1 | /* |
1 | /* |
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2 | * libev event processing core, watcher management |
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3 | * |
2 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
3 | * All rights reserved. |
5 | * All rights reserved. |
4 | * |
6 | * |
5 | * Redistribution and use in source and binary forms, with or without |
7 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions are |
8 | * modification, are permitted provided that the following conditions are |
… | |
… | |
24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
27 | * 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. |
28 | */ |
30 | */ |
29 | #if EV_USE_CONFIG_H |
31 | #ifndef EV_STANDALONE |
30 | # include "config.h" |
32 | # include "config.h" |
31 | #endif |
33 | #endif |
32 | |
34 | |
33 | #include <math.h> |
35 | #include <math.h> |
34 | #include <stdlib.h> |
36 | #include <stdlib.h> |
… | |
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40 | #include <stdio.h> |
42 | #include <stdio.h> |
41 | |
43 | |
42 | #include <assert.h> |
44 | #include <assert.h> |
43 | #include <errno.h> |
45 | #include <errno.h> |
44 | #include <sys/types.h> |
46 | #include <sys/types.h> |
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47 | #ifndef WIN32 |
45 | #include <sys/wait.h> |
48 | # include <sys/wait.h> |
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49 | #endif |
46 | #include <sys/time.h> |
50 | #include <sys/time.h> |
47 | #include <time.h> |
51 | #include <time.h> |
48 | |
52 | |
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53 | /**/ |
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54 | |
49 | #ifndef EV_USE_MONOTONIC |
55 | #ifndef EV_USE_MONOTONIC |
50 | # ifdef CLOCK_MONOTONIC |
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51 | # define EV_USE_MONOTONIC 1 |
56 | # define EV_USE_MONOTONIC 1 |
52 | # endif |
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53 | #endif |
57 | #endif |
54 | |
58 | |
55 | #ifndef EV_USE_SELECT |
59 | #ifndef EV_USE_SELECT |
56 | # define EV_USE_SELECT 1 |
60 | # define EV_USE_SELECT 1 |
57 | #endif |
61 | #endif |
58 | |
62 | |
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63 | #ifndef EV_USEV_POLL |
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64 | # define EV_USEV_POLL 0 /* poll is usually slower than select, and not as well tested */ |
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65 | #endif |
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66 | |
59 | #ifndef EV_USE_EPOLL |
67 | #ifndef EV_USE_EPOLL |
60 | # define EV_USE_EPOLL 0 |
68 | # define EV_USE_EPOLL 0 |
61 | #endif |
69 | #endif |
62 | |
70 | |
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71 | #ifndef EV_USE_KQUEUE |
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72 | # define EV_USE_KQUEUE 0 |
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73 | #endif |
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74 | |
63 | #ifndef EV_USE_REALTIME |
75 | #ifndef EV_USE_REALTIME |
64 | # define EV_USE_REALTIME 1 /* posix requirement, but might be slower */ |
76 | # define EV_USE_REALTIME 1 |
65 | #endif |
77 | #endif |
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78 | |
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79 | /**/ |
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80 | |
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81 | #ifndef CLOCK_MONOTONIC |
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82 | # undef EV_USE_MONOTONIC |
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83 | # define EV_USE_MONOTONIC 0 |
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84 | #endif |
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85 | |
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86 | #ifndef CLOCK_REALTIME |
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87 | # undef EV_USE_REALTIME |
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88 | # define EV_USE_REALTIME 0 |
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89 | #endif |
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90 | |
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91 | /**/ |
66 | |
92 | |
67 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
93 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
68 | #define MAX_BLOCKTIME 59.731 |
94 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
69 | #define PID_HASHSIZE 16 /* size of pid hahs table, must be power of two */ |
95 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
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96 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
70 | |
97 | |
71 | #include "ev.h" |
98 | #include "ev.h" |
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99 | |
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100 | #if __GNUC__ >= 3 |
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101 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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102 | # define inline inline |
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103 | #else |
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104 | # define expect(expr,value) (expr) |
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105 | # define inline static |
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106 | #endif |
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107 | |
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108 | #define expect_false(expr) expect ((expr) != 0, 0) |
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109 | #define expect_true(expr) expect ((expr) != 0, 1) |
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110 | |
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111 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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112 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
72 | |
113 | |
73 | typedef struct ev_watcher *W; |
114 | typedef struct ev_watcher *W; |
74 | typedef struct ev_watcher_list *WL; |
115 | typedef struct ev_watcher_list *WL; |
75 | typedef struct ev_watcher_time *WT; |
116 | typedef struct ev_watcher_time *WT; |
76 | |
117 | |
77 | static ev_tstamp now, diff; /* monotonic clock */ |
118 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
78 | ev_tstamp ev_now; |
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79 | int ev_method; |
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80 | |
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81 | static int have_monotonic; /* runtime */ |
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82 | |
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83 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
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84 | static void (*method_modify)(int fd, int oev, int nev); |
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85 | static void (*method_poll)(ev_tstamp timeout); |
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86 | |
119 | |
87 | /*****************************************************************************/ |
120 | /*****************************************************************************/ |
88 | |
121 | |
89 | ev_tstamp |
122 | typedef struct |
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123 | { |
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124 | struct ev_watcher_list *head; |
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125 | unsigned char events; |
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126 | unsigned char reify; |
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127 | } ANFD; |
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128 | |
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129 | typedef struct |
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130 | { |
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131 | W w; |
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132 | int events; |
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133 | } ANPENDING; |
