… | |
… | |
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> |
… | |
… | |
66 | #include <sys/types.h> |
110 | #include <sys/types.h> |
67 | #include <time.h> |
111 | #include <time.h> |
68 | |
112 | |
69 | #include <signal.h> |
113 | #include <signal.h> |
70 | |
114 | |
71 | #ifndef WIN32 |
115 | #ifndef _WIN32 |
72 | # include <unistd.h> |
|
|
73 | # include <sys/time.h> |
116 | # include <sys/time.h> |
74 | # 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 |
75 | #endif |
124 | # endif |
|
|
125 | #endif |
|
|
126 | |
76 | /**/ |
127 | /**/ |
77 | |
128 | |
78 | #ifndef EV_USE_MONOTONIC |
129 | #ifndef EV_USE_MONOTONIC |
79 | # 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 |
80 | #endif |
135 | #endif |
81 | |
136 | |
82 | #ifndef EV_USE_SELECT |
137 | #ifndef EV_USE_SELECT |
83 | # define EV_USE_SELECT 1 |
138 | # define EV_USE_SELECT 1 |
84 | #endif |
139 | #endif |
85 | |
140 | |
86 | #ifndef EV_USE_POLL |
141 | #ifndef EV_USE_POLL |
87 | # 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 |
88 | #endif |
147 | #endif |
89 | |
148 | |
90 | #ifndef EV_USE_EPOLL |
149 | #ifndef EV_USE_EPOLL |
91 | # define EV_USE_EPOLL 0 |
150 | # define EV_USE_EPOLL 0 |
92 | #endif |
151 | #endif |
93 | |
152 | |
94 | #ifndef EV_USE_KQUEUE |
153 | #ifndef EV_USE_KQUEUE |
95 | # define EV_USE_KQUEUE 0 |
154 | # define EV_USE_KQUEUE 0 |
96 | #endif |
155 | #endif |
97 | |
156 | |
98 | #ifndef EV_USE_WIN32 |
157 | #ifndef EV_USE_PORT |
99 | # ifdef WIN32 |
|
|
100 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
|
|
101 | # undef EV_USE_SELECT |
|
|
102 | # define EV_USE_SELECT 1 |
158 | # define EV_USE_PORT 0 |
|
|
159 | #endif |
|
|
160 | |
|
|
161 | #ifndef EV_PID_HASHSIZE |
|
|
162 | # if EV_MINIMAL |
|
|
163 | # define EV_PID_HASHSIZE 1 |
103 | # else |
164 | # else |
104 | # define EV_USE_WIN32 0 |
165 | # define EV_PID_HASHSIZE 16 |
105 | # endif |
166 | # endif |
106 | #endif |
|
|
107 | |
|
|
108 | #ifndef EV_USE_REALTIME |
|
|
109 | # define EV_USE_REALTIME 1 |
|
|
110 | #endif |
167 | #endif |
111 | |
168 | |
112 | /**/ |
169 | /**/ |
113 | |
170 | |
114 | #ifndef CLOCK_MONOTONIC |
171 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
119 | #ifndef CLOCK_REALTIME |
176 | #ifndef CLOCK_REALTIME |
120 | # undef EV_USE_REALTIME |
177 | # undef EV_USE_REALTIME |
121 | # define EV_USE_REALTIME 0 |
178 | # define EV_USE_REALTIME 0 |
122 | #endif |
179 | #endif |
123 | |
180 | |
|
|
181 | #if EV_SELECT_IS_WINSOCKET |
|
|
182 | # include <winsock.h> |
|
|
183 | #endif |
|
|
184 | |
124 | /**/ |
185 | /**/ |
125 | |
186 | |
126 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
187 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
127 | #define MAX_BLOCKTIME 59.731 /* never wait longer than this time (to detect time jumps) */ |
188 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
128 | #define PID_HASHSIZE 16 /* size of pid hash table, must be power of two */ |
|
|
129 | /*#define CLEANUP_INTERVAL 300. /* how often to try to free memory and re-check fds */ |
189 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds */ |
130 | |
190 | |
|
|
191 | #ifdef EV_H |
|
|
192 | # include EV_H |
|
|
193 | #else |
131 | #include "ev.h" |
194 | # include "ev.h" |
|
|
195 | #endif |
132 | |
196 | |
133 | #if __GNUC__ >= 3 |
197 | #if __GNUC__ >= 3 |
134 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
198 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
|
|
199 | # define inline_size static inline /* inline for codesize */ |
|
|
200 | # if EV_MINIMAL |
135 | # define inline inline |
201 | # define noinline __attribute__ ((noinline)) |
|
|
202 | # define inline_speed static noinline |
|
|
203 | # else |
|
|
204 | # define noinline |
|
|
205 | # define inline_speed static inline |
|
|
206 | # endif |
136 | #else |
207 | #else |
137 | # define expect(expr,value) (expr) |
208 | # define expect(expr,value) (expr) |
|
|
209 | # define inline_speed static |
138 | # define inline static |
210 | # define inline_size static |
|
|
211 | # define noinline |
139 | #endif |
212 | #endif |
140 | |
213 | |
141 | #define expect_false(expr) expect ((expr) != 0, 0) |
214 | #define expect_false(expr) expect ((expr) != 0, 0) |
142 | #define expect_true(expr) expect ((expr) != 0, 1) |
215 | #define expect_true(expr) expect ((expr) != 0, 1) |
143 | |
216 | |
144 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
217 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
145 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
218 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
146 | |
219 | |
|
|
220 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
221 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
222 | |
147 | typedef struct ev_watcher *W; |
223 | typedef ev_watcher *W; |
148 | typedef struct ev_watcher_list *WL; |
224 | typedef ev_watcher_list *WL; |
149 | typedef struct ev_watcher_time *WT; |
225 | typedef ev_watcher_time *WT; |
150 | |
226 | |
151 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
227 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
152 | |
228 | |
|
|
229 | #ifdef _WIN32 |
153 | #include "ev_win32.c" |
230 | # include "ev_win32.c" |
|
|
231 | #endif |
154 | |
232 | |
155 | /*****************************************************************************/ |
233 | /*****************************************************************************/ |
156 | |
234 | |
157 | static void (*syserr_cb)(const char *msg); |
235 | static void (*syserr_cb)(const char *msg); |
158 | |
236 | |
|
|
237 | void |
159 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
238 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
160 | { |
239 | { |
161 | syserr_cb = cb; |
240 | syserr_cb = cb; |
162 | } |
241 | } |
163 | |
242 | |
164 | static void |
243 | static void noinline |
165 | syserr (const char *msg) |
244 | syserr (const char *msg) |
166 | { |
245 | { |
167 | if (!msg) |
246 | if (!msg) |
168 | msg = "(libev) system error"; |
247 | msg = "(libev) system error"; |
169 | |
248 | |
… | |
… | |
176 | } |
255 | } |
177 | } |
256 | } |
178 | |
257 | |
179 | static void *(*alloc)(void *ptr, long size); |
258 | static void *(*alloc)(void *ptr, long size); |
180 | |
259 | |
|
|
260 | void |
181 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
261 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
182 | { |
262 | { |
183 | alloc = cb; |
263 | alloc = cb; |
184 | } |
264 | } |
185 | |
265 | |
186 | static void * |
266 | static void * |
… | |
… | |
205 | typedef struct |
285 | typedef struct |
206 | { |
286 | { |
207 | WL head; |
287 | WL head; |
208 | unsigned char events; |
288 | unsigned char events; |
209 | unsigned char reify; |
289 | unsigned char reify; |
|
|
290 | #if EV_SELECT_IS_WINSOCKET |
|
|
291 | SOCKET handle; |
|
|
292 | #endif |
210 | } ANFD; |
293 | } ANFD; |
211 | |
294 | |
212 | typedef struct |
295 | typedef struct |
213 | { |
296 | { |
214 | W w; |
297 | W w; |
215 | int events; |
298 | int events; |
216 | } ANPENDING; |
299 | } ANPENDING; |
217 | |
300 | |
218 | #if EV_MULTIPLICITY |
301 | #if EV_MULTIPLICITY |
219 | |
302 | |
220 | struct ev_loop |
303 | struct ev_loop |
221 | { |
304 | { |
|
|
305 | ev_tstamp ev_rt_now; |
|
|
306 | #define ev_rt_now ((loop)->ev_rt_now) |
222 | # define VAR(name,decl) decl; |
307 | #define VAR(name,decl) decl; |
223 | # include "ev_vars.h" |
308 | #include "ev_vars.h" |
224 | }; |
|
|
225 | # undef VAR |
309 | #undef VAR |
|
|
310 | }; |
226 | # include "ev_wrap.h" |
311 | #include "ev_wrap.h" |
|
|
312 | |
|
|
313 | static struct ev_loop default_loop_struct; |
|
|
314 | struct ev_loop *ev_default_loop_ptr; |
227 | |
315 | |
228 | #else |
316 | #else |
229 | |
317 | |
|
|
318 | ev_tstamp ev_rt_now; |
230 | # define VAR(name,decl) static decl; |
319 | #define VAR(name,decl) static decl; |
231 | # include "ev_vars.h" |
320 | #include "ev_vars.h" |
232 | # undef VAR |
321 | #undef VAR |
|
|
322 | |
|
|
323 | static int ev_default_loop_ptr; |
233 | |
324 | |
234 | #endif |
325 | #endif |
235 | |
326 | |
236 | /*****************************************************************************/ |
327 | /*****************************************************************************/ |
237 | |
328 | |
238 | inline ev_tstamp |
329 | ev_tstamp |
239 | ev_time (void) |
330 | ev_time (void) |
240 | { |
331 | { |
241 | #if EV_USE_REALTIME |
332 | #if EV_USE_REALTIME |
242 | struct timespec ts; |
333 | struct timespec ts; |
243 | clock_gettime (CLOCK_REALTIME, &ts); |
334 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
247 | gettimeofday (&tv, 0); |
338 | gettimeofday (&tv, 0); |
248 | return tv.tv_sec + tv.tv_usec * 1e-6; |
339 | return tv.tv_sec + tv.tv_usec * 1e-6; |
249 | #endif |
340 | #endif |
250 | } |
341 | } |
251 | |
342 | |
252 | inline ev_tstamp |
343 | ev_tstamp inline_size |
253 | get_clock (void) |
344 | get_clock (void) |
254 | { |
345 | { |
255 | #if EV_USE_MONOTONIC |
346 | #if EV_USE_MONOTONIC |
256 | if (expect_true (have_monotonic)) |
347 | if (expect_true (have_monotonic)) |
257 | { |
348 | { |
… | |
… | |
262 | #endif |
353 | #endif |
263 | |
354 | |
264 | return ev_time (); |
355 | return ev_time (); |
265 | } |
356 | } |
266 | |
357 | |
|
|
358 | #if EV_MULTIPLICITY |
267 | ev_tstamp |
359 | ev_tstamp |
268 | ev_now (EV_P) |
360 | ev_now (EV_P) |
269 | { |
361 | { |
270 | return rt_now; |
362 | return ev_rt_now; |
271 | } |
363 | } |
|
|
364 | #endif |
272 | |
365 | |
273 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
366 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
274 | |
367 | |
275 | #define array_needsize(type,base,cur,cnt,init) \ |
368 | #define array_needsize(type,base,cur,cnt,init) \ |
276 | if (expect_false ((cnt) > cur)) \ |
369 | if (expect_false ((cnt) > cur)) \ |
277 | { \ |
370 | { \ |
278 | int newcnt = cur; \ |
371 | int newcnt = cur; \ |
… | |
… | |
293 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
386 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
