… | |
… | |
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 |
|
|
97 | # endif |
|
|
98 | |
|
|
99 | # ifndef EV_USE_INOTIFY |
|
|
100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
|
|
101 | # define EV_USE_INOTIFY 1 |
|
|
102 | # else |
|
|
103 | # define EV_USE_INOTIFY 0 |
|
|
104 | # endif |
53 | # endif |
105 | # endif |
54 | |
106 | |
55 | #endif |
107 | #endif |
56 | |
108 | |
57 | #include <math.h> |
109 | #include <math.h> |
… | |
… | |
66 | #include <sys/types.h> |
118 | #include <sys/types.h> |
67 | #include <time.h> |
119 | #include <time.h> |
68 | |
120 | |
69 | #include <signal.h> |
121 | #include <signal.h> |
70 | |
122 | |
|
|
123 | #ifdef EV_H |
|
|
124 | # include EV_H |
|
|
125 | #else |
|
|
126 | # include "ev.h" |
|
|
127 | #endif |
|
|
128 | |
71 | #ifndef WIN32 |
129 | #ifndef _WIN32 |
72 | # include <unistd.h> |
|
|
73 | # include <sys/time.h> |
130 | # include <sys/time.h> |
74 | # include <sys/wait.h> |
131 | # include <sys/wait.h> |
|
|
132 | # include <unistd.h> |
|
|
133 | #else |
|
|
134 | # define WIN32_LEAN_AND_MEAN |
|
|
135 | # include <windows.h> |
|
|
136 | # ifndef EV_SELECT_IS_WINSOCKET |
|
|
137 | # define EV_SELECT_IS_WINSOCKET 1 |
75 | #endif |
138 | # endif |
|
|
139 | #endif |
|
|
140 | |
76 | /**/ |
141 | /**/ |
77 | |
142 | |
78 | #ifndef EV_USE_MONOTONIC |
143 | #ifndef EV_USE_MONOTONIC |
79 | # define EV_USE_MONOTONIC 1 |
144 | # define EV_USE_MONOTONIC 0 |
|
|
145 | #endif |
|
|
146 | |
|
|
147 | #ifndef EV_USE_REALTIME |
|
|
148 | # define EV_USE_REALTIME 0 |
80 | #endif |
149 | #endif |
81 | |
150 | |
82 | #ifndef EV_USE_SELECT |
151 | #ifndef EV_USE_SELECT |
83 | # define EV_USE_SELECT 1 |
152 | # define EV_USE_SELECT 1 |
84 | #endif |
153 | #endif |
85 | |
154 | |
86 | #ifndef EV_USE_POLL |
155 | #ifndef EV_USE_POLL |
87 | # define EV_USE_POLL 0 /* poll is usually slower than select, and not as well tested */ |
156 | # ifdef _WIN32 |
|
|
157 | # define EV_USE_POLL 0 |
|
|
158 | # else |
|
|
159 | # define EV_USE_POLL 1 |
|
|
160 | # endif |
88 | #endif |
161 | #endif |
89 | |
162 | |
90 | #ifndef EV_USE_EPOLL |
163 | #ifndef EV_USE_EPOLL |
91 | # define EV_USE_EPOLL 0 |
164 | # define EV_USE_EPOLL 0 |
92 | #endif |
165 | #endif |
93 | |
166 | |
94 | #ifndef EV_USE_KQUEUE |
167 | #ifndef EV_USE_KQUEUE |
95 | # define EV_USE_KQUEUE 0 |
168 | # define EV_USE_KQUEUE 0 |
96 | #endif |
169 | #endif |
97 | |
170 | |
|
|
171 | #ifndef EV_USE_PORT |
|
|
172 | # define EV_USE_PORT 0 |
|
|
173 | #endif |
|
|
174 | |
98 | #ifndef EV_USE_WIN32 |
175 | #ifndef EV_USE_INOTIFY |
99 | # ifdef WIN32 |
176 | # define EV_USE_INOTIFY 0 |
100 | # define EV_USE_WIN32 0 /* it does not exist, use select */ |
177 | #endif |
101 | # undef EV_USE_SELECT |
178 | |
102 | # define EV_USE_SELECT 1 |
179 | #ifndef EV_PID_HASHSIZE |
|
|
180 | # if EV_MINIMAL |
|
|
181 | # define EV_PID_HASHSIZE 1 |
103 | # else |
182 | # else |
104 | # define EV_USE_WIN32 0 |
183 | # define EV_PID_HASHSIZE 16 |
105 | # endif |
184 | # endif |
106 | #endif |
185 | #endif |
107 | |
186 | |
108 | #ifndef EV_USE_REALTIME |
187 | #ifndef EV_INOTIFY_HASHSIZE |
109 | # define EV_USE_REALTIME 1 |
188 | # if EV_MINIMAL |
|
|
189 | # define EV_INOTIFY_HASHSIZE 1 |
|
|
190 | # else |
|
|
191 | # define EV_INOTIFY_HASHSIZE 16 |
|
|
192 | # endif |
110 | #endif |
193 | #endif |
111 | |
194 | |
112 | /**/ |
195 | /**/ |
113 | |
196 | |
114 | #ifndef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
… | |
… | |
119 | #ifndef CLOCK_REALTIME |
202 | #ifndef CLOCK_REALTIME |
120 | # undef EV_USE_REALTIME |
203 | # undef EV_USE_REALTIME |
121 | # define EV_USE_REALTIME 0 |
204 | # define EV_USE_REALTIME 0 |
122 | #endif |
205 | #endif |
123 | |
206 | |
|
|
207 | #if EV_SELECT_IS_WINSOCKET |
|
|
208 | # include <winsock.h> |
|
|
209 | #endif |
|
|
210 | |
|
|
211 | #if !EV_STAT_ENABLE |
|
|
212 | # define EV_USE_INOTIFY 0 |
|
|
213 | #endif |
|
|
214 | |
|
|
215 | #if EV_USE_INOTIFY |
|
|
216 | # include <sys/inotify.h> |
|
|
217 | #endif |
|
|
218 | |
124 | /**/ |
219 | /**/ |
125 | |
220 | |
|
|
221 | /* |
|
|
222 | * This is used to avoid floating point rounding problems. |
|
|
223 | * It is added to ev_rt_now when scheduling periodics |
|
|
224 | * to ensure progress, time-wise, even when rounding |
|
|
225 | * errors are against us. |
|
|
226 | * This value is good at least till the year 4000. |
|
|
227 | * Better solutions welcome. |
|
|
228 | */ |
|
|
229 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
|
|
230 | |
126 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
231 | #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) */ |
232 | #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 */ |
233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
130 | |
|
|
131 | #include "ev.h" |
|
|
132 | |
234 | |
133 | #if __GNUC__ >= 3 |
235 | #if __GNUC__ >= 3 |
134 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
135 | # define inline inline |
237 | # define noinline __attribute__ ((noinline)) |
136 | #else |
238 | #else |
137 | # define expect(expr,value) (expr) |
239 | # define expect(expr,value) (expr) |
138 | # define inline static |
240 | # define noinline |
|
|
241 | # if __STDC_VERSION__ < 199901L |
|
|
242 | # define inline |
|
|
243 | # endif |
139 | #endif |
244 | #endif |
140 | |
245 | |
141 | #define expect_false(expr) expect ((expr) != 0, 0) |
246 | #define expect_false(expr) expect ((expr) != 0, 0) |
142 | #define expect_true(expr) expect ((expr) != 0, 1) |
247 | #define expect_true(expr) expect ((expr) != 0, 1) |
|
|
248 | #define inline_size static inline |
|
|
249 | |
|
|
250 | #if EV_MINIMAL |
|
|
251 | # define inline_speed static noinline |
|
|
252 | #else |
|
|
253 | # define inline_speed static inline |
|
|
254 | #endif |
143 | |
255 | |
144 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
256 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
145 | #define ABSPRI(w) ((w)->priority - EV_MINPRI) |
257 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
146 | |
258 | |
|
|
259 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
|
|
260 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
|
|
261 | |
147 | typedef struct ev_watcher *W; |
262 | typedef ev_watcher *W; |
148 | typedef struct ev_watcher_list *WL; |
263 | typedef ev_watcher_list *WL; |
149 | typedef struct ev_watcher_time *WT; |
264 | typedef ev_watcher_time *WT; |
150 | |
265 | |
151 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
152 | |
267 | |
|
|
268 | #ifdef _WIN32 |
153 | #include "ev_win32.c" |
269 | # include "ev_win32.c" |
|
|
270 | #endif |
154 | |
271 | |
155 | /*****************************************************************************/ |
272 | /*****************************************************************************/ |
156 | |
273 | |
157 | static void (*syserr_cb)(const char *msg); |
274 | static void (*syserr_cb)(const char *msg); |
158 | |
275 | |
|
|
276 | void |
159 | void ev_set_syserr_cb (void (*cb)(const char *msg)) |
277 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
160 | { |
278 | { |
161 | syserr_cb = cb; |
279 | syserr_cb = cb; |
162 | } |
280 | } |
163 | |
281 | |
164 | static void |
282 | static void noinline |
165 | syserr (const char *msg) |
283 | syserr (const char *msg) |
166 | { |
284 | { |
167 | if (!msg) |
285 | if (!msg) |
168 | msg = "(libev) system error"; |
286 | msg = "(libev) system error"; |
169 | |
287 | |
… | |
… | |
176 | } |
294 | } |
177 | } |
295 | } |
178 | |
296 | |
179 | static void *(*alloc)(void *ptr, long size); |
297 | static void *(*alloc)(void *ptr, long size); |
180 | |
298 | |
|
|
299 | void |
181 | void ev_set_allocator (void *(*cb)(void *ptr, long size)) |
300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
182 | { |
301 | { |
183 | alloc = cb; |
302 | alloc = cb; |
184 | } |
303 | } |
185 | |
304 | |
186 | static void * |
305 | inline_speed void * |
187 | ev_realloc (void *ptr, long size) |
306 | ev_realloc (void *ptr, long size) |
188 | { |
307 | { |
189 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
190 | |
309 | |
191 | if (!ptr && size) |
310 | if (!ptr && size) |
… | |
… | |
205 | typedef struct |
324 | typedef struct |
206 | { |
325 | { |
207 | WL head; |
326 | WL head; |
208 | unsigned char events; |
327 | unsigned char events; |
209 | unsigned char reify; |
328 | unsigned char reify; |
|
|
329 | #if EV_SELECT_IS_WINSOCKET |
|
|
330 | SOCKET handle; |
|
|
331 | #endif |
210 | } ANFD; |
332 | } ANFD; |
211 | |
333 | |
212 | typedef struct |
334 | typedef struct |
213 | { |
335 | { |
214 | W w; |
336 | W w; |
215 | int events; |
337 | int events; |
216 | } ANPENDING; |
338 | } ANPENDING; |
217 | |
339 | |
|
|
340 | #if EV_USE_INOTIFY |
|
|
341 | typedef struct |
|
|
342 | { |
|
|
343 | WL head; |
|
|
344 | } ANFS; |
|
|
345 | #endif |
|
|
346 | |
218 | #if EV_MULTIPLICITY |
347 | #if EV_MULTIPLICITY |
219 | |
348 | |
220 | struct ev_loop |
349 | struct ev_loop |
221 | { |
350 | { |
|
|
351 | ev_tstamp ev_rt_now; |
|
|
352 | #define ev_rt_now ((loop)->ev_rt_now) |
222 | # define VAR(name,decl) decl; |
353 | #define VAR(name,decl) decl; |
223 | # include "ev_vars.h" |
354 | #include "ev_vars.h" |
224 | }; |
|
|
225 | # undef VAR |
355 | #undef VAR |
|
|
356 | }; |
226 | # include "ev_wrap.h" |
357 | #include "ev_wrap.h" |
|
|
358 | |
|
|
359 | static struct ev_loop default_loop_struct; |
|
|
360 | struct ev_loop *ev_default_loop_ptr; |
227 | |
361 | |
228 | #else |
362 | #else |
229 | |
363 | |
|
|
364 | ev_tstamp ev_rt_now; |
230 | # define VAR(name,decl) static decl; |
365 | #define VAR(name,decl) static decl; |
231 | # include "ev_vars.h" |
366 | #include "ev_vars.h" |
232 | # undef VAR |
367 | #undef VAR |
|
|
368 | |
|
|
369 | static int ev_default_loop_ptr; |
233 | |
370 | |
234 | #endif |
371 | #endif |
235 | |
372 | |
236 | /*****************************************************************************/ |
373 | /*****************************************************************************/ |
237 | |
374 | |
238 | inline ev_tstamp |
375 | ev_tstamp |
239 | ev_time (void) |
376 | ev_time (void) |
240 | { |
377 | { |
241 | #if EV_USE_REALTIME |
378 | #if EV_USE_REALTIME |
242 | struct timespec ts; |
379 | struct timespec ts; |
243 | clock_gettime (CLOCK_REALTIME, &ts); |
380 | clock_gettime (CLOCK_REALTIME, &ts); |
… | |
… | |
247 | gettimeofday (&tv, 0); |
384 | gettimeofday (&tv, 0); |
248 | return tv.tv_sec + tv.tv_usec * 1e-6; |
385 | return tv.tv_sec + tv.tv_usec * 1e-6; |
249 | #endif |
386 | #endif |
250 | } |
387 | } |
251 | |
388 | |
252 | inline ev_tstamp |
389 | ev_tstamp inline_size |
253 | get_clock (void) |
390 | get_clock (void) |
254 | { |
391 | { |
255 | #if EV_USE_MONOTONIC |
392 | #if EV_USE_MONOTONIC |
256 | if (expect_true (have_monotonic)) |
393 | if (expect_true (have_monotonic)) |
257 | { |
394 | { |
… | |
… | |
262 | #endif |
399 | #endif |
263 | |
400 | |
264 | return ev_time (); |
401 | return ev_time (); |
265 | } |
402 | } |
266 | |
403 | |
|
|
404 | #if EV_MULTIPLICITY |
267 | ev_tstamp |
405 | ev_tstamp |
268 | ev_now (EV_P) |
406 | ev_now (EV_P) |
269 | { |
407 | { |
270 | return rt_now; |
408 | return ev_rt_now; |
271 | } |
409 | } |
|
|
410 | #endif |
272 | |
411 | |
273 | #define array_roundsize(type,n) ((n) | 4 & ~3) |
412 | int inline_size |
|
|
413 | array_nextsize (int elem, int cur, int cnt) |
|
|
414 | { |
|
|
415 | int ncur = cur + 1; |
|
|
416 | |
|
|
417 | do |
|
|
418 | ncur <<= 1; |
|
|
419 | while (cnt > ncur); |
|
|
420 | |
|
|
421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
|
|
422 | if (elem * ncur > 4096) |
|
|
423 | { |
|
|
424 | ncur *= elem; |
|
|
425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
|
|
426 | ncur = ncur - sizeof (void *) * 4; |
