… | |
… | |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
28 | * (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 |
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 | |
|
|
32 | #ifdef __cplusplus |
|
|
33 | extern "C" { |
|
|
34 | #endif |
|
|
35 | |
31 | #ifndef EV_STANDALONE |
36 | #ifndef EV_STANDALONE |
|
|
37 | # ifdef EV_CONFIG_H |
|
|
38 | # include EV_CONFIG_H |
|
|
39 | # else |
32 | # include "config.h" |
40 | # include "config.h" |
|
|
41 | # endif |
33 | |
42 | |
34 | # if HAVE_CLOCK_GETTIME |
43 | # if HAVE_CLOCK_GETTIME |
|
|
44 | # ifndef EV_USE_MONOTONIC |
35 | # define EV_USE_MONOTONIC 1 |
45 | # define EV_USE_MONOTONIC 1 |
|
|
46 | # endif |
|
|
47 | # ifndef EV_USE_REALTIME |
36 | # define EV_USE_REALTIME 1 |
48 | # define EV_USE_REALTIME 1 |
|
|
49 | # endif |
|
|
50 | # else |
|
|
51 | # ifndef EV_USE_MONOTONIC |
|
|
52 | # define EV_USE_MONOTONIC 0 |
|
|
53 | # endif |
|
|
54 | # ifndef EV_USE_REALTIME |
|
|
55 | # define EV_USE_REALTIME 0 |
|
|
56 | # endif |
37 | # endif |
57 | # endif |
38 | |
58 | |
|
|
59 | # ifndef EV_USE_SELECT |
39 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
40 | # define EV_USE_SELECT 1 |
61 | # define EV_USE_SELECT 1 |
|
|
62 | # else |
|
|
63 | # define EV_USE_SELECT 0 |
|
|
64 | # endif |
41 | # endif |
65 | # endif |
42 | |
66 | |
|
|
67 | # ifndef EV_USE_POLL |
43 | # if HAVE_POLL && HAVE_POLL_H |
68 | # if HAVE_POLL && HAVE_POLL_H |
44 | # define EV_USE_POLL 1 |
69 | # define EV_USE_POLL 1 |
|
|
70 | # else |
|
|
71 | # define EV_USE_POLL 0 |
|
|
72 | # endif |
45 | # endif |
73 | # endif |
46 | |
74 | |
|
|
75 | # ifndef EV_USE_EPOLL |
47 | # if HAVE_EPOLL && HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
48 | # define EV_USE_EPOLL 1 |
77 | # define EV_USE_EPOLL 1 |
|
|
78 | # else |
|
|
79 | # define EV_USE_EPOLL 0 |
|
|
80 | # endif |
49 | # endif |
81 | # endif |
50 | |
82 | |
|
|
83 | # ifndef EV_USE_KQUEUE |
51 | # if HAVE_KQUEUE && HAVE_WORKING_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
52 | # define EV_USE_KQUEUE 1 |
85 | # define EV_USE_KQUEUE 1 |
|
|
86 | # else |
|
|
87 | # define EV_USE_KQUEUE 0 |
|
|
88 | # endif |
|
|
89 | # endif |
|
|
90 | |
|
|
91 | # ifndef EV_USE_PORT |
|
|
92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
|
|
93 | # define EV_USE_PORT 1 |
|
|
94 | # else |
|
|
95 | # define EV_USE_PORT 0 |
|
|
96 | # endif |
53 | # endif |
97 | # endif |
54 | |
98 | |
55 | #endif |
99 | #endif |
56 | |
100 | |
57 | #include <math.h> |
101 | #include <math.h> |
58 | #include <stdlib.h> |
102 | #include <stdlib.h> |
59 | #include <unistd.h> |
|
|
60 | #include <fcntl.h> |
103 | #include <fcntl.h> |
61 | #include <signal.h> |
|
|
62 | #include <stddef.h> |
104 | #include <stddef.h> |
63 | |
105 | |
64 | #include <stdio.h> |
106 | #include <stdio.h> |
65 | |
107 | |
66 | #include <assert.h> |
108 | #include <assert.h> |
67 | #include <errno.h> |
109 | #include <errno.h> |
68 | #include <sys/types.h> |
110 | #include <sys/types.h> |
|
|
111 | #include <time.h> |
|
|
112 | |
|
|
113 | #include <signal.h> |
|
|
114 | |
69 | #ifndef WIN32 |
115 | #ifndef _WIN32 |
|
|
116 | # include <sys/time.h> |
70 | # include <sys/wait.h> |
117 | # include <sys/wait.h> |
|
|
118 | # include <unistd.h> |
|
|
119 | #else |
|
|
120 | # define WIN32_LEAN_AND_MEAN |
|
|
121 | # include <windows.h> |
|
|
122 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
123 | # define EV_SELECT_IS_WINSOCKET 1 |
71 | #endif |
124 | # endif |
72 | #include <sys/time.h> |
125 | #endif |
73 | #include <time.h> |
|
|
74 | |
126 | |
75 | /**/ |
127 | /**/ |
76 | |
128 | |
77 | #ifndef EV_USE_MONOTONIC |
129 | #ifndef EV_USE_MONOTONIC |
78 | # define EV_USE_MONOTONIC 1 |
130 | # define EV_USE_MONOTONIC 0 |
|
|
131 | #endif |
|
|
132 | |
|
|
133 | #ifndef EV_USE_REALTIME |
|
|
134 | # define EV_USE_REALTIME 0 |
79 | #endif |
135 | #endif |
80 | |
136 | |
81 | #ifndef EV_USE_SELECT |
137 | #ifndef EV_USE_SELECT |
82 | # define EV_USE_SELECT 1 |
138 | # define EV_USE_SELECT 1 |
83 | #endif |
139 | #endif |
84 | |
140 | |
85 | #ifndef EV_USE_POLL |
141 | #ifndef EV_USE_POLL |
86 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
142 | # ifdef _WIN32 |
|
|
143 | # define EV_USE_POLL 0 |
|
|
144 | # else |
|
|
145 | # define EV_USE_POLL 1 |
|
|
146 | # endif |
87 | #endif |
147 | #endif |
88 | |
148 | |
89 | #ifndef EV_USE_EPOLL |
149 | #ifndef EV_USE_EPOLL |
90 | # define EV_USE_EPOLL 0 |
150 | # define EV_USE_EPOLL 0 |
91 | #endif |
151 | #endif |
92 | |
152 | |
93 | #ifndef EV_USE_KQUEUE |
153 | #ifndef EV_USE_KQUEUE |
94 | # define EV_USE_KQUEUE 0 |
154 | # define EV_USE_KQUEUE 0 |
95 | #endif |
155 | #endif |
96 | |
156 | |
97 | #ifndef EV_USE_WIN32 |
|
|
98 | # ifdef WIN32 |
|
|
99 | # define EV_USE_WIN32 1 |
|
|
100 | # else |
|
|
101 | # define EV_USE_WIN32 0 |
|
|
102 | # endif |
|
|
103 | #endif |
|
|
104 | |
|
|
105 | #ifndef EV_USE_REALTIME |
157 | #ifndef EV_USE_PORT |
106 | # define EV_USE_REALTIME 1 |
158 | # define EV_USE_PORT 0 |
107 | #endif |
159 | #endif |
108 | |
160 | |
109 | /**/ |
161 | /**/ |
110 | |
162 | |
111 | #ifndef CLOCK_MONOTONIC |
163 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
116 | #ifndef CLOCK_REALTIME |
168 | #ifndef CLOCK_REALTIME |
117 | # undef EV_USE_REALTIME |
169 | # undef EV_USE_REALTIME |
118 | # define EV_USE_REALTIME 0 |
170 | # define EV_USE_REALTIME 0 |
119 | #endif |
171 | #endif |
120 | |
172 | |
|
|
173 | #if EV_SELECT_IS_WINSOCKET |
|
|
174 | # include <winsock.h> |
|
|
175 | #endif |
|
|
176 | |
121 | /**/ |
177 | /**/ |
122 | |
178 | |
123 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
179 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
124 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
180 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
125 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
181 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
126 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
182 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
127 | |
183 | |
|
|
184 | #ifdef EV_H |
|
|
185 | # include EV_H |
|
|
186 | #else |
128 | #include "ev.h" |
187 | # include "ev.h" |
|
|
188 | #endif |
129 | |
189 | |
130 | #if __GNUC__ >= 3 |
190 | #if __GNUC__ >= 3 |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
191 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
192 | # define inline_size static inline /* inline for codesize */ |
|
|
193 | # if EV_MINIMAL |
132 | # define inline inline |
194 | # define noinline __attribute__ ((noinline)) |
|
|
195 | # define inline_speed static noinline |
|
|
196 | # else |
|
|
197 | # define noinline |
|
|
198 | # define inline_speed static inline |
|
|
199 | # endif |
133 | #else |
200 | #else |
134 | # define expect(expr,value) (expr) |
201 | # define expect(expr,value) (expr) |
135 | # define inline static |
202 | # define inline_speed static |
|
|
203 | # define inline_minimal static |
|
|
204 | # define noinline |
136 | #endif |
205 | #endif |
137 | |
206 | |
138 | #define expect_false(expr) expect ((expr) != 0, 0) |
207 | #define expect_false(expr) expect ((expr) != 0, 0) |
139 | #define expect_true(expr) expect ((expr) != 0, 1) |
208 | #define expect_true(expr) expect ((expr) != 0, 1) |
140 | |
209 | |
141 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
210 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
142 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
211 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
143 | |
212 | |
|
|
213 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
214 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
215 | |
144 | typedef struct ev_watcher *W; |
216 | typedef ev_watcher *W; |
145 | typedef struct ev_watcher_list *WL; |
217 | typedef ev_watcher_list *WL; |
146 | typedef struct ev_watcher_time *WT; |
218 | typedef ev_watcher_time *WT; |
147 | |
219 | |
148 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
220 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
149 | |
221 | |
|
|
222 | #ifdef _WIN32 |
|
|
223 | # include "ev_win32.c" |
|
|
224 | #endif |
|
|
225 | |
150 | /*****************************************************************************/ |
226 | /*****************************************************************************/ |
151 | |
227 | |
|
|
228 | static void (*syserr_cb)(const char *msg); |
|
|
229 | |
|
|
230 | void |
|
|
231 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
|
|
232 | { |
|
|
233 | syserr_cb = cb; |
|
|
234 | } |
|
|
235 | |
|
|
236 | static void noinline |
|
|
237 | syserr (const char *msg) |
|
|
238 | { |
|
|
239 | if (!msg) |
|
|
240 | msg = "(libev) system error"; |
|
|
241 | |
|
|
242 | if (syserr_cb) |
|
|
243 | syserr_cb (msg); |
|
|
244 | else |
|
|
245 | { |
|
|
246 | perror (msg); |
|
|
247 | abort (); |
|
|
248 | } |
|
|
249 | } |
|
|
250 | |
|
|
251 | static void *(*alloc)(void *ptr, long size); |
|
|
252 | |
|
|
253 | void |
|
|
254 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
|
|
255 | { |
|
|
256 | alloc = cb; |
|
|
257 | } |
|
|
258 | |
|
|
259 | static void * |
|
|
260 | ev_realloc (void *ptr, long size) |
|
|
261 | { |
|
|
262 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
|
|
263 | |
|
|
264 | if (!ptr && size) |
|
|
265 | { |
|
|
266 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
|
|
267 | abort (); |
|
|
268 | } |
|
|
269 | |
|
|
270 | return ptr; |
|
|
271 | } |
|
|
272 | |
|
|
273 | #define ev_malloc(size) ev_realloc (0, (size)) |
|
|
274 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
|
|
275 | |
|
|
276 | /*****************************************************************************/ |
|
|
277 | |
152 | typedef struct |
278 | typedef struct |
153 | { |
279 | { |
154 | struct ev_watcher_list *head; |
280 | WL head; |
155 | unsigned char events; |
281 | unsigned char events; |
156 | unsigned char reify; |
282 | unsigned char reify; |
|
|
283 | #if EV_SELECT_IS_WINSOCKET |
|
|
284 | SOCKET handle; |
|
|
285 | #endif |
157 | } ANFD; |
286 | } ANFD; |
158 | |
287 | |
159 | typedef struct |
288 | typedef struct |
160 | { |
289 | { |
161 | W w; |
290 | W w; |
162 | int events; |
291 | int events; |