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134 | |
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135 | #if EV_MULTIPLICITY |
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136 | |
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137 | struct ev_loop |
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138 | { |
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139 | # define VAR(name,decl) decl; |
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140 | # include "ev_vars.h" |
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141 | }; |
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142 | # undef VAR |
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143 | # include "ev_wrap.h" |
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144 | |
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145 | #else |
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146 | |
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147 | # define VAR(name,decl) static decl; |
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148 | # include "ev_vars.h" |
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149 | # undef VAR |
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150 | |
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151 | #endif |
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152 | |
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153 | /*****************************************************************************/ |
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154 | |
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155 | inline ev_tstamp |
90 | ev_time (void) |
156 | ev_time (void) |
91 | { |
157 | { |
92 | #if EV_USE_REALTIME |
158 | #if EV_USE_REALTIME |
93 | struct timespec ts; |
159 | struct timespec ts; |
94 | clock_gettime (CLOCK_REALTIME, &ts); |
160 | clock_gettime (CLOCK_REALTIME, &ts); |
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98 | gettimeofday (&tv, 0); |
164 | gettimeofday (&tv, 0); |
99 | return tv.tv_sec + tv.tv_usec * 1e-6; |
165 | return tv.tv_sec + tv.tv_usec * 1e-6; |
100 | #endif |
166 | #endif |
101 | } |
167 | } |
102 | |
168 | |
103 | static ev_tstamp |
169 | inline ev_tstamp |
104 | get_clock (void) |
170 | get_clock (void) |
105 | { |
171 | { |
106 | #if EV_USE_MONOTONIC |
172 | #if EV_USE_MONOTONIC |
107 | if (have_monotonic) |
173 | if (expect_true (have_monotonic)) |
108 | { |
174 | { |
109 | struct timespec ts; |
175 | struct timespec ts; |
110 | clock_gettime (CLOCK_MONOTONIC, &ts); |
176 | clock_gettime (CLOCK_MONOTONIC, &ts); |
111 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
177 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
112 | } |
178 | } |
113 | #endif |
179 | #endif |
114 | |
180 | |
115 | return ev_time (); |
181 | return ev_time (); |
116 | } |
182 | } |
117 | |
183 | |
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184 | ev_tstamp |
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185 | ev_now (EV_P) |
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186 | { |
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187 | return rt_now; |
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188 | } |
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189 | |
118 | #define array_nextsize(n) (((n) << 1) | 4 & ~3) |
190 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
119 | #define array_prevsize(n) (((n) >> 1) | 4 & ~3) |
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120 | |
191 | |
121 | #define array_needsize(base,cur,cnt,init) \ |
192 | #define array_needsize(base,cur,cnt,init) \ |
122 | if ((cnt) > cur) \ |
193 | if (expect_false ((cnt) > cur)) \ |
123 | { \ |
194 | { \ |
124 | int newcnt = cur; \ |
195 | int newcnt = cur; \ |
125 | do \ |
196 | do \ |
126 | { \ |
197 | { \ |
127 | newcnt = array_nextsize (newcnt); \ |
198 | newcnt = array_roundsize (base, newcnt << 1); \ |
128 | } \ |
199 | } \ |
129 | while ((cnt) > newcnt); \ |
200 | while ((cnt) > newcnt); \ |
130 | \ |
201 | \ |
131 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
202 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
132 | init (base + cur, newcnt - cur); \ |
203 | init (base + cur, newcnt - cur); \ |
133 | cur = newcnt; \ |
204 | cur = newcnt; \ |
134 | } |
205 | } |
135 | |
206 | |
136 | /*****************************************************************************/ |
207 | /*****************************************************************************/ |
137 | |
208 | |
138 | typedef struct |
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139 | { |
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140 | struct ev_io *head; |
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141 | int events; |
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142 | } ANFD; |
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143 | |
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144 | static ANFD *anfds; |
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145 | static int anfdmax; |
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146 | |
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147 | static void |
209 | static void |
148 | anfds_init (ANFD *base, int count) |
210 | anfds_init (ANFD *base, int count) |
149 | { |
211 | { |
150 | while (count--) |
212 | while (count--) |
151 | { |
213 | { |
152 | base->head = 0; |
214 | base->head = 0; |
153 | base->events = EV_NONE; |
215 | base->events = EV_NONE; |
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216 | base->reify = 0; |
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217 | |
154 | ++base; |
218 | ++base; |
155 | } |
219 | } |
156 | } |
220 | } |
157 | |
221 | |
158 | typedef struct |
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159 | { |
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160 | W w; |
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161 | int events; |
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162 | } ANPENDING; |
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163 | |
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164 | static ANPENDING *pendings; |
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165 | static int pendingmax, pendingcnt; |
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166 | |
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167 | static void |
222 | static void |
168 | event (W w, int events) |
223 | event (EV_P_ W w, int events) |
169 | { |
224 | { |
170 | if (w->active) |
225 | if (w->pending) |
171 | { |
226 | { |
172 | w->pending = ++pendingcnt; |
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173 | array_needsize (pendings, pendingmax, pendingcnt, ); |
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174 | pendings [pendingcnt - 1].w = w; |
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175 | pendings [pendingcnt - 1].events = events; |
227 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
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228 | return; |
176 | } |
229 | } |
177 | } |
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178 | |
230 | |
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231 | w->pending = ++pendingcnt [ABSPRI (w)]; |
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232 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
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233 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
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234 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
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235 | } |
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236 | |
179 | static void |
237 | static void |
180 | queue_events (W *events, int eventcnt, int type) |
238 | queue_events (EV_P_ W *events, int eventcnt, int type) |
181 | { |
239 | { |
182 | int i; |
240 | int i; |
183 | |
241 | |
184 | for (i = 0; i < eventcnt; ++i) |
242 | for (i = 0; i < eventcnt; ++i) |
185 | event (events [i], type); |
243 | event (EV_A_ events [i], type); |
