Annotation of libaitsched/src/hooks.c, revision 1.24.4.2
1.1 misho 1: /*************************************************************************
2: * (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
1.24.4.2! misho 6: * $Id: hooks.c,v 1.24.4.1 2014/01/27 16:52:56 misho Exp $
1.1 misho 7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
1.17 misho 15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
1.1 misho 16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47: #include "hooks.h"
48:
49:
50: /*
51: * sched_hook_init() - Default INIT hook
1.5 misho 52: *
1.1 misho 53: * @root = root task
1.6 misho 54: * @arg = unused
1.1 misho 55: * return: <0 errors and 0 ok
56: */
57: void *
1.6 misho 58: sched_hook_init(void *root, void *arg __unused)
1.1 misho 59: {
60: sched_root_task_t *r = root;
61:
1.6 misho 62: if (!r)
1.1 misho 63: return (void*) -1;
64:
1.24.4.1 misho 65: #ifndef KQ_DISABLE
1.1 misho 66: r->root_kq = kqueue();
67: if (r->root_kq == -1) {
68: LOGERR;
69: return (void*) -1;
70: }
1.24.4.1 misho 71: #else
72: r->root_kq ^= r->root_kq;
73: FD_ZERO(&r->root_fds[0]);
74: FD_ZERO(&r->root_fds[1]);
75: #endif
1.1 misho 76:
77: return NULL;
78: }
79:
80: /*
81: * sched_hook_fini() - Default FINI hook
1.5 misho 82: *
1.1 misho 83: * @root = root task
84: * @arg = unused
85: * return: <0 errors and 0 ok
86: */
87: void *
88: sched_hook_fini(void *root, void *arg __unused)
89: {
90: sched_root_task_t *r = root;
91:
92: if (!r)
93: return (void*) -1;
94:
1.24.4.1 misho 95: #ifndef KQ_DISABLE
1.1 misho 96: if (r->root_kq > 2) {
97: close(r->root_kq);
98: r->root_kq = 0;
99: }
1.24.4.1 misho 100: #else
101: FD_ZERO(&r->root_fds[1]);
102: FD_ZERO(&r->root_fds[0]);
103: r->root_kq ^= r->root_kq;
104: #endif
1.1 misho 105:
106: return NULL;
107: }
108:
109: /*
110: * sched_hook_cancel() - Default CANCEL hook
1.5 misho 111: *
1.1 misho 112: * @task = current task
113: * @arg = unused
114: * return: <0 errors and 0 ok
115: */
116: void *
117: sched_hook_cancel(void *task, void *arg __unused)
118: {
119: sched_task_t *t = task;
1.24.4.1 misho 120: #ifndef KQ_DISABLE
1.1 misho 121: struct kevent chg[1];
1.2 misho 122: struct timespec timeout = { 0, 0 };
1.24.4.1 misho 123: #else
124: sched_root_task_t *r = NULL;
125: register int i;
126: #endif
1.11 misho 127: #ifdef AIO_SUPPORT
128: struct aiocb *acb;
129: #ifdef EVFILT_LIO
1.15 misho 130: register int i = 0;
1.11 misho 131: struct aiocb **acbs;
132: #endif /* EVFILT_LIO */
133: #endif /* AIO_SUPPORT */
1.1 misho 134:
1.6 misho 135: if (!t || !TASK_ROOT(t))
1.1 misho 136: return (void*) -1;
1.24.4.1 misho 137: #ifdef KQ_DISABLE
138: r = TASK_ROOT(t);
139: #endif
1.1 misho 140:
1.4 misho 141: switch (TASK_TYPE(t)) {
1.1 misho 142: case taskREAD:
1.24.4.1 misho 143: #ifndef KQ_DISABLE
1.2 misho 144: #ifdef __NetBSD__
145: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, EV_DELETE, 0, 0, (intptr_t) TASK_FD(t));
146: #else
147: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, EV_DELETE, 0, 0, (void*) TASK_FD(t));
148: #endif
1.24.4.1 misho 149: #else
150: FD_CLR(TASK_FD(t), &r->root_fds[0]);
151:
152: /* optimize select */
153: for (i = r->root_kq - 1; i > 2; i--)
154: if (FD_ISSET(i, &r->root_fds[0]) || FD_ISSET(i, &r->root_fds[1]))
155: break;
156: if (i > 2)
157: r->root_kq = i + 1;
158: #endif
1.1 misho 159: break;
160: case taskWRITE:
1.24.4.1 misho 161: #ifndef KQ_DISABLE
1.2 misho 162: #ifdef __NetBSD__
163: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, EV_DELETE, 0, 0, (intptr_t) TASK_FD(t));
164: #else
165: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, EV_DELETE, 0, 0, (void*) TASK_FD(t));
166: #endif
1.24.4.1 misho 167: #else
168: FD_CLR(TASK_FD(t), &r->root_fds[1]);
169:
170: /* optimize select */
171: for (i = r->root_kq - 1; i > 2; i--)
172: if (FD_ISSET(i, &r->root_fds[0]) || FD_ISSET(i, &r->root_fds[1]))
173: break;
174: if (i > 2)
175: r->root_kq = i + 1;
176: #endif
1.1 misho 177: break;
1.7 misho 178: case taskALARM:
1.24.4.1 misho 179: #ifndef KQ_DISABLE
1.7 misho 180: #ifdef __NetBSD__
181: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, EV_DELETE,
182: 0, 0, (intptr_t) TASK_DATA(t));
183: #else
184: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, EV_DELETE,
185: 0, 0, (void*) TASK_DATA(t));
186: #endif
1.24.4.1 misho 187: #endif
1.8 misho 188: break;
189: case taskNODE:
1.24.4.1 misho 190: #ifndef KQ_DISABLE
1.8 misho 191: #ifdef __NetBSD__
192: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, EV_DELETE, 0, 0, (intptr_t) TASK_FD(t));
193: #else
194: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, EV_DELETE, 0, 0, (void*) TASK_FD(t));
195: #endif
1.24.4.1 misho 196: #endif
1.8 misho 197: break;
198: case taskPROC:
1.24.4.1 misho 199: #ifndef KQ_DISABLE
1.8 misho 200: #ifdef __NetBSD__
201: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, EV_DELETE, 0, 0, (intptr_t) TASK_VAL(t));
202: #else
203: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, EV_DELETE, 0, 0, (void*) TASK_VAL(t));
204: #endif
1.24.4.1 misho 205: #endif
1.8 misho 206: break;
207: case taskSIGNAL:
1.24.4.1 misho 208: #ifndef KQ_DISABLE
1.8 misho 209: #ifdef __NetBSD__