163 | } ANPENDING; |
292 | } ANPENDING; |
164 | |
293 | |
165 | #if EV_MULTIPLICITY |
294 | #if EV_MULTIPLICITY |
166 | |
295 | |
167 | struct ev_loop |
296 | struct ev_loop |
168 | { |
297 | { |
|
|
298 | ev_tstamp ev_rt_now; |
|
|
299 | #define ev_rt_now ((loop)->ev_rt_now) |
169 | # define VAR(name,decl) decl; |
300 | #define VAR(name,decl) decl; |
170 | # include "ev_vars.h" |
301 | #include "ev_vars.h" |
171 | }; |
|
|
172 | # undef VAR |
302 | #undef VAR |
|
|
303 | }; |
173 | # include "ev_wrap.h" |
304 | #include "ev_wrap.h" |
|
|
305 | |
|
|
306 | static struct ev_loop default_loop_struct; |
|
|
307 | struct ev_loop *ev_default_loop_ptr; |
174 | |
308 | |
175 | #else |
309 | #else |
176 | |
310 | |
|
|
311 | ev_tstamp ev_rt_now; |
177 | # define VAR(name,decl) static decl; |
312 | #define VAR(name,decl) static decl; |
178 | # include "ev_vars.h" |
313 | #include "ev_vars.h" |
179 | # undef VAR |
314 | #undef VAR |
|
|
315 | |
|
|
316 | static int ev_default_loop_ptr; |
180 | |
317 | |
181 | #endif |
318 | #endif |
182 | |
319 | |
183 | /*****************************************************************************/ |
320 | /*****************************************************************************/ |
184 | |
321 | |
185 | inline ev_tstamp |
322 | ev_tstamp |
186 | ev_time (void) |
323 | ev_time (void) |
187 | { |
324 | { |
188 | #if EV_USE_REALTIME |
325 | #if EV_USE_REALTIME |
189 | struct timespec ts; |
326 | struct timespec ts; |
190 | clock_gettime (CLOCK_REALTIME, &ts); |
327 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
194 | gettimeofday (&tv, 0); |
331 | gettimeofday (&tv, 0); |
195 | return tv.tv_sec + tv.tv_usec * 1e-6; |
332 | return tv.tv_sec + tv.tv_usec * 1e-6; |
196 | #endif |
333 | #endif |
197 | } |
334 | } |
198 | |
335 | |
199 | inline ev_tstamp |
336 | ev_tstamp inline_size |
200 | get_clock (void) |
337 | get_clock (void) |
201 | { |
338 | { |
202 | #if EV_USE_MONOTONIC |
339 | #if EV_USE_MONOTONIC |
203 | if (expect_true (have_monotonic)) |
340 | if (expect_true (have_monotonic)) |
204 | { |
341 | { |
… | |
… | |
209 | #endif |
346 | #endif |
210 | |
347 | |
211 | return ev_time (); |
348 | return ev_time (); |
212 | } |
349 | } |
213 | |
350 | |
|
|
351 | #if EV_MULTIPLICITY |
214 | ev_tstamp |
352 | ev_tstamp |
215 | ev_now (EV_P) |
353 | ev_now (EV_P) |
216 | { |
354 | { |
217 | return rt_now; |
355 | return ev_rt_now; |
218 | } |
356 | } |
|
|
357 | #endif |
219 | |
358 | |
220 | #define array_roundsize(base,n) ((n) | 4 & ~3) |
359 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
221 | |
360 | |
222 | #define array_needsize(base,cur,cnt,init) \ |
361 | #define array_needsize(type,base,cur,cnt,init) \ |
223 | if (expect_false ((cnt) > cur)) \ |
362 | if (expect_false ((cnt) > cur)) \ |
224 | { \ |
363 | { \ |
225 | int newcnt = cur; \ |
364 | int newcnt = cur; \ |
226 | do \ |
365 | do \ |
227 | { \ |
366 | { \ |
228 | newcnt = array_roundsize (base, newcnt << 1); \ |
367 | newcnt = array_roundsize (type, newcnt << 1); \ |
229 | } \ |
368 | } \ |
230 | while ((cnt) > newcnt); \ |
369 | while ((cnt) > newcnt); \ |
231 | \ |
370 | \ |
232 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
371 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
233 | init (base + cur, newcnt - cur); \ |
372 | init (base + cur, newcnt - cur); \ |
234 | cur = newcnt; \ |
373 | cur = newcnt; \ |
235 | } |
374 | } |
|
|
375 | |
|
|
376 | #define array_slim(type,stem) \ |
|
|
377 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
378 | { \ |
|
|
379 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
380 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
381 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
382 | } |
|
|
383 | |
|
|
384 | #define array_free(stem, idx) \ |
|
|
385 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
236 | |
386 | |
237 | /*****************************************************************************/ |
387 | /*****************************************************************************/ |
238 | |
388 | |
239 | static void |
389 | void noinline |
|
|
390 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
391 | { |
|
|
392 | W w_ = (W)w; |
|
|
393 | |
|
|
394 | if (expect_false (w_->pending)) |
|
|
395 | { |
|
|
396 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
397 | return; |
|
|
398 | } |
|
|
399 | |
|
|
400 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
401 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
402 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
403 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
404 | } |
|
|
405 | |
|
|
406 | void inline_size |
|
|
407 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
408 | { |
|
|
409 | int i; |
|
|
410 | |
|
|
411 | for (i = 0; i < eventcnt; ++i) |
|
|
412 | ev_feed_event (EV_A_ events [i], type); |
|
|
413 | } |
|
|
414 | |
|
|
415 | /*****************************************************************************/ |
|
|
416 | |
|
|
417 | void inline_size |
240 | anfds_init (ANFD *base, int count) |
418 | anfds_init (ANFD *base, int count) |
241 | { |
419 | { |
242 | while (count--) |
420 | while (count--) |
243 | { |
421 | { |
244 | base->head = 0; |
422 | base->head = 0; |
… | |
… | |
247 | |
425 | |
248 | ++base; |
426 | ++base; |
249 | } |
427 | } |
250 | } |
428 | } |
251 | |
429 | |
252 | static void |
430 | void inline_speed |
253 | event (EV_P_ W w, int events) |
|
|
254 | { |
|
|
255 | if (w->pending) |
|
|
256 | { |
|
|
257 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
258 | return; |
|
|
259 | } |
|
|
260 | |
|
|
261 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
262 | array_needsize (pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], ); |
|
|
263 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
|
264 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
|
265 | } |
|
|
266 | |
|
|
267 | static void |
|
|
268 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
269 | { |
|
|
270 | int i; |
|
|
271 | |
|
|
272 | for (i = 0; i < eventcnt; ++i) |
|
|
273 | event (EV_A_ events [i], type); |
|
|
274 | } |
|
|
275 | |
|
|
276 | static void |
|
|
277 | fd_event (EV_P_ int fd, int events) |
431 | fd_event (EV_P_ int fd, int revents) |
278 | { |
432 | { |
279 | ANFD *anfd = anfds + fd; |
433 | ANFD *anfd = anfds + fd; |
280 | struct ev_io *w; |
434 | ev_io *w; |
281 | |
435 | |
282 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
436 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
283 | { |
437 | { |
284 | int ev = w->events & events; |
438 | int ev = w->events & revents; |
285 | |
439 | |
286 | if (ev) |
440 | if (ev) |
287 | event (EV_A_ (W)w, ev); |
441 | ev_feed_event (EV_A_ (W)w, ev); |
288 | } |
442 | } |
289 | } |
443 | } |
290 | |
444 | |
291 | /*****************************************************************************/ |
445 | void |
|
|
446 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
447 | { |
|
|
448 | fd_event (EV_A_ fd, revents); |
|
|
449 | } |
292 | |
450 | |
293 | static void |
451 | void inline_size |
294 | fd_reify (EV_P) |
452 | fd_reify (EV_P) |
295 | { |
453 | { |
296 | int i; |
454 | int i; |
297 | |
455 | |
298 | for (i = 0; i < fdchangecnt; ++i) |
456 | for (i = 0; i < fdchangecnt; ++i) |
299 | { |
457 | { |
300 | int fd = fdchanges [i]; |
458 | int fd = fdchanges [i]; |
301 | ANFD *anfd = anfds + fd; |
459 | ANFD *anfd = anfds + fd; |
302 | struct ev_io *w; |
460 | ev_io *w; |
303 | |
461 | |
304 | int events = 0; |
462 | int events = 0; |
305 | |
463 | |
306 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
464 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
307 | events |= w->events; |
465 | events |= w->events; |
308 | |
466 | |
|
|
467 | #if EV_SELECT_IS_WINSOCKET |
|
|
468 | if (events) |
|
|
469 | { |
|
|
470 | unsigned long argp; |
|
|
471 | anfd->handle = _get_osfhandle (fd); |
|
|
472 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
473 | } |
|
|
474 | #endif |
|
|
475 | |
309 | anfd->reify = 0; |
476 | anfd->reify = 0; |
310 | |
477 | |
311 | method_modify (EV_A_ fd, anfd->events, events); |
478 | backend_modify (EV_A_ fd, anfd->events, events); |
312 | anfd->events = events; |
479 | anfd->events = events; |
313 | } |
480 | } |
314 | |
481 | |
315 | fdchangecnt = 0; |
482 | fdchangecnt = 0; |
316 | } |
483 | } |
317 | |
484 | |
318 | static void |
485 | void inline_size |
319 | fd_change (EV_P_ int fd) |
486 | fd_change (EV_P_ int fd) |
320 | { |
487 | { |
321 | if (anfds [fd].reify || fdchangecnt < 0) |
488 | if (expect_false (anfds [fd].reify)) |
322 | return; |
489 | return; |
323 | |
490 | |
324 | anfds [fd].reify = 1; |
491 | anfds [fd].reify = 1; |
325 | |
492 | |
326 | ++fdchangecnt; |
493 | ++fdchangecnt; |
327 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
494 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
328 | fdchanges [fdchangecnt - 1] = fd; |
495 | fdchanges [fdchangecnt - 1] = fd; |
329 | } |
496 | } |
330 | |
497 | |
331 | static void |
498 | void inline_speed |
332 | fd_kill (EV_P_ int fd) |
499 | fd_kill (EV_P_ int fd) |
333 | { |
500 | { |
334 | struct ev_io *w; |
501 | ev_io *w; |
335 | |
502 | |
336 | while ((w = (struct ev_io *)anfds [fd].head)) |
503 | while ((w = (ev_io *)anfds [fd].head)) |
337 | { |
504 | { |
338 | ev_io_stop (EV_A_ w); |
505 | ev_io_stop (EV_A_ w); |
339 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
506 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
340 | } |
507 | } |
|
|
508 | } |
|
|
509 | |
|
|
510 | int inline_size |
|
|
511 | fd_valid (int fd) |
|
|
512 | { |
|
|
513 | #ifdef _WIN32 |
|
|
514 | return _get_osfhandle (fd) != -1; |
|
|
515 | #else |
|
|
516 | return fcntl (fd, F_GETFD) != -1; |
|
|
517 | #endif |
341 | } |
518 | } |
342 | |
519 | |
343 | /* called on EBADF to verify fds */ |
520 | /* called on EBADF to verify fds */ |
344 | static void |
521 | static void noinline |
345 | fd_ebadf (EV_P) |
522 | fd_ebadf (EV_P) |
346 | { |
523 | { |
347 | int fd; |
524 | int fd; |
348 | |
525 | |
349 | for (fd = 0; fd < anfdmax; ++fd) |
526 | for (fd = 0; fd < anfdmax; ++fd) |
350 | if (anfds [fd].events) |
527 | if (anfds [fd].events) |