294 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
387 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
295 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
388 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
296 | } |
389 | } |
297 | |
390 | |
298 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
299 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
300 | #define array_free_microshit(stem) \ |
|
|
301 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
302 | |
|
|
303 | #define array_free(stem, idx) \ |
391 | #define array_free(stem, idx) \ |
304 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
392 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
305 | |
393 | |
306 | /*****************************************************************************/ |
394 | /*****************************************************************************/ |
307 | |
395 | |
308 | static void |
396 | void noinline |
|
|
397 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
398 | { |
|
|
399 | W w_ = (W)w; |
|
|
400 | |
|
|
401 | if (expect_false (w_->pending)) |
|
|
402 | { |
|
|
403 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
404 | return; |
|
|
405 | } |
|
|
406 | |
|
|
407 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
408 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], EMPTY2); |
|
|
409 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
410 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
411 | } |
|
|
412 | |
|
|
413 | void inline_size |
|
|
414 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
415 | { |
|
|
416 | int i; |
|
|
417 | |
|
|
418 | for (i = 0; i < eventcnt; ++i) |
|
|
419 | ev_feed_event (EV_A_ events [i], type); |
|
|
420 | } |
|
|
421 | |
|
|
422 | /*****************************************************************************/ |
|
|
423 | |
|
|
424 | void inline_size |
309 | anfds_init (ANFD *base, int count) |
425 | anfds_init (ANFD *base, int count) |
310 | { |
426 | { |
311 | while (count--) |
427 | while (count--) |
312 | { |
428 | { |
313 | base->head = 0; |
429 | base->head = 0; |
… | |
… | |
316 | |
432 | |
317 | ++base; |
433 | ++base; |
318 | } |
434 | } |
319 | } |
435 | } |
320 | |
436 | |
321 | void |
437 | void inline_speed |
322 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
323 | { |
|
|
324 | W w_ = (W)w; |
|
|
325 | |
|
|
326 | if (w_->pending) |
|
|
327 | { |
|
|
328 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
329 | return; |
|
|
330 | } |
|
|
331 | |
|
|
332 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
333 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
334 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
335 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
336 | } |
|
|
337 | |
|
|
338 | static void |
|
|
339 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
340 | { |
|
|
341 | int i; |
|
|
342 | |
|
|
343 | for (i = 0; i < eventcnt; ++i) |
|
|
344 | ev_feed_event (EV_A_ events [i], type); |
|
|
345 | } |
|
|
346 | |
|
|
347 | inline void |
|
|
348 | fd_event (EV_P_ int fd, int revents) |
438 | fd_event (EV_P_ int fd, int revents) |
349 | { |
439 | { |
350 | ANFD *anfd = anfds + fd; |
440 | ANFD *anfd = anfds + fd; |
351 | struct ev_io *w; |
441 | ev_io *w; |
352 | |
442 | |
353 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
443 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
354 | { |
444 | { |
355 | int ev = w->events & revents; |
445 | int ev = w->events & revents; |
356 | |
446 | |
357 | if (ev) |
447 | if (ev) |
358 | ev_feed_event (EV_A_ (W)w, ev); |
448 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
363 | ev_feed_fd_event (EV_P_ int fd, int revents) |
453 | ev_feed_fd_event (EV_P_ int fd, int revents) |
364 | { |
454 | { |
365 | fd_event (EV_A_ fd, revents); |
455 | fd_event (EV_A_ fd, revents); |
366 | } |
456 | } |
367 | |
457 | |
368 | /*****************************************************************************/ |
458 | void inline_size |
369 | |
|
|
370 | static void |
|
|
371 | fd_reify (EV_P) |
459 | fd_reify (EV_P) |
372 | { |
460 | { |
373 | int i; |
461 | int i; |
374 | |
462 | |
375 | for (i = 0; i < fdchangecnt; ++i) |
463 | for (i = 0; i < fdchangecnt; ++i) |
376 | { |
464 | { |
377 | int fd = fdchanges [i]; |
465 | int fd = fdchanges [i]; |
378 | ANFD *anfd = anfds + fd; |
466 | ANFD *anfd = anfds + fd; |
379 | struct ev_io *w; |
467 | ev_io *w; |
380 | |
468 | |
381 | int events = 0; |
469 | int events = 0; |
382 | |
470 | |
383 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
471 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
384 | events |= w->events; |
472 | events |= w->events; |
385 | |
473 | |
|
|
474 | #if EV_SELECT_IS_WINSOCKET |
|
|
475 | if (events) |
|
|
476 | { |
|
|
477 | unsigned long argp; |
|
|
478 | anfd->handle = _get_osfhandle (fd); |
|
|
479 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
480 | } |
|
|
481 | #endif |
|
|
482 | |
386 | anfd->reify = 0; |
483 | anfd->reify = 0; |
387 | |
484 | |
388 | method_modify (EV_A_ fd, anfd->events, events); |
485 | backend_modify (EV_A_ fd, anfd->events, events); |
389 | anfd->events = events; |
486 | anfd->events = events; |
390 | } |
487 | } |
391 | |
488 | |
392 | fdchangecnt = 0; |
489 | fdchangecnt = 0; |
393 | } |
490 | } |
394 | |
491 | |
395 | static void |
492 | void inline_size |
396 | fd_change (EV_P_ int fd) |
493 | fd_change (EV_P_ int fd) |
397 | { |
494 | { |
398 | if (anfds [fd].reify) |
495 | if (expect_false (anfds [fd].reify)) |
399 | return; |
496 | return; |
400 | |
497 | |
401 | anfds [fd].reify = 1; |
498 | anfds [fd].reify = 1; |
402 | |
499 | |
403 | ++fdchangecnt; |
500 | ++fdchangecnt; |
404 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
501 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
405 | fdchanges [fdchangecnt - 1] = fd; |
502 | fdchanges [fdchangecnt - 1] = fd; |
406 | } |
503 | } |
407 | |
504 | |
408 | static void |
505 | void inline_speed |
409 | fd_kill (EV_P_ int fd) |
506 | fd_kill (EV_P_ int fd) |
410 | { |
507 | { |
411 | struct ev_io *w; |
508 | ev_io *w; |
412 | |
509 | |
413 | while ((w = (struct ev_io *)anfds [fd].head)) |
510 | while ((w = (ev_io *)anfds [fd].head)) |
414 | { |
511 | { |
415 | ev_io_stop (EV_A_ w); |
512 | ev_io_stop (EV_A_ w); |
416 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
513 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
417 | } |
514 | } |
418 | } |
515 | } |
419 | |
516 | |
420 | static int |
517 | int inline_size |
421 | fd_valid (int fd) |
518 | fd_valid (int fd) |
422 | { |
519 | { |
423 | #ifdef WIN32 |
520 | #ifdef _WIN32 |
424 | return !!win32_get_osfhandle (fd); |
521 | return _get_osfhandle (fd) != -1; |
425 | #else |
522 | #else |
426 | return fcntl (fd, F_GETFD) != -1; |
523 | return fcntl (fd, F_GETFD) != -1; |
427 | #endif |
524 | #endif |
428 | } |
525 | } |
429 | |
526 | |
430 | /* called on EBADF to verify fds */ |
527 | /* called on EBADF to verify fds */ |
431 | static void |
528 | static void noinline |
432 | fd_ebadf (EV_P) |
529 | fd_ebadf (EV_P) |
433 | { |
530 | { |
434 | int fd; |
531 | int fd; |
435 | |
532 | |
436 | for (fd = 0; fd < anfdmax; ++fd) |
533 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
438 | if (!fd_valid (fd) == -1 && errno == EBADF) |
535 | if (!fd_valid (fd) == -1 && errno == EBADF) |
439 | fd_kill (EV_A_ fd); |
536 | fd_kill (EV_A_ fd); |
440 | } |
537 | } |
441 | |
538 | |
442 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
539 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
443 | static void |
540 | static void noinline |
444 | fd_enomem (EV_P) |
541 | fd_enomem (EV_P) |
445 | { |
542 | { |
446 | int fd; |
543 | int fd; |
447 | |
544 | |
448 | for (fd = anfdmax; fd--; ) |
545 | for (fd = anfdmax; fd--; ) |
… | |
… | |
451 | fd_kill (EV_A_ fd); |
548 | fd_kill (EV_A_ fd); |
452 | return; |
549 | return; |
453 | } |
550 | } |
454 | } |
551 | } |
455 | |
552 | |
456 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
553 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
457 | static void |
554 | static void noinline |
458 | fd_rearm_all (EV_P) |
555 | fd_rearm_all (EV_P) |
459 | { |
556 | { |
460 | int fd; |
557 | int fd; |
461 | |
558 | |
462 | /* this should be highly optimised to not do anything but set a flag */ |
559 | /* this should be highly optimised to not do anything but set a flag */ |
… | |
… | |
468 | } |
565 | } |
469 | } |
566 | } |
470 | |
567 | |
471 | /*****************************************************************************/ |
568 | /*****************************************************************************/ |
472 | |
569 | |
473 | static void |
570 | void inline_speed |
474 | upheap (WT *heap, int k) |
571 | upheap (WT *heap, int k) |
475 | { |
572 | { |
476 | WT w = heap [k]; |
573 | WT w = heap [k]; |
477 | |
574 | |
478 | while (k && heap [k >> 1]->at > w->at) |
575 | while (k && heap [k >> 1]->at > w->at) |
… | |
… | |
485 | heap [k] = w; |
582 | heap [k] = w; |
486 | ((W)heap [k])->active = k + 1; |
583 | ((W)heap [k])->active = k + 1; |
487 | |
584 | |
488 | } |
585 | } |
489 | |
586 | |
490 | static void |
587 | void inline_speed |
491 | downheap (WT *heap, int N, int k) |
588 | downheap (WT *heap, int N, int k) |
492 | { |
589 | { |
493 | WT w = heap [k]; |
590 | WT w = heap [k]; |
494 | |
591 | |
495 | while (k < (N >> 1)) |
592 | while (k < (N >> 1)) |
… | |
… | |
509 | |
606 | |
510 | heap [k] = w; |
607 | heap [k] = w; |
511 | ((W)heap [k])->active = k + 1; |
608 | ((W)heap [k])->active = k + 1; |
512 | } |
609 | } |
513 | |
610 | |
|
|
611 | void inline_size |
|
|
612 | adjustheap (WT *heap, int N, int k) |
|
|
613 | { |
|
|
614 | upheap (heap, k); |
|
|
615 | downheap (heap, N, k); |
|
|
616 | } |
|
|
617 | |
514 | /*****************************************************************************/ |
618 | /*****************************************************************************/ |
515 | |
619 | |
516 | typedef struct |
620 | typedef struct |
517 | { |