210: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, EV_DELETE, 0, 0, (intptr_t) TASK_VAL(t));
211: #else
212: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, EV_DELETE, 0, 0, (void*) TASK_VAL(t));
213: #endif
1.18 misho 214: /* restore signal */
215: signal(TASK_VAL(t), SIG_DFL);
1.24.4.1 misho 216: #endif
1.8 misho 217: break;
1.11 misho 218: #ifdef AIO_SUPPORT
219: case taskAIO:
1.24.4.1 misho 220: #ifndef KQ_DISABLE
1.11 misho 221: #ifdef __NetBSD__
222: EV_SET(&chg[0], TASK_VAL(t), EVFILT_AIO, EV_DELETE, 0, 0, (intptr_t) TASK_VAL(t));
223: #else
224: EV_SET(&chg[0], TASK_VAL(t), EVFILT_AIO, EV_DELETE, 0, 0, (void*) TASK_VAL(t));
225: #endif
226: acb = (struct aiocb*) TASK_VAL(t);
227: if (acb) {
228: if (aio_cancel(acb->aio_fildes, acb) == AIO_CANCELED)
229: aio_return(acb);
230: free(acb);
231: TASK_VAL(t) = 0;
232: }
1.24.4.1 misho 233: #endif
1.11 misho 234: break;
235: #ifdef EVFILT_LIO
236: case taskLIO:
1.24.4.1 misho 237: #ifndef KQ_DISABLE
1.11 misho 238: #ifdef __NetBSD__
239: EV_SET(&chg[0], TASK_VAL(t), EVFILT_LIO, EV_DELETE, 0, 0, (intptr_t) TASK_VAL(t));
240: #else
241: EV_SET(&chg[0], TASK_VAL(t), EVFILT_LIO, EV_DELETE, 0, 0, (void*) TASK_VAL(t));
242: #endif
243: acbs = (struct aiocb**) TASK_VAL(t);
244: if (acbs) {
245: for (i = 0; i < TASK_DATLEN(t); i++) {
246: if (aio_cancel(acbs[i]->aio_fildes, acbs[i]) == AIO_CANCELED)
247: aio_return(acbs[i]);
248: free(acbs[i]);
249: }
250: free(acbs);
251: TASK_VAL(t) = 0;
252: }
1.24.4.1 misho 253: #endif
1.11 misho 254: break;
255: #endif /* EVFILT_LIO */
256: #endif /* AIO_SUPPORT */
1.8 misho 257: #ifdef EVFILT_USER
258: case taskUSER:
1.24.4.1 misho 259: #ifndef KQ_DISABLE
1.8 misho 260: #ifdef __NetBSD__
261: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, EV_DELETE, 0, 0, (intptr_t) TASK_VAL(t));
262: #else
263: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, EV_DELETE, 0, 0, (void*) TASK_VAL(t));
264: #endif
1.24.4.1 misho 265: #endif
1.10 misho 266: break;
1.19 misho 267: #endif /* EVFILT_USER */
1.14 misho 268: case taskTHREAD:
269: #ifdef HAVE_LIBPTHREAD
270: pthread_cancel((pthread_t) TASK_VAL(t));
271: #endif
1.19 misho 272: return NULL;
273: #if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME)
274: case taskRTC:
275: timer_delete((timer_t) TASK_FLAG(t));
276: schedCancel((sched_task_t*) TASK_RET(t));
277: return NULL;
278: #endif /* HAVE_TIMER_CREATE */
1.1 misho 279: default:
1.8 misho 280: return NULL;
1.1 misho 281: }
282:
1.24.4.1 misho 283: #ifndef KQ_DISABLE
1.8 misho 284: kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout);
1.24.4.1 misho 285: #endif
1.1 misho 286: return NULL;
287: }
288:
1.14 misho 289: #ifdef HAVE_LIBPTHREAD
290: /*
291: * sched_hook_thread() - Default THREAD hook
292: *
293: * @task = current task
294: * @arg = pthread attributes
295: * return: <0 errors and 0 ok
296: */
297: void *
298: sched_hook_thread(void *task, void *arg)
299: {
300: sched_task_t *t = task;
301: pthread_t tid;
1.15 misho 302: sigset_t s, o;
1.14 misho 303:
304: if (!t || !TASK_ROOT(t))
305: return (void*) -1;
306:
1.15 misho 307: sigfillset(&s);
308: pthread_sigmask(SIG_BLOCK, &s, &o);
1.16 misho 309: if ((errno = pthread_create(&tid, (pthread_attr_t*) arg,
310: (void *(*)(void*)) _sched_threadWrapper, t))) {
1.14 misho 311: LOGERR;
1.15 misho 312: pthread_sigmask(SIG_SETMASK, &o, NULL);
1.14 misho 313: return (void*) -1;
1.15 misho 314: } else
315: TASK_VAL(t) = (u_long) tid;
1.14 misho 316:
317: if (!TASK_ISLOCKED(t))
318: TASK_LOCK(t);
319:
1.15 misho 320: pthread_sigmask(SIG_SETMASK, &o, NULL);
1.14 misho 321: return NULL;
322: }
323: #endif
324:
1.1 misho 325: /*
326: * sched_hook_read() - Default READ hook
1.5 misho 327: *
1.1 misho 328: * @task = current task
329: * @arg = unused
330: * return: <0 errors and 0 ok
331: */
332: void *
333: sched_hook_read(void *task, void *arg __unused)
334: {
335: sched_task_t *t = task;
1.24.4.1 misho 336: #ifndef KQ_DISABLE
1.1 misho 337: struct kevent chg[1];
1.2 misho 338: struct timespec timeout = { 0, 0 };
1.24.4.1 misho 339: #else
340: sched_root_task_t *r = NULL;
341: #endif
1.1 misho 342:
1.6 misho 343: if (!t || !TASK_ROOT(t))
1.1 misho 344: return (void*) -1;
1.24.4.1 misho 345: #ifdef KQ_DISABLE
346: r = TASK_ROOT(t);
347: #endif
1.1 misho 348:
1.24.4.1 misho 349: #ifndef KQ_DISABLE
1.2 misho 350: #ifdef __NetBSD__
1.8 misho 351: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, (intptr_t) TASK_FD(t));
1.2 misho 352: #else
1.8 misho 353: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, (void*) TASK_FD(t));
1.2 misho 354: #endif
1.4 misho 355: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
356: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
357: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1.3 misho 358: else
359: LOGERR;
1.1 misho 360: return (void*) -1;
361: }
1.24.4.1 misho 362: #else
363: FD_SET(TASK_FD(t), &r->root_fds[0]);
364: if (TASK_FD(t) >= r->root_kq)
365: r->root_kq = TASK_FD(t) + 1;
366: #endif
1.1 misho 367:
368: return NULL;
369: }
370:
371: /*
372: * sched_hook_write() - Default WRITE hook
1.5 misho 373: *
1.1 misho 374: * @task = current task
375: * @arg = unused
