… | |
… | |
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 |
|
|
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 |
|
|
103 | # else |
|
|
104 | # define EV_USE_WIN32 0 |
|
|
105 | # endif |
|
|
106 | #endif |
|
|
107 | |
|
|
108 | #ifndef EV_USE_REALTIME |
157 | #ifndef EV_USE_PORT |
109 | # define EV_USE_REALTIME 1 |
158 | # define EV_USE_PORT 0 |
110 | #endif |
159 | #endif |
111 | |
160 | |
112 | /**/ |
161 | /**/ |
113 | |
162 | |
114 | #ifndef CLOCK_MONOTONIC |
163 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
119 | #ifndef CLOCK_REALTIME |
168 | #ifndef CLOCK_REALTIME |
120 | # undef EV_USE_REALTIME |
169 | # undef EV_USE_REALTIME |
121 | # define EV_USE_REALTIME 0 |
170 | # define EV_USE_REALTIME 0 |
122 | #endif |
171 | #endif |
123 | |
172 | |
|
|
173 | #if EV_SELECT_IS_WINSOCKET |
|
|
174 | # include <winsock.h> |
|
|
175 | #endif |
|
|
176 | |
124 | /**/ |
177 | /**/ |
125 | |
178 | |
126 | #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) */ |
127 | #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) */ |
128 | #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 */ |
129 | /*#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 */ |
130 | |
183 | |
131 | #ifdef EV_H |
184 | #ifdef EV_H |
132 | # include EV_H |
185 | # include EV_H |
133 | #else |
186 | #else |
134 | # include "ev.h" |
187 | # include "ev.h" |
135 | #endif |
188 | #endif |
136 | |
189 | |
137 | #if __GNUC__ >= 3 |
190 | #if __GNUC__ >= 3 |
138 | # 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 |
139 | # 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 |
140 | #else |
200 | #else |
141 | # define expect(expr,value) (expr) |
201 | # define expect(expr,value) (expr) |
142 | # define inline static |
202 | # define inline_speed static |
|
|
203 | # define inline_minimal static |
|
|
204 | # define noinline |
143 | #endif |
205 | #endif |
144 | |
206 | |
145 | #define expect_false(expr) expect ((expr) != 0, 0) |
207 | #define expect_false(expr) expect ((expr) != 0, 0) |
146 | #define expect_true(expr) expect ((expr) != 0, 1) |
208 | #define expect_true(expr) expect ((expr) != 0, 1) |
147 | |
209 | |
148 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
210 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
149 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
211 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
150 | |
212 | |
|
|
213 | #define EMPTY0 /* required for microsofts broken pseudo-c compiler */ |
|
|
214 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
215 | |
151 | typedef struct ev_watcher *W; |
216 | typedef ev_watcher *W; |
152 | typedef struct ev_watcher_list *WL; |
217 | typedef ev_watcher_list *WL; |
153 | typedef struct ev_watcher_time *WT; |
218 | typedef ev_watcher_time *WT; |
154 | |
219 | |
155 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
220 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
156 | |
221 | |
|
|
222 | #ifdef _WIN32 |
157 | #include "ev_win32.c" |
223 | # include "ev_win32.c" |
|
|
224 | #endif |
158 | |
225 | |
159 | /*****************************************************************************/ |
226 | /*****************************************************************************/ |
160 | |
227 | |
161 | static void (*syserr_cb)(const char *msg); |
228 | static void (*syserr_cb)(const char *msg); |
162 | |
229 | |
|
|
230 | void |
163 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
231 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
164 | { |
232 | { |
165 | syserr_cb = cb; |
233 | syserr_cb = cb; |
166 | } |
234 | } |
167 | |
235 | |
168 | static void |
236 | static void noinline |
169 | syserr (const char *msg) |
237 | syserr (const char *msg) |
170 | { |
238 | { |
171 | if (!msg) |
239 | if (!msg) |
172 | msg = "(libev) system error"; |
240 | msg = "(libev) system error"; |
173 | |
241 | |
… | |
… | |
180 | } |
248 | } |
181 | } |
249 | } |
182 | |
250 | |
183 | static void *(*alloc)(void *ptr, long size); |
251 | static void *(*alloc)(void *ptr, long size); |
184 | |
252 | |
|
|
253 | void |
185 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
254 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
186 | { |
255 | { |
187 | alloc = cb; |
256 | alloc = cb; |
188 | } |
257 | } |
189 | |
258 | |
190 | static void * |
259 | static void * |
… | |
… | |
209 | typedef struct |
278 | typedef struct |
210 | { |
279 | { |
211 | WL head; |
280 | WL head; |
212 | unsigned char events; |
281 | unsigned char events; |
213 | unsigned char reify; |
282 | unsigned char reify; |
|
|
283 | #if EV_SELECT_IS_WINSOCKET |
|
|
284 | SOCKET handle; |
|
|
285 | #endif |
214 | } ANFD; |
286 | } ANFD; |
215 | |
287 | |
216 | typedef struct |
288 | typedef struct |
217 | { |
289 | { |
218 | W w; |
290 | W w; |
… | |
… | |
221 | |
293 | |
222 | #if EV_MULTIPLICITY |
294 | #if EV_MULTIPLICITY |
223 | |
295 | |
224 | struct ev_loop |
296 | struct ev_loop |
225 | { |
297 | { |
|
|
298 | ev_tstamp ev_rt_now; |
|
|
299 | #define ev_rt_now ((loop)->ev_rt_now) |
226 | #define VAR(name,decl) decl; |
300 | #define VAR(name,decl) decl; |
227 | #include "ev_vars.h" |
301 | #include "ev_vars.h" |
228 | #undef VAR |
302 | #undef VAR |
229 | }; |
303 | }; |
230 | #include "ev_wrap.h" |
304 | #include "ev_wrap.h" |
231 | |
305 | |
232 | struct ev_loop default_loop_struct; |
306 | static struct ev_loop default_loop_struct; |
233 | static struct ev_loop *default_loop; |
307 | struct ev_loop *ev_default_loop_ptr; |
234 | |
308 | |
235 | #else |
309 | #else |
236 | |
310 | |
|
|
311 | ev_tstamp ev_rt_now; |
237 | #define VAR(name,decl) static decl; |
312 | #define VAR(name,decl) static decl; |
238 | #include "ev_vars.h" |
313 | #include "ev_vars.h" |
239 | #undef VAR |
314 | #undef VAR |
240 | |
315 | |
241 | static int default_loop; |
316 | static int ev_default_loop_ptr; |
242 | |
317 | |
243 | #endif |
318 | #endif |
244 | |
319 | |
245 | /*****************************************************************************/ |
320 | /*****************************************************************************/ |
246 | |
321 | |
247 | inline ev_tstamp |
322 | ev_tstamp |
248 | ev_time (void) |
323 | ev_time (void) |
249 | { |
324 | { |
250 | #if EV_USE_REALTIME |
325 | #if EV_USE_REALTIME |
251 | struct timespec ts; |
326 | struct timespec ts; |
252 | clock_gettime (CLOCK_REALTIME, &ts); |
327 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
256 | gettimeofday (&tv, 0); |
331 | gettimeofday (&tv, 0); |
257 | return tv.tv_sec + tv.tv_usec * 1e-6; |
332 | return tv.tv_sec + tv.tv_usec * 1e-6; |
258 | #endif |
333 | #endif |
259 | } |
334 | } |
260 | |
335 | |
261 | inline ev_tstamp |
336 | ev_tstamp inline_size |
262 | get_clock (void) |
337 | get_clock (void) |
263 | { |
338 | { |
264 | #if EV_USE_MONOTONIC |
339 | #if EV_USE_MONOTONIC |
265 | if (expect_true (have_monotonic)) |
340 | if (expect_true (have_monotonic)) |
266 | { |
341 | { |
… | |
… | |
271 | #endif |
346 | #endif |
272 | |
347 | |
273 | return ev_time (); |
348 | return ev_time (); |
274 | } |
349 | } |
275 | |
350 | |
|
|
351 | #if EV_MULTIPLICITY |
276 | ev_tstamp |
352 | ev_tstamp |
277 | ev_now (EV_P) |
353 | ev_now (EV_P) |
278 | { |
354 | { |
279 | return rt_now; |
355 | return ev_rt_now; |
280 | } |
356 | } |
|
|
357 | #endif |
281 | |
358 | |
282 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
359 | #define array_roundsize(type,n) (((n) | 4) & ~3) |
283 | |
360 | |
284 | #define array_needsize(type,base,cur,cnt,init) \ |
361 | #define array_needsize(type,base,cur,cnt,init) \ |
285 | if (expect_false ((cnt) > cur)) \ |
362 | if (expect_false ((cnt) > cur)) \ |
286 | { \ |
363 | { \ |
287 | int newcnt = cur; \ |
364 | int newcnt = cur; \ |
… | |
… | |
302 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
379 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
303 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
380 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
304 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
381 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
305 | } |
382 | } |
306 | |
383 | |
307 | /* microsoft's pseudo-c is quite far from C as the rest of the world and the standard knows it */ |
|
|
308 | /* bringing us everlasting joy in form of stupid extra macros that are not required in C */ |
|
|
309 | #define array_free_microshit(stem) \ |
|
|
310 | ev_free (stem ## s); stem ## cnt = stem ## max = 0; |
|
|
311 | |
|
|
312 | #define array_free(stem, idx) \ |
384 | #define array_free(stem, idx) \ |
313 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
385 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
314 | |
386 | |
315 | /*****************************************************************************/ |
387 | /*****************************************************************************/ |
316 | |
388 | |
317 | 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 |
318 | anfds_init (ANFD *base, int count) |
418 | anfds_init (ANFD *base, int count) |
319 | { |
419 | { |
320 | while (count--) |
420 | while (count--) |
321 | { |
421 | { |
322 | base->head = 0; |
422 | base->head = 0; |
… | |
… | |
325 | |
425 | |
326 | ++base; |
426 | ++base; |
327 | } |
427 | } |
328 | } |
428 | } |
329 | |
429 | |
330 | void |
430 | void inline_speed |
331 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