621 | { |
518 | WL head; |
622 | WL head; |
… | |
… | |
522 | static ANSIG *signals; |
626 | static ANSIG *signals; |
523 | static int signalmax; |
627 | static int signalmax; |
524 | |
628 | |
525 | static int sigpipe [2]; |
629 | static int sigpipe [2]; |
526 | static sig_atomic_t volatile gotsig; |
630 | static sig_atomic_t volatile gotsig; |
527 | static struct ev_io sigev; |
631 | static ev_io sigev; |
528 | |
632 | |
529 | static void |
633 | void inline_size |
530 | signals_init (ANSIG *base, int count) |
634 | signals_init (ANSIG *base, int count) |
531 | { |
635 | { |
532 | while (count--) |
636 | while (count--) |
533 | { |
637 | { |
534 | base->head = 0; |
638 | base->head = 0; |
… | |
… | |
539 | } |
643 | } |
540 | |
644 | |
541 | static void |
645 | static void |
542 | sighandler (int signum) |
646 | sighandler (int signum) |
543 | { |
647 | { |
544 | #if WIN32 |
648 | #if _WIN32 |
545 | signal (signum, sighandler); |
649 | signal (signum, sighandler); |
546 | #endif |
650 | #endif |
547 | |
651 | |
548 | signals [signum - 1].gotsig = 1; |
652 | signals [signum - 1].gotsig = 1; |
549 | |
653 | |
550 | if (!gotsig) |
654 | if (!gotsig) |
551 | { |
655 | { |
552 | int old_errno = errno; |
656 | int old_errno = errno; |
553 | gotsig = 1; |
657 | gotsig = 1; |
554 | #ifdef WIN32 |
|
|
555 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
556 | #else |
|
|
557 | write (sigpipe [1], &signum, 1); |
658 | write (sigpipe [1], &signum, 1); |
558 | #endif |
|
|
559 | errno = old_errno; |
659 | errno = old_errno; |
560 | } |
660 | } |
561 | } |
661 | } |
562 | |
662 | |
563 | void |
663 | void noinline |
564 | ev_feed_signal_event (EV_P_ int signum) |
664 | ev_feed_signal_event (EV_P_ int signum) |
565 | { |
665 | { |
|
|
666 | WL w; |
|
|
667 | |
566 | #if EV_MULTIPLICITY |
668 | #if EV_MULTIPLICITY |
567 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
669 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
568 | #endif |
670 | #endif |
569 | |
671 | |
570 | --signum; |
672 | --signum; |
571 | |
673 | |
572 | if (signum < 0 || signum >= signalmax) |
674 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
577 | for (w = signals [signum].head; w; w = w->next) |
679 | for (w = signals [signum].head; w; w = w->next) |
578 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
680 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
579 | } |
681 | } |
580 | |
682 | |
581 | static void |
683 | static void |
582 | sigcb (EV_P_ struct ev_io *iow, int revents) |
684 | sigcb (EV_P_ ev_io *iow, int revents) |
583 | { |
685 | { |
584 | WL w; |
|
|
585 | int signum; |
686 | int signum; |
586 | |
687 | |
587 | #ifdef WIN32 |
|
|
588 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
589 | #else |
|
|
590 | read (sigpipe [0], &revents, 1); |
688 | read (sigpipe [0], &revents, 1); |
591 | #endif |
|
|
592 | gotsig = 0; |
689 | gotsig = 0; |
593 | |
690 | |
594 | for (signum = signalmax; signum--; ) |
691 | for (signum = signalmax; signum--; ) |
595 | if (signals [signum].gotsig) |
692 | if (signals [signum].gotsig) |
596 | sigevent (EV_A_ signum + 1); |
693 | ev_feed_signal_event (EV_A_ signum + 1); |
597 | } |
694 | } |
598 | |
695 | |
599 | static void |
696 | void inline_size |
|
|
697 | fd_intern (int fd) |
|
|
698 | { |
|
|
699 | #ifdef _WIN32 |
|
|
700 | int arg = 1; |
|
|
701 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
702 | #else |
|
|
703 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
704 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
705 | #endif |
|
|
706 | } |
|
|
707 | |
|
|
708 | static void noinline |
600 | siginit (EV_P) |
709 | siginit (EV_P) |
601 | { |
710 | { |
602 | #ifndef WIN32 |
711 | fd_intern (sigpipe [0]); |
603 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
712 | fd_intern (sigpipe [1]); |
604 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
605 | |
|
|
606 | /* rather than sort out wether we really need nb, set it */ |
|
|
607 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
608 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
609 | #endif |
|
|
610 | |
713 | |
611 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
714 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
612 | ev_io_start (EV_A_ &sigev); |
715 | ev_io_start (EV_A_ &sigev); |
613 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
716 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
614 | } |
717 | } |
615 | |
718 | |
616 | /*****************************************************************************/ |
719 | /*****************************************************************************/ |
617 | |
720 | |
618 | static struct ev_child *childs [PID_HASHSIZE]; |
721 | static ev_child *childs [EV_PID_HASHSIZE]; |
619 | |
722 | |
620 | #ifndef WIN32 |
723 | #ifndef _WIN32 |
621 | |
724 | |
622 | static struct ev_signal childev; |
725 | static ev_signal childev; |
623 | |
726 | |
624 | #ifndef WCONTINUED |
727 | void inline_speed |
625 | # define WCONTINUED 0 |
|
|
626 | #endif |
|
|
627 | |
|
|
628 | static void |
|
|
629 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
728 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
630 | { |
729 | { |
631 | struct ev_child *w; |
730 | ev_child *w; |
632 | |
731 | |
633 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
732 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
634 | if (w->pid == pid || !w->pid) |
733 | if (w->pid == pid || !w->pid) |
635 | { |
734 | { |
636 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
735 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
637 | w->rpid = pid; |
736 | w->rpid = pid; |
638 | w->rstatus = status; |
737 | w->rstatus = status; |
639 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
738 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
640 | } |
739 | } |
641 | } |
740 | } |
642 | |
741 | |
|
|
742 | #ifndef WCONTINUED |
|
|
743 | # define WCONTINUED 0 |
|
|
744 | #endif |
|
|
745 | |
643 | static void |
746 | static void |
644 | childcb (EV_P_ struct ev_signal *sw, int revents) |
747 | childcb (EV_P_ ev_signal *sw, int revents) |
645 | { |
748 | { |
646 | int pid, status; |
749 | int pid, status; |
647 | |
750 | |
|
|
751 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
648 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
752 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
649 | { |
753 | if (!WCONTINUED |
|
|
754 | || errno != EINVAL |
|
|
755 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
756 | return; |
|
|
757 | |
650 | /* make sure we are called again until all childs have been reaped */ |
758 | /* make sure we are called again until all childs have been reaped */ |
|
|
759 | /* we need to do it this way so that the callback gets called before we continue */ |
651 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
760 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
652 | |
761 | |
653 | child_reap (EV_A_ sw, pid, pid, status); |
762 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
763 | if (EV_PID_HASHSIZE > 1) |
654 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
764 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
655 | } |
|
|
656 | } |
765 | } |
657 | |
766 | |
658 | #endif |
767 | #endif |
659 | |
768 | |
660 | /*****************************************************************************/ |
769 | /*****************************************************************************/ |
661 | |
770 | |
|
|
771 | #if EV_USE_PORT |
|
|
772 | # include "ev_port.c" |
|
|
773 | #endif |
662 | #if EV_USE_KQUEUE |
774 | #if EV_USE_KQUEUE |
663 | # include "ev_kqueue.c" |
775 | # include "ev_kqueue.c" |
664 | #endif |
776 | #endif |
665 | #if EV_USE_EPOLL |
777 | #if EV_USE_EPOLL |
666 | # include "ev_epoll.c" |
778 | # include "ev_epoll.c" |
… | |
… | |
683 | { |
795 | { |
684 | return EV_VERSION_MINOR; |
796 | return EV_VERSION_MINOR; |
685 | } |
797 | } |
686 | |
798 | |
687 | /* return true if we are running with elevated privileges and should ignore env variables */ |
799 | /* return true if we are running with elevated privileges and should ignore env variables */ |
688 | static int |
800 | int inline_size |
689 | enable_secure (void) |
801 | enable_secure (void) |
690 | { |
802 | { |
691 | #ifdef WIN32 |
803 | #ifdef _WIN32 |
692 | return 0; |
804 | return 0; |
693 | #else |
805 | #else |
694 | return getuid () != geteuid () |
806 | return getuid () != geteuid () |
695 | || getgid () != getegid (); |
807 | || getgid () != getegid (); |
696 | #endif |
808 | #endif |
697 | } |
809 | } |
698 | |
810 | |
699 | int |
811 | unsigned int |
700 | ev_method (EV_P) |
812 | ev_supported_backends (void) |
701 | { |
813 | { |
702 | return method; |
814 | unsigned int flags = 0; |
|
|
815 | |
|
|
816 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
817 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
818 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
819 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
820 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
821 | |
|
|
822 | return flags; |
|
|
823 | } |
|
|
824 | |
|
|
825 | unsigned int |
|
|
826 | ev_recommended_backends (void) |
|
|
827 | { |
|
|
828 | unsigned int flags = ev_supported_backends (); |
|
|
829 | |
|
|
830 | #ifndef __NetBSD__ |
|
|
831 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
832 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
833 | flags &= ~EVBACKEND_KQUEUE; |
|
|
834 | #endif |
|
|
835 | #ifdef __APPLE__ |
|
|
836 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
837 | flags &= ~EVBACKEND_POLL; |
|
|
838 | #endif |
|
|
839 | |
|
|
840 | return flags; |
|
|
841 | } |
|
|
842 | |
|
|
843 | unsigned int |
|
|
844 | ev_embeddable_backends (void) |
|
|
845 | { |
|
|
846 | return EVBACKEND_EPOLL |
|
|
847 | | EVBACKEND_KQUEUE |
|
|
848 | | EVBACKEND_PORT; |
|
|
849 | } |
|
|
850 | |
|
|
851 | unsigned int |
|
|
852 | ev_backend (EV_P) |
|
|
853 | { |
|
|
854 | return backend; |
703 | } |
855 | } |
704 | |
