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 | |
ecc314ba BC |
129 | static int fio_windowsaio_init(struct thread_data *td) |
130 | { | |
ecc314ba | 131 | struct windowsaio_data *wd; |
ea4500d8 | 132 | HANDLE hKernel32Dll; |
9b836561 | 133 | int rc = 0; |
ecc314ba | 134 | |
ecc314ba | 135 | wd = malloc(sizeof(struct windowsaio_data)); |
9b836561 BC |
136 | if (wd != NULL) |
137 | ZeroMemory(wd, sizeof(struct windowsaio_data)); | |
138 | else | |
139 | rc = 1; | |
ecc314ba | 140 | |
9b836561 BC |
141 | if (!rc) { |
142 | wd->aio_events = malloc(td->o.iodepth * sizeof(struct io_u*)); | |
143 | if (wd->aio_events == NULL) | |
144 | rc = 1; | |
e4db9fec BC |
145 | } |
146 | ||
9b836561 BC |
147 | if (!rc) { |
148 | /* Create an auto-reset event */ | |
149 | wd->iocomplete_event = CreateEvent(NULL, FALSE, FALSE, NULL); | |
150 | if (wd->iocomplete_event == NULL) | |
151 | rc = 1; | |
152 | } | |
153 | ||
9b836561 | 154 | if (rc) { |
9b836561 | 155 | if (wd != NULL) { |
9b836561 BC |
156 | if (wd->aio_events != NULL) |
157 | free(wd->aio_events); | |
158 | ||
159 | free(wd); | |
160 | } | |
161 | } | |
ecc314ba | 162 | |
ea4500d8 | 163 | hKernel32Dll = GetModuleHandle("kernel32.dll"); |
93bcfd20 | 164 | wd->pCancelIoEx = (CANCELIOEX)GetProcAddress(hKernel32Dll, "CancelIoEx"); |
ecc314ba | 165 | td->io_ops->data = wd; |
93bcfd20 | 166 | |
5a90bb5f BC |
167 | |
168 | if (!rc) { | |
169 | struct thread_ctx *ctx; | |
170 | struct windowsaio_data *wd; | |
171 | HANDLE hFile; | |
172 | ||
173 | hFile = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0); | |
174 | if (hFile == INVALID_HANDLE_VALUE) | |
175 | rc = 1; | |
176 | ||
177 | wd = td->io_ops->data; | |
178 | wd->iothread_running = TRUE; | |
179 | wd->iocp = hFile; | |
180 | ||
181 | if (!rc) | |
182 | ctx = malloc(sizeof(struct thread_ctx)); | |
183 | ||
184 | if (!rc && ctx == NULL) | |
185 | { | |
186 | log_err("fio: out of memory in windowsaio\n"); | |
187 | CloseHandle(hFile); | |
188 | rc = 1; | |
189 | } | |
190 | ||
191 | if (!rc) | |
192 | { | |
193 | ctx->iocp = hFile; | |
194 | ctx->wd = wd; | |
195 | wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, NULL); | |
196 | } | |
197 | ||
198 | if (rc || wd->iothread == NULL) | |
199 | rc = 1; | |
200 | } | |
201 | ||
4e79098f | 202 | return rc; |
ecc314ba BC |
203 | } |
204 | ||
67897036 BC |
205 | static void fio_windowsaio_cleanup(struct thread_data *td) |
206 | { | |
67897036 BC |
207 | struct windowsaio_data *wd; |
208 | ||
209 | wd = td->io_ops->data; | |
210 | ||
211 | if (wd != NULL) { | |
40c5db35 JA |
212 | wd->iothread_running = FALSE; |
213 | WaitForSingleObject(wd->iothread, INFINITE); | |
67897036 BC |
214 | |
215 | CloseHandle(wd->iothread); | |
216 | CloseHandle(wd->iocomplete_event); | |
217 | ||
67897036 | 218 | free(wd->aio_events); |
67897036 BC |
219 | free(wd); |
220 | ||
221 | td->io_ops->data = NULL; | |
222 | } | |