376: * return: <0 errors and 0 ok
377: */
378: void *
379: sched_hook_write(void *task, void *arg __unused)
380: {
381: sched_task_t *t = task;
1.24.4.1 misho 382: #ifndef KQ_DISABLE
1.1 misho 383: struct kevent chg[1];
1.2 misho 384: struct timespec timeout = { 0, 0 };
1.24.4.1 misho 385: #else
386: sched_root_task_t *r = NULL;
387: #endif
1.1 misho 388:
1.6 misho 389: if (!t || !TASK_ROOT(t))
1.1 misho 390: return (void*) -1;
1.24.4.1 misho 391: #ifdef KQ_DISABLE
392: r = TASK_ROOT(t);
393: #endif
1.1 misho 394:
1.24.4.1 misho 395: #ifndef KQ_DISABLE
1.2 misho 396: #ifdef __NetBSD__
1.8 misho 397: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, (intptr_t) TASK_FD(t));
1.2 misho 398: #else
1.8 misho 399: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, (void*) TASK_FD(t));
1.2 misho 400: #endif
1.4 misho 401: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
402: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
403: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1.3 misho 404: else
405: LOGERR;
1.1 misho 406: return (void*) -1;
407: }
1.24.4.1 misho 408: #else
409: FD_SET(TASK_FD(t), &r->root_fds[1]);
410: if (TASK_FD(t) >= r->root_kq)
411: r->root_kq = TASK_FD(t) + 1;
412: #endif
1.1 misho 413:
414: return NULL;
415: }
416:
417: /*
1.7 misho 418: * sched_hook_alarm() - Default ALARM hook
419: *
420: * @task = current task
421: * @arg = unused
422: * return: <0 errors and 0 ok
423: */
424: void *
425: sched_hook_alarm(void *task, void *arg __unused)
426: {
1.24.4.1 misho 427: #ifndef KQ_DISABLE
1.7 misho 428: sched_task_t *t = task;
429: struct kevent chg[1];
430: struct timespec timeout = { 0, 0 };
431:
432: if (!t || !TASK_ROOT(t))
433: return (void*) -1;
434:
435: #ifdef __NetBSD__
1.19 misho 436: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, EV_ADD | EV_CLEAR, 0,
1.7 misho 437: t->task_val.ts.tv_sec * 1000 + t->task_val.ts.tv_nsec / 1000000,
438: (intptr_t) TASK_DATA(t));
439: #else
1.19 misho 440: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, EV_ADD | EV_CLEAR, 0,
1.7 misho 441: t->task_val.ts.tv_sec * 1000 + t->task_val.ts.tv_nsec / 1000000,
442: (void*) TASK_DATA(t));
443: #endif
444: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
445: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
446: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
447: else
448: LOGERR;
449: return (void*) -1;
450: }
451:
1.24.4.1 misho 452: #endif
1.7 misho 453: return NULL;
454: }
455:
456: /*
1.8 misho 457: * sched_hook_node() - Default NODE hook
458: *
459: * @task = current task
460: * @arg = unused
461: * return: <0 errors and 0 ok
462: */
463: void *
464: sched_hook_node(void *task, void *arg __unused)
465: {
1.24.4.1 misho 466: #ifndef KQ_DISABLE
1.8 misho 467: sched_task_t *t = task;
468: struct kevent chg[1];
469: struct timespec timeout = { 0, 0 };
470:
471: if (!t || !TASK_ROOT(t))
472: return (void*) -1;
473:
474: #ifdef __NetBSD__
475: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, EV_ADD | EV_CLEAR,
476: NOTE_DELETE | NOTE_WRITE | NOTE_EXTEND | NOTE_ATTRIB |
477: NOTE_LINK | NOTE_RENAME | NOTE_REVOKE, 0, (intptr_t) TASK_FD(t));
478: #else
479: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, EV_ADD | EV_CLEAR,
480: NOTE_DELETE | NOTE_WRITE | NOTE_EXTEND | NOTE_ATTRIB |
481: NOTE_LINK | NOTE_RENAME | NOTE_REVOKE, 0, (void*) TASK_FD(t));
482: #endif
483: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
484: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
485: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
486: else
487: LOGERR;
488: return (void*) -1;
489: }
490:
1.24.4.1 misho 491: #endif
1.8 misho 492: return NULL;
493: }
494:
495: /*
496: * sched_hook_proc() - Default PROC hook
497: *
498: * @task = current task
499: * @arg = unused
500: * return: <0 errors and 0 ok
501: */
502: void *
503: sched_hook_proc(void *task, void *arg __unused)
504: {
1.24.4.1 misho 505: #ifndef KQ_DISABLE
1.8 misho 506: sched_task_t *t = task;
507: struct kevent chg[1];
508: struct timespec timeout = { 0, 0 };
509:
510: if (!t || !TASK_ROOT(t))
511: return (void*) -1;
512:
513: #ifdef __NetBSD__
514: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, EV_ADD | EV_CLEAR,
515: NOTE_EXIT | NOTE_FORK | NOTE_EXEC | NOTE_TRACK, 0, (intptr_t) TASK_VAL(t));
516: #else
517: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, EV_ADD | EV_CLEAR,
518: NOTE_EXIT | NOTE_FORK | NOTE_EXEC | NOTE_TRACK, 0, (void*) TASK_VAL(t));
519: #endif
520: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
521: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
522: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
523: else
524: LOGERR;
525: return (void*) -1;
526: }
527:
1.24.4.1 misho 528: #endif
1.8 misho 529: return NULL;
530: }
531:
532: /*
533: * sched_hook_signal() - Default SIGNAL hook
534: *
535: * @task = current task
536: * @arg = unused
537: * return: <0 errors and 0 ok
538: */
539: void *
540: sched_hook_signal(void *task, void *arg __unused)
541: {
1.24.4.1 misho 542: #ifndef KQ_DISABLE
1.8 misho 543: sched_task_t *t = task;
544: struct kevent chg[1];
545: struct timespec timeout = { 0, 0 };
546:
547: if (!t || !TASK_ROOT(t))