856 | |
705 | static void |
857 | static void |
706 | loop_init (EV_P_ int methods) |
858 | loop_init (EV_P_ unsigned int flags) |
707 | { |
859 | { |
708 | if (!method) |
860 | if (!backend) |
709 | { |
861 | { |
710 | #if EV_USE_MONOTONIC |
862 | #if EV_USE_MONOTONIC |
711 | { |
863 | { |
712 | struct timespec ts; |
864 | struct timespec ts; |
713 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
865 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
714 | have_monotonic = 1; |
866 | have_monotonic = 1; |
715 | } |
867 | } |
716 | #endif |
868 | #endif |
717 | |
869 | |
718 | rt_now = ev_time (); |
870 | ev_rt_now = ev_time (); |
719 | mn_now = get_clock (); |
871 | mn_now = get_clock (); |
720 | now_floor = mn_now; |
872 | now_floor = mn_now; |
721 | rtmn_diff = rt_now - mn_now; |
873 | rtmn_diff = ev_rt_now - mn_now; |
722 | |
874 | |
723 | if (methods == EVMETHOD_AUTO) |
875 | if (!(flags & EVFLAG_NOENV) |
724 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
876 | && !enable_secure () |
|
|
877 | && getenv ("LIBEV_FLAGS")) |
725 | methods = atoi (getenv ("LIBEV_METHODS")); |
878 | flags = atoi (getenv ("LIBEV_FLAGS")); |
726 | else |
|
|
727 | methods = EVMETHOD_ANY; |
|
|
728 | |
879 | |
729 | method = 0; |
880 | if (!(flags & 0x0000ffffUL)) |
730 | #if EV_USE_WIN32 |
881 | flags |= ev_recommended_backends (); |
731 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
882 | |
|
|
883 | backend = 0; |
|
|
884 | #if EV_USE_PORT |
|
|
885 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
732 | #endif |
886 | #endif |
733 | #if EV_USE_KQUEUE |
887 | #if EV_USE_KQUEUE |
734 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
888 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
735 | #endif |
889 | #endif |
736 | #if EV_USE_EPOLL |
890 | #if EV_USE_EPOLL |
737 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
891 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
738 | #endif |
892 | #endif |
739 | #if EV_USE_POLL |
893 | #if EV_USE_POLL |
740 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
894 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
741 | #endif |
895 | #endif |
742 | #if EV_USE_SELECT |
896 | #if EV_USE_SELECT |
743 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
897 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
744 | #endif |
898 | #endif |
745 | |
899 | |
746 | ev_watcher_init (&sigev, sigcb); |
900 | ev_init (&sigev, sigcb); |
747 | ev_set_priority (&sigev, EV_MAXPRI); |
901 | ev_set_priority (&sigev, EV_MAXPRI); |
748 | } |
902 | } |
749 | } |
903 | } |
750 | |
904 | |
751 | void |
905 | static void |
752 | loop_destroy (EV_P) |
906 | loop_destroy (EV_P) |
753 | { |
907 | { |
754 | int i; |
908 | int i; |
755 | |
909 | |
756 | #if EV_USE_WIN32 |
910 | #if EV_USE_PORT |
757 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
911 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
758 | #endif |
912 | #endif |
759 | #if EV_USE_KQUEUE |
913 | #if EV_USE_KQUEUE |
760 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
914 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
761 | #endif |
915 | #endif |
762 | #if EV_USE_EPOLL |
916 | #if EV_USE_EPOLL |
763 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
917 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
764 | #endif |
918 | #endif |
765 | #if EV_USE_POLL |
919 | #if EV_USE_POLL |
766 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
920 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
767 | #endif |
921 | #endif |
768 | #if EV_USE_SELECT |
922 | #if EV_USE_SELECT |
769 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
923 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
770 | #endif |
924 | #endif |
771 | |
925 | |
772 | for (i = NUMPRI; i--; ) |
926 | for (i = NUMPRI; i--; ) |
773 | array_free (pending, [i]); |
927 | array_free (pending, [i]); |
774 | |
928 | |
775 | /* have to use the microsoft-never-gets-it-right macro */ |
929 | /* have to use the microsoft-never-gets-it-right macro */ |
776 | array_free_microshit (fdchange); |
930 | array_free (fdchange, EMPTY0); |
777 | array_free_microshit (timer); |
931 | array_free (timer, EMPTY0); |
778 | array_free_microshit (periodic); |
932 | #if EV_PERIODIC_ENABLE |
779 | array_free_microshit (idle); |
933 | array_free (periodic, EMPTY0); |
780 | array_free_microshit (prepare); |
934 | #endif |
781 | array_free_microshit (check); |
935 | array_free (idle, EMPTY0); |
|
|
936 | array_free (prepare, EMPTY0); |
|
|
937 | array_free (check, EMPTY0); |
782 | |
938 | |
783 | method = 0; |
939 | backend = 0; |
784 | } |
940 | } |
785 | |
941 | |
786 | static void |
942 | static void |
787 | loop_fork (EV_P) |
943 | loop_fork (EV_P) |
788 | { |
944 | { |
|
|
945 | #if EV_USE_PORT |
|
|
946 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
947 | #endif |
|
|
948 | #if EV_USE_KQUEUE |
|
|
949 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
950 | #endif |
789 | #if EV_USE_EPOLL |
951 | #if EV_USE_EPOLL |
790 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
952 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
791 | #endif |
|
|
792 | #if EV_USE_KQUEUE |
|
|
793 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
794 | #endif |
953 | #endif |
795 | |
954 | |
796 | if (ev_is_active (&sigev)) |
955 | if (ev_is_active (&sigev)) |
797 | { |
956 | { |
798 | /* default loop */ |
957 | /* default loop */ |
… | |
… | |
811 | postfork = 0; |
970 | postfork = 0; |
812 | } |
971 | } |
813 | |
972 | |
814 | #if EV_MULTIPLICITY |
973 | #if EV_MULTIPLICITY |
815 | struct ev_loop * |
974 | struct ev_loop * |
816 | ev_loop_new (int methods) |
975 | ev_loop_new (unsigned int flags) |
817 | { |
976 | { |
818 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
977 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
819 | |
978 | |
820 | memset (loop, 0, sizeof (struct ev_loop)); |
979 | memset (loop, 0, sizeof (struct ev_loop)); |
821 | |
980 | |
822 | loop_init (EV_A_ methods); |
981 | loop_init (EV_A_ flags); |
823 | |
982 | |
824 | if (ev_method (EV_A)) |
983 | if (ev_backend (EV_A)) |
825 | return loop; |
984 | return loop; |
826 | |
985 | |
827 | return 0; |
986 | return 0; |
828 | } |
987 | } |
829 | |
988 | |
… | |
… | |
841 | } |
1000 | } |
842 | |
1001 | |
843 | #endif |
1002 | #endif |
844 | |
1003 | |
845 | #if EV_MULTIPLICITY |
1004 | #if EV_MULTIPLICITY |
846 | struct ev_loop default_loop_struct; |
|
|
847 | static struct ev_loop *default_loop; |
|
|
848 | |
|
|
849 | struct ev_loop * |
1005 | struct ev_loop * |
|
|
1006 | ev_default_loop_init (unsigned int flags) |
850 | #else |
1007 | #else |
851 | static int default_loop; |
|
|
852 | |
|
|
853 | int |
1008 | int |
|
|
1009 | ev_default_loop (unsigned int flags) |
854 | #endif |
1010 | #endif |
855 | ev_default_loop (int methods) |
|
|
856 | { |
1011 | { |
857 | if (sigpipe [0] == sigpipe [1]) |
1012 | if (sigpipe [0] == sigpipe [1]) |
858 | if (pipe (sigpipe)) |
1013 | if (pipe (sigpipe)) |
859 | return 0; |
1014 | return 0; |
860 | |
1015 | |
861 | if (!default_loop) |
1016 | if (!ev_default_loop_ptr) |
862 | { |
1017 | { |
863 | #if EV_MULTIPLICITY |
1018 | #if EV_MULTIPLICITY |
864 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1019 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
865 | #else |
1020 | #else |
866 | default_loop = 1; |
1021 | ev_default_loop_ptr = 1; |
867 | #endif |
1022 | #endif |
868 | |
1023 | |
869 | loop_init (EV_A_ methods); |
1024 | loop_init (EV_A_ flags); |
870 | |
1025 | |
871 | if (ev_method (EV_A)) |
1026 | if (ev_backend (EV_A)) |
872 | { |
1027 | { |
873 | siginit (EV_A); |
1028 | siginit (EV_A); |
874 | |
1029 | |
875 | #ifndef WIN32 |
1030 | #ifndef _WIN32 |
876 | ev_signal_init (&childev, childcb, SIGCHLD); |
1031 | ev_signal_init (&childev, childcb, SIGCHLD); |
877 | ev_set_priority (&childev, EV_MAXPRI); |
1032 | ev_set_priority (&childev, EV_MAXPRI); |
878 | ev_signal_start (EV_A_ &childev); |
1033 | ev_signal_start (EV_A_ &childev); |
879 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1034 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
880 | #endif |
1035 | #endif |
881 | } |
1036 | } |
882 | else |
1037 | else |
883 | default_loop = 0; |
1038 | ev_default_loop_ptr = 0; |
884 | } |
1039 | } |
885 | |
1040 | |
886 | return default_loop; |
1041 | return ev_default_loop_ptr; |
887 | } |
1042 | } |
888 | |
1043 | |
889 | void |
1044 | void |
890 | ev_default_destroy (void) |
1045 | ev_default_destroy (void) |
891 | { |
1046 | { |
892 | #if EV_MULTIPLICITY |
1047 | #if EV_MULTIPLICITY |
893 | struct ev_loop *loop = default_loop; |
1048 | struct ev_loop *loop = ev_default_loop_ptr; |
894 | #endif |
1049 | #endif |
895 | |
1050 | |
896 | #ifndef WIN32 |
1051 | #ifndef _WIN32 |
897 | ev_ref (EV_A); /* child watcher */ |
1052 | ev_ref (EV_A); /* child watcher */ |
898 | ev_signal_stop (EV_A_ &childev); |
1053 | ev_signal_stop (EV_A_ &childev); |
899 | #endif |
1054 | #endif |
900 | |
1055 | |
901 | ev_ref (EV_A); /* signal watcher */ |
1056 | ev_ref (EV_A); /* signal watcher */ |
… | |
… | |
909 | |
1064 | |
910 | void |
1065 | void |
911 | ev_default_fork (void) |
1066 | ev_default_fork (void) |
912 | { |
1067 | { |
913 | #if EV_MULTIPLICITY |
1068 | #if EV_MULTIPLICITY |
914 | struct ev_loop *loop = default_loop; |
1069 | struct ev_loop *loop = ev_default_loop_ptr; |
915 | #endif |
1070 | #endif |
916 | |
1071 | |
917 | if (method) |
1072 | if (backend) |
918 | postfork = 1; |
1073 | postfork = 1; |
919 | } |
1074 | } |
920 | |
1075 | |
921 | /*****************************************************************************/ |
1076 | /*****************************************************************************/ |
922 | |
1077 | |
923 | static int |
1078 | int inline_size |
924 | any_pending (EV_P) |
1079 | any_pending (EV_P) |
925 | { |
1080 | { |
926 | int pri; |
1081 | int pri; |
927 | |
1082 | |
928 | for (pri = NUMPRI; pri--; ) |
1083 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