351 | if (fcntl (fd, F_GETFD) == -1 && errno == EBADF) |
528 | if (!fd_valid (fd) == -1 && errno == EBADF) |
352 | fd_kill (EV_A_ fd); |
529 | fd_kill (EV_A_ fd); |
353 | } |
530 | } |
354 | |
531 | |
355 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
532 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
356 | static void |
533 | static void noinline |
357 | fd_enomem (EV_P) |
534 | fd_enomem (EV_P) |
358 | { |
535 | { |
359 | int fd; |
536 | int fd; |
360 | |
537 | |
361 | for (fd = anfdmax; fd--; ) |
538 | for (fd = anfdmax; fd--; ) |
362 | if (anfds [fd].events) |
539 | if (anfds [fd].events) |
363 | { |
540 | { |
364 | close (fd); |
|
|
365 | fd_kill (EV_A_ fd); |
541 | fd_kill (EV_A_ fd); |
366 | return; |
542 | return; |
367 | } |
543 | } |
368 | } |
544 | } |
369 | |
545 | |
370 | /* susually called after fork if method needs to re-arm all fds from scratch */ |
546 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
371 | static void |
547 | static void noinline |
372 | fd_rearm_all (EV_P) |
548 | fd_rearm_all (EV_P) |
373 | { |
549 | { |
374 | int fd; |
550 | int fd; |
375 | |
551 | |
376 | /* this should be highly optimised to not do anything but set a flag */ |
552 | /* this should be highly optimised to not do anything but set a flag */ |
… | |
… | |
382 | } |
558 | } |
383 | } |
559 | } |
384 | |
560 | |
385 | /*****************************************************************************/ |
561 | /*****************************************************************************/ |
386 | |
562 | |
387 | static void |
563 | void inline_speed |
388 | upheap (WT *heap, int k) |
564 | upheap (WT *heap, int k) |
389 | { |
565 | { |
390 | WT w = heap [k]; |
566 | WT w = heap [k]; |
391 | |
567 | |
392 | while (k && heap [k >> 1]->at > w->at) |
568 | while (k && heap [k >> 1]->at > w->at) |
… | |
… | |
399 | heap [k] = w; |
575 | heap [k] = w; |
400 | ((W)heap [k])->active = k + 1; |
576 | ((W)heap [k])->active = k + 1; |
401 | |
577 | |
402 | } |
578 | } |
403 | |
579 | |
404 | static void |
580 | void inline_speed |
405 | downheap (WT *heap, int N, int k) |
581 | downheap (WT *heap, int N, int k) |
406 | { |
582 | { |
407 | WT w = heap [k]; |
583 | WT w = heap [k]; |
408 | |
584 | |
409 | while (k < (N >> 1)) |
585 | while (k < (N >> 1)) |
… | |
… | |
423 | |
599 | |
424 | heap [k] = w; |
600 | heap [k] = w; |
425 | ((W)heap [k])->active = k + 1; |
601 | ((W)heap [k])->active = k + 1; |
426 | } |
602 | } |
427 | |
603 | |
|
|
604 | void inline_size |
|
|
605 | adjustheap (WT *heap, int N, int k) |
|
|
606 | { |
|
|
607 | upheap (heap, k); |
|
|
608 | downheap (heap, N, k); |
|
|
609 | } |
|
|
610 | |
428 | /*****************************************************************************/ |
611 | /*****************************************************************************/ |
429 | |
612 | |
430 | typedef struct |
613 | typedef struct |
431 | { |
614 | { |
432 | struct ev_watcher_list *head; |
615 | WL head; |
433 | sig_atomic_t volatile gotsig; |
616 | sig_atomic_t volatile gotsig; |
434 | } ANSIG; |
617 | } ANSIG; |
435 | |
618 | |
436 | static ANSIG *signals; |
619 | static ANSIG *signals; |
437 | static int signalmax; |
620 | static int signalmax; |
438 | |
621 | |
439 | static int sigpipe [2]; |
622 | static int sigpipe [2]; |
440 | static sig_atomic_t volatile gotsig; |
623 | static sig_atomic_t volatile gotsig; |
441 | static struct ev_io sigev; |
624 | static ev_io sigev; |
442 | |
625 | |
443 | static void |
626 | void inline_size |
444 | signals_init (ANSIG *base, int count) |
627 | signals_init (ANSIG *base, int count) |
445 | { |
628 | { |
446 | while (count--) |
629 | while (count--) |
447 | { |
630 | { |
448 | base->head = 0; |
631 | base->head = 0; |
… | |
… | |
453 | } |
636 | } |
454 | |
637 | |
455 | static void |
638 | static void |
456 | sighandler (int signum) |
639 | sighandler (int signum) |
457 | { |
640 | { |
|
|
641 | #if _WIN32 |
|
|
642 | signal (signum, sighandler); |
|
|
643 | #endif |
|
|
644 | |
458 | signals [signum - 1].gotsig = 1; |
645 | signals [signum - 1].gotsig = 1; |
459 | |
646 | |
460 | if (!gotsig) |
647 | if (!gotsig) |
461 | { |
648 | { |
462 | int old_errno = errno; |
649 | int old_errno = errno; |
… | |
… | |
464 | write (sigpipe [1], &signum, 1); |
651 | write (sigpipe [1], &signum, 1); |
465 | errno = old_errno; |
652 | errno = old_errno; |
466 | } |
653 | } |
467 | } |
654 | } |
468 | |
655 | |
|
|
656 | void noinline |
|
|
657 | ev_feed_signal_event (EV_P_ int signum) |
|
|
658 | { |
|
|
659 | WL w; |
|
|
660 | |
|
|
661 | #if EV_MULTIPLICITY |
|
|
662 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
663 | #endif |
|
|
664 | |
|
|
665 | --signum; |
|
|
666 | |
|
|
667 | if (signum < 0 || signum >= signalmax) |
|
|
668 | return; |
|
|
669 | |
|
|
670 | signals [signum].gotsig = 0; |
|
|
671 | |
|
|
672 | for (w = signals [signum].head; w; w = w->next) |
|
|
673 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
674 | } |
|
|
675 | |
469 | static void |
676 | static void |
470 | sigcb (EV_P_ struct ev_io *iow, int revents) |
677 | sigcb (EV_P_ ev_io *iow, int revents) |
471 | { |
678 | { |
472 | struct ev_watcher_list *w; |
|
|
473 | int signum; |
679 | int signum; |
474 | |
680 | |
475 | read (sigpipe [0], &revents, 1); |
681 | read (sigpipe [0], &revents, 1); |
476 | gotsig = 0; |
682 | gotsig = 0; |
477 | |
683 | |
478 | for (signum = signalmax; signum--; ) |
684 | for (signum = signalmax; signum--; ) |
479 | if (signals [signum].gotsig) |
685 | if (signals [signum].gotsig) |
480 | { |
686 | ev_feed_signal_event (EV_A_ signum + 1); |
481 | signals [signum].gotsig = 0; |
|
|
482 | |
|
|
483 | for (w = signals [signum].head; w; w = w->next) |
|
|
484 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
485 | } |
|
|
486 | } |
687 | } |
487 | |
688 | |
488 | static void |
689 | void inline_size |
|
|
690 | fd_intern (int fd) |
|
|
691 | { |
|
|
692 | #ifdef _WIN32 |
|
|
693 | int arg = 1; |
|
|
694 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
695 | #else |
|
|
696 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
697 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
698 | #endif |
|
|
699 | } |
|
|
700 | |
|
|
701 | static void noinline |
489 | siginit (EV_P) |
702 | siginit (EV_P) |
490 | { |
703 | { |
491 | #ifndef WIN32 |
704 | fd_intern (sigpipe [0]); |
492 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
705 | fd_intern (sigpipe [1]); |
493 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
494 | |
|
|
495 | /* rather than sort out wether we really need nb, set it */ |
|
|
496 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
497 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
498 | #endif |
|
|
499 | |
706 | |
500 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
707 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
501 | ev_io_start (EV_A_ &sigev); |
708 | ev_io_start (EV_A_ &sigev); |
502 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
709 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
503 | } |
710 | } |
504 | |
711 | |
505 | /*****************************************************************************/ |
712 | /*****************************************************************************/ |
506 | |
713 | |
|
|
714 | static ev_child *childs [PID_HASHSIZE]; |
|
|
715 | |
507 | #ifndef WIN32 |
716 | #ifndef _WIN32 |
508 | |
717 | |
509 | static struct ev_child *childs [PID_HASHSIZE]; |
|
|
510 | static struct ev_signal childev; |
718 | static ev_signal childev; |
511 | |
719 | |
512 | #ifndef WCONTINUED |
720 | #ifndef WCONTINUED |
513 | # define WCONTINUED 0 |
721 | # define WCONTINUED 0 |
514 | #endif |
722 | #endif |
515 | |
723 | |
516 | static void |
724 | void inline_speed |
517 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
725 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
518 | { |
726 | { |
519 | struct ev_child *w; |
727 | ev_child *w; |
520 | |
728 | |
521 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
729 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
522 | if (w->pid == pid || !w->pid) |
730 | if (w->pid == pid || !w->pid) |
523 | { |
731 | { |
524 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
732 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
525 | w->rpid = pid; |
733 | w->rpid = pid; |
526 | w->rstatus = status; |
734 | w->rstatus = status; |
527 | event (EV_A_ (W)w, EV_CHILD); |
735 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
528 | } |
736 | } |
529 | } |
737 | } |
530 | |
738 | |
531 | static void |
739 | static void |
532 | childcb (EV_P_ struct ev_signal *sw, int revents) |
740 | childcb (EV_P_ ev_signal *sw, int revents) |
533 | { |
741 | { |
534 | int pid, status; |
742 | int pid, status; |
535 | |
743 | |
536 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
744 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
537 | { |
745 | { |
538 | /* make sure we are called again until all childs have been reaped */ |
746 | /* make sure we are called again until all childs have been reaped */ |
|
|
747 | /* we need to do it this way so that the callback gets called before we continue */ |
539 | event (EV_A_ (W)sw, EV_SIGNAL); |
748 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
540 | |
749 | |
541 | child_reap (EV_A_ sw, pid, pid, status); |
750 | child_reap (EV_A_ sw, pid, pid, status); |
542 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
751 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
543 | } |
752 | } |
544 | } |
753 | } |
545 | |
754 | |
546 | #endif |
755 | #endif |
547 | |
756 | |
548 | /*****************************************************************************/ |
757 | /*****************************************************************************/ |
549 | |
758 | |
|
|
759 | #if EV_USE_PORT |
|
|
760 | # include "ev_port.c" |
|
|
761 | #endif |
550 | #if EV_USE_KQUEUE |
762 | #if EV_USE_KQUEUE |
551 | # include "ev_kqueue.c" |
763 | # include "ev_kqueue.c" |
552 | #endif |
764 | #endif |
553 | #if EV_USE_EPOLL |
765 | #if EV_USE_EPOLL |
554 | # include "ev_epoll.c" |
766 | # include "ev_epoll.c" |
… | |
… | |
571 | { |
783 | { |
572 | return EV_VERSION_MINOR; |
