Commit | Line | Data |
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ecc314ba BC |
1 | /* |
2 | * Native Windows async IO engine | |
93bcfd20 | 3 | * Copyright (C) 2012 Bruce Cran <bruce@cran.org.uk> |
ecc314ba BC |
4 | */ |
5 | ||
ecc314ba BC |
6 | #include <stdio.h> |
7 | #include <stdlib.h> | |
8 | #include <unistd.h> | |
9 | #include <signal.h> | |
10 | #include <errno.h> | |
11 | #include <windows.h> | |
12 | ||
13 | #include "../fio.h" | |
14 | ||
ea4500d8 BC |
15 | typedef BOOL (WINAPI *CANCELIOEX)(HANDLE hFile, LPOVERLAPPED lpOverlapped); |
16 | ||
66c098b8 BC |
17 | int geterrno_from_win_error (DWORD code, int deferrno); |
18 | ||
67897036 BC |
19 | struct fio_overlapped { |
20 | OVERLAPPED o; | |
21 | struct io_u *io_u; | |
22 | BOOL io_complete; | |
40c5db35 | 23 | BOOL io_free; |
67897036 | 24 | }; |
ecc314ba | 25 | |
9b836561 | 26 | struct windowsaio_data { |
67897036 | 27 | struct fio_overlapped *ovls; |
9b836561 | 28 | struct io_u **aio_events; |
67897036 | 29 | HANDLE iothread; |
9b836561 | 30 | HANDLE iocomplete_event; |
ea4500d8 | 31 | CANCELIOEX pCancelIoEx; |
67897036 | 32 | BOOL iothread_running; |
9b836561 BC |
33 | }; |
34 | ||
ecc314ba | 35 | struct thread_ctx { |
9b836561 | 36 | HANDLE iocp; |
ecc314ba BC |
37 | struct windowsaio_data *wd; |
38 | }; | |
39 | ||
ecc314ba BC |
40 | static int fio_windowsaio_cancel(struct thread_data *td, |
41 | struct io_u *io_u); | |
67897036 | 42 | static BOOL timeout_expired(DWORD start_count, DWORD end_count); |
ecc314ba BC |
43 | static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min, |
44 | unsigned int max, struct timespec *t); | |
45 | static struct io_u *fio_windowsaio_event(struct thread_data *td, int event); | |
46 | static int fio_windowsaio_queue(struct thread_data *td, | |
47 | struct io_u *io_u); | |
48 | static void fio_windowsaio_cleanup(struct thread_data *td); | |
49 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter); | |
50 | static int fio_windowsaio_init(struct thread_data *td); | |
51 | static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f); | |
52 | static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f); | |
66c098b8 BC |
53 | static int win_to_poxix_error(DWORD winerr); |
54 | ||
55 | static int win_to_poxix_error(DWORD winerr) | |
56 | { | |
57 | switch (winerr) | |
58 | { | |
59 | case ERROR_FILE_NOT_FOUND: return ENOENT; | |
60 | case ERROR_PATH_NOT_FOUND: return ENOENT; | |
61 | case ERROR_ACCESS_DENIED: return EACCES; | |
62 | case ERROR_INVALID_HANDLE: return EBADF; | |
63 | case ERROR_NOT_ENOUGH_MEMORY: return ENOMEM; | |
64 | case ERROR_INVALID_DATA: return EINVAL; | |
65 | case ERROR_OUTOFMEMORY: return ENOMEM; | |
66 | case ERROR_INVALID_DRIVE: return ENODEV; | |
67 | case ERROR_NOT_SAME_DEVICE: return EXDEV; | |
68 | case ERROR_WRITE_PROTECT: return EROFS; | |
69 | case ERROR_BAD_UNIT: return ENODEV; | |
70 | case ERROR_SHARING_VIOLATION: return EACCES; | |
71 | case ERROR_LOCK_VIOLATION: return EACCES; | |
72 | case ERROR_SHARING_BUFFER_EXCEEDED: return ENOLCK; | |
73 | case ERROR_HANDLE_DISK_FULL: return ENOSPC; | |
74 | case ERROR_NOT_SUPPORTED: return ENOSYS; | |
75 | case ERROR_FILE_EXISTS: return EEXIST; | |
76 | case ERROR_CANNOT_MAKE: return EPERM; | |