930 | return 1; |
1085 | return 1; |
931 | |
1086 | |
932 | return 0; |
1087 | return 0; |
933 | } |
1088 | } |
934 | |
1089 | |
935 | static void |
1090 | void inline_speed |
936 | call_pending (EV_P) |
1091 | call_pending (EV_P) |
937 | { |
1092 | { |
938 | int pri; |
1093 | int pri; |
939 | |
1094 | |
940 | for (pri = NUMPRI; pri--; ) |
1095 | for (pri = NUMPRI; pri--; ) |
941 | while (pendingcnt [pri]) |
1096 | while (pendingcnt [pri]) |
942 | { |
1097 | { |
943 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1098 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
944 | |
1099 | |
945 | if (p->w) |
1100 | if (expect_true (p->w)) |
946 | { |
1101 | { |
|
|
1102 | assert (("non-pending watcher on pending list", p->w->pending)); |
|
|
1103 | |
947 | p->w->pending = 0; |
1104 | p->w->pending = 0; |
948 | p->w->cb (EV_A_ p->w, p->events); |
1105 | EV_CB_INVOKE (p->w, p->events); |
949 | } |
1106 | } |
950 | } |
1107 | } |
951 | } |
1108 | } |
952 | |
1109 | |
953 | static void |
1110 | void inline_size |
954 | timers_reify (EV_P) |
1111 | timers_reify (EV_P) |
955 | { |
1112 | { |
956 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1113 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
957 | { |
1114 | { |
958 | struct ev_timer *w = timers [0]; |
1115 | ev_timer *w = timers [0]; |
959 | |
1116 | |
960 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1117 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
961 | |
1118 | |
962 | /* first reschedule or stop timer */ |
1119 | /* first reschedule or stop timer */ |
963 | if (w->repeat) |
1120 | if (w->repeat) |
964 | { |
1121 | { |
965 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1122 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1123 | |
966 | ((WT)w)->at = mn_now + w->repeat; |
1124 | ((WT)w)->at += w->repeat; |
|
|
1125 | if (((WT)w)->at < mn_now) |
|
|
1126 | ((WT)w)->at = mn_now; |
|
|
1127 | |
967 | downheap ((WT *)timers, timercnt, 0); |
1128 | downheap ((WT *)timers, timercnt, 0); |
968 | } |
1129 | } |
969 | else |
1130 | else |
970 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1131 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
971 | |
1132 | |
972 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1133 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
973 | } |
1134 | } |
974 | } |
1135 | } |
975 | |
1136 | |
976 | static void |
1137 | #if EV_PERIODIC_ENABLE |
|
|
1138 | void inline_size |
977 | periodics_reify (EV_P) |
1139 | periodics_reify (EV_P) |
978 | { |
1140 | { |
979 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1141 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
980 | { |
1142 | { |
981 | struct ev_periodic *w = periodics [0]; |
1143 | ev_periodic *w = periodics [0]; |
982 | |
1144 | |
983 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1145 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
984 | |
1146 | |
985 | /* first reschedule or stop timer */ |
1147 | /* first reschedule or stop timer */ |
986 | if (w->reschedule_cb) |
1148 | if (w->reschedule_cb) |
987 | { |
1149 | { |
988 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
1150 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
989 | |
|
|
990 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
1151 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
991 | downheap ((WT *)periodics, periodiccnt, 0); |
1152 | downheap ((WT *)periodics, periodiccnt, 0); |
992 | } |
1153 | } |
993 | else if (w->interval) |
1154 | else if (w->interval) |
994 | { |
1155 | { |
995 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1156 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
996 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1157 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
997 | downheap ((WT *)periodics, periodiccnt, 0); |
1158 | downheap ((WT *)periodics, periodiccnt, 0); |
998 | } |
1159 | } |
999 | else |
1160 | else |
1000 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1161 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1001 | |
1162 | |
1002 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1163 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1003 | } |
1164 | } |
1004 | } |
1165 | } |
1005 | |
1166 | |
1006 | static void |
1167 | static void noinline |
1007 | periodics_reschedule (EV_P) |
1168 | periodics_reschedule (EV_P) |
1008 | { |
1169 | { |
1009 | int i; |
1170 | int i; |
1010 | |
1171 | |
1011 | /* adjust periodics after time jump */ |
1172 | /* adjust periodics after time jump */ |
1012 | for (i = 0; i < periodiccnt; ++i) |
1173 | for (i = 0; i < periodiccnt; ++i) |
1013 | { |
1174 | { |
1014 | struct ev_periodic *w = periodics [i]; |
1175 | ev_periodic *w = periodics [i]; |
1015 | |
1176 | |
1016 | if (w->reschedule_cb) |
1177 | if (w->reschedule_cb) |
1017 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1178 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1018 | else if (w->interval) |
1179 | else if (w->interval) |
1019 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1180 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1020 | } |
1181 | } |
1021 | |
1182 | |
1022 | /* now rebuild the heap */ |
1183 | /* now rebuild the heap */ |
1023 | for (i = periodiccnt >> 1; i--; ) |
1184 | for (i = periodiccnt >> 1; i--; ) |
1024 | downheap ((WT *)periodics, periodiccnt, i); |
1185 | downheap ((WT *)periodics, periodiccnt, i); |
1025 | } |
1186 | } |
|
|
1187 | #endif |
1026 | |
1188 | |
1027 | inline int |
1189 | int inline_size |
1028 | time_update_monotonic (EV_P) |
1190 | time_update_monotonic (EV_P) |
1029 | { |
1191 | { |
1030 | mn_now = get_clock (); |
1192 | mn_now = get_clock (); |
1031 | |
1193 | |
1032 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1194 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1033 | { |
1195 | { |
1034 | rt_now = rtmn_diff + mn_now; |
1196 | ev_rt_now = rtmn_diff + mn_now; |
1035 | return 0; |
1197 | return 0; |
1036 | } |
1198 | } |
1037 | else |
1199 | else |
1038 | { |
1200 | { |
1039 | now_floor = mn_now; |
1201 | now_floor = mn_now; |
1040 | rt_now = ev_time (); |
1202 | ev_rt_now = ev_time (); |
1041 | return 1; |
1203 | return 1; |
1042 | } |
1204 | } |
1043 | } |
1205 | } |
1044 | |
1206 | |
1045 | static void |
1207 | void inline_size |
1046 | time_update (EV_P) |
1208 | time_update (EV_P) |
1047 | { |
1209 | { |
1048 | int i; |
1210 | int i; |
1049 | |
1211 | |
1050 | #if EV_USE_MONOTONIC |
1212 | #if EV_USE_MONOTONIC |
… | |
… | |
1052 | { |
1214 | { |
1053 | if (time_update_monotonic (EV_A)) |
1215 | if (time_update_monotonic (EV_A)) |
1054 | { |
1216 | { |
1055 | ev_tstamp odiff = rtmn_diff; |
1217 | ev_tstamp odiff = rtmn_diff; |
1056 | |
1218 | |
1057 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1219 | /* loop a few times, before making important decisions. |
|
|
1220 | * on the choice of "4": one iteration isn't enough, |
|
|
1221 | * in case we get preempted during the calls to |
|
|
1222 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1223 | * to succeed in that case, though. and looping a few more times |
|
|
1224 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1225 | * in the unlikely event of getting preempted here. |
|
|
1226 | */ |
|
|
1227 | for (i = 4; --i; ) |
1058 | { |
1228 | { |
1059 | rtmn_diff = rt_now - mn_now; |
1229 | rtmn_diff = ev_rt_now - mn_now; |
1060 | |
1230 | |
1061 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1231 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1062 | return; /* all is well */ |
1232 | return; /* all is well */ |
1063 | |
1233 | |
1064 | rt_now = ev_time (); |
1234 | ev_rt_now = ev_time (); |
1065 | mn_now = get_clock (); |
1235 | mn_now = get_clock (); |
1066 | now_floor = mn_now; |
1236 | now_floor = mn_now; |
1067 | } |
1237 | } |
1068 | |
1238 | |
|
|
1239 | # if EV_PERIODIC_ENABLE |
1069 | periodics_reschedule (EV_A); |
1240 | periodics_reschedule (EV_A); |
|
|
1241 | # endif |
1070 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1242 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1071 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1243 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1072 | } |
1244 | } |
1073 | } |
1245 | } |
1074 | else |
1246 | else |
1075 | #endif |
1247 | #endif |
1076 | { |
1248 | { |
1077 | rt_now = ev_time (); |
1249 | ev_rt_now = ev_time (); |
1078 | |
1250 | |
1079 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1251 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1080 | { |
1252 | { |
|
|
1253 | #if EV_PERIODIC_ENABLE |
1081 | periodics_reschedule (EV_A); |
1254 | periodics_reschedule (EV_A); |
|
|
1255 | #endif |
1082 | |
1256 | |
1083 | /* adjust timers. this is easy, as the offset is the same for all */ |
1257 | /* adjust timers. this is easy, as the offset is the same for all */ |
1084 | for (i = 0; i < timercnt; ++i) |
1258 | for (i = 0; i < timercnt; ++i) |
1085 | ((WT)timers [i])->at += rt_now - mn_now; |
1259 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1086 | } |
1260 | } |
1087 | |
1261 | |
1088 | mn_now = rt_now; |
1262 | mn_now = ev_rt_now; |
1089 | } |
1263 | } |
1090 | } |
1264 | } |
1091 | |
1265 | |
1092 | void |
1266 | void |
1093 | ev_ref (EV_P) |
1267 | ev_ref (EV_P) |
… | |
… | |
1104 | static int loop_done; |
1278 | static int loop_done; |
1105 | |
1279 | |
1106 | void |
1280 | void |
1107 | ev_loop (EV_P_ int flags) |
1281 | ev_loop (EV_P_ int flags) |
1108 | { |
1282 | { |
1109 | double block; |
|
|
1110 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1283 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1284 | ? EVUNLOOP_ONE |
|
|
1285 | : EVUNLOOP_CANCEL; |
1111 | |
1286 | |
1112 | do |
1287 | while (activecnt) |
1113 | { |
1288 | { |
|
|
1289 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1290 | #if EV_FORK_ENABLE |
|
|
1291 | if (expect_false (postfork)) |
|
|
1292 | if (forkcnt) |
|
|
1293 | { |
|
|
1294 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1295 | call_pending (EV_A); |
|
|
1296 | } |
|
|