548: return (void*) -1;
549:
1.18 misho 550: /* ignore signal */
551: signal(TASK_VAL(t), SIG_IGN);
552:
1.8 misho 553: #ifdef __NetBSD__
1.19 misho 554: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, EV_ADD | EV_CLEAR, 0, 0, (intptr_t) TASK_VAL(t));
1.8 misho 555: #else
1.19 misho 556: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, EV_ADD | EV_CLEAR, 0, 0, (void*) TASK_VAL(t));
1.8 misho 557: #endif
558: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
559: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
560: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
561: else
562: LOGERR;
563: return (void*) -1;
564: }
565:
1.24.4.1 misho 566: #endif
1.8 misho 567: return NULL;
568: }
569:
570: /*
571: * sched_hook_user() - Default USER hook
572: *
573: * @task = current task
574: * @arg = unused
575: * return: <0 errors and 0 ok
576: */
577: #ifdef EVFILT_USER
578: void *
579: sched_hook_user(void *task, void *arg __unused)
580: {
1.24.4.1 misho 581: #ifndef KQ_DISABLE
1.8 misho 582: sched_task_t *t = task;
583: struct kevent chg[1];
584: struct timespec timeout = { 0, 0 };
585:
586: if (!t || !TASK_ROOT(t))
587: return (void*) -1;
588:
589: #ifdef __NetBSD__
590: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, EV_ADD | EV_CLEAR, TASK_DATLEN(t),
591: 0, (intptr_t) TASK_VAL(t));
592: #else
593: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, EV_ADD | EV_CLEAR, TASK_DATLEN(t),
594: 0, (void*) TASK_VAL(t));
595: #endif
596: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
597: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
598: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
599: else
600: LOGERR;
601: return (void*) -1;
602: }
603:
1.24.4.1 misho 604: #endif
1.8 misho 605: return NULL;
606: }
607: #endif
608:
609: /*
1.1 misho 610: * sched_hook_fetch() - Default FETCH hook
1.5 misho 611: *
1.1 misho 612: * @root = root task
613: * @arg = unused
614: * return: NULL error or !=NULL fetched task
615: */
616: void *
617: sched_hook_fetch(void *root, void *arg __unused)
618: {
619: sched_root_task_t *r = root;
1.6 misho 620: sched_task_t *task, *tmp;
1.24.4.2! misho 621: struct timespec now, m, mtmp;
1.24.4.1 misho 622: #ifndef KQ_DISABLE
1.1 misho 623: struct kevent evt[1], res[KQ_EVENTS];
1.24.4.1 misho 624: struct timespec *timeout, m, mtmp;
625: #else
1.24.4.2! misho 626: struct timeval *timeout, tv;
1.24.4.1 misho 627: #endif
1.9 misho 628: register int i, flg;
1.1 misho 629: int en;
1.11 misho 630: #ifdef AIO_SUPPORT
631: int len, fd;
632: struct aiocb *acb;
633: #ifdef EVFILT_LIO
634: int l;
635: register int j;
636: off_t off;
637: struct aiocb **acbs;
638: struct iovec *iv;
639: #endif /* EVFILT_LIO */
640: #endif /* AIO_SUPPORT */
1.1 misho 641:
1.6 misho 642: if (!r)
1.1 misho 643: return NULL;
644:
645: /* get new task by queue priority */
646: while ((task = TAILQ_FIRST(&r->root_event))) {
1.4 misho 647: #ifdef HAVE_LIBPTHREAD
648: pthread_mutex_lock(&r->root_mtx[taskEVENT]);
649: #endif
1.1 misho 650: TAILQ_REMOVE(&r->root_event, task, task_node);
1.4 misho 651: #ifdef HAVE_LIBPTHREAD
652: pthread_mutex_unlock(&r->root_mtx[taskEVENT]);
653: #endif
1.1 misho 654: task->task_type = taskUNUSE;
1.4 misho 655: #ifdef HAVE_LIBPTHREAD
656: pthread_mutex_lock(&r->root_mtx[taskUNUSE]);
657: #endif
1.1 misho 658: TAILQ_INSERT_TAIL(&r->root_unuse, task, task_node);
1.4 misho 659: #ifdef HAVE_LIBPTHREAD
660: pthread_mutex_unlock(&r->root_mtx[taskUNUSE]);
661: #endif
1.1 misho 662: return task;
663: }
664: while ((task = TAILQ_FIRST(&r->root_ready))) {
1.4 misho 665: #ifdef HAVE_LIBPTHREAD
666: pthread_mutex_lock(&r->root_mtx[taskREADY]);
667: #endif
1.1 misho 668: TAILQ_REMOVE(&r->root_ready, task, task_node);
1.4 misho 669: #ifdef HAVE_LIBPTHREAD
670: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
671: #endif
1.1 misho 672: task->task_type = taskUNUSE;
1.4 misho 673: #ifdef HAVE_LIBPTHREAD
674: pthread_mutex_lock(&r->root_mtx[taskUNUSE]);
675: #endif
1.1 misho 676: TAILQ_INSERT_TAIL(&r->root_unuse, task, task_node);
1.4 misho 677: #ifdef HAVE_LIBPTHREAD
678: pthread_mutex_unlock(&r->root_mtx[taskUNUSE]);
679: #endif
1.1 misho 680: return task;
681: }
682:
683: #ifdef TIMER_WITHOUT_SORT
1.4 misho 684: clock_gettime(CLOCK_MONOTONIC, &now);
1.1 misho 685:
1.4 misho 686: sched_timespecclear(&r->root_wait);
1.1 misho 687: TAILQ_FOREACH(task, &r->root_timer, task_node) {
1.4 misho 688: if (!sched_timespecisset(&r->root_wait))
689: r->root_wait = TASK_TS(task);
690: else if (sched_timespeccmp(&TASK_TS(task), &r->root_wait, -) < 0)
691: r->root_wait = TASK_TS(task);
1.1 misho 692: }
693:
694: if (TAILQ_FIRST(&r->root_timer)) {
695: m = r->root_wait;
1.4 misho 696: sched_timespecsub(&m, &now, &mtmp);
1.1 misho 697: r->root_wait = mtmp;
698: } else {
699: /* set wait INFTIM */
1.4 misho 700: sched_timespecinf(&r->root_wait);
1.24.4.1 misho 701: }
702: #else /* ! TIMER_WITHOUT_SORT */
1.12 misho 703: if (!TAILQ_FIRST(&r->root_task) && (task = TAILQ_FIRST(&r->root_timer))) {
1.4 misho 704: clock_gettime(CLOCK_MONOTONIC, &now);
1.1 misho 705:
1.4 misho 706: m = TASK_TS(task);
707: sched_timespecsub(&m, &now, &mtmp);
1.1 misho 708: r->root_wait = mtmp;