77 | case ERROR_INVALID_PARAMETER: return EINVAL; | |
78 | case ERROR_NO_PROC_SLOTS: return EAGAIN; | |
79 | case ERROR_BROKEN_PIPE: return EPIPE; | |
80 | case ERROR_OPEN_FAILED: return EIO; | |
81 | case ERROR_NO_MORE_SEARCH_HANDLES: return ENFILE; | |
82 | case ERROR_CALL_NOT_IMPLEMENTED: return ENOSYS; | |
83 | case ERROR_INVALID_NAME: return ENOENT; | |
84 | case ERROR_WAIT_NO_CHILDREN: return ECHILD; | |
85 | case ERROR_CHILD_NOT_COMPLETE: return EBUSY; | |
86 | case ERROR_DIR_NOT_EMPTY: return ENOTEMPTY; | |
87 | case ERROR_SIGNAL_REFUSED: return EIO; | |
88 | case ERROR_BAD_PATHNAME: return ENOENT; | |
89 | case ERROR_SIGNAL_PENDING: return EBUSY; | |
90 | case ERROR_MAX_THRDS_REACHED: return EAGAIN; | |
91 | case ERROR_BUSY: return EBUSY; | |
92 | case ERROR_ALREADY_EXISTS: return EEXIST; | |
93 | case ERROR_NO_SIGNAL_SENT: return EIO; | |
94 | case ERROR_FILENAME_EXCED_RANGE: return EINVAL; | |
95 | case ERROR_META_EXPANSION_TOO_LONG: return EINVAL; | |
96 | case ERROR_INVALID_SIGNAL_NUMBER: return EINVAL; | |
97 | case ERROR_THREAD_1_INACTIVE: return EINVAL; | |
98 | case ERROR_BAD_PIPE: return EINVAL; | |
99 | case ERROR_PIPE_BUSY: return EBUSY; | |
100 | case ERROR_NO_DATA: return EPIPE; | |
101 | case ERROR_MORE_DATA: return EAGAIN; | |
102 | case ERROR_DIRECTORY: return ENOTDIR; | |
103 | case ERROR_PIPE_CONNECTED: return EBUSY; | |
104 | case ERROR_NO_TOKEN: return EINVAL; | |
105 | case ERROR_PROCESS_ABORTED: return EFAULT; | |
106 | case ERROR_BAD_DEVICE: return ENODEV; | |
107 | case ERROR_BAD_USERNAME: return EINVAL; | |
108 | case ERROR_OPEN_FILES: return EAGAIN; | |
109 | case ERROR_ACTIVE_CONNECTIONS: return EAGAIN; | |
110 | case ERROR_DEVICE_IN_USE: return EAGAIN; | |
111 | case ERROR_INVALID_AT_INTERRUPT_TIME: return EINTR; | |
112 | case ERROR_IO_DEVICE: return EIO; | |
113 | case ERROR_NOT_OWNER: return EPERM; | |
114 | case ERROR_END_OF_MEDIA: return ENOSPC; | |
115 | case ERROR_EOM_OVERFLOW: return ENOSPC; | |
116 | case ERROR_BEGINNING_OF_MEDIA: return ESPIPE; | |
117 | case ERROR_SETMARK_DETECTED: return ESPIPE; | |
118 | case ERROR_NO_DATA_DETECTED: return ENOSPC; | |
119 | case ERROR_POSSIBLE_DEADLOCK: return EDEADLOCK; | |
120 | case ERROR_CRC: return EIO; | |
121 | case ERROR_NEGATIVE_SEEK: return EINVAL; | |
122 | case ERROR_DISK_FULL: return ENOSPC; | |
123 | case ERROR_NOACCESS: return EFAULT; | |
124 | case ERROR_FILE_INVALID: return ENXIO; | |
125 | } | |
126 | ||
127 | return winerr; | |
128 | } | |
ecc314ba | 129 | |
9b836561 BC |
130 | int sync_file_range(int fd, off64_t offset, off64_t nbytes, |
131 | unsigned int flags) | |
132 | { | |
133 | errno = ENOSYS; | |
134 | return -1; | |
135 | } | |
136 | ||
ecc314ba BC |
137 | static int fio_windowsaio_init(struct thread_data *td) |
138 | { | |
ecc314ba | 139 | struct windowsaio_data *wd; |
ea4500d8 | 140 | HANDLE hKernel32Dll; |
9b836561 | 141 | int rc = 0; |
67897036 | 142 | int i; |
ecc314ba | 143 | |
ecc314ba | 144 | wd = malloc(sizeof(struct windowsaio_data)); |
9b836561 BC |
145 | if (wd != NULL) |
146 | ZeroMemory(wd, sizeof(struct windowsaio_data)); | |
147 | else | |
148 | rc = 1; | |
ecc314ba | 149 | |
9b836561 BC |
150 | if (!rc) { |
151 | wd->aio_events = malloc(td->o.iodepth * sizeof(struct io_u*)); | |