|
|
427 | ncur /= elem; |
|
|
428 | } |
|
|
429 | |
|
|
430 | return ncur; |
|
|
431 | } |
|
|
432 | |
|
|
433 | static noinline void * |
|
|
434 | array_realloc (int elem, void *base, int *cur, int cnt) |
|
|
435 | { |
|
|
436 | *cur = array_nextsize (elem, *cur, cnt); |
|
|
437 | return ev_realloc (base, elem * *cur); |
|
|
438 | } |
274 | |
439 | |
275 | #define array_needsize(type,base,cur,cnt,init) \ |
440 | #define array_needsize(type,base,cur,cnt,init) \ |
276 | if (expect_false ((cnt) > cur)) \ |
441 | if (expect_false ((cnt) > (cur))) \ |
277 | { \ |
442 | { \ |
278 | int newcnt = cur; \ |
443 | int ocur_ = (cur); \ |
279 | do \ |
444 | (base) = (type *)array_realloc \ |
280 | { \ |
445 | (sizeof (type), (base), &(cur), (cnt)); \ |
281 | newcnt = array_roundsize (type, newcnt << 1); \ |
446 | init ((base) + (ocur_), (cur) - ocur_); \ |
282 | } \ |
|
|
283 | while ((cnt) > newcnt); \ |
|
|
284 | \ |
|
|
285 | base = (type *)ev_realloc (base, sizeof (type) * (newcnt));\ |
|
|
286 | init (base + cur, newcnt - cur); \ |
|
|
287 | cur = newcnt; \ |
|
|
288 | } |
447 | } |
289 | |
448 | |
|
|
449 | #if 0 |
290 | #define array_slim(type,stem) \ |
450 | #define array_slim(type,stem) \ |
291 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
451 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
292 | { \ |
452 | { \ |
293 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
453 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
294 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
454 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
295 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
455 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
296 | } |
456 | } |
297 | |
457 | #endif |
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 | |
458 | |
303 | #define array_free(stem, idx) \ |
459 | #define array_free(stem, idx) \ |
304 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
305 | |
461 | |
306 | /*****************************************************************************/ |
462 | /*****************************************************************************/ |
307 | |
463 | |
308 | static void |
464 | void noinline |
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|
465 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
466 | { |
|
|
467 | W w_ = (W)w; |
|
|
468 | int pri = ABSPRI (w_); |
|
|
469 | |
|
|
470 | if (expect_false (w_->pending)) |
|
|
471 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
472 | else |
|
|
473 | { |
|
|
474 | w_->pending = ++pendingcnt [pri]; |
|
|
475 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
476 | pendings [pri][w_->pending - 1].w = w_; |
|
|
477 | pendings [pri][w_->pending - 1].events = revents; |
|
|
478 | } |
|
|
479 | } |
|
|
480 | |
|
|
481 | void inline_speed |
|
|
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
483 | { |
|
|
484 | int i; |
|
|
485 | |
|
|
486 | for (i = 0; i < eventcnt; ++i) |
|
|
487 | ev_feed_event (EV_A_ events [i], type); |
|
|
488 | } |
|
|
489 | |
|
|
490 | /*****************************************************************************/ |
|
|
491 | |
|
|
492 | void inline_size |
309 | anfds_init (ANFD *base, int count) |
493 | anfds_init (ANFD *base, int count) |
310 | { |
494 | { |
311 | while (count--) |
495 | while (count--) |
312 | { |
496 | { |
313 | base->head = 0; |
497 | base->head = 0; |
… | |
… | |
316 | |
500 | |
317 | ++base; |
501 | ++base; |
318 | } |
502 | } |
319 | } |
503 | } |
320 | |
504 | |
321 | static void |
505 | void inline_speed |
322 | event (EV_P_ W w, int events) |
|
|
323 | { |
|
|
324 | if (w->pending) |
|
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325 | { |
|
|
326 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
|
|
327 | return; |
|
|
328 | } |
|
|
329 | |
|
|
330 | w->pending = ++pendingcnt [ABSPRI (w)]; |
|
|
331 | array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); |
|
|
332 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
|
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333 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
|
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334 | } |
|
|
335 | |
|
|
336 | static void |
|
|
337 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
338 | { |
|
|
339 | int i; |
|
|
340 | |
|
|
341 | for (i = 0; i < eventcnt; ++i) |
|
|
342 | event (EV_A_ events [i], type); |
|
|
343 | } |
|
|
344 | |
|
|
345 | static void |
|
|
346 | fd_event (EV_P_ int fd, int events) |
506 | fd_event (EV_P_ int fd, int revents) |
347 | { |
507 | { |
348 | ANFD *anfd = anfds + fd; |
508 | ANFD *anfd = anfds + fd; |
349 | struct ev_io *w; |
509 | ev_io *w; |
350 | |
510 | |
351 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
511 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
352 | { |
512 | { |
353 | int ev = w->events & events; |
513 | int ev = w->events & revents; |
354 | |
514 | |
355 | if (ev) |
515 | if (ev) |
356 | event (EV_A_ (W)w, ev); |
516 | ev_feed_event (EV_A_ (W)w, ev); |
357 | } |
517 | } |
358 | } |
518 | } |
359 | |
519 | |
360 | /*****************************************************************************/ |
520 | void |
|
|
521 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
522 | { |
|
|
523 | if (fd >= 0 && fd < anfdmax) |
|
|
524 | fd_event (EV_A_ fd, revents); |
|
|
525 | } |
361 | |
526 | |
362 | static void |
527 | void inline_size |
363 | fd_reify (EV_P) |
528 | fd_reify (EV_P) |
364 | { |
529 | { |
365 | int i; |
530 | int i; |
366 | |
531 | |
367 | for (i = 0; i < fdchangecnt; ++i) |
532 | for (i = 0; i < fdchangecnt; ++i) |
368 | { |
533 | { |
369 | int fd = fdchanges [i]; |
534 | int fd = fdchanges [i]; |
370 | ANFD *anfd = anfds + fd; |
535 | ANFD *anfd = anfds + fd; |
371 | struct ev_io *w; |
536 | ev_io *w; |
372 | |
537 | |
373 | int events = 0; |
538 | int events = 0; |
374 | |
539 | |
375 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
376 | events |= w->events; |
541 | events |= w->events; |
377 | |
542 | |
|
|
543 | #if EV_SELECT_IS_WINSOCKET |
|
|
544 | if (events) |
|
|
545 | { |
|
|
546 | unsigned long argp; |
|
|
547 | anfd->handle = _get_osfhandle (fd); |
|
|
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
549 | } |
|
|
550 | #endif |
|
|
551 | |
378 | anfd->reify = 0; |
552 | anfd->reify = 0; |
379 | |
553 | |
380 | method_modify (EV_A_ fd, anfd->events, events); |
554 | backend_modify (EV_A_ fd, anfd->events, events); |
381 | anfd->events = events; |
555 | anfd->events = events; |
382 | } |
556 | } |
383 | |
557 | |
384 | fdchangecnt = 0; |
558 | fdchangecnt = 0; |
385 | } |
559 | } |
386 | |
560 | |
387 | static void |
561 | void inline_size |
388 | fd_change (EV_P_ int fd) |
562 | fd_change (EV_P_ int fd) |
389 | { |
563 | { |
390 | if (anfds [fd].reify) |
564 | if (expect_false (anfds [fd].reify)) |
391 | return; |
565 | return; |
392 | |
566 | |
393 | anfds [fd].reify = 1; |
567 | anfds [fd].reify = 1; |
394 | |
568 | |
395 | ++fdchangecnt; |
569 | ++fdchangecnt; |
396 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, (void)); |
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
397 | fdchanges [fdchangecnt - 1] = fd; |
571 | fdchanges [fdchangecnt - 1] = fd; |
398 | } |
572 | } |
399 | |
573 | |
400 | static void |
574 | void inline_speed |
401 | fd_kill (EV_P_ int fd) |
575 | fd_kill (EV_P_ int fd) |
402 | { |
576 | { |
403 | struct ev_io *w; |
577 | ev_io *w; |
404 | |
578 | |
405 | while ((w = (struct ev_io *)anfds [fd].head)) |
579 | while ((w = (ev_io *)anfds [fd].head)) |
406 | { |
580 | { |
407 | ev_io_stop (EV_A_ w); |
581 | ev_io_stop (EV_A_ w); |
408 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
582 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
409 | } |
583 | } |
410 | } |
584 | } |
411 | |
585 | |
412 | static int |
586 | int inline_size |
413 | fd_valid (int fd) |
587 | fd_valid (int fd) |
414 | { |
588 | { |
415 | #ifdef WIN32 |
589 | #ifdef _WIN32 |
416 | return !!win32_get_osfhandle (fd); |
590 | return _get_osfhandle (fd) != -1; |
417 | #else |
591 | #else |
418 | return fcntl (fd, F_GETFD) != -1; |
592 | return fcntl (fd, F_GETFD) != -1; |
419 | #endif |
593 | #endif |
420 | } |
594 | } |
421 | |
595 | |
422 | /* called on EBADF to verify fds */ |
596 | /* called on EBADF to verify fds */ |
423 | static void |
597 | static void noinline |
424 | fd_ebadf (EV_P) |
598 | fd_ebadf (EV_P) |
425 | { |
599 | { |
426 | int fd; |
600 | int fd; |
427 | |
601 | |
428 | for (fd = 0; fd < anfdmax; ++fd) |
602 | for (fd = 0; fd < anfdmax; ++fd) |
… | |
… | |
430 | if (!fd_valid (fd) == -1 && errno == EBADF) |
604 | if (!fd_valid (fd) == -1 && errno == EBADF) |
431 | fd_kill (EV_A_ fd); |
605 | fd_kill (EV_A_ fd); |
432 | } |
606 | } |
433 | |
607 | |
434 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
435 | static void |
609 | static void noinline |
436 | fd_enomem (EV_P) |
610 | fd_enomem (EV_P) |
437 | { |
611 | { |
438 | int fd; |
612 | int fd; |
439 | |
613 | |
440 | for (fd = anfdmax; fd--; ) |
614 | for (fd = anfdmax; fd--; ) |
… | |
… | |
443 | fd_kill (EV_A_ fd); |
617 | fd_kill (EV_A_ fd); |
444 | return; |
618 | return; |
445 | } |
619 | } |
446 | } |
620 | } |
447 | |
621 | |
448 | /* usually called after fork if method needs to re-arm all fds from scratch */ |
622 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
449 | static void |
623 | static void noinline |
450 | fd_rearm_all (EV_P) |
624 | fd_rearm_all (EV_P) |
451 | { |
625 | { |
452 | int fd; |
626 | int fd; |
453 | |
627 | |
454 | /* this should be highly optimised to not do anything but set a flag */ |
|
|
455 | for (fd = 0; fd < anfdmax; ++fd) |
628 | for (fd = 0; fd < anfdmax; ++fd) |
456 | if (anfds [fd].events) |
629 | if (anfds [fd].events) |
457 | { |
630 | { |
458 | anfds [fd].events = 0; |
631 | anfds [fd].events = 0; |
459 | fd_change (EV_A_ fd); |
632 | fd_change (EV_A_ fd); |
460 | } |
633 | } |
461 | } |
634 | } |
462 | |
635 | |
463 | /*****************************************************************************/ |
636 | /*****************************************************************************/ |
464 | |
637 | |
465 | static void |
638 | void inline_speed |
466 | upheap (WT *heap, int k) |
639 | upheap (WT *heap, int k) |
467 | { |
640 | { |
468 | WT w = heap [k]; |
641 | WT w = heap [k]; |
469 | |
642 | |
470 | while (k && heap [k >> 1]->at > w->at) |
643 | while (k) |
471 | { |
644 | { |
|
|
645 | int p = (k - 1) >> 1; |
|
|
646 | |
|
|
647 | if (heap [p]->at <= w->at) |
|
|
648 | break; |
|
|
649 | |
472 | heap [k] = heap [k >> 1]; |
650 | heap [k] = heap [p]; |
473 | ((W)heap [k])->active = k + 1; |
651 | ((W)heap [k])->active = k + 1; |
474 | k >>= 1; |
652 | k = p; |
475 | } |
653 | } |
476 | |
654 | |
477 | heap [k] = w; |
655 | heap [k] = w; |
478 | ((W)heap [k])->active = k + 1; |
656 | ((W)heap [k])->active = k + 1; |
479 | |
657 | |
480 | } |
658 | } |
481 | |
659 | |
482 | static void |
660 | void inline_speed |
483 | downheap (WT *heap, int N, int k) |
661 | downheap (WT *heap, int N, int k) |
484 | { |
662 | { |
485 | WT w = heap [k]; |
663 | WT w = heap [k]; |
486 | |
664 | |
487 | while (k < (N >> 1)) |
665 | for (;;) |
488 | { |
666 | { |
489 | int j = k << 1; |
667 | int c = (k << 1) + 1; |
490 | |
668 | |
491 | if (j + 1 < N && heap [j]->at > heap [j + 1]->at) |
669 | if (c >= N) |
492 | ++j; |
|
|
493 | |
|
|
494 | if (w->at <= heap [j]->at) |
|
|
495 | break; |
670 | break; |
496 | |
671 | |
|
|
672 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
673 | ? 1 : 0; |
|
|
674 | |
|
|
675 | if (w->at <= heap [c]->at) |
|
|
676 | break; |
|
|
677 | |
497 | heap [k] = heap [j]; |
678 | heap [k] = heap [c]; |
498 | ((W)heap [k])->active = k + 1; |