186 | } |
244 | } |
187 | |
245 | |
188 | static void |
246 | static void |
189 | fd_event (int fd, int events) |
247 | fd_event (EV_P_ int fd, int events) |
190 | { |
248 | { |
191 | ANFD *anfd = anfds + fd; |
249 | ANFD *anfd = anfds + fd; |
192 | struct ev_io *w; |
250 | struct ev_io *w; |
193 | |
251 | |
194 | for (w = anfd->head; w; w = w->next) |
252 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
195 | { |
253 | { |
196 | int ev = w->events & events; |
254 | int ev = w->events & events; |
197 | |
255 | |
198 | if (ev) |
256 | if (ev) |
199 | event ((W)w, ev); |
257 | event (EV_A_ (W)w, ev); |
200 | } |
258 | } |
201 | } |
259 | } |
202 | |
260 | |
203 | /*****************************************************************************/ |
261 | /*****************************************************************************/ |
204 | |
262 | |
205 | static int *fdchanges; |
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206 | static int fdchangemax, fdchangecnt; |
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207 | |
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208 | static void |
263 | static void |
209 | fd_reify (void) |
264 | fd_reify (EV_P) |
210 | { |
265 | { |
211 | int i; |
266 | int i; |
212 | |
267 | |
213 | for (i = 0; i < fdchangecnt; ++i) |
268 | for (i = 0; i < fdchangecnt; ++i) |
214 | { |
269 | { |
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216 | ANFD *anfd = anfds + fd; |
271 | ANFD *anfd = anfds + fd; |
217 | struct ev_io *w; |
272 | struct ev_io *w; |
218 | |
273 | |
219 | int events = 0; |
274 | int events = 0; |
220 | |
275 | |
221 | for (w = anfd->head; w; w = w->next) |
276 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
222 | events |= w->events; |
277 | events |= w->events; |
223 | |
278 | |
224 | anfd->events &= ~EV_REIFY; |
279 | anfd->reify = 0; |
225 | |
280 | |
226 | if (anfd->events != events) |
281 | if (anfd->events != events) |
227 | { |
282 | { |
228 | method_modify (fd, anfd->events, events); |
283 | method_modify (EV_A_ fd, anfd->events, events); |
229 | anfd->events = events; |
284 | anfd->events = events; |
230 | } |
285 | } |
231 | } |
286 | } |
232 | |
287 | |
233 | fdchangecnt = 0; |
288 | fdchangecnt = 0; |
234 | } |
289 | } |
235 | |
290 | |
236 | static void |
291 | static void |
237 | fd_change (int fd) |
292 | fd_change (EV_P_ int fd) |
238 | { |
293 | { |
239 | if (anfds [fd].events & EV_REIFY || fdchangecnt < 0) |
294 | if (anfds [fd].reify || fdchangecnt < 0) |
240 | return; |
295 | return; |
241 | |
296 | |
242 | anfds [fd].events |= EV_REIFY; |
297 | anfds [fd].reify = 1; |
243 | |
298 | |
244 | ++fdchangecnt; |
299 | ++fdchangecnt; |
245 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
300 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
246 | fdchanges [fdchangecnt - 1] = fd; |
301 | fdchanges [fdchangecnt - 1] = fd; |
247 | } |
302 | } |
248 | |
303 | |
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304 | static void |
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305 | fd_kill (EV_P_ int fd) |
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306 | { |
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307 | struct ev_io *w; |
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308 | |
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309 | while ((w = (struct ev_io *)anfds [fd].head)) |
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310 | { |
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311 | ev_io_stop (EV_A_ w); |
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312 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
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313 | } |
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314 | } |
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315 | |
249 | /* called on EBADF to verify fds */ |
316 | /* called on EBADF to verify fds */ |
250 | static void |
317 | static void |
251 | fd_recheck (void) |
318 | fd_ebadf (EV_P) |
252 | { |
319 | { |
253 | int fd; |
320 | int fd; |
254 | |
321 | |
255 | for (fd = 0; fd < anfdmax; ++fd) |
322 | for (fd = 0; fd < anfdmax; ++fd) |
256 | if (anfds [fd].events) |
323 | if (anfds [fd].events) |
257 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
324 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
258 | while (anfds [fd].head) |
325 | fd_kill (EV_A_ fd); |
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326 | } |
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327 | |
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328 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
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329 | static void |
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330 | fd_enomem (EV_P) |
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331 | { |
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332 | int fd = anfdmax; |
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333 | |
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334 | while (fd--) |
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335 | if (anfds [fd].events) |
259 | { |
336 | { |
260 | event ((W)anfds [fd].head, EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT); |
337 | close (fd); |
261 | ev_io_stop (anfds [fd].head); |
338 | fd_kill (EV_A_ fd); |
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339 | return; |
262 | } |
340 | } |
263 | } |
341 | } |
264 | |
342 | |
265 | /*****************************************************************************/ |
343 | /*****************************************************************************/ |
266 | |
344 | |
267 | static struct ev_timer **timers; |
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268 | static int timermax, timercnt; |
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269 | |
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270 | static struct ev_periodic **periodics; |
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271 | static int periodicmax, periodiccnt; |
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272 | |
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273 | static void |
345 | static void |
274 | upheap (WT *timers, int k) |
346 | upheap (WT *heap, int k) |
275 | { |
347 | { |
276 | WT w = timers [k]; |
348 | WT w = heap [k]; |
277 | |
349 | |
278 | while (k && timers [k >> 1]->at > w->at) |
350 | while (k && heap [k >> 1]->at > w->at) |
279 | { |
351 | { |
280 | timers [k] = timers [k >> 1]; |
352 | heap [k] = heap [k >> 1]; |
281 | timers [k]->active = k + 1; |
353 | heap [k]->active = k + 1; |
282 | k >>= 1; |
354 | k >>= 1; |
283 | } |
355 | } |
284 | |
356 | |
285 | timers [k] = w; |
357 | heap [k] = w; |
286 | timers [k]->active = k + 1; |
358 | heap [k]->active = k + 1; |
287 | |
359 | |
288 | } |
360 | } |
289 | |
361 | |
290 | static void |
362 | static void |
291 | downheap (WT *timers, int N, int k) |
363 | downheap (WT *heap, int N, int k) |
292 | { |
364 | { |
293 | WT w = timers [k]; |
365 | WT w = heap [k]; |
294 | |
366 | |
295 | while (k < (N >> 1)) |
367 | while (k < (N >> 1)) |
296 | { |
368 | { |
297 | int j = k << 1; |
369 | int j = k << 1; |
298 | |
370 | |
299 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
371 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
300 | ++j; |
372 | ++j; |
301 | |
373 | |
302 | if (w->at <= timers [j]->at) |
374 | if (w->at <= heap [j]->at) |
303 | break; |
375 | break; |
304 | |
376 | |
305 | timers [k] = timers [j]; |
377 | heap [k] = heap [j]; |
306 | timers [k]->active = k + 1; |
378 | heap [k]->active = k + 1; |
307 | k = j; |
379 | k = j; |
308 | } |
380 | } |
309 | |
381 | |
310 | timers [k] = w; |
382 | heap [k] = w; |
311 | timers [k]->active = k + 1; |
383 | heap [k]->active = k + 1; |
312 | } |
384 | } |
313 | |
385 | |
314 | /*****************************************************************************/ |
386 | /*****************************************************************************/ |
315 | |
387 | |
316 | typedef struct |
388 | typedef struct |
