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Commit | Line | Data |
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d3b12f5d PB |
1 | /* |
2 | * QEMU System Emulator | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
d3b12f5d | 24 | |
0ec024f6 | 25 | #include "qemu-common.h" |
1de7afc9 | 26 | #include "qemu/timer.h" |
0ec024f6 | 27 | #include "slirp/slirp.h" |
1de7afc9 | 28 | #include "qemu/main-loop.h" |
737e150e | 29 | #include "block/aio.h" |
d3b12f5d PB |
30 | |
31 | #ifndef _WIN32 | |
32 | ||
1de7afc9 | 33 | #include "qemu/compatfd.h" |
0ec024f6 | 34 | |
d3b12f5d PB |
35 | /* If we have signalfd, we mask out the signals we want to handle and then |
36 | * use signalfd to listen for them. We rely on whatever the current signal | |
37 | * handler is to dispatch the signals when we receive them. | |
38 | */ | |
39 | static void sigfd_handler(void *opaque) | |
40 | { | |
41 | int fd = (intptr_t)opaque; | |
42 | struct qemu_signalfd_siginfo info; | |
43 | struct sigaction action; | |
44 | ssize_t len; | |
45 | ||
46 | while (1) { | |
47 | do { | |
48 | len = read(fd, &info, sizeof(info)); | |
49 | } while (len == -1 && errno == EINTR); | |
50 | ||
51 | if (len == -1 && errno == EAGAIN) { | |
52 | break; | |
53 | } | |
54 | ||
55 | if (len != sizeof(info)) { | |
56 | printf("read from sigfd returned %zd: %m\n", len); | |
57 | return; | |
58 | } | |
59 | ||
60 | sigaction(info.ssi_signo, NULL, &action); | |
61 | if ((action.sa_flags & SA_SIGINFO) && action.sa_sigaction) { | |
62 | action.sa_sigaction(info.ssi_signo, | |
63 | (siginfo_t *)&info, NULL); | |
64 | } else if (action.sa_handler) { | |
65 | action.sa_handler(info.ssi_signo); | |
66 | } | |
67 | } | |
68 | } | |
69 | ||
70 | static int qemu_signal_init(void) | |
71 | { | |
72 | int sigfd; | |
73 | sigset_t set; | |
74 | ||
75 | /* | |
76 | * SIG_IPI must be blocked in the main thread and must not be caught | |
77 | * by sigwait() in the signal thread. Otherwise, the cpu thread will | |
78 | * not catch it reliably. | |
79 | */ | |
80 | sigemptyset(&set); | |
81 | sigaddset(&set, SIG_IPI); | |
d3b12f5d PB |
82 | sigaddset(&set, SIGIO); |
83 | sigaddset(&set, SIGALRM); | |
84 | sigaddset(&set, SIGBUS); | |
85 | pthread_sigmask(SIG_BLOCK, &set, NULL); | |
86 | ||
4aa7534d | 87 | sigdelset(&set, SIG_IPI); |
d3b12f5d PB |
88 | sigfd = qemu_signalfd(&set); |
89 | if (sigfd == -1) { | |
90 | fprintf(stderr, "failed to create signalfd\n"); | |
91 | return -errno; | |
92 | } | |
93 | ||
94 | fcntl_setfl(sigfd, O_NONBLOCK); | |
95 | ||
96 | qemu_set_fd_handler2(sigfd, NULL, sigfd_handler, NULL, | |
97 | (void *)(intptr_t)sigfd); | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | #else /* _WIN32 */ | |
103 | ||
4c8d0d27 | 104 | static int qemu_signal_init(void) |
d3b12f5d | 105 | { |
d3b12f5d PB |
106 | return 0; |
107 | } | |
4c8d0d27 PB |
108 | #endif |
109 | ||
110 | static AioContext *qemu_aio_context; | |
d3b12f5d PB |
111 | |