784 | return EV_VERSION_MINOR; |
573 | } |
785 | } |
574 | |
786 | |
575 | /* return true if we are running with elevated privileges and should ignore env variables */ |
787 | /* return true if we are running with elevated privileges and should ignore env variables */ |
576 | static int |
788 | int inline_size |
577 | enable_secure (void) |
789 | enable_secure (void) |
578 | { |
790 | { |
579 | #ifdef WIN32 |
791 | #ifdef _WIN32 |
580 | return 0; |
792 | return 0; |
581 | #else |
793 | #else |
582 | return getuid () != geteuid () |
794 | return getuid () != geteuid () |
583 | || getgid () != getegid (); |
795 | || getgid () != getegid (); |
584 | #endif |
796 | #endif |
585 | } |
797 | } |
586 | |
798 | |
587 | int |
799 | unsigned int |
588 | ev_method (EV_P) |
800 | ev_supported_backends (void) |
589 | { |
801 | { |
590 | return method; |
802 | unsigned int flags = 0; |
|
|
803 | |
|
|
804 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
805 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
806 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
807 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
808 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
809 | |
|
|
810 | return flags; |
|
|
811 | } |
|
|
812 | |
|
|
813 | unsigned int |
|
|
814 | ev_recommended_backends (void) |
|
|
815 | { |
|
|
816 | unsigned int flags = ev_supported_backends (); |
|
|
817 | |
|
|
818 | #ifndef __NetBSD__ |
|
|
819 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
820 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
821 | flags &= ~EVBACKEND_KQUEUE; |
|
|
822 | #endif |
|
|
823 | #ifdef __APPLE__ |
|
|
824 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
825 | flags &= ~EVBACKEND_POLL; |
|
|
826 | #endif |
|
|
827 | |
|
|
828 | return flags; |
|
|
829 | } |
|
|
830 | |
|
|
831 | unsigned int |
|
|
832 | ev_embeddable_backends (void) |
|
|
833 | { |
|
|
834 | return EVBACKEND_EPOLL |
|
|
835 | | EVBACKEND_KQUEUE |
|
|
836 | | EVBACKEND_PORT; |
|
|
837 | } |
|
|
838 | |
|
|
839 | unsigned int |
|
|
840 | ev_backend (EV_P) |
|
|
841 | { |
|
|
842 | return backend; |
591 | } |
843 | } |
592 | |
844 | |
593 | static void |
845 | static void |
594 | loop_init (EV_P_ int methods) |
846 | loop_init (EV_P_ unsigned int flags) |
595 | { |
847 | { |
596 | if (!method) |
848 | if (!backend) |
597 | { |
849 | { |
598 | #if EV_USE_MONOTONIC |
850 | #if EV_USE_MONOTONIC |
599 | { |
851 | { |
600 | struct timespec ts; |
852 | struct timespec ts; |
601 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
853 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
602 | have_monotonic = 1; |
854 | have_monotonic = 1; |
603 | } |
855 | } |
604 | #endif |
856 | #endif |
605 | |
857 | |
606 | rt_now = ev_time (); |
858 | ev_rt_now = ev_time (); |
607 | mn_now = get_clock (); |
859 | mn_now = get_clock (); |
608 | now_floor = mn_now; |
860 | now_floor = mn_now; |
609 | rtmn_diff = rt_now - mn_now; |
861 | rtmn_diff = ev_rt_now - mn_now; |
610 | |
862 | |
611 | if (methods == EVMETHOD_AUTO) |
863 | if (!(flags & EVFLAG_NOENV) |
612 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
864 | && !enable_secure () |
|
|
865 | && getenv ("LIBEV_FLAGS")) |
613 | methods = atoi (getenv ("LIBEV_METHODS")); |
866 | flags = atoi (getenv ("LIBEV_FLAGS")); |
614 | else |
|
|
615 | methods = EVMETHOD_ANY; |
|
|
616 | |
867 | |
617 | method = 0; |
868 | if (!(flags & 0x0000ffffUL)) |
618 | #if EV_USE_WIN32 |
869 | flags |= ev_recommended_backends (); |
619 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
870 | |
|
|
871 | backend = 0; |
|
|
872 | #if EV_USE_PORT |
|
|
873 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
620 | #endif |
874 | #endif |
621 | #if EV_USE_KQUEUE |
875 | #if EV_USE_KQUEUE |
622 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
876 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
623 | #endif |
877 | #endif |
624 | #if EV_USE_EPOLL |
878 | #if EV_USE_EPOLL |
625 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
879 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
626 | #endif |
880 | #endif |
627 | #if EV_USE_POLL |
881 | #if EV_USE_POLL |
628 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
882 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
629 | #endif |
883 | #endif |
630 | #if EV_USE_SELECT |
884 | #if EV_USE_SELECT |
631 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
885 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
632 | #endif |
886 | #endif |
633 | } |
|
|
634 | } |
|
|
635 | |
887 | |
636 | void |
888 | ev_init (&sigev, sigcb); |
|
|
889 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
890 | } |
|
|
891 | } |
|
|
892 | |
|
|
893 | static void |
637 | loop_destroy (EV_P) |
894 | loop_destroy (EV_P) |
638 | { |
895 | { |
639 | #if EV_USE_WIN32 |
896 | int i; |
640 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
897 | |
|
|
898 | #if EV_USE_PORT |
|
|
899 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
641 | #endif |
900 | #endif |
642 | #if EV_USE_KQUEUE |
901 | #if EV_USE_KQUEUE |
643 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
902 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
644 | #endif |
903 | #endif |
645 | #if EV_USE_EPOLL |
904 | #if EV_USE_EPOLL |
646 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
905 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
647 | #endif |
906 | #endif |
648 | #if EV_USE_POLL |
907 | #if EV_USE_POLL |
649 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
908 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
650 | #endif |
909 | #endif |
651 | #if EV_USE_SELECT |
910 | #if EV_USE_SELECT |
652 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
911 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
653 | #endif |
912 | #endif |
654 | |
913 | |
655 | method = 0; |
914 | for (i = NUMPRI; i--; ) |
656 | /*TODO*/ |
915 | array_free (pending, [i]); |
657 | } |
|
|
658 | |
916 | |
659 | void |
917 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
918 | array_free (fdchange, EMPTY0); |
|
|
919 | array_free (timer, EMPTY0); |
|
|
920 | #if EV_PERIODIC_ENABLE |
|
|
921 | array_free (periodic, EMPTY0); |
|
|
922 | #endif |
|
|
923 | array_free (idle, EMPTY0); |
|
|
924 | array_free (prepare, EMPTY0); |
|
|
925 | array_free (check, EMPTY0); |
|
|
926 | |
|
|
927 | backend = 0; |
|
|
928 | } |
|
|
929 | |
|
|
930 | static void |
660 | loop_fork (EV_P) |
931 | loop_fork (EV_P) |
661 | { |
932 | { |
662 | /*TODO*/ |
933 | #if EV_USE_PORT |
|
|
934 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
935 | #endif |
|
|
936 | #if EV_USE_KQUEUE |
|
|
937 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
938 | #endif |
663 | #if EV_USE_EPOLL |
939 | #if EV_USE_EPOLL |
664 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
940 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
665 | #endif |
941 | #endif |
666 | #if EV_USE_KQUEUE |
942 | |
667 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
943 | if (ev_is_active (&sigev)) |
668 | #endif |
944 | { |
|
|
945 | /* default loop */ |
|
|
946 | |
|
|
947 | ev_ref (EV_A); |
|
|
948 | ev_io_stop (EV_A_ &sigev); |
|
|
949 | close (sigpipe [0]); |
|
|
950 | close (sigpipe [1]); |
|
|
951 | |
|
|
952 | while (pipe (sigpipe)) |
|
|
953 | syserr ("(libev) error creating pipe"); |
|
|
954 | |
|
|
955 | siginit (EV_A); |
|
|
956 | } |
|
|
957 | |
|
|
958 | postfork = 0; |
669 | } |
959 | } |
670 | |
960 | |
671 | #if EV_MULTIPLICITY |
961 | #if EV_MULTIPLICITY |
672 | struct ev_loop * |
962 | struct ev_loop * |
673 | ev_loop_new (int methods) |
963 | ev_loop_new (unsigned int flags) |
674 | { |
964 | { |
675 | struct ev_loop *loop = (struct ev_loop *)calloc (1, sizeof (struct ev_loop)); |
965 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
676 | |
966 | |
|
|
967 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
968 | |
677 | loop_init (EV_A_ methods); |
969 | loop_init (EV_A_ flags); |
678 | |
970 | |
679 | if (ev_method (EV_A)) |
971 | if (ev_backend (EV_A)) |
680 | return loop; |
972 | return loop; |
681 | |
973 | |
682 | return 0; |
974 | return 0; |
683 | } |
975 | } |
684 | |
976 | |
685 | void |
977 | void |
686 | ev_loop_destroy (EV_P) |
978 | ev_loop_destroy (EV_P) |
687 | { |
979 | { |
688 | loop_destroy (EV_A); |
980 | loop_destroy (EV_A); |
689 | free (loop); |
981 | ev_free (loop); |
690 | } |
982 | } |
691 | |
983 | |
692 | void |
984 | void |
693 | ev_loop_fork (EV_P) |
985 | ev_loop_fork (EV_P) |
694 | { |
986 | { |
695 | loop_fork (EV_A); |
987 | postfork = 1; |
696 | } |
988 | } |
697 | |
989 | |
698 | #endif |
990 | #endif |
699 | |
991 | |
700 | #if EV_MULTIPLICITY |
992 | #if EV_MULTIPLICITY |
701 | struct ev_loop default_loop_struct; |
|
|
702 | static struct ev_loop *default_loop; |
|
|
703 | |
|
|
704 | struct ev_loop * |
993 | struct ev_loop * |
|
|
994 | ev_default_loop_init (unsigned int flags) |
705 | #else |
995 | #else |
706 | static int default_loop; |
|
|
707 | |
|
|
708 | int |
996 | int |
|
|
997 | ev_default_loop (unsigned int flags) |
709 | #endif |
998 | #endif |
710 | ev_default_loop (int methods) |
|
|
711 | { |
999 | { |
712 | if (sigpipe [0] == sigpipe [1]) |
1000 | if (sigpipe [0] == sigpipe [1]) |
713 | if (pipe (sigpipe)) |
1001 | if (pipe (sigpipe)) |
714 | return 0; |
1002 | return 0; |
715 | |
1003 | |
716 | if (!default_loop) |
1004 | if (!ev_default_loop_ptr) |
717 | { |
1005 | { |
718 | #if EV_MULTIPLICITY |
1006 | #if EV_MULTIPLICITY |
719 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1007 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
720 | #else |
1008 | #else |
721 | default_loop = 1; |
1009 | ev_default_loop_ptr = 1; |
722 | #endif |
1010 | #endif |
723 | |
1011 | |
724 | loop_init (EV_A_ methods); |
1012 | loop_init (EV_A_ flags); |
725 | |
1013 | |
726 | if (ev_method (EV_A)) |
1014 | if (ev_backend (EV_A)) |
727 | { |
1015 | { |
728 | ev_watcher_init (&sigev, sigcb); |
|
|
729 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
730 | siginit (EV_A); |
1016 | siginit (EV_A); |
731 | |
1017 | |
732 | #ifndef WIN32 |
1018 | #ifndef _WIN32 |
733 | ev_signal_init (&childev, childcb, SIGCHLD); |