317 | { |
389 | { |
318 | struct ev_signal *head; |
390 | struct ev_watcher_list *head; |
319 | sig_atomic_t gotsig; |
391 | sig_atomic_t volatile gotsig; |
320 | } ANSIG; |
392 | } ANSIG; |
321 | |
393 | |
322 | static ANSIG *signals; |
394 | static ANSIG *signals; |
323 | static int signalmax; |
395 | static int signalmax; |
324 | |
396 | |
325 | static int sigpipe [2]; |
397 | static int sigpipe [2]; |
326 | static sig_atomic_t gotsig; |
398 | static sig_atomic_t volatile gotsig; |
327 | static struct ev_io sigev; |
|
|
328 | |
399 | |
329 | static void |
400 | static void |
330 | signals_init (ANSIG *base, int count) |
401 | signals_init (ANSIG *base, int count) |
331 | { |
402 | { |
332 | while (count--) |
403 | while (count--) |
333 | { |
404 | { |
334 | base->head = 0; |
405 | base->head = 0; |
335 | base->gotsig = 0; |
406 | base->gotsig = 0; |
|
|
407 | |
336 | ++base; |
408 | ++base; |
337 | } |
409 | } |
338 | } |
410 | } |
339 | |
411 | |
340 | static void |
412 | static void |
… | |
… | |
342 | { |
414 | { |
343 | signals [signum - 1].gotsig = 1; |
415 | signals [signum - 1].gotsig = 1; |
344 | |
416 | |
345 | if (!gotsig) |
417 | if (!gotsig) |
346 | { |
418 | { |
|
|
419 | int old_errno = errno; |
347 | gotsig = 1; |
420 | gotsig = 1; |
348 | write (sigpipe [1], &gotsig, 1); |
421 | write (sigpipe [1], &signum, 1); |
|
|
422 | errno = old_errno; |
349 | } |
423 | } |
350 | } |
424 | } |
351 | |
425 | |
352 | static void |
426 | static void |
353 | sigcb (struct ev_io *iow, int revents) |
427 | sigcb (EV_P_ struct ev_io *iow, int revents) |
354 | { |
428 | { |
355 | struct ev_signal *w; |
429 | struct ev_watcher_list *w; |
356 | int sig; |
430 | int signum; |
357 | |
431 | |
|
|
432 | read (sigpipe [0], &revents, 1); |
358 | gotsig = 0; |
433 | gotsig = 0; |
359 | read (sigpipe [0], &revents, 1); |
|
|
360 | |
434 | |
361 | for (sig = signalmax; sig--; ) |
435 | for (signum = signalmax; signum--; ) |
362 | if (signals [sig].gotsig) |
436 | if (signals [signum].gotsig) |
363 | { |
437 | { |
364 | signals [sig].gotsig = 0; |
438 | signals [signum].gotsig = 0; |
365 | |
439 | |
366 | for (w = signals [sig].head; w; w = w->next) |
440 | for (w = signals [signum].head; w; w = w->next) |
367 | event ((W)w, EV_SIGNAL); |
441 | event (EV_A_ (W)w, EV_SIGNAL); |
368 | } |
442 | } |
369 | } |
443 | } |
370 | |
444 | |
371 | static void |
445 | static void |
372 | siginit (void) |
446 | siginit (EV_P) |
373 | { |
447 | { |
|
|
448 | #ifndef WIN32 |
374 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
449 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
375 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
450 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
376 | |
451 | |
377 | /* rather than sort out wether we really need nb, set it */ |
452 | /* rather than sort out wether we really need nb, set it */ |
378 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
453 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
379 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
454 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
455 | #endif |
380 | |
456 | |
381 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
457 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
382 | ev_io_start (&sigev); |
458 | ev_io_start (EV_A_ &sigev); |
|
|
459 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
383 | } |
460 | } |
384 | |
461 | |
385 | /*****************************************************************************/ |
462 | /*****************************************************************************/ |
386 | |
463 | |
387 | static struct ev_idle **idles; |
464 | #ifndef WIN32 |
388 | static int idlemax, idlecnt; |
|
|
389 | |
|
|
390 | static struct ev_prepare **prepares; |
|
|
391 | static int preparemax, preparecnt; |
|
|
392 | |
|
|
393 | static struct ev_check **checks; |
|
|
394 | static int checkmax, checkcnt; |
|
|
395 | |
|
|
396 | /*****************************************************************************/ |
|
|
397 | |
|
|
398 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
399 | static struct ev_signal childev; |
|
|
400 | |
465 | |
401 | #ifndef WCONTINUED |
466 | #ifndef WCONTINUED |
402 | # define WCONTINUED 0 |
467 | # define WCONTINUED 0 |
403 | #endif |
468 | #endif |
404 | |
469 | |
405 | static void |
470 | static void |
406 | childcb (struct ev_signal *sw, int revents) |
471 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
407 | { |
472 | { |
408 | struct ev_child *w; |
473 | struct ev_child *w; |
|
|
474 | |
|
|
475 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
476 | if (w->pid == pid || !w->pid) |
|
|
477 | { |
|
|
478 | w->priority = sw->priority; /* need to do it *now* */ |
|
|
479 | w->rpid = pid; |
|
|
480 | w->rstatus = status; |
|
|
481 | event (EV_A_ (W)w, EV_CHILD); |
|
|
482 | } |
|
|
483 | } |
|
|
484 | |
|
|
485 | static void |
|
|
486 | childcb (EV_P_ struct ev_signal *sw, int revents) |
|
|
487 | { |
409 | int pid, status; |
488 | int pid, status; |
410 | |
489 | |
411 | while ((pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED)) != -1) |
490 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
412 | for (w = childs [pid & (PID_HASHSIZE - 1)]; w; w = w->next) |
491 | { |
413 | if (w->pid == pid || w->pid == -1) |
492 | /* make sure we are called again until all childs have been reaped */ |
414 | { |
493 | event (EV_A_ (W)sw, EV_SIGNAL); |
415 | w->status = status; |
494 | |
416 | event ((W)w, EV_CHILD); |
495 | child_reap (EV_A_ sw, pid, pid, status); |
417 | } |
496 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
|
|
497 | } |
418 | } |
498 | } |
|
|
499 | |
|
|
500 | #endif |
419 | |
501 | |
420 | /*****************************************************************************/ |
502 | /*****************************************************************************/ |
421 | |
503 | |
|
|
504 | #if EV_USE_KQUEUE |
|
|
505 | # include "ev_kqueue.c" |
|
|
506 | #endif |
422 | #if EV_USE_EPOLL |
507 | #if EV_USE_EPOLL |
423 | # include "ev_epoll.c" |
508 | # include "ev_epoll.c" |
424 | #endif |
509 | #endif |
|
|
510 | #if EV_USEV_POLL |
|
|
511 | # include "ev_poll.c" |
|
|
512 | #endif |
425 | #if EV_USE_SELECT |
513 | #if EV_USE_SELECT |
426 | # include "ev_select.c" |
514 | # include "ev_select.c" |
427 | #endif |
515 | #endif |
428 | |
516 | |
429 | int |
517 | int |
… | |
… | |
436 | ev_version_minor (void) |
524 | ev_version_minor (void) |
437 | { |
525 | { |
438 | return EV_VERSION_MINOR; |
526 | return EV_VERSION_MINOR; |
439 | } |
527 | } |
440 | |
528 | |
441 | int ev_init (int flags) |
529 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
530 | static int |
|
|
531 | enable_secure (void) |
442 | { |
532 | { |
|
|
533 | #ifdef WIN32 |
|
|
534 | return 0; |
|
|
535 | #else |
|
|
536 | return getuid () != geteuid () |
|
|
537 | || getgid () != getegid (); |
|
|
538 | #endif |
|
|
539 | } |
|
|
540 | |
|
|
541 | int |
|
|
542 | ev_method (EV_P) |
|
|
543 | { |
|
|
544 | return method; |
|
|
545 | } |
|
|
546 | |
|
|
547 | inline int |
|
|
548 | loop_init (EV_P_ int methods) |
|
|
549 | { |
443 | if (!ev_method) |
550 | if (!method) |
444 | { |
551 | { |
445 | #if EV_USE_MONOTONIC |
552 | #if EV_USE_MONOTONIC |
446 | { |
553 | { |
447 | struct timespec ts; |
554 | struct timespec ts; |
448 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
555 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
449 | have_monotonic = 1; |
556 | have_monotonic = 1; |
450 | } |
557 | } |
451 | #endif |
558 | #endif |
452 | |
559 | |
453 | ev_now = ev_time (); |
560 | rt_now = ev_time (); |
454 | now = get_clock (); |
561 | mn_now = get_clock (); |
|
|
562 | now_floor = mn_now; |
455 | diff = ev_now - now; |
563 | rtmn_diff = rt_now - mn_now; |
456 | |
564 | |
457 | if (pipe (sigpipe)) |
565 | if (pipe (sigpipe)) |
458 | return 0; |
566 | return 0; |
459 | |
567 | |
|
|
568 | if (methods == EVMETHOD_AUTO) |
|
|
569 | if (!enable_secure () && getenv ("LIBmethodS")) |
|
|
570 | methods = atoi (getenv ("LIBmethodS")); |
|
|
571 | else |