332 | { |
|
|
333 | W w_ = (W)w; |
|
|
334 | |
|
|
335 | if (w_->pending) |
|
|
336 | { |
|
|
337 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
|
|
338 | return; |
|
|
339 | } |
|
|
340 | |
|
|
341 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
|
|
342 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
|
|
343 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
|
|
344 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
|
|
345 | } |
|
|
346 | |
|
|
347 | static void |
|
|
348 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
349 | { |
|
|
350 | int i; |
|
|
351 | |
|
|
352 | for (i = 0; i < eventcnt; ++i) |
|
|
353 | ev_feed_event (EV_A_ events [i], type); |
|
|
354 | } |
|
|
355 | |
|
|
356 | inline void |
|
|
357 | fd_event (EV_P_ int fd, int revents) |
431 | fd_event (EV_P_ int fd, int revents) |
358 | { |
432 | { |
359 | ANFD *anfd = anfds + fd; |
433 | ANFD *anfd = anfds + fd; |
360 | struct ev_io *w; |
434 | ev_io *w; |
361 | |
435 | |
362 | 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) |
363 | { |
437 | { |
364 | int ev = w->events & revents; |
438 | int ev = w->events & revents; |
365 | |
439 | |
366 | if (ev) |
440 | if (ev) |
367 | ev_feed_event (EV_A_ (W)w, ev); |
441 | ev_feed_event (EV_A_ (W)w, ev); |
… | |
… | |
372 | ev_feed_fd_event (EV_P_ int fd, int revents) |
446 | ev_feed_fd_event (EV_P_ int fd, int revents) |
373 | { |
447 | { |
374 | fd_event (EV_A_ fd, revents); |
448 | fd_event (EV_A_ fd, revents); |
375 | } |
449 | } |
376 | |
450 | |
377 | /*****************************************************************************/ |
451 | void inline_size |
378 | |
|
|
379 | static void |
|
|
380 | fd_reify (EV_P) |
452 | fd_reify (EV_P) |
381 | { |
453 | { |
382 | int i; |
454 | int i; |
383 | |
455 | |
384 | for (i = 0; i < fdchangecnt; ++i) |
456 | for (i = 0; i < fdchangecnt; ++i) |
385 | { |
457 | { |
386 | int fd = fdchanges [i]; |
458 | int fd = fdchanges [i]; |
387 | ANFD *anfd = anfds + fd; |
459 | ANFD *anfd = anfds + fd; |
388 | struct ev_io *w; |
460 | ev_io *w; |
389 | |
461 | |
390 | int events = 0; |
462 | int events = 0; |
391 | |
463 | |
392 | 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) |
393 | events |= w->events; |
465 | events |= w->events; |
394 | |
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 | |
395 | anfd->reify = 0; |
476 | anfd->reify = 0; |
396 | |
477 | |
397 | method_modify (EV_A_ fd, anfd->events, events); |
478 | backend_modify (EV_A_ fd, anfd->events, events); |
398 | anfd->events = events; |
479 | anfd->events = events; |
399 | } |
480 | } |
400 | |
481 | |
401 | fdchangecnt = 0; |
482 | fdchangecnt = 0; |
402 | } |
483 | } |
403 | |
484 | |
404 | static void |
485 | void inline_size |
405 | fd_change (EV_P_ int fd) |
486 | fd_change (EV_P_ int fd) |
406 | { |
487 | { |
407 | if (anfds [fd].reify) |
488 | if (expect_false (anfds [fd].reify)) |
408 | return; |
489 | return; |
409 | |
490 | |
410 | anfds [fd].reify = 1; |
491 | anfds [fd].reify = 1; |
411 | |
492 | |
412 | ++fdchangecnt; |
493 | ++fdchangecnt; |
413 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
494 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
414 | fdchanges [fdchangecnt - 1] = fd; |
495 | fdchanges [fdchangecnt - 1] = fd; |
415 | } |
496 | } |
416 | |
497 | |
417 | static void |
498 | void inline_speed |
418 | fd_kill (EV_P_ int fd) |
499 | fd_kill (EV_P_ int fd) |
419 | { |
500 | { |
420 | struct ev_io *w; |
501 | ev_io *w; |
421 | |
502 | |
422 | while ((w = (struct ev_io *)anfds [fd].head)) |
503 | while ((w = (ev_io *)anfds [fd].head)) |
423 | { |
504 | { |
424 | ev_io_stop (EV_A_ w); |
505 | ev_io_stop (EV_A_ w); |
425 | ev_feed_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); |
426 | } |
507 | } |
427 | } |
508 | } |
428 | |
509 | |
429 | static int |
510 | int inline_size |
430 | fd_valid (int fd) |
511 | fd_valid (int fd) |
431 | { |
512 | { |
432 | #ifdef WIN32 |
513 | #ifdef _WIN32 |
433 | return !!win32_get_osfhandle (fd); |
514 | return _get_osfhandle (fd) != -1; |
434 | #else |
515 | #else |
435 | return fcntl (fd, F_GETFD) != -1; |
516 | return fcntl (fd, F_GETFD) != -1; |
436 | #endif |
517 | #endif |
437 | } |
518 | } |
438 | |
519 | |
439 | /* called on EBADF to verify fds */ |
520 | /* called on EBADF to verify fds */ |
440 | static void |
521 | static void noinline |
441 | fd_ebadf (EV_P) |
522 | fd_ebadf (EV_P) |
442 | { |
523 | { |
443 | int fd; |
524 | int fd; |
444 | |
525 | |
445 | for (fd = 0; fd < anfdmax; ++fd) |
526 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
447 | if (!fd_valid (fd) == -1 && errno == EBADF) |
528 | if (!fd_valid (fd) == -1 && errno == EBADF) |
448 | fd_kill (EV_A_ fd); |
529 | fd_kill (EV_A_ fd); |
449 | } |
530 | } |
450 | |
531 | |
451 | /* 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 */ |
452 | static void |
533 | static void noinline |
453 | fd_enomem (EV_P) |
534 | fd_enomem (EV_P) |
454 | { |
535 | { |
455 | int fd; |
536 | int fd; |
456 | |
537 | |
457 | for (fd = anfdmax; fd--; ) |
538 | for (fd = anfdmax; fd--; ) |
… | |
… | |
460 | fd_kill (EV_A_ fd); |
541 | fd_kill (EV_A_ fd); |
461 | return; |
542 | return; |
462 | } |
543 | } |
463 | } |
544 | } |
464 | |
545 | |
465 | /* usually 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 */ |
466 | static void |
547 | static void noinline |
467 | fd_rearm_all (EV_P) |
548 | fd_rearm_all (EV_P) |
468 | { |
549 | { |
469 | int fd; |
550 | int fd; |
470 | |
551 | |
471 | /* 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 */ |
… | |
… | |
477 | } |
558 | } |
478 | } |
559 | } |
479 | |
560 | |
480 | /*****************************************************************************/ |
561 | /*****************************************************************************/ |
481 | |
562 | |
482 | static void |
563 | void inline_speed |
483 | upheap (WT *heap, int k) |
564 | upheap (WT *heap, int k) |
484 | { |
565 | { |
485 | WT w = heap [k]; |
566 | WT w = heap [k]; |
486 | |
567 | |
487 | while (k && heap [k >> 1]->at > w->at) |
568 | while (k && heap [k >> 1]->at > w->at) |
… | |
… | |
494 | heap [k] = w; |
575 | heap [k] = w; |
495 | ((W)heap [k])->active = k + 1; |
576 | ((W)heap [k])->active = k + 1; |
496 | |
577 | |
497 | } |
578 | } |
498 | |
579 | |
499 | static void |
580 | void inline_speed |
500 | downheap (WT *heap, int N, int k) |
581 | downheap (WT *heap, int N, int k) |
501 | { |
582 | { |
502 | WT w = heap [k]; |
583 | WT w = heap [k]; |
503 | |
584 | |
504 | while (k < (N >> 1)) |
585 | while (k < (N >> 1)) |
… | |
… | |
518 | |
599 | |
519 | heap [k] = w; |
600 | heap [k] = w; |
520 | ((W)heap [k])->active = k + 1; |
601 | ((W)heap [k])->active = k + 1; |
521 | } |
602 | } |
522 | |
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 | |
523 | /*****************************************************************************/ |
611 | /*****************************************************************************/ |
524 | |
612 | |
525 | typedef struct |
613 | typedef struct |
526 | { |
614 | { |
527 | WL head; |
615 | WL head; |
… | |
… | |
531 | static ANSIG *signals; |
619 | static ANSIG *signals; |
532 | static int signalmax; |
620 | static int signalmax; |
533 | |
621 | |
534 | static int sigpipe [2]; |
622 | static int sigpipe [2]; |
535 | static sig_atomic_t volatile gotsig; |
623 | static sig_atomic_t volatile gotsig; |
536 | static struct ev_io sigev; |
624 | static ev_io sigev; |
537 | |
625 | |
538 | static void |
626 | void inline_size |
539 | signals_init (ANSIG *base, int count) |
627 | signals_init (ANSIG *base, int count) |
540 | { |
628 | { |
541 | while (count--) |
629 | while (count--) |
542 | { |
630 | { |
543 | base->head = 0; |
631 | base->head = 0; |
… | |
… | |
548 | } |
636 | } |
549 | |
637 | |
550 | static void |
638 | static void |
551 | sighandler (int signum) |
639 | sighandler (int signum) |
552 | { |
640 | { |
553 | #if WIN32 |
641 | #if _WIN32 |
554 | signal (signum, sighandler); |
642 | signal (signum, sighandler); |
555 | #endif |
643 | #endif |
556 | |
644 | |
557 | signals [signum - 1].gotsig = 1; |
645 | signals [signum - 1].gotsig = 1; |
558 | |
646 | |
559 | if (!gotsig) |
647 | if (!gotsig) |
560 | { |
648 | { |
561 | int old_errno = errno; |
649 | int old_errno = errno; |
562 | gotsig = 1; |
650 | gotsig = 1; |
563 | #ifdef WIN32 |
|
|
564 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
565 | #else |
|
|
566 | write (sigpipe [1], &signum, 1); |
651 | write (sigpipe [1], &signum, 1); |
567 | #endif |
|
|
568 | errno = old_errno; |
652 | errno = old_errno; |
569 | } |
653 | } |
570 | } |
654 | } |
571 | |
655 | |
572 | void |
656 | void noinline |
573 | ev_feed_signal_event (EV_P_ int signum) |
657 | ev_feed_signal_event (EV_P_ int signum) |
574 | { |
658 | { |
575 | WL w; |
659 | WL w; |
576 | |
660 | |
577 | #if EV_MULTIPLICITY |
661 | #if EV_MULTIPLICITY |
578 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
662 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
579 | #endif |
663 | #endif |
580 | |
664 | |
581 | --signum; |
665 | --signum; |
582 | |
666 | |
583 | if (signum < 0 || signum >= signalmax) |
667 | if (signum < 0 || signum >= signalmax) |
… | |
… | |
588 | for (w = signals [signum].head; w; w = w->next) |
672 | for (w = signals [signum].head; w; w = w->next) |
