Commit | Line | Data |
---|---|---|
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; | |
67897036 | 23 | }; |
ecc314ba | 24 | |
9b836561 | 25 | struct windowsaio_data { |
9b836561 | 26 | struct io_u **aio_events; |
5a90bb5f | 27 | HANDLE iocp; |
67897036 | 28 | HANDLE iothread; |
9b836561 | 29 | HANDLE iocomplete_event; |
ea4500d8 | 30 | CANCELIOEX pCancelIoEx; |
67897036 | 31 | BOOL iothread_running; |
9b836561 BC |
32 | }; |
33 | ||
ecc314ba | 34 | struct thread_ctx { |
9b836561 | 35 | HANDLE iocp; |
ecc314ba BC |
36 | struct windowsaio_data *wd; |
37 | }; | |
38 | ||
ecc314ba BC |
39 | static int fio_windowsaio_cancel(struct thread_data *td, |
40 | struct io_u *io_u); | |
67897036 | 41 | static BOOL timeout_expired(DWORD start_count, DWORD end_count); |
ecc314ba BC |
42 | static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min, |
43 | unsigned int max, struct timespec *t); | |
44 | static struct io_u *fio_windowsaio_event(struct thread_data *td, int event); | |
45 | static int fio_windowsaio_queue(struct thread_data *td, | |
46 | struct io_u *io_u); | |
47 | static void fio_windowsaio_cleanup(struct thread_data *td); | |
48 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter); | |
49 | static int fio_windowsaio_init(struct thread_data *td); | |
50 | static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f); | |
51 | static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f); | |
2277d5d5 | 52 | static int win_to_posix_error(DWORD winerr); |
66c098b8 | 53 | |
2277d5d5 | 54 | static int win_to_posix_error(DWORD winerr) |
66c098b8 BC |
55 | { |
56 | switch (winerr) | |
57 | { | |
58 | case ERROR_FILE_NOT_FOUND: return ENOENT; | |
59 | case ERROR_PATH_NOT_FOUND: return ENOENT; | |
60 | case ERROR_ACCESS_DENIED: return EACCES; | |
61 | case ERROR_INVALID_HANDLE: return EBADF; | |
62 | case ERROR_NOT_ENOUGH_MEMORY: return ENOMEM; | |
63 | case ERROR_INVALID_DATA: return EINVAL; | |
64 | case ERROR_OUTOFMEMORY: return ENOMEM; | |
65 | case ERROR_INVALID_DRIVE: return ENODEV; | |
66 | case ERROR_NOT_SAME_DEVICE: return EXDEV; | |
67 | case ERROR_WRITE_PROTECT: return EROFS; | |
68 | case ERROR_BAD_UNIT: return ENODEV; | |
69 | case ERROR_SHARING_VIOLATION: return EACCES; | |
70 | case ERROR_LOCK_VIOLATION: return EACCES; | |
71 | case ERROR_SHARING_BUFFER_EXCEEDED: return ENOLCK; | |
72 | case ERROR_HANDLE_DISK_FULL: return ENOSPC; | |
73 | case ERROR_NOT_SUPPORTED: return ENOSYS; | |
74 | case ERROR_FILE_EXISTS: return EEXIST; | |
75 | case ERROR_CANNOT_MAKE: return EPERM; | |
76 | case ERROR_INVALID_PARAMETER: return EINVAL; | |
77 | case ERROR_NO_PROC_SLOTS: return EAGAIN; | |
78 | case ERROR_BROKEN_PIPE: return EPIPE; | |
79 | case ERROR_OPEN_FAILED: return EIO; | |
80 | case ERROR_NO_MORE_SEARCH_HANDLES: return ENFILE; | |
81 | case ERROR_CALL_NOT_IMPLEMENTED: return ENOSYS; | |
82 | case ERROR_INVALID_NAME: return ENOENT; | |
83 | case ERROR_WAIT_NO_CHILDREN: return ECHILD; | |
84 | case ERROR_CHILD_NOT_COMPLETE: return EBUSY; | |
85 | case ERROR_DIR_NOT_EMPTY: return ENOTEMPTY; | |
86 | case ERROR_SIGNAL_REFUSED: return EIO; | |