460 | ev_method = EVMETHOD_NONE; |
572 | methods = EVMETHOD_ANY; |
|
|
573 | |
|
|
574 | method = 0; |
|
|
575 | #if EV_USE_KQUEUE |
|
|
576 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
|
|
577 | #endif |
461 | #if EV_USE_EPOLL |
578 | #if EV_USE_EPOLL |
462 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
579 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
|
|
580 | #endif |
|
|
581 | #if EV_USEV_POLL |
|
|
582 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
463 | #endif |
583 | #endif |
464 | #if EV_USE_SELECT |
584 | #if EV_USE_SELECT |
465 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
585 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
466 | #endif |
586 | #endif |
467 | |
587 | |
468 | if (ev_method) |
588 | if (method) |
469 | { |
589 | { |
470 | ev_watcher_init (&sigev, sigcb); |
590 | ev_watcher_init (&sigev, sigcb); |
|
|
591 | ev_set_priority (&sigev, EV_MAXPRI); |
471 | siginit (); |
592 | siginit (EV_A); |
472 | |
593 | |
|
|
594 | #ifndef WIN32 |
473 | ev_signal_init (&childev, childcb, SIGCHLD); |
595 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
596 | ev_set_priority (&childev, EV_MAXPRI); |
474 | ev_signal_start (&childev); |
597 | ev_signal_start (EV_A_ &childev); |
|
|
598 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
599 | #endif |
475 | } |
600 | } |
476 | } |
601 | } |
477 | |
602 | |
478 | return ev_method; |
603 | return method; |
479 | } |
604 | } |
|
|
605 | |
|
|
606 | #if EV_MULTIPLICITY |
|
|
607 | |
|
|
608 | struct ev_loop * |
|
|
609 | ev_loop_new (int methods) |
|
|
610 | { |
|
|
611 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
|
|
612 | |
|
|
613 | if (loop_init (EV_A_ methods)) |
|
|
614 | return loop; |
|
|
615 | |
|
|
616 | ev_loop_delete (loop); |
|
|
617 | |
|
|
618 | return 0; |
|
|
619 | } |
|
|
620 | |
|
|
621 | void |
|
|
622 | ev_loop_delete (EV_P) |
|
|
623 | { |
|
|
624 | /*TODO*/ |
|
|
625 | free (loop); |
|
|
626 | } |
|
|
627 | |
|
|
628 | #else |
|
|
629 | |
|
|
630 | int |
|
|
631 | ev_init (int methods) |
|
|
632 | { |
|
|
633 | return loop_init (methods); |
|
|
634 | } |
|
|
635 | |
|
|
636 | #endif |
480 | |
637 | |
481 | /*****************************************************************************/ |
638 | /*****************************************************************************/ |
482 | |
639 | |
483 | void |
640 | void |
484 | ev_prefork (void) |
641 | ev_fork_prepare (void) |
485 | { |
642 | { |
486 | /* nop */ |
643 | /* nop */ |
487 | } |
644 | } |
488 | |
645 | |
489 | void |
646 | void |
490 | ev_postfork_parent (void) |
647 | ev_fork_parent (void) |
491 | { |
648 | { |
492 | /* nop */ |
649 | /* nop */ |
493 | } |
650 | } |
494 | |
651 | |
495 | void |
652 | void |
496 | ev_postfork_child (void) |
653 | ev_fork_child (void) |
497 | { |
654 | { |
|
|
655 | /*TODO*/ |
|
|
656 | #if !EV_MULTIPLICITY |
498 | #if EV_USE_EPOLL |
657 | #if EV_USE_EPOLL |
499 | if (ev_method == EVMETHOD_EPOLL) |
658 | if (method == EVMETHOD_EPOLL) |
500 | epoll_postfork_child (); |
659 | epoll_postfork_child (EV_A); |
501 | #endif |
660 | #endif |
502 | |
661 | |
503 | ev_io_stop (&sigev); |
662 | ev_io_stop (EV_A_ &sigev); |
504 | close (sigpipe [0]); |
663 | close (sigpipe [0]); |
505 | close (sigpipe [1]); |
664 | close (sigpipe [1]); |
506 | pipe (sigpipe); |
665 | pipe (sigpipe); |
507 | siginit (); |
666 | siginit (EV_A); |
|
|
667 | #endif |
508 | } |
668 | } |
509 | |
669 | |
510 | /*****************************************************************************/ |
670 | /*****************************************************************************/ |
511 | |
671 | |
512 | static void |
672 | static void |
513 | call_pending (void) |
673 | call_pending (EV_P) |
514 | { |
674 | { |
|
|
675 | int pri; |
|
|
676 | |
|
|
677 | for (pri = NUMPRI; pri--; ) |
515 | while (pendingcnt) |
678 | while (pendingcnt [pri]) |
516 | { |
679 | { |
517 | ANPENDING *p = pendings + --pendingcnt; |
680 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
518 | |
681 | |
519 | if (p->w) |
682 | if (p->w) |
520 | { |
683 | { |
521 | p->w->pending = 0; |
684 | p->w->pending = 0; |
522 | p->w->cb (p->w, p->events); |
685 | p->w->cb (EV_A_ p->w, p->events); |
523 | } |
686 | } |
524 | } |
687 | } |
525 | } |
688 | } |
526 | |
689 | |
527 | static void |
690 | static void |
528 | timers_reify (void) |
691 | timers_reify (EV_P) |
529 | { |
692 | { |
530 | while (timercnt && timers [0]->at <= now) |
693 | while (timercnt && timers [0]->at <= mn_now) |
531 | { |
694 | { |
532 | struct ev_timer *w = timers [0]; |
695 | struct ev_timer *w = timers [0]; |
533 | |
|
|
534 | event ((W)w, EV_TIMEOUT); |
|
|
535 | |
696 | |
536 | /* first reschedule or stop timer */ |
697 | /* first reschedule or stop timer */ |
537 | if (w->repeat) |
698 | if (w->repeat) |
538 | { |
699 | { |
|
|
700 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
539 | w->at = now + w->repeat; |
701 | w->at = mn_now + w->repeat; |
540 | assert (("timer timeout in the past, negative repeat?", w->at > now)); |
|
|
541 | downheap ((WT *)timers, timercnt, 0); |
702 | downheap ((WT *)timers, timercnt, 0); |
542 | } |
703 | } |
543 | else |
704 | else |
544 | ev_timer_stop (w); /* nonrepeating: stop timer */ |
705 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
545 | } |
|
|
546 | } |
|
|
547 | |
706 | |
|
|
707 | event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
708 | } |
|
|
709 | } |
|
|
710 | |
548 | static void |
711 | static void |
549 | periodics_reify (void) |
712 | periodics_reify (EV_P) |
550 | { |
713 | { |
551 | while (periodiccnt && periodics [0]->at <= ev_now) |
714 | while (periodiccnt && periodics [0]->at <= rt_now) |
552 | { |
715 | { |
553 | struct ev_periodic *w = periodics [0]; |
716 | struct ev_periodic *w = periodics [0]; |
554 | |
717 | |
555 | /* first reschedule or stop timer */ |
718 | /* first reschedule or stop timer */ |
556 | if (w->interval) |
719 | if (w->interval) |
557 | { |
720 | { |
558 | w->at += floor ((ev_now - w->at) / w->interval + 1.) * w->interval; |
721 | w->at += floor ((rt_now - w->at) / w->interval + 1.) * w->interval; |
559 | assert (("periodic timeout in the past, negative interval?", w->at > ev_now)); |
722 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", w->at > rt_now)); |
560 | downheap ((WT *)periodics, periodiccnt, 0); |
723 | downheap ((WT *)periodics, periodiccnt, 0); |
561 | } |
724 | } |
562 | else |
725 | else |
563 | ev_periodic_stop (w); /* nonrepeating: stop timer */ |
726 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
564 | |
727 | |
565 | event ((W)w, EV_TIMEOUT); |
728 | event (EV_A_ (W)w, EV_PERIODIC); |
566 | } |
729 | } |
567 | } |
730 | } |
568 | |
731 | |
569 | static void |
732 | static void |
570 | periodics_reschedule (ev_tstamp diff) |
733 | periodics_reschedule (EV_P) |
571 | { |
734 | { |
572 | int i; |
735 | int i; |
573 | |
736 | |
574 | /* adjust periodics after time jump */ |
737 | /* adjust periodics after time jump */ |
575 | for (i = 0; i < periodiccnt; ++i) |
738 | for (i = 0; i < periodiccnt; ++i) |
576 | { |
739 | { |
577 | struct ev_periodic *w = periodics [i]; |
740 | struct ev_periodic *w = periodics [i]; |
578 | |
741 | |
579 | if (w->interval) |
742 | if (w->interval) |
580 | { |
743 | { |
581 | ev_tstamp diff = ceil ((ev_now - w->at) / w->interval) * w->interval; |
744 | ev_tstamp diff = ceil ((rt_now - w->at) / w->interval) * w->interval; |
582 | |
745 | |
583 | if (fabs (diff) >= 1e-4) |
746 | if (fabs (diff) >= 1e-4) |
584 | { |
747 | { |
585 | ev_periodic_stop (w); |
748 | ev_periodic_stop (EV_A_ w); |
586 | ev_periodic_start (w); |
749 | ev_periodic_start (EV_A_ w); |
587 | |
750 | |
588 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
751 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
589 | } |
752 | } |
590 | } |
753 | } |
591 | } |
754 | } |
592 | } |
755 | } |
593 | |
756 | |
|
|
757 | inline int |
|
|
758 | time_update_monotonic (EV_P) |
|
|
759 | { |
|
|
760 | mn_now = get_clock (); |
|
|
761 | |
|
|
762 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