679 | ((W)heap [k])->active = k + 1; |
|
|
680 | |
499 | k = j; |
681 | k = c; |
500 | } |
682 | } |
501 | |
683 | |
502 | heap [k] = w; |
684 | heap [k] = w; |
503 | ((W)heap [k])->active = k + 1; |
685 | ((W)heap [k])->active = k + 1; |
|
|
686 | } |
|
|
687 | |
|
|
688 | void inline_size |
|
|
689 | adjustheap (WT *heap, int N, int k) |
|
|
690 | { |
|
|
691 | upheap (heap, k); |
|
|
692 | downheap (heap, N, k); |
504 | } |
693 | } |
505 | |
694 | |
506 | /*****************************************************************************/ |
695 | /*****************************************************************************/ |
507 | |
696 | |
508 | typedef struct |
697 | typedef struct |
… | |
… | |
514 | static ANSIG *signals; |
703 | static ANSIG *signals; |
515 | static int signalmax; |
704 | static int signalmax; |
516 | |
705 | |
517 | static int sigpipe [2]; |
706 | static int sigpipe [2]; |
518 | static sig_atomic_t volatile gotsig; |
707 | static sig_atomic_t volatile gotsig; |
519 | static struct ev_io sigev; |
708 | static ev_io sigev; |
520 | |
709 | |
521 | static void |
710 | void inline_size |
522 | signals_init (ANSIG *base, int count) |
711 | signals_init (ANSIG *base, int count) |
523 | { |
712 | { |
524 | while (count--) |
713 | while (count--) |
525 | { |
714 | { |
526 | base->head = 0; |
715 | base->head = 0; |
… | |
… | |
531 | } |
720 | } |
532 | |
721 | |
533 | static void |
722 | static void |
534 | sighandler (int signum) |
723 | sighandler (int signum) |
535 | { |
724 | { |
536 | #if WIN32 |
725 | #if _WIN32 |
537 | signal (signum, sighandler); |
726 | signal (signum, sighandler); |
538 | #endif |
727 | #endif |
539 | |
728 | |
540 | signals [signum - 1].gotsig = 1; |
729 | signals [signum - 1].gotsig = 1; |
541 | |
730 | |
542 | if (!gotsig) |
731 | if (!gotsig) |
543 | { |
732 | { |
544 | int old_errno = errno; |
733 | int old_errno = errno; |
545 | gotsig = 1; |
734 | gotsig = 1; |
546 | #ifdef WIN32 |
|
|
547 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
548 | #else |
|
|
549 | write (sigpipe [1], &signum, 1); |
735 | write (sigpipe [1], &signum, 1); |
550 | #endif |
|
|
551 | errno = old_errno; |
736 | errno = old_errno; |
552 | } |
737 | } |
553 | } |
738 | } |
554 | |
739 | |
|
|
740 | void noinline |
|
|
741 | ev_feed_signal_event (EV_P_ int signum) |
|
|
742 | { |
|
|
743 | WL w; |
|
|
744 | |
|
|
745 | #if EV_MULTIPLICITY |
|
|
746 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | --signum; |
|
|
750 | |
|
|
751 | if (signum < 0 || signum >= signalmax) |
|
|
752 | return; |
|
|
753 | |
|
|
754 | signals [signum].gotsig = 0; |
|
|
755 | |
|
|
756 | for (w = signals [signum].head; w; w = w->next) |
|
|
757 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
758 | } |
|
|
759 | |
555 | static void |
760 | static void |
556 | sigcb (EV_P_ struct ev_io *iow, int revents) |
761 | sigcb (EV_P_ ev_io *iow, int revents) |
557 | { |
762 | { |
558 | WL w; |
|
|
559 | int signum; |
763 | int signum; |
560 | |
764 | |
561 | #ifdef WIN32 |
|
|
562 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
563 | #else |
|
|
564 | read (sigpipe [0], &revents, 1); |
765 | read (sigpipe [0], &revents, 1); |
565 | #endif |
|
|
566 | gotsig = 0; |
766 | gotsig = 0; |
567 | |
767 | |
568 | for (signum = signalmax; signum--; ) |
768 | for (signum = signalmax; signum--; ) |
569 | if (signals [signum].gotsig) |
769 | if (signals [signum].gotsig) |
570 | { |
770 | ev_feed_signal_event (EV_A_ signum + 1); |
571 | signals [signum].gotsig = 0; |
|
|
572 | |
|
|
573 | for (w = signals [signum].head; w; w = w->next) |
|
|
574 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
575 | } |
|
|
576 | } |
771 | } |
577 | |
772 | |
578 | static void |
773 | void inline_speed |
|
|
774 | fd_intern (int fd) |
|
|
775 | { |
|
|
776 | #ifdef _WIN32 |
|
|
777 | int arg = 1; |
|
|
778 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
779 | #else |
|
|
780 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
781 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
782 | #endif |
|
|
783 | } |
|
|
784 | |
|
|
785 | static void noinline |
579 | siginit (EV_P) |
786 | siginit (EV_P) |
580 | { |
787 | { |
581 | #ifndef WIN32 |
788 | fd_intern (sigpipe [0]); |
582 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
789 | fd_intern (sigpipe [1]); |
583 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
584 | |
|
|
585 | /* rather than sort out wether we really need nb, set it */ |
|
|
586 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
|
|
587 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
|
|
588 | #endif |
|
|
589 | |
790 | |
590 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
791 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
591 | ev_io_start (EV_A_ &sigev); |
792 | ev_io_start (EV_A_ &sigev); |
592 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
793 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
593 | } |
794 | } |
594 | |
795 | |
595 | /*****************************************************************************/ |
796 | /*****************************************************************************/ |
596 | |
797 | |
597 | static struct ev_child *childs [PID_HASHSIZE]; |
798 | static ev_child *childs [EV_PID_HASHSIZE]; |
598 | |
799 | |
599 | #ifndef WIN32 |
800 | #ifndef _WIN32 |
600 | |
801 | |
601 | static struct ev_signal childev; |
802 | static ev_signal childev; |
|
|
803 | |
|
|
804 | void inline_speed |
|
|
805 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
806 | { |
|
|
807 | ev_child *w; |
|
|
808 | |
|
|
809 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
810 | if (w->pid == pid || !w->pid) |
|
|
811 | { |
|
|
812 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
|
|
813 | w->rpid = pid; |
|
|
814 | w->rstatus = status; |
|
|
815 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
|
|
816 | } |
|
|
817 | } |
602 | |
818 | |
603 | #ifndef WCONTINUED |
819 | #ifndef WCONTINUED |
604 | # define WCONTINUED 0 |
820 | # define WCONTINUED 0 |
605 | #endif |
821 | #endif |
606 | |
822 | |
607 | static void |
823 | static void |
608 | child_reap (EV_P_ struct ev_signal *sw, int chain, int pid, int status) |
|
|
609 | { |
|
|
610 | struct ev_child *w; |
|
|
611 | |
|
|
612 | for (w = (struct ev_child *)childs [chain & (PID_HASHSIZE - 1)]; w; w = (struct ev_child *)((WL)w)->next) |
|
|
613 | if (w->pid == pid || !w->pid) |
|
|
614 | { |
|
|
615 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
|
|
616 | w->rpid = pid; |
|
|
617 | w->rstatus = status; |
|
|
618 | event (EV_A_ (W)w, EV_CHILD); |
|
|
619 | } |
|
|
620 | } |
|
|
621 | |
|
|
622 | static void |
|
|
623 | childcb (EV_P_ struct ev_signal *sw, int revents) |
824 | childcb (EV_P_ ev_signal *sw, int revents) |
624 | { |
825 | { |
625 | int pid, status; |
826 | int pid, status; |
626 | |
827 | |
|
|
828 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
627 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
829 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
628 | { |
830 | if (!WCONTINUED |
|
|
831 | || errno != EINVAL |
|
|
832 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
833 | return; |
|
|
834 | |
629 | /* make sure we are called again until all childs have been reaped */ |
835 | /* make sure we are called again until all childs have been reaped */ |
|
|
836 | /* we need to do it this way so that the callback gets called before we continue */ |
630 | event (EV_A_ (W)sw, EV_SIGNAL); |
837 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
631 | |
838 | |
632 | child_reap (EV_A_ sw, pid, pid, status); |
839 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
840 | if (EV_PID_HASHSIZE > 1) |
633 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
841 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
634 | } |
|
|
635 | } |
842 | } |
636 | |
843 | |
637 | #endif |
844 | #endif |
638 | |
845 | |
639 | /*****************************************************************************/ |
846 | /*****************************************************************************/ |
640 | |
847 | |
|
|
848 | #if EV_USE_PORT |
|
|
849 | # include "ev_port.c" |
|
|
850 | #endif |
641 | #if EV_USE_KQUEUE |
851 | #if EV_USE_KQUEUE |
642 | # include "ev_kqueue.c" |
852 | # include "ev_kqueue.c" |
643 | #endif |
853 | #endif |
644 | #if EV_USE_EPOLL |
854 | #if EV_USE_EPOLL |
645 | # include "ev_epoll.c" |
855 | # include "ev_epoll.c" |
… | |
… | |
662 | { |
872 | { |
663 | return EV_VERSION_MINOR; |
873 | return EV_VERSION_MINOR; |
664 | } |
874 | } |
665 | |
875 | |
666 | /* return true if we are running with elevated privileges and should ignore env variables */ |
876 | /* return true if we are running with elevated privileges and should ignore env variables */ |
667 | static int |
877 | int inline_size |
668 | enable_secure (void) |
878 | enable_secure (void) |
669 | { |
879 | { |
670 | #ifdef WIN32 |
880 | #ifdef _WIN32 |
671 | return 0; |
881 | return 0; |
672 | #else |
882 | #else |
673 | return getuid () != geteuid () |
883 | return getuid () != geteuid () |
674 | || getgid () != getegid (); |
884 | || getgid () != getegid (); |
675 | #endif |
885 | #endif |
676 | } |
886 | } |
677 | |
887 | |
678 | int |
888 | unsigned int |
679 | ev_method (EV_P) |
889 | ev_supported_backends (void) |
680 | { |
890 | { |
681 | return method; |
891 | unsigned int flags = 0; |
682 | } |
|
|
683 | |
892 | |
684 | static void |
893 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
685 | loop_init (EV_P_ int methods) |
894 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
895 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
896 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
897 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
898 | |
|
|
899 | return flags; |
|
|
900 | } |
|
|
901 | |
|
|
902 | unsigned int |
|
|
903 | ev_recommended_backends (void) |
686 | { |
904 | { |
687 | if (!method) |
905 | unsigned int flags = ev_supported_backends (); |
|
|
906 | |
|
|
907 | #ifndef __NetBSD__ |
|
|
908 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
909 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
910 | flags &= ~EVBACKEND_KQUEUE; |
|
|
911 | #endif |
|
|
912 | #ifdef __APPLE__ |
|
|
913 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
914 | flags &= ~EVBACKEND_POLL; |
|
|
915 | #endif |
|
|
916 | |
|
|
917 | return flags; |
|
|
918 | } |
|
|
919 | |
|
|
920 | unsigned int |
|
|
921 | ev_embeddable_backends (void) |
|
|
922 | { |
|
|
923 | return EVBACKEND_EPOLL |
|
|
924 | | EVBACKEND_KQUEUE |
|
|
925 | | EVBACKEND_PORT; |
|
|
926 | } |
|
|
927 | |
|
|
928 | unsigned int |
|
|
929 | ev_backend (EV_P) |
|
|
930 | { |
|
|
931 | return backend; |
|
|
932 | } |
|
|
933 | |
|
|
934 | unsigned int |
|
|
935 | ev_loop_count (EV_P) |
|
|
936 | { |
|
|
937 | return loop_count; |
|
|
938 | } |
|
|
939 | |
|
|
940 | static void noinline |
|
|
941 | loop_init (EV_P_ unsigned int flags) |
|
|
942 | { |
|
|
943 | if (!backend) |
688 | { |
944 | { |
689 | #if EV_USE_MONOTONIC |
945 | #if EV_USE_MONOTONIC |
690 | { |
946 | { |
691 | struct timespec ts; |
947 | struct timespec ts; |
692 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
948 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
693 | have_monotonic = 1; |
949 | have_monotonic = 1; |
694 | } |
950 | } |
695 | #endif |
951 | #endif |
696 | |
952 | |
697 | rt_now = ev_time (); |
953 | ev_rt_now = ev_time (); |
698 | mn_now = get_clock (); |
954 | mn_now = get_clock (); |
699 | now_floor = mn_now; |
955 | now_floor = mn_now; |
700 | rtmn_diff = rt_now - mn_now; |
956 | rtmn_diff = ev_rt_now - mn_now; |
701 | |
957 | |
702 | if (methods == EVMETHOD_AUTO) |
958 | /* pid check not overridable via env */ |