1297 | #endif |
|
|
1298 | |
1114 | /* queue check watchers (and execute them) */ |
1299 | /* queue check watchers (and execute them) */ |
1115 | if (expect_false (preparecnt)) |
1300 | if (expect_false (preparecnt)) |
1116 | { |
1301 | { |
1117 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1302 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1118 | call_pending (EV_A); |
1303 | call_pending (EV_A); |
… | |
… | |
1124 | |
1309 | |
1125 | /* update fd-related kernel structures */ |
1310 | /* update fd-related kernel structures */ |
1126 | fd_reify (EV_A); |
1311 | fd_reify (EV_A); |
1127 | |
1312 | |
1128 | /* calculate blocking time */ |
1313 | /* calculate blocking time */ |
|
|
1314 | { |
|
|
1315 | double block; |
1129 | |
1316 | |
1130 | /* we only need this for !monotonic clock or timers, but as we basically |
1317 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1131 | always have timers, we just calculate it always */ |
1318 | block = 0.; /* do not block at all */ |
|
|
1319 | else |
|
|
1320 | { |
|
|
1321 | /* update time to cancel out callback processing overhead */ |
1132 | #if EV_USE_MONOTONIC |
1322 | #if EV_USE_MONOTONIC |
1133 | if (expect_true (have_monotonic)) |
1323 | if (expect_true (have_monotonic)) |
1134 | time_update_monotonic (EV_A); |
1324 | time_update_monotonic (EV_A); |
1135 | else |
1325 | else |
1136 | #endif |
1326 | #endif |
1137 | { |
1327 | { |
1138 | rt_now = ev_time (); |
1328 | ev_rt_now = ev_time (); |
1139 | mn_now = rt_now; |
1329 | mn_now = ev_rt_now; |
1140 | } |
1330 | } |
1141 | |
1331 | |
1142 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1143 | block = 0.; |
|
|
1144 | else |
|
|
1145 | { |
|
|
1146 | block = MAX_BLOCKTIME; |
1332 | block = MAX_BLOCKTIME; |
1147 | |
1333 | |
1148 | if (timercnt) |
1334 | if (timercnt) |
1149 | { |
1335 | { |
1150 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1336 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1151 | if (block > to) block = to; |
1337 | if (block > to) block = to; |
1152 | } |
1338 | } |
1153 | |
1339 | |
|
|
1340 | #if EV_PERIODIC_ENABLE |
1154 | if (periodiccnt) |
1341 | if (periodiccnt) |
1155 | { |
1342 | { |
1156 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1343 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1157 | if (block > to) block = to; |
1344 | if (block > to) block = to; |
1158 | } |
1345 | } |
|
|
1346 | #endif |
1159 | |
1347 | |
1160 | if (block < 0.) block = 0.; |
1348 | if (expect_false (block < 0.)) block = 0.; |
1161 | } |
1349 | } |
1162 | |
1350 | |
1163 | method_poll (EV_A_ block); |
1351 | backend_poll (EV_A_ block); |
|
|
1352 | } |
1164 | |
1353 | |
1165 | /* update rt_now, do magic */ |
1354 | /* update ev_rt_now, do magic */ |
1166 | time_update (EV_A); |
1355 | time_update (EV_A); |
1167 | |
1356 | |
1168 | /* queue pending timers and reschedule them */ |
1357 | /* queue pending timers and reschedule them */ |
1169 | timers_reify (EV_A); /* relative timers called last */ |
1358 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1359 | #if EV_PERIODIC_ENABLE |
1170 | periodics_reify (EV_A); /* absolute timers called first */ |
1360 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1361 | #endif |
1171 | |
1362 | |
1172 | /* queue idle watchers unless io or timers are pending */ |
1363 | /* queue idle watchers unless other events are pending */ |
1173 | if (idlecnt && !any_pending (EV_A)) |
1364 | if (idlecnt && !any_pending (EV_A)) |
1174 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1365 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1175 | |
1366 | |
1176 | /* queue check watchers, to be executed first */ |
1367 | /* queue check watchers, to be executed first */ |
1177 | if (checkcnt) |
1368 | if (expect_false (checkcnt)) |
1178 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1369 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1179 | |
1370 | |
1180 | call_pending (EV_A); |
1371 | call_pending (EV_A); |
1181 | } |
|
|
1182 | while (activecnt && !loop_done); |
|
|
1183 | |
1372 | |
1184 | if (loop_done != 2) |
1373 | if (expect_false (loop_done)) |
1185 | loop_done = 0; |
1374 | break; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | if (loop_done == EVUNLOOP_ONE) |
|
|
1378 | loop_done = EVUNLOOP_CANCEL; |
1186 | } |
1379 | } |
1187 | |
1380 | |
1188 | void |
1381 | void |
1189 | ev_unloop (EV_P_ int how) |
1382 | ev_unloop (EV_P_ int how) |
1190 | { |
1383 | { |
1191 | loop_done = how; |
1384 | loop_done = how; |
1192 | } |
1385 | } |
1193 | |
1386 | |
1194 | /*****************************************************************************/ |
1387 | /*****************************************************************************/ |
1195 | |
1388 | |
1196 | inline void |
1389 | void inline_size |
1197 | wlist_add (WL *head, WL elem) |
1390 | wlist_add (WL *head, WL elem) |
1198 | { |
1391 | { |
1199 | elem->next = *head; |
1392 | elem->next = *head; |
1200 | *head = elem; |
1393 | *head = elem; |
1201 | } |
1394 | } |
1202 | |
1395 | |
1203 | inline void |
1396 | void inline_size |
1204 | wlist_del (WL *head, WL elem) |
1397 | wlist_del (WL *head, WL elem) |
1205 | { |
1398 | { |
1206 | while (*head) |
1399 | while (*head) |
1207 | { |
1400 | { |
1208 | if (*head == elem) |
1401 | if (*head == elem) |
… | |
… | |
1213 | |
1406 | |
1214 | head = &(*head)->next; |
1407 | head = &(*head)->next; |
1215 | } |
1408 | } |
1216 | } |
1409 | } |
1217 | |
1410 | |
1218 | inline void |
1411 | void inline_speed |
1219 | ev_clear_pending (EV_P_ W w) |
1412 | ev_clear_pending (EV_P_ W w) |
1220 | { |
1413 | { |
1221 | if (w->pending) |
1414 | if (w->pending) |
1222 | { |
1415 | { |
1223 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1416 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1224 | w->pending = 0; |
1417 | w->pending = 0; |
1225 | } |
1418 | } |
1226 | } |
1419 | } |
1227 | |
1420 | |
1228 | inline void |
1421 | void inline_speed |
1229 | ev_start (EV_P_ W w, int active) |
1422 | ev_start (EV_P_ W w, int active) |
1230 | { |
1423 | { |
1231 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1424 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1232 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1425 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1233 | |
1426 | |
1234 | w->active = active; |
1427 | w->active = active; |
1235 | ev_ref (EV_A); |
1428 | ev_ref (EV_A); |
1236 | } |
1429 | } |
1237 | |
1430 | |
1238 | inline void |
1431 | void inline_size |
1239 | ev_stop (EV_P_ W w) |
1432 | ev_stop (EV_P_ W w) |
1240 | { |
1433 | { |
1241 | ev_unref (EV_A); |
1434 | ev_unref (EV_A); |
1242 | w->active = 0; |
1435 | w->active = 0; |
1243 | } |
1436 | } |
1244 | |
1437 | |
1245 | /*****************************************************************************/ |
1438 | /*****************************************************************************/ |
1246 | |
1439 | |
1247 | void |
1440 | void |
1248 | ev_io_start (EV_P_ struct ev_io *w) |
1441 | ev_io_start (EV_P_ ev_io *w) |
1249 | { |
1442 | { |
1250 | int fd = w->fd; |
1443 | int fd = w->fd; |
1251 | |
1444 | |
1252 | if (ev_is_active (w)) |
1445 | if (expect_false (ev_is_active (w))) |
1253 | return; |
1446 | return; |
1254 | |
1447 | |
1255 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1448 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1256 | |
1449 | |
1257 | ev_start (EV_A_ (W)w, 1); |
1450 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
1260 | |
1453 | |
1261 | fd_change (EV_A_ fd); |
1454 | fd_change (EV_A_ fd); |
1262 | } |
1455 | } |
1263 | |
1456 | |
1264 | void |
1457 | void |
1265 | ev_io_stop (EV_P_ struct ev_io *w) |
1458 | ev_io_stop (EV_P_ ev_io *w) |
1266 | { |
1459 | { |
1267 | ev_clear_pending (EV_A_ (W)w); |
1460 | ev_clear_pending (EV_A_ (W)w); |
1268 | if (!ev_is_active (w)) |
1461 | if (expect_false (!ev_is_active (w))) |
1269 | return; |
1462 | return; |
|
|
1463 | |
|
|
1464 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1270 | |
1465 | |
1271 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1466 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1272 | ev_stop (EV_A_ (W)w); |
1467 | ev_stop (EV_A_ (W)w); |
1273 | |
1468 | |
1274 | fd_change (EV_A_ w->fd); |
1469 | fd_change (EV_A_ w->fd); |
1275 | } |
1470 | } |
1276 | |
1471 | |
1277 | void |
1472 | void |
1278 | ev_timer_start (EV_P_ struct ev_timer *w) |
1473 | ev_timer_start (EV_P_ ev_timer *w) |
1279 | { |
1474 | { |
1280 | if (ev_is_active (w)) |
1475 | if (expect_false (ev_is_active (w))) |
1281 | return; |
1476 | return; |
1282 | |
1477 | |
1283 | ((WT)w)->at += mn_now; |
1478 | ((WT)w)->at += mn_now; |
1284 | |
1479 | |
1285 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1480 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1286 | |
1481 | |
1287 | ev_start (EV_A_ (W)w, ++timercnt); |
1482 | ev_start (EV_A_ (W)w, ++timercnt); |
1288 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1483 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1289 | timers [timercnt - 1] = w; |
1484 | timers [timercnt - 1] = w; |
1290 | upheap ((WT *)timers, timercnt - 1); |
1485 | upheap ((WT *)timers, timercnt - 1); |
1291 | |
1486 | |
1292 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1487 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1293 | } |
1488 | } |
1294 | |
1489 | |
1295 | void |
1490 | void |
1296 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1491 | ev_timer_stop (EV_P_ ev_timer *w) |
1297 | { |
1492 | { |
1298 | ev_clear_pending (EV_A_ (W)w); |
1493 | ev_clear_pending (EV_A_ (W)w); |
1299 | if (!ev_is_active (w)) |
1494 | if (expect_false (!ev_is_active (w))) |
1300 | return; |
1495 | return; |
1301 | |
1496 | |
1302 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1497 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1303 | |
1498 | |
1304 | if (((W)w)->active < timercnt--) |
1499 | if (expect_true (((W)w)->active < timercnt--)) |
1305 | { |
1500 | { |
1306 | timers [((W)w)->active - 1] = timers [timercnt]; |