87 | case ERROR_BAD_PATHNAME: return ENOENT; | |
88 | case ERROR_SIGNAL_PENDING: return EBUSY; | |
89 | case ERROR_MAX_THRDS_REACHED: return EAGAIN; | |
90 | case ERROR_BUSY: return EBUSY; | |
91 | case ERROR_ALREADY_EXISTS: return EEXIST; | |
92 | case ERROR_NO_SIGNAL_SENT: return EIO; | |
93 | case ERROR_FILENAME_EXCED_RANGE: return EINVAL; | |
94 | case ERROR_META_EXPANSION_TOO_LONG: return EINVAL; | |
95 | case ERROR_INVALID_SIGNAL_NUMBER: return EINVAL; | |
96 | case ERROR_THREAD_1_INACTIVE: return EINVAL; | |
97 | case ERROR_BAD_PIPE: return EINVAL; | |
98 | case ERROR_PIPE_BUSY: return EBUSY; | |
99 | case ERROR_NO_DATA: return EPIPE; | |
100 | case ERROR_MORE_DATA: return EAGAIN; | |
101 | case ERROR_DIRECTORY: return ENOTDIR; | |
102 | case ERROR_PIPE_CONNECTED: return EBUSY; | |
103 | case ERROR_NO_TOKEN: return EINVAL; | |
104 | case ERROR_PROCESS_ABORTED: return EFAULT; | |
105 | case ERROR_BAD_DEVICE: return ENODEV; | |
106 | case ERROR_BAD_USERNAME: return EINVAL; | |
107 | case ERROR_OPEN_FILES: return EAGAIN; | |
108 | case ERROR_ACTIVE_CONNECTIONS: return EAGAIN; | |
109 | case ERROR_DEVICE_IN_USE: return EAGAIN; | |
110 | case ERROR_INVALID_AT_INTERRUPT_TIME: return EINTR; | |
111 | case ERROR_IO_DEVICE: return EIO; | |
112 | case ERROR_NOT_OWNER: return EPERM; | |
113 | case ERROR_END_OF_MEDIA: return ENOSPC; | |
114 | case ERROR_EOM_OVERFLOW: return ENOSPC; | |
115 | case ERROR_BEGINNING_OF_MEDIA: return ESPIPE; | |
116 | case ERROR_SETMARK_DETECTED: return ESPIPE; | |
117 | case ERROR_NO_DATA_DETECTED: return ENOSPC; | |
118 | case ERROR_POSSIBLE_DEADLOCK: return EDEADLOCK; | |
119 | case ERROR_CRC: return EIO; | |
120 | case ERROR_NEGATIVE_SEEK: return EINVAL; | |
121 | case ERROR_DISK_FULL: return ENOSPC; | |
122 | case ERROR_NOACCESS: return EFAULT; | |
123 | case ERROR_FILE_INVALID: return ENXIO; | |
124 | } | |
125 | ||
126 | return winerr; | |
127 | } | |
ecc314ba | 128 | |
9b836561 BC |
129 | int sync_file_range(int fd, off64_t offset, off64_t nbytes, |
130 | unsigned int flags) | |
131 | { | |
132 | errno = ENOSYS; | |
133 | return -1; | |
134 | } | |
135 | ||
ecc314ba BC |
136 | static int fio_windowsaio_init(struct thread_data *td) |
137 | { | |
ecc314ba | 138 | struct windowsaio_data *wd; |
ea4500d8 | 139 | HANDLE hKernel32Dll; |
9b836561 | 140 | int rc = 0; |
ecc314ba | 141 | |
ecc314ba | 142 | wd = malloc(sizeof(struct windowsaio_data)); |
9b836561 BC |
143 | if (wd != NULL) |
144 | ZeroMemory(wd, sizeof(struct windowsaio_data)); | |
145 | else | |
146 | rc = 1; | |
ecc314ba | 147 | |
9b836561 BC |
148 | if (!rc) { |
149 | wd->aio_events = malloc(td->o.iodepth * sizeof(struct io_u*)); | |
150 | if (wd->aio_events == NULL) | |
151 | rc = 1; | |
e4db9fec BC |
152 | } |
153 | ||
9b836561 BC |
154 | if (!rc) { |
155 | /* Create an auto-reset event */ | |
156 | wd->iocomplete_event = CreateEvent(NULL, FALSE, FALSE, NULL); | |
157 | if (wd->iocomplete_event == NULL) | |
158 | rc = 1; | |
159 | } | |
160 | ||
9b836561 | 161 | if (rc) { |
9b836561 | 162 | if (wd != NULL) { |
9b836561 BC |
163 | if (wd->aio_events != NULL) |
164 | free(wd->aio_events); | |