1019 | ev_signal_init (&childev, childcb, SIGCHLD); |
734 | ev_set_priority (&childev, EV_MAXPRI); |
1020 | ev_set_priority (&childev, EV_MAXPRI); |
735 | ev_signal_start (EV_A_ &childev); |
1021 | ev_signal_start (EV_A_ &childev); |
736 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1022 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
737 | #endif |
1023 | #endif |
738 | } |
1024 | } |
739 | else |
1025 | else |
740 | default_loop = 0; |
1026 | ev_default_loop_ptr = 0; |
741 | } |
1027 | } |
742 | |
1028 | |
743 | return default_loop; |
1029 | return ev_default_loop_ptr; |
744 | } |
1030 | } |
745 | |
1031 | |
746 | void |
1032 | void |
747 | ev_default_destroy (void) |
1033 | ev_default_destroy (void) |
748 | { |
1034 | { |
749 | #if EV_MULTIPLICITY |
1035 | #if EV_MULTIPLICITY |
750 | struct ev_loop *loop = default_loop; |
1036 | struct ev_loop *loop = ev_default_loop_ptr; |
751 | #endif |
1037 | #endif |
752 | |
1038 | |
|
|
1039 | #ifndef _WIN32 |
753 | ev_ref (EV_A); /* child watcher */ |
1040 | ev_ref (EV_A); /* child watcher */ |
754 | ev_signal_stop (EV_A_ &childev); |
1041 | ev_signal_stop (EV_A_ &childev); |
|
|
1042 | #endif |
755 | |
1043 | |
756 | ev_ref (EV_A); /* signal watcher */ |
1044 | ev_ref (EV_A); /* signal watcher */ |
757 | ev_io_stop (EV_A_ &sigev); |
1045 | ev_io_stop (EV_A_ &sigev); |
758 | |
1046 | |
759 | close (sigpipe [0]); sigpipe [0] = 0; |
1047 | close (sigpipe [0]); sigpipe [0] = 0; |
… | |
… | |
764 | |
1052 | |
765 | void |
1053 | void |
766 | ev_default_fork (void) |
1054 | ev_default_fork (void) |
767 | { |
1055 | { |
768 | #if EV_MULTIPLICITY |
1056 | #if EV_MULTIPLICITY |
769 | struct ev_loop *loop = default_loop; |
1057 | struct ev_loop *loop = ev_default_loop_ptr; |
770 | #endif |
1058 | #endif |
771 | |
1059 | |
772 | loop_fork (EV_A); |
1060 | if (backend) |
773 | |
1061 | postfork = 1; |
774 | ev_io_stop (EV_A_ &sigev); |
|
|
775 | close (sigpipe [0]); |
|
|
776 | close (sigpipe [1]); |
|
|
777 | pipe (sigpipe); |
|
|
778 | |
|
|
779 | ev_ref (EV_A); /* signal watcher */ |
|
|
780 | siginit (EV_A); |
|
|
781 | } |
1062 | } |
782 | |
1063 | |
783 | /*****************************************************************************/ |
1064 | /*****************************************************************************/ |
784 | |
1065 | |
785 | static void |
1066 | int inline_size |
|
|
1067 | any_pending (EV_P) |
|
|
1068 | { |
|
|
1069 | int pri; |
|
|
1070 | |
|
|
1071 | for (pri = NUMPRI; pri--; ) |
|
|
1072 | if (pendingcnt [pri]) |
|
|
1073 | return 1; |
|
|
1074 | |
|
|
1075 | return 0; |
|
|
1076 | } |
|
|
1077 | |
|
|
1078 | void inline_speed |
786 | call_pending (EV_P) |
1079 | call_pending (EV_P) |
787 | { |
1080 | { |
788 | int pri; |
1081 | int pri; |
789 | |
1082 | |
790 | for (pri = NUMPRI; pri--; ) |
1083 | for (pri = NUMPRI; pri--; ) |
791 | while (pendingcnt [pri]) |
1084 | while (pendingcnt [pri]) |
792 | { |
1085 | { |
793 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1086 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
794 | |
1087 | |
795 | if (p->w) |
1088 | if (expect_true (p->w)) |
796 | { |
1089 | { |
|
|
1090 | assert (("non-pending watcher on pending list", p->w->pending)); |
|
|
1091 | |
797 | p->w->pending = 0; |
1092 | p->w->pending = 0; |
798 | |
1093 | EV_CB_INVOKE (p->w, p->events); |
799 | (*(void (**)(EV_P_ W, int))&p->w->cb) (EV_A_ p->w, p->events); |
|
|
800 | } |
1094 | } |
801 | } |
1095 | } |
802 | } |
1096 | } |
803 | |
1097 | |
804 | static void |
1098 | void inline_size |
805 | timers_reify (EV_P) |
1099 | timers_reify (EV_P) |
806 | { |
1100 | { |
807 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1101 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
808 | { |
1102 | { |
809 | struct ev_timer *w = timers [0]; |
1103 | ev_timer *w = timers [0]; |
810 | |
1104 | |
811 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1105 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
812 | |
1106 | |
813 | /* first reschedule or stop timer */ |
1107 | /* first reschedule or stop timer */ |
814 | if (w->repeat) |
1108 | if (w->repeat) |
815 | { |
1109 | { |
816 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1110 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1111 | |
817 | ((WT)w)->at = mn_now + w->repeat; |
1112 | ((WT)w)->at += w->repeat; |
|
|
1113 | if (((WT)w)->at < mn_now) |
|
|
1114 | ((WT)w)->at = mn_now; |
|
|
1115 | |
818 | downheap ((WT *)timers, timercnt, 0); |
1116 | downheap ((WT *)timers, timercnt, 0); |
819 | } |
1117 | } |
820 | else |
1118 | else |
821 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1119 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
822 | |
1120 | |
823 | event (EV_A_ (W)w, EV_TIMEOUT); |
1121 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
824 | } |
1122 | } |
825 | } |
1123 | } |
826 | |
1124 | |
827 | static void |
1125 | #if EV_PERIODIC_ENABLE |
|
|
1126 | void inline_size |
828 | periodics_reify (EV_P) |
1127 | periodics_reify (EV_P) |
829 | { |
1128 | { |
830 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1129 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
831 | { |
1130 | { |
832 | struct ev_periodic *w = periodics [0]; |
1131 | ev_periodic *w = periodics [0]; |
833 | |
1132 | |
834 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1133 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
835 | |
1134 | |
836 | /* first reschedule or stop timer */ |
1135 | /* first reschedule or stop timer */ |
837 | if (w->interval) |
1136 | if (w->reschedule_cb) |
838 | { |
1137 | { |
|
|
1138 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
|
|
1139 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1140 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1141 | } |
|
|
1142 | else if (w->interval) |
|
|
1143 | { |
839 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1144 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
840 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1145 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
841 | downheap ((WT *)periodics, periodiccnt, 0); |
1146 | downheap ((WT *)periodics, periodiccnt, 0); |
842 | } |
1147 | } |
843 | else |
1148 | else |
844 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1149 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
845 | |
1150 | |
846 | event (EV_A_ (W)w, EV_PERIODIC); |
1151 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
847 | } |
1152 | } |
848 | } |
1153 | } |
849 | |
1154 | |
850 | static void |
1155 | static void noinline |
851 | periodics_reschedule (EV_P) |
1156 | periodics_reschedule (EV_P) |
852 | { |
1157 | { |
853 | int i; |
1158 | int i; |
854 | |
1159 | |
855 | /* adjust periodics after time jump */ |
1160 | /* adjust periodics after time jump */ |
856 | for (i = 0; i < periodiccnt; ++i) |
1161 | for (i = 0; i < periodiccnt; ++i) |
857 | { |
1162 | { |
858 | struct ev_periodic *w = periodics [i]; |
1163 | ev_periodic *w = periodics [i]; |
859 | |
1164 | |
|
|
1165 | if (w->reschedule_cb) |
|
|
1166 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
860 | if (w->interval) |
1167 | else if (w->interval) |
861 | { |
|
|
862 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1168 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
863 | |
|
|
864 | if (fabs (diff) >= 1e-4) |
|
|
865 | { |
|
|
866 | ev_periodic_stop (EV_A_ w); |
|
|
867 | ev_periodic_start (EV_A_ w); |
|
|
868 | |
|
|
869 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
870 | } |
|
|
871 | } |
|
|
872 | } |
1169 | } |
873 | } |
|
|
874 | |
1170 | |
875 | inline int |
1171 | /* now rebuild the heap */ |
|
|
1172 | for (i = periodiccnt >> 1; i--; ) |
|
|
1173 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1174 | } |
|
|
1175 | #endif |
|
|
1176 | |
|
|
1177 | int inline_size |
876 | time_update_monotonic (EV_P) |
1178 | time_update_monotonic (EV_P) |
877 | { |
1179 | { |
878 | mn_now = get_clock (); |
1180 | mn_now = get_clock (); |
879 | |
1181 | |
880 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1182 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
881 | { |
1183 | { |
882 | rt_now = rtmn_diff + mn_now; |
1184 | ev_rt_now = rtmn_diff + mn_now; |
883 | return 0; |
1185 | return 0; |
884 | } |
1186 | } |
885 | else |
1187 | else |
886 | { |
1188 | { |
887 | now_floor = mn_now; |
1189 | now_floor = mn_now; |
888 | rt_now = ev_time (); |
1190 | ev_rt_now = ev_time (); |
889 | return 1; |
1191 | return 1; |
890 | } |
1192 | } |
891 | } |
1193 | } |
892 | |
1194 | |
893 | static void |
1195 | void inline_size |
894 | time_update (EV_P) |
1196 | time_update (EV_P) |
895 | { |
1197 | { |
896 | int i; |
1198 | int i; |
897 | |
1199 | |
898 | #if EV_USE_MONOTONIC |
1200 | #if EV_USE_MONOTONIC |
… | |
… | |
900 | { |
1202 | { |
901 | if (time_update_monotonic (EV_A)) |
1203 | if (time_update_monotonic (EV_A)) |
902 | { |
1204 | { |
903 | ev_tstamp odiff = rtmn_diff; |
1205 | ev_tstamp odiff = rtmn_diff; |
904 | |
1206 | |
905 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1207 | /* loop a few times, before making important decisions. |
|
|
1208 | * on the choice of "4": one iteration isn't enough, |
|
|
1209 | * in case we get preempted during the calls to |
|
|
1210 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1211 | * to succeed in that case, though. and looping a few more times |
|
|
1212 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1213 | * in the unlikely event of getting preempted here. |
|
|
1214 | */ |
|
|
1215 | for (i = 4; --i; ) |
906 | { |
1216 | { |
907 | rtmn_diff = rt_now - mn_now; |
1217 | rtmn_diff = ev_rt_now - mn_now; |
908 | |
1218 | |
909 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1219 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
910 | return; /* all is well */ |
1220 | return; /* all is well */ |
911 | |
1221 | |
912 | rt_now = ev_time (); |
1222 | ev_rt_now = ev_time (); |
913 | mn_now = get_clock (); |
1223 | mn_now = get_clock (); |
914 | now_floor = mn_now; |
1224 | now_floor = mn_now; |
915 | } |
1225 | } |
916 | |
1226 | |
|
|
1227 | # if EV_PERIODIC_ENABLE |
917 | periodics_reschedule (EV_A); |
1228 | periodics_reschedule (EV_A); |
|
|
1229 | # endif |