703 | if (!enable_secure () && getenv ("LIBEV_METHODS")) |
959 | #ifndef _WIN32 |
|
|
960 | if (flags & EVFLAG_FORKCHECK) |
|
|
961 | curpid = getpid (); |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | if (!(flags & EVFLAG_NOENV) |
|
|
965 | && !enable_secure () |
|
|
966 | && getenv ("LIBEV_FLAGS")) |
704 | methods = atoi (getenv ("LIBEV_METHODS")); |
967 | flags = atoi (getenv ("LIBEV_FLAGS")); |
705 | else |
|
|
706 | methods = EVMETHOD_ANY; |
|
|
707 | |
968 | |
708 | method = 0; |
969 | if (!(flags & 0x0000ffffUL)) |
|
|
970 | flags |= ev_recommended_backends (); |
|
|
971 | |
|
|
972 | backend = 0; |
|
|
973 | backend_fd = -1; |
709 | #if EV_USE_WIN32 |
974 | #if EV_USE_INOTIFY |
710 | if (!method && (methods & EVMETHOD_WIN32 )) method = win32_init (EV_A_ methods); |
975 | fs_fd = -2; |
|
|
976 | #endif |
|
|
977 | |
|
|
978 | #if EV_USE_PORT |
|
|
979 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
711 | #endif |
980 | #endif |
712 | #if EV_USE_KQUEUE |
981 | #if EV_USE_KQUEUE |
713 | if (!method && (methods & EVMETHOD_KQUEUE)) method = kqueue_init (EV_A_ methods); |
982 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
714 | #endif |
983 | #endif |
715 | #if EV_USE_EPOLL |
984 | #if EV_USE_EPOLL |
716 | if (!method && (methods & EVMETHOD_EPOLL )) method = epoll_init (EV_A_ methods); |
985 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
717 | #endif |
986 | #endif |
718 | #if EV_USE_POLL |
987 | #if EV_USE_POLL |
719 | if (!method && (methods & EVMETHOD_POLL )) method = poll_init (EV_A_ methods); |
988 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
720 | #endif |
989 | #endif |
721 | #if EV_USE_SELECT |
990 | #if EV_USE_SELECT |
722 | if (!method && (methods & EVMETHOD_SELECT)) method = select_init (EV_A_ methods); |
991 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
723 | #endif |
992 | #endif |
724 | |
993 | |
725 | ev_watcher_init (&sigev, sigcb); |
994 | ev_init (&sigev, sigcb); |
726 | ev_set_priority (&sigev, EV_MAXPRI); |
995 | ev_set_priority (&sigev, EV_MAXPRI); |
727 | } |
996 | } |
728 | } |
997 | } |
729 | |
998 | |
730 | void |
999 | static void noinline |
731 | loop_destroy (EV_P) |
1000 | loop_destroy (EV_P) |
732 | { |
1001 | { |
733 | int i; |
1002 | int i; |
734 | |
1003 | |
735 | #if EV_USE_WIN32 |
1004 | #if EV_USE_INOTIFY |
736 | if (method == EVMETHOD_WIN32 ) win32_destroy (EV_A); |
1005 | if (fs_fd >= 0) |
|
|
1006 | close (fs_fd); |
|
|
1007 | #endif |
|
|
1008 | |
|
|
1009 | if (backend_fd >= 0) |
|
|
1010 | close (backend_fd); |
|
|
1011 | |
|
|
1012 | #if EV_USE_PORT |
|
|
1013 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
737 | #endif |
1014 | #endif |
738 | #if EV_USE_KQUEUE |
1015 | #if EV_USE_KQUEUE |
739 | if (method == EVMETHOD_KQUEUE) kqueue_destroy (EV_A); |
1016 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
740 | #endif |
1017 | #endif |
741 | #if EV_USE_EPOLL |
1018 | #if EV_USE_EPOLL |
742 | if (method == EVMETHOD_EPOLL ) epoll_destroy (EV_A); |
1019 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
743 | #endif |
1020 | #endif |
744 | #if EV_USE_POLL |
1021 | #if EV_USE_POLL |
745 | if (method == EVMETHOD_POLL ) poll_destroy (EV_A); |
1022 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
746 | #endif |
1023 | #endif |
747 | #if EV_USE_SELECT |
1024 | #if EV_USE_SELECT |
748 | if (method == EVMETHOD_SELECT) select_destroy (EV_A); |
1025 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
749 | #endif |
1026 | #endif |
750 | |
1027 | |
751 | for (i = NUMPRI; i--; ) |
1028 | for (i = NUMPRI; i--; ) |
|
|
1029 | { |
752 | array_free (pending, [i]); |
1030 | array_free (pending, [i]); |
|
|
1031 | #if EV_IDLE_ENABLE |
|
|
1032 | array_free (idle, [i]); |
|
|
1033 | #endif |
|
|
1034 | } |
753 | |
1035 | |
754 | /* have to use the microsoft-never-gets-it-right macro */ |
1036 | /* have to use the microsoft-never-gets-it-right macro */ |
755 | array_free_microshit (fdchange); |
1037 | array_free (fdchange, EMPTY); |
756 | array_free_microshit (timer); |
1038 | array_free (timer, EMPTY); |
757 | array_free_microshit (periodic); |
1039 | #if EV_PERIODIC_ENABLE |
758 | array_free_microshit (idle); |
1040 | array_free (periodic, EMPTY); |
759 | array_free_microshit (prepare); |
1041 | #endif |
760 | array_free_microshit (check); |
1042 | array_free (prepare, EMPTY); |
|
|
1043 | array_free (check, EMPTY); |
761 | |
1044 | |
762 | method = 0; |
1045 | backend = 0; |
763 | } |
1046 | } |
764 | |
1047 | |
765 | static void |
1048 | void inline_size infy_fork (EV_P); |
|
|
1049 | |
|
|
1050 | void inline_size |
766 | loop_fork (EV_P) |
1051 | loop_fork (EV_P) |
767 | { |
1052 | { |
|
|
1053 | #if EV_USE_PORT |
|
|
1054 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1055 | #endif |
|
|
1056 | #if EV_USE_KQUEUE |
|
|
1057 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1058 | #endif |
768 | #if EV_USE_EPOLL |
1059 | #if EV_USE_EPOLL |
769 | if (method == EVMETHOD_EPOLL ) epoll_fork (EV_A); |
1060 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
770 | #endif |
1061 | #endif |
771 | #if EV_USE_KQUEUE |
1062 | #if EV_USE_INOTIFY |
772 | if (method == EVMETHOD_KQUEUE) kqueue_fork (EV_A); |
1063 | infy_fork (EV_A); |
773 | #endif |
1064 | #endif |
774 | |
1065 | |
775 | if (ev_is_active (&sigev)) |
1066 | if (ev_is_active (&sigev)) |
776 | { |
1067 | { |
777 | /* default loop */ |
1068 | /* default loop */ |
… | |
… | |
790 | postfork = 0; |
1081 | postfork = 0; |
791 | } |
1082 | } |
792 | |
1083 | |
793 | #if EV_MULTIPLICITY |
1084 | #if EV_MULTIPLICITY |
794 | struct ev_loop * |
1085 | struct ev_loop * |
795 | ev_loop_new (int methods) |
1086 | ev_loop_new (unsigned int flags) |
796 | { |
1087 | { |
797 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
1088 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
798 | |
1089 | |
799 | memset (loop, 0, sizeof (struct ev_loop)); |
1090 | memset (loop, 0, sizeof (struct ev_loop)); |
800 | |
1091 | |
801 | loop_init (EV_A_ methods); |
1092 | loop_init (EV_A_ flags); |
802 | |
1093 | |
803 | if (ev_method (EV_A)) |
1094 | if (ev_backend (EV_A)) |
804 | return loop; |
1095 | return loop; |
805 | |
1096 | |
806 | return 0; |
1097 | return 0; |
807 | } |
1098 | } |
808 | |
1099 | |
… | |
… | |
820 | } |
1111 | } |
821 | |
1112 | |
822 | #endif |
1113 | #endif |
823 | |
1114 | |
824 | #if EV_MULTIPLICITY |
1115 | #if EV_MULTIPLICITY |
825 | struct ev_loop default_loop_struct; |
|
|
826 | static struct ev_loop *default_loop; |
|
|
827 | |
|
|
828 | struct ev_loop * |
1116 | struct ev_loop * |
|
|
1117 | ev_default_loop_init (unsigned int flags) |
829 | #else |
1118 | #else |
830 | static int default_loop; |
|
|
831 | |
|
|
832 | int |
1119 | int |
|
|
1120 | ev_default_loop (unsigned int flags) |
833 | #endif |
1121 | #endif |
834 | ev_default_loop (int methods) |
|
|
835 | { |
1122 | { |
836 | if (sigpipe [0] == sigpipe [1]) |
1123 | if (sigpipe [0] == sigpipe [1]) |
837 | if (pipe (sigpipe)) |
1124 | if (pipe (sigpipe)) |
838 | return 0; |
1125 | return 0; |
839 | |
1126 | |
840 | if (!default_loop) |
1127 | if (!ev_default_loop_ptr) |
841 | { |
1128 | { |
842 | #if EV_MULTIPLICITY |
1129 | #if EV_MULTIPLICITY |
843 | struct ev_loop *loop = default_loop = &default_loop_struct; |
1130 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
844 | #else |
1131 | #else |
845 | default_loop = 1; |
1132 | ev_default_loop_ptr = 1; |
846 | #endif |
1133 | #endif |
847 | |
1134 | |
848 | loop_init (EV_A_ methods); |
1135 | loop_init (EV_A_ flags); |
849 | |
1136 | |
850 | if (ev_method (EV_A)) |
1137 | if (ev_backend (EV_A)) |
851 | { |
1138 | { |
852 | siginit (EV_A); |
1139 | siginit (EV_A); |
853 | |
1140 | |
854 | #ifndef WIN32 |
1141 | #ifndef _WIN32 |
855 | ev_signal_init (&childev, childcb, SIGCHLD); |
1142 | ev_signal_init (&childev, childcb, SIGCHLD); |
856 | ev_set_priority (&childev, EV_MAXPRI); |
1143 | ev_set_priority (&childev, EV_MAXPRI); |
857 | ev_signal_start (EV_A_ &childev); |
1144 | ev_signal_start (EV_A_ &childev); |
858 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
1145 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
859 | #endif |
1146 | #endif |
860 | } |
1147 | } |
861 | else |
1148 | else |
862 | default_loop = 0; |
1149 | ev_default_loop_ptr = 0; |
863 | } |
1150 | } |
864 | |
1151 | |
865 | return default_loop; |
1152 | return ev_default_loop_ptr; |
866 | } |
1153 | } |
867 | |
1154 | |
868 | void |
1155 | void |
869 | ev_default_destroy (void) |
1156 | ev_default_destroy (void) |
870 | { |
1157 | { |
871 | #if EV_MULTIPLICITY |
1158 | #if EV_MULTIPLICITY |
872 | struct ev_loop *loop = default_loop; |
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
873 | #endif |
1160 | #endif |
874 | |
1161 | |
875 | #ifndef WIN32 |
1162 | #ifndef _WIN32 |
876 | ev_ref (EV_A); /* child watcher */ |
1163 | ev_ref (EV_A); /* child watcher */ |
877 | ev_signal_stop (EV_A_ &childev); |
1164 | ev_signal_stop (EV_A_ &childev); |
878 | #endif |
1165 | #endif |
879 | |
1166 | |
880 | ev_ref (EV_A); /* signal watcher */ |
1167 | ev_ref (EV_A); /* signal watcher */ |
… | |
… | |
888 | |
1175 | |
889 | void |
1176 | void |
890 | ev_default_fork (void) |
1177 | ev_default_fork (void) |
891 | { |
1178 | { |
892 | #if EV_MULTIPLICITY |
1179 | #if EV_MULTIPLICITY |
893 | struct ev_loop *loop = default_loop; |
1180 | struct ev_loop *loop = ev_default_loop_ptr; |
894 | #endif |
1181 | #endif |
895 | |
1182 | |
896 | if (method) |
1183 | if (backend) |
897 | postfork = 1; |
1184 | postfork = 1; |
898 | } |
1185 | } |
899 | |
1186 | |
900 | /*****************************************************************************/ |
1187 | /*****************************************************************************/ |
901 | |
1188 | |
902 | static int |
1189 | void |
903 | any_pending (EV_P) |
1190 | ev_invoke (EV_P_ void *w, int revents) |
904 | { |
1191 | { |
905 | int pri; |
1192 | EV_CB_INVOKE ((W)w, revents); |
906 | |
|
|
907 | for (pri = NUMPRI; pri--; ) |
|
|
908 | if (pendingcnt [pri]) |
|
|
909 | return 1; |
|
|
910 | |
|
|
911 | return 0; |
|
|
912 | } |
1193 | } |
913 | |
1194 | |
914 | static void |
1195 | void inline_speed |
915 | call_pending (EV_P) |
1196 | call_pending (EV_P) |
916 | { |
1197 | { |
917 | int pri; |
1198 | int pri; |
918 | |
1199 | |
919 | for (pri = NUMPRI; pri--; ) |
1200 | for (pri = NUMPRI; pri--; ) |
920 | while (pendingcnt [pri]) |
1201 | while (pendingcnt [pri]) |
921 | { |
1202 | { |
922 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
1203 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
923 | |
1204 | |
924 | if (p->w) |
1205 | if (expect_true (p->w)) |
925 | { |
1206 | { |
|
|
1207 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
|
|
1208 | |
926 | p->w->pending = 0; |
1209 | p->w->pending = 0; |
927 | p->w->cb (EV_A_ p->w, p->events); |
1210 | EV_CB_INVOKE (p->w, p->events); |
928 | } |
1211 | } |
929 | } |
1212 | } |
930 | } |
1213 | } |
931 | |
1214 | |
932 | static void |
1215 | void inline_size |
933 | timers_reify (EV_P) |
1216 | timers_reify (EV_P) |
934 | { |
1217 | { |
935 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
1218 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
936 | { |
1219 | { |
937 | struct ev_timer *w = timers [0]; |
1220 | ev_timer *w = timers [0]; |
938 | |
1221 | |
939 | assert (("inactive timer on timer heap detected", ev_is_active (w))); |
1222 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
940 | |
1223 | |
941 | /* first reschedule or stop timer */ |
1224 | /* first reschedule or stop timer */ |
942 | if (w->repeat) |
1225 | if (w->repeat) |
943 | { |
1226 | { |
944 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