589 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
673 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
590 | } |
674 | } |
591 | |
675 | |
592 | static void |
676 | static void |
593 | sigcb (EV_P_ struct ev_io *iow, int revents) |
677 | sigcb (EV_P_ ev_io *iow, int revents) |
594 | { |
678 | { |
595 | int signum; |
679 | int signum; |
596 | |
680 | |
597 | #ifdef WIN32 |
|
|
598 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
599 | #else |
|
|
600 | read (sigpipe [0], &revents, 1); |
681 | read (sigpipe [0], &revents, 1); |
601 | #endif |
|
|
602 | gotsig = 0; |
682 | gotsig = 0; |
603 | |
683 | |
604 | for (signum = signalmax; signum--; ) |
684 | for (signum = signalmax; signum--; ) |
605 | if (signals [signum].gotsig) |
685 | if (signals [signum].gotsig) |
606 | ev_feed_signal_event (EV_A_ signum + 1); |
686 | ev_feed_signal_event (EV_A_ signum + 1); |
607 | } |
687 | } |
608 | |
688 | |
609 | 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 |
610 | siginit (EV_P) |
702 | siginit (EV_P) |
611 | { |
703 | { |
612 | #ifndef WIN32 |
704 | fd_intern (sigpipe [0]); |
613 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
705 | fd_intern (sigpipe [1]); |
614 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
615 | |
|
|
616 | /* rather than sort out wether we really need nb, set it */ |
|
|
617 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
618 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
619 | #endif |
|
|
620 | |
706 | |
621 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
707 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
622 | ev_io_start (EV_A_ &sigev); |
708 | ev_io_start (EV_A_ &sigev); |
623 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
709 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
624 | } |
710 | } |
625 | |
711 | |
626 | /*****************************************************************************/ |
712 | /*****************************************************************************/ |
627 | |
713 | |
628 | static struct ev_child *childs [PID_HASHSIZE]; |
714 | static ev_child *childs [PID_HASHSIZE]; |
629 | |
715 | |
630 | #ifndef WIN32 |
716 | #ifndef _WIN32 |
631 | |
717 | |
632 | static struct ev_signal childev; |
718 | static ev_signal childev; |
633 | |
719 | |
634 | #ifndef WCONTINUED |
720 | void inline_speed |
635 | # define WCONTINUED 0 |
|
|
636 | #endif |
|
|
637 | |
|
|
638 | static void |
|
|
639 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
721 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
640 | { |
722 | { |
641 | struct ev_child *w; |
723 | ev_child *w; |
642 | |
724 | |
643 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
725 | for (w = (ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
644 | if (w->pid == pid || !w->pid) |
726 | if (w->pid == pid || !w->pid) |
645 | { |
727 | { |
646 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
728 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
647 | w->rpid = pid; |
729 | w->rpid = pid; |
648 | w->rstatus = status; |
730 | w->rstatus = status; |
649 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
731 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
650 | } |
732 | } |
651 | } |
733 | } |
652 | |
734 | |
|
|
735 | #ifndef WCONTINUED |
|
|
736 | # define WCONTINUED 0 |
|
|
737 | #endif |
|
|
738 | |
653 | static void |
739 | static void |
654 | childcb (EV_P_ struct ev_signal *sw, int revents) |
740 | childcb (EV_P_ ev_signal *sw, int revents) |
655 | { |
741 | { |
656 | int pid, status; |
742 | int pid, status; |
657 | |
743 | |
|
|
744 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
658 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
745 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
659 | { |
746 | if (!WCONTINUED |
|
|
747 | || errno != EINVAL |
|
|
748 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
749 | return; |
|
|
750 | |
660 | /* make sure we are called again until all childs have been reaped */ |
751 | /* make sure we are called again until all childs have been reaped */ |
|
|
752 | /* we need to do it this way so that the callback gets called before we continue */ |
661 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
753 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
662 | |
754 | |
663 | child_reap (EV_A_ sw, pid, pid, status); |
755 | child_reap (EV_A_ sw, pid, pid, status); |
664 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
756 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
665 | } |
|
|
666 | } |
757 | } |
667 | |
758 | |
668 | #endif |
759 | #endif |
669 | |
760 | |
670 | /*****************************************************************************/ |
761 | /*****************************************************************************/ |
671 | |
762 | |
|
|
763 | #if EV_USE_PORT |
|
|
764 | # include "ev_port.c" |
|
|
765 | #endif |
672 | #if EV_USE_KQUEUE |
766 | #if EV_USE_KQUEUE |
673 | # include "ev_kqueue.c" |
767 | # include "ev_kqueue.c" |
674 | #endif |
768 | #endif |
675 | #if EV_USE_EPOLL |
769 | #if EV_USE_EPOLL |
676 | # include "ev_epoll.c" |
770 | # include "ev_epoll.c" |
… | |
… | |
693 | { |
787 | { |
694 | return EV_VERSION_MINOR; |
788 | return EV_VERSION_MINOR; |
695 | } |
789 | } |
696 | |
790 | |
697 | /* return true if we are running with elevated privileges and should ignore env variables */ |
791 | /* return true if we are running with elevated privileges and should ignore env variables */ |
698 | static int |
792 | int inline_size |
699 | enable_secure (void) |
793 | enable_secure (void) |
700 | { |
794 | { |
701 | #ifdef WIN32 |
795 | #ifdef _WIN32 |
702 | return 0; |
796 | return 0; |
703 | #else |
797 | #else |
704 | return getuid () != geteuid () |
798 | return getuid () != geteuid () |
705 | || getgid () != getegid (); |
799 | || getgid () != getegid (); |
706 | #endif |
800 | #endif |
707 | } |
801 | } |
708 | |
802 | |
709 | int |
803 | unsigned int |
710 | ev_method (EV_P) |
804 | ev_supported_backends (void) |
711 | { |
805 | { |
712 | return method; |
806 | unsigned int flags = 0; |
|
|
807 | |
|
|
808 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
809 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
810 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
811 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
812 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
813 | |
|
|
814 | return flags; |
|
|
815 | } |
|
|
816 | |
|
|
817 | unsigned int |
|
|
818 | ev_recommended_backends (void) |
|
|
819 | { |
|
|
820 | unsigned int flags = ev_supported_backends (); |
|
|
821 | |
|
|
822 | #ifndef __NetBSD__ |
|
|
823 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
824 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
825 | flags &= ~EVBACKEND_KQUEUE; |
|
|
826 | #endif |
|
|
827 | #ifdef __APPLE__ |
|
|
828 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
829 | flags &= ~EVBACKEND_POLL; |
|
|
830 | #endif |
|
|
831 | |
|
|
832 | return flags; |
|
|
833 | } |
|
|
834 | |
|
|
835 | unsigned int |
|
|
836 | ev_embeddable_backends (void) |
|
|
837 | { |
|
|
838 | return EVBACKEND_EPOLL |
|
|
839 | | EVBACKEND_KQUEUE |
|
|
840 | | EVBACKEND_PORT; |
|
|
841 | } |
|
|
842 | |
|
|
843 | unsigned int |
|
|
844 | ev_backend (EV_P) |
|
|
845 | { |
|
|
846 | return backend; |
713 | } |
847 | } |
714 | |
848 | |
715 | static void |
849 | static void |
716 | loop_init (EV_P_ int methods) |
850 | loop_init (EV_P_ unsigned int flags) |
717 | { |
851 | { |
718 | if (!method) |
852 | if (!backend) |
719 | { |
853 | { |
720 | #if EV_USE_MONOTONIC |
854 | #if EV_USE_MONOTONIC |
721 | { |
855 | { |
722 | struct timespec ts; |
856 | struct timespec ts; |
723 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
857 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
724 | have_monotonic = 1; |
858 | have_monotonic = 1; |
725 | } |
859 | } |
726 | #endif |
860 | #endif |
727 | |
861 | |
728 | rt_now = ev_time (); |
862 | ev_rt_now = ev_time (); |
729 | mn_now = get_clock (); |
863 | mn_now = get_clock (); |
730 | now_floor = mn_now; |
864 | now_floor = mn_now; |
731 | rtmn_diff = rt_now - mn_now; |
865 | rtmn_diff = ev_rt_now - mn_now; |
732 | |
866 | |
733 | if (methods == EVMETHOD_AUTO) |
867 | if (!(flags & EVFLAG_NOENV) |
734 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
868 | && !enable_secure () |
|
|
869 | && getenv ("LIBEV_FLAGS")) |
735 | methods = atoi (getenv ("LIBEV_METHODS")); |
870 | flags = atoi (getenv ("LIBEV_FLAGS")); |
736 | else |
|
|
737 | methods = EVMETHOD_ANY; |
|
|
738 | |
871 | |
739 | method = 0; |
872 | if (!(flags & 0x0000ffffUL)) |
740 | #if EV_USE_WIN32 |
873 | flags |= ev_recommended_backends (); |
741 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
874 | |
|
|
875 | backend = 0; |
|
|
876 | #if EV_USE_PORT |
|
|
877 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
742 | #endif |
878 | #endif |
743 | #if EV_USE_KQUEUE |
879 | #if EV_USE_KQUEUE |
744 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
880 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
745 | #endif |
881 | #endif |
746 | #if EV_USE_EPOLL |
882 | #if EV_USE_EPOLL |
747 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
883 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
748 | #endif |
884 | #endif |
749 | #if EV_USE_POLL |
885 | #if EV_USE_POLL |