1501 | timers [((W)w)->active - 1] = timers [timercnt]; |
1307 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1502 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1308 | } |
1503 | } |
1309 | |
1504 | |
1310 | ((WT)w)->at = w->repeat; |
1505 | ((WT)w)->at -= mn_now; |
1311 | |
1506 | |
1312 | ev_stop (EV_A_ (W)w); |
1507 | ev_stop (EV_A_ (W)w); |
1313 | } |
1508 | } |
1314 | |
1509 | |
1315 | void |
1510 | void |
1316 | ev_timer_again (EV_P_ struct ev_timer *w) |
1511 | ev_timer_again (EV_P_ ev_timer *w) |
1317 | { |
1512 | { |
1318 | if (ev_is_active (w)) |
1513 | if (ev_is_active (w)) |
1319 | { |
1514 | { |
1320 | if (w->repeat) |
1515 | if (w->repeat) |
1321 | { |
1516 | { |
1322 | ((WT)w)->at = mn_now + w->repeat; |
1517 | ((WT)w)->at = mn_now + w->repeat; |
1323 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1518 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1324 | } |
1519 | } |
1325 | else |
1520 | else |
1326 | ev_timer_stop (EV_A_ w); |
1521 | ev_timer_stop (EV_A_ w); |
1327 | } |
1522 | } |
1328 | else if (w->repeat) |
1523 | else if (w->repeat) |
|
|
1524 | { |
|
|
1525 | w->at = w->repeat; |
1329 | ev_timer_start (EV_A_ w); |
1526 | ev_timer_start (EV_A_ w); |
|
|
1527 | } |
1330 | } |
1528 | } |
1331 | |
1529 | |
|
|
1530 | #if EV_PERIODIC_ENABLE |
1332 | void |
1531 | void |
1333 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1532 | ev_periodic_start (EV_P_ ev_periodic *w) |
1334 | { |
1533 | { |
1335 | if (ev_is_active (w)) |
1534 | if (expect_false (ev_is_active (w))) |
1336 | return; |
1535 | return; |
1337 | |
1536 | |
1338 | if (w->reschedule_cb) |
1537 | if (w->reschedule_cb) |
1339 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1538 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1340 | else if (w->interval) |
1539 | else if (w->interval) |
1341 | { |
1540 | { |
1342 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1541 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1343 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1542 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1344 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1543 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1345 | } |
1544 | } |
1346 | |
1545 | |
1347 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1546 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1348 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1547 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1349 | periodics [periodiccnt - 1] = w; |
1548 | periodics [periodiccnt - 1] = w; |
1350 | upheap ((WT *)periodics, periodiccnt - 1); |
1549 | upheap ((WT *)periodics, periodiccnt - 1); |
1351 | |
1550 | |
1352 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1551 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1353 | } |
1552 | } |
1354 | |
1553 | |
1355 | void |
1554 | void |
1356 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1555 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1357 | { |
1556 | { |
1358 | ev_clear_pending (EV_A_ (W)w); |
1557 | ev_clear_pending (EV_A_ (W)w); |
1359 | if (!ev_is_active (w)) |
1558 | if (expect_false (!ev_is_active (w))) |
1360 | return; |
1559 | return; |
1361 | |
1560 | |
1362 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1561 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1363 | |
1562 | |
1364 | if (((W)w)->active < periodiccnt--) |
1563 | if (expect_true (((W)w)->active < periodiccnt--)) |
1365 | { |
1564 | { |
1366 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1565 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1367 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1566 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1368 | } |
1567 | } |
1369 | |
1568 | |
1370 | ev_stop (EV_A_ (W)w); |
1569 | ev_stop (EV_A_ (W)w); |
1371 | } |
1570 | } |
1372 | |
1571 | |
1373 | void |
1572 | void |
1374 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1573 | ev_periodic_again (EV_P_ ev_periodic *w) |
1375 | { |
1574 | { |
|
|
1575 | /* TODO: use adjustheap and recalculation */ |
1376 | ev_periodic_stop (EV_A_ w); |
1576 | ev_periodic_stop (EV_A_ w); |
1377 | ev_periodic_start (EV_A_ w); |
1577 | ev_periodic_start (EV_A_ w); |
1378 | } |
1578 | } |
1379 | |
1579 | #endif |
1380 | void |
|
|
1381 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1382 | { |
|
|
1383 | if (ev_is_active (w)) |
|
|
1384 | return; |
|
|
1385 | |
|
|
1386 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1387 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1388 | idles [idlecnt - 1] = w; |
|
|
1389 | } |
|
|
1390 | |
|
|
1391 | void |
|
|
1392 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1393 | { |
|
|
1394 | ev_clear_pending (EV_A_ (W)w); |
|
|
1395 | if (ev_is_active (w)) |
|
|
1396 | return; |
|
|
1397 | |
|
|
1398 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1399 | ev_stop (EV_A_ (W)w); |
|
|
1400 | } |
|
|
1401 | |
|
|
1402 | void |
|
|
1403 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1404 | { |
|
|
1405 | if (ev_is_active (w)) |
|
|
1406 | return; |
|
|
1407 | |
|
|
1408 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1409 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1410 | prepares [preparecnt - 1] = w; |
|
|
1411 | } |
|
|
1412 | |
|
|
1413 | void |
|
|
1414 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1415 | { |
|
|
1416 | ev_clear_pending (EV_A_ (W)w); |
|
|
1417 | if (ev_is_active (w)) |
|
|
1418 | return; |
|
|
1419 | |
|
|
1420 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1421 | ev_stop (EV_A_ (W)w); |
|
|
1422 | } |
|
|
1423 | |
|
|
1424 | void |
|
|
1425 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1426 | { |
|
|
1427 | if (ev_is_active (w)) |
|
|
1428 | return; |
|
|
1429 | |
|
|
1430 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1431 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1432 | checks [checkcnt - 1] = w; |
|
|
1433 | } |
|
|
1434 | |
|
|
1435 | void |
|
|
1436 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1437 | { |
|
|
1438 | ev_clear_pending (EV_A_ (W)w); |
|
|
1439 | if (ev_is_active (w)) |
|
|
1440 | return; |
|
|
1441 | |
|
|
1442 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1443 | ev_stop (EV_A_ (W)w); |
|
|
1444 | } |
|
|
1445 | |
1580 | |
1446 | #ifndef SA_RESTART |
1581 | #ifndef SA_RESTART |
1447 | # define SA_RESTART 0 |
1582 | # define SA_RESTART 0 |
1448 | #endif |
1583 | #endif |
1449 | |
1584 | |
1450 | void |
1585 | void |
1451 | ev_signal_start (EV_P_ struct ev_signal *w) |
1586 | ev_signal_start (EV_P_ ev_signal *w) |
1452 | { |
1587 | { |
1453 | #if EV_MULTIPLICITY |
1588 | #if EV_MULTIPLICITY |
1454 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1589 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1455 | #endif |
1590 | #endif |
1456 | if (ev_is_active (w)) |
1591 | if (expect_false (ev_is_active (w))) |
1457 | return; |
1592 | return; |
1458 | |
1593 | |
1459 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1594 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1460 | |
1595 | |
1461 | ev_start (EV_A_ (W)w, 1); |
1596 | ev_start (EV_A_ (W)w, 1); |
1462 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1597 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1463 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1598 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1464 | |
1599 | |
1465 | if (!((WL)w)->next) |
1600 | if (!((WL)w)->next) |
1466 | { |
1601 | { |
1467 | #if WIN32 |
1602 | #if _WIN32 |
1468 | signal (w->signum, sighandler); |
1603 | signal (w->signum, sighandler); |
1469 | #else |
1604 | #else |
1470 | struct sigaction sa; |
1605 | struct sigaction sa; |
1471 | sa.sa_handler = sighandler; |
1606 | sa.sa_handler = sighandler; |
1472 | sigfillset (&sa.sa_mask); |
1607 | sigfillset (&sa.sa_mask); |
… | |
… | |
1475 | #endif |
1610 | #endif |
1476 | } |
1611 | } |
1477 | } |
1612 | } |
1478 | |
1613 | |
1479 | void |
1614 | void |
1480 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1615 | ev_signal_stop (EV_P_ ev_signal *w) |
1481 | { |
1616 | { |
1482 | ev_clear_pending (EV_A_ (W)w); |
1617 | ev_clear_pending (EV_A_ (W)w); |
1483 | if (!ev_is_active (w)) |
1618 | if (expect_false (!ev_is_active (w))) |
1484 | return; |
1619 | return; |
1485 | |
1620 | |
1486 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1621 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1487 | ev_stop (EV_A_ (W)w); |
1622 | ev_stop (EV_A_ (W)w); |
1488 | |
1623 | |
1489 | if (!signals [w->signum - 1].head) |
1624 | if (!signals [w->signum - 1].head) |
1490 | signal (w->signum, SIG_DFL); |
1625 | signal (w->signum, SIG_DFL); |
1491 | } |
1626 | } |
1492 | |
1627 | |
1493 | void |
1628 | void |
1494 | ev_child_start (EV_P_ struct ev_child *w) |
1629 | ev_child_start (EV_P_ ev_child *w) |
1495 | { |
1630 | { |
1496 | #if EV_MULTIPLICITY |
1631 | #if EV_MULTIPLICITY |
1497 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1632 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1498 | #endif |
1633 | #endif |
1499 | if (ev_is_active (w)) |
1634 | if (expect_false (ev_is_active (w))) |
1500 | return; |
1635 | return; |
1501 | |
1636 | |
1502 | ev_start (EV_A_ (W)w, 1); |
1637 | ev_start (EV_A_ (W)w, 1); |
1503 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1638 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1504 | } |
1639 | } |
1505 | |
1640 | |
1506 | void |
1641 | void |
1507 | ev_child_stop (EV_P_ struct ev_child *w) |
1642 | ev_child_stop (EV_P_ ev_child *w) |
1508 | { |
1643 | { |
1509 | ev_clear_pending (EV_A_ (W)w); |
1644 | ev_clear_pending (EV_A_ (W)w); |
1510 | if (ev_is_active (w)) |
1645 | if (expect_false (!ev_is_active (w))) |
1511 | return; |
1646 | return; |
1512 | |
1647 | |
1513 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1648 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1514 | ev_stop (EV_A_ (W)w); |
1649 | ev_stop (EV_A_ (W)w); |
1515 | } |
1650 | } |
1516 | |
1651 | |
|
|
1652 | #if EV_STAT_ENABLE |