1227 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
|
|
1228 | |
945 | ((WT)w)->at = mn_now + w->repeat; |
1229 | ((WT)w)->at += w->repeat; |
|
|
1230 | if (((WT)w)->at < mn_now) |
|
|
1231 | ((WT)w)->at = mn_now; |
|
|
1232 | |
946 | downheap ((WT *)timers, timercnt, 0); |
1233 | downheap ((WT *)timers, timercnt, 0); |
947 | } |
1234 | } |
948 | else |
1235 | else |
949 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1236 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
950 | |
1237 | |
951 | event (EV_A_ (W)w, EV_TIMEOUT); |
1238 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
952 | } |
1239 | } |
953 | } |
1240 | } |
954 | |
1241 | |
955 | static void |
1242 | #if EV_PERIODIC_ENABLE |
|
|
1243 | void inline_size |
956 | periodics_reify (EV_P) |
1244 | periodics_reify (EV_P) |
957 | { |
1245 | { |
958 | while (periodiccnt && ((WT)periodics [0])->at <= rt_now) |
1246 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
959 | { |
1247 | { |
960 | struct ev_periodic *w = periodics [0]; |
1248 | ev_periodic *w = periodics [0]; |
961 | |
1249 | |
962 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
1250 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
963 | |
1251 | |
964 | /* first reschedule or stop timer */ |
1252 | /* first reschedule or stop timer */ |
965 | if (w->interval) |
1253 | if (w->reschedule_cb) |
966 | { |
1254 | { |
|
|
1255 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
|
|
1256 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1257 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1258 | } |
|
|
1259 | else if (w->interval) |
|
|
1260 | { |
967 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
1261 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1262 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
968 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
1263 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
969 | downheap ((WT *)periodics, periodiccnt, 0); |
1264 | downheap ((WT *)periodics, periodiccnt, 0); |
970 | } |
1265 | } |
971 | else |
1266 | else |
972 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1267 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
973 | |
1268 | |
974 | event (EV_A_ (W)w, EV_PERIODIC); |
1269 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
975 | } |
1270 | } |
976 | } |
1271 | } |
977 | |
1272 | |
978 | static void |
1273 | static void noinline |
979 | periodics_reschedule (EV_P) |
1274 | periodics_reschedule (EV_P) |
980 | { |
1275 | { |
981 | int i; |
1276 | int i; |
982 | |
1277 | |
983 | /* adjust periodics after time jump */ |
1278 | /* adjust periodics after time jump */ |
984 | for (i = 0; i < periodiccnt; ++i) |
1279 | for (i = 0; i < periodiccnt; ++i) |
985 | { |
1280 | { |
986 | struct ev_periodic *w = periodics [i]; |
1281 | ev_periodic *w = periodics [i]; |
987 | |
1282 | |
|
|
1283 | if (w->reschedule_cb) |
|
|
1284 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
988 | if (w->interval) |
1285 | else if (w->interval) |
|
|
1286 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1287 | } |
|
|
1288 | |
|
|
1289 | /* now rebuild the heap */ |
|
|
1290 | for (i = periodiccnt >> 1; i--; ) |
|
|
1291 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1292 | } |
|
|
1293 | #endif |
|
|
1294 | |
|
|
1295 | #if EV_IDLE_ENABLE |
|
|
1296 | void inline_size |
|
|
1297 | idle_reify (EV_P) |
|
|
1298 | { |
|
|
1299 | if (expect_false (idleall)) |
|
|
1300 | { |
|
|
1301 | int pri; |
|
|
1302 | |
|
|
1303 | for (pri = NUMPRI; pri--; ) |
989 | { |
1304 | { |
990 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1305 | if (pendingcnt [pri]) |
|
|
1306 | break; |
991 | |
1307 | |
992 | if (fabs (diff) >= 1e-4) |
1308 | if (idlecnt [pri]) |
993 | { |
1309 | { |
994 | ev_periodic_stop (EV_A_ w); |
1310 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
995 | ev_periodic_start (EV_A_ w); |
1311 | break; |
996 | |
|
|
997 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
998 | } |
1312 | } |
999 | } |
1313 | } |
1000 | } |
1314 | } |
1001 | } |
1315 | } |
|
|
1316 | #endif |
1002 | |
1317 | |
1003 | inline int |
1318 | void inline_speed |
1004 | time_update_monotonic (EV_P) |
1319 | time_update (EV_P_ ev_tstamp max_block) |
1005 | { |
|
|
1006 | mn_now = get_clock (); |
|
|
1007 | |
|
|
1008 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1009 | { |
|
|
1010 | rt_now = rtmn_diff + mn_now; |
|
|
1011 | return 0; |
|
|
1012 | } |
|
|
1013 | else |
|
|
1014 | { |
|
|
1015 | now_floor = mn_now; |
|
|
1016 | rt_now = ev_time (); |
|
|
1017 | return 1; |
|
|
1018 | } |
|
|
1019 | } |
|
|
1020 | |
|
|
1021 | static void |
|
|
1022 | time_update (EV_P) |
|
|
1023 | { |
1320 | { |
1024 | int i; |
1321 | int i; |
1025 | |
1322 | |
1026 | #if EV_USE_MONOTONIC |
1323 | #if EV_USE_MONOTONIC |
1027 | if (expect_true (have_monotonic)) |
1324 | if (expect_true (have_monotonic)) |
1028 | { |
1325 | { |
1029 | if (time_update_monotonic (EV_A)) |
1326 | ev_tstamp odiff = rtmn_diff; |
|
|
1327 | |
|
|
1328 | mn_now = get_clock (); |
|
|
1329 | |
|
|
1330 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1331 | /* interpolate in the meantime */ |
|
|
1332 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
1030 | { |
1333 | { |
1031 | ev_tstamp odiff = rtmn_diff; |
1334 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1335 | return; |
|
|
1336 | } |
1032 | |
1337 | |
|
|
1338 | now_floor = mn_now; |
|
|
1339 | ev_rt_now = ev_time (); |
|
|
1340 | |
1033 | for (i = 4; --i; ) /* loop a few times, before making important decisions */ |
1341 | /* loop a few times, before making important decisions. |
|
|
1342 | * on the choice of "4": one iteration isn't enough, |
|
|
1343 | * in case we get preempted during the calls to |
|
|
1344 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1345 | * to succeed in that case, though. and looping a few more times |
|
|
1346 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1347 | * in the unlikely event of having been preempted here. |
|
|
1348 | */ |
|
|
1349 | for (i = 4; --i; ) |
1034 | { |
1350 | { |
1035 | rtmn_diff = rt_now - mn_now; |
1351 | rtmn_diff = ev_rt_now - mn_now; |
1036 | |
1352 | |
1037 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1353 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
1038 | return; /* all is well */ |
1354 | return; /* all is well */ |
1039 | |
1355 | |
1040 | rt_now = ev_time (); |
1356 | ev_rt_now = ev_time (); |
1041 | mn_now = get_clock (); |
1357 | mn_now = get_clock (); |
1042 | now_floor = mn_now; |
1358 | now_floor = mn_now; |
1043 | } |
1359 | } |
1044 | |
1360 | |
|
|
1361 | # if EV_PERIODIC_ENABLE |
|
|
1362 | periodics_reschedule (EV_A); |
|
|
1363 | # endif |
|
|
1364 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1365 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1366 | } |
|
|
1367 | else |
|
|
1368 | #endif |
|
|
1369 | { |
|
|
1370 | ev_rt_now = ev_time (); |
|
|
1371 | |
|
|
1372 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
|
|
1373 | { |
|
|
1374 | #if EV_PERIODIC_ENABLE |
1045 | periodics_reschedule (EV_A); |
1375 | periodics_reschedule (EV_A); |
1046 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
1376 | #endif |
1047 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
1377 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1378 | for (i = 0; i < timercnt; ++i) |
|
|
1379 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
1048 | } |
1380 | } |
1049 | } |
|
|
1050 | else |
|
|
1051 | #endif |
|
|
1052 | { |
|
|
1053 | rt_now = ev_time (); |
|
|
1054 | |
1381 | |
1055 | if (expect_false (mn_now > rt_now || mn_now < rt_now - MAX_BLOCKTIME - MIN_TIMEJUMP)) |
|
|
1056 | { |
|
|
1057 | periodics_reschedule (EV_A); |
|
|
1058 | |
|
|
1059 | /* adjust timers. this is easy, as the offset is the same for all */ |
|
|
1060 | for (i = 0; i < timercnt; ++i) |
|
|
1061 | ((WT)timers [i])->at += rt_now - mn_now; |
|
|
1062 | } |
|
|
1063 | |
|
|
1064 | mn_now = rt_now; |
1382 | mn_now = ev_rt_now; |
1065 | } |
1383 | } |
1066 | } |
1384 | } |
1067 | |
1385 | |
1068 | void |
1386 | void |
1069 | ev_ref (EV_P) |
1387 | ev_ref (EV_P) |
… | |
… | |
1080 | static int loop_done; |
1398 | static int loop_done; |
1081 | |
1399 | |
1082 | void |
1400 | void |
1083 | ev_loop (EV_P_ int flags) |
1401 | ev_loop (EV_P_ int flags) |
1084 | { |
1402 | { |
1085 | double block; |
|
|
1086 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) ? 1 : 0; |
1403 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1404 | ? EVUNLOOP_ONE |
|
|
1405 | : EVUNLOOP_CANCEL; |
|
|
1406 | |
|
|
1407 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
1087 | |
1408 | |
1088 | do |
1409 | do |
1089 | { |
1410 | { |
|
|
1411 | #ifndef _WIN32 |
|
|
1412 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1413 | if (expect_false (getpid () != curpid)) |
|
|
1414 | { |
|
|
1415 | curpid = getpid (); |
|
|
1416 | postfork = 1; |
|
|
1417 | } |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #if EV_FORK_ENABLE |
|
|
1421 | /* we might have forked, so queue fork handlers */ |
|
|
1422 | if (expect_false (postfork)) |
|
|
1423 | if (forkcnt) |
|
|
1424 | { |
|
|
1425 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1426 | call_pending (EV_A); |
|
|
1427 | } |
|
|
1428 | #endif |
|
|
1429 | |
1090 | /* queue check watchers (and execute them) */ |
1430 | /* queue prepare watchers (and execute them) */ |
1091 | if (expect_false (preparecnt)) |
1431 | if (expect_false (preparecnt)) |
1092 | { |
1432 | { |
1093 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1433 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
1094 | call_pending (EV_A); |
1434 | call_pending (EV_A); |
1095 | } |
1435 | } |
1096 | |
1436 | |
|
|
1437 | if (expect_false (!activecnt)) |
|
|
1438 | break; |
|
|
1439 | |
1097 | /* we might have forked, so reify kernel state if necessary */ |
1440 | /* we might have forked, so reify kernel state if necessary */ |
1098 | if (expect_false (postfork)) |
1441 | if (expect_false (postfork)) |
1099 | loop_fork (EV_A); |
1442 | loop_fork (EV_A); |
1100 | |
1443 | |
1101 | /* update fd-related kernel structures */ |
1444 | /* update fd-related kernel structures */ |
1102 | fd_reify (EV_A); |
1445 | fd_reify (EV_A); |
1103 | |
1446 | |
1104 | /* calculate blocking time */ |
1447 | /* calculate blocking time */ |
|
|
1448 | { |
|
|
1449 | ev_tstamp block; |
1105 | |
1450 | |
1106 | /* we only need this for !monotonic clock or timers, but as we basically |
1451 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
1107 | always have timers, we just calculate it always */ |
1452 | block = 0.; /* do not block at all */ |
1108 | #if EV_USE_MONOTONIC |
|
|
1109 | if (expect_true (have_monotonic)) |
|
|
1110 | time_update_monotonic (EV_A); |
|
|
1111 | else |
1453 | else |
1112 | #endif |
|
|
1113 | { |
1454 | { |
1114 | rt_now = ev_time (); |
1455 | /* update time to cancel out callback processing overhead */ |
1115 | mn_now = rt_now; |
1456 | time_update (EV_A_ 1e100); |
1116 | } |
|
|
1117 | |
1457 | |
1118 | if (flags & EVLOOP_NONBLOCK || idlecnt) |
|
|
1119 | block = 0.; |
|
|
1120 | else |
|
|
1121 | { |
|
|
1122 | block = MAX_BLOCKTIME; |
1458 | block = MAX_BLOCKTIME; |
1123 | |
1459 | |
1124 | if (timercnt) |
1460 | if (timercnt) |
1125 | { |
1461 | { |
1126 | ev_tstamp to = ((WT)timers [0])->at - mn_now + method_fudge; |
1462 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
1127 | if (block > to) block = to; |
1463 | if (block > to) block = to; |
1128 | } |
1464 | } |
1129 | |
1465 | |
|
|
1466 | #if EV_PERIODIC_ENABLE |
1130 | if (periodiccnt) |
1467 | if (periodiccnt) |
1131 | { |
1468 | { |
1132 | ev_tstamp to = ((WT)periodics [0])->at - rt_now + method_fudge; |