918 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1230 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
919 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1231 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
920 | } |
1232 | } |
921 | } |
1233 | } |
922 | else |
1234 | else |
923 | #endif |
1235 | #endif |
924 | { |
1236 | { |
925 | rt_now = ev_time (); |
1237 | ev_rt_now = ev_time (); |
926 | |
1238 | |
927 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1239 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
928 | { |
1240 | { |
|
|
1241 | #if EV_PERIODIC_ENABLE |
929 | periodics_reschedule (EV_A); |
1242 | periodics_reschedule (EV_A); |
|
|
1243 | #endif |
930 | |
1244 | |
931 | /* adjust timers. this is easy, as the offset is the same for all */ |
1245 | /* adjust timers. this is easy, as the offset is the same for all */ |
932 | for (i = 0; i < timercnt; ++i) |
1246 | for (i = 0; i < timercnt; ++i) |
933 | ((WT)timers [i])->at += rt_now - mn_now; |
1247 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
934 | } |
1248 | } |
935 | |
1249 | |
936 | mn_now = rt_now; |
1250 | mn_now = ev_rt_now; |
937 | } |
1251 | } |
938 | } |
1252 | } |
939 | |
1253 | |
940 | void |
1254 | void |
941 | ev_ref (EV_P) |
1255 | ev_ref (EV_P) |
… | |
… | |
952 | static int loop_done; |
1266 | static int loop_done; |
953 | |
1267 | |
954 | void |
1268 | void |
955 | ev_loop (EV_P_ int flags) |
1269 | ev_loop (EV_P_ int flags) |
956 | { |
1270 | { |
957 | double block; |
|
|
958 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1271 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1272 | ? EVUNLOOP_ONE |
|
|
1273 | : EVUNLOOP_CANCEL; |
959 | |
1274 | |
960 | do |
1275 | while (activecnt) |
961 | { |
1276 | { |
962 | /* queue check watchers (and execute them) */ |
1277 | /* queue check watchers (and execute them) */ |
963 | if (expect_false (preparecnt)) |
1278 | if (expect_false (preparecnt)) |
964 | { |
1279 | { |
965 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1280 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
966 | call_pending (EV_A); |
1281 | call_pending (EV_A); |
967 | } |
1282 | } |
968 | |
1283 | |
|
|
1284 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1285 | if (expect_false (postfork)) |
|
|
1286 | loop_fork (EV_A); |
|
|
1287 | |
969 | /* update fd-related kernel structures */ |
1288 | /* update fd-related kernel structures */ |
970 | fd_reify (EV_A); |
1289 | fd_reify (EV_A); |
971 | |
1290 | |
972 | /* calculate blocking time */ |
1291 | /* calculate blocking time */ |
|
|
1292 | { |
|
|
1293 | double block; |
973 | |
1294 | |
974 | /* we only need this for !monotonic clockor timers, but as we basically |
1295 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
975 | always have timers, we just calculate it always */ |
1296 | block = 0.; /* do not block at all */ |
|
|
1297 | else |
|
|
1298 | { |
|
|
1299 | /* update time to cancel out callback processing overhead */ |
976 | #if EV_USE_MONOTONIC |
1300 | #if EV_USE_MONOTONIC |
977 | if (expect_true (have_monotonic)) |
1301 | if (expect_true (have_monotonic)) |
978 | time_update_monotonic (EV_A); |
1302 | time_update_monotonic (EV_A); |
979 | else |
1303 | else |
980 | #endif |
1304 | #endif |
981 | { |
1305 | { |
982 | rt_now = ev_time (); |
1306 | ev_rt_now = ev_time (); |
983 | mn_now = rt_now; |
1307 | mn_now = ev_rt_now; |
984 | } |
1308 | } |
985 | |
1309 | |
986 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
987 | block = 0.; |
|
|
988 | else |
|
|
989 | { |
|
|
990 | block = MAX_BLOCKTIME; |
1310 | block = MAX_BLOCKTIME; |
991 | |
1311 | |
992 | if (timercnt) |
1312 | if (timercnt) |
993 | { |
1313 | { |
994 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1314 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
995 | if (block > to) block = to; |
1315 | if (block > to) block = to; |
996 | } |
1316 | } |
997 | |
1317 | |
|
|
1318 | #if EV_PERIODIC_ENABLE |
998 | if (periodiccnt) |
1319 | if (periodiccnt) |
999 | { |
1320 | { |
1000 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1321 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1001 | if (block > to) block = to; |
1322 | if (block > to) block = to; |
1002 | } |
1323 | } |
|
|
1324 | #endif |
1003 | |
1325 | |
1004 | if (block < 0.) block = 0.; |
1326 | if (expect_false (block < 0.)) block = 0.; |
1005 | } |
1327 | } |
1006 | |
1328 | |
1007 | method_poll (EV_A_ block); |
1329 | backend_poll (EV_A_ block); |
|
|
1330 | } |
1008 | |
1331 | |
1009 | /* update rt_now, do magic */ |
1332 | /* update ev_rt_now, do magic */ |
1010 | time_update (EV_A); |
1333 | time_update (EV_A); |
1011 | |
1334 | |
1012 | /* queue pending timers and reschedule them */ |
1335 | /* queue pending timers and reschedule them */ |
1013 | timers_reify (EV_A); /* relative timers called last */ |
1336 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1337 | #if EV_PERIODIC_ENABLE |
1014 | periodics_reify (EV_A); /* absolute timers called first */ |
1338 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1339 | #endif |
1015 | |
1340 | |
1016 | /* queue idle watchers unless io or timers are pending */ |
1341 | /* queue idle watchers unless other events are pending */ |
1017 | if (!pendingcnt) |
1342 | if (idlecnt && !any_pending (EV_A)) |
1018 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1343 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1019 | |
1344 | |
1020 | /* queue check watchers, to be executed first */ |
1345 | /* queue check watchers, to be executed first */ |
1021 | if (checkcnt) |
1346 | if (expect_false (checkcnt)) |
1022 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1347 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1023 | |
1348 | |
1024 | call_pending (EV_A); |
1349 | call_pending (EV_A); |
1025 | } |
|
|
1026 | while (activecnt && !loop_done); |
|
|
1027 | |
1350 | |
1028 | if (loop_done != 2) |
1351 | if (expect_false (loop_done)) |
1029 | loop_done = 0; |
1352 | break; |
|
|
1353 | } |
|
|
1354 | |
|
|
1355 | if (loop_done == EVUNLOOP_ONE) |
|
|
1356 | loop_done = EVUNLOOP_CANCEL; |
1030 | } |
1357 | } |
1031 | |
1358 | |
1032 | void |
1359 | void |
1033 | ev_unloop (EV_P_ int how) |
1360 | ev_unloop (EV_P_ int how) |
1034 | { |
1361 | { |
1035 | loop_done = how; |
1362 | loop_done = how; |
1036 | } |
1363 | } |
1037 | |
1364 | |
1038 | /*****************************************************************************/ |
1365 | /*****************************************************************************/ |
1039 | |
1366 | |
1040 | inline void |
1367 | void inline_size |
1041 | wlist_add (WL *head, WL elem) |
1368 | wlist_add (WL *head, WL elem) |
1042 | { |
1369 | { |
1043 | elem->next = *head; |
1370 | elem->next = *head; |
1044 | *head = elem; |
1371 | *head = elem; |
1045 | } |
1372 | } |
1046 | |
1373 | |
1047 | inline void |
1374 | void inline_size |
1048 | wlist_del (WL *head, WL elem) |
1375 | wlist_del (WL *head, WL elem) |
1049 | { |
1376 | { |
1050 | while (*head) |
1377 | while (*head) |
1051 | { |
1378 | { |
1052 | if (*head == elem) |
1379 | if (*head == elem) |
… | |
… | |
1057 | |
1384 | |
1058 | head = &(*head)->next; |
1385 | head = &(*head)->next; |
1059 | } |
1386 | } |
1060 | } |
1387 | } |
1061 | |
1388 | |
1062 | inline void |
1389 | void inline_speed |
1063 | ev_clear_pending (EV_P_ W w) |
1390 | ev_clear_pending (EV_P_ W w) |
1064 | { |
1391 | { |
1065 | if (w->pending) |
1392 | if (w->pending) |
1066 | { |
1393 | { |
1067 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1394 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1068 | w->pending = 0; |
1395 | w->pending = 0; |
1069 | } |
1396 | } |
1070 | } |
1397 | } |
1071 | |
1398 | |
1072 | inline void |
1399 | void inline_speed |
1073 | ev_start (EV_P_ W w, int active) |
1400 | ev_start (EV_P_ W w, int active) |
1074 | { |
1401 | { |
1075 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1402 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1076 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1403 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1077 | |
1404 | |
1078 | w->active = active; |
1405 | w->active = active; |
1079 | ev_ref (EV_A); |
1406 | ev_ref (EV_A); |
1080 | } |
1407 | } |
1081 | |
1408 | |
1082 | inline void |
1409 | void inline_size |
1083 | ev_stop (EV_P_ W w) |
1410 | ev_stop (EV_P_ W w) |
1084 | { |
1411 | { |
1085 | ev_unref (EV_A); |
1412 | ev_unref (EV_A); |
1086 | w->active = 0; |
1413 | w->active = 0; |
1087 | } |
1414 | } |
1088 | |
1415 | |
1089 | /*****************************************************************************/ |
1416 | /*****************************************************************************/ |
1090 | |
1417 | |
1091 | void |
1418 | void |
1092 | ev_io_start (EV_P_ struct ev_io *w) |
1419 | ev_io_start (EV_P_ ev_io *w) |
1093 | { |
1420 | { |
1094 | int fd = w->fd; |
1421 | int fd = w->fd; |
1095 | |
1422 | |
1096 | if (ev_is_active (w)) |
1423 | if (expect_false (ev_is_active (w))) |
1097 | return; |
1424 | return; |
1098 | |
1425 | |
1099 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1426 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1100 | |
1427 | |
1101 | ev_start (EV_A_ (W)w, 1); |
1428 | ev_start (EV_A_ (W)w, 1); |
1102 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
1429 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
1103 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1430 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1104 | |
1431 | |
1105 | fd_change (EV_A_ fd); |
1432 | fd_change (EV_A_ fd); |
1106 | } |
1433 | } |
1107 | |
1434 | |
1108 | void |
1435 | void |
1109 | ev_io_stop (EV_P_ struct ev_io *w) |
1436 | ev_io_stop (EV_P_ ev_io *w) |
1110 | { |
1437 | { |
1111 | ev_clear_pending (EV_A_ (W)w); |
1438 | ev_clear_pending (EV_A_ (W)w); |
1112 | if (!ev_is_active (w)) |
1439 | if (expect_false (!ev_is_active (w))) |
1113 | return; |
1440 | return; |
|
|
1441 | |
|
|
1442 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1114 | |
1443 | |
1115 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1444 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1116 | ev_stop (EV_A_ (W)w); |
