb_sig (struct ev_signal *w, int revents) |
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155 | { |
|
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156 | x_cb ((struct event *)(((char *)w) - offsetof (struct event, iosig.sig)), revents); |
|
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157 | } |
|
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158 | |
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159 | void event_set (struct event *ev, int fd, short events, void (*cb)(int, short, void *), void *arg) |
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160 | { |
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161 | if (events & EV_SIGNAL) |
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162 | ev_watcher_init (&ev->iosig.sig, x_cb_sig); |
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163 | else |
|
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164 | ev_watcher_init (&ev->iosig.io, x_cb_io); |
189 | ev_init (&ev->iosig.io, x_cb_io); |
165 | |
190 | |
166 | ev_watcher_init (&ev->to, x_cb_to); |
191 | ev_init (&ev->to, x_cb_to); |
167 | |
192 | |
168 | ev->ev_base = x_cur; |
193 | ev->ev_base = x_cur; /* not threadsafe, but its like libevent works */ |
169 | ev->ev_fd = fd; |
194 | ev->ev_fd = fd; |
170 | ev->ev_events = events; |
195 | ev->ev_events = events; |
171 | ev->ev_pri = 0; |
196 | ev->ev_pri = 0; |
172 | ev->ev_callback = cb; |
197 | ev->ev_callback = cb; |
173 | ev->ev_arg = arg; |
198 | ev->ev_arg = arg; |
174 | ev->ev_res = 0; |
199 | ev->ev_res = 0; |
|
|
200 | ev->ev_flags = EVLIST_INIT; |
175 | } |
201 | } |
176 | |
202 | |
177 | int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
203 | int event_once (int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
178 | { |
204 | { |
179 | return event_base_once (x_cur, fd, events, cb, arg, tv); |
205 | return event_base_once (x_cur, fd, events, cb, arg, tv); |
180 | } |
206 | } |
181 | |
207 | |
182 | int event_add (struct event *ev, struct timeval *tv) |
208 | int event_add (struct event *ev, struct timeval *tv) |
183 | { |
209 | { |
|
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210 | dLOOPev; |
|
|
211 | |
184 | /* disable all watchers */ |
212 | /* disable all watchers */ |
185 | event_del (ev); |
213 | event_del (ev); |
186 | |
214 | |
187 | if (ev->ev_events & EV_SIGNAL) |
215 | if (ev->ev_events & EV_SIGNAL) |
188 | { |
216 | { |
189 | ev_signal_set (&ev->iosig.sig, ev->ev_fd); |
217 | ev_signal_set (&ev->iosig.sig, ev->ev_fd); |
190 | ev_signal_start (&ev->iosig.sig); |
218 | ev_signal_start (EV_A_ &ev->iosig.sig); |
191 | ++x_actives; |
219 | |
|
|
220 | ev->ev_flags |= EVLIST_SIGNAL; |
192 | } |
221 | } |
193 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
222 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
194 | { |
223 | { |
195 | ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); |
224 | ev_io_set (&ev->iosig.io, ev->ev_fd, ev->ev_events & (EV_READ | EV_WRITE)); |
196 | ev_io_start (&ev->iosig.io); |
225 | ev_io_start (EV_A_ &ev->iosig.io); |
197 | ++x_actives; |
226 | |
|
|
227 | ev->ev_flags |= EVLIST_INSERTED; |
198 | } |
228 | } |
199 | |
229 | |
200 | if (tv) |
230 | if (tv) |
201 | { |
231 | { |
202 | ev_timer_set (&ev->to, tv_get (tv), 0.); |
232 | ev_timer_set (&ev->to, tv_get (tv), 0.); |
203 | ev_timer_start (&ev->to); |
233 | ev_timer_start (EV_A_ &ev->to); |
204 | ++x_actives; |
234 | |
|
|
235 | ev->ev_flags |= EVLIST_TIMEOUT; |
205 | } |
236 | } |
|
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237 | |
|
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238 | ev->ev_flags |= EVLIST_ACTIVE; |
206 | |
239 | |
207 | return 0; |