|
|
1653 | |
|
|
1654 | # ifdef _WIN32 |
|
|
1655 | # undef lstat |
|
|
1656 | # define lstat(a,b) _stati64 (a,b) |
|
|
1657 | # endif |
|
|
1658 | |
|
|
1659 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1660 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1661 | |
|
|
1662 | void |
|
|
1663 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1664 | { |
|
|
1665 | if (lstat (w->path, &w->attr) < 0) |
|
|
1666 | w->attr.st_nlink = 0; |
|
|
1667 | else if (!w->attr.st_nlink) |
|
|
1668 | w->attr.st_nlink = 1; |
|
|
1669 | } |
|
|
1670 | |
|
|
1671 | static void |
|
|
1672 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1673 | { |
|
|
1674 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1675 | |
|
|
1676 | /* we copy this here each the time so that */ |
|
|
1677 | /* prev has the old value when the callback gets invoked */ |
|
|
1678 | w->prev = w->attr; |
|
|
1679 | ev_stat_stat (EV_A_ w); |
|
|
1680 | |
|
|
1681 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1682 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1683 | } |
|
|
1684 | |
|
|
1685 | void |
|
|
1686 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1687 | { |
|
|
1688 | if (expect_false (ev_is_active (w))) |
|
|
1689 | return; |
|
|
1690 | |
|
|
1691 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1692 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1693 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1694 | |
|
|
1695 | ev_stat_stat (EV_A_ w); |
|
|
1696 | |
|
|
1697 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
1698 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1699 | |
|
|
1700 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1701 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1702 | ev_timer_start (EV_A_ &w->timer); |
|
|
1703 | |
|
|
1704 | ev_start (EV_A_ (W)w, 1); |
|
|
1705 | } |
|
|
1706 | |
|
|
1707 | void |
|
|
1708 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1709 | { |
|
|
1710 | ev_clear_pending (EV_A_ (W)w); |
|
|
1711 | if (expect_false (!ev_is_active (w))) |
|
|
1712 | return; |
|
|
1713 | |
|
|
1714 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1715 | |
|
|
1716 | ev_stop (EV_A_ (W)w); |
|
|
1717 | } |
|
|
1718 | #endif |
|
|
1719 | |
|
|
1720 | void |
|
|
1721 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
1722 | { |
|
|
1723 | if (expect_false (ev_is_active (w))) |
|
|
1724 | return; |
|
|
1725 | |
|
|
1726 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1727 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1728 | idles [idlecnt - 1] = w; |
|
|
1729 | } |
|
|
1730 | |
|
|
1731 | void |
|
|
1732 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
1733 | { |
|
|
1734 | ev_clear_pending (EV_A_ (W)w); |
|
|
1735 | if (expect_false (!ev_is_active (w))) |
|
|
1736 | return; |
|
|
1737 | |
|
|
1738 | { |
|
|
1739 | int active = ((W)w)->active; |
|
|
1740 | idles [active - 1] = idles [--idlecnt]; |
|
|
1741 | ((W)idles [active - 1])->active = active; |
|
|
1742 | } |
|
|
1743 | |
|
|
1744 | ev_stop (EV_A_ (W)w); |
|
|
1745 | } |
|
|
1746 | |
|
|
1747 | void |
|
|
1748 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
1749 | { |
|
|
1750 | if (expect_false (ev_is_active (w))) |
|
|
1751 | return; |
|
|
1752 | |
|
|
1753 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1754 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1755 | prepares [preparecnt - 1] = w; |
|
|
1756 | } |
|
|
1757 | |
|
|
1758 | void |
|
|
1759 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
1760 | { |
|
|
1761 | ev_clear_pending (EV_A_ (W)w); |
|
|
1762 | if (expect_false (!ev_is_active (w))) |
|
|
1763 | return; |
|
|
1764 | |
|
|
1765 | { |
|
|
1766 | int active = ((W)w)->active; |
|
|
1767 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
1768 | ((W)prepares [active - 1])->active = active; |
|
|
1769 | } |
|
|
1770 | |
|
|
1771 | ev_stop (EV_A_ (W)w); |
|
|
1772 | } |
|
|
1773 | |
|
|
1774 | void |
|
|
1775 | ev_check_start (EV_P_ ev_check *w) |
|
|
1776 | { |
|
|
1777 | if (expect_false (ev_is_active (w))) |
|
|
1778 | return; |
|
|
1779 | |
|
|
1780 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1781 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1782 | checks [checkcnt - 1] = w; |
|
|
1783 | } |
|
|
1784 | |
|
|
1785 | void |
|
|
1786 | ev_check_stop (EV_P_ ev_check *w) |
|
|
1787 | { |
|
|
1788 | ev_clear_pending (EV_A_ (W)w); |
|
|
1789 | if (expect_false (!ev_is_active (w))) |
|
|
1790 | return; |
|
|
1791 | |
|
|
1792 | { |
|
|
1793 | int active = ((W)w)->active; |
|
|
1794 | checks [active - 1] = checks [--checkcnt]; |
|
|
1795 | ((W)checks [active - 1])->active = active; |
|
|
1796 | } |
|
|
1797 | |
|
|
1798 | ev_stop (EV_A_ (W)w); |
|
|
1799 | } |
|
|
1800 | |
|
|
1801 | #if EV_EMBED_ENABLE |
|
|
1802 | void noinline |
|
|
1803 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
1804 | { |
|
|
1805 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void |
|
|
1809 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
1810 | { |
|
|
1811 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
1812 | |
|
|
1813 | if (ev_cb (w)) |
|
|
1814 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
1815 | else |
|
|
1816 | ev_embed_sweep (loop, w); |
|
|
1817 | } |
|
|
1818 | |
|
|
1819 | void |
|
|
1820 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
1821 | { |
|
|
1822 | if (expect_false (ev_is_active (w))) |
|
|
1823 | return; |
|
|
1824 | |
|
|
1825 | { |
|
|
1826 | struct ev_loop *loop = w->loop; |
|
|
1827 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
1828 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1829 | } |
|
|
1830 | |
|
|
1831 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1832 | ev_io_start (EV_A_ &w->io); |
|
|
1833 | |
|
|
1834 | ev_start (EV_A_ (W)w, 1); |
|
|
1835 | } |
|
|
1836 | |
|
|
1837 | void |
|
|
1838 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
1839 | { |
|
|
1840 | ev_clear_pending (EV_A_ (W)w); |
|
|
1841 | if (expect_false (!ev_is_active (w))) |
|
|
1842 | return; |
|
|
1843 | |
|
|
1844 | ev_io_stop (EV_A_ &w->io); |
|
|
1845 | |
|
|
1846 | ev_stop (EV_A_ (W)w); |
|
|
1847 | } |
|
|
1848 | #endif |
|
|
1849 | |
|
|
1850 | #if EV_FORK_ENABLE |
|
|
1851 | void |
|
|
1852 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
1853 | { |
|
|
1854 | if (expect_false (ev_is_active (w))) |
|
|
1855 | return; |
|
|
1856 | |
|
|
1857 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
1858 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
1859 | forks [forkcnt - 1] = w; |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | void |
|
|
1863 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
1864 | { |
|
|
1865 | ev_clear_pending (EV_A_ (W)w); |
|
|
1866 | if (expect_false (!ev_is_active (w))) |
|
|
1867 | return; |
|
|
1868 | |
|
|
1869 | { |
|
|
1870 | int active = ((W)w)->active; |
|
|
1871 | forks [active - 1] = forks [--forkcnt]; |
|
|
1872 | ((W)forks [active - 1])->active = active; |
|
|
1873 | } |
|
|
1874 | |
|
|
1875 | ev_stop (EV_A_ (W)w); |
|
|
1876 | } |
|
|
1877 | #endif |
|
|
1878 | |
1517 | /*****************************************************************************/ |
1879 | /*****************************************************************************/ |
1518 | |
1880 | |
1519 | struct ev_once |
1881 | struct ev_once |
1520 | { |
1882 | { |
1521 | struct ev_io io; |
1883 | ev_io io; |
1522 | struct ev_timer to; |
1884 | ev_timer to; |
1523 | void (*cb)(int revents, void *arg); |
1885 | void (*cb)(int revents, void *arg); |
1524 | void *arg; |
1886 | void *arg; |
1525 | }; |
1887 | }; |
1526 | |
1888 | |
1527 | static void |
1889 | static void |
… | |
… | |
1536 | |
1898 | |
1537 | cb (revents, arg); |
1899 | cb (revents, arg); |
1538 | } |
1900 | } |
1539 | |
1901 | |
1540 | static void |
1902 | static void |
1541 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1903 | once_cb_io (EV_P_ ev_io *w, int revents) |
1542 | { |
1904 | { |
1543 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1905 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1544 | } |
1906 | } |
1545 | |
1907 | |
1546 | static void |
1908 | static void |
1547 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1909 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1548 | { |
1910 | { |
1549 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1911 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1550 | } |
1912 | } |
1551 | |
1913 | |
1552 | void |
1914 | void |
1553 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1915 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1554 | { |
1916 | { |
1555 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1917 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1556 | |
1918 | |
1557 | if (!once) |
1919 | if (expect_false (!once)) |
|
|
1920 | { |
1558 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1921 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1559 | else |
1922 | return; |
1560 | { |
1923 | } |
|
|
1924 | |
1561 | once->cb = cb; |
1925 | once->cb = cb; |
1562 | once->arg = arg; |
1926 | once->arg = arg; |
1563 | |
1927 | |
1564 | ev_watcher_init (&once->io, once_cb_io); |
1928 | ev_init (&once->io, once_cb_io); |
1565 | if (fd >= 0) |
1929 | if (fd >= 0) |
1566 | { |
1930 | { |
1567 | ev_io_set (&once->io, fd, events); |
1931 | ev_io_set (&once->io, fd, events); |
1568 | ev_io_start (EV_A_ &once->io); |
1932 | ev_io_start (EV_A_ &once->io); |
1569 | } |
1933 | } |
1570 | |
1934 | |
1571 | ev_watcher_init (&once->to, once_cb_to); |
1935 | ev_init (&once->to, once_cb_to); |
1572 | if (timeout >= 0.) |
1936 | if (timeout >= 0.) |
1573 | { |
1937 | { |
1574 | ev_timer_set (&once->to, timeout, 0.); |
1938 | ev_timer_set (&once->to, timeout, 0.); |
1575 | ev_timer_start (EV_A_ &once->to); |
1939 | ev_timer_start (EV_A_ &once->to); |
1576 | } |
|
|
1577 | } |
1940 | } |
1578 | } |
1941 | } |
1579 | |
1942 | |
|
|
1943 | #ifdef __cplusplus |
|
|
1944 | } |
|
|
1945 | #endif |
|
|
1946 | |