1469 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
1133 | if (block > to) block = to; |
1470 | if (block > to) block = to; |
1134 | } |
1471 | } |
|
|
1472 | #endif |
1135 | |
1473 | |
1136 | if (block < 0.) block = 0.; |
1474 | if (expect_false (block < 0.)) block = 0.; |
1137 | } |
1475 | } |
1138 | |
1476 | |
|
|
1477 | ++loop_count; |
1139 | method_poll (EV_A_ block); |
1478 | backend_poll (EV_A_ block); |
1140 | |
1479 | |
1141 | /* update rt_now, do magic */ |
1480 | /* update ev_rt_now, do magic */ |
1142 | time_update (EV_A); |
1481 | time_update (EV_A_ block); |
|
|
1482 | } |
1143 | |
1483 | |
1144 | /* queue pending timers and reschedule them */ |
1484 | /* queue pending timers and reschedule them */ |
1145 | timers_reify (EV_A); /* relative timers called last */ |
1485 | timers_reify (EV_A); /* relative timers called last */ |
|
|
1486 | #if EV_PERIODIC_ENABLE |
1146 | periodics_reify (EV_A); /* absolute timers called first */ |
1487 | periodics_reify (EV_A); /* absolute timers called first */ |
|
|
1488 | #endif |
1147 | |
1489 | |
|
|
1490 | #if EV_IDLE_ENABLE |
1148 | /* queue idle watchers unless io or timers are pending */ |
1491 | /* queue idle watchers unless other events are pending */ |
1149 | if (idlecnt && !any_pending (EV_A)) |
1492 | idle_reify (EV_A); |
1150 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1493 | #endif |
1151 | |
1494 | |
1152 | /* queue check watchers, to be executed first */ |
1495 | /* queue check watchers, to be executed first */ |
1153 | if (checkcnt) |
1496 | if (expect_false (checkcnt)) |
1154 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1497 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1155 | |
1498 | |
1156 | call_pending (EV_A); |
1499 | call_pending (EV_A); |
|
|
1500 | |
1157 | } |
1501 | } |
1158 | while (activecnt && !loop_done); |
1502 | while (expect_true (activecnt && !loop_done)); |
1159 | |
1503 | |
1160 | if (loop_done != 2) |
1504 | if (loop_done == EVUNLOOP_ONE) |
1161 | loop_done = 0; |
1505 | loop_done = EVUNLOOP_CANCEL; |
1162 | } |
1506 | } |
1163 | |
1507 | |
1164 | void |
1508 | void |
1165 | ev_unloop (EV_P_ int how) |
1509 | ev_unloop (EV_P_ int how) |
1166 | { |
1510 | { |
1167 | loop_done = how; |
1511 | loop_done = how; |
1168 | } |
1512 | } |
1169 | |
1513 | |
1170 | /*****************************************************************************/ |
1514 | /*****************************************************************************/ |
1171 | |
1515 | |
1172 | inline void |
1516 | void inline_size |
1173 | wlist_add (WL *head, WL elem) |
1517 | wlist_add (WL *head, WL elem) |
1174 | { |
1518 | { |
1175 | elem->next = *head; |
1519 | elem->next = *head; |
1176 | *head = elem; |
1520 | *head = elem; |
1177 | } |
1521 | } |
1178 | |
1522 | |
1179 | inline void |
1523 | void inline_size |
1180 | wlist_del (WL *head, WL elem) |
1524 | wlist_del (WL *head, WL elem) |
1181 | { |
1525 | { |
1182 | while (*head) |
1526 | while (*head) |
1183 | { |
1527 | { |
1184 | if (*head == elem) |
1528 | if (*head == elem) |
… | |
… | |
1189 | |
1533 | |
1190 | head = &(*head)->next; |
1534 | head = &(*head)->next; |
1191 | } |
1535 | } |
1192 | } |
1536 | } |
1193 | |
1537 | |
1194 | inline void |
1538 | void inline_speed |
1195 | ev_clear_pending (EV_P_ W w) |
1539 | clear_pending (EV_P_ W w) |
1196 | { |
1540 | { |
1197 | if (w->pending) |
1541 | if (w->pending) |
1198 | { |
1542 | { |
1199 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1543 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
1200 | w->pending = 0; |
1544 | w->pending = 0; |
1201 | } |
1545 | } |
1202 | } |
1546 | } |
1203 | |
1547 | |
1204 | inline void |
1548 | int |
|
|
1549 | ev_clear_pending (EV_P_ void *w) |
|
|
1550 | { |
|
|
1551 | W w_ = (W)w; |
|
|
1552 | int pending = w_->pending; |
|
|
1553 | |
|
|
1554 | if (expect_true (pending)) |
|
|
1555 | { |
|
|
1556 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1557 | w_->pending = 0; |
|
|
1558 | p->w = 0; |
|
|
1559 | return p->events; |
|
|
1560 | } |
|
|
1561 | else |
|
|
1562 | return 0; |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void inline_size |
|
|
1566 | pri_adjust (EV_P_ W w) |
|
|
1567 | { |
|
|
1568 | int pri = w->priority; |
|
|
1569 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1570 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1571 | w->priority = pri; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | void inline_speed |
1205 | ev_start (EV_P_ W w, int active) |
1575 | ev_start (EV_P_ W w, int active) |
1206 | { |
1576 | { |
1207 | if (w->priority < EV_MINPRI) w->priority = EV_MINPRI; |
1577 | pri_adjust (EV_A_ w); |
1208 | if (w->priority > EV_MAXPRI) w->priority = EV_MAXPRI; |
|
|
1209 | |
|
|
1210 | w->active = active; |
1578 | w->active = active; |
1211 | ev_ref (EV_A); |
1579 | ev_ref (EV_A); |
1212 | } |
1580 | } |
1213 | |
1581 | |
1214 | inline void |
1582 | void inline_size |
1215 | ev_stop (EV_P_ W w) |
1583 | ev_stop (EV_P_ W w) |
1216 | { |
1584 | { |
1217 | ev_unref (EV_A); |
1585 | ev_unref (EV_A); |
1218 | w->active = 0; |
1586 | w->active = 0; |
1219 | } |
1587 | } |
1220 | |
1588 | |
1221 | /*****************************************************************************/ |
1589 | /*****************************************************************************/ |
1222 | |
1590 | |
1223 | void |
1591 | void noinline |
1224 | ev_io_start (EV_P_ struct ev_io *w) |
1592 | ev_io_start (EV_P_ ev_io *w) |
1225 | { |
1593 | { |
1226 | int fd = w->fd; |
1594 | int fd = w->fd; |
1227 | |
1595 | |
1228 | if (ev_is_active (w)) |
1596 | if (expect_false (ev_is_active (w))) |
1229 | return; |
1597 | return; |
1230 | |
1598 | |
1231 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1599 | assert (("ev_io_start called with negative fd", fd >= 0)); |
1232 | |
1600 | |
1233 | ev_start (EV_A_ (W)w, 1); |
1601 | ev_start (EV_A_ (W)w, 1); |
… | |
… | |
1235 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1603 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
1236 | |
1604 | |
1237 | fd_change (EV_A_ fd); |
1605 | fd_change (EV_A_ fd); |
1238 | } |
1606 | } |
1239 | |
1607 | |
1240 | void |
1608 | void noinline |
1241 | ev_io_stop (EV_P_ struct ev_io *w) |
1609 | ev_io_stop (EV_P_ ev_io *w) |
1242 | { |
1610 | { |
1243 | ev_clear_pending (EV_A_ (W)w); |
1611 | clear_pending (EV_A_ (W)w); |
1244 | if (!ev_is_active (w)) |
1612 | if (expect_false (!ev_is_active (w))) |
1245 | return; |
1613 | return; |
|
|
1614 | |
|
|
1615 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
1246 | |
1616 | |
1247 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1617 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
1248 | ev_stop (EV_A_ (W)w); |
1618 | ev_stop (EV_A_ (W)w); |
1249 | |
1619 | |
1250 | fd_change (EV_A_ w->fd); |
1620 | fd_change (EV_A_ w->fd); |
1251 | } |
1621 | } |
1252 | |
1622 | |
1253 | void |
1623 | void noinline |
1254 | ev_timer_start (EV_P_ struct ev_timer *w) |
1624 | ev_timer_start (EV_P_ ev_timer *w) |
1255 | { |
1625 | { |
1256 | if (ev_is_active (w)) |
1626 | if (expect_false (ev_is_active (w))) |
1257 | return; |
1627 | return; |
1258 | |
1628 | |
1259 | ((WT)w)->at += mn_now; |
1629 | ((WT)w)->at += mn_now; |
1260 | |
1630 | |
1261 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1631 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
1262 | |
1632 | |
1263 | ev_start (EV_A_ (W)w, ++timercnt); |
1633 | ev_start (EV_A_ (W)w, ++timercnt); |
1264 | array_needsize (struct ev_timer *, timers, timermax, timercnt, (void)); |
1634 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
1265 | timers [timercnt - 1] = w; |
1635 | timers [timercnt - 1] = w; |
1266 | upheap ((WT *)timers, timercnt - 1); |
1636 | upheap ((WT *)timers, timercnt - 1); |
1267 | |
1637 | |
|
|
1638 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1639 | } |
|
|
1640 | |
|
|
1641 | void noinline |
|
|
1642 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
1643 | { |
|
|
1644 | clear_pending (EV_A_ (W)w); |
|
|
1645 | if (expect_false (!ev_is_active (w))) |
|
|
1646 | return; |
|
|
1647 | |
1268 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1648 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1269 | } |
|
|
1270 | |
1649 | |
1271 | void |
1650 | { |
1272 | ev_timer_stop (EV_P_ struct ev_timer *w) |
1651 | int active = ((W)w)->active; |
1273 | { |
|
|
1274 | ev_clear_pending (EV_A_ (W)w); |
|
|
1275 | if (!ev_is_active (w)) |
|
|
1276 | return; |
|
|
1277 | |
1652 | |
1278 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
1653 | if (expect_true (--active < --timercnt)) |
1279 | |
|
|
1280 | if (((W)w)->active < timercnt--) |
|
|
1281 | { |
1654 | { |
1282 | timers [((W)w)->active - 1] = timers [timercnt]; |
1655 | timers [active] = timers [timercnt]; |
1283 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1656 | adjustheap ((WT *)timers, timercnt, active); |
1284 | } |
1657 | } |
|
|
1658 | } |
1285 | |
1659 | |
1286 | ((WT)w)->at = w->repeat; |
1660 | ((WT)w)->at -= mn_now; |
1287 | |
1661 | |
1288 | ev_stop (EV_A_ (W)w); |
1662 | ev_stop (EV_A_ (W)w); |
1289 | } |
1663 | } |
1290 | |
1664 | |
1291 | void |
1665 | void noinline |
1292 | ev_timer_again (EV_P_ struct ev_timer *w) |
1666 | ev_timer_again (EV_P_ ev_timer *w) |
1293 | { |
1667 | { |
1294 | if (ev_is_active (w)) |
1668 | if (ev_is_active (w)) |
1295 | { |
1669 | { |
1296 | if (w->repeat) |
1670 | if (w->repeat) |
1297 | { |
1671 | { |
1298 | ((WT)w)->at = mn_now + w->repeat; |
1672 | ((WT)w)->at = mn_now + w->repeat; |
1299 | downheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1673 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
1300 | } |
1674 | } |
1301 | else |
1675 | else |
1302 | ev_timer_stop (EV_A_ w); |
1676 | ev_timer_stop (EV_A_ w); |
1303 | } |
1677 | } |
1304 | else if (w->repeat) |
1678 | else if (w->repeat) |
|
|
1679 | { |
|
|
1680 | w->at = w->repeat; |
1305 | ev_timer_start (EV_A_ w); |
1681 | ev_timer_start (EV_A_ w); |
|
|
1682 | } |
1306 | } |
1683 | } |
1307 | |
1684 | |
1308 | void |
1685 | #if EV_PERIODIC_ENABLE |
|
|
1686 | void noinline |
1309 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1687 | ev_periodic_start (EV_P_ ev_periodic *w) |
1310 | { |
1688 | { |
1311 | if (ev_is_active (w)) |
1689 | if (expect_false (ev_is_active (w))) |
1312 | return; |
1690 | return; |
1313 | |
1691 | |
|
|
1692 | if (w->reschedule_cb) |
|
|
1693 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1694 | else if (w->interval) |
|
|
1695 | { |
1314 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1696 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1315 | |
|
|
1316 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1697 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1317 | if (w->interval) |
|
|
1318 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1698 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1699 | } |
|
|
1700 | else |
|
|
1701 | ((WT)w)->at = w->offset; |
1319 | |
1702 | |
1320 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1703 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1321 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1704 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
1322 | periodics [periodiccnt - 1] = w; |
1705 | periodics [periodiccnt - 1] = w; |
1323 | upheap ((WT *)periodics, periodiccnt - 1); |
1706 | upheap ((WT *)periodics, periodiccnt - 1); |
1324 | |
1707 | |
|
|
1708 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
|
|
1709 | } |
|
|
1710 | |
|
|
1711 | void noinline |
|
|
1712 | ev_periodic_stop (EV_P_ ev_periodic *w) |
|
|
1713 | { |
|
|
1714 | clear_pending (EV_A_ (W)w); |
|
|
1715 | if (expect_false (!ev_is_active (w))) |
|
|
1716 | return; |
|
|
1717 | |