112 | void qemu_notify_event(void) | |
113 | { | |
4c8d0d27 | 114 | if (!qemu_aio_context) { |
ee77dfb2 MR |
115 | return; |
116 | } | |
4c8d0d27 | 117 | aio_notify(qemu_aio_context); |
d3b12f5d PB |
118 | } |
119 | ||
cbff4b34 SH |
120 | static GArray *gpollfds; |
121 | ||
172061a0 | 122 | int qemu_init_main_loop(void) |
d3b12f5d PB |
123 | { |
124 | int ret; | |
82cbbdc6 | 125 | GSource *src; |
d3b12f5d | 126 | |
172061a0 | 127 | init_clocks(); |
f9ab4654 PB |
128 | if (init_timer_alarm() < 0) { |
129 | fprintf(stderr, "could not initialize alarm timer\n"); | |
130 | exit(1); | |
131 | } | |
172061a0 | 132 | |
d3b12f5d PB |
133 | ret = qemu_signal_init(); |
134 | if (ret) { | |
135 | return ret; | |
136 | } | |
137 | ||
cbff4b34 | 138 | gpollfds = g_array_new(FALSE, FALSE, sizeof(GPollFD)); |
f627aab1 | 139 | qemu_aio_context = aio_context_new(); |
82cbbdc6 PB |
140 | src = aio_get_g_source(qemu_aio_context); |
141 | g_source_attach(src, NULL); | |
142 | g_source_unref(src); | |
d3b12f5d PB |
143 | return 0; |
144 | } | |
145 | ||
15455536 PB |
146 | static fd_set rfds, wfds, xfds; |
147 | static int nfds; | |
d3b12f5d PB |
148 | static int max_priority; |
149 | ||
cbff4b34 SH |
150 | /* Load rfds/wfds/xfds into gpollfds. Will be removed a few commits later. */ |
151 | static void gpollfds_from_select(void) | |
152 | { | |
153 | int fd; | |
154 | for (fd = 0; fd <= nfds; fd++) { | |
155 | int events = 0; | |
156 | if (FD_ISSET(fd, &rfds)) { | |
157 | events |= G_IO_IN | G_IO_HUP | G_IO_ERR; | |
158 | } | |
159 | if (FD_ISSET(fd, &wfds)) { | |
160 | events |= G_IO_OUT | G_IO_ERR; | |
161 | } | |
162 | if (FD_ISSET(fd, &xfds)) { | |
163 | events |= G_IO_PRI; | |
164 | } | |
165 | if (events) { | |
166 | GPollFD pfd = { | |
167 | .fd = fd, | |
168 | .events = events, | |
169 | }; | |
170 | g_array_append_val(gpollfds, pfd); | |
171 | } | |
172 | } | |
173 | } | |
174 | ||
175 | /* Store gpollfds revents into rfds/wfds/xfds. Will be removed a few commits | |
176 | * later. | |
177 | */ | |
178 | static void gpollfds_to_select(int ret) | |
179 | { | |
180 | int i; | |
181 | ||
182 | FD_ZERO(&rfds); | |
183 | FD_ZERO(&wfds); | |
184 | FD_ZERO(&xfds); | |
185 | ||
186 | if (ret <= 0) { | |
187 | return; | |
188 | } | |
189 | ||
190 | for (i = 0; i < gpollfds->len; i++) { | |
191 | int fd = g_array_index(gpollfds, GPollFD, i).fd; | |
192 | int revents = g_array_index(gpollfds, GPollFD, i).revents; | |
193 | ||
194 | if (revents & (G_IO_IN | G_IO_HUP | G_IO_ERR)) { | |
195 | FD_SET(fd, &rfds); | |
196 | } | |
197 | if (revents & (G_IO_OUT | G_IO_ERR)) { | |
198 | FD_SET(fd, &wfds); | |
199 | } | |
200 | if (revents & G_IO_PRI) { | |
201 | FD_SET(fd, &xfds); | |
202 | } | |
203 | } | |
204 | } | |
205 | ||
ea26ce76 | 206 | #ifndef _WIN32 |
48ce11ff SH |
207 | static int glib_pollfds_idx; |
208 | static int glib_n_poll_fds; | |
209 | ||
210 | static void glib_pollfds_fill(uint32_t *cur_timeout) | |
d3b12f5d PB |