165 | ||
166 | free(wd); | |
167 | } | |
168 | } | |
ecc314ba | 169 | |
ea4500d8 | 170 | hKernel32Dll = GetModuleHandle("kernel32.dll"); |
93bcfd20 | 171 | wd->pCancelIoEx = (CANCELIOEX)GetProcAddress(hKernel32Dll, "CancelIoEx"); |
ecc314ba | 172 | td->io_ops->data = wd; |
93bcfd20 | 173 | |
5a90bb5f BC |
174 | |
175 | if (!rc) { | |
176 | struct thread_ctx *ctx; | |
177 | struct windowsaio_data *wd; | |
178 | HANDLE hFile; | |
179 | ||
180 | hFile = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0); | |
181 | if (hFile == INVALID_HANDLE_VALUE) | |
182 | rc = 1; | |
183 | ||
184 | wd = td->io_ops->data; | |
185 | wd->iothread_running = TRUE; | |
186 | wd->iocp = hFile; | |
187 | ||
188 | if (!rc) | |
189 | ctx = malloc(sizeof(struct thread_ctx)); | |
190 | ||
191 | if (!rc && ctx == NULL) | |
192 | { | |
193 | log_err("fio: out of memory in windowsaio\n"); | |
194 | CloseHandle(hFile); | |
195 | rc = 1; | |
196 | } | |
197 | ||
198 | if (!rc) | |
199 | { | |
200 | ctx->iocp = hFile; | |
201 | ctx->wd = wd; | |
202 | wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, NULL); | |
203 | } | |
204 | ||
205 | if (rc || wd->iothread == NULL) | |
206 | rc = 1; | |
207 | } | |
208 | ||
4e79098f | 209 | return rc; |
ecc314ba BC |
210 | } |
211 | ||
67897036 BC |
212 | static void fio_windowsaio_cleanup(struct thread_data *td) |
213 | { | |
67897036 BC |
214 | struct windowsaio_data *wd; |
215 | ||
216 | wd = td->io_ops->data; | |
217 | ||
218 | if (wd != NULL) { | |
40c5db35 JA |
219 | wd->iothread_running = FALSE; |
220 | WaitForSingleObject(wd->iothread, INFINITE); | |
67897036 BC |
221 | |
222 | CloseHandle(wd->iothread); | |
223 | CloseHandle(wd->iocomplete_event); | |
224 | ||
67897036 | 225 | free(wd->aio_events); |
67897036 BC |
226 | free(wd); |
227 | ||
228 | td->io_ops->data = NULL; | |
229 | } | |
230 | } | |
231 | ||
232 | ||
ecc314ba BC |
233 | static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f) |
234 | { | |
235 | int rc = 0; | |
4e79098f | 236 | DWORD flags = FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_OVERLAPPED; |
ecc314ba BC |
237 | DWORD sharemode = FILE_SHARE_READ | FILE_SHARE_WRITE; |
238 | DWORD openmode = OPEN_ALWAYS; | |
239 | DWORD access; | |
240 | ||
241 | dprint(FD_FILE, "fd open %s\n", f->file_name); | |
242 | ||
ecc314ba BC |
243 | if (f->filetype == FIO_TYPE_PIPE) { |
244 | log_err("fio: windowsaio doesn't support pipes\n"); | |
245 | return 1; | |
246 | } | |
247 | ||
248 | if (!strcmp(f->file_name, "-")) { | |
249 | log_err("fio: can't read/write to stdin/out\n"); | |
250 | return 1; | |
251 | } | |
252 | ||
253 | if (td->o.odirect) | |
254 | flags |= FILE_FLAG_NO_BUFFERING; | |
255 | if (td->o.sync_io) | |
256 | flags |= FILE_FLAG_WRITE_THROUGH; | |
257 | ||
93bcfd20 BC |
258 | /* |
259 | * Inform Windows whether we're going to be doing sequential or | |
260 | * random io so it can tune the Cache Manager | |
261 | */ | |
ecc314ba | 262 | if (td->o.td_ddir == TD_DDIR_READ || |
ea4500d8 | 263 | td->o.td_ddir == TD_DDIR_WRITE) |
ecc314ba | 264 | flags |= FILE_FLAG_SEQUENTIAL_SCAN; |
ecc314ba | 265 | else |