750 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
886 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
751 | #endif |
887 | #endif |
752 | #if EV_USE_SELECT |
888 | #if EV_USE_SELECT |
753 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
889 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
754 | #endif |
890 | #endif |
755 | |
891 | |
756 | ev_watcher_init (&sigev, sigcb); |
892 | ev_init (&sigev, sigcb); |
757 | ev_set_priority (&sigev, EV_MAXPRI); |
893 | ev_set_priority (&sigev, EV_MAXPRI); |
758 | } |
894 | } |
759 | } |
895 | } |
760 | |
896 | |
761 | void |
897 | static void |
762 | loop_destroy (EV_P) |
898 | loop_destroy (EV_P) |
763 | { |
899 | { |
764 | int i; |
900 | int i; |
765 | |
901 | |
766 | #if EV_USE_WIN32 |
902 | #if EV_USE_PORT |
767 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
903 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
768 | #endif |
904 | #endif |
769 | #if EV_USE_KQUEUE |
905 | #if EV_USE_KQUEUE |
770 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
906 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
771 | #endif |
907 | #endif |
772 | #if EV_USE_EPOLL |
908 | #if EV_USE_EPOLL |
773 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
909 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
774 | #endif |
910 | #endif |
775 | #if EV_USE_POLL |
911 | #if EV_USE_POLL |
776 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
912 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
777 | #endif |
913 | #endif |
778 | #if EV_USE_SELECT |
914 | #if EV_USE_SELECT |
779 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
915 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
780 | #endif |
916 | #endif |
781 | |
917 | |
782 | for (i = NUMPRI; i--; ) |
918 | for (i = NUMPRI; i--; ) |
783 | array_free (pending, [i]); |
919 | array_free (pending, [i]); |
784 | |
920 | |
785 | /* have to use the microsoft-never-gets-it-right macro */ |
921 | /* have to use the microsoft-never-gets-it-right macro */ |
786 | array_free_microshit (fdchange); |
922 | array_free (fdchange, EMPTY0); |
787 | array_free_microshit (timer); |
923 | array_free (timer, EMPTY0); |
788 | array_free_microshit (periodic); |
924 | #if EV_PERIODIC_ENABLE |
789 | array_free_microshit (idle); |
925 | array_free (periodic, EMPTY0); |
790 | array_free_microshit (prepare); |
926 | #endif |
791 | array_free_microshit (check); |
927 | array_free (idle, EMPTY0); |
|
|
928 | array_free (prepare, EMPTY0); |
|
|
929 | array_free (check, EMPTY0); |
792 | |
930 | |
793 | method = 0; |
931 | backend = 0; |
794 | } |
932 | } |
795 | |
933 | |
796 | static void |
934 | static void |
797 | loop_fork (EV_P) |
935 | loop_fork (EV_P) |
798 | { |
936 | { |
|
|
937 | #if EV_USE_PORT |
|
|
938 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
939 | #endif |
|
|
940 | #if EV_USE_KQUEUE |
|
|
941 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
942 | #endif |
799 | #if EV_USE_EPOLL |
943 | #if EV_USE_EPOLL |
800 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
944 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
801 | #endif |
|
|
802 | #if EV_USE_KQUEUE |
|
|
803 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
|
|
804 | #endif |
945 | #endif |
805 | |
946 | |
806 | if (ev_is_active (&sigev)) |
947 | if (ev_is_active (&sigev)) |
807 | { |
948 | { |
808 | /* default loop */ |
949 | /* default loop */ |
… | |
… | |
821 | postfork = 0; |
962 | postfork = 0; |
822 | } |
963 | } |
823 | |
964 | |
824 | #if EV_MULTIPLICITY |
965 | #if EV_MULTIPLICITY |
825 | struct ev_loop * |
966 | struct ev_loop * |
826 | ev_loop_new (int methods) |
967 | ev_loop_new (unsigned int flags) |
827 | { |
968 | { |
828 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
969 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
829 | |
970 | |
830 | memset (loop, 0, sizeof (struct ev_loop)); |
971 | memset (loop, 0, sizeof (struct ev_loop)); |
831 | |
972 | |
832 | loop_init (EV_A_ methods); |
973 | loop_init (EV_A_ flags); |
833 | |
974 | |
834 | if (ev_method (EV_A)) |
975 | if (ev_backend (EV_A)) |
835 | return loop; |
976 | return loop; |
836 | |
977 | |
837 | return 0; |
978 | return 0; |
838 | } |
979 | } |
839 | |
980 | |
… | |
… | |
852 | |
993 | |
853 | #endif |
994 | #endif |
854 | |
995 | |
855 | #if EV_MULTIPLICITY |
996 | #if EV_MULTIPLICITY |
856 | struct ev_loop * |
997 | struct ev_loop * |
|
|
998 | ev_default_loop_init (unsigned int flags) |
857 | #else |
999 | #else |
858 | int |
1000 | int |
|
|
1001 | ev_default_loop (unsigned int flags) |
859 | #endif |
1002 | #endif |
860 | ev_default_loop (int methods) |
|
|
861 | { |
1003 | { |
862 | if (sigpipe [0] == sigpipe [1]) |
1004 | if (sigpipe [0] == sigpipe [1]) |
863 | if (pipe (sigpipe)) |
1005 | if (pipe (sigpipe)) |
864 | return 0; |
1006 | return 0; |
865 | |
1007 | |
866 | if (!default_loop) |
1008 | if (!ev_default_loop_ptr) |
867 | { |
1009 | { |
868 | #if EV_MULTIPLICITY |
1010 | #if EV_MULTIPLICITY |
869 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1011 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
870 | #else |
1012 | #else |
871 | default_loop = 1; |
1013 | ev_default_loop_ptr = 1; |
872 | #endif |
1014 | #endif |
873 | |
1015 | |
874 | loop_init (EV_A_ methods); |
1016 | loop_init (EV_A_ flags); |
875 | |
1017 | |
876 | if (ev_method (EV_A)) |
1018 | if (ev_backend (EV_A)) |
877 | { |
1019 | { |
878 | siginit (EV_A); |
1020 | siginit (EV_A); |
879 | |
1021 | |
880 | #ifndef WIN32 |
1022 | #ifndef _WIN32 |
881 | ev_signal_init (&childev, childcb, SIGCHLD); |
1023 | ev_signal_init (&childev, childcb, SIGCHLD); |
882 | ev_set_priority (&childev, EV_MAXPRI); |
1024 | ev_set_priority (&childev, EV_MAXPRI); |
883 | ev_signal_start (EV_A_ &childev); |
1025 | ev_signal_start (EV_A_ &childev); |
884 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1026 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
885 | #endif |
1027 | #endif |
886 | } |
1028 | } |
887 | else |
1029 | else |
888 | default_loop = 0; |
1030 | ev_default_loop_ptr = 0; |
889 | } |
1031 | } |
890 | |
1032 | |
891 | return default_loop; |
1033 | return ev_default_loop_ptr; |
892 | } |
1034 | } |
893 | |
1035 | |
894 | void |
1036 | void |
895 | ev_default_destroy (void) |
1037 | ev_default_destroy (void) |
896 | { |
1038 | { |
897 | #if EV_MULTIPLICITY |
1039 | #if EV_MULTIPLICITY |
898 | struct ev_loop *loop = default_loop; |
1040 | struct ev_loop *loop = ev_default_loop_ptr; |
899 | #endif |
1041 | #endif |
900 | |
1042 | |
901 | #ifndef WIN32 |
1043 | #ifndef _WIN32 |
902 | ev_ref (EV_A); /* child watcher */ |
1044 | ev_ref (EV_A); /* child watcher */ |
903 | ev_signal_stop (EV_A_ &childev); |
1045 | ev_signal_stop (EV_A_ &childev); |
904 | #endif |
1046 | #endif |
905 | |
1047 | |
906 | ev_ref (EV_A); /* signal watcher */ |
1048 | ev_ref (EV_A); /* signal watcher */ |
… | |
… | |
914 | |
1056 | |
915 | void |
1057 | void |
916 | ev_default_fork (void) |
1058 | ev_default_fork (void) |
917 | { |
1059 | { |
918 | #if EV_MULTIPLICITY |
1060 | #if EV_MULTIPLICITY |
919 | struct ev_loop *loop = default_loop; |
1061 | struct ev_loop *loop = ev_default_loop_ptr; |
920 | #endif |
1062 | #endif |
921 | |
1063 | |
922 | if (method) |
1064 | if (backend) |
923 | postfork = 1; |
1065 | postfork = 1; |
924 | } |
1066 | } |
925 | |
1067 | |
926 | /*****************************************************************************/ |
1068 | /*****************************************************************************/ |
927 | |
1069 | |
928 | static int |
1070 | int inline_size |
929 | any_pending (EV_P) |
1071 | any_pending (EV_P) |
930 | { |
1072 | { |
931 | int pri; |
1073 | int pri; |
932 | |
1074 | |
933 | for (pri = NUMPRI; pri--; ) |
1075 | for (pri = NUMPRI; pri--; ) |
… | |
… | |
935 | return 1; |
1077 | return 1; |
936 | |
1078 | |
937 | return 0; |
1079 | return 0; |
938 | } |
1080 | } |
939 | |
1081 | |
940 | static void |
1082 | void inline_speed |
941 | call_pending (EV_P) |
1083 | call_pending (EV_P) |
942 | { |
1084 | { |
943 | int pri; |
1085 | int pri; |
944 | |
1086 | |
945 | for (pri = NUMPRI; pri--; ) |
1087 | for (pri = NUMPRI; pri--; ) |
946 | while (pendingcnt [pri]) |
1088 | while (pendingcnt [pri]) |
947 | { |
1089 | { |
948 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1090 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
949 | |
1091 | |
950 | if (p->w) |
1092 | if (expect_true (p->w)) |
951 | { |
1093 | { |
|
|
1094 | assert (("non-pending watcher on pending list", p->w->pending)); |
|
|
1095 | |
952 | p->w->pending = 0; |
1096 | p->w->pending = 0; |
953 | p->w->cb (EV_A_ p->w, p->events); |
1097 | EV_CB_INVOKE (p->w, p->events); |
954 | } |
1098 | } |
955 | } |
1099 | } |
956 | } |
1100 | } |
957 | |
1101 | |
958 | static void |
1102 | void inline_size |
959 | timers_reify (EV_P) |
1103 | timers_reify (EV_P) |
960 | { |
1104 | { |
961 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1105 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
962 | { |
1106 | { |
963 | struct ev_timer *w = timers [0]; |
1107 | ev_timer *w = timers [0]; |
964 | |
1108 | |
965 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1109 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
966 | |
1110 | |
967 | /* first reschedule or stop timer */ |
1111 | /* first reschedule or stop timer */ |