240 | return 0; |
208 | } |
241 | } |
209 | |
242 | |
210 | int event_del (struct event *ev) |
243 | int event_del (struct event *ev) |
211 | { |
244 | { |
|
|
245 | dLOOPev; |
|
|
246 | |
212 | if (ev->ev_events & EV_SIGNAL) |
247 | if (ev->ev_events & EV_SIGNAL) |
213 | { |
248 | { |
214 | /* sig */ |
249 | /* sig */ |
215 | if (ev_is_active (&ev->iosig.sig)) |
250 | if (ev_is_active (&ev->iosig.sig)) |
216 | { |
|
|
217 | ev_signal_stop (&ev->iosig.sig); |
251 | ev_signal_stop (EV_A_ &ev->iosig.sig); |
218 | --x_actives; |
|
|
219 | } |
|
|
220 | } |
252 | } |
221 | else |
253 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
222 | { |
254 | { |
223 | /* io */ |
255 | /* io */ |
224 | if (ev_is_active (&ev->iosig.io)) |
256 | if (ev_is_active (&ev->iosig.io)) |
225 | { |
|
|
226 | ev_io_stop (&ev->iosig.io); |
257 | ev_io_stop (EV_A_ &ev->iosig.io); |
227 | --x_actives; |
|
|
228 | } |
|
|
229 | } |
258 | } |
230 | |
259 | |
231 | if (ev_is_active (&ev->to)) |
260 | if (ev_is_active (&ev->to)) |
232 | { |
|
|
233 | ev_timer_stop (&ev->to); |
261 | ev_timer_stop (EV_A_ &ev->to); |
234 | --x_actives; |
|
|
235 | } |
|
|
236 | |
262 | |
|
|
263 | ev->ev_flags = EVLIST_INIT; |
|
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264 | |
237 | return 0; |
265 | return 0; |
|
|
266 | } |
|
|
267 | |
|
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268 | void event_active (struct event *ev, int res, short ncalls) |
|
|
269 | { |
|
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270 | dLOOPev; |
|
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271 | |
|
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272 | if (res & EV_TIMEOUT) |
|
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273 | ev_feed_event (EV_A_ &ev->to, res & EV_TIMEOUT); |
|
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274 | |
|
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275 | if (res & EV_SIGNAL) |
|
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276 | ev_feed_event (EV_A_ &ev->iosig.sig, res & EV_SIGNAL); |
|
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277 | |
|
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278 | if (res & (EV_READ | EV_WRITE)) |
|
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279 | ev_feed_event (EV_A_ &ev->iosig.io, res & (EV_READ | EV_WRITE)); |
238 | } |
280 | } |
239 | |
281 | |
240 | int event_pending (struct event *ev, short events, struct timeval *tv) |
282 | int event_pending (struct event *ev, short events, struct timeval *tv) |
241 | { |
283 | { |
242 | short revents = 0; |
284 | short revents = 0; |
|
|
285 | dLOOPev; |
|
|
286 | |
243 | |
287 | |
244 | if (ev->ev_events & EV_SIGNAL) |
288 | if (ev->ev_events & EV_SIGNAL) |
245 | { |
289 | { |
246 | /* sig */ |
290 | /* sig */ |
247 | if (ev->iosig.sig.pending) |
291 | if (ev_is_active (&ev->iosig.sig) || ev_is_pending (&ev->iosig.sig)) |
248 | revents |= EV_SIGNAL; |
292 | revents |= EV_SIGNAL; |
249 | } |
293 | } |
250 | else |
294 | else if (ev->ev_events & (EV_READ | EV_WRITE)) |
251 | { |
295 | { |
252 | /* io */ |
296 | /* io */ |
253 | if (ev->iosig.io.pending) |
297 | if (ev_is_active (&ev->iosig.io) || ev_is_pending (&ev->iosig.io)) |
254 | revents |= ev->ev_events & (EV_READ | EV_WRITE); |
298 | revents |= ev->ev_events & (EV_READ | EV_WRITE); |
255 | } |
299 | } |
256 | |
300 | |
257 | if (ev->to.pending) |
301 | if (ev->ev_events & EV_TIMEOUT || ev_is_active (&ev->to) || ev_is_pending (&ev->to)) |
258 | { |
302 | { |
259 | revents |= EV_TIMEOUT; |
303 | revents |= EV_TIMEOUT; |
260 | |
304 | |
261 | if (tv) |
305 | if (tv) |
262 | tv_set (tv, ev_now); /* not sure if this is right :) */ |
