Annotation of libaitsched/src/hooks.c, revision 1.28
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 $
1.28 ! misho 6: * $Id: hooks.c,v 1.27.2.10 2014/06/05 22:23:50 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:
1.25 misho 15: Copyright 2004 - 2014
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:
1.28 ! misho 50: static inline void
! 51: transit_task2ready(sched_task_t * __restrict t, sched_queue_t * __restrict q)
! 52: {
! 53: remove_task_from(t, q);
! 54:
! 55: t->task_type = taskREADY;
! 56: insert_task_to(t, &(TASK_ROOT(t))->root_ready);
! 57: }
! 58:
! 59: #ifdef HAVE_LIBPTHREAD
! 60: static void *
! 61: _sched_threadWrapper(sched_task_t *t)
! 62: {
! 63: void *ret = NULL;
! 64: sched_root_task_t *r;
! 65:
! 66: if (!t || !TASK_ROOT(t))
! 67: pthread_exit(ret);
! 68: else
! 69: r = (sched_root_task_t*) TASK_ROOT(t);
! 70:
! 71: pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
! 72: /*
! 73: pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
! 74: */
! 75:
! 76: /* notify parent, thread is ready for execution */
! 77: pthread_testcancel();
! 78:
! 79: ret = schedCall(t);
! 80: r->root_ret = ret;
! 81:
! 82: if (TASK_VAL(t)) {
! 83: transit_task2unuse(t, &r->root_thread);
! 84: TASK_VAL(t) = 0;
! 85: }
! 86:
! 87: pthread_exit(ret);
! 88: }
! 89: #endif
! 90:
! 91: #if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME) && defined(HAVE_TIMER_DELETE)
! 92: #if SUP_ENABLE == KQ_SUPPORT
! 93: static void *
! 94: _sched_rtcWrapper(sched_task_t *t)
! 95: {
! 96: sched_task_t *task;
! 97: void *ret;
! 98:
! 99: if (!t || !TASK_ROOT(t) || !TASK_DATA(t))
! 100: return NULL;
! 101: else {
! 102: task = (sched_task_t*) TASK_DATA(t);
! 103: timer_delete((timer_t) TASK_DATLEN(t));
! 104: }
! 105:
! 106: ret = schedCall(task);
! 107:
! 108: transit_task2unuse(task, &(TASK_ROOT(task))->root_rtc);
! 109: return ret;
! 110: }
! 111: #else
! 112: static void
! 113: _sched_rtcSigWrapper(int sig, siginfo_t *si, void *uc)
! 114: {
! 115: sched_task_t *task;
! 116:
! 117: if (si && si->si_value.sival_ptr) {
! 118: task = (sched_task_t*) si->si_value.sival_ptr;
! 119: timer_delete((timer_t) TASK_FLAG(task));
! 120:
! 121: TASK_RET(task) = (intptr_t) schedCall(task);
! 122:
! 123: transit_task2unuse(task, &(TASK_ROOT(task))->root_rtc);
! 124: }
! 125: }
! 126: #endif
! 127: #endif
! 128:
1.1 misho 129: /*
130: * sched_hook_init() - Default INIT hook
1.5 misho 131: *
1.1 misho 132: * @root = root task
1.6 misho 133: * @arg = unused
1.1 misho 134: * return: <0 errors and 0 ok
135: */
136: void *
1.6 misho 137: sched_hook_init(void *root, void *arg __unused)
1.1 misho 138: {
139: sched_root_task_t *r = root;
140:
1.6 misho 141: if (!r)
1.1 misho 142: return (void*) -1;
143:
1.28 ! misho 144: #if SUP_ENABLE == KQ_SUPPORT
1.1 misho 145: r->root_kq = kqueue();
146: if (r->root_kq == -1) {
147: LOGERR;
148: return (void*) -1;
149: }
1.28 ! misho 150: #elif SUP_ENABLE == EP_SUPPORT
! 151: r->root_kq = epoll_create(KQ_EVENTS);
! 152: if (r->root_kq == -1) {
! 153: LOGERR;
! 154: return (void*) -1;
! 155: }
1.25 misho 156: #else
157: r->root_kq ^= r->root_kq;
158: FD_ZERO(&r->root_fds[0]);
159: FD_ZERO(&r->root_fds[1]);
160: #endif
1.1 misho 161:
162: return NULL;
163: }
164:
165: /*
166: * sched_hook_fini() - Default FINI hook
1.5 misho 167: *
1.1 misho 168: * @root = root task
169: * @arg = unused
170: * return: <0 errors and 0 ok
171: */
172: void *
173: sched_hook_fini(void *root, void *arg __unused)
174: {
175: sched_root_task_t *r = root;
176:
177: if (!r)
178: return (void*) -1;
179:
1.28 ! misho 180: #if SUP_ENABLE == KQ_SUPPORT || SUP_ENABLE == EP_SUPPORT
1.1 misho 181: if (r->root_kq > 2) {
182: close(r->root_kq);
183: r->root_kq = 0;
184: }
1.25 misho 185: #else
186: FD_ZERO(&r->root_fds[1]);
187: FD_ZERO(&r->root_fds[0]);
188: r->root_kq ^= r->root_kq;
189: #endif
1.1 misho 190:
191: return NULL;
192: }
193:
194: /*
195: * sched_hook_cancel() - Default CANCEL hook
1.5 misho 196: *
1.1 misho 197: * @task = current task
198: * @arg = unused
199: * return: <0 errors and 0 ok
200: */
201: void *
202: sched_hook_cancel(void *task, void *arg __unused)
203: {
1.28 ! misho 204: sched_task_t *t = task, *tmp, *tt;
! 205: sched_root_task_t *r = NULL;
! 206: int flg;
! 207: #if SUP_ENABLE == KQ_SUPPORT
1.1 misho 208: struct kevent chg[1];
1.2 misho 209: struct timespec timeout = { 0, 0 };
1.28 ! misho 210: #elif SUP_ENABLE == EP_SUPPORT
! 211: struct epoll_event ee = { .events = 0, .data.fd = 0 };
1.25 misho 212: #else
213: register int i;
214: #endif
1.11 misho 215: #ifdef AIO_SUPPORT
216: struct aiocb *acb;
217: #ifdef EVFILT_LIO
1.15 misho 218: register int i = 0;
1.11 misho 219: struct aiocb **acbs;
220: #endif /* EVFILT_LIO */
221: #endif /* AIO_SUPPORT */
1.1 misho 222:
1.6 misho 223: if (!t || !TASK_ROOT(t))
1.1 misho 224: return (void*) -1;
1.28 ! misho 225: else
! 226: r = TASK_ROOT(t);
1.1 misho 227:
1.4 misho 228: switch (TASK_TYPE(t)) {
1.1 misho 229: case taskREAD:
1.28 ! misho 230: /* check for multi subscribers */
! 231: flg = 0;
! 232: TAILQ_FOREACH_SAFE(tt, &r->root_read, task_node, tmp)
! 233: if (TASK_FD(tt) != TASK_FD(t))
! 234: continue;
! 235: else
! 236: flg++;
! 237: #if SUP_ENABLE == KQ_SUPPORT
1.2 misho 238: #ifdef __NetBSD__
1.28 ! misho 239: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, flg < 2 ? EV_DELETE : 0,
! 240: 0, 0, (intptr_t) TASK_FD(t));
1.2 misho 241: #else
1.28 ! misho 242: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, flg < 2 ? EV_DELETE : 0,
! 243: 0, 0, (void*) TASK_FD(t));
1.2 misho 244: #endif
1.28 ! misho 245: #elif SUP_ENABLE == EP_SUPPORT
! 246: ee.data.fd = TASK_FD(t);
! 247: if (FD_ISSET(TASK_FD(t), &r->root_fds[1]))
! 248: ee.events = EPOLLOUT;
! 249:
! 250: if (flg < 2)
! 251: FD_CLR(TASK_FD(t), &r->root_fds[0]);
! 252: else
! 253: ee.events |= (EPOLLIN | EPOLLPRI | EPOLLRDHUP);
! 254: #else
! 255: if (flg < 2) {