211 | { |
212 | GMainContext *context = g_main_context_default(); | |
4dae83ae | 213 | int timeout = 0; |
48ce11ff | 214 | int n; |
d3b12f5d PB |
215 | |
216 | g_main_context_prepare(context, &max_priority); | |
217 | ||
48ce11ff SH |
218 | glib_pollfds_idx = gpollfds->len; |
219 | n = glib_n_poll_fds; | |
220 | do { | |
221 | GPollFD *pfds; | |
222 | glib_n_poll_fds = n; | |
223 | g_array_set_size(gpollfds, glib_pollfds_idx + glib_n_poll_fds); | |
224 | pfds = &g_array_index(gpollfds, GPollFD, glib_pollfds_idx); | |
225 | n = g_main_context_query(context, max_priority, &timeout, pfds, | |
226 | glib_n_poll_fds); | |
227 | } while (n != glib_n_poll_fds); | |
d3b12f5d | 228 | |
4dae83ae PB |
229 | if (timeout >= 0 && timeout < *cur_timeout) { |
230 | *cur_timeout = timeout; | |
d3b12f5d PB |
231 | } |
232 | } | |
233 | ||
48ce11ff | 234 | static void glib_pollfds_poll(void) |
d3b12f5d PB |
235 | { |
236 | GMainContext *context = g_main_context_default(); | |
48ce11ff | 237 | GPollFD *pfds = &g_array_index(gpollfds, GPollFD, glib_pollfds_idx); |
d3b12f5d | 238 | |
48ce11ff | 239 | if (g_main_context_check(context, max_priority, pfds, glib_n_poll_fds)) { |
d3b12f5d PB |
240 | g_main_context_dispatch(context); |
241 | } | |
242 | } | |
243 | ||
7c7db755 | 244 | static int os_host_main_loop_wait(uint32_t timeout) |
15455536 | 245 | { |
15455536 PB |
246 | int ret; |
247 | ||
48ce11ff | 248 | glib_pollfds_fill(&timeout); |
15455536 PB |
249 | |
250 | if (timeout > 0) { | |
251 | qemu_mutex_unlock_iothread(); | |
252 | } | |
253 | ||
cbff4b34 SH |
254 | /* We'll eventually drop fd_set completely. But for now we still have |
255 | * *_fill() and *_poll() functions that use rfds/wfds/xfds. | |
256 | */ | |
257 | gpollfds_from_select(); | |
258 | ||
259 | ret = g_poll((GPollFD *)gpollfds->data, gpollfds->len, timeout); | |
260 | ||
261 | gpollfds_to_select(ret); | |
15455536 PB |
262 | |
263 | if (timeout > 0) { | |
264 | qemu_mutex_lock_iothread(); | |
265 | } | |
266 | ||
48ce11ff | 267 | glib_pollfds_poll(); |
15455536 PB |
268 | return ret; |
269 | } | |
270 | #else | |
d3b12f5d PB |
271 | /***********************************************************/ |
272 | /* Polling handling */ | |
273 | ||
274 | typedef struct PollingEntry { | |
275 | PollingFunc *func; | |
276 | void *opaque; | |
277 | struct PollingEntry *next; | |
278 | } PollingEntry; | |
279 | ||
280 | static PollingEntry *first_polling_entry; | |
281 | ||
282 | int qemu_add_polling_cb(PollingFunc *func, void *opaque) | |
283 | { | |
284 | PollingEntry **ppe, *pe; | |
285 | pe = g_malloc0(sizeof(PollingEntry)); | |
286 | pe->func = func; | |
287 | pe->opaque = opaque; | |
288 | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next); | |
289 | *ppe = pe; | |
290 | return 0; | |
291 | } | |
292 | ||
293 | void qemu_del_polling_cb(PollingFunc *func, void *opaque) | |
294 | { | |
295 | PollingEntry **ppe, *pe; | |