ecc314ba | 266 | flags |= FILE_FLAG_RANDOM_ACCESS; |
ecc314ba | 267 | |
ea4500d8 | 268 | if (!td_write(td) || read_only) |
ecc314ba BC |
269 | access = GENERIC_READ; |
270 | else | |
271 | access = (GENERIC_READ | GENERIC_WRITE); | |
272 | ||
93bcfd20 | 273 | if (td->o.create_on_open) |
ecc314ba BC |
274 | openmode = OPEN_ALWAYS; |
275 | else | |
276 | openmode = OPEN_EXISTING; | |
277 | ||
278 | f->hFile = CreateFile(f->file_name, access, sharemode, | |
279 | NULL, openmode, flags, NULL); | |
280 | ||
4e79098f | 281 | if (f->hFile == INVALID_HANDLE_VALUE) |
ecc314ba | 282 | rc = 1; |
ecc314ba | 283 | |
93bcfd20 | 284 | /* Only set up the completion port and thread if we're not just |
ecc314ba | 285 | * querying the device size */ |
40c5db35 | 286 | if (!rc && td->io_ops->data != NULL) { |
40c5db35 | 287 | struct windowsaio_data *wd; |
ecc314ba | 288 | |
40c5db35 | 289 | wd = td->io_ops->data; |
ecc314ba | 290 | |
5a90bb5f | 291 | if (CreateIoCompletionPort(f->hFile, wd->iocp, 0, 0) == NULL) |
ecc314ba | 292 | rc = 1; |
ecc314ba BC |
293 | } |
294 | ||
ecc314ba BC |
295 | return rc; |
296 | } | |
297 | ||
298 | static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f) | |
299 | { | |
4e79098f | 300 | int rc = 0; |
1e42cc3d | 301 | |
9b836561 BC |
302 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
303 | ||
ecc314ba | 304 | if (f->hFile != INVALID_HANDLE_VALUE) { |
9b836561 | 305 | if (!CloseHandle(f->hFile)) |
4e79098f | 306 | rc = 1; |
ecc314ba BC |
307 | } |
308 | ||
309 | f->hFile = INVALID_HANDLE_VALUE; | |
4e79098f | 310 | return rc; |
ecc314ba BC |
311 | } |
312 | ||
67897036 BC |
313 | static BOOL timeout_expired(DWORD start_count, DWORD end_count) |
314 | { | |
315 | BOOL expired = FALSE; | |
316 | DWORD current_time; | |
317 | ||
318 | current_time = GetTickCount(); | |
319 | ||
320 | if ((end_count > start_count) && current_time >= end_count) | |
321 | expired = TRUE; | |
322 | else if (current_time < start_count && current_time > end_count) | |
323 | expired = TRUE; | |
324 | ||
325 | return expired; | |
326 | } | |
327 | ||
328 | static struct io_u* fio_windowsaio_event(struct thread_data *td, int event) | |
329 | { | |
330 | struct windowsaio_data *wd = td->io_ops->data; | |
331 | return wd->aio_events[event]; | |
332 | } | |
333 | ||
334 | static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min, | |
335 | unsigned int max, struct timespec *t) | |
336 | { | |
337 | struct windowsaio_data *wd = td->io_ops->data; | |
338 | struct flist_head *entry; | |
339 | unsigned int dequeued = 0; | |
340 | struct io_u *io_u; | |
341 | struct fio_overlapped *fov; | |
342 | DWORD start_count = 0; | |
343 | DWORD end_count = 0; | |
344 | DWORD status; | |
345 | DWORD mswait = 250; | |
346 | ||
347 | if (t != NULL) { | |
348 | mswait = (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
349 | start_count = GetTickCount(); | |
350 | end_count = start_count + (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
351 | } | |
352 | ||
353 | do { | |
354 | flist_for_each(entry, &td->io_u_busylist) { | |
355 | io_u = flist_entry(entry, struct io_u, list); | |