! 256: FD_CLR(TASK_FD(t), &r->root_fds[0]);
! 257:
! 258: /* optimize select */
! 259: for (i = r->root_kq - 1; i > 2; i--)
! 260: if (FD_ISSET(i, &r->root_fds[0]) || FD_ISSET(i, &r->root_fds[1]))
! 261: break;
! 262: if (i > 2)
! 263: r->root_kq = i + 1;
! 264: }
1.25 misho 265: #endif
1.1 misho 266: break;
267: case taskWRITE:
1.28 ! misho 268: /* check for multi subscribers */
! 269: flg = 0;
! 270: TAILQ_FOREACH_SAFE(tt, &r->root_write, task_node, tmp)
! 271: if (TASK_FD(tt) != TASK_FD(t))
! 272: continue;
! 273: else
! 274: flg++;
! 275: #if SUP_ENABLE == KQ_SUPPORT
1.2 misho 276: #ifdef __NetBSD__
1.28 ! misho 277: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, flg < 2 ? EV_DELETE : 0,
! 278: 0, 0, (intptr_t) TASK_FD(t));
1.2 misho 279: #else
1.28 ! misho 280: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, flg < 2 ? EV_DELETE : 0,
! 281: 0, 0, (void*) TASK_FD(t));
1.2 misho 282: #endif
1.28 ! misho 283: #elif SUP_ENABLE == EP_SUPPORT
! 284: ee.data.fd = TASK_FD(t);
! 285: if (FD_ISSET(TASK_FD(t), &r->root_fds[0]))
! 286: ee.events = EPOLLIN | EPOLLPRI | EPOLLRDHUP;
! 287:
! 288: if (flg < 2)
! 289: FD_CLR(TASK_FD(t), &r->root_fds[1]);
! 290: else
! 291: ee.events |= EPOLLOUT;
! 292: #else
! 293: if (flg < 2) {
! 294: FD_CLR(TASK_FD(t), &r->root_fds[1]);
! 295:
! 296: /* optimize select */
! 297: for (i = r->root_kq - 1; i > 2; i--)
! 298: if (FD_ISSET(i, &r->root_fds[0]) || FD_ISSET(i, &r->root_fds[1]))
! 299: break;
! 300: if (i > 2)
! 301: r->root_kq = i + 1;
! 302: }
1.25 misho 303: #endif
1.1 misho 304: break;
1.7 misho 305: case taskALARM:
1.28 ! misho 306: #if SUP_ENABLE == KQ_SUPPORT
! 307: /* check for multi subscribers */
! 308: flg = 0;
! 309: TAILQ_FOREACH_SAFE(tt, &r->root_alarm, task_node, tmp)
! 310: if (TASK_DATA(tt) != TASK_DATA(t))
! 311: continue;
! 312: else
! 313: flg++;
1.7 misho 314: #ifdef __NetBSD__
1.28 ! misho 315: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, flg < 2 ? EV_DELETE : 0,
1.7 misho 316: 0, 0, (intptr_t) TASK_DATA(t));
317: #else
1.28 ! misho 318: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, flg < 2 ? EV_DELETE : 0,
1.7 misho 319: 0, 0, (void*) TASK_DATA(t));
320: #endif
1.25 misho 321: #endif
1.8 misho 322: break;
323: case taskNODE:
1.28 ! misho 324: #if SUP_ENABLE == KQ_SUPPORT
! 325: /* check for multi subscribers */
! 326: flg = 0;
! 327: TAILQ_FOREACH_SAFE(tt, &r->root_node, task_node, tmp)
! 328: if (TASK_FD(tt) != TASK_FD(t))
! 329: continue;
! 330: else
! 331: flg++;
1.8 misho 332: #ifdef __NetBSD__
1.28 ! misho 333: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, flg < 2 ? EV_DELETE : 0,
! 334: 0, 0, (intptr_t) TASK_FD(t));
1.8 misho 335: #else
1.28 ! misho 336: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, flg < 2 ? EV_DELETE : 0,
! 337: 0, 0, (void*) TASK_FD(t));
1.8 misho 338: #endif
1.25 misho 339: #endif
1.8 misho 340: break;
341: case taskPROC:
1.28 ! misho 342: #if SUP_ENABLE == KQ_SUPPORT
! 343: /* check for multi subscribers */
! 344: flg = 0;
! 345: TAILQ_FOREACH_SAFE(tt, &r->root_proc, task_node, tmp)
! 346: if (TASK_VAL(tt) != TASK_VAL(t))
! 347: continue;
! 348: else
! 349: flg++;
1.8 misho 350: #ifdef __NetBSD__
1.28 ! misho 351: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, flg < 2 ? EV_DELETE : 0,
! 352: 0, 0, (intptr_t) TASK_VAL(t));
1.8 misho 353: #else
1.28 ! misho 354: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, flg < 2 ? EV_DELETE : 0,
! 355: 0, 0, (void*) TASK_VAL(t));
1.8 misho 356: #endif
1.25 misho 357: #endif
1.8 misho 358: break;
359: case taskSIGNAL:
1.28 ! misho 360: #if SUP_ENABLE == KQ_SUPPORT
! 361: /* check for multi subscribers */
! 362: flg = 0;
! 363: TAILQ_FOREACH_SAFE(tt, &r->root_signal, task_node, tmp)
! 364: if (TASK_VAL(tt) != TASK_VAL(t))
! 365: continue;
! 366: else
! 367: flg++;
1.8 misho 368: #ifdef __NetBSD__
1.28 ! misho 369: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, flg < 2 ? EV_DELETE : 0,
! 370: 0, 0, (intptr_t) TASK_VAL(t));
1.8 misho 371: #else
1.28 ! misho 372: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, flg < 2 ? EV_DELETE : 0,
! 373: 0, 0, (void*) TASK_VAL(t));
1.8 misho 374: #endif
1.18 misho 375: /* restore signal */
1.28 ! misho 376: if (flg < 2)
! 377: signal(TASK_VAL(t), SIG_DFL);
1.25 misho 378: #endif
1.8 misho 379: break;
1.11 misho 380: #ifdef AIO_SUPPORT
381: case taskAIO:
1.28 ! misho 382: #if SUP_ENABLE == KQ_SUPPORT
! 383: /* check for multi subscribers */
! 384: flg = 0;
! 385: TAILQ_FOREACH_SAFE(tt, &r->root_aio, task_node, tmp)
! 386: if (TASK_VAL(tt) != TASK_VAL(t))
! 387: continue;
! 388: else
! 389: flg++;
1.11 misho 390: #ifdef __NetBSD__
1.28 ! misho 391: EV_SET(&chg[0], TASK_VAL(t), EVFILT_AIO, flg < 2 ? EV_DELETE : 0,
! 392: 0, 0, (intptr_t) TASK_VAL(t));
1.11 misho 393: #else
1.28 ! misho 394: EV_SET(&chg[0], TASK_VAL(t), EVFILT_AIO, flg < 2 ? EV_DELETE : 0,
! 395: 0, 0, (void*) TASK_VAL(t));
1.11 misho 396: #endif
397: acb = (struct aiocb*) TASK_VAL(t);
398: if (acb) {
399: if (aio_cancel(acb->aio_fildes, acb) == AIO_CANCELED)
400: aio_return(acb);
401: free(acb);
402: TASK_VAL(t) = 0;
403: }
1.25 misho 404: #endif
1.11 misho 405: break;
406: #ifdef EVFILT_LIO
407: case taskLIO:
1.28 ! misho 408: #if SUP_ENABLE == KQ_SUPPORT
! 409: /* check for multi subscribers */
! 410: flg = 0;
! 411: TAILQ_FOREACH_SAFE(tt, &r->root_lio, task_node, tmp)
! 412: if (TASK_VAL(tt) != TASK_VAL(t))
! 413: continue;
! 414: else
! 415: flg++;
1.11 misho 416: #ifdef __NetBSD__
1.28 ! misho 417: EV_SET(&chg[0], TASK_VAL(t), EVFILT_LIO, flg < 2 ? EV_DELETE : 0,
! 418: 0, 0, (intptr_t) TASK_VAL(t));
1.11 misho 419: #else
1.28 ! misho 420: EV_SET(&chg[0], TASK_VAL(t), EVFILT_LIO, flg < 2 ? EV_DELETE : 0,
! 421: 0, 0, (void*) TASK_VAL(t));
1.11 misho 422: #endif
423: acbs = (struct aiocb**) TASK_VAL(t);
424: if (acbs) {
425: for (i = 0; i < TASK_DATLEN(t); i++) {
426: if (aio_cancel(acbs[i]->aio_fildes, acbs[i]) == AIO_CANCELED)