296 | for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) { | |
297 | pe = *ppe; | |
298 | if (pe->func == func && pe->opaque == opaque) { | |
299 | *ppe = pe->next; | |
300 | g_free(pe); | |
301 | break; | |
302 | } | |
303 | } | |
304 | } | |
305 | ||
306 | /***********************************************************/ | |
307 | /* Wait objects support */ | |
308 | typedef struct WaitObjects { | |
309 | int num; | |
06ac7d49 | 310 | int revents[MAXIMUM_WAIT_OBJECTS + 1]; |
d3b12f5d PB |
311 | HANDLE events[MAXIMUM_WAIT_OBJECTS + 1]; |
312 | WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1]; | |
313 | void *opaque[MAXIMUM_WAIT_OBJECTS + 1]; | |
314 | } WaitObjects; | |
315 | ||
316 | static WaitObjects wait_objects = {0}; | |
317 | ||
318 | int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) | |
319 | { | |
320 | WaitObjects *w = &wait_objects; | |
321 | if (w->num >= MAXIMUM_WAIT_OBJECTS) { | |
322 | return -1; | |
323 | } | |
324 | w->events[w->num] = handle; | |
325 | w->func[w->num] = func; | |
326 | w->opaque[w->num] = opaque; | |
06ac7d49 | 327 | w->revents[w->num] = 0; |
d3b12f5d PB |
328 | w->num++; |
329 | return 0; | |
330 | } | |
331 | ||
332 | void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque) | |
333 | { | |
334 | int i, found; | |
335 | WaitObjects *w = &wait_objects; | |
336 | ||
337 | found = 0; | |
338 | for (i = 0; i < w->num; i++) { | |
339 | if (w->events[i] == handle) { | |
340 | found = 1; | |
341 | } | |
342 | if (found) { | |
343 | w->events[i] = w->events[i + 1]; | |
344 | w->func[i] = w->func[i + 1]; | |
345 | w->opaque[i] = w->opaque[i + 1]; | |
06ac7d49 | 346 | w->revents[i] = w->revents[i + 1]; |
d3b12f5d PB |
347 | } |
348 | } | |
349 | if (found) { | |
350 | w->num--; | |
351 | } | |
352 | } | |
353 | ||
d3385eb4 PB |
354 | void qemu_fd_register(int fd) |
355 | { | |
4c8d0d27 PB |
356 | WSAEventSelect(fd, event_notifier_get_handle(&qemu_aio_context->notifier), |
357 | FD_READ | FD_ACCEPT | FD_CLOSE | | |
d3385eb4 PB |
358 | FD_CONNECT | FD_WRITE | FD_OOB); |
359 | } | |
360 | ||
cbff4b34 SH |
361 | static int pollfds_fill(GArray *pollfds, fd_set *rfds, fd_set *wfds, |
362 | fd_set *xfds) | |
363 | { | |
364 | int nfds = -1; | |
365 | int i; | |
366 | ||
367 | for (i = 0; i < pollfds->len; i++) { | |
368 | GPollFD *pfd = &g_array_index(pollfds, GPollFD, i); | |
369 | int fd = pfd->fd; | |
370 | int events = pfd->events; | |
371 | if (events & (G_IO_IN | G_IO_HUP | G_IO_ERR)) { | |
372 | FD_SET(fd, rfds); | |
373 | nfds = MAX(nfds, fd); | |
374 | } | |
375 | if (events & (G_IO_OUT | G_IO_ERR)) { | |
376 | FD_SET(fd, wfds); | |
377 | nfds = MAX(nfds, fd); | |
378 | } | |
379 | if (events & G_IO_PRI) { | |
380 | FD_SET(fd, xfds); | |
381 | nfds = MAX(nfds, fd); | |
382 | } | |
383 | } | |
384 | return nfds; | |
385 | } | |
386 | ||
387 | static void pollfds_poll(GArray *pollfds, int nfds, fd_set *rfds, | |
388 | fd_set *wfds, fd_set *xfds) | |
389 | { | |
390 | int i; | |