709: } else {
710: /* set wait INFTIM */
1.4 misho 711: sched_timespecinf(&r->root_wait);
1.1 misho 712: }
1.24.4.1 misho 713: #endif /* TIMER_WITHOUT_SORT */
1.12 misho 714: /* if present member of task, set NOWAIT */
715: if (TAILQ_FIRST(&r->root_task))
1.4 misho 716: sched_timespecclear(&r->root_wait);
1.1 misho 717:
1.24.4.2! misho 718: if (r->root_wait.tv_sec != -1 && r->root_wait.tv_nsec != -1) {
1.24.4.1 misho 719: #ifndef KQ_DISABLE
1.4 misho 720: timeout = &r->root_wait;
1.24.4.1 misho 721: #else
1.24.4.2! misho 722: sched_timespec2val(&r->root_wait, &tv);
! 723: timeout = &tv;
1.24.4.1 misho 724: #endif /* KQ_DISABLE */
1.24.4.2! misho 725: } else if (sched_timespecisinf(&r->root_poll))
1.1 misho 726: timeout = NULL;
1.24.4.2! misho 727: else {
! 728: #ifndef KQ_DISABLE
1.4 misho 729: timeout = &r->root_poll;
1.24.4.2! misho 730: #else
! 731: sched_timespec2val(&r->root_poll, &tv);
! 732: timeout = &tv;
! 733: #endif /* KQ_DISABLE */
! 734: }
1.24.4.1 misho 735:
736: #ifndef KQ_DISABLE
1.1 misho 737: if ((en = kevent(r->root_kq, NULL, 0, res, KQ_EVENTS, timeout)) == -1) {
1.24.4.1 misho 738: #else
739: if ((en = select(r->root_kq, &r->root_fds[0], &r->root_fds[1],
740: &r->root_fds[0], timeout)) == -1) {
741: #endif /* KQ_DISABLE */
1.3 misho 742: if (r->root_hooks.hook_exec.exception) {
743: if (r->root_hooks.hook_exec.exception(r, NULL))
744: return NULL;
1.6 misho 745: } else if (errno != EINTR)
1.3 misho 746: LOGERR;
1.24 misho 747: goto skip_event;
1.1 misho 748: }
749:
1.24 misho 750: /* kevent dispatcher */
1.4 misho 751: now.tv_sec = now.tv_nsec = 0;
1.1 misho 752: /* Go and catch the cat into pipes ... */
753: for (i = 0; i < en; i++) {
1.24.4.1 misho 754: #ifndef KQ_DISABLE
1.1 misho 755: memcpy(evt, &res[i], sizeof evt);
756: evt->flags = EV_DELETE;
757: /* Put read/write task to ready queue */
758: switch (res[i].filter) {
759: case EVFILT_READ:
1.9 misho 760: flg = 0;
1.6 misho 761: TAILQ_FOREACH_SAFE(task, &r->root_read, task_node, tmp) {
1.3 misho 762: if (TASK_FD(task) != ((intptr_t) res[i].udata))
1.1 misho 763: continue;
1.14 misho 764: else {
1.9 misho 765: flg++;
1.14 misho 766: TASK_RET(task) = res[i].data;
1.19 misho 767: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 768: }
1.1 misho 769: /* remove read handle */
1.4 misho 770: #ifdef HAVE_LIBPTHREAD
771: pthread_mutex_lock(&r->root_mtx[taskREAD]);
772: #endif
1.1 misho 773: TAILQ_REMOVE(&r->root_read, task, task_node);
1.4 misho 774: #ifdef HAVE_LIBPTHREAD
775: pthread_mutex_unlock(&r->root_mtx[taskREAD]);
776: #endif
1.3 misho 777: if (r->root_hooks.hook_exec.exception && res[i].flags & EV_EOF) {
778: if (r->root_hooks.hook_exec.exception(r, (void*) EV_EOF)) {
779: task->task_type = taskUNUSE;
1.4 misho 780: #ifdef HAVE_LIBPTHREAD
781: pthread_mutex_lock(&r->root_mtx[taskUNUSE]);
782: #endif
1.3 misho 783: TAILQ_INSERT_TAIL(&r->root_unuse, task, task_node);
1.4 misho 784: #ifdef HAVE_LIBPTHREAD
785: pthread_mutex_unlock(&r->root_mtx[taskUNUSE]);
786: #endif
1.3 misho 787: } else {
788: task->task_type = taskREADY;
1.4 misho 789: #ifdef HAVE_LIBPTHREAD
790: pthread_mutex_lock(&r->root_mtx[taskREADY]);
791: #endif
1.3 misho 792: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1.4 misho 793: #ifdef HAVE_LIBPTHREAD
794: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
795: #endif
1.3 misho 796: }
797: } else {
1.2 misho 798: task->task_type = taskREADY;
1.4 misho 799: #ifdef HAVE_LIBPTHREAD
800: pthread_mutex_lock(&r->root_mtx[taskREADY]);
801: #endif
1.2 misho 802: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1.4 misho 803: #ifdef HAVE_LIBPTHREAD
804: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
805: #endif
1.3 misho 806: }
1.1 misho 807: }
1.9 misho 808: /* if match at least 2, don't remove resouce of event */
809: if (flg > 1)
810: evt->flags ^= evt->flags;
1.1 misho 811: break;
812: case EVFILT_WRITE:
1.9 misho 813: flg = 0;
1.6 misho 814: TAILQ_FOREACH_SAFE(task, &r->root_write, task_node, tmp) {
1.3 misho 815: if (TASK_FD(task) != ((intptr_t) res[i].udata))
1.1 misho 816: continue;
1.14 misho 817: else {
1.9 misho 818: flg++;
1.14 misho 819: TASK_RET(task) = res[i].data;
1.19 misho 820: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 821: }
1.1 misho 822: /* remove write handle */
1.4 misho 823: #ifdef HAVE_LIBPTHREAD
824: pthread_mutex_lock(&r->root_mtx[taskWRITE]);
825: #endif
1.1 misho 826: TAILQ_REMOVE(&r->root_write, task, task_node);
1.4 misho 827: #ifdef HAVE_LIBPTHREAD
828: pthread_mutex_unlock(&r->root_mtx[taskWRITE]);
829: #endif
1.3 misho 830: if (r->root_hooks.hook_exec.exception && res[i].flags & EV_EOF) {
831: if (r->root_hooks.hook_exec.exception(r, (void*) EV_EOF)) {
832: task->task_type = taskUNUSE;
1.4 misho 833: #ifdef HAVE_LIBPTHREAD
834: pthread_mutex_lock(&r->root_mtx[taskUNUSE]);
835: #endif
1.3 misho 836: TAILQ_INSERT_TAIL(&r->root_unuse, task, task_node);
1.4 misho 837: #ifdef HAVE_LIBPTHREAD
838: pthread_mutex_unlock(&r->root_mtx[taskUNUSE]);
839: #endif
1.3 misho 840: } else {
841: task->task_type = taskREADY;
1.4 misho 842: #ifdef HAVE_LIBPTHREAD
843: pthread_mutex_lock(&r->root_mtx[taskREADY]);
844: #endif