427: aio_return(acbs[i]);
428: free(acbs[i]);
429: }
430: free(acbs);
431: TASK_VAL(t) = 0;
432: }
1.25 misho 433: #endif
1.11 misho 434: break;
435: #endif /* EVFILT_LIO */
436: #endif /* AIO_SUPPORT */
1.8 misho 437: #ifdef EVFILT_USER
438: case taskUSER:
1.28 ! misho 439: #if SUP_ENABLE == KQ_SUPPORT
! 440: /* check for multi subscribers */
! 441: flg = 0;
! 442: TAILQ_FOREACH_SAFE(tt, &r->root_user, task_node, tmp)
! 443: if (TASK_VAL(tt) != TASK_VAL(t))
! 444: continue;
! 445: else
! 446: flg++;
1.8 misho 447: #ifdef __NetBSD__
1.28 ! misho 448: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, flg < 2 ? EV_DELETE : 0,
! 449: 0, 0, (intptr_t) TASK_VAL(t));
1.8 misho 450: #else
1.28 ! misho 451: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, flg < 2 ? EV_DELETE : 0,
! 452: 0, 0, (void*) TASK_VAL(t));
1.8 misho 453: #endif
1.25 misho 454: #endif
1.10 misho 455: break;
1.19 misho 456: #endif /* EVFILT_USER */
1.14 misho 457: case taskTHREAD:
458: #ifdef HAVE_LIBPTHREAD
1.28 ! misho 459: if (TASK_VAL(t)) {
! 460: pthread_cancel((pthread_t) TASK_VAL(t));
! 461: pthread_join((pthread_t) TASK_VAL(t), NULL);
! 462: if (TASK_VAL(t)) {
! 463: transit_task2unuse(t, &(TASK_ROOT(t))->root_thread);
! 464: TASK_VAL(t) = 0;
! 465: }
! 466: }
1.14 misho 467: #endif
1.19 misho 468: return NULL;
1.27 misho 469: #if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME) && defined(HAVE_TIMER_DELETE)
1.19 misho 470: case taskRTC:
471: timer_delete((timer_t) TASK_FLAG(t));
1.28 ! misho 472: #if SUP_ENABLE == KQ_SUPPORT
1.19 misho 473: schedCancel((sched_task_t*) TASK_RET(t));
1.28 ! misho 474: #else
! 475: /* check for multi subscribers */
! 476: flg = 0;
! 477: TAILQ_FOREACH_SAFE(tt, &r->root_rtc, task_node, tmp)
! 478: if (TASK_DATA(tt) != TASK_DATA(t))
! 479: continue;
! 480: else
! 481: flg++;
! 482:
! 483: /* restore signal */
! 484: if (flg < 2)
! 485: signal((intptr_t) TASK_DATA(t) + SIGRTMIN, SIG_DFL);
! 486: #endif
1.19 misho 487: return NULL;
488: #endif /* HAVE_TIMER_CREATE */
1.1 misho 489: default:
1.8 misho 490: return NULL;
1.1 misho 491: }
492:
1.28 ! misho 493: #if SUP_ENABLE == KQ_SUPPORT
! 494: kevent(r->root_kq, chg, 1, NULL, 0, &timeout);
! 495: #elif SUP_ENABLE == EP_SUPPORT
! 496: epoll_ctl(r->root_kq, ee.events ? EPOLL_CTL_MOD : EPOLL_CTL_DEL, ee.data.fd, &ee);
1.25 misho 497: #endif
1.1 misho 498: return NULL;
499: }
500:
1.14 misho 501: #ifdef HAVE_LIBPTHREAD
502: /*
503: * sched_hook_thread() - Default THREAD hook
504: *
505: * @task = current task
506: * @arg = pthread attributes
507: * return: <0 errors and 0 ok
508: */
509: void *
510: sched_hook_thread(void *task, void *arg)
511: {
512: sched_task_t *t = task;
513: pthread_t tid;
1.15 misho 514: sigset_t s, o;
1.14 misho 515:
516: if (!t || !TASK_ROOT(t))
517: return (void*) -1;
518:
1.15 misho 519: sigfillset(&s);
520: pthread_sigmask(SIG_BLOCK, &s, &o);
1.28 ! misho 521: errno = pthread_create(&tid, (pthread_attr_t*) arg,
! 522: (void *(*)(void*)) _sched_threadWrapper, t);
! 523: pthread_sigmask(SIG_SETMASK, &o, NULL);
! 524:
! 525: if (errno) {
1.14 misho 526: LOGERR;
527: return (void*) -1;
1.15 misho 528: } else
529: TASK_VAL(t) = (u_long) tid;
1.14 misho 530:
531: if (!TASK_ISLOCKED(t))
532: TASK_LOCK(t);
533:
534: return NULL;
535: }
536: #endif
537:
1.1 misho 538: /*
539: * sched_hook_read() - Default READ hook
1.5 misho 540: *
1.1 misho 541: * @task = current task
542: * @arg = unused
543: * return: <0 errors and 0 ok
544: */
545: void *
546: sched_hook_read(void *task, void *arg __unused)
547: {
548: sched_task_t *t = task;
1.28 ! misho 549: sched_root_task_t *r = NULL;
! 550: #if SUP_ENABLE == KQ_SUPPORT
1.1 misho 551: struct kevent chg[1];
1.2 misho 552: struct timespec timeout = { 0, 0 };
1.28 ! misho 553: #elif SUP_ENABLE == EP_SUPPORT
! 554: struct epoll_event ee = { .events = EPOLLIN | EPOLLPRI | EPOLLRDHUP, .data.fd = 0 };
! 555: int flg = 0;
1.25 misho 556: #endif
1.1 misho 557:
1.6 misho 558: if (!t || !TASK_ROOT(t))
1.1 misho 559: return (void*) -1;
1.28 ! misho 560: else
! 561: r = TASK_ROOT(t);
1.1 misho 562:
1.28 ! misho 563: #if SUP_ENABLE == KQ_SUPPORT
1.2 misho 564: #ifdef __NetBSD__
1.8 misho 565: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, (intptr_t) TASK_FD(t));
1.2 misho 566: #else
1.8 misho 567: EV_SET(&chg[0], TASK_FD(t), EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, (void*) TASK_FD(t));
1.2 misho 568: #endif
1.28 ! misho 569: if (kevent(r->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
! 570: if (r->root_hooks.hook_exec.exception)
! 571: r->root_hooks.hook_exec.exception(r, NULL);
1.3 misho 572: else
573: LOGERR;
1.1 misho 574: return (void*) -1;
575: }
1.28 ! misho 576: #elif SUP_ENABLE == EP_SUPPORT
! 577: if (FD_ISSET(TASK_FD(t), &r->root_fds[0]))
! 578: flg |= 1;
! 579: if (FD_ISSET(TASK_FD(t), &r->root_fds[1])) {
! 580: flg |= 2;
! 581: ee.events |= EPOLLOUT;
! 582: }
! 583:
! 584: ee.data.fd = TASK_FD(t);
! 585: if (epoll_ctl(r->root_kq, flg ? EPOLL_CTL_MOD : EPOLL_CTL_ADD, TASK_FD(t), &ee) == -1) {
! 586: if (r->root_hooks.hook_exec.exception)
! 587: r->root_hooks.hook_exec.exception(r, NULL);
! 588: else
! 589: LOGERR;
! 590: return (void*) -1;
! 591: } else
! 592: FD_SET(TASK_FD(t), &r->root_fds[0]);
1.25 misho 593: #else
594: FD_SET(TASK_FD(t), &r->root_fds[0]);
595: if (TASK_FD(t) >= r->root_kq)
596: r->root_kq = TASK_FD(t) + 1;
597: #endif
1.1 misho 598:
599: return NULL;
600: }
601:
602: /*
603: * sched_hook_write() - Default WRITE hook
1.5 misho 604: *
1.1 misho 605: * @task = current task
606: * @arg = unused
607: * return: <0 errors and 0 ok
608: */
609: void *
610: sched_hook_write(void *task, void *arg __unused)
611: {
612: sched_task_t *t = task;
1.28 ! misho 613: sched_root_task_t *r = NULL;
! 614: #if SUP_ENABLE == KQ_SUPPORT
1.1 misho 615: struct kevent chg[1];
1.2 misho 616: struct timespec timeout = { 0, 0 };