1445 | ev_stop (EV_A_ (W)w); |
1117 | |
1446 | |
1118 | fd_change (EV_A_ w->fd); |
1447 | fd_change (EV_A_ w->fd); |
1119 | } |
1448 | } |
1120 | |
1449 | |
1121 | void |
1450 | void |
1122 | ev_timer_start (EV_P_ struct ev_timer *w) |
1451 | ev_timer_start (EV_P_ ev_timer *w) |
1123 | { |
1452 | { |
1124 | if (ev_is_active (w)) |
1453 | if (expect_false (ev_is_active (w))) |
1125 | return; |
1454 | return; |
1126 | |
1455 | |
1127 | ((WT)w)->at += mn_now; |
1456 | ((WT)w)->at += mn_now; |
1128 | |
1457 | |
1129 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1458 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1130 | |
1459 | |
1131 | ev_start (EV_A_ (W)w, ++timercnt); |
1460 | ev_start (EV_A_ (W)w, ++timercnt); |
1132 | array_needsize (timers, timermax, timercnt, ); |
1461 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1133 | timers [timercnt - 1] = w; |
1462 | timers [timercnt - 1] = w; |
1134 | upheap ((WT *)timers, timercnt - 1); |
1463 | upheap ((WT *)timers, timercnt - 1); |
1135 | |
1464 | |
1136 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1465 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1137 | } |
1466 | } |
1138 | |
1467 | |
1139 | void |
1468 | void |
1140 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1469 | ev_timer_stop (EV_P_ ev_timer *w) |
1141 | { |
1470 | { |
1142 | ev_clear_pending (EV_A_ (W)w); |
1471 | ev_clear_pending (EV_A_ (W)w); |
1143 | if (!ev_is_active (w)) |
1472 | if (expect_false (!ev_is_active (w))) |
1144 | return; |
1473 | return; |
1145 | |
1474 | |
1146 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1475 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1147 | |
1476 | |
1148 | if (((W)w)->active < timercnt--) |
1477 | if (expect_true (((W)w)->active < timercnt--)) |
1149 | { |
1478 | { |
1150 | timers [((W)w)->active - 1] = timers [timercnt]; |
1479 | timers [((W)w)->active - 1] = timers [timercnt]; |
1151 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1480 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1152 | } |
1481 | } |
1153 | |
1482 | |
1154 | ((WT)w)->at = w->repeat; |
1483 | ((WT)w)->at -= mn_now; |
1155 | |
1484 | |
1156 | ev_stop (EV_A_ (W)w); |
1485 | ev_stop (EV_A_ (W)w); |
1157 | } |
1486 | } |
1158 | |
1487 | |
1159 | void |
1488 | void |
1160 | ev_timer_again (EV_P_ struct ev_timer *w) |
1489 | ev_timer_again (EV_P_ ev_timer *w) |
1161 | { |
1490 | { |
1162 | if (ev_is_active (w)) |
1491 | if (ev_is_active (w)) |
1163 | { |
1492 | { |
1164 | if (w->repeat) |
1493 | if (w->repeat) |
1165 | { |
1494 | { |
1166 | ((WT)w)->at = mn_now + w->repeat; |
1495 | ((WT)w)->at = mn_now + w->repeat; |
1167 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1496 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1168 | } |
1497 | } |
1169 | else |
1498 | else |
1170 | ev_timer_stop (EV_A_ w); |
1499 | ev_timer_stop (EV_A_ w); |
1171 | } |
1500 | } |
1172 | else if (w->repeat) |
1501 | else if (w->repeat) |
|
|
1502 | { |
|
|
1503 | w->at = w->repeat; |
1173 | ev_timer_start (EV_A_ w); |
1504 | ev_timer_start (EV_A_ w); |
|
|
1505 | } |
1174 | } |
1506 | } |
1175 | |
1507 | |
|
|
1508 | #if EV_PERIODIC_ENABLE |
1176 | void |
1509 | void |
1177 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1510 | ev_periodic_start (EV_P_ ev_periodic *w) |
1178 | { |
1511 | { |
1179 | if (ev_is_active (w)) |
1512 | if (expect_false (ev_is_active (w))) |
1180 | return; |
1513 | return; |
1181 | |
1514 | |
|
|
1515 | if (w->reschedule_cb) |
|
|
1516 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1517 | else if (w->interval) |
|
|
1518 | { |
1182 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1519 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1183 | |
|
|
1184 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1520 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1185 | if (w->interval) |
|
|
1186 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1521 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1522 | } |
1187 | |
1523 | |
1188 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1524 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1189 | array_needsize (periodics, periodicmax, periodiccnt, ); |
1525 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1190 | periodics [periodiccnt - 1] = w; |
1526 | periodics [periodiccnt - 1] = w; |
1191 | upheap ((WT *)periodics, periodiccnt - 1); |
1527 | upheap ((WT *)periodics, periodiccnt - 1); |
1192 | |
1528 | |
1193 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1529 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1194 | } |
1530 | } |
1195 | |
1531 | |
1196 | void |
1532 | void |
1197 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1533 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1198 | { |
1534 | { |
1199 | ev_clear_pending (EV_A_ (W)w); |
1535 | ev_clear_pending (EV_A_ (W)w); |
1200 | if (!ev_is_active (w)) |
1536 | if (expect_false (!ev_is_active (w))) |
1201 | return; |
1537 | return; |
1202 | |
1538 | |
1203 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1539 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1204 | |
1540 | |
1205 | if (((W)w)->active < periodiccnt--) |
1541 | if (expect_true (((W)w)->active < periodiccnt--)) |
1206 | { |
1542 | { |
1207 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1543 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1208 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1544 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1209 | } |
1545 | } |
1210 | |
1546 | |
1211 | ev_stop (EV_A_ (W)w); |
1547 | ev_stop (EV_A_ (W)w); |
1212 | } |
1548 | } |
1213 | |
1549 | |
1214 | void |
1550 | void |
|
|
1551 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1552 | { |
|
|
1553 | /* TODO: use adjustheap and recalculation */ |
|
|
1554 | ev_periodic_stop (EV_A_ w); |
|
|
1555 | ev_periodic_start (EV_A_ w); |
|
|
1556 | } |
|
|
1557 | #endif |
|
|
1558 | |
|
|
1559 | void |
1215 | ev_idle_start (EV_P_ struct ev_idle *w) |
1560 | ev_idle_start (EV_P_ ev_idle *w) |
1216 | { |
1561 | { |
1217 | if (ev_is_active (w)) |
1562 | if (expect_false (ev_is_active (w))) |
1218 | return; |
1563 | return; |
1219 | |
1564 | |
1220 | ev_start (EV_A_ (W)w, ++idlecnt); |
1565 | ev_start (EV_A_ (W)w, ++idlecnt); |
1221 | array_needsize (idles, idlemax, idlecnt, ); |
1566 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
1222 | idles [idlecnt - 1] = w; |
1567 | idles [idlecnt - 1] = w; |
1223 | } |
1568 | } |
1224 | |
1569 | |
1225 | void |
1570 | void |
1226 | ev_idle_stop (EV_P_ struct ev_idle *w) |
1571 | ev_idle_stop (EV_P_ ev_idle *w) |
1227 | { |
1572 | { |
1228 | ev_clear_pending (EV_A_ (W)w); |
1573 | ev_clear_pending (EV_A_ (W)w); |
1229 | if (ev_is_active (w)) |
1574 | if (expect_false (!ev_is_active (w))) |
1230 | return; |
1575 | return; |
1231 | |
1576 | |
|
|
1577 | { |
|
|
1578 | int active = ((W)w)->active; |
1232 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
1579 | idles [active - 1] = idles [--idlecnt]; |
|
|
1580 | ((W)idles [active - 1])->active = active; |
|
|
1581 | } |
|
|
1582 | |
1233 | ev_stop (EV_A_ (W)w); |
1583 | ev_stop (EV_A_ (W)w); |
1234 | } |
1584 | } |
1235 | |
1585 | |
1236 | void |
1586 | void |
1237 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
1587 | ev_prepare_start (EV_P_ ev_prepare *w) |
1238 | { |
1588 | { |
1239 | if (ev_is_active (w)) |
1589 | if (expect_false (ev_is_active (w))) |
1240 | return; |
1590 | return; |
1241 | |
1591 | |
1242 | ev_start (EV_A_ (W)w, ++preparecnt); |
1592 | ev_start (EV_A_ (W)w, ++preparecnt); |
1243 | array_needsize (prepares, preparemax, preparecnt, ); |
1593 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
1244 | prepares [preparecnt - 1] = w; |
1594 | prepares [preparecnt - 1] = w; |
1245 | } |
1595 | } |
1246 | |
1596 | |
1247 | void |
1597 | void |
1248 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
1598 | ev_prepare_stop (EV_P_ ev_prepare *w) |
1249 | { |
1599 | { |
1250 | ev_clear_pending (EV_A_ (W)w); |
1600 | ev_clear_pending (EV_A_ (W)w); |
1251 | if (ev_is_active (w)) |
1601 | if (expect_false (!ev_is_active (w))) |
1252 | return; |
1602 | return; |
1253 | |
1603 | |
|
|
1604 | { |
|
|
1605 | int active = ((W)w)->active; |
1254 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
1606 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
1607 | ((W)prepares [active - 1])->active = active; |
|
|
1608 | } |
|
|
1609 | |
1255 | ev_stop (EV_A_ (W)w); |
1610 | ev_stop (EV_A_ (W)w); |
1256 | } |
1611 | } |
1257 | |
1612 | |
1258 | void |
1613 | void |
1259 | ev_check_start (EV_P_ struct ev_check *w) |
1614 | ev_check_start (EV_P_ ev_check *w) |
1260 | { |
1615 | { |
1261 | if (ev_is_active (w)) |
1616 | if (expect_false (ev_is_active (w))) |
1262 | return; |
1617 | return; |
1263 | |
1618 | |
1264 | ev_start (EV_A_ (W)w, ++checkcnt); |
1619 | ev_start (EV_A_ (W)w, ++checkcnt); |
1265 | array_needsize (checks, checkmax, checkcnt, ); |
1620 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
1266 | checks [checkcnt - 1] = w; |
1621 | checks [checkcnt - 1] = w; |
1267 | } |
1622 | } |
1268 | |
1623 | |
1269 | void |
1624 | void |
1270 | ev_check_stop (EV_P_ struct ev_check *w) |
1625 | ev_check_stop (EV_P_ ev_check *w) |
1271 | { |
1626 | { |
1272 | ev_clear_pending (EV_A_ (W)w); |
1627 | ev_clear_pending (EV_A_ (W)w); |
1273 | if (ev_is_active (w)) |
1628 | if (expect_false (!ev_is_active (w))) |
1274 | return; |
1629 | return; |
1275 | |
1630 | |
|
|
1631 | { |
|
|
1632 | int active = ((W)w)->active; |
1276 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
1633 | checks [active - 1] = checks [--checkcnt]; |
|
|
1634 | ((W)checks [active - 1])->active = active; |
|
|
1635 | } |
|
|
1636 | |
1277 | ev_stop (EV_A_ (W)w); |
1637 | ev_stop (EV_A_ (W)w); |
1278 | } |
1638 | } |
1279 | |
1639 | |
1280 | #ifndef SA_RESTART |
1640 | #ifndef SA_RESTART |
1281 | # define SA_RESTART 0 |
1641 | # define SA_RESTART 0 |
1282 | #endif |
1642 | #endif |
1283 | |
1643 | |
1284 | void |
1644 | void |
1285 | ev_signal_start (EV_P_ struct ev_signal *w) |
1645 | ev_signal_start (EV_P_ ev_signal *w) |
1286 | { |
1646 | { |
1287 | #if EV_MULTIPLICITY |