968 | if (w->repeat) |
1112 | if (w->repeat) |
969 | { |
1113 | { |
970 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1114 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1115 | |
971 | ((WT)w)->at = mn_now + w->repeat; |
1116 | ((WT)w)->at += w->repeat; |
|
|
1117 | if (((WT)w)->at < mn_now) |
|
|
1118 | ((WT)w)->at = mn_now; |
|
|
1119 | |
972 | downheap ((WT *)timers, timercnt, 0); |
1120 | downheap ((WT *)timers, timercnt, 0); |
973 | } |
1121 | } |
974 | else |
1122 | else |
975 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1123 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
976 | |
1124 | |
977 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
1125 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
978 | } |
1126 | } |
979 | } |
1127 | } |
980 | |
1128 | |
981 | static void |
1129 | #if EV_PERIODIC_ENABLE |
|
|
1130 | void inline_size |
982 | periodics_reify (EV_P) |
1131 | periodics_reify (EV_P) |
983 | { |
1132 | { |
984 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1133 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
985 | { |
1134 | { |
986 | struct ev_periodic *w = periodics [0]; |
1135 | ev_periodic *w = periodics [0]; |
987 | |
1136 | |
988 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1137 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
989 | |
1138 | |
990 | /* first reschedule or stop timer */ |
1139 | /* first reschedule or stop timer */ |
991 | if (w->reschedule_cb) |
1140 | if (w->reschedule_cb) |
992 | { |
1141 | { |
993 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
1142 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + 0.0001); |
994 | |
|
|
995 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
1143 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
996 | downheap ((WT *)periodics, periodiccnt, 0); |
1144 | downheap ((WT *)periodics, periodiccnt, 0); |
997 | } |
1145 | } |
998 | else if (w->interval) |
1146 | else if (w->interval) |
999 | { |
1147 | { |
1000 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1148 | ((WT)w)->at += floor ((ev_rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1001 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1149 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
1002 | downheap ((WT *)periodics, periodiccnt, 0); |
1150 | downheap ((WT *)periodics, periodiccnt, 0); |
1003 | } |
1151 | } |
1004 | else |
1152 | else |
1005 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1153 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1006 | |
1154 | |
1007 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1155 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
1008 | } |
1156 | } |
1009 | } |
1157 | } |
1010 | |
1158 | |
1011 | static void |
1159 | static void noinline |
1012 | periodics_reschedule (EV_P) |
1160 | periodics_reschedule (EV_P) |
1013 | { |
1161 | { |
1014 | int i; |
1162 | int i; |
1015 | |
1163 | |
1016 | /* adjust periodics after time jump */ |
1164 | /* adjust periodics after time jump */ |
1017 | for (i = 0; i < periodiccnt; ++i) |
1165 | for (i = 0; i < periodiccnt; ++i) |
1018 | { |
1166 | { |
1019 | struct ev_periodic *w = periodics [i]; |
1167 | ev_periodic *w = periodics [i]; |
1020 | |
1168 | |
1021 | if (w->reschedule_cb) |
1169 | if (w->reschedule_cb) |
1022 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1170 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1023 | else if (w->interval) |
1171 | else if (w->interval) |
1024 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1172 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1025 | } |
1173 | } |
1026 | |
1174 | |
1027 | /* now rebuild the heap */ |
1175 | /* now rebuild the heap */ |
1028 | for (i = periodiccnt >> 1; i--; ) |
1176 | for (i = periodiccnt >> 1; i--; ) |
1029 | downheap ((WT *)periodics, periodiccnt, i); |
1177 | downheap ((WT *)periodics, periodiccnt, i); |
1030 | } |
1178 | } |
|
|
1179 | #endif |
1031 | |
1180 | |
1032 | inline int |
1181 | int inline_size |
1033 | time_update_monotonic (EV_P) |
1182 | time_update_monotonic (EV_P) |
1034 | { |
1183 | { |
1035 | mn_now = get_clock (); |
1184 | mn_now = get_clock (); |
1036 | |
1185 | |
1037 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1186 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1038 | { |
1187 | { |
1039 | rt_now = rtmn_diff + mn_now; |
1188 | ev_rt_now = rtmn_diff + mn_now; |
1040 | return 0; |
1189 | return 0; |
1041 | } |
1190 | } |
1042 | else |
1191 | else |
1043 | { |
1192 | { |
1044 | now_floor = mn_now; |
1193 | now_floor = mn_now; |
1045 | rt_now = ev_time (); |
1194 | ev_rt_now = ev_time (); |
1046 | return 1; |
1195 | return 1; |
1047 | } |
1196 | } |
1048 | } |
1197 | } |
1049 | |
1198 | |
1050 | static void |
1199 | void inline_size |
1051 | time_update (EV_P) |
1200 | time_update (EV_P) |
1052 | { |
1201 | { |
1053 | int i; |
1202 | int i; |
1054 | |
1203 | |
1055 | #if EV_USE_MONOTONIC |
1204 | #if EV_USE_MONOTONIC |
… | |
… | |
1057 | { |
1206 | { |
1058 | if (time_update_monotonic (EV_A)) |
1207 | if (time_update_monotonic (EV_A)) |
1059 | { |
1208 | { |
1060 | ev_tstamp odiff = rtmn_diff; |
1209 | ev_tstamp odiff = rtmn_diff; |
1061 | |
1210 | |
1062 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1211 | /* loop a few times, before making important decisions. |
|
|
1212 | * on the choice of "4": one iteration isn't enough, |
|
|
1213 | * in case we get preempted during the calls to |
|
|
1214 | * ev_time and get_clock. a second call is almost guarenteed |
|
|
1215 | * to succeed in that case, though. and looping a few more times |
|
|
1216 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1217 | * in the unlikely event of getting preempted here. |
|
|
1218 | */ |
|
|
1219 | for (i = 4; --i; ) |
1063 | { |
1220 | { |
1064 | rtmn_diff = rt_now - mn_now; |
1221 | rtmn_diff = ev_rt_now - mn_now; |
1065 | |
1222 | |
1066 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1223 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1067 | return; /* all is well */ |
1224 | return; /* all is well */ |
1068 | |
1225 | |
1069 | rt_now = ev_time (); |
1226 | ev_rt_now = ev_time (); |
1070 | mn_now = get_clock (); |
1227 | mn_now = get_clock (); |
1071 | now_floor = mn_now; |
1228 | now_floor = mn_now; |
1072 | } |
1229 | } |
1073 | |
1230 | |
|
|
1231 | # if EV_PERIODIC_ENABLE |
1074 | periodics_reschedule (EV_A); |
1232 | periodics_reschedule (EV_A); |
|
|
1233 | # endif |
1075 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1234 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1076 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1235 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1077 | } |
1236 | } |
1078 | } |
1237 | } |
1079 | else |
1238 | else |
1080 | #endif |
1239 | #endif |
1081 | { |
1240 | { |
1082 | rt_now = ev_time (); |
1241 | ev_rt_now = ev_time (); |
1083 | |
1242 | |
1084 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1243 | if (expect_false (mn_now > ev_rt_now || mn_now < ev_rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
1085 | { |
1244 | { |
|
|
1245 | #if EV_PERIODIC_ENABLE |
1086 | periodics_reschedule (EV_A); |
1246 | periodics_reschedule (EV_A); |
|
|
1247 | #endif |
1087 | |
1248 | |
1088 | /* adjust timers. this is easy, as the offset is the same for all */ |
1249 | /* adjust timers. this is easy, as the offset is the same for all */ |
1089 | for (i = 0; i < timercnt; ++i) |
1250 | for (i = 0; i < timercnt; ++i) |
1090 | ((WT)timers [i])->at += rt_now - mn_now; |
1251 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1091 | } |
1252 | } |
1092 | |
1253 | |
1093 | mn_now = rt_now; |
1254 | mn_now = ev_rt_now; |
1094 | } |
1255 | } |
1095 | } |
1256 | } |
1096 | |
1257 | |
1097 | void |
1258 | void |
1098 | ev_ref (EV_P) |
1259 | ev_ref (EV_P) |
… | |
… | |
1109 | static int loop_done; |
1270 | static int loop_done; |
1110 | |
1271 | |
1111 | void |
1272 | void |
1112 | ev_loop (EV_P_ int flags) |
1273 | ev_loop (EV_P_ int flags) |
1113 | { |
1274 | { |
1114 | double block; |
|
|
1115 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1275 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1276 | ? EVUNLOOP_ONE |
|
|
1277 | : EVUNLOOP_CANCEL; |
1116 | |
1278 | |
1117 | do |
1279 | while (activecnt) |
1118 | { |
1280 | { |
1119 | /* queue check watchers (and execute them) */ |
1281 | /* queue check watchers (and execute them) */ |
1120 | if (expect_false (preparecnt)) |
1282 | if (expect_false (preparecnt)) |
1121 | { |
1283 | { |
1122 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1284 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
… | |
… | |
1129 | |
1291 | |
1130 | /* update fd-related kernel structures */ |
1292 | /* update fd-related kernel structures */ |
1131 | fd_reify (EV_A); |
1293 | fd_reify (EV_A); |
1132 | |
1294 | |
1133 | /* calculate blocking time */ |
1295 | /* calculate blocking time */ |
|
|
1296 | { |
|
|
1297 | double block; |
1134 | |
1298 | |
1135 | /* we only need this for !monotonic clock or timers, but as we basically |
1299 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
1136 | always have timers, we just calculate it always */ |
1300 | block = 0.; /* do not block at all */ |
|
|
1301 | else |
|
|
1302 | { |
|
|
1303 | /* update time to cancel out callback processing overhead */ |