1.28 ! misho 617: #elif SUP_ENABLE == EP_SUPPORT
! 618: struct epoll_event ee = { .events = EPOLLOUT, .data.fd = 0 };
! 619: int flg = 0;
1.25 misho 620: #endif
1.1 misho 621:
1.6 misho 622: if (!t || !TASK_ROOT(t))
1.1 misho 623: return (void*) -1;
1.28 ! misho 624: else
! 625: r = TASK_ROOT(t);
1.1 misho 626:
1.28 ! misho 627: #if SUP_ENABLE == KQ_SUPPORT
1.2 misho 628: #ifdef __NetBSD__
1.8 misho 629: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, (intptr_t) TASK_FD(t));
1.2 misho 630: #else
1.8 misho 631: EV_SET(&chg[0], TASK_FD(t), EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, (void*) TASK_FD(t));
1.2 misho 632: #endif
1.28 ! misho 633: if (kevent(r->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
! 634: if (r->root_hooks.hook_exec.exception)
! 635: r->root_hooks.hook_exec.exception(r, NULL);
1.3 misho 636: else
637: LOGERR;
1.1 misho 638: return (void*) -1;
639: }
1.28 ! misho 640: #elif SUP_ENABLE == EP_SUPPORT
! 641: if (FD_ISSET(TASK_FD(t), &r->root_fds[0])) {
! 642: flg |= 1;
! 643: ee.events |= EPOLLIN | EPOLLPRI | EPOLLRDHUP;
! 644: }
! 645: if (FD_ISSET(TASK_FD(t), &r->root_fds[1]))
! 646: flg |= 2;
! 647:
! 648: ee.data.fd = TASK_FD(t);
! 649: if (epoll_ctl(r->root_kq, flg ? EPOLL_CTL_MOD : EPOLL_CTL_ADD, TASK_FD(t), &ee) == -1) {
! 650: if (r->root_hooks.hook_exec.exception)
! 651: r->root_hooks.hook_exec.exception(r, NULL);
! 652: else
! 653: LOGERR;
! 654: return (void*) -1;
! 655: } else
! 656: FD_SET(TASK_FD(t), &r->root_fds[1]);
1.25 misho 657: #else
658: FD_SET(TASK_FD(t), &r->root_fds[1]);
659: if (TASK_FD(t) >= r->root_kq)
660: r->root_kq = TASK_FD(t) + 1;
661: #endif
1.1 misho 662:
663: return NULL;
664: }
665:
666: /*
1.7 misho 667: * sched_hook_alarm() - Default ALARM hook
668: *
669: * @task = current task
670: * @arg = unused
671: * return: <0 errors and 0 ok
672: */
673: void *
674: sched_hook_alarm(void *task, void *arg __unused)
675: {
1.28 ! misho 676: #if SUP_ENABLE == KQ_SUPPORT
1.7 misho 677: sched_task_t *t = task;
678: struct kevent chg[1];
679: struct timespec timeout = { 0, 0 };
680:
681: if (!t || !TASK_ROOT(t))
682: return (void*) -1;
683:
684: #ifdef __NetBSD__
1.19 misho 685: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, EV_ADD | EV_CLEAR, 0,
1.7 misho 686: t->task_val.ts.tv_sec * 1000 + t->task_val.ts.tv_nsec / 1000000,
687: (intptr_t) TASK_DATA(t));
688: #else
1.19 misho 689: EV_SET(&chg[0], (uintptr_t) TASK_DATA(t), EVFILT_TIMER, EV_ADD | EV_CLEAR, 0,
1.7 misho 690: t->task_val.ts.tv_sec * 1000 + t->task_val.ts.tv_nsec / 1000000,
691: (void*) TASK_DATA(t));
692: #endif
693: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
694: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
695: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
696: else
697: LOGERR;
698: return (void*) -1;
699: }
700:
1.25 misho 701: #endif
1.7 misho 702: return NULL;
703: }
704:
705: /*
1.8 misho 706: * sched_hook_node() - Default NODE hook
707: *
708: * @task = current task
709: * @arg = unused
710: * return: <0 errors and 0 ok
711: */
712: void *
713: sched_hook_node(void *task, void *arg __unused)
714: {
1.28 ! misho 715: #if SUP_ENABLE == KQ_SUPPORT
1.8 misho 716: sched_task_t *t = task;
717: struct kevent chg[1];
718: struct timespec timeout = { 0, 0 };
719:
720: if (!t || !TASK_ROOT(t))
721: return (void*) -1;
722:
723: #ifdef __NetBSD__
724: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, EV_ADD | EV_CLEAR,
725: NOTE_DELETE | NOTE_WRITE | NOTE_EXTEND | NOTE_ATTRIB |
726: NOTE_LINK | NOTE_RENAME | NOTE_REVOKE, 0, (intptr_t) TASK_FD(t));
727: #else
728: EV_SET(&chg[0], TASK_FD(t), EVFILT_VNODE, EV_ADD | EV_CLEAR,
729: NOTE_DELETE | NOTE_WRITE | NOTE_EXTEND | NOTE_ATTRIB |
730: NOTE_LINK | NOTE_RENAME | NOTE_REVOKE, 0, (void*) TASK_FD(t));
731: #endif
732: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
733: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
734: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
735: else
736: LOGERR;
737: return (void*) -1;
738: }
739:
1.25 misho 740: #endif
1.8 misho 741: return NULL;
742: }
743:
744: /*
745: * sched_hook_proc() - Default PROC hook
746: *
747: * @task = current task
748: * @arg = unused
749: * return: <0 errors and 0 ok
750: */
751: void *
752: sched_hook_proc(void *task, void *arg __unused)
753: {
1.28 ! misho 754: #if SUP_ENABLE == KQ_SUPPORT
1.8 misho 755: sched_task_t *t = task;
756: struct kevent chg[1];
757: struct timespec timeout = { 0, 0 };
758:
759: if (!t || !TASK_ROOT(t))
760: return (void*) -1;
761:
762: #ifdef __NetBSD__
763: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, EV_ADD | EV_CLEAR,
764: NOTE_EXIT | NOTE_FORK | NOTE_EXEC | NOTE_TRACK, 0, (intptr_t) TASK_VAL(t));
765: #else
766: EV_SET(&chg[0], TASK_VAL(t), EVFILT_PROC, EV_ADD | EV_CLEAR,
767: NOTE_EXIT | NOTE_FORK | NOTE_EXEC | NOTE_TRACK, 0, (void*) TASK_VAL(t));
768: #endif
769: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
770: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
771: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
772: else
773: LOGERR;
774: return (void*) -1;
775: }
776:
1.25 misho 777: #endif
1.8 misho 778: return NULL;
779: }
780:
781: /*
782: * sched_hook_signal() - Default SIGNAL hook
783: *
784: * @task = current task
785: * @arg = unused
786: * return: <0 errors and 0 ok
787: */
788: void *
789: sched_hook_signal(void *task, void *arg __unused)
790: {
1.28 ! misho 791: #if SUP_ENABLE == KQ_SUPPORT
1.8 misho 792: sched_task_t *t = task;
793: struct kevent chg[1];
794: struct timespec timeout = { 0, 0 };
795:
796: if (!t || !TASK_ROOT(t))
797: return (void*) -1;
798:
1.18 misho 799: /* ignore signal */
800: signal(TASK_VAL(t), SIG_IGN);
801:
1.8 misho 802: #ifdef __NetBSD__
1.19 misho 803: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, EV_ADD | EV_CLEAR, 0, 0, (intptr_t) TASK_VAL(t));
1.8 misho 804: #else