763 | { |
|
|
764 | rt_now = rtmn_diff + mn_now; |
|
|
765 | return 0; |
|
|
766 | } |
|
|
767 | else |
|
|
768 | { |
|
|
769 | now_floor = mn_now; |
|
|
770 | rt_now = ev_time (); |
|
|
771 | return 1; |
|
|
772 | } |
|
|
773 | } |
|
|
774 | |
594 | static void |
775 | static void |
595 | time_update (void) |
776 | time_update (EV_P) |
596 | { |
777 | { |
597 | int i; |
778 | int i; |
598 | |
779 | |
599 | ev_now = ev_time (); |
780 | #if EV_USE_MONOTONIC |
600 | |
|
|
601 | if (have_monotonic) |
781 | if (expect_true (have_monotonic)) |
602 | { |
782 | { |
603 | ev_tstamp odiff = diff; |
783 | if (time_update_monotonic (EV_A)) |
604 | |
|
|
605 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
606 | { |
784 | { |
607 | now = get_clock (); |
785 | ev_tstamp odiff = rtmn_diff; |
|
|
786 | |
|
|
787 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
|
|
788 | { |
608 | diff = ev_now - now; |
789 | rtmn_diff = rt_now - mn_now; |
609 | |
790 | |
610 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
791 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
611 | return; /* all is well */ |
792 | return; /* all is well */ |
612 | |
793 | |
613 | ev_now = ev_time (); |
794 | rt_now = ev_time (); |
|
|
795 | mn_now = get_clock (); |
|
|
796 | now_floor = mn_now; |
|
|
797 | } |
|
|
798 | |
|
|
799 | periodics_reschedule (EV_A); |
|
|
800 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
801 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
614 | } |
802 | } |
615 | |
|
|
616 | periodics_reschedule (diff - odiff); |
|
|
617 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
618 | } |
803 | } |
619 | else |
804 | else |
|
|
805 | #endif |
620 | { |
806 | { |
621 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
807 | rt_now = ev_time (); |
|
|
808 | |
|
|
809 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
622 | { |
810 | { |
623 | periodics_reschedule (ev_now - now); |
811 | periodics_reschedule (EV_A); |
624 | |
812 | |
625 | /* adjust timers. this is easy, as the offset is the same for all */ |
813 | /* adjust timers. this is easy, as the offset is the same for all */ |
626 | for (i = 0; i < timercnt; ++i) |
814 | for (i = 0; i < timercnt; ++i) |
627 | timers [i]->at += diff; |
815 | timers [i]->at += rt_now - mn_now; |
628 | } |
816 | } |
629 | |
817 | |
630 | now = ev_now; |
818 | mn_now = rt_now; |
631 | } |
819 | } |
632 | } |
820 | } |
633 | |
821 | |
634 | int ev_loop_done; |
822 | void |
|
|
823 | ev_ref (EV_P) |
|
|
824 | { |
|
|
825 | ++activecnt; |
|
|
826 | } |
635 | |
827 | |
|
|
828 | void |
|
|
829 | ev_unref (EV_P) |
|
|
830 | { |
|
|
831 | --activecnt; |
|
|
832 | } |
|
|
833 | |
|
|
834 | static int loop_done; |
|
|
835 | |
|
|
836 | void |
636 | void ev_loop (int flags) |
837 | ev_loop (EV_P_ int flags) |
637 | { |
838 | { |
638 | double block; |
839 | double block; |
639 | ev_loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
840 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
640 | |
841 | |
641 | do |
842 | do |
642 | { |
843 | { |
643 | /* queue check watchers (and execute them) */ |
844 | /* queue check watchers (and execute them) */ |
644 | if (preparecnt) |
845 | if (expect_false (preparecnt)) |
645 | { |
846 | { |
646 | queue_events ((W *)prepares, preparecnt, EV_PREPARE); |
847 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
647 | call_pending (); |
848 | call_pending (EV_A); |
648 | } |
849 | } |
649 | |
850 | |
650 | /* update fd-related kernel structures */ |
851 | /* update fd-related kernel structures */ |
651 | fd_reify (); |
852 | fd_reify (EV_A); |
652 | |
853 | |
653 | /* calculate blocking time */ |
854 | /* calculate blocking time */ |
654 | |
855 | |
655 | /* we only need this for !monotonic clockor timers, but as we basically |
856 | /* we only need this for !monotonic clockor timers, but as we basically |
656 | always have timers, we just calculate it always */ |
857 | always have timers, we just calculate it always */ |
|
|
858 | #if EV_USE_MONOTONIC |
|
|
859 | if (expect_true (have_monotonic)) |
|
|
860 | time_update_monotonic (EV_A); |
|
|
861 | else |
|
|
862 | #endif |
|
|
863 | { |
657 | ev_now = ev_time (); |
864 | rt_now = ev_time (); |
|
|
865 | mn_now = rt_now; |
|
|
866 | } |
658 | |
867 | |
659 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
868 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
660 | block = 0.; |
869 | block = 0.; |
661 | else |
870 | else |
662 | { |
871 | { |
663 | block = MAX_BLOCKTIME; |
872 | block = MAX_BLOCKTIME; |
664 | |
873 | |
665 | if (timercnt) |
874 | if (timercnt) |
666 | { |
875 | { |
667 | ev_tstamp to = timers [0]->at - (have_monotonic ? get_clock () : ev_now) + method_fudge; |
876 | ev_tstamp to = timers [0]->at - mn_now + method_fudge; |
668 | if (block > to) block = to; |
877 | if (block > to) block = to; |
669 | } |
878 | } |
670 | |
879 | |
671 | if (periodiccnt) |
880 | if (periodiccnt) |
672 | { |
881 | { |
673 | ev_tstamp to = periodics [0]->at - ev_now + method_fudge; |
882 | ev_tstamp to = periodics [0]->at - rt_now + method_fudge; |
674 | if (block > to) block = to; |
883 | if (block > to) block = to; |
675 | } |
884 | } |
676 | |
885 | |
677 | if (block < 0.) block = 0.; |
886 | if (block < 0.) block = 0.; |
678 | } |
887 | } |
679 | |
888 | |
680 | method_poll (block); |
889 | method_poll (EV_A_ block); |
681 | |
890 | |
682 | /* update ev_now, do magic */ |
891 | /* update rt_now, do magic */ |
683 | time_update (); |
892 | time_update (EV_A); |
684 | |
893 | |
685 | /* queue pending timers and reschedule them */ |
894 | /* queue pending timers and reschedule them */ |
686 | timers_reify (); /* relative timers called last */ |
895 | timers_reify (EV_A); /* relative timers called last */ |
687 | periodics_reify (); /* absolute timers called first */ |
896 | periodics_reify (EV_A); /* absolute timers called first */ |
688 | |
897 | |
689 | /* queue idle watchers unless io or timers are pending */ |
898 | /* queue idle watchers unless io or timers are pending */ |
690 | if (!pendingcnt) |
899 | if (!pendingcnt) |
691 | queue_events ((W *)idles, idlecnt, EV_IDLE); |
900 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
692 | |
901 | |
693 | /* queue check watchers, to be executed first */ |
902 | /* queue check watchers, to be executed first */ |
694 | if (checkcnt) |
903 | if (checkcnt) |
695 | queue_events ((W *)checks, checkcnt, EV_CHECK); |
904 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
696 | |
905 | |
697 | call_pending (); |
906 | call_pending (EV_A); |
698 | } |
907 | } |
699 | while (!ev_loop_done); |
908 | while (activecnt && !loop_done); |
700 | |
909 | |
701 | if (ev_loop_done != 2) |
910 | if (loop_done != 2) |
702 | ev_loop_done = 0; |
911 | loop_done = 0; |
|
|
912 | } |
|
|
913 | |
|
|
914 | void |
|
|
915 | ev_unloop (EV_P_ int how) |
|
|
916 | { |
|
|
917 | loop_done = how; |
703 | } |
918 | } |
704 | |
919 | |
705 | /*****************************************************************************/ |
920 | /*****************************************************************************/ |
706 | |
921 | |
707 | static void |
922 | inline void |
708 | wlist_add (WL *head, WL elem) |
923 | wlist_add (WL *head, WL elem) |
709 | { |
924 | { |
710 | elem->next = *head; |
925 | elem->next = *head; |
711 | *head = elem; |
926 | *head = elem; |
712 | } |
927 | } |
713 | |
928 | |
714 | static void |
929 | inline void |
715 | wlist_del (WL *head, WL elem) |
930 | wlist_del (WL *head, WL elem) |
716 | { |
931 | { |
717 | while (*head) |
932 | while (*head) |
718 | { |
933 | { |
719 | if (*head == elem) |
934 | if (*head == elem) |
… | |
… | |
724 | |
939 | |
725 | head = &(*head)->next; |
940 | head = &(*head)->next; |
726 | } |
941 | } |
727 | } |
942 | } |
728 | |
943 | |
729 | static void |
944 | inline void |
730 | ev_clear (W w) |
945 | ev_clear_pending (EV_P_ W w) |
731 | { |
946 | { |
732 | if (w->pending) |
947 | if (w->pending) |
733 | { |
948 | { |
734 | pendings [w->pending - 1].w = 0; |
949 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