1325 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1718 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1326 | } |
|
|
1327 | |
1719 | |
1328 | void |
1720 | { |
1329 | ev_periodic_stop (EV_P_ struct ev_periodic *w) |
1721 | int active = ((W)w)->active; |
1330 | { |
|
|
1331 | ev_clear_pending (EV_A_ (W)w); |
|
|
1332 | if (!ev_is_active (w)) |
|
|
1333 | return; |
|
|
1334 | |
1722 | |
1335 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
1723 | if (expect_true (--active < --periodiccnt)) |
1336 | |
|
|
1337 | if (((W)w)->active < periodiccnt--) |
|
|
1338 | { |
1724 | { |
1339 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1725 | periodics [active] = periodics [periodiccnt]; |
1340 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1726 | adjustheap ((WT *)periodics, periodiccnt, active); |
1341 | } |
1727 | } |
|
|
1728 | } |
1342 | |
1729 | |
1343 | ev_stop (EV_A_ (W)w); |
1730 | ev_stop (EV_A_ (W)w); |
1344 | } |
1731 | } |
1345 | |
1732 | |
1346 | void |
1733 | void noinline |
1347 | ev_idle_start (EV_P_ struct ev_idle *w) |
1734 | ev_periodic_again (EV_P_ ev_periodic *w) |
1348 | { |
1735 | { |
1349 | if (ev_is_active (w)) |
1736 | /* TODO: use adjustheap and recalculation */ |
1350 | return; |
|
|
1351 | |
|
|
1352 | ev_start (EV_A_ (W)w, ++idlecnt); |
|
|
1353 | array_needsize (struct ev_idle *, idles, idlemax, idlecnt, (void)); |
|
|
1354 | idles [idlecnt - 1] = w; |
|
|
1355 | } |
|
|
1356 | |
|
|
1357 | void |
|
|
1358 | ev_idle_stop (EV_P_ struct ev_idle *w) |
|
|
1359 | { |
|
|
1360 | ev_clear_pending (EV_A_ (W)w); |
|
|
1361 | if (ev_is_active (w)) |
|
|
1362 | return; |
|
|
1363 | |
|
|
1364 | idles [((W)w)->active - 1] = idles [--idlecnt]; |
|
|
1365 | ev_stop (EV_A_ (W)w); |
1737 | ev_periodic_stop (EV_A_ w); |
|
|
1738 | ev_periodic_start (EV_A_ w); |
1366 | } |
1739 | } |
1367 | |
1740 | #endif |
1368 | void |
|
|
1369 | ev_prepare_start (EV_P_ struct ev_prepare *w) |
|
|
1370 | { |
|
|
1371 | if (ev_is_active (w)) |
|
|
1372 | return; |
|
|
1373 | |
|
|
1374 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
1375 | array_needsize (struct ev_prepare *, prepares, preparemax, preparecnt, (void)); |
|
|
1376 | prepares [preparecnt - 1] = w; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | void |
|
|
1380 | ev_prepare_stop (EV_P_ struct ev_prepare *w) |
|
|
1381 | { |
|
|
1382 | ev_clear_pending (EV_A_ (W)w); |
|
|
1383 | if (ev_is_active (w)) |
|
|
1384 | return; |
|
|
1385 | |
|
|
1386 | prepares [((W)w)->active - 1] = prepares [--preparecnt]; |
|
|
1387 | ev_stop (EV_A_ (W)w); |
|
|
1388 | } |
|
|
1389 | |
|
|
1390 | void |
|
|
1391 | ev_check_start (EV_P_ struct ev_check *w) |
|
|
1392 | { |
|
|
1393 | if (ev_is_active (w)) |
|
|
1394 | return; |
|
|
1395 | |
|
|
1396 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
1397 | array_needsize (struct ev_check *, checks, checkmax, checkcnt, (void)); |
|
|
1398 | checks [checkcnt - 1] = w; |
|
|
1399 | } |
|
|
1400 | |
|
|
1401 | void |
|
|
1402 | ev_check_stop (EV_P_ struct ev_check *w) |
|
|
1403 | { |
|
|
1404 | ev_clear_pending (EV_A_ (W)w); |
|
|
1405 | if (ev_is_active (w)) |
|
|
1406 | return; |
|
|
1407 | |
|
|
1408 | checks [((W)w)->active - 1] = checks [--checkcnt]; |
|
|
1409 | ev_stop (EV_A_ (W)w); |
|
|
1410 | } |
|
|
1411 | |
1741 | |
1412 | #ifndef SA_RESTART |
1742 | #ifndef SA_RESTART |
1413 | # define SA_RESTART 0 |
1743 | # define SA_RESTART 0 |
1414 | #endif |
1744 | #endif |
1415 | |
1745 | |
1416 | void |
1746 | void noinline |
1417 | ev_signal_start (EV_P_ struct ev_signal *w) |
1747 | ev_signal_start (EV_P_ ev_signal *w) |
1418 | { |
1748 | { |
1419 | #if EV_MULTIPLICITY |
1749 | #if EV_MULTIPLICITY |
1420 | assert (("signal watchers are only supported in the default loop", loop == default_loop)); |
1750 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1421 | #endif |
1751 | #endif |
1422 | if (ev_is_active (w)) |
1752 | if (expect_false (ev_is_active (w))) |
1423 | return; |
1753 | return; |
1424 | |
1754 | |
1425 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1755 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
1426 | |
1756 | |
|
|
1757 | { |
|
|
1758 | #ifndef _WIN32 |
|
|
1759 | sigset_t full, prev; |
|
|
1760 | sigfillset (&full); |
|
|
1761 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1762 | #endif |
|
|
1763 | |
|
|
1764 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1765 | |
|
|
1766 | #ifndef _WIN32 |
|
|
1767 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1768 | #endif |
|
|
1769 | } |
|
|
1770 | |
1427 | ev_start (EV_A_ (W)w, 1); |
1771 | ev_start (EV_A_ (W)w, 1); |
1428 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
|
|
1429 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1772 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
1430 | |
1773 | |
1431 | if (!((WL)w)->next) |
1774 | if (!((WL)w)->next) |
1432 | { |
1775 | { |
1433 | #if WIN32 |
1776 | #if _WIN32 |
1434 | signal (w->signum, sighandler); |
1777 | signal (w->signum, sighandler); |
1435 | #else |
1778 | #else |
1436 | struct sigaction sa; |
1779 | struct sigaction sa; |
1437 | sa.sa_handler = sighandler; |
1780 | sa.sa_handler = sighandler; |
1438 | sigfillset (&sa.sa_mask); |
1781 | sigfillset (&sa.sa_mask); |
… | |
… | |
1440 | sigaction (w->signum, &sa, 0); |
1783 | sigaction (w->signum, &sa, 0); |
1441 | #endif |
1784 | #endif |
1442 | } |
1785 | } |
1443 | } |
1786 | } |
1444 | |
1787 | |
1445 | void |
1788 | void noinline |
1446 | ev_signal_stop (EV_P_ struct ev_signal *w) |
1789 | ev_signal_stop (EV_P_ ev_signal *w) |
1447 | { |
1790 | { |
1448 | ev_clear_pending (EV_A_ (W)w); |
1791 | clear_pending (EV_A_ (W)w); |
1449 | if (!ev_is_active (w)) |
1792 | if (expect_false (!ev_is_active (w))) |
1450 | return; |
1793 | return; |
1451 | |
1794 | |
1452 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1795 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
1453 | ev_stop (EV_A_ (W)w); |
1796 | ev_stop (EV_A_ (W)w); |
1454 | |
1797 | |
1455 | if (!signals [w->signum - 1].head) |
1798 | if (!signals [w->signum - 1].head) |
1456 | signal (w->signum, SIG_DFL); |
1799 | signal (w->signum, SIG_DFL); |
1457 | } |
1800 | } |
1458 | |
1801 | |
1459 | void |
1802 | void |
1460 | ev_child_start (EV_P_ struct ev_child *w) |
1803 | ev_child_start (EV_P_ ev_child *w) |
1461 | { |
1804 | { |
1462 | #if EV_MULTIPLICITY |
1805 | #if EV_MULTIPLICITY |
1463 | assert (("child watchers are only supported in the default loop", loop == default_loop)); |
1806 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
1464 | #endif |
1807 | #endif |
1465 | if (ev_is_active (w)) |
1808 | if (expect_false (ev_is_active (w))) |
1466 | return; |
1809 | return; |
1467 | |
1810 | |
1468 | ev_start (EV_A_ (W)w, 1); |
1811 | ev_start (EV_A_ (W)w, 1); |
1469 | wlist_add ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1812 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1470 | } |
1813 | } |
1471 | |
1814 | |
1472 | void |
1815 | void |
1473 | ev_child_stop (EV_P_ struct ev_child *w) |
1816 | ev_child_stop (EV_P_ ev_child *w) |
1474 | { |
1817 | { |
1475 | ev_clear_pending (EV_A_ (W)w); |
1818 | clear_pending (EV_A_ (W)w); |
1476 | if (ev_is_active (w)) |
1819 | if (expect_false (!ev_is_active (w))) |
1477 | return; |
1820 | return; |
1478 | |
1821 | |
1479 | wlist_del ((WL *)&childs [w->pid & (PID_HASHSIZE - 1)], (WL)w); |
1822 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
1480 | ev_stop (EV_A_ (W)w); |
1823 | ev_stop (EV_A_ (W)w); |
1481 | } |
1824 | } |
1482 | |
1825 | |
|
|
1826 | #if EV_STAT_ENABLE |
|
|
1827 | |
|
|
1828 | # ifdef _WIN32 |
|
|
1829 | # undef lstat |
|
|
1830 | # define lstat(a,b) _stati64 (a,b) |
|
|
1831 | # endif |
|
|
1832 | |
|
|
1833 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1834 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1835 | |
|
|
1836 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1837 | |
|
|
1838 | #if EV_USE_INOTIFY |
|
|
1839 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1840 | |
|
|
1841 | static void noinline |
|
|
1842 | infy_add (EV_P_ ev_stat *w) |
|
|
1843 | { |
|
|
1844 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
1845 | |
|
|
1846 | if (w->wd < 0) |
|
|
1847 | { |
|
|
1848 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1849 | |
|
|
1850 | /* monitor some parent directory for speedup hints */ |
|
|
1851 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1852 | { |
|
|
1853 | char path [4096]; |
|
|
1854 | strcpy (path, w->path); |
|
|
1855 | |
|
|
1856 | do |
|
|
1857 | { |
|
|
1858 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1859 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1860 | |
|
|
1861 | char *pend = strrchr (path, '/'); |
|
|
1862 | |
|
|
1863 | if (!pend) |
|
|
1864 | break; /* whoops, no '/', complain to your admin */ |
|
|
1865 | |
|
|
1866 | *pend = 0; |
|
|
1867 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1868 | } |
|
|
1869 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1870 | } |
|
|
1871 | } |
|
|
1872 | else |
|
|
1873 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1874 | |
|
|
1875 | if (w->wd >= 0) |
|
|
1876 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1877 | } |
|
|
1878 | |
|
|
1879 | static void noinline |
|
|
1880 | infy_del (EV_P_ ev_stat *w) |
|
|
1881 | { |
|
|
1882 | int slot; |
|
|
1883 | int wd = w->wd; |
|
|
1884 | |
|
|
1885 | if (wd < 0) |
|
|
1886 | return; |
|
|
1887 | |
|
|
1888 | w->wd = -2; |
|
|
1889 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1890 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1891 | |
|
|
1892 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1893 | inotify_rm_watch (fs_fd, wd); |
|
|
1894 | } |
|
|
1895 | |
|
|
1896 | static void noinline |
|
|
1897 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1898 | { |
|
|
1899 | if (slot < 0) |
|
|
1900 | /* overflow, need to check for all hahs slots */ |
|
|
1901 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1902 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1903 | else |
|
|
1904 | { |
|
|
1905 | WL w_; |
|
|
1906 | |
|
|
1907 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1908 | { |
|
|
1909 | ev_stat *w = (ev_stat *)w_; |
|
|
1910 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1911 | |
|
|
1912 | if (w->wd == wd || wd == -1) |
|
|
1913 | { |
|
|
1914 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1915 | { |
|
|
1916 | w->wd = -1; |
|
|
1917 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1921 | } |
|
|
1922 | } |
|
|
1923 | } |
|
|
1924 | } |
|
|
1925 | |
|
|
1926 | static void |
|
|
1927 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1928 | { |
|
|
1929 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1930 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1931 | int ofs; |
|
|
1932 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1933 | |
|
|
1934 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1935 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1936 | } |
|
|
1937 | |
|
|
1938 | void inline_size |
|
|
1939 | infy_init (EV_P) |
|
|
1940 | { |
|
|
1941 | if (fs_fd != -2) |
|
|
1942 | return; |
|
|
1943 | |
|
|
1944 | fs_fd = inotify_init (); |
|
|
1945 | |
|
|
1946 | if (fs_fd >= 0) |
|
|
1947 | { |
|
|
1948 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1949 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1950 | ev_io_start (EV_A_ &fs_w); |
|
|
1951 | } |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | void inline_size |
|
|
1955 | infy_fork (EV_P) |
|
|
1956 | { |
|
|
1957 | int slot; |
|
|
1958 | |
|
|
1959 | if (fs_fd < 0) |
|
|
1960 | return; |
|
|
1961 | |
|
|
1962 | close (fs_fd); |
|
|
1963 | fs_fd = inotify_init (); |
|
|