152 | if (wd->aio_events == NULL) | |
153 | rc = 1; | |
e4db9fec BC |
154 | } |
155 | ||
9b836561 | 156 | if (!rc) { |
67897036 BC |
157 | wd->ovls = malloc(td->o.iodepth * sizeof(struct fio_overlapped)); |
158 | if (wd->ovls == NULL) | |
9b836561 | 159 | rc = 1; |
e4db9fec BC |
160 | } |
161 | ||
9b836561 | 162 | if (!rc) { |
f9a58c2a BC |
163 | for (i = 0; i < td->o.iodepth; i++) { |
164 | wd->ovls[i].io_free = TRUE; | |
165 | wd->ovls[i].io_complete = FALSE; | |
67897036 BC |
166 | |
167 | wd->ovls[i].o.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | |
168 | if (wd->ovls[i].o.hEvent == NULL) { | |
169 | rc = 1; | |
170 | break; | |
171 | } | |
f9a58c2a | 172 | } |
9b836561 | 173 | } |
e4db9fec | 174 | |
9b836561 BC |
175 | if (!rc) { |
176 | /* Create an auto-reset event */ | |
177 | wd->iocomplete_event = CreateEvent(NULL, FALSE, FALSE, NULL); | |
178 | if (wd->iocomplete_event == NULL) | |
179 | rc = 1; | |
180 | } | |
181 | ||
9b836561 | 182 | if (rc) { |
9b836561 BC |
183 | if (wd != NULL) { |
184 | if (wd->ovls != NULL) | |
185 | free(wd->ovls); | |
9b836561 BC |
186 | if (wd->aio_events != NULL) |
187 | free(wd->aio_events); | |
188 | ||
189 | free(wd); | |
190 | } | |
191 | } | |
ecc314ba | 192 | |
ea4500d8 | 193 | hKernel32Dll = GetModuleHandle("kernel32.dll"); |
93bcfd20 | 194 | wd->pCancelIoEx = (CANCELIOEX)GetProcAddress(hKernel32Dll, "CancelIoEx"); |
ecc314ba | 195 | td->io_ops->data = wd; |
93bcfd20 | 196 | |
4e79098f | 197 | return rc; |
ecc314ba BC |
198 | } |
199 | ||
67897036 BC |
200 | static void fio_windowsaio_cleanup(struct thread_data *td) |
201 | { | |
202 | int i; | |
203 | struct windowsaio_data *wd; | |
204 | ||
205 | wd = td->io_ops->data; | |
206 | ||
207 | if (wd != NULL) { | |
40c5db35 JA |
208 | wd->iothread_running = FALSE; |
209 | WaitForSingleObject(wd->iothread, INFINITE); | |
67897036 BC |
210 | |
211 | CloseHandle(wd->iothread); | |
212 | CloseHandle(wd->iocomplete_event); | |
213 | ||
93bcfd20 | 214 | for (i = 0; i < td->o.iodepth; i++) { |
67897036 | 215 | CloseHandle(wd->ovls[i].o.hEvent); |
93bcfd20 | 216 | } |
67897036 BC |
217 | |
218 | free(wd->aio_events); | |
219 | free(wd->ovls); | |
220 | free(wd); | |
221 | ||
222 | td->io_ops->data = NULL; | |
223 | } | |
224 | } | |
225 | ||
226 | ||
ecc314ba BC |
227 | static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f) |
228 | { | |
229 | int rc = 0; | |
230 | HANDLE hFile; | |
4e79098f | 231 | DWORD flags = FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_OVERLAPPED; |
ecc314ba BC |
232 | DWORD sharemode = FILE_SHARE_READ | FILE_SHARE_WRITE; |
233 | DWORD openmode = OPEN_ALWAYS; | |
234 | DWORD access; | |
235 | ||
236 | dprint(FD_FILE, "fd open %s\n", f->file_name); | |
237 | ||
ecc314ba BC |
238 | if (f->filetype == FIO_TYPE_PIPE) { |
239 | log_err("fio: windowsaio doesn't support pipes\n"); | |
240 | return 1; | |
241 | } | |
242 | ||
243 | if (!strcmp(f->file_name, "-")) { | |
244 | log_err("fio: can't read/write to stdin/out\n"); | |
245 | return 1; | |
246 | } | |
247 | ||
248 | if (td->o.odirect) | |
249 | flags |= FILE_FLAG_NO_BUFFERING; | |
250 | if (td->o.sync_io) | |
251 | flags |= FILE_FLAG_WRITE_THROUGH; | |
252 | ||
93bcfd20 BC |