356 | fov = (struct fio_overlapped*)io_u->engine_data; | |
357 | ||
358 | if (fov->io_complete) { | |
40c5db35 | 359 | fov->io_complete = FALSE; |
f9a58c2a | 360 | ResetEvent(fov->o.hEvent); |
67897036 BC |
361 | wd->aio_events[dequeued] = io_u; |
362 | dequeued++; | |
363 | } | |
364 | ||
365 | if (dequeued >= min) | |
366 | break; | |
367 | } | |
368 | ||
40c5db35 | 369 | if (dequeued < min) { |
67897036 | 370 | status = WaitForSingleObject(wd->iocomplete_event, mswait); |
f9a58c2a | 371 | if (status != WAIT_OBJECT_0 && dequeued >= min) |
67897036 BC |
372 | break; |
373 | } | |
374 | ||
375 | if (dequeued >= min || (t != NULL && timeout_expired(start_count, end_count))) | |
376 | break; | |
377 | } while (1); | |
378 | ||
379 | return dequeued; | |
380 | } | |
381 | ||
40c5db35 | 382 | static int fio_windowsaio_queue(struct thread_data *td, struct io_u *io_u) |
67897036 | 383 | { |
c73ed246 JA |
384 | struct fio_overlapped *o = io_u->engine_data; |
385 | LPOVERLAPPED lpOvl = &o->o; | |
67897036 | 386 | DWORD iobytes; |
93bcfd20 | 387 | BOOL success = FALSE; |
67897036 BC |
388 | int rc = FIO_Q_COMPLETED; |
389 | ||
390 | fio_ro_check(td, io_u); | |
391 | ||
4e79098f BC |
392 | lpOvl->Internal = STATUS_PENDING; |
393 | lpOvl->InternalHigh = 0; | |
394 | lpOvl->Offset = io_u->offset & 0xFFFFFFFF; | |
395 | lpOvl->OffsetHigh = io_u->offset >> 32; | |
67897036 BC |
396 | |
397 | switch (io_u->ddir) { | |
40c5db35 | 398 | case DDIR_WRITE: |
67897036 BC |
399 | success = WriteFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); |
400 | break; | |
401 | case DDIR_READ: | |
402 | success = ReadFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); | |
403 | break; | |
404 | case DDIR_SYNC: | |
405 | case DDIR_DATASYNC: | |
406 | case DDIR_SYNC_FILE_RANGE: | |
407 | success = FlushFileBuffers(io_u->file->hFile); | |
408 | if (!success) | |
2277d5d5 | 409 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
410 | |
411 | return FIO_Q_COMPLETED; | |
412 | break; | |
413 | case DDIR_TRIM: | |
414 | log_err("manual TRIM isn't supported on Windows"); | |
415 | io_u->error = 1; | |
416 | io_u->resid = io_u->xfer_buflen; | |
417 | return FIO_Q_COMPLETED; | |
418 | break; | |
419 | default: | |
420 | assert(0); | |
93bcfd20 | 421 | break; |
67897036 BC |
422 | } |
423 | ||
40c5db35 | 424 | if (success || GetLastError() == ERROR_IO_PENDING) |
67897036 | 425 | rc = FIO_Q_QUEUED; |
40c5db35 | 426 | else { |
2277d5d5 | 427 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
428 | io_u->resid = io_u->xfer_buflen; |
429 | } | |
430 | ||
431 | return rc; | |
432 | } | |
433 | ||
434 | /* Runs as a thread and waits for queued IO to complete */ | |
435 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter) | |
436 | { | |
437 | OVERLAPPED *ovl; | |
438 | struct fio_overlapped *fov; | |
439 | struct io_u *io_u; | |
440 | struct windowsaio_data *wd; | |
441 | struct thread_ctx *ctx; | |
442 | ULONG_PTR ulKey = 0; | |
443 | DWORD bytes; | |
444 | ||
445 | ctx = (struct thread_ctx*)lpParameter; | |
446 | wd = ctx->wd; | |
447 | ||
448 | do { | |