1964 | |
|
|
1965 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1966 | { |
|
|
1967 | WL w_ = fs_hash [slot].head; |
|
|
1968 | fs_hash [slot].head = 0; |
|
|
1969 | |
|
|
1970 | while (w_) |
|
|
1971 | { |
|
|
1972 | ev_stat *w = (ev_stat *)w_; |
|
|
1973 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1974 | |
|
|
1975 | w->wd = -1; |
|
|
1976 | |
|
|
1977 | if (fs_fd >= 0) |
|
|
1978 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1979 | else |
|
|
1980 | ev_timer_start (EV_A_ &w->timer); |
|
|
1981 | } |
|
|
1982 | |
|
|
1983 | } |
|
|
1984 | } |
|
|
1985 | |
|
|
1986 | #endif |
|
|
1987 | |
|
|
1988 | void |
|
|
1989 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1990 | { |
|
|
1991 | if (lstat (w->path, &w->attr) < 0) |
|
|
1992 | w->attr.st_nlink = 0; |
|
|
1993 | else if (!w->attr.st_nlink) |
|
|
1994 | w->attr.st_nlink = 1; |
|
|
1995 | } |
|
|
1996 | |
|
|
1997 | static void noinline |
|
|
1998 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1999 | { |
|
|
2000 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2001 | |
|
|
2002 | /* we copy this here each the time so that */ |
|
|
2003 | /* prev has the old value when the callback gets invoked */ |
|
|
2004 | w->prev = w->attr; |
|
|
2005 | ev_stat_stat (EV_A_ w); |
|
|
2006 | |
|
|
2007 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2008 | if ( |
|
|
2009 | w->prev.st_dev != w->attr.st_dev |
|
|
2010 | || w->prev.st_ino != w->attr.st_ino |
|
|
2011 | || w->prev.st_mode != w->attr.st_mode |
|
|
2012 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2013 | || w->prev.st_uid != w->attr.st_uid |
|
|
2014 | || w->prev.st_gid != w->attr.st_gid |
|
|
2015 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2016 | || w->prev.st_size != w->attr.st_size |
|
|
2017 | || w->prev.st_atime != w->attr.st_atime |
|
|
2018 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2019 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2020 | ) { |
|
|
2021 | #if EV_USE_INOTIFY |
|
|
2022 | infy_del (EV_A_ w); |
|
|
2023 | infy_add (EV_A_ w); |
|
|
2024 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2025 | #endif |
|
|
2026 | |
|
|
2027 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2028 | } |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | void |
|
|
2032 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2033 | { |
|
|
2034 | if (expect_false (ev_is_active (w))) |
|
|
2035 | return; |
|
|
2036 | |
|
|
2037 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2038 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2039 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2040 | |
|
|
2041 | ev_stat_stat (EV_A_ w); |
|
|
2042 | |
|
|
2043 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2044 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2045 | |
|
|
2046 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2047 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2048 | |
|
|
2049 | #if EV_USE_INOTIFY |
|
|
2050 | infy_init (EV_A); |
|
|
2051 | |
|
|
2052 | if (fs_fd >= 0) |
|
|
2053 | infy_add (EV_A_ w); |
|
|
2054 | else |
|
|
2055 | #endif |
|
|
2056 | ev_timer_start (EV_A_ &w->timer); |
|
|
2057 | |
|
|
2058 | ev_start (EV_A_ (W)w, 1); |
|
|
2059 | } |
|
|
2060 | |
|
|
2061 | void |
|
|
2062 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2063 | { |
|
|
2064 | clear_pending (EV_A_ (W)w); |
|
|
2065 | if (expect_false (!ev_is_active (w))) |
|
|
2066 | return; |
|
|
2067 | |
|
|
2068 | #if EV_USE_INOTIFY |
|
|
2069 | infy_del (EV_A_ w); |
|
|
2070 | #endif |
|
|
2071 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2072 | |
|
|
2073 | ev_stop (EV_A_ (W)w); |
|
|
2074 | } |
|
|
2075 | #endif |
|
|
2076 | |
|
|
2077 | #if EV_IDLE_ENABLE |
|
|
2078 | void |
|
|
2079 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2080 | { |
|
|
2081 | if (expect_false (ev_is_active (w))) |
|
|
2082 | return; |
|
|
2083 | |
|
|
2084 | pri_adjust (EV_A_ (W)w); |
|
|
2085 | |
|
|
2086 | { |
|
|
2087 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2088 | |
|
|
2089 | ++idleall; |
|
|
2090 | ev_start (EV_A_ (W)w, active); |
|
|
2091 | |
|
|
2092 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2093 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2094 | } |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | void |
|
|
2098 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2099 | { |
|
|
2100 | clear_pending (EV_A_ (W)w); |
|
|
2101 | if (expect_false (!ev_is_active (w))) |
|
|
2102 | return; |
|
|
2103 | |
|
|
2104 | { |
|
|
2105 | int active = ((W)w)->active; |
|
|
2106 | |
|
|
2107 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2108 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2109 | |
|
|
2110 | ev_stop (EV_A_ (W)w); |
|
|
2111 | --idleall; |
|
|
2112 | } |
|
|
2113 | } |
|
|
2114 | #endif |
|
|
2115 | |
|
|
2116 | void |
|
|
2117 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2118 | { |
|
|
2119 | if (expect_false (ev_is_active (w))) |
|
|
2120 | return; |
|
|
2121 | |
|
|
2122 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2123 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2124 | prepares [preparecnt - 1] = w; |
|
|
2125 | } |
|
|
2126 | |
|
|
2127 | void |
|
|
2128 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2129 | { |
|
|
2130 | clear_pending (EV_A_ (W)w); |
|
|
2131 | if (expect_false (!ev_is_active (w))) |
|
|
2132 | return; |
|
|
2133 | |
|
|
2134 | { |
|
|
2135 | int active = ((W)w)->active; |
|
|
2136 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2137 | ((W)prepares [active - 1])->active = active; |
|
|
2138 | } |
|
|
2139 | |
|
|
2140 | ev_stop (EV_A_ (W)w); |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | void |
|
|
2144 | ev_check_start (EV_P_ ev_check *w) |
|
|
2145 | { |
|
|
2146 | if (expect_false (ev_is_active (w))) |
|
|
2147 | return; |
|
|
2148 | |
|
|
2149 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2150 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2151 | checks [checkcnt - 1] = w; |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | void |
|
|
2155 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2156 | { |
|
|
2157 | clear_pending (EV_A_ (W)w); |
|
|
2158 | if (expect_false (!ev_is_active (w))) |
|
|
2159 | return; |
|
|
2160 | |
|
|
2161 | { |
|
|
2162 | int active = ((W)w)->active; |
|
|
2163 | checks [active - 1] = checks [--checkcnt]; |
|
|
2164 | ((W)checks [active - 1])->active = active; |
|
|
2165 | } |
|
|
2166 | |
|
|
2167 | ev_stop (EV_A_ (W)w); |
|
|
2168 | } |
|
|
2169 | |
|
|
2170 | #if EV_EMBED_ENABLE |
|
|
2171 | void noinline |
|
|
2172 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2173 | { |
|
|
2174 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2175 | } |
|
|
2176 | |
|
|
2177 | static void |
|
|
2178 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2179 | { |
|
|
2180 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2181 | |
|
|
2182 | if (ev_cb (w)) |
|
|
2183 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2184 | else |
|
|
2185 | ev_embed_sweep (loop, w); |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | void |
|
|
2189 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2190 | { |
|
|
2191 | if (expect_false (ev_is_active (w))) |
|
|
2192 | return; |
|
|
2193 | |
|
|
2194 | { |
|
|
2195 | struct ev_loop *loop = w->loop; |
|
|
2196 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2197 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2201 | ev_io_start (EV_A_ &w->io); |
|
|
2202 | |
|
|
2203 | ev_start (EV_A_ (W)w, 1); |
|
|
2204 | } |
|
|
2205 | |
|
|
2206 | void |
|
|
2207 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2208 | { |
|
|
2209 | clear_pending (EV_A_ (W)w); |
|
|
2210 | if (expect_false (!ev_is_active (w))) |
|
|
2211 | return; |
|
|
2212 | |
|
|
2213 | ev_io_stop (EV_A_ &w->io); |
|
|
2214 | |
|
|
2215 | ev_stop (EV_A_ (W)w); |
|
|
2216 | } |
|
|
2217 | #endif |
|
|
2218 | |
|
|
2219 | #if EV_FORK_ENABLE |
|
|
2220 | void |
|
|
2221 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2222 | { |
|
|
2223 | if (expect_false (ev_is_active (w))) |
|
|
2224 | return; |
|
|
2225 | |
|
|
2226 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2227 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2228 | forks [forkcnt - 1] = w; |
|
|
2229 | } |
|
|
2230 | |
|
|
2231 | void |
|
|
2232 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2233 | { |
|
|
2234 | clear_pending (EV_A_ (W)w); |
|
|
2235 | if (expect_false (!ev_is_active (w))) |
|
|
2236 | return; |
|
|
2237 | |
|
|
2238 | { |
|
|
2239 | int active = ((W)w)->active; |
|
|
2240 | forks [active - 1] = forks [--forkcnt]; |
|
|
2241 | ((W)forks [active - 1])->active = active; |
|
|
2242 | } |
|
|
2243 | |
|
|
2244 | ev_stop (EV_A_ (W)w); |
|
|
2245 | } |
|
|
2246 | #endif |
|
|
2247 | |
1483 | /*****************************************************************************/ |
2248 | /*****************************************************************************/ |
1484 | |
2249 | |
1485 | struct ev_once |
2250 | struct ev_once |
1486 | { |
2251 | { |
1487 | struct ev_io io; |
2252 | ev_io io; |
1488 | struct ev_timer to; |
2253 | ev_timer to; |
1489 | void (*cb)(int revents, void *arg); |
2254 | void (*cb)(int revents, void *arg); |
1490 | void *arg; |
2255 | void *arg; |
1491 | }; |
2256 | }; |
1492 | |
2257 | |
1493 | static void |
2258 | static void |
… | |
… | |
1502 | |
2267 | |
1503 | cb (revents, arg); |
2268 | cb (revents, arg); |
1504 | } |
2269 | } |
1505 | |
2270 | |
1506 | static void |
2271 | static void |
1507 | once_cb_io (EV_P_ struct ev_io *w, int revents) |
2272 | once_cb_io (EV_P_ ev_io *w, int revents) |
1508 | { |
2273 | { |
1509 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
2274 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
1510 | } |
2275 | } |
1511 | |
2276 | |
1512 | static void |
2277 | static void |
1513 | once_cb_to (EV_P_ struct ev_timer *w, int revents) |
2278 | once_cb_to (EV_P_ ev_timer *w, int revents) |
1514 | { |
2279 | { |
1515 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
2280 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
1516 | } |
2281 | } |
1517 | |
2282 | |
1518 | void |
2283 | void |
1519 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
2284 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
1520 | { |
2285 | { |
1521 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
2286 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
1522 | |
2287 | |
1523 | if (!once) |
2288 | if (expect_false (!once)) |
|
|
2289 | { |
1524 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
2290 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
1525 | else |
2291 | return; |
1526 | { |
2292 | } |
|
|
2293 | |
1527 | once->cb = cb; |
2294 | once->cb = cb; |
1528 | once->arg = arg; |
2295 | once->arg = arg; |
1529 | |
2296 | |
1530 | ev_watcher_init (&once->io, once_cb_io); |
2297 | ev_init (&once->io, once_cb_io); |
1531 | if (fd >= 0) |
2298 | if (fd >= 0) |
1532 | { |
2299 | { |
1533 | ev_io_set (&once->io, fd, events); |
2300 | ev_io_set (&once->io, fd, events); |
1534 | ev_io_start (EV_A_ &once->io); |
2301 | ev_io_start (EV_A_ &once->io); |
1535 | } |
2302 | } |
1536 | |
2303 | |
1537 | ev_watcher_init (&once->to, once_cb_to); |
2304 | ev_init (&once->to, once_cb_to); |
1538 | if (timeout >= 0.) |
2305 | if (timeout >= 0.) |
1539 | { |
2306 | { |
1540 | ev_timer_set (&once->to, timeout, 0.); |
2307 | ev_timer_set (&once->to, timeout, 0.); |
1541 | ev_timer_start (EV_A_ &once->to); |
2308 | ev_timer_start (EV_A_ &once->to); |
1542 | } |
|
|
1543 | } |
2309 | } |
1544 | } |
2310 | } |
1545 | |
2311 | |
|
|
2312 | #ifdef __cplusplus |
|
|
2313 | } |
|
|
2314 | #endif |
|
|
2315 | |