1137 | #if EV_USE_MONOTONIC |
1304 | #if EV_USE_MONOTONIC |
1138 | if (expect_true (have_monotonic)) |
1305 | if (expect_true (have_monotonic)) |
1139 | time_update_monotonic (EV_A); |
1306 | time_update_monotonic (EV_A); |
1140 | else |
1307 | else |
1141 | #endif |
1308 | #endif |
1142 | { |
1309 | { |
1143 | rt_now = ev_time (); |
1310 | ev_rt_now = ev_time (); |
1144 | mn_now = rt_now; |
1311 | mn_now = ev_rt_now; |
1145 | } |
1312 | } |
1146 | |
1313 | |
1147 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1148 | block = 0.; |
|
|
1149 | else |
|
|
1150 | { |
|
|
1151 | block = MAX_BLOCKTIME; |
1314 | block = MAX_BLOCKTIME; |
1152 | |
1315 | |
1153 | if (timercnt) |
1316 | if (timercnt) |
1154 | { |
1317 | { |
1155 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1318 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1156 | if (block > to) block = to; |
1319 | if (block > to) block = to; |
1157 | } |
1320 | } |
1158 | |
1321 | |
|
|
1322 | #if EV_PERIODIC_ENABLE |
1159 | if (periodiccnt) |
1323 | if (periodiccnt) |
1160 | { |
1324 | { |
1161 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1325 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1162 | if (block > to) block = to; |
1326 | if (block > to) block = to; |
1163 | } |
1327 | } |
|
|
1328 | #endif |
1164 | |
1329 | |
1165 | if (block < 0.) block = 0.; |
1330 | if (expect_false (block < 0.)) block = 0.; |
1166 | } |
1331 | } |
1167 | |
1332 | |
1168 | method_poll (EV_A_ block); |
1333 | backend_poll (EV_A_ block); |
|
|
1334 | } |
1169 | |
1335 | |
1170 | /* update rt_now, do magic */ |
1336 | /* update ev_rt_now, do magic */ |
1171 | time_update (EV_A); |
1337 | time_update (EV_A); |
1172 | |
1338 | |
1173 | /* queue pending timers and reschedule them */ |
1339 | /* queue pending timers and reschedule them */ |
1174 | timers_reify (EV_A); /* relative timers called last */ |
1340 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1341 | #if EV_PERIODIC_ENABLE |
1175 | periodics_reify (EV_A); /* absolute timers called first */ |
1342 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1343 | #endif |
1176 | |
1344 | |
1177 | /* queue idle watchers unless io or timers are pending */ |
1345 | /* queue idle watchers unless other events are pending */ |
1178 | if (idlecnt && !any_pending (EV_A)) |
1346 | if (idlecnt && !any_pending (EV_A)) |
1179 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1347 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1180 | |
1348 | |
1181 | /* queue check watchers, to be executed first */ |
1349 | /* queue check watchers, to be executed first */ |
1182 | if (checkcnt) |
1350 | if (expect_false (checkcnt)) |
1183 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1351 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1184 | |
1352 | |
1185 | call_pending (EV_A); |
1353 | call_pending (EV_A); |
1186 | } |
|
|
1187 | while (activecnt && !loop_done); |
|
|
1188 | |
1354 | |
1189 | if (loop_done != 2) |
1355 | if (expect_false (loop_done)) |
1190 | loop_done = 0; |
1356 | break; |
|
|
1357 | } |
|
|
1358 | |
|
|
1359 | if (loop_done == EVUNLOOP_ONE) |
|
|
1360 | loop_done = EVUNLOOP_CANCEL; |
1191 | } |
1361 | } |
1192 | |
1362 | |
1193 | void |
1363 | void |
1194 | ev_unloop (EV_P_ int how) |
1364 | ev_unloop (EV_P_ int how) |
1195 | { |
1365 | { |
1196 | loop_done = how; |
1366 | loop_done = how; |
1197 | } |
1367 | } |
1198 | |
1368 | |
1199 | /*****************************************************************************/ |
1369 | /*****************************************************************************/ |
1200 | |
1370 | |
1201 | inline void |
1371 | void inline_size |
1202 | wlist_add (WL *head, WL elem) |
1372 | wlist_add (WL *head, WL elem) |
1203 | { |
1373 | { |
1204 | elem->next = *head; |
1374 | elem->next = *head; |
1205 | *head = elem; |
1375 | *head = elem; |
1206 | } |
1376 | } |
1207 | |
1377 | |
1208 | inline void |
1378 | void inline_size |
1209 | wlist_del (WL *head, WL elem) |
1379 | wlist_del (WL *head, WL elem) |
1210 | { |
1380 | { |
1211 | while (*head) |
1381 | while (*head) |
1212 | { |
1382 | { |
1213 | if (*head == elem) |
1383 | if (*head == elem) |
… | |
… | |
1218 | |
1388 | |
1219 | head = &(*head)->next; |
1389 | head = &(*head)->next; |
1220 | } |
1390 | } |
1221 | } |
1391 | } |
1222 | |
1392 | |
1223 | inline void |
1393 | void inline_speed |
1224 | ev_clear_pending (EV_P_ W w) |
1394 | ev_clear_pending (EV_P_ W w) |
1225 | { |
1395 | { |
1226 | if (w->pending) |
1396 | if (w->pending) |
1227 | { |
1397 | { |
1228 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1398 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1229 | w->pending = 0; |
1399 | w->pending = 0; |
1230 | } |
1400 | } |
1231 | } |
1401 | } |
1232 | |
1402 | |
1233 | inline void |
1403 | void inline_speed |
1234 | ev_start (EV_P_ W w, int active) |
1404 | ev_start (EV_P_ W w, int active) |
1235 | { |
1405 | { |
1236 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1406 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1237 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1407 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
1238 | |
1408 | |
1239 | w->active = active; |
1409 | w->active = active; |
1240 | ev_ref (EV_A); |
1410 | ev_ref (EV_A); |
1241 | } |
1411 | } |
1242 | |
1412 | |
1243 | inline void |
1413 | void inline_size |
1244 | ev_stop (EV_P_ W w) |
1414 | ev_stop (EV_P_ W w) |
1245 | { |
1415 | { |
1246 | ev_unref (EV_A); |
1416 | ev_unref (EV_A); |
1247 | w->active = 0; |
1417 | w->active = 0; |
1248 | } |
1418 | } |
1249 | |
1419 | |
1250 | /*****************************************************************************/ |
1420 | /*****************************************************************************/ |
1251 | |
1421 | |
1252 | void |
1422 | void |
1253 | ev_io_start (EV_P_ struct ev_io *w) |
1423 | ev_io_start (EV_P_ ev_io *w) |
1254 | { |
1424 | { |
1255 | int fd = w->fd; |
1425 | int fd = w->fd; |
1256 | |
1426 | |
1257 | if (ev_is_active (w)) |
1427 | if (expect_false (ev_is_active (w))) |
1258 | return; |
1428 | return; |
1259 | |
1429 | |
1260 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1430 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1261 | |
1431 | |
1262 | ev_start (EV_A_ (W)w, 1); |
1432 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
1265 | |
1435 | |
1266 | fd_change (EV_A_ fd); |
1436 | fd_change (EV_A_ fd); |
1267 | } |
1437 | } |
1268 | |
1438 | |
1269 | void |
1439 | void |
1270 | ev_io_stop (EV_P_ struct ev_io *w) |
1440 | ev_io_stop (EV_P_ ev_io *w) |
1271 | { |
1441 | { |
1272 | ev_clear_pending (EV_A_ (W)w); |
1442 | ev_clear_pending (EV_A_ (W)w); |
1273 | if (!ev_is_active (w)) |
1443 | if (expect_false (!ev_is_active (w))) |
1274 | return; |
1444 | return; |
|
|
1445 | |
|
|
1446 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1275 | |
1447 | |
1276 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1448 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1277 | ev_stop (EV_A_ (W)w); |
1449 | ev_stop (EV_A_ (W)w); |
1278 | |
1450 | |
1279 | fd_change (EV_A_ w->fd); |
1451 | fd_change (EV_A_ w->fd); |
1280 | } |
1452 | } |
1281 | |
1453 | |
1282 | void |
1454 | void |
1283 | ev_timer_start (EV_P_ struct ev_timer *w) |
1455 | ev_timer_start (EV_P_ ev_timer *w) |
1284 | { |
1456 | { |
1285 | if (ev_is_active (w)) |
1457 | if (expect_false (ev_is_active (w))) |
1286 | return; |
1458 | return; |
1287 | |
1459 | |
1288 | ((WT)w)->at += mn_now; |
1460 | ((WT)w)->at += mn_now; |
1289 | |
1461 | |
1290 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1462 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1291 | |
1463 | |
1292 | ev_start (EV_A_ (W)w, ++timercnt); |
1464 | ev_start (EV_A_ (W)w, ++timercnt); |
1293 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1465 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1294 | timers [timercnt - 1] = w; |
1466 | timers [timercnt - 1] = w; |
1295 | upheap ((WT *)timers, timercnt - 1); |
1467 | upheap ((WT *)timers, timercnt - 1); |
1296 | |
1468 | |
1297 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1469 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1298 | } |
1470 | } |
1299 | |
1471 | |
1300 | void |
1472 | void |
1301 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1473 | ev_timer_stop (EV_P_ ev_timer *w) |
1302 | { |
1474 | { |
1303 | ev_clear_pending (EV_A_ (W)w); |
1475 | ev_clear_pending (EV_A_ (W)w); |
1304 | if (!ev_is_active (w)) |
1476 | if (expect_false (!ev_is_active (w))) |
1305 | return; |
1477 | return; |
1306 | |
1478 | |
1307 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1479 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1308 | |
1480 | |
1309 | if (((W)w)->active < timercnt--) |
1481 | if (expect_true (((W)w)->active < timercnt--)) |
1310 | { |
1482 | { |
1311 | timers [((W)w)->active - 1] = timers [timercnt]; |
1483 | timers [((W)w)->active - 1] = timers [timercnt]; |
1312 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1484 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1313 | } |
1485 | } |
1314 | |
1486 | |
1315 | ((WT)w)->at = w->repeat; |
1487 | ((WT)w)->at -= mn_now; |
1316 | |
1488 | |
1317 | ev_stop (EV_A_ (W)w); |
1489 | ev_stop (EV_A_ (W)w); |
1318 | } |
1490 | } |
1319 | |
1491 | |
1320 | void |
1492 | void |
1321 | ev_timer_again (EV_P_ struct ev_timer *w) |