66c098b8 | 449 | if (!GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey, &ovl, 250) && ovl == NULL) |
67897036 BC |
450 | continue; |
451 | ||
452 | fov = CONTAINING_RECORD(ovl, struct fio_overlapped, o); | |
453 | io_u = fov->io_u; | |
454 | ||
455 | if (ovl->Internal == ERROR_SUCCESS) { | |
456 | io_u->resid = io_u->xfer_buflen - ovl->InternalHigh; | |
457 | io_u->error = 0; | |
458 | } else { | |
459 | io_u->resid = io_u->xfer_buflen; | |
2277d5d5 | 460 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
461 | } |
462 | ||
40c5db35 | 463 | fov->io_complete = TRUE; |
67897036 BC |
464 | SetEvent(wd->iocomplete_event); |
465 | } while (ctx->wd->iothread_running); | |
466 | ||
467 | CloseHandle(ctx->iocp); | |
468 | free(ctx); | |
469 | return 0; | |
470 | } | |
471 | ||
472 | static int fio_windowsaio_cancel(struct thread_data *td, | |
473 | struct io_u *io_u) | |
474 | { | |
475 | int rc = 0; | |
476 | ||
477 | struct windowsaio_data *wd = td->io_ops->data; | |
478 | ||
479 | /* If we're running on Vista or newer, we can cancel individual IO requests */ | |
480 | if (wd->pCancelIoEx != NULL) { | |
481 | struct fio_overlapped *ovl = io_u->engine_data; | |
40c5db35 | 482 | |
67897036 BC |
483 | if (!wd->pCancelIoEx(io_u->file->hFile, &ovl->o)) |
484 | rc = 1; | |
485 | } else | |
486 | rc = 1; | |
487 | ||
488 | return rc; | |
489 | } | |
490 | ||
c73ed246 JA |
491 | static void fio_windowsaio_io_u_free(struct thread_data *td, struct io_u *io_u) |
492 | { | |
493 | struct fio_overlapped *o = io_u->engine_data; | |
494 | ||
495 | if (o) { | |
496 | CloseHandle(o->o.hEvent); | |
497 | io_u->engine_data = NULL; | |
498 | free(o); | |
499 | } | |
500 | } | |
501 | ||
502 | static int fio_windowsaio_io_u_init(struct thread_data *td, struct io_u *io_u) | |
503 | { | |
504 | struct fio_overlapped *o; | |
505 | ||
506 | o = malloc(sizeof(*o)); | |
b0106419 | 507 | o->io_complete = FALSE; |
c73ed246 JA |
508 | o->io_u = io_u; |
509 | o->o.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | |
510 | if (!o->o.hEvent) { | |
511 | free(o); | |
512 | return 1; | |
513 | } | |
514 | ||
515 | io_u->engine_data = o; | |
516 | return 0; | |
517 | } | |
518 | ||
ecc314ba BC |
519 | static struct ioengine_ops ioengine = { |
520 | .name = "windowsaio", | |
521 | .version = FIO_IOOPS_VERSION, | |
522 | .init = fio_windowsaio_init, | |
523 | .queue = fio_windowsaio_queue, | |
524 | .cancel = fio_windowsaio_cancel, | |
525 | .getevents = fio_windowsaio_getevents, | |
526 | .event = fio_windowsaio_event, | |
527 | .cleanup = fio_windowsaio_cleanup, | |
528 | .open_file = fio_windowsaio_open_file, | |
529 | .close_file = fio_windowsaio_close_file, | |
c73ed246 JA |
530 | .get_file_size = generic_get_file_size, |
531 | .io_u_init = fio_windowsaio_io_u_init, | |
532 | .io_u_free = fio_windowsaio_io_u_free, | |
ecc314ba BC |
533 | }; |
534 | ||
535 | static void fio_init fio_posixaio_register(void) | |
536 | { | |
537 | register_ioengine(&ioengine); | |
538 | } | |
539 | ||
540 | static void fio_exit fio_posixaio_unregister(void) | |
541 | { | |
542 | unregister_ioengine(&ioengine); | |
543 | } |