1.3 misho 845: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1.4 misho 846: #ifdef HAVE_LIBPTHREAD
847: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
848: #endif
1.3 misho 849: }
850: } else {
1.2 misho 851: task->task_type = taskREADY;
1.4 misho 852: #ifdef HAVE_LIBPTHREAD
853: pthread_mutex_lock(&r->root_mtx[taskREADY]);
854: #endif
1.2 misho 855: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1.4 misho 856: #ifdef HAVE_LIBPTHREAD
857: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
858: #endif
1.3 misho 859: }
1.1 misho 860: }
1.9 misho 861: /* if match at least 2, don't remove resouce of event */
862: if (flg > 1)
863: evt->flags ^= evt->flags;
1.1 misho 864: break;
1.7 misho 865: case EVFILT_TIMER:
1.9 misho 866: flg = 0;
1.7 misho 867: TAILQ_FOREACH_SAFE(task, &r->root_alarm, task_node, tmp) {
868: if ((uintptr_t) TASK_DATA(task) != ((uintptr_t) res[i].udata))
869: continue;
1.14 misho 870: else {
1.9 misho 871: flg++;
1.14 misho 872: TASK_RET(task) = res[i].data;
1.19 misho 873: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 874: }
1.7 misho 875: /* remove alarm handle */
876: #ifdef HAVE_LIBPTHREAD
877: pthread_mutex_lock(&r->root_mtx[taskALARM]);
878: #endif
879: TAILQ_REMOVE(&r->root_alarm, task, task_node);
880: #ifdef HAVE_LIBPTHREAD
881: pthread_mutex_unlock(&r->root_mtx[taskALARM]);
882: #endif
883: task->task_type = taskREADY;
884: #ifdef HAVE_LIBPTHREAD
885: pthread_mutex_lock(&r->root_mtx[taskREADY]);
886: #endif
887: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
888: #ifdef HAVE_LIBPTHREAD
889: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
890: #endif
891: }
1.9 misho 892: /* if match at least 2, don't remove resouce of event */
893: if (flg > 1)
894: evt->flags ^= evt->flags;
1.7 misho 895: break;
1.8 misho 896: case EVFILT_VNODE:
1.9 misho 897: flg = 0;
1.8 misho 898: TAILQ_FOREACH_SAFE(task, &r->root_node, task_node, tmp) {
899: if (TASK_FD(task) != ((intptr_t) res[i].udata))
900: continue;
901: else {
1.9 misho 902: flg++;
1.14 misho 903: TASK_RET(task) = res[i].data;
1.19 misho 904: TASK_FLAG(task) = (u_long) res[i].fflags;
1.8 misho 905: }
906: /* remove node handle */
907: #ifdef HAVE_LIBPTHREAD
908: pthread_mutex_lock(&r->root_mtx[taskNODE]);
909: #endif
910: TAILQ_REMOVE(&r->root_node, task, task_node);
911: #ifdef HAVE_LIBPTHREAD
912: pthread_mutex_unlock(&r->root_mtx[taskNODE]);
913: #endif
914: task->task_type = taskREADY;
915: #ifdef HAVE_LIBPTHREAD
916: pthread_mutex_lock(&r->root_mtx[taskREADY]);
917: #endif
918: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
919: #ifdef HAVE_LIBPTHREAD
920: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
921: #endif
922: }
1.9 misho 923: /* if match at least 2, don't remove resouce of event */
924: if (flg > 1)
925: evt->flags ^= evt->flags;
1.8 misho 926: break;
927: case EVFILT_PROC:
1.9 misho 928: flg = 0;
1.8 misho 929: TAILQ_FOREACH_SAFE(task, &r->root_proc, task_node, tmp) {
930: if (TASK_VAL(task) != ((uintptr_t) res[i].udata))
931: continue;
932: else {
1.9 misho 933: flg++;
1.14 misho 934: TASK_RET(task) = res[i].data;
1.19 misho 935: TASK_FLAG(task) = (u_long) res[i].fflags;
1.8 misho 936: }
937: /* remove proc handle */
938: #ifdef HAVE_LIBPTHREAD
939: pthread_mutex_lock(&r->root_mtx[taskPROC]);
940: #endif
941: TAILQ_REMOVE(&r->root_proc, task, task_node);
942: #ifdef HAVE_LIBPTHREAD
943: pthread_mutex_unlock(&r->root_mtx[taskPROC]);
944: #endif
945: task->task_type = taskREADY;
946: #ifdef HAVE_LIBPTHREAD
947: pthread_mutex_lock(&r->root_mtx[taskREADY]);
948: #endif
949: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
950: #ifdef HAVE_LIBPTHREAD
951: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
952: #endif
953: }
1.9 misho 954: /* if match at least 2, don't remove resouce of event */
955: if (flg > 1)
956: evt->flags ^= evt->flags;
1.8 misho 957: break;
958: case EVFILT_SIGNAL:
1.9 misho 959: flg = 0;
1.8 misho 960: TAILQ_FOREACH_SAFE(task, &r->root_signal, task_node, tmp) {
961: if (TASK_VAL(task) != ((uintptr_t) res[i].udata))
962: continue;
1.14 misho 963: else {
1.9 misho 964: flg++;
1.14 misho 965: TASK_RET(task) = res[i].data;
1.19 misho 966: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 967: }
1.8 misho 968: /* remove signal handle */
969: #ifdef HAVE_LIBPTHREAD
970: pthread_mutex_lock(&r->root_mtx[taskSIGNAL]);
971: #endif
972: TAILQ_REMOVE(&r->root_signal, task, task_node);
973: #ifdef HAVE_LIBPTHREAD
974: pthread_mutex_unlock(&r->root_mtx[taskSIGNAL]);
975: #endif
976: task->task_type = taskREADY;
977: #ifdef HAVE_LIBPTHREAD
978: pthread_mutex_lock(&r->root_mtx[taskREADY]);
979: #endif
980: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
981: #ifdef HAVE_LIBPTHREAD
982: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
983: #endif
984: }
1.9 misho 985: /* if match at least 2, don't remove resouce of event */
986: if (flg > 1)
987: evt->flags ^= evt->flags;
1.8 misho 988: break;
1.11 misho 989: #ifdef AIO_SUPPORT
990: case EVFILT_AIO:
991: flg = 0;
992: TAILQ_FOREACH_SAFE(task, &r->root_aio, task_node, tmp) {
993: acb = (struct aiocb*) TASK_VAL(task);
994: if (acb != ((struct aiocb*) res[i].udata))