1493 | ev_timer_again (EV_P_ ev_timer *w) |
1322 | { |
1494 | { |
1323 | if (ev_is_active (w)) |
1495 | if (ev_is_active (w)) |
1324 | { |
1496 | { |
1325 | if (w->repeat) |
1497 | if (w->repeat) |
1326 | { |
1498 | { |
1327 | ((WT)w)->at = mn_now + w->repeat; |
1499 | ((WT)w)->at = mn_now + w->repeat; |
1328 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1500 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1329 | } |
1501 | } |
1330 | else |
1502 | else |
1331 | ev_timer_stop (EV_A_ w); |
1503 | ev_timer_stop (EV_A_ w); |
1332 | } |
1504 | } |
1333 | else if (w->repeat) |
1505 | else if (w->repeat) |
|
|
1506 | { |
|
|
1507 | w->at = w->repeat; |
1334 | ev_timer_start (EV_A_ w); |
1508 | ev_timer_start (EV_A_ w); |
|
|
1509 | } |
1335 | } |
1510 | } |
1336 | |
1511 | |
|
|
1512 | #if EV_PERIODIC_ENABLE |
1337 | void |
1513 | void |
1338 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1514 | ev_periodic_start (EV_P_ ev_periodic *w) |
1339 | { |
1515 | { |
1340 | if (ev_is_active (w)) |
1516 | if (expect_false (ev_is_active (w))) |
1341 | return; |
1517 | return; |
1342 | |
1518 | |
1343 | if (w->reschedule_cb) |
1519 | if (w->reschedule_cb) |
1344 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
1520 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
1345 | else if (w->interval) |
1521 | else if (w->interval) |
1346 | { |
1522 | { |
1347 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1523 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1348 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1524 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1349 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1525 | ((WT)w)->at += ceil ((ev_rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1350 | } |
1526 | } |
1351 | |
1527 | |
1352 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1528 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1353 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1529 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1354 | periodics [periodiccnt - 1] = w; |
1530 | periodics [periodiccnt - 1] = w; |
1355 | upheap ((WT *)periodics, periodiccnt - 1); |
1531 | upheap ((WT *)periodics, periodiccnt - 1); |
1356 | |
1532 | |
1357 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1533 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1358 | } |
1534 | } |
1359 | |
1535 | |
1360 | void |
1536 | void |
1361 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1537 | ev_periodic_stop (EV_P_ ev_periodic *w) |
1362 | { |
1538 | { |
1363 | ev_clear_pending (EV_A_ (W)w); |
1539 | ev_clear_pending (EV_A_ (W)w); |
1364 | if (!ev_is_active (w)) |
1540 | if (expect_false (!ev_is_active (w))) |
1365 | return; |
1541 | return; |
1366 | |
1542 | |
1367 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1543 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1368 | |
1544 | |
1369 | if (((W)w)->active < periodiccnt--) |
1545 | if (expect_true (((W)w)->active < periodiccnt--)) |
1370 | { |
1546 | { |
1371 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1547 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1372 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1548 | adjustheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1373 | } |
1549 | } |
1374 | |
1550 | |
1375 | ev_stop (EV_A_ (W)w); |
1551 | ev_stop (EV_A_ (W)w); |
1376 | } |
1552 | } |
1377 | |
1553 | |
1378 | void |
1554 | void |
1379 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
1555 | ev_periodic_again (EV_P_ ev_periodic *w) |
1380 | { |
1556 | { |
|
|
1557 | /* TODO: use adjustheap and recalculation */ |
1381 | ev_periodic_stop (EV_A_ w); |
1558 | ev_periodic_stop (EV_A_ w); |
1382 | ev_periodic_start (EV_A_ w); |
1559 | ev_periodic_start (EV_A_ w); |
1383 | } |
1560 | } |
1384 | |
1561 | #endif |
1385 | void |
|
|
1386 | ev_idle_start (EV_P_ struct ev_idle *w) |
|
|
1387 | { |
|
|
1388 | if (ev_is_active (w)) |
|
|
1389 | return; |
|
|
1390 | |
|
|
1391 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1392 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1393 | idles [idlecnt - 1] = w; |
|
|
1394 | } |
|
|
1395 | |
|
|
1396 | void |
|
|
1397 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1398 | { |
|
|
1399 | ev_clear_pending (EV_A_ (W)w); |
|
|
1400 | if (ev_is_active (w)) |
|
|
1401 | return; |
|
|
1402 | |
|
|
1403 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1404 | ev_stop (EV_A_ (W)w); |
|
|
1405 | } |
|
|
1406 | |
|
|
1407 | void |
|
|
1408 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1409 | { |
|
|
1410 | if (ev_is_active (w)) |
|
|
1411 | return; |
|
|
1412 | |
|
|
1413 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1414 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1415 | prepares [preparecnt - 1] = w; |
|
|
1416 | } |
|
|
1417 | |
|
|
1418 | void |
|
|
1419 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1420 | { |
|
|
1421 | ev_clear_pending (EV_A_ (W)w); |
|
|
1422 | if (ev_is_active (w)) |
|
|
1423 | return; |
|
|
1424 | |
|
|
1425 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1426 | ev_stop (EV_A_ (W)w); |
|
|
1427 | } |
|
|
1428 | |
|
|
1429 | void |
|
|
1430 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1431 | { |
|
|
1432 | if (ev_is_active (w)) |
|
|
1433 | return; |
|
|
1434 | |
|
|
1435 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1436 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1437 | checks [checkcnt - 1] = w; |
|
|
1438 | } |
|
|
1439 | |
|
|
1440 | void |
|
|
1441 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1442 | { |
|
|
1443 | ev_clear_pending (EV_A_ (W)w); |
|
|
1444 | if (ev_is_active (w)) |
|
|
1445 | return; |
|
|
1446 | |
|
|
1447 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1448 | ev_stop (EV_A_ (W)w); |
|
|
1449 | } |
|
|
1450 | |
1562 | |
1451 | #ifndef SA_RESTART |
1563 | #ifndef SA_RESTART |
1452 | # define SA_RESTART 0 |
1564 | # define SA_RESTART 0 |
1453 | #endif |
1565 | #endif |
1454 | |
1566 | |
1455 | void |
1567 | void |
1456 | ev_signal_start (EV_P_ struct ev_signal *w) |
1568 | ev_signal_start (EV_P_ ev_signal *w) |
1457 | { |
1569 | { |
1458 | #if EV_MULTIPLICITY |
1570 | #if EV_MULTIPLICITY |
1459 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1571 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1460 | #endif |
1572 | #endif |
1461 | if (ev_is_active (w)) |
1573 | if (expect_false (ev_is_active (w))) |
1462 | return; |
1574 | return; |
1463 | |
1575 | |
1464 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1576 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1465 | |
1577 | |
1466 | ev_start (EV_A_ (W)w, 1); |
1578 | ev_start (EV_A_ (W)w, 1); |
1467 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1579 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
1468 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1580 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1469 | |
1581 | |
1470 | if (!((WL)w)->next) |
1582 | if (!((WL)w)->next) |
1471 | { |
1583 | { |
1472 | #if WIN32 |
1584 | #if _WIN32 |
1473 | signal (w->signum, sighandler); |
1585 | signal (w->signum, sighandler); |
1474 | #else |
1586 | #else |
1475 | struct sigaction sa; |
1587 | struct sigaction sa; |
1476 | sa.sa_handler = sighandler; |
1588 | sa.sa_handler = sighandler; |
1477 | sigfillset (&sa.sa_mask); |
1589 | sigfillset (&sa.sa_mask); |
… | |
… | |
1480 | #endif |
1592 | #endif |
1481 | } |
1593 | } |
1482 | } |
1594 | } |
1483 | |
1595 | |
1484 | void |
1596 | void |
1485 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1597 | ev_signal_stop (EV_P_ ev_signal *w) |
1486 | { |
1598 | { |
1487 | ev_clear_pending (EV_A_ (W)w); |
1599 | ev_clear_pending (EV_A_ (W)w); |
1488 | if (!ev_is_active (w)) |
1600 | if (expect_false (!ev_is_active (w))) |
1489 | return; |
1601 | return; |
1490 | |
1602 | |
1491 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1603 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1492 | ev_stop (EV_A_ (W)w); |
1604 | ev_stop (EV_A_ (W)w); |
1493 | |
1605 | |
1494 | if (!signals [w->signum - 1].head) |
1606 | if (!signals [w->signum - 1].head) |
1495 | signal (w->signum, SIG_DFL); |
1607 | signal (w->signum, SIG_DFL); |
1496 | } |
1608 | } |
1497 | |
1609 | |
1498 | void |
1610 | void |
1499 | ev_child_start (EV_P_ struct ev_child *w) |
1611 | ev_child_start (EV_P_ ev_child *w) |
1500 | { |
1612 | { |
1501 | #if EV_MULTIPLICITY |
1613 | #if EV_MULTIPLICITY |
1502 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1614 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1503 | #endif |
1615 | #endif |
1504 | if (ev_is_active (w)) |
1616 | if (expect_false (ev_is_active (w))) |
1505 | return; |
1617 | return; |
1506 | |
1618 | |
1507 | ev_start (EV_A_ (W)w, 1); |
1619 | ev_start (EV_A_ (W)w, 1); |
1508 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1620 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1509 | } |
1621 | } |
1510 | |
1622 | |
1511 | void |
1623 | void |
1512 | ev_child_stop (EV_P_ struct ev_child *w) |
1624 | ev_child_stop (EV_P_ ev_child *w) |
1513 | { |
1625 | { |
1514 | ev_clear_pending (EV_A_ (W)w); |
1626 | ev_clear_pending (EV_A_ (W)w); |
1515 | if (ev_is_active (w)) |
1627 | if (expect_false (!ev_is_active (w))) |
1516 | return; |
1628 | return; |
1517 | |
1629 | |