1647 | #if EV_MULTIPLICITY |
1288 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1648 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1289 | #endif |
1649 | #endif |
1290 | if (ev_is_active (w)) |
1650 | if (expect_false (ev_is_active (w))) |
1291 | return; |
1651 | return; |
1292 | |
1652 | |
1293 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1653 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1294 | |
1654 | |
1295 | ev_start (EV_A_ (W)w, 1); |
1655 | ev_start (EV_A_ (W)w, 1); |
1296 | array_needsize (signals, signalmax, w->signum, signals_init); |
1656 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1297 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1657 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1298 | |
1658 | |
1299 | if (!((WL)w)->next) |
1659 | if (!((WL)w)->next) |
1300 | { |
1660 | { |
|
|
1661 | #if _WIN32 |
|
|
1662 | signal (w->signum, sighandler); |
|
|
1663 | #else |
1301 | struct sigaction sa; |
1664 | struct sigaction sa; |
1302 | sa.sa_handler = sighandler; |
1665 | sa.sa_handler = sighandler; |
1303 | sigfillset (&sa.sa_mask); |
1666 | sigfillset (&sa.sa_mask); |
1304 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1667 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
1305 | sigaction (w->signum, &sa, 0); |
1668 | sigaction (w->signum, &sa, 0); |
|
|
1669 | #endif |
1306 | } |
1670 | } |
1307 | } |
1671 | } |
1308 | |
1672 | |
1309 | void |
1673 | void |
1310 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1674 | ev_signal_stop (EV_P_ ev_signal *w) |
1311 | { |
1675 | { |
1312 | ev_clear_pending (EV_A_ (W)w); |
1676 | ev_clear_pending (EV_A_ (W)w); |
1313 | if (!ev_is_active (w)) |
1677 | if (expect_false (!ev_is_active (w))) |
1314 | return; |
1678 | return; |
1315 | |
1679 | |
1316 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1680 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1317 | ev_stop (EV_A_ (W)w); |
1681 | ev_stop (EV_A_ (W)w); |
1318 | |
1682 | |
1319 | if (!signals [w->signum - 1].head) |
1683 | if (!signals [w->signum - 1].head) |
1320 | signal (w->signum, SIG_DFL); |
1684 | signal (w->signum, SIG_DFL); |
1321 | } |
1685 | } |
1322 | |
1686 | |
1323 | void |
1687 | void |
1324 | ev_child_start (EV_P_ struct ev_child *w) |
1688 | ev_child_start (EV_P_ ev_child *w) |
1325 | { |
1689 | { |
1326 | #if EV_MULTIPLICITY |
1690 | #if EV_MULTIPLICITY |
1327 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1691 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1328 | #endif |
1692 | #endif |
1329 | if (ev_is_active (w)) |
1693 | if (expect_false (ev_is_active (w))) |
1330 | return; |
1694 | return; |
1331 | |
1695 | |
1332 | ev_start (EV_A_ (W)w, 1); |
1696 | ev_start (EV_A_ (W)w, 1); |
1333 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1697 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1334 | } |
1698 | } |
1335 | |
1699 | |
1336 | void |
1700 | void |
1337 | ev_child_stop (EV_P_ struct ev_child *w) |
1701 | ev_child_stop (EV_P_ ev_child *w) |
1338 | { |
1702 | { |
1339 | ev_clear_pending (EV_A_ (W)w); |
1703 | ev_clear_pending (EV_A_ (W)w); |
1340 | if (ev_is_active (w)) |
1704 | if (expect_false (!ev_is_active (w))) |
1341 | return; |
1705 | return; |
1342 | |
1706 | |
1343 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1707 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1344 | ev_stop (EV_A_ (W)w); |
1708 | ev_stop (EV_A_ (W)w); |
1345 | } |
1709 | } |
1346 | |
1710 | |
|
|
1711 | #if EV_EMBED_ENABLE |
|
|
1712 | void noinline |
|
|
1713 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
1714 | { |
|
|
1715 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | static void |
|
|
1719 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
1720 | { |
|
|
1721 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
1722 | |
|
|
1723 | if (ev_cb (w)) |
|
|
1724 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
1725 | else |
|
|
1726 | ev_embed_sweep (loop, w); |
|
|
1727 | } |
|
|
1728 | |
|
|
1729 | void |
|
|
1730 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
1731 | { |
|
|
1732 | if (expect_false (ev_is_active (w))) |
|
|
1733 | return; |
|
|
1734 | |
|
|
1735 | { |
|
|
1736 | struct ev_loop *loop = w->loop; |
|
|
1737 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
1738 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1739 | } |
|
|
1740 | |
|
|
1741 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1742 | ev_io_start (EV_A_ &w->io); |
|
|
1743 | |
|
|
1744 | ev_start (EV_A_ (W)w, 1); |
|
|
1745 | } |
|
|
1746 | |
|
|
1747 | void |
|
|
1748 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
1749 | { |
|
|
1750 | ev_clear_pending (EV_A_ (W)w); |
|
|
1751 | if (expect_false (!ev_is_active (w))) |
|
|
1752 | return; |
|
|
1753 | |
|
|
1754 | ev_io_stop (EV_A_ &w->io); |
|
|
1755 | |
|
|
1756 | ev_stop (EV_A_ (W)w); |
|
|
1757 | } |
|
|
1758 | #endif |
|
|
1759 | |
|
|
1760 | #if EV_STAT_ENABLE |
|
|
1761 | |
|
|
1762 | # ifdef _WIN32 |
|
|
1763 | # define lstat(a,b) stat(a,b) |
|
|
1764 | # endif |
|
|
1765 | |
|
|
1766 | void |
|
|
1767 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1768 | { |
|
|
1769 | if (lstat (w->path, &w->attr) < 0) |
|
|
1770 | w->attr.st_nlink = 0; |
|
|
1771 | else if (!w->attr.st_nlink) |
|
|
1772 | w->attr.st_nlink = 1; |
|
|
1773 | } |
|
|
1774 | |
|
|
1775 | static void |
|
|
1776 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1777 | { |
|
|
1778 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1779 | |
|
|
1780 | /* we copy this here each the time so that */ |
|
|
1781 | /* prev has the old value when the callback gets invoked */ |
|
|
1782 | w->prev = w->attr; |
|
|
1783 | ev_stat_stat (EV_A_ w); |
|
|
1784 | |
|
|
1785 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1786 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | void |
|
|
1790 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1791 | { |
|
|
1792 | if (expect_false (ev_is_active (w))) |
|
|
1793 | return; |
|
|
1794 | |
|
|
1795 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1796 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1797 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1798 | |
|
|
1799 | ev_stat_stat (EV_A_ w); |
|
|
1800 | |
|
|
1801 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1802 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1803 | ev_timer_start (EV_A_ &w->timer); |
|
|
1804 | |
|
|
1805 | ev_start (EV_A_ (W)w, 1); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | void |
|
|
1809 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1810 | { |
|
|
1811 | ev_clear_pending (EV_A_ (W)w); |
|
|
1812 | if (expect_false (!ev_is_active (w))) |
|
|
1813 | return; |
|
|
1814 | |
|
|
1815 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1816 | |
|
|
1817 | ev_stop (EV_A_ (W)w); |
|
|
1818 | } |
|
|
1819 | #endif |
|
|
1820 | |
1347 | /*****************************************************************************/ |
1821 | /*****************************************************************************/ |
1348 | |
1822 | |
1349 | struct ev_once |
1823 | struct ev_once |
1350 | { |
1824 | { |
1351 | struct ev_io io; |
1825 | ev_io io; |
1352 | struct ev_timer to; |
1826 | ev_timer to; |
1353 | void (*cb)(int revents, void *arg); |
1827 | void (*cb)(int revents, void *arg); |
1354 | void *arg; |
1828 | void *arg; |
1355 | }; |
1829 | }; |
1356 | |
1830 | |
1357 | static void |
1831 | static void |
… | |
… | |
1360 | void (*cb)(int revents, void *arg) = once->cb; |
1834 | void (*cb)(int revents, void *arg) = once->cb; |
1361 | void *arg = once->arg; |
1835 | void *arg = once->arg; |
1362 | |
1836 | |
1363 | ev_io_stop (EV_A_ &once->io); |
1837 | ev_io_stop (EV_A_ &once->io); |
1364 | ev_timer_stop (EV_A_ &once->to); |
1838 | ev_timer_stop (EV_A_ &once->to); |
1365 | free (once); |
1839 | ev_free (once); |
1366 | |
1840 | |
1367 | cb (revents, arg); |
1841 | cb (revents, arg); |
1368 | } |
1842 | } |
1369 | |
1843 | |
1370 | static void |
1844 | static void |
1371 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1845 | once_cb_io (EV_P_ ev_io *w, int revents) |
1372 | { |
1846 | { |
1373 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1847 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1374 | } |
1848 | } |
1375 | |
1849 | |
1376 | static void |
1850 | static void |
1377 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1851 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1378 | { |
1852 | { |
1379 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1853 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1380 | } |
1854 | } |
1381 | |
1855 | |
1382 | void |
1856 | void |
1383 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1857 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1384 | { |
1858 | { |
1385 | struct ev_once *once = malloc (sizeof (struct ev_once)); |
1859 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1386 | |
1860 | |
1387 | if (!once) |
1861 | if (expect_false (!once)) |
|
|
1862 | { |
1388 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1863 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1389 | else |
1864 | return; |
1390 | { |
1865 | } |
|
|
1866 | |
1391 | once->cb = cb; |
1867 | once->cb = cb; |
1392 | once->arg = arg; |
1868 | once->arg = arg; |
1393 | |
1869 | |
1394 | ev_watcher_init (&once->io, once_cb_io); |
1870 | ev_init (&once->io, once_cb_io); |
1395 | if (fd >= 0) |
1871 | if (fd >= 0) |
1396 | { |
1872 | { |
1397 | ev_io_set (&once->io, fd, events); |
1873 | ev_io_set (&once->io, fd, events); |
1398 | ev_io_start (EV_A_ &once->io); |
1874 | ev_io_start (EV_A_ &once->io); |
1399 | } |
1875 | } |
1400 | |
1876 | |
1401 | ev_watcher_init (&once->to, once_cb_to); |
1877 | ev_init (&once->to, once_cb_to); |
1402 | if (timeout >= 0.) |
1878 | if (timeout >= 0.) |
1403 | { |
1879 | { |
1404 | ev_timer_set (&once->to, timeout, 0.); |
1880 | ev_timer_set (&once->to, timeout, 0.); |
1405 | ev_timer_start (EV_A_ &once->to); |
1881 | ev_timer_start (EV_A_ &once->to); |
1406 | } |
|
|
1407 | } |
1882 | } |
1408 | } |
1883 | } |
1409 | |
1884 | |
|
|
1885 | #ifdef __cplusplus |
|
|
1886 | } |
|
|
1887 | #endif |
|
|
1888 | |