995: continue;
1.14 misho 996: else {
1.11 misho 997: flg++;
1.14 misho 998: TASK_RET(task) = res[i].data;
1.19 misho 999: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 1000: }
1.11 misho 1001: /* remove user handle */
1002: #ifdef HAVE_LIBPTHREAD
1003: pthread_mutex_lock(&r->root_mtx[taskAIO]);
1004: #endif
1005: TAILQ_REMOVE(&r->root_aio, task, task_node);
1006: #ifdef HAVE_LIBPTHREAD
1007: pthread_mutex_unlock(&r->root_mtx[taskAIO]);
1008: #endif
1009: task->task_type = taskREADY;
1010: #ifdef HAVE_LIBPTHREAD
1011: pthread_mutex_lock(&r->root_mtx[taskREADY]);
1012: #endif
1013: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1014: #ifdef HAVE_LIBPTHREAD
1015: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
1016: #endif
1017: fd = acb->aio_fildes;
1018: if ((len = aio_return(acb)) != -1) {
1019: if (lseek(fd, acb->aio_offset + len, SEEK_CUR) == -1)
1020: LOGERR;
1021: } else
1022: LOGERR;
1023: free(acb);
1024: TASK_DATLEN(task) = (u_long) len;
1025: TASK_FD(task) = fd;
1026: }
1027: /* if match at least 2, don't remove resouce of event */
1028: if (flg > 1)
1029: evt->flags ^= evt->flags;
1030: break;
1031: #ifdef EVFILT_LIO
1032: case EVFILT_LIO:
1033: flg = 0;
1034: TAILQ_FOREACH_SAFE(task, &r->root_lio, task_node, tmp) {
1035: acbs = (struct aiocb**) TASK_VAL(task);
1036: if (acbs != ((struct aiocb**) res[i].udata))
1037: continue;
1.14 misho 1038: else {
1.11 misho 1039: flg++;
1.14 misho 1040: TASK_RET(task) = res[i].data;
1.19 misho 1041: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 1042: }
1.11 misho 1043: /* remove user handle */
1044: #ifdef HAVE_LIBPTHREAD
1045: pthread_mutex_lock(&r->root_mtx[taskLIO]);
1046: #endif
1047: TAILQ_REMOVE(&r->root_lio, task, task_node);
1048: #ifdef HAVE_LIBPTHREAD
1049: pthread_mutex_unlock(&r->root_mtx[taskLIO]);
1050: #endif
1051: task->task_type = taskREADY;
1052: #ifdef HAVE_LIBPTHREAD
1053: pthread_mutex_lock(&r->root_mtx[taskREADY]);
1054: #endif
1055: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1056: #ifdef HAVE_LIBPTHREAD
1057: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
1058: #endif
1059: iv = (struct iovec*) TASK_DATA(task);
1060: fd = acbs[0]->aio_fildes;
1061: off = acbs[0]->aio_offset;
1062: for (j = len = 0; i < TASK_DATLEN(task); len += l, i++) {
1063: if ((iv[i].iov_len = aio_return(acbs[i])) == -1)
1064: l = 0;
1065: else
1066: l = iv[i].iov_len;
1067: free(acbs[i]);
1068: }
1069: free(acbs);
1070: TASK_DATLEN(task) = (u_long) len;
1071: TASK_FD(task) = fd;
1072:
1073: if (lseek(fd, off + len, SEEK_CUR) == -1)
1074: LOGERR;
1075: }
1076: /* if match at least 2, don't remove resouce of event */
1077: if (flg > 1)
1078: evt->flags ^= evt->flags;
1079: break;
1080: #endif /* EVFILT_LIO */
1081: #endif /* AIO_SUPPORT */
1.8 misho 1082: #ifdef EVFILT_USER
1083: case EVFILT_USER:
1.9 misho 1084: flg = 0;
1.8 misho 1085: TAILQ_FOREACH_SAFE(task, &r->root_user, task_node, tmp) {
1086: if (TASK_VAL(task) != ((uintptr_t) res[i].udata))
1087: continue;
1088: else {
1.9 misho 1089: flg++;
1.14 misho 1090: TASK_RET(task) = res[i].data;
1.19 misho 1091: TASK_FLAG(task) = (u_long) res[i].fflags;
1.8 misho 1092: }
1093: /* remove user handle */
1094: #ifdef HAVE_LIBPTHREAD
1095: pthread_mutex_lock(&r->root_mtx[taskUSER]);
1096: #endif
1097: TAILQ_REMOVE(&r->root_user, task, task_node);
1098: #ifdef HAVE_LIBPTHREAD
1099: pthread_mutex_unlock(&r->root_mtx[taskUSER]);
1100: #endif
1101: task->task_type = taskREADY;
1102: #ifdef HAVE_LIBPTHREAD
1103: pthread_mutex_lock(&r->root_mtx[taskREADY]);
1104: #endif
1105: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1106: #ifdef HAVE_LIBPTHREAD
1107: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
1108: #endif
1109: }
1.9 misho 1110: /* if match at least 2, don't remove resouce of event */
1111: if (flg > 1)
1112: evt->flags ^= evt->flags;
1.8 misho 1113: break;
1.11 misho 1114: #endif /* EVFILT_USER */
1.1 misho 1115: }
1.4 misho 1116: if (kevent(r->root_kq, evt, 1, NULL, 0, &now) == -1) {
1.3 misho 1117: if (r->root_hooks.hook_exec.exception) {
1118: if (r->root_hooks.hook_exec.exception(r, NULL))
1119: return NULL;
1120: } else
1121: LOGERR;
1122: }
1.24.4.1 misho 1123: #else /* end of kevent dispatcher */
1124: #endif /* KQ_DISABLE */
1125: }
1.1 misho 1126:
1.24 misho 1127: skip_event:
1.2 misho 1128: /* timer update & put in ready queue */
1.4 misho 1129: clock_gettime(CLOCK_MONOTONIC, &now);
1.1 misho 1130:
1.6 misho 1131: TAILQ_FOREACH_SAFE(task, &r->root_timer, task_node, tmp)
1.4 misho 1132: if (sched_timespeccmp(&now, &TASK_TS(task), -) >= 0) {
1133: #ifdef HAVE_LIBPTHREAD
1134: pthread_mutex_lock(&r->root_mtx[taskTIMER]);
1135: #endif
1.1 misho 1136: TAILQ_REMOVE(&r->root_timer, task, task_node);
1.4 misho 1137: #ifdef HAVE_LIBPTHREAD
1138: pthread_mutex_unlock(&r->root_mtx[taskTIMER]);
1139: #endif
1.1 misho 1140: task->task_type = taskREADY;
1.4 misho 1141: #ifdef HAVE_LIBPTHREAD
1142: pthread_mutex_lock(&r->root_mtx[taskREADY]);
1143: #endif
1.1 misho 1144: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1.4 misho 1145: #ifdef HAVE_LIBPTHREAD
1146: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
1147: #endif