1518 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1630 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1519 | ev_stop (EV_A_ (W)w); |
1631 | ev_stop (EV_A_ (W)w); |
1520 | } |
1632 | } |
1521 | |
1633 | |
|
|
1634 | #if EV_STAT_ENABLE |
|
|
1635 | |
|
|
1636 | # ifdef _WIN32 |
|
|
1637 | # define lstat(a,b) stat(a,b) |
|
|
1638 | # endif |
|
|
1639 | |
|
|
1640 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1641 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1642 | |
|
|
1643 | void |
|
|
1644 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1645 | { |
|
|
1646 | if (lstat (w->path, &w->attr) < 0) |
|
|
1647 | w->attr.st_nlink = 0; |
|
|
1648 | else if (!w->attr.st_nlink) |
|
|
1649 | w->attr.st_nlink = 1; |
|
|
1650 | } |
|
|
1651 | |
|
|
1652 | static void |
|
|
1653 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1654 | { |
|
|
1655 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
1656 | |
|
|
1657 | /* we copy this here each the time so that */ |
|
|
1658 | /* prev has the old value when the callback gets invoked */ |
|
|
1659 | w->prev = w->attr; |
|
|
1660 | ev_stat_stat (EV_A_ w); |
|
|
1661 | |
|
|
1662 | if (memcmp (&w->prev, &w->attr, sizeof (ev_statdata))) |
|
|
1663 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
1664 | } |
|
|
1665 | |
|
|
1666 | void |
|
|
1667 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
1668 | { |
|
|
1669 | if (expect_false (ev_is_active (w))) |
|
|
1670 | return; |
|
|
1671 | |
|
|
1672 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
1673 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
1674 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
1675 | |
|
|
1676 | ev_stat_stat (EV_A_ w); |
|
|
1677 | |
|
|
1678 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
1679 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
1680 | |
|
|
1681 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
1682 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
1683 | ev_timer_start (EV_A_ &w->timer); |
|
|
1684 | |
|
|
1685 | ev_start (EV_A_ (W)w, 1); |
|
|
1686 | } |
|
|
1687 | |
|
|
1688 | void |
|
|
1689 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
1690 | { |
|
|
1691 | ev_clear_pending (EV_A_ (W)w); |
|
|
1692 | if (expect_false (!ev_is_active (w))) |
|
|
1693 | return; |
|
|
1694 | |
|
|
1695 | ev_timer_stop (EV_A_ &w->timer); |
|
|
1696 | |
|
|
1697 | ev_stop (EV_A_ (W)w); |
|
|
1698 | } |
|
|
1699 | #endif |
|
|
1700 | |
|
|
1701 | void |
|
|
1702 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
1703 | { |
|
|
1704 | if (expect_false (ev_is_active (w))) |
|
|
1705 | return; |
|
|
1706 | |
|
|
1707 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1708 | array_needsize (ev_idle *, idles, idlemax, idlecnt, EMPTY2); |
|
|
1709 | idles [idlecnt - 1] = w; |
|
|
1710 | } |
|
|
1711 | |
|
|
1712 | void |
|
|
1713 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
1714 | { |
|
|
1715 | ev_clear_pending (EV_A_ (W)w); |
|
|
1716 | if (expect_false (!ev_is_active (w))) |
|
|
1717 | return; |
|
|
1718 | |
|
|
1719 | { |
|
|
1720 | int active = ((W)w)->active; |
|
|
1721 | idles [active - 1] = idles [--idlecnt]; |
|
|
1722 | ((W)idles [active - 1])->active = active; |
|
|
1723 | } |
|
|
1724 | |
|
|
1725 | ev_stop (EV_A_ (W)w); |
|
|
1726 | } |
|
|
1727 | |
|
|
1728 | void |
|
|
1729 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
1730 | { |
|
|
1731 | if (expect_false (ev_is_active (w))) |
|
|
1732 | return; |
|
|
1733 | |
|
|
1734 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1735 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
1736 | prepares [preparecnt - 1] = w; |
|
|
1737 | } |
|
|
1738 | |
|
|
1739 | void |
|
|
1740 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
1741 | { |
|
|
1742 | ev_clear_pending (EV_A_ (W)w); |
|
|
1743 | if (expect_false (!ev_is_active (w))) |
|
|
1744 | return; |
|
|
1745 | |
|
|
1746 | { |
|
|
1747 | int active = ((W)w)->active; |
|
|
1748 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
1749 | ((W)prepares [active - 1])->active = active; |
|
|
1750 | } |
|
|
1751 | |
|
|
1752 | ev_stop (EV_A_ (W)w); |
|
|
1753 | } |
|
|
1754 | |
|
|
1755 | void |
|
|
1756 | ev_check_start (EV_P_ ev_check *w) |
|
|
1757 | { |
|
|
1758 | if (expect_false (ev_is_active (w))) |
|
|
1759 | return; |
|
|
1760 | |
|
|
1761 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1762 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
1763 | checks [checkcnt - 1] = w; |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | void |
|
|
1767 | ev_check_stop (EV_P_ ev_check *w) |
|
|
1768 | { |
|
|
1769 | ev_clear_pending (EV_A_ (W)w); |
|
|
1770 | if (expect_false (!ev_is_active (w))) |
|
|
1771 | return; |
|
|
1772 | |
|
|
1773 | { |
|
|
1774 | int active = ((W)w)->active; |
|
|
1775 | checks [active - 1] = checks [--checkcnt]; |
|
|
1776 | ((W)checks [active - 1])->active = active; |
|
|
1777 | } |
|
|
1778 | |
|
|
1779 | ev_stop (EV_A_ (W)w); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | #if EV_EMBED_ENABLE |
|
|
1783 | void noinline |
|
|
1784 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
1785 | { |
|
|
1786 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | static void |
|
|
1790 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
1791 | { |
|
|
1792 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
1793 | |
|
|
1794 | if (ev_cb (w)) |
|
|
1795 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
1796 | else |
|
|
1797 | ev_embed_sweep (loop, w); |
|
|
1798 | } |
|
|
1799 | |
|
|
1800 | void |
|
|
1801 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
1802 | { |
|
|
1803 | if (expect_false (ev_is_active (w))) |
|
|
1804 | return; |
|
|
1805 | |
|
|
1806 | { |
|
|
1807 | struct ev_loop *loop = w->loop; |
|
|
1808 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
1809 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
1810 | } |
|
|
1811 | |
|
|
1812 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
1813 | ev_io_start (EV_A_ &w->io); |
|
|
1814 | |
|
|
1815 | ev_start (EV_A_ (W)w, 1); |
|
|
1816 | } |
|
|
1817 | |
|
|
1818 | void |
|
|
1819 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
1820 | { |
|
|
1821 | ev_clear_pending (EV_A_ (W)w); |
|
|
1822 | if (expect_false (!ev_is_active (w))) |
|
|
1823 | return; |
|
|
1824 | |
|
|
1825 | ev_io_stop (EV_A_ &w->io); |
|
|
1826 | |
|
|
1827 | ev_stop (EV_A_ (W)w); |
|
|
1828 | } |
|
|
1829 | #endif |
|
|
1830 | |
1522 | /*****************************************************************************/ |
1831 | /*****************************************************************************/ |
1523 | |
1832 | |
1524 | struct ev_once |
1833 | struct ev_once |
1525 | { |
1834 | { |
1526 | struct ev_io io; |
1835 | ev_io io; |
1527 | struct ev_timer to; |
1836 | ev_timer to; |
1528 | void (*cb)(int revents, void *arg); |
1837 | void (*cb)(int revents, void *arg); |
1529 | void *arg; |
1838 | void *arg; |
1530 | }; |
1839 | }; |
1531 | |
1840 | |
1532 | static void |
1841 | static void |
… | |
… | |
1541 | |
1850 | |
1542 | cb (revents, arg); |
1851 | cb (revents, arg); |
1543 | } |
1852 | } |
1544 | |
1853 | |
1545 | static void |
1854 | static void |
1546 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
1855 | once_cb_io (EV_P_ ev_io *w, int revents) |
1547 | { |
1856 | { |
1548 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1857 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1549 | } |
1858 | } |
1550 | |
1859 | |
1551 | static void |
1860 | static void |
1552 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
1861 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1553 | { |
1862 | { |
1554 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1863 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1555 | } |
1864 | } |
1556 | |
1865 | |
1557 | void |
1866 | void |
1558 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1867 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1559 | { |
1868 | { |
1560 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1869 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1561 | |
1870 | |
1562 | if (!once) |
1871 | if (expect_false (!once)) |
|
|
1872 | { |
1563 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1873 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1564 | else |
1874 | return; |
1565 | { |
1875 | } |
|
|
1876 | |
1566 | once->cb = cb; |
1877 | once->cb = cb; |
1567 | once->arg = arg; |
1878 | once->arg = arg; |
1568 | |
1879 | |
1569 | ev_watcher_init (&once->io, once_cb_io); |
1880 | ev_init (&once->io, once_cb_io); |
1570 | if (fd >= 0) |
1881 | if (fd >= 0) |
1571 | { |
1882 | { |
1572 | ev_io_set (&once->io, fd, events); |
1883 | ev_io_set (&once->io, fd, events); |
1573 | ev_io_start (EV_A_ &once->io); |
1884 | ev_io_start (EV_A_ &once->io); |
1574 | } |
1885 | } |
1575 | |
1886 | |
1576 | ev_watcher_init (&once->to, once_cb_to); |
1887 | ev_init (&once->to, once_cb_to); |
1577 | if (timeout >= 0.) |
1888 | if (timeout >= 0.) |
1578 | { |
1889 | { |
1579 | ev_timer_set (&once->to, timeout, 0.); |
1890 | ev_timer_set (&once->to, timeout, 0.); |
1580 | ev_timer_start (EV_A_ &once->to); |
1891 | ev_timer_start (EV_A_ &once->to); |
1581 | } |
|
|
1582 | } |
1892 | } |
1583 | } |
1893 | } |
1584 | |
1894 | |
|
|
1895 | #ifdef __cplusplus |
|
|
1896 | } |
|
|
1897 | #endif |
|
|
1898 | |