253 | /* |
254 | * Inform Windows whether we're going to be doing sequential or | |
255 | * random io so it can tune the Cache Manager | |
256 | */ | |
ecc314ba | 257 | if (td->o.td_ddir == TD_DDIR_READ || |
ea4500d8 | 258 | td->o.td_ddir == TD_DDIR_WRITE) |
ecc314ba | 259 | flags |= FILE_FLAG_SEQUENTIAL_SCAN; |
ecc314ba | 260 | else |
ecc314ba | 261 | flags |= FILE_FLAG_RANDOM_ACCESS; |
ecc314ba | 262 | |
ea4500d8 | 263 | if (!td_write(td) || read_only) |
ecc314ba BC |
264 | access = GENERIC_READ; |
265 | else | |
266 | access = (GENERIC_READ | GENERIC_WRITE); | |
267 | ||
93bcfd20 | 268 | if (td->o.create_on_open) |
ecc314ba BC |
269 | openmode = OPEN_ALWAYS; |
270 | else | |
271 | openmode = OPEN_EXISTING; | |
272 | ||
273 | f->hFile = CreateFile(f->file_name, access, sharemode, | |
274 | NULL, openmode, flags, NULL); | |
275 | ||
4e79098f | 276 | if (f->hFile == INVALID_HANDLE_VALUE) |
ecc314ba | 277 | rc = 1; |
ecc314ba | 278 | |
93bcfd20 | 279 | /* Only set up the completion port and thread if we're not just |
ecc314ba | 280 | * querying the device size */ |
40c5db35 | 281 | if (!rc && td->io_ops->data != NULL) { |
ecc314ba | 282 | struct thread_ctx *ctx; |
40c5db35 | 283 | struct windowsaio_data *wd; |
ecc314ba | 284 | |
40c5db35 | 285 | hFile = CreateIoCompletionPort(f->hFile, NULL, 0, 0); |
ea4500d8 | 286 | |
40c5db35 | 287 | wd = td->io_ops->data; |
9b836561 | 288 | wd->iothread_running = TRUE; |
ecc314ba | 289 | |
9b836561 BC |
290 | if (!rc) { |
291 | ctx = malloc(sizeof(struct thread_ctx)); | |
292 | ctx->iocp = hFile; | |
293 | ctx->wd = wd; | |
294 | ||
295 | wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, NULL); | |
296 | } | |
ecc314ba | 297 | |
4e79098f | 298 | if (rc || wd->iothread == NULL) |
ecc314ba | 299 | rc = 1; |
ecc314ba BC |
300 | } |
301 | ||
ecc314ba BC |
302 | return rc; |
303 | } | |
304 | ||
305 | static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f) | |
306 | { | |
4e79098f | 307 | int rc = 0; |
1e42cc3d | 308 | |
9b836561 BC |
309 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
310 | ||
ecc314ba | 311 | if (f->hFile != INVALID_HANDLE_VALUE) { |
9b836561 | 312 | if (!CloseHandle(f->hFile)) |
4e79098f | 313 | rc = 1; |
ecc314ba BC |
314 | } |
315 | ||
316 | f->hFile = INVALID_HANDLE_VALUE; | |
4e79098f | 317 | return rc; |
ecc314ba BC |
318 | } |
319 | ||
67897036 BC |
320 | static BOOL timeout_expired(DWORD start_count, DWORD end_count) |
321 | { | |
322 | BOOL expired = FALSE; | |
323 | DWORD current_time; | |
324 | ||
325 | current_time = GetTickCount(); | |
326 | ||
327 | if ((end_count > start_count) && current_time >= end_count) | |
328 | expired = TRUE; | |
329 | else if (current_time < start_count && current_time > end_count) | |
330 | expired = TRUE; | |
331 | ||
332 | return expired; | |
333 | } | |
334 | ||
335 | static struct io_u* fio_windowsaio_event(struct thread_data *td, int event) | |
336 | { | |
337 | struct windowsaio_data *wd = td->io_ops->data; | |
338 | return wd->aio_events[event]; | |
339 | } | |
340 | ||
341 | static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min, | |
342 | unsigned int max, struct timespec *t) | |
343 | { | |
344 | struct windowsaio_data *wd = td->io_ops->data; | |