391 | ||
392 | for (i = 0; i < pollfds->len; i++) { | |
393 | GPollFD *pfd = &g_array_index(pollfds, GPollFD, i); | |
394 | int fd = pfd->fd; | |
395 | int revents = 0; | |
396 | ||
397 | if (FD_ISSET(fd, rfds)) { | |
398 | revents |= G_IO_IN | G_IO_HUP | G_IO_ERR; | |
399 | } | |
400 | if (FD_ISSET(fd, wfds)) { | |
401 | revents |= G_IO_OUT | G_IO_ERR; | |
402 | } | |
403 | if (FD_ISSET(fd, xfds)) { | |
404 | revents |= G_IO_PRI; | |
405 | } | |
406 | pfd->revents = revents & pfd->events; | |
407 | } | |
408 | } | |
409 | ||
7c7db755 | 410 | static int os_host_main_loop_wait(uint32_t timeout) |
d3b12f5d | 411 | { |
ea26ce76 | 412 | GMainContext *context = g_main_context_default(); |
48ce11ff | 413 | GPollFD poll_fds[1024 * 2]; /* this is probably overkill */ |
134a03e0 | 414 | int select_ret = 0; |
48ce11ff | 415 | int g_poll_ret, ret, i, n_poll_fds; |
d3b12f5d | 416 | PollingEntry *pe; |
d3385eb4 | 417 | WaitObjects *w = &wait_objects; |
42fe1c24 | 418 | gint poll_timeout; |
15455536 | 419 | static struct timeval tv0; |
d3b12f5d PB |
420 | |
421 | /* XXX: need to suppress polling by better using win32 events */ | |
422 | ret = 0; | |
423 | for (pe = first_polling_entry; pe != NULL; pe = pe->next) { | |
424 | ret |= pe->func(pe->opaque); | |
425 | } | |
d3385eb4 PB |
426 | if (ret != 0) { |
427 | return ret; | |
428 | } | |
d3b12f5d | 429 | |
ea26ce76 | 430 | g_main_context_prepare(context, &max_priority); |
42fe1c24 | 431 | n_poll_fds = g_main_context_query(context, max_priority, &poll_timeout, |
ea26ce76 PB |
432 | poll_fds, ARRAY_SIZE(poll_fds)); |
433 | g_assert(n_poll_fds <= ARRAY_SIZE(poll_fds)); | |
434 | ||
06ac7d49 | 435 | for (i = 0; i < w->num; i++) { |
58b9630d | 436 | poll_fds[n_poll_fds + i].fd = (DWORD_PTR)w->events[i]; |
ea26ce76 | 437 | poll_fds[n_poll_fds + i].events = G_IO_IN; |
06ac7d49 PB |
438 | } |
439 | ||
3239ad04 SW |
440 | if (poll_timeout < 0 || timeout < poll_timeout) { |
441 | poll_timeout = timeout; | |
442 | } | |
443 | ||
d3385eb4 | 444 | qemu_mutex_unlock_iothread(); |
5e3bc735 | 445 | g_poll_ret = g_poll(poll_fds, n_poll_fds + w->num, poll_timeout); |
d3385eb4 | 446 | qemu_mutex_lock_iothread(); |
5e3bc735 | 447 | if (g_poll_ret > 0) { |
06ac7d49 | 448 | for (i = 0; i < w->num; i++) { |
ea26ce76 | 449 | w->revents[i] = poll_fds[n_poll_fds + i].revents; |
d3385eb4 | 450 | } |
06ac7d49 PB |
451 | for (i = 0; i < w->num; i++) { |
452 | if (w->revents[i] && w->func[i]) { | |
453 | w->func[i](w->opaque[i]); | |
d3b12f5d | 454 | } |
d3b12f5d PB |
455 | } |
456 | } | |
457 | ||
ea26ce76 PB |
458 | if (g_main_context_check(context, max_priority, poll_fds, n_poll_fds)) { |
459 | g_main_context_dispatch(context); | |
460 | } | |
461 | ||
5e3bc735 FC |
462 | /* Call select after g_poll to avoid a useless iteration and therefore |
463 | * improve socket latency. | |
d3385eb4 PB |
464 | */ |
465 | ||
cbff4b34 SH |
466 | /* This back-and-forth between GPollFDs and select(2) is temporary. We'll |