1.19 misho 805: EV_SET(&chg[0], TASK_VAL(t), EVFILT_SIGNAL, EV_ADD | EV_CLEAR, 0, 0, (void*) TASK_VAL(t));
1.8 misho 806: #endif
807: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
808: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
809: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
810: else
811: LOGERR;
812: return (void*) -1;
813: }
1.25 misho 814: #endif
1.8 misho 815: return NULL;
816: }
817:
818: /*
819: * sched_hook_user() - Default USER hook
820: *
821: * @task = current task
822: * @arg = unused
823: * return: <0 errors and 0 ok
824: */
825: #ifdef EVFILT_USER
826: void *
827: sched_hook_user(void *task, void *arg __unused)
828: {
1.28 ! misho 829: #if SUP_ENABLE == KQ_SUPPORT
1.8 misho 830: sched_task_t *t = task;
831: struct kevent chg[1];
832: struct timespec timeout = { 0, 0 };
833:
834: if (!t || !TASK_ROOT(t))
835: return (void*) -1;
836:
837: #ifdef __NetBSD__
838: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, EV_ADD | EV_CLEAR, TASK_DATLEN(t),
839: 0, (intptr_t) TASK_VAL(t));
840: #else
841: EV_SET(&chg[0], TASK_VAL(t), EVFILT_USER, EV_ADD | EV_CLEAR, TASK_DATLEN(t),
842: 0, (void*) TASK_VAL(t));
843: #endif
844: if (kevent(TASK_ROOT(t)->root_kq, chg, 1, NULL, 0, &timeout) == -1) {
845: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
846: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
847: else
848: LOGERR;
849: return (void*) -1;
850: }
851:
1.25 misho 852: #endif
1.8 misho 853: return NULL;
854: }
855: #endif
856:
1.28 ! misho 857: #if SUP_ENABLE == KQ_SUPPORT
! 858: static inline void
! 859: fetch_hook_kevent_proceed(int en, struct kevent *res, sched_root_task_t *r)
1.1 misho 860: {
1.28 ! misho 861: struct kevent evt[1];
! 862: register int i;
1.6 misho 863: sched_task_t *task, *tmp;
1.28 ! misho 864: struct timespec now = { 0, 0 };
1.11 misho 865: #ifdef AIO_SUPPORT
866: int len, fd;
867: struct aiocb *acb;
868: #ifdef EVFILT_LIO
869: int l;
870: register int j;
871: off_t off;
872: struct aiocb **acbs;
873: struct iovec *iv;
874: #endif /* EVFILT_LIO */
875: #endif /* AIO_SUPPORT */
1.1 misho 876:
877: for (i = 0; i < en; i++) {
878: memcpy(evt, &res[i], sizeof evt);
879: evt->flags = EV_DELETE;
880: /* Put read/write task to ready queue */
881: switch (res[i].filter) {
882: case EVFILT_READ:
1.6 misho 883: TAILQ_FOREACH_SAFE(task, &r->root_read, task_node, tmp) {
1.3 misho 884: if (TASK_FD(task) != ((intptr_t) res[i].udata))
1.1 misho 885: continue;
1.14 misho 886: else {
887: TASK_RET(task) = res[i].data;
1.19 misho 888: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 889: }
1.1 misho 890: /* remove read handle */
1.28 ! misho 891: remove_task_from(task, &r->root_read);
! 892:
1.3 misho 893: if (r->root_hooks.hook_exec.exception && res[i].flags & EV_EOF) {
894: if (r->root_hooks.hook_exec.exception(r, (void*) EV_EOF)) {
895: task->task_type = taskUNUSE;
1.28 ! misho 896: insert_task_to(task, &r->root_unuse);
1.3 misho 897: } else {
898: task->task_type = taskREADY;
1.28 ! misho 899: insert_task_to(task, &r->root_ready);
1.3 misho 900: }
901: } else {
1.2 misho 902: task->task_type = taskREADY;
1.28 ! misho 903: insert_task_to(task, &r->root_ready);
1.3 misho 904: }
1.1 misho 905: }
906: break;
907: case EVFILT_WRITE:
1.6 misho 908: TAILQ_FOREACH_SAFE(task, &r->root_write, task_node, tmp) {
1.3 misho 909: if (TASK_FD(task) != ((intptr_t) res[i].udata))
1.1 misho 910: continue;
1.14 misho 911: else {
912: TASK_RET(task) = res[i].data;
1.19 misho 913: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 914: }
1.1 misho 915: /* remove write handle */
1.28 ! misho 916: remove_task_from(task, &r->root_write);
! 917:
! 918: if (r->root_hooks.hook_exec.exception && res[i].flags & EV_EOF) {
! 919: if (r->root_hooks.hook_exec.exception(r, (void*) EV_EOF)) {
1.3 misho 920: task->task_type = taskUNUSE;
1.28 ! misho 921: insert_task_to(task, &r->root_unuse);
1.3 misho 922: } else {
923: task->task_type = taskREADY;
1.28 ! misho 924: insert_task_to(task, &r->root_ready);
1.3 misho 925: }
926: } else {
1.2 misho 927: task->task_type = taskREADY;
1.28 ! misho 928: insert_task_to(task, &r->root_ready);
1.3 misho 929: }
1.1 misho 930: }
931: break;
1.7 misho 932: case EVFILT_TIMER:
933: TAILQ_FOREACH_SAFE(task, &r->root_alarm, task_node, tmp) {
934: if ((uintptr_t) TASK_DATA(task) != ((uintptr_t) res[i].udata))
935: continue;
1.14 misho 936: else {
937: TASK_RET(task) = res[i].data;
1.19 misho 938: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 939: }
1.7 misho 940: /* remove alarm handle */
1.28 ! misho 941: transit_task2ready(task, &r->root_alarm);
1.7 misho 942: }
943: break;
1.8 misho 944: case EVFILT_VNODE:
945: TAILQ_FOREACH_SAFE(task, &r->root_node, task_node, tmp) {
946: if (TASK_FD(task) != ((intptr_t) res[i].udata))
947: continue;
948: else {
1.14 misho 949: TASK_RET(task) = res[i].data;
1.19 misho 950: TASK_FLAG(task) = (u_long) res[i].fflags;
1.8 misho 951: }
952: /* remove node handle */
1.28 ! misho 953: transit_task2ready(task, &r->root_node);
1.8 misho 954: }
955: break;
956: case EVFILT_PROC:
957: TAILQ_FOREACH_SAFE(task, &r->root_proc, task_node, tmp) {
958: if (TASK_VAL(task) != ((uintptr_t) res[i].udata))
959: continue;
960: else {
1.14 misho 961: TASK_RET(task) = res[i].data;
1.19 misho 962: TASK_FLAG(task) = (u_long) res[i].fflags;
1.8 misho 963: }
964: /* remove proc handle */
1.28 ! misho 965: transit_task2ready(task, &r->root_proc);
1.8 misho 966: }
967: break;
968: case EVFILT_SIGNAL:
969: TAILQ_FOREACH_SAFE(task, &r->root_signal, task_node, tmp) {
970: if (TASK_VAL(task) != ((uintptr_t) res[i].udata))
971: continue;
1.14 misho 972: else {
973: TASK_RET(task) = res[i].data;
1.19 misho 974: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 975: }
1.8 misho 976: /* remove signal handle */
1.28 ! misho 977: transit_task2ready(task, &r->root_signal);
1.8 misho 978: }
979: break;
1.11 misho 980: #ifdef AIO_SUPPORT
981: case EVFILT_AIO:
982: TAILQ_FOREACH_SAFE(task, &r->root_aio, task_node, tmp) {
983: acb = (struct aiocb*) TASK_VAL(task);
984: if (acb != ((struct aiocb*) res[i].udata))
985: continue;
1.14 misho 986: else {
987: TASK_RET(task) = res[i].data;
1.19 misho 988: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 989: }
1.11 misho 990: /* remove user handle */
1.28 ! misho 991: transit_task2ready(task, &r->root_aio);
! 992:
1.11 misho 993: fd = acb->aio_fildes;
994: if ((len = aio_return(acb)) != -1) {
995: if (lseek(fd, acb->aio_offset + len, SEEK_CUR) == -1)
996: LOGERR;
997: } else
998: LOGERR;
999: free(acb);
1000: TASK_DATLEN(task) = (u_long) len;
1001: TASK_FD(task) = fd;
1002: }
1003: break;
1004: #ifdef EVFILT_LIO
1005: case EVFILT_LIO:
1006: TAILQ_FOREACH_SAFE(task, &r->root_lio, task_node, tmp) {
1007: acbs = (struct aiocb**) TASK_VAL(task);
1008: if (acbs != ((struct aiocb**) res[i].udata))
1009: continue;
1.14 misho 1010: else {
1011: TASK_RET(task) = res[i].data;
1.19 misho 1012: TASK_FLAG(task) = (u_long) res[i].fflags;
1.14 misho 1013: }
1.11 misho 1014: /* remove user handle */
1.28 ! misho 1015: transit_task2ready(task, &r->root_lio);
! 1016:
1.11 misho 1017: iv = (struct iovec*) TASK_DATA(task);
1018: fd = acbs[0]->aio_fildes;
1019: off = acbs[0]->aio_offset;
1020: for (j = len = 0; i < TASK_DATLEN(task); len += l, i++) {
1021: if ((iv[i].iov_len = aio_return(acbs[i])) == -1)
1022: l = 0;
1023: else
1024: l = iv[i].iov_len;
1025: free(acbs[i]);
1026: }
1027: free(acbs);
1028: TASK_DATLEN(task) = (u_long) len;
1029: TASK_FD(task) = fd;
1030:
1031: if (lseek(fd, off + len, SEEK_CUR) == -1)
1032: LOGERR;
1033: }
1034: break;
1035: #endif /* EVFILT_LIO */
1036: #endif /* AIO_SUPPORT */
1.8 misho 1037: #ifdef EVFILT_USER
1038: case EVFILT_USER:
1039: TAILQ_FOREACH_SAFE(task, &r->root_user, task_node, tmp) {
1040: if (TASK_VAL(task) != ((uintptr_t) res[i].udata))
1041: continue;
1042: else {
1.14 misho 1043: TASK_RET(task) = res[i].data;
1.19 misho 1044: TASK_FLAG(task) = (u_long) res[i].fflags;
1.8 misho 1045: }
1046: /* remove user handle */
1.28 ! misho 1047: transit_task2ready(task, &r->root_user);
1.8 misho 1048: }
1049: break;
1.11 misho 1050: #endif /* EVFILT_USER */
1.1 misho 1051: }
1.28 ! misho 1052:
1.4 misho 1053: if (kevent(r->root_kq, evt, 1, NULL, 0, &now) == -1) {
1.28 ! misho 1054: if (r->root_hooks.hook_exec.exception)
! 1055: r->root_hooks.hook_exec.exception(r, NULL);
! 1056: else
! 1057: LOGERR;
! 1058: }
! 1059: }
! 1060: }
! 1061: #endif
! 1062:
! 1063: #if SUP_ENABLE == EP_SUPPORT
! 1064: static inline void
! 1065: fetch_hook_epoll_proceed(int en, struct epoll_event *res, sched_root_task_t *r)
! 1066: {
! 1067: register int i, flg;
! 1068: int ops = EPOLL_CTL_DEL;
! 1069: sched_task_t *task, *tmp;
! 1070: struct epoll_event evt[1];
! 1071:
! 1072: for (i = 0; i < en; i++) {
! 1073: memcpy(evt, &res[i], sizeof evt);
! 1074:
! 1075: if (evt->events & (EPOLLIN | EPOLLPRI | EPOLLET)) {
! 1076: flg = 0;
! 1077: TAILQ_FOREACH_SAFE(task, &r->root_read, task_node, tmp) {
! 1078: if (TASK_FD(task) != evt->data.fd)
! 1079: continue;
! 1080: else {
! 1081: flg++;
! 1082: FD_CLR(TASK_FD(task), &r->root_fds[0]);
! 1083: TASK_FLAG(task) = ioctl(TASK_FD(task), FIONREAD, &TASK_RET(task));
! 1084:
! 1085: evt->events &= ~(EPOLLIN | EPOLLPRI | EPOLLET | EPOLLRDHUP);
! 1086: if (FD_ISSET(TASK_FD(task), &r->root_fds[1])) {
! 1087: ops = EPOLL_CTL_MOD;
! 1088: evt->events |= EPOLLOUT;
! 1089: }
! 1090: }
! 1091: /* remove read handle */
! 1092: remove_task_from(task, &r->root_read);
! 1093:
! 1094: if (r->root_hooks.hook_exec.exception && evt->events & (EPOLLRDHUP | EPOLLERR | EPOLLHUP)) {
! 1095: if (r->root_hooks.hook_exec.exception(r, (void*) (intptr_t)
! 1096: (evt->events & EPOLLERR ? EV_ERROR | EV_EOF : EV_EOF))) {
! 1097: task->task_type = taskUNUSE;
! 1098: insert_task_to(task, &r->root_unuse);
! 1099: } else {
! 1100: task->task_type = taskREADY;
! 1101: insert_task_to(task, &r->root_ready);
! 1102: }
! 1103: } else {
! 1104: task->task_type = taskREADY;
! 1105: insert_task_to(task, &r->root_ready);
! 1106: }
! 1107: }
! 1108: if (flg > 1)
! 1109: ops = EPOLL_CTL_MOD;
! 1110: }
! 1111:
! 1112: if (evt->events & EPOLLOUT) {
! 1113: flg = 0;
! 1114: TAILQ_FOREACH_SAFE(task, &r->root_write, task_node, tmp) {
! 1115: if (TASK_FD(task) != evt->data.fd)
! 1116: continue;
! 1117: else {
! 1118: flg++;
! 1119: FD_CLR(TASK_FD(task), &r->root_fds[1]);
! 1120: TASK_FLAG(task) = ioctl(TASK_FD(task),
! 1121: FIONWRITE, &TASK_RET(task));
! 1122:
! 1123: evt->events &= ~EPOLLOUT;
! 1124: if (FD_ISSET(TASK_FD(task), &r->root_fds[0])) {
! 1125: ops = EPOLL_CTL_MOD;
! 1126: evt->events |= EPOLLIN | EPOLLPRI | EPOLLRDHUP;
! 1127: }
! 1128: }
! 1129: /* remove write handle */
! 1130: remove_task_from(task, &r->root_write);
! 1131:
! 1132: if (r->root_hooks.hook_exec.exception && evt->events & (EPOLLERR | EPOLLHUP)) {
! 1133: if (r->root_hooks.hook_exec.exception(r, (void*) (intptr_t)
! 1134: (evt->events & EPOLLERR ? EV_ERROR | EV_EOF : EV_EOF))) {
! 1135: task->task_type = taskUNUSE;
! 1136: insert_task_to(task, &r->root_unuse);
! 1137: } else {
! 1138: task->task_type = taskREADY;
! 1139: insert_task_to(task, &r->root_ready);
! 1140: }
! 1141: } else {
! 1142: task->task_type = taskREADY;
! 1143: insert_task_to(task, &r->root_ready);
! 1144: }
! 1145: }
! 1146: if (flg > 1)
! 1147: ops = EPOLL_CTL_MOD;
! 1148: }
! 1149:
! 1150: if (epoll_ctl(r->root_kq, ops, evt->data.fd, evt) == -1) {
1.3 misho 1151: if (r->root_hooks.hook_exec.exception) {
1.28 ! misho 1152: r->root_hooks.hook_exec.exception(r, NULL);
1.3 misho 1153: } else
1154: LOGERR;
1155: }
1.25 misho 1156: }
1.28 ! misho 1157: }
! 1158: #endif
! 1159:
! 1160: #if SUP_ENABLE == NO_SUPPORT
! 1161: static inline void
! 1162: fetch_hook_select_proceed(int en, fd_set rfd, fd_set wfd, fd_set xfd, sched_root_task_t *r)
! 1163: {
! 1164: register int i, flg;