735 | w->pending = 0; |
950 | w->pending = 0; |
736 | } |
951 | } |
737 | } |
952 | } |
738 | |
953 | |
739 | static void |
954 | inline void |
740 | ev_start (W w, int active) |
955 | ev_start (EV_P_ W w, int active) |
741 | { |
956 | { |
|
|
957 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
|
|
958 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
959 | |
742 | w->active = active; |
960 | w->active = active; |
|
|
961 | ev_ref (EV_A); |
743 | } |
962 | } |
744 | |
963 | |
745 | static void |
964 | inline void |
746 | ev_stop (W w) |
965 | ev_stop (EV_P_ W w) |
747 | { |
966 | { |
|
|
967 | ev_unref (EV_A); |
748 | w->active = 0; |
968 | w->active = 0; |
749 | } |
969 | } |
750 | |
970 | |
751 | /*****************************************************************************/ |
971 | /*****************************************************************************/ |
752 | |
972 | |
753 | void |
973 | void |
754 | ev_io_start (struct ev_io *w) |
974 | ev_io_start (EV_P_ struct ev_io *w) |
755 | { |
975 | { |
|
|
976 | int fd = w->fd; |
|
|
977 | |
756 | if (ev_is_active (w)) |
978 | if (ev_is_active (w)) |
757 | return; |
979 | return; |
758 | |
980 | |
759 | int fd = w->fd; |
981 | assert (("ev_io_start called with negative fd", fd >= 0)); |
760 | |
982 | |
761 | ev_start ((W)w, 1); |
983 | ev_start (EV_A_ (W)w, 1); |
762 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
984 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
763 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
985 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
764 | |
986 | |
765 | fd_change (fd); |
987 | fd_change (EV_A_ fd); |
766 | } |
988 | } |
767 | |
989 | |
768 | void |
990 | void |
769 | ev_io_stop (struct ev_io *w) |
991 | ev_io_stop (EV_P_ struct ev_io *w) |
770 | { |
992 | { |
771 | ev_clear ((W)w); |
993 | ev_clear_pending (EV_A_ (W)w); |
772 | if (!ev_is_active (w)) |
994 | if (!ev_is_active (w)) |
773 | return; |
995 | return; |
774 | |
996 | |
775 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
997 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
776 | ev_stop ((W)w); |
998 | ev_stop (EV_A_ (W)w); |
777 | |
999 | |
778 | fd_change (w->fd); |
1000 | fd_change (EV_A_ w->fd); |
779 | } |
1001 | } |
780 | |
1002 | |
781 | void |
1003 | void |
782 | ev_timer_start (struct ev_timer *w) |
1004 | ev_timer_start (EV_P_ struct ev_timer *w) |
783 | { |
1005 | { |
784 | if (ev_is_active (w)) |
1006 | if (ev_is_active (w)) |
785 | return; |
1007 | return; |
786 | |
1008 | |
787 | w->at += now; |
1009 | w->at += mn_now; |
788 | |
1010 | |
789 | assert (("timer repeat value less than zero not allowed", w->repeat >= 0.)); |
1011 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
790 | |
1012 | |
791 | ev_start ((W)w, ++timercnt); |
1013 | ev_start (EV_A_ (W)w, ++timercnt); |
792 | array_needsize (timers, timermax, timercnt, ); |
1014 | array_needsize (timers, timermax, timercnt, ); |
793 | timers [timercnt - 1] = w; |
1015 | timers [timercnt - 1] = w; |
794 | upheap ((WT *)timers, timercnt - 1); |
1016 | upheap ((WT *)timers, timercnt - 1); |
795 | } |
1017 | } |
796 | |
1018 | |
797 | void |
1019 | void |
798 | ev_timer_stop (struct ev_timer *w) |
1020 | ev_timer_stop (EV_P_ struct ev_timer *w) |
799 | { |
1021 | { |
800 | ev_clear ((W)w); |
1022 | ev_clear_pending (EV_A_ (W)w); |
801 | if (!ev_is_active (w)) |
1023 | if (!ev_is_active (w)) |
802 | return; |
1024 | return; |
803 | |
1025 | |
804 | if (w->active < timercnt--) |
1026 | if (w->active < timercnt--) |
805 | { |
1027 | { |
… | |
… | |
807 | downheap ((WT *)timers, timercnt, w->active - 1); |
1029 | downheap ((WT *)timers, timercnt, w->active - 1); |
808 | } |
1030 | } |
809 | |
1031 | |
810 | w->at = w->repeat; |
1032 | w->at = w->repeat; |
811 | |
1033 | |
812 | ev_stop ((W)w); |
1034 | ev_stop (EV_A_ (W)w); |
813 | } |
1035 | } |
814 | |
1036 | |
815 | void |
1037 | void |
816 | ev_timer_again (struct ev_timer *w) |
1038 | ev_timer_again (EV_P_ struct ev_timer *w) |
817 | { |
1039 | { |
818 | if (ev_is_active (w)) |
1040 | if (ev_is_active (w)) |
819 | { |
1041 | { |
820 | if (w->repeat) |
1042 | if (w->repeat) |
821 | { |
1043 | { |
822 | w->at = now + w->repeat; |
1044 | w->at = mn_now + w->repeat; |
823 | downheap ((WT *)timers, timercnt, w->active - 1); |
1045 | downheap ((WT *)timers, timercnt, w->active - 1); |
824 | } |
1046 | } |
825 | else |
1047 | else |
826 | ev_timer_stop (w); |
1048 | ev_timer_stop (EV_A_ w); |
827 | } |
1049 | } |
828 | else if (w->repeat) |
1050 | else if (w->repeat) |
829 | ev_timer_start (w); |
1051 | ev_timer_start (EV_A_ w); |
830 | } |
1052 | } |
831 | |
1053 | |
832 | void |
1054 | void |
833 | ev_periodic_start (struct ev_periodic *w) |
1055 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
834 | { |
1056 | { |
835 | if (ev_is_active (w)) |
1057 | if (ev_is_active (w)) |
836 | return; |
1058 | return; |
837 | |
1059 | |
838 | assert (("periodic interval value less than zero not allowed", w->interval >= 0.)); |
1060 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
839 | |
1061 | |
840 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1062 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
841 | if (w->interval) |
1063 | if (w->interval) |
842 | w->at += ceil ((ev_now - w->at) / w->interval) * w->interval; |
1064 | w->at += ceil ((rt_now - w->at) / w->interval) * w->interval; |
843 | |
1065 | |
844 | ev_start ((W)w, ++periodiccnt); |
1066 | ev_start (EV_A_ (W)w, ++periodiccnt); |
845 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1067 | array_needsize (periodics, periodicmax, periodiccnt, ); |
846 | periodics [periodiccnt - 1] = w; |
1068 | periodics [periodiccnt - 1] = w; |
847 | upheap ((WT *)periodics, periodiccnt - 1); |
1069 | upheap ((WT *)periodics, periodiccnt - 1); |
848 | } |
1070 | } |
849 | |
1071 | |
850 | void |
1072 | void |
851 | ev_periodic_stop (struct ev_periodic *w) |
1073 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
852 | { |
1074 | { |
853 | ev_clear ((W)w); |
1075 | ev_clear_pending (EV_A_ (W)w); |
854 | if (!ev_is_active (w)) |
1076 | if (!ev_is_active (w)) |
855 | return; |
1077 | return; |
856 | |
1078 | |
857 | if (w->active < periodiccnt--) |
1079 | if (w->active < periodiccnt--) |
858 | { |
1080 | { |
859 | periodics [w->active - 1] = periodics [periodiccnt]; |
1081 | periodics [w->active - 1] = periodics [periodiccnt]; |
860 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
1082 | downheap ((WT *)periodics, periodiccnt, w->active - 1); |
861 | } |
1083 | } |
862 | |
1084 | |
863 | ev_stop ((W)w); |
1085 | ev_stop (EV_A_ (W)w); |
864 | } |
1086 | } |
865 | |
1087 | |
|
|
1088 | #ifndef SA_RESTART |
|
|
1089 | # define SA_RESTART 0 |
|
|
1090 | #endif |
|
|
1091 | |
866 | void |
1092 | void |
867 | ev_signal_start (struct ev_signal *w) |
1093 | ev_signal_start (EV_P_ struct ev_signal *w) |
868 | { |
1094 | { |
869 | if (ev_is_active (w)) |
1095 | if (ev_is_active (w)) |
870 | return; |
1096 | return; |
871 | |
1097 | |
|
|
1098 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1099 | |
872 | ev_start ((W)w, 1); |
1100 | ev_start (EV_A_ (W)w, 1); |
873 | array_needsize (signals, signalmax, w->signum, signals_init); |
1101 | array_needsize (signals, signalmax, w->signum, signals_init); |
874 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1102 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
875 | |
1103 | |
876 | if (!w->next) |
1104 | if (!w->next) |
877 | { |
1105 | { |
878 | struct sigaction sa; |
1106 | struct sigaction sa; |
879 | sa.sa_handler = sighandler; |
1107 | sa.sa_handler = sighandler; |
880 | sigfillset (&sa.sa_mask); |
1108 | sigfillset (&sa.sa_mask); |
881 | sa.sa_flags = 0; |
1109 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
882 | sigaction (w->signum, &sa, 0); |
1110 | sigaction (w->signum, &sa, 0); |
883 | } |
1111 | } |
884 | } |
1112 | } |
885 | |
1113 | |
886 | void |
1114 | void |
887 | ev_signal_stop (struct ev_signal *w) |
1115 | ev_signal_stop (EV_P_ struct ev_signal *w) |
888 | { |
1116 | { |