467 | * drop it in a couple of patches, I promise :). | |
468 | */ | |
469 | gpollfds_from_select(); | |
470 | FD_ZERO(&rfds); | |
471 | FD_ZERO(&wfds); | |
472 | FD_ZERO(&xfds); | |
473 | nfds = pollfds_fill(gpollfds, &rfds, &wfds, &xfds); | |
5e3bc735 FC |
474 | if (nfds >= 0) { |
475 | select_ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv0); | |
476 | if (select_ret != 0) { | |
477 | timeout = 0; | |
478 | } | |
cbff4b34 SH |
479 | if (select_ret > 0) { |
480 | pollfds_poll(gpollfds, nfds, &rfds, &wfds, &xfds); | |
481 | } | |
5e3bc735 | 482 | } |
cbff4b34 | 483 | gpollfds_to_select(select_ret); |
5e3bc735 FC |
484 | |
485 | return select_ret || g_poll_ret; | |
d3b12f5d PB |
486 | } |
487 | #endif | |
488 | ||
489 | int main_loop_wait(int nonblocking) | |
490 | { | |
7c7db755 SS |
491 | int ret; |
492 | uint32_t timeout = UINT32_MAX; | |
d3b12f5d PB |
493 | |
494 | if (nonblocking) { | |
495 | timeout = 0; | |
d3b12f5d PB |
496 | } |
497 | ||
d3b12f5d | 498 | /* poll any events */ |
cbff4b34 | 499 | g_array_set_size(gpollfds, 0); /* reset for new iteration */ |
d3b12f5d PB |
500 | /* XXX: separate device handlers from system ones */ |
501 | nfds = -1; | |
502 | FD_ZERO(&rfds); | |
503 | FD_ZERO(&wfds); | |
504 | FD_ZERO(&xfds); | |
505 | ||
506 | #ifdef CONFIG_SLIRP | |
7c7db755 | 507 | slirp_update_timeout(&timeout); |
d3b12f5d PB |
508 | slirp_select_fill(&nfds, &rfds, &wfds, &xfds); |
509 | #endif | |
510 | qemu_iohandler_fill(&nfds, &rfds, &wfds, &xfds); | |
15455536 | 511 | ret = os_host_main_loop_wait(timeout); |
d3b12f5d PB |
512 | qemu_iohandler_poll(&rfds, &wfds, &xfds, ret); |
513 | #ifdef CONFIG_SLIRP | |
514 | slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0)); | |
515 | #endif | |
516 | ||
517 | qemu_run_all_timers(); | |
518 | ||
d3b12f5d PB |
519 | return ret; |
520 | } | |
f627aab1 PB |
521 | |
522 | /* Functions to operate on the main QEMU AioContext. */ | |
523 | ||
524 | QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque) | |
525 | { | |
526 | return aio_bh_new(qemu_aio_context, cb, opaque); | |
527 | } | |
528 | ||
a915f4bc PB |
529 | bool qemu_aio_wait(void) |
530 | { | |
7c0628b2 | 531 | return aio_poll(qemu_aio_context, true); |
a915f4bc PB |
532 | } |
533 | ||
f42b2207 | 534 | #ifdef CONFIG_POSIX |
a915f4bc PB |
535 | void qemu_aio_set_fd_handler(int fd, |
536 | IOHandler *io_read, | |
537 | IOHandler *io_write, | |
538 | AioFlushHandler *io_flush, | |
539 | void *opaque) | |
540 | { | |
541 | aio_set_fd_handler(qemu_aio_context, fd, io_read, io_write, io_flush, | |
542 | opaque); | |
a915f4bc | 543 | } |
82cbbdc6 | 544 | #endif |
a915f4bc | 545 | |
a915f4bc PB |
546 | void qemu_aio_set_event_notifier(EventNotifier *notifier, |
547 | EventNotifierHandler *io_read, | |
548 | AioFlushEventNotifierHandler *io_flush) | |
549 | { | |
82cbbdc6 | 550 | aio_set_event_notifier(qemu_aio_context, notifier, io_read, io_flush); |
a915f4bc | 551 | } |