345 | struct flist_head *entry; | |
346 | unsigned int dequeued = 0; | |
347 | struct io_u *io_u; | |
348 | struct fio_overlapped *fov; | |
349 | DWORD start_count = 0; | |
350 | DWORD end_count = 0; | |
351 | DWORD status; | |
352 | DWORD mswait = 250; | |
353 | ||
354 | if (t != NULL) { | |
355 | mswait = (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
356 | start_count = GetTickCount(); | |
357 | end_count = start_count + (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
358 | } | |
359 | ||
360 | do { | |
361 | flist_for_each(entry, &td->io_u_busylist) { | |
362 | io_u = flist_entry(entry, struct io_u, list); | |
363 | fov = (struct fio_overlapped*)io_u->engine_data; | |
364 | ||
365 | if (fov->io_complete) { | |
40c5db35 | 366 | fov->io_complete = FALSE; |
67897036 | 367 | fov->io_free = TRUE; |
f9a58c2a | 368 | ResetEvent(fov->o.hEvent); |
67897036 BC |
369 | wd->aio_events[dequeued] = io_u; |
370 | dequeued++; | |
371 | } | |
372 | ||
373 | if (dequeued >= min) | |
374 | break; | |
375 | } | |
376 | ||
40c5db35 | 377 | if (dequeued < min) { |
67897036 | 378 | status = WaitForSingleObject(wd->iocomplete_event, mswait); |
f9a58c2a | 379 | if (status != WAIT_OBJECT_0 && dequeued >= min) |
67897036 BC |
380 | break; |
381 | } | |
382 | ||
383 | if (dequeued >= min || (t != NULL && timeout_expired(start_count, end_count))) | |
384 | break; | |
385 | } while (1); | |
386 | ||
387 | return dequeued; | |
388 | } | |
389 | ||
40c5db35 | 390 | static int fio_windowsaio_queue(struct thread_data *td, struct io_u *io_u) |
67897036 | 391 | { |
1e42cc3d | 392 | LPOVERLAPPED lpOvl = NULL; |
67897036 BC |
393 | struct windowsaio_data *wd; |
394 | DWORD iobytes; | |
93bcfd20 | 395 | BOOL success = FALSE; |
67897036 BC |
396 | int index; |
397 | int rc = FIO_Q_COMPLETED; | |
398 | ||
399 | fio_ro_check(td, io_u); | |
400 | ||
401 | wd = td->io_ops->data; | |
402 | ||
1e42cc3d | 403 | for (index = 0; index < td->o.iodepth; index++) { |
f9a58c2a | 404 | if (wd->ovls[index].io_free) |
1e42cc3d | 405 | break; |
1e42cc3d | 406 | } |
67897036 | 407 | |
1e42cc3d | 408 | assert(index < td->o.iodepth); |
67897036 | 409 | |
f9a58c2a | 410 | wd->ovls[index].io_free = FALSE; |
1e42cc3d | 411 | wd->ovls[index].io_u = io_u; |
f9a58c2a | 412 | lpOvl = &wd->ovls[index].o; |
4e79098f BC |
413 | lpOvl->Internal = STATUS_PENDING; |
414 | lpOvl->InternalHigh = 0; | |
415 | lpOvl->Offset = io_u->offset & 0xFFFFFFFF; | |
416 | lpOvl->OffsetHigh = io_u->offset >> 32; | |
1e42cc3d | 417 | io_u->engine_data = &wd->ovls[index]; |
67897036 BC |
418 | |
419 | switch (io_u->ddir) { | |
40c5db35 | 420 | case DDIR_WRITE: |
67897036 BC |
421 | success = WriteFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); |
422 | break; | |
423 | case DDIR_READ: | |
424 | success = ReadFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); | |
425 | break; | |
426 | case DDIR_SYNC: | |
427 | case DDIR_DATASYNC: | |
428 | case DDIR_SYNC_FILE_RANGE: | |
429 | success = FlushFileBuffers(io_u->file->hFile); | |
430 | if (!success) | |
66c098b8 | 431 | io_u->error = win_to_poxix_error(GetLastError()); |
67897036 BC |
432 | |
433 | return FIO_Q_COMPLETED; | |
434 | break; | |
435 | case DDIR_TRIM: | |
436 | log_err("manual TRIM isn't supported on Windows"); | |