! 1165: sched_task_t *task, *tmp;
! 1166:
! 1167: /* skip select check if return value from select is zero */
! 1168: if (!en)
! 1169: return;
! 1170:
1.25 misho 1171: for (i = 0; i < r->root_kq; i++) {
1172: if (FD_ISSET(i, &rfd) || FD_ISSET(i, &xfd)) {
1173: flg = 0;
1174: TAILQ_FOREACH_SAFE(task, &r->root_read, task_node, tmp) {
1175: if (TASK_FD(task) != i)
1176: continue;
1177: else {
1178: flg++;
1.26 misho 1179: TASK_FLAG(task) = ioctl(TASK_FD(task),
1180: FIONREAD, &TASK_RET(task));
1.25 misho 1181: }
1182: /* remove read handle */
1.28 ! misho 1183: remove_task_from(task, &r->root_read);
! 1184:
1.25 misho 1185: if (r->root_hooks.hook_exec.exception) {
1186: if (r->root_hooks.hook_exec.exception(r, NULL)) {
1187: task->task_type = taskUNUSE;
1.28 ! misho 1188: insert_task_to(task, &r->root_unuse);
1.25 misho 1189: } else {
1190: task->task_type = taskREADY;
1.28 ! misho 1191: insert_task_to(task, &r->root_ready);
1.25 misho 1192: }
1193: } else {
1194: task->task_type = taskREADY;
1.28 ! misho 1195: insert_task_to(task, &r->root_ready);
1.25 misho 1196: }
1197: }
1.28 ! misho 1198: /* remove resouce */
! 1199: if (flg)
1.25 misho 1200: FD_CLR(i, &r->root_fds[0]);
1201: }
1202:
1203: if (FD_ISSET(i, &wfd)) {
1204: flg = 0;
1205: TAILQ_FOREACH_SAFE(task, &r->root_write, task_node, tmp) {
1206: if (TASK_FD(task) != i)
1207: continue;
1208: else {
1209: flg++;
1.26 misho 1210: TASK_FLAG(task) = ioctl(TASK_FD(task),
1211: FIONWRITE, &TASK_RET(task));
1.25 misho 1212: }
1213: /* remove write handle */
1.28 ! misho 1214: remove_task_from(task, &r->root_write);
! 1215:
1.25 misho 1216: if (r->root_hooks.hook_exec.exception) {
1217: if (r->root_hooks.hook_exec.exception(r, NULL)) {
1218: task->task_type = taskUNUSE;
1.28 ! misho 1219: insert_task_to(task, &r->root_unuse);
1.25 misho 1220: } else {
1221: task->task_type = taskREADY;
1.28 ! misho 1222: insert_task_to(task, &r->root_ready);
1.25 misho 1223: }
1224: } else {
1225: task->task_type = taskREADY;
1.28 ! misho 1226: insert_task_to(task, &r->root_ready);
1.25 misho 1227: }
1228: }
1.28 ! misho 1229: /* remove resouce */
! 1230: if (flg)
1.25 misho 1231: FD_CLR(i, &r->root_fds[1]);
1232: }
1233: }
1234:
1235: /* optimize select */
1236: for (i = r->root_kq - 1; i > 2; i--)
1237: if (FD_ISSET(i, &r->root_fds[0]) || FD_ISSET(i, &r->root_fds[1]))
1238: break;
1239: if (i > 2)
1240: r->root_kq = i + 1;
1.28 ! misho 1241: }
! 1242: #endif
! 1243:
! 1244: /*
! 1245: * sched_hook_fetch() - Default FETCH hook
! 1246: *
! 1247: * @root = root task
! 1248: * @arg = unused
! 1249: * return: NULL error or !=NULL fetched task
! 1250: */
! 1251: void *
! 1252: sched_hook_fetch(void *root, void *arg __unused)
! 1253: {
! 1254: sched_root_task_t *r = root;
! 1255: sched_task_t *task, *tmp;
! 1256: struct timespec now, m, mtmp;
! 1257: #if SUP_ENABLE == KQ_SUPPORT
! 1258: struct kevent res[KQ_EVENTS];
! 1259: struct timespec *timeout;
! 1260: #elif SUP_ENABLE == EP_SUPPORT
! 1261: struct epoll_event res[KQ_EVENTS];
! 1262: u_long timeout = 0;
! 1263: #else
! 1264: struct timeval *timeout, tv;
! 1265: fd_set rfd, wfd, xfd;
! 1266: #endif
! 1267: int en;
! 1268:
! 1269: if (!r)
! 1270: return NULL;
! 1271:
! 1272: /* get new task by queue priority */
! 1273: while ((task = TAILQ_FIRST(&r->root_event))) {
! 1274: transit_task2unuse(task, &r->root_event);
! 1275: return task;
! 1276: }
! 1277: while ((task = TAILQ_FIRST(&r->root_ready))) {
! 1278: transit_task2unuse(task, &r->root_ready);
! 1279: return task;
! 1280: }
! 1281:
! 1282: #ifdef TIMER_WITHOUT_SORT
! 1283: clock_gettime(CLOCK_MONOTONIC, &now);
! 1284:
! 1285: sched_timespecclear(&r->root_wait);
! 1286: TAILQ_FOREACH(task, &r->root_timer, task_node) {
! 1287: if (!sched_timespecisset(&r->root_wait))
! 1288: r->root_wait = TASK_TS(task);
! 1289: else if (sched_timespeccmp(&TASK_TS(task), &r->root_wait, -) < 0)
! 1290: r->root_wait = TASK_TS(task);
! 1291: }
! 1292:
! 1293: if (TAILQ_FIRST(&r->root_timer)) {
! 1294: m = r->root_wait;
! 1295: sched_timespecsub(&m, &now, &mtmp);
! 1296: r->root_wait = mtmp;
! 1297: } else {
! 1298: /* set wait INFTIM */
! 1299: sched_timespecinf(&r->root_wait);
! 1300: }
! 1301: #else /* ! TIMER_WITHOUT_SORT */
! 1302: if (!TAILQ_FIRST(&r->root_task) && (task = TAILQ_FIRST(&r->root_timer))) {
! 1303: clock_gettime(CLOCK_MONOTONIC, &now);
! 1304:
! 1305: m = TASK_TS(task);
! 1306: sched_timespecsub(&m, &now, &mtmp);
! 1307: r->root_wait = mtmp;
! 1308: } else {
! 1309: /* set wait INFTIM */
! 1310: sched_timespecinf(&r->root_wait);
! 1311: }
! 1312: #endif /* TIMER_WITHOUT_SORT */
! 1313: /* if present member of task, set NOWAIT */
! 1314: if (TAILQ_FIRST(&r->root_task))
! 1315: sched_timespecclear(&r->root_wait);
! 1316:
! 1317: if (r->root_wait.tv_sec != -1 && r->root_wait.tv_nsec != -1) {
! 1318: #if SUP_ENABLE == KQ_SUPPORT
! 1319: timeout = &r->root_wait;
! 1320: #elif SUP_ENABLE == EP_SUPPORT
! 1321: timeout = r->root_wait.tv_sec * 1000 + r->root_wait.tv_nsec / 1000000;
! 1322: #else
! 1323: sched_timespec2val(&r->root_wait, &tv);
! 1324: timeout = &tv;
! 1325: #endif /* KQ_SUPPORT */
! 1326: } else if (sched_timespecisinf(&r->root_poll))
! 1327: #if SUP_ENABLE == EP_SUPPORT
! 1328: timeout = -1;
! 1329: #else
! 1330: timeout = NULL;
! 1331: #endif
! 1332: else {
! 1333: #if SUP_ENABLE == KQ_SUPPORT
! 1334: timeout = &r->root_poll;
! 1335: #elif SUP_ENABLE == EP_SUPPORT
! 1336: timeout = r->root_poll.tv_sec * 1000 + r->root_poll.tv_nsec / 1000000;
! 1337: #else
! 1338: sched_timespec2val(&r->root_poll, &tv);
! 1339: timeout = &tv;
! 1340: #endif /* KQ_SUPPORT */
! 1341: }
! 1342:
! 1343: #if SUP_ENABLE == KQ_SUPPORT
! 1344: if ((en = kevent(r->root_kq, NULL, 0, res, KQ_EVENTS, timeout)) == -1) {
! 1345: #elif SUP_ENABLE == EP_SUPPORT
! 1346: if ((en = epoll_wait(r->root_kq, res, KQ_EVENTS, timeout)) == -1) {
! 1347: #else
! 1348: rfd = xfd = r->root_fds[0];