306 | tv_set (tv, ev_now (EV_A)); /* not sure if this is right :) */ |
263 | } |
307 | } |
264 | |
308 | |
265 | return events & revents; |
309 | return events & revents; |
266 | } |
310 | } |
267 | |
311 | |
… | |
… | |
284 | return 0; |
328 | return 0; |
285 | } |
329 | } |
286 | |
330 | |
287 | int event_base_loop (struct event_base *base, int flags) |
331 | int event_base_loop (struct event_base *base, int flags) |
288 | { |
332 | { |
289 | do |
333 | dLOOPbase; |
290 | { |
334 | |
291 | ev_loop (flags | EVLOOP_ONESHOT); |
335 | ev_loop (EV_A_ flags); |
292 | } |
|
|
293 | while (!(flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK)) && x_actives && !ev_loop_done); |
|
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294 | |
336 | |
295 | return 0; |
337 | return 0; |
296 | } |
338 | } |
297 | |
339 | |
298 | int event_base_dispatch (struct event_base *base) |
340 | int event_base_dispatch (struct event_base *base) |
299 | { |
341 | { |
300 | return event_base_loop (base, 0); |
342 | return event_base_loop (base, 0); |
301 | } |
343 | } |
302 | |
344 | |
303 | static void |
345 | static void |
304 | x_loopexit_cb (int revents, void *arg) |
346 | x_loopexit_cb (int revents, void *base) |
305 | { |
347 | { |
306 | ev_loop_done = 2; |
348 | dLOOPbase; |
|
|
349 | |
|
|
350 | ev_unloop (EV_A_ EVUNLOOP_ONCE); |
307 | } |
351 | } |
308 | |
352 | |
309 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
353 | int event_base_loopexit (struct event_base *base, struct timeval *tv) |
310 | { |
354 | { |
311 | ev_tstamp after = tv_get (tv); |
355 | ev_tstamp after = tv_get (tv); |
|
|
356 | dLOOPbase; |
312 | |
357 | |
313 | ev_once (-1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base); |
358 | ev_once (EV_A_ -1, 0, after >= 0. ? after : 0., x_loopexit_cb, (void *)base); |
314 | |
359 | |
315 | return -1; |
360 | return -1; |
316 | } |
361 | } |
317 | |
362 | |
318 | struct x_once |
363 | struct x_once |
… | |
… | |
323 | }; |
368 | }; |
324 | |
369 | |
325 | static void |
370 | static void |
326 | x_once_cb (int revents, void *arg) |
371 | x_once_cb (int revents, void *arg) |
327 | { |
372 | { |
328 | struct x_once *once = arg; |
373 | struct x_once *once = (struct x_once *)arg; |
329 | |
374 | |
330 | once->cb (once->fd, revents, once->arg); |
375 | once->cb (once->fd, (short)revents, once->arg); |
331 | free (once); |
376 | free (once); |
332 | } |
377 | } |
333 | |
378 | |
334 | int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
379 | int event_base_once (struct event_base *base, int fd, short events, void (*cb)(int, short, void *), void *arg, struct timeval *tv) |
335 | { |
380 | { |
336 | struct x_once *once = malloc (sizeof (struct x_once)); |
381 | struct x_once *once = (struct x_once *)malloc (sizeof (struct x_once)); |
|
|
382 | dLOOPbase; |
337 | |
383 | |
338 | if (!once) |
384 | if (!once) |
339 | return -1; |
385 | return -1; |
340 | |
386 | |
341 | once->fd = fd; |
387 | once->fd = fd; |
342 | once->cb = cb; |
388 | once->cb = cb; |
343 | once->arg = arg; |
389 | once->arg = arg; |
344 | |
390 | |
345 | ev_once (fd, events & (EV_READ | EV_WRITE), tv_get (tv), x_once_cb, (void *)once); |
391 | ev_once (EV_A_ fd, events & (EV_READ | EV_WRITE), tv_get (tv), x_once_cb, (void *)once); |
346 | |
392 | |
347 | return 0; |
393 | return 0; |
348 | } |
394 | } |
349 | |
395 | |
350 | int event_base_priority_init (struct event_base *base, int npri) |
396 | int event_base_priority_init (struct event_base *base, int npri) |
351 | { |
397 | { |
352 | return 0; |
398 | /*dLOOPbase;*/ |
353 | } |
|
|
354 | |
399 | |
|
|
400 | return 0; |
|
|
401 | } |
|
|
402 | |