1.1 misho 1148: }
1149:
1.12 misho 1150: /* put regular task priority task to ready queue,
1.13 misho 1151: if there is no ready task or reach max missing hit for regular task */
1.12 misho 1152: if ((task = TAILQ_FIRST(&r->root_task))) {
1.13 misho 1153: if (!TAILQ_FIRST(&r->root_ready) || r->root_miss >= TASK_VAL(task)) {
1154: r->root_miss ^= r->root_miss;
1.1 misho 1155:
1.4 misho 1156: #ifdef HAVE_LIBPTHREAD
1.12 misho 1157: pthread_mutex_lock(&r->root_mtx[taskTASK]);
1.4 misho 1158: #endif
1.12 misho 1159: TAILQ_REMOVE(&r->root_task, task, task_node);
1.4 misho 1160: #ifdef HAVE_LIBPTHREAD
1.12 misho 1161: pthread_mutex_unlock(&r->root_mtx[taskTASK]);
1.4 misho 1162: #endif
1.1 misho 1163: task->task_type = taskREADY;
1.4 misho 1164: #ifdef HAVE_LIBPTHREAD
1165: pthread_mutex_lock(&r->root_mtx[taskREADY]);
1166: #endif
1.1 misho 1167: TAILQ_INSERT_TAIL(&r->root_ready, task, task_node);
1.4 misho 1168: #ifdef HAVE_LIBPTHREAD
1169: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
1170: #endif
1.1 misho 1171: } else
1.13 misho 1172: r->root_miss++;
1.1 misho 1173: } else
1.13 misho 1174: r->root_miss ^= r->root_miss;
1.1 misho 1175:
1176: /* OK, lets get ready task !!! */
1.6 misho 1177: task = TAILQ_FIRST(&r->root_ready);
1178: if (!(task))
1179: return NULL;
1180:
1.4 misho 1181: #ifdef HAVE_LIBPTHREAD
1182: pthread_mutex_lock(&r->root_mtx[taskREADY]);
1183: #endif
1.1 misho 1184: TAILQ_REMOVE(&r->root_ready, task, task_node);
1.4 misho 1185: #ifdef HAVE_LIBPTHREAD
1186: pthread_mutex_unlock(&r->root_mtx[taskREADY]);
1187: #endif
1.1 misho 1188: task->task_type = taskUNUSE;
1.4 misho 1189: #ifdef HAVE_LIBPTHREAD
1190: pthread_mutex_lock(&r->root_mtx[taskUNUSE]);
1191: #endif
1.1 misho 1192: TAILQ_INSERT_TAIL(&r->root_unuse, task, task_node);
1.4 misho 1193: #ifdef HAVE_LIBPTHREAD
1194: pthread_mutex_unlock(&r->root_mtx[taskUNUSE]);
1195: #endif
1.1 misho 1196: return task;
1197: }
1.3 misho 1198:
1199: /*
1200: * sched_hook_exception() - Default EXCEPTION hook
1.5 misho 1201: *
1.3 misho 1202: * @root = root task
1203: * @arg = custom handling: if arg == EV_EOF or other value; default: arg == NULL log errno
1204: * return: <0 errors and 0 ok
1205: */
1206: void *
1207: sched_hook_exception(void *root, void *arg)
1208: {
1209: sched_root_task_t *r = root;
1210:
1.6 misho 1211: if (!r)
1.3 misho 1212: return NULL;
1213:
1214: /* custom exception handling ... */
1215: if (arg) {
1216: if (arg == (void*) EV_EOF)
1217: return NULL;
1218: return (void*) -1; /* raise scheduler error!!! */
1219: }
1220:
1221: /* if error hook exists */
1222: if (r->root_hooks.hook_root.error)
1223: return (r->root_hooks.hook_root.error(root, (void*) ((intptr_t) errno)));
1224:
1225: /* default case! */
1226: LOGERR;
1227: return NULL;
1228: }
1.5 misho 1229:
1230: /*
1231: * sched_hook_condition() - Default CONDITION hook
1232: *
1233: * @root = root task
1234: * @arg = killState from schedRun()
1235: * return: NULL kill scheduler loop or !=NULL ok
1236: */
1237: void *
1238: sched_hook_condition(void *root, void *arg)
1239: {
1240: sched_root_task_t *r = root;
1241:
1.6 misho 1242: if (!r)
1.5 misho 1243: return NULL;
1244:
1245: return (void*) (r->root_cond - *(intptr_t*) arg);
1246: }
1.19 misho 1247:
1248: /*
1249: * sched_hook_rtc() - Default RTC hook
1250: *
1251: * @task = current task
1252: * @arg = unused
1253: * return: <0 errors and 0 ok
1254: */
1255: #if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME)
1256: void *
1257: sched_hook_rtc(void *task, void *arg __unused)
1258: {
1259: sched_task_t *sigt = NULL, *t = task;
1260: struct itimerspec its;
1261: struct sigevent evt;
1262: timer_t tmr;
1263:
1264: if (!t || !TASK_ROOT(t))
1265: return (void*) -1;
1266:
1267: memset(&evt, 0, sizeof evt);
1268: evt.sigev_notify = SIGEV_SIGNAL;
1.20 misho 1269: evt.sigev_signo = (intptr_t) TASK_DATA(t) + SIGRTMIN;
1.19 misho 1270: evt.sigev_value.sival_ptr = TASK_DATA(t);
1271:
1272: if (timer_create(CLOCK_MONOTONIC, &evt, &tmr) == -1) {
1273: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
1274: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1275: else
1276: LOGERR;
1277: return (void*) -1;
1278: } else
1279: TASK_FLAG(t) = (u_long) tmr;
1280:
1.21 misho 1281: if (!(sigt = schedSignal(TASK_ROOT(t), _sched_rtcWrapper, TASK_ARG(t), evt.sigev_signo,
1282: t, (size_t) tmr))) {
1.19 misho 1283: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
1284: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1285: else
1286: LOGERR;
1287: timer_delete(tmr);
1288: return (void*) -1;
1289: } else
1290: TASK_RET(t) = (uintptr_t) sigt;
1291:
1292: memset(&its, 0, sizeof its);
1293: its.it_value.tv_sec = t->task_val.ts.tv_sec;
1294: its.it_value.tv_nsec = t->task_val.ts.tv_nsec;
1295:
1296: if (timer_settime(tmr, TIMER_RELTIME, &its, NULL) == -1) {
1297: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
1298: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1299: else
1300: LOGERR;
1301: schedCancel(sigt);
1302: timer_delete(tmr);
1303: return (void*) -1;
1304: }
1305:
1306: return NULL;
1307: }
1308: #endif /* HAVE_TIMER_CREATE */
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