! 1349: wfd = r->root_fds[1];
! 1350: if ((en = select(r->root_kq, &rfd, &wfd, &xfd, timeout)) == -1) {
! 1351: #endif /* KQ_SUPPORT */
! 1352: if (r->root_hooks.hook_exec.exception) {
! 1353: if (r->root_hooks.hook_exec.exception(r, NULL))
! 1354: return NULL;
! 1355: } else if (errno != EINTR)
! 1356: LOGERR;
! 1357: goto skip_event;
! 1358: }
! 1359:
! 1360: /* Go and catch the cat into pipes ... */
! 1361: #if SUP_ENABLE == KQ_SUPPORT
! 1362: /* kevent dispatcher */
! 1363: fetch_hook_kevent_proceed(en, res, r);
! 1364: #elif SUP_ENABLE == EP_SUPPORT
! 1365: /* epoll dispatcher */
! 1366: fetch_hook_epoll_proceed(en, res, r);
! 1367: #else
! 1368: /* select dispatcher */
! 1369: fetch_hook_select_proceed(en, rfd, wfd, xfd, r);
! 1370: #endif /* KQ_SUPPORT */
1.1 misho 1371:
1.24 misho 1372: skip_event:
1.2 misho 1373: /* timer update & put in ready queue */
1.4 misho 1374: clock_gettime(CLOCK_MONOTONIC, &now);
1.1 misho 1375:
1.6 misho 1376: TAILQ_FOREACH_SAFE(task, &r->root_timer, task_node, tmp)
1.28 ! misho 1377: if (sched_timespeccmp(&now, &TASK_TS(task), -) >= 0)
! 1378: transit_task2ready(task, &r->root_timer);
1.1 misho 1379:
1.12 misho 1380: /* put regular task priority task to ready queue,
1.13 misho 1381: if there is no ready task or reach max missing hit for regular task */
1.12 misho 1382: if ((task = TAILQ_FIRST(&r->root_task))) {
1.13 misho 1383: if (!TAILQ_FIRST(&r->root_ready) || r->root_miss >= TASK_VAL(task)) {
1384: r->root_miss ^= r->root_miss;
1.1 misho 1385:
1.28 ! misho 1386: transit_task2ready(task, &r->root_task);
1.1 misho 1387: } else
1.13 misho 1388: r->root_miss++;
1.1 misho 1389: } else
1.13 misho 1390: r->root_miss ^= r->root_miss;
1.1 misho 1391:
1392: /* OK, lets get ready task !!! */
1.6 misho 1393: task = TAILQ_FIRST(&r->root_ready);
1.28 ! misho 1394: if (task)
! 1395: transit_task2unuse(task, &r->root_ready);
1.1 misho 1396: return task;
1397: }
1.3 misho 1398:
1399: /*
1400: * sched_hook_exception() - Default EXCEPTION hook
1.5 misho 1401: *
1.3 misho 1402: * @root = root task
1403: * @arg = custom handling: if arg == EV_EOF or other value; default: arg == NULL log errno
1404: * return: <0 errors and 0 ok
1405: */
1406: void *
1407: sched_hook_exception(void *root, void *arg)
1408: {
1409: sched_root_task_t *r = root;
1410:
1.6 misho 1411: if (!r)
1.3 misho 1412: return NULL;
1413:
1414: /* custom exception handling ... */
1415: if (arg) {
1416: if (arg == (void*) EV_EOF)
1417: return NULL;
1418: return (void*) -1; /* raise scheduler error!!! */
1419: }
1420:
1421: /* if error hook exists */
1422: if (r->root_hooks.hook_root.error)
1423: return (r->root_hooks.hook_root.error(root, (void*) ((intptr_t) errno)));
1424:
1425: /* default case! */
1426: LOGERR;
1427: return NULL;
1428: }
1.5 misho 1429:
1430: /*
1431: * sched_hook_condition() - Default CONDITION hook
1432: *
1433: * @root = root task
1434: * @arg = killState from schedRun()
1435: * return: NULL kill scheduler loop or !=NULL ok
1436: */
1437: void *
1438: sched_hook_condition(void *root, void *arg)
1439: {
1440: sched_root_task_t *r = root;
1441:
1.6 misho 1442: if (!r)
1.5 misho 1443: return NULL;
1444:
1.28 ! misho 1445: return (void*) (*r->root_cond - *(intptr_t*) arg);
1.5 misho 1446: }
1.19 misho 1447:
1448: /*
1449: * sched_hook_rtc() - Default RTC hook
1450: *
1451: * @task = current task
1452: * @arg = unused
1453: * return: <0 errors and 0 ok
1454: */
1.27 misho 1455: #if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME) && defined(HAVE_TIMER_DELETE)
1.19 misho 1456: void *
1457: sched_hook_rtc(void *task, void *arg __unused)
1458: {
1459: sched_task_t *sigt = NULL, *t = task;
1460: struct itimerspec its;
1461: struct sigevent evt;
1462: timer_t tmr;
1.28 ! misho 1463: #if SUP_ENABLE != KQ_SUPPORT
! 1464: struct sigaction sa;
! 1465: #endif
1.19 misho 1466:
1467: if (!t || !TASK_ROOT(t))
1468: return (void*) -1;
1469:
1470: memset(&evt, 0, sizeof evt);
1471: evt.sigev_notify = SIGEV_SIGNAL;
1.20 misho 1472: evt.sigev_signo = (intptr_t) TASK_DATA(t) + SIGRTMIN;
1.28 ! misho 1473: evt.sigev_value.sival_ptr = t;
1.19 misho 1474:
1475: if (timer_create(CLOCK_MONOTONIC, &evt, &tmr) == -1) {
1476: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
1477: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1478: else
1479: LOGERR;
1480: return (void*) -1;
1481: } else
1482: TASK_FLAG(t) = (u_long) tmr;
1483:
1.28 ! misho 1484: #if SUP_ENABLE == KQ_SUPPORT
1.21 misho 1485: if (!(sigt = schedSignal(TASK_ROOT(t), _sched_rtcWrapper, TASK_ARG(t), evt.sigev_signo,
1486: t, (size_t) tmr))) {
1.19 misho 1487: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
1488: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1489: else
1490: LOGERR;
1491: timer_delete(tmr);
1492: return (void*) -1;
1493: } else
1494: TASK_RET(t) = (uintptr_t) sigt;
1.28 ! misho 1495: #else
! 1496: memset(&sa, 0, sizeof sa);
! 1497: sigemptyset(&sa.sa_mask);
! 1498: sa.sa_sigaction = _sched_rtcSigWrapper;
! 1499: sa.sa_flags = SA_SIGINFO | SA_RESTART;
! 1500:
! 1501: if (sigaction(evt.sigev_signo, &sa, NULL) == -1) {
! 1502: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
! 1503: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
! 1504: else
! 1505: LOGERR;
! 1506: timer_delete(tmr);
! 1507: return (void*) -1;
! 1508: }
! 1509: #endif
1.19 misho 1510:
1511: memset(&its, 0, sizeof its);
1512: its.it_value.tv_sec = t->task_val.ts.tv_sec;
1513: its.it_value.tv_nsec = t->task_val.ts.tv_nsec;
1514:
1515: if (timer_settime(tmr, TIMER_RELTIME, &its, NULL) == -1) {
1516: if (TASK_ROOT(t)->root_hooks.hook_exec.exception)
1517: TASK_ROOT(t)->root_hooks.hook_exec.exception(TASK_ROOT(t), NULL);
1518: else
1519: LOGERR;
1520: schedCancel(sigt);
1521: timer_delete(tmr);
1522: return (void*) -1;
1523: }
1524:
1525: return NULL;
1526: }
1527: #endif /* HAVE_TIMER_CREATE */
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