437 | io_u->error = 1; | |
438 | io_u->resid = io_u->xfer_buflen; | |
439 | return FIO_Q_COMPLETED; | |
440 | break; | |
441 | default: | |
442 | assert(0); | |
93bcfd20 | 443 | break; |
67897036 BC |
444 | } |
445 | ||
40c5db35 | 446 | if (success || GetLastError() == ERROR_IO_PENDING) |
67897036 | 447 | rc = FIO_Q_QUEUED; |
40c5db35 | 448 | else { |
66c098b8 | 449 | io_u->error = win_to_poxix_error(GetLastError()); |
67897036 BC |
450 | io_u->resid = io_u->xfer_buflen; |
451 | } | |
452 | ||
453 | return rc; | |
454 | } | |
455 | ||
456 | /* Runs as a thread and waits for queued IO to complete */ | |
457 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter) | |
458 | { | |
459 | OVERLAPPED *ovl; | |
460 | struct fio_overlapped *fov; | |
461 | struct io_u *io_u; | |
462 | struct windowsaio_data *wd; | |
463 | struct thread_ctx *ctx; | |
464 | ULONG_PTR ulKey = 0; | |
465 | DWORD bytes; | |
466 | ||
467 | ctx = (struct thread_ctx*)lpParameter; | |
468 | wd = ctx->wd; | |
469 | ||
470 | do { | |
66c098b8 | 471 | if (!GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey, &ovl, 250) && ovl == NULL) |
67897036 BC |
472 | continue; |
473 | ||
474 | fov = CONTAINING_RECORD(ovl, struct fio_overlapped, o); | |
475 | io_u = fov->io_u; | |
476 | ||
477 | if (ovl->Internal == ERROR_SUCCESS) { | |
478 | io_u->resid = io_u->xfer_buflen - ovl->InternalHigh; | |
479 | io_u->error = 0; | |
480 | } else { | |
481 | io_u->resid = io_u->xfer_buflen; | |
66c098b8 | 482 | io_u->error = win_to_poxix_error(GetLastError()); |
67897036 BC |
483 | } |
484 | ||
40c5db35 | 485 | fov->io_complete = TRUE; |
67897036 BC |
486 | SetEvent(wd->iocomplete_event); |
487 | } while (ctx->wd->iothread_running); | |
488 | ||
489 | CloseHandle(ctx->iocp); | |
490 | free(ctx); | |
491 | return 0; | |
492 | } | |
493 | ||
494 | static int fio_windowsaio_cancel(struct thread_data *td, | |
495 | struct io_u *io_u) | |
496 | { | |
497 | int rc = 0; | |
498 | ||
499 | struct windowsaio_data *wd = td->io_ops->data; | |
500 | ||
501 | /* If we're running on Vista or newer, we can cancel individual IO requests */ | |
502 | if (wd->pCancelIoEx != NULL) { | |
503 | struct fio_overlapped *ovl = io_u->engine_data; | |
40c5db35 | 504 | |
67897036 BC |
505 | if (!wd->pCancelIoEx(io_u->file->hFile, &ovl->o)) |
506 | rc = 1; | |
507 | } else | |
508 | rc = 1; | |
509 | ||
510 | return rc; | |
511 | } | |
512 | ||
ecc314ba BC |
513 | static struct ioengine_ops ioengine = { |
514 | .name = "windowsaio", | |
515 | .version = FIO_IOOPS_VERSION, | |
516 | .init = fio_windowsaio_init, | |
517 | .queue = fio_windowsaio_queue, | |
518 | .cancel = fio_windowsaio_cancel, | |
519 | .getevents = fio_windowsaio_getevents, | |
520 | .event = fio_windowsaio_event, | |
521 | .cleanup = fio_windowsaio_cleanup, | |
522 | .open_file = fio_windowsaio_open_file, | |
523 | .close_file = fio_windowsaio_close_file, | |
524 | .get_file_size = generic_get_file_size | |
525 | }; | |
526 | ||
527 | static void fio_init fio_posixaio_register(void) | |
528 | { | |
529 | register_ioengine(&ioengine); | |
530 | } | |
531 | ||
532 | static void fio_exit fio_posixaio_unregister(void) | |
533 | { | |
534 | unregister_ioengine(&ioengine); | |
535 | } |