889 | ev_clear ((W)w); |
1117 | ev_clear_pending (EV_A_ (W)w); |
890 | if (!ev_is_active (w)) |
1118 | if (!ev_is_active (w)) |
891 | return; |
1119 | return; |
892 | |
1120 | |
893 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1121 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
894 | ev_stop ((W)w); |
1122 | ev_stop (EV_A_ (W)w); |
895 | |
1123 | |
896 | if (!signals [w->signum - 1].head) |
1124 | if (!signals [w->signum - 1].head) |
897 | signal (w->signum, SIG_DFL); |
1125 | signal (w->signum, SIG_DFL); |
898 | } |
1126 | } |
899 | |
1127 | |
900 | void |
1128 | void |
901 | ev_idle_start (struct ev_idle *w) |
1129 | ev_idle_start (EV_P_ struct ev_idle *w) |
902 | { |
1130 | { |
903 | if (ev_is_active (w)) |
1131 | if (ev_is_active (w)) |
904 | return; |
1132 | return; |
905 | |
1133 | |
906 | ev_start ((W)w, ++idlecnt); |
1134 | ev_start (EV_A_ (W)w, ++idlecnt); |
907 | array_needsize (idles, idlemax, idlecnt, ); |
1135 | array_needsize (idles, idlemax, idlecnt, ); |
908 | idles [idlecnt - 1] = w; |
1136 | idles [idlecnt - 1] = w; |
909 | } |
1137 | } |
910 | |
1138 | |
911 | void |
1139 | void |
912 | ev_idle_stop (struct ev_idle *w) |
1140 | ev_idle_stop (EV_P_ struct ev_idle *w) |
913 | { |
1141 | { |
914 | ev_clear ((W)w); |
1142 | ev_clear_pending (EV_A_ (W)w); |
915 | if (ev_is_active (w)) |
1143 | if (ev_is_active (w)) |
916 | return; |
1144 | return; |
917 | |
1145 | |
918 | idles [w->active - 1] = idles [--idlecnt]; |
1146 | idles [w->active - 1] = idles [--idlecnt]; |
919 | ev_stop ((W)w); |
1147 | ev_stop (EV_A_ (W)w); |
920 | } |
1148 | } |
921 | |
1149 | |
922 | void |
1150 | void |
923 | ev_prepare_start (struct ev_prepare *w) |
1151 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
924 | { |
1152 | { |
925 | if (ev_is_active (w)) |
1153 | if (ev_is_active (w)) |
926 | return; |
1154 | return; |
927 | |
1155 | |
928 | ev_start ((W)w, ++preparecnt); |
1156 | ev_start (EV_A_ (W)w, ++preparecnt); |
929 | array_needsize (prepares, preparemax, preparecnt, ); |
1157 | array_needsize (prepares, preparemax, preparecnt, ); |
930 | prepares [preparecnt - 1] = w; |
1158 | prepares [preparecnt - 1] = w; |
931 | } |
1159 | } |
932 | |
1160 | |
933 | void |
1161 | void |
934 | ev_prepare_stop (struct ev_prepare *w) |
1162 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
935 | { |
1163 | { |
936 | ev_clear ((W)w); |
1164 | ev_clear_pending (EV_A_ (W)w); |
937 | if (ev_is_active (w)) |
1165 | if (ev_is_active (w)) |
938 | return; |
1166 | return; |
939 | |
1167 | |
940 | prepares [w->active - 1] = prepares [--preparecnt]; |
1168 | prepares [w->active - 1] = prepares [--preparecnt]; |
941 | ev_stop ((W)w); |
1169 | ev_stop (EV_A_ (W)w); |
942 | } |
1170 | } |
943 | |
1171 | |
944 | void |
1172 | void |
945 | ev_check_start (struct ev_check *w) |
1173 | ev_check_start (EV_P_ struct ev_check *w) |
946 | { |
1174 | { |
947 | if (ev_is_active (w)) |
1175 | if (ev_is_active (w)) |
948 | return; |
1176 | return; |
949 | |
1177 | |
950 | ev_start ((W)w, ++checkcnt); |
1178 | ev_start (EV_A_ (W)w, ++checkcnt); |
951 | array_needsize (checks, checkmax, checkcnt, ); |
1179 | array_needsize (checks, checkmax, checkcnt, ); |
952 | checks [checkcnt - 1] = w; |
1180 | checks [checkcnt - 1] = w; |
953 | } |
1181 | } |
954 | |
1182 | |
955 | void |
1183 | void |
956 | ev_check_stop (struct ev_check *w) |
1184 | ev_check_stop (EV_P_ struct ev_check *w) |
957 | { |
1185 | { |
958 | ev_clear ((W)w); |
1186 | ev_clear_pending (EV_A_ (W)w); |
959 | if (ev_is_active (w)) |
1187 | if (ev_is_active (w)) |
960 | return; |
1188 | return; |
961 | |
1189 | |
962 | checks [w->active - 1] = checks [--checkcnt]; |
1190 | checks [w->active - 1] = checks [--checkcnt]; |
963 | ev_stop ((W)w); |
1191 | ev_stop (EV_A_ (W)w); |
964 | } |
1192 | } |
965 | |
1193 | |
966 | void |
1194 | void |
967 | ev_child_start (struct ev_child *w) |
1195 | ev_child_start (EV_P_ struct ev_child *w) |
968 | { |
1196 | { |
969 | if (ev_is_active (w)) |
1197 | if (ev_is_active (w)) |
970 | return; |
1198 | return; |
971 | |
1199 | |
972 | ev_start ((W)w, 1); |
1200 | ev_start (EV_A_ (W)w, 1); |
973 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1201 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
974 | } |
1202 | } |
975 | |
1203 | |
976 | void |
1204 | void |
977 | ev_child_stop (struct ev_child *w) |
1205 | ev_child_stop (EV_P_ struct ev_child *w) |
978 | { |
1206 | { |
979 | ev_clear ((W)w); |
1207 | ev_clear_pending (EV_A_ (W)w); |
980 | if (ev_is_active (w)) |
1208 | if (ev_is_active (w)) |
981 | return; |
1209 | return; |
982 | |
1210 | |
983 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1211 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
984 | ev_stop ((W)w); |
1212 | ev_stop (EV_A_ (W)w); |
985 | } |
1213 | } |
986 | |
1214 | |
987 | /*****************************************************************************/ |
1215 | /*****************************************************************************/ |
988 | |
1216 | |
989 | struct ev_once |
1217 | struct ev_once |
… | |
… | |
993 | void (*cb)(int revents, void *arg); |
1221 | void (*cb)(int revents, void *arg); |
994 | void *arg; |
1222 | void *arg; |
995 | }; |
1223 | }; |
996 | |
1224 | |
997 | static void |
1225 | static void |
998 | once_cb (struct ev_once *once, int revents) |
1226 | once_cb (EV_P_ struct ev_once *once, int revents) |
999 | { |
1227 | { |
1000 | void (*cb)(int revents, void *arg) = once->cb; |
1228 | void (*cb)(int revents, void *arg) = once->cb; |
1001 | void *arg = once->arg; |
1229 | void *arg = once->arg; |
1002 | |
1230 | |
1003 | ev_io_stop (&once->io); |
1231 | ev_io_stop (EV_A_ &once->io); |
1004 | ev_timer_stop (&once->to); |
1232 | ev_timer_stop (EV_A_ &once->to); |
1005 | free (once); |
1233 | free (once); |
1006 | |
1234 | |
1007 | cb (revents, arg); |
1235 | cb (revents, arg); |
1008 | } |
1236 | } |
1009 | |
1237 | |
1010 | static void |
1238 | static void |
1011 | once_cb_io (struct ev_io *w, int revents) |
1239 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1012 | { |
1240 | { |
1013 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1241 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1014 | } |
1242 | } |
1015 | |
1243 | |
1016 | static void |
1244 | static void |
1017 | once_cb_to (struct ev_timer *w, int revents) |
1245 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1018 | { |
1246 | { |
1019 | once_cb ((struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1247 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1020 | } |
1248 | } |
1021 | |
1249 | |
1022 | void |
1250 | void |
1023 | ev_once (int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1251 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1024 | { |
1252 | { |
1025 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1253 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1026 | |
1254 | |
1027 | if (!once) |
1255 | if (!once) |
1028 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1256 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
… | |
… | |
1033 | |
1261 | |
1034 | ev_watcher_init (&once->io, once_cb_io); |
1262 | ev_watcher_init (&once->io, once_cb_io); |
1035 | if (fd >= 0) |
1263 | if (fd >= 0) |
1036 | { |
1264 | { |
1037 | ev_io_set (&once->io, fd, events); |
1265 | ev_io_set (&once->io, fd, events); |
1038 | ev_io_start (&once->io); |
1266 | ev_io_start (EV_A_ &once->io); |
1039 | } |
1267 | } |
1040 | |
1268 | |
1041 | ev_watcher_init (&once->to, once_cb_to); |
1269 | ev_watcher_init (&once->to, once_cb_to); |
1042 | if (timeout >= 0.) |
1270 | if (timeout >= 0.) |
1043 | { |
1271 | { |
1044 | ev_timer_set (&once->to, timeout, 0.); |
1272 | ev_timer_set (&once->to, timeout, 0.); |
1045 | ev_timer_start (&once->to); |
1273 | ev_timer_start (EV_A_ &once->to); |
1046 | } |
1274 | } |
1047 | } |
1275 | } |
1048 | } |
1276 | } |
1049 | |
1277 | |
1050 | /*****************************************************************************/ |
1278 | /*****************************************************************************/ |