223 | } | |
224 | ||
225 | ||
ecc314ba BC |
226 | static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f) |
227 | { | |
228 | int rc = 0; | |
4e79098f | 229 | DWORD flags = FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_OVERLAPPED; |
ecc314ba BC |
230 | DWORD sharemode = FILE_SHARE_READ | FILE_SHARE_WRITE; |
231 | DWORD openmode = OPEN_ALWAYS; | |
232 | DWORD access; | |
233 | ||
234 | dprint(FD_FILE, "fd open %s\n", f->file_name); | |
235 | ||
ecc314ba BC |
236 | if (f->filetype == FIO_TYPE_PIPE) { |
237 | log_err("fio: windowsaio doesn't support pipes\n"); | |
238 | return 1; | |
239 | } | |
240 | ||
241 | if (!strcmp(f->file_name, "-")) { | |
242 | log_err("fio: can't read/write to stdin/out\n"); | |
243 | return 1; | |
244 | } | |
245 | ||
246 | if (td->o.odirect) | |
247 | flags |= FILE_FLAG_NO_BUFFERING; | |
248 | if (td->o.sync_io) | |
249 | flags |= FILE_FLAG_WRITE_THROUGH; | |
250 | ||
93bcfd20 BC |
251 | /* |
252 | * Inform Windows whether we're going to be doing sequential or | |
253 | * random io so it can tune the Cache Manager | |
254 | */ | |
ecc314ba | 255 | if (td->o.td_ddir == TD_DDIR_READ || |
ea4500d8 | 256 | td->o.td_ddir == TD_DDIR_WRITE) |
ecc314ba | 257 | flags |= FILE_FLAG_SEQUENTIAL_SCAN; |
ecc314ba | 258 | else |
ecc314ba | 259 | flags |= FILE_FLAG_RANDOM_ACCESS; |
ecc314ba | 260 | |
ea4500d8 | 261 | if (!td_write(td) || read_only) |
ecc314ba BC |
262 | access = GENERIC_READ; |
263 | else | |
264 | access = (GENERIC_READ | GENERIC_WRITE); | |
265 | ||
93bcfd20 | 266 | if (td->o.create_on_open) |
ecc314ba BC |
267 | openmode = OPEN_ALWAYS; |
268 | else | |
269 | openmode = OPEN_EXISTING; | |
270 | ||
271 | f->hFile = CreateFile(f->file_name, access, sharemode, | |
272 | NULL, openmode, flags, NULL); | |
273 | ||
4e79098f | 274 | if (f->hFile == INVALID_HANDLE_VALUE) |
ecc314ba | 275 | rc = 1; |
ecc314ba | 276 | |
93bcfd20 | 277 | /* Only set up the completion port and thread if we're not just |
ecc314ba | 278 | * querying the device size */ |
40c5db35 | 279 | if (!rc && td->io_ops->data != NULL) { |
40c5db35 | 280 | struct windowsaio_data *wd; |
ecc314ba | 281 | |
40c5db35 | 282 | wd = td->io_ops->data; |
ecc314ba | 283 | |
5a90bb5f | 284 | if (CreateIoCompletionPort(f->hFile, wd->iocp, 0, 0) == NULL) |
ecc314ba | 285 | rc = 1; |
ecc314ba BC |
286 | } |
287 | ||
ecc314ba BC |
288 | return rc; |
289 | } | |
290 | ||
291 | static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f) | |
292 | { | |
4e79098f | 293 | int rc = 0; |
1e42cc3d | 294 | |
9b836561 BC |
295 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
296 | ||
ecc314ba | 297 | if (f->hFile != INVALID_HANDLE_VALUE) { |
9b836561 | 298 | if (!CloseHandle(f->hFile)) |
4e79098f | 299 | rc = 1; |
ecc314ba BC |
300 | } |
301 | ||
302 | f->hFile = INVALID_HANDLE_VALUE; | |
4e79098f | 303 | return rc; |
ecc314ba BC |
304 | } |
305 | ||
67897036 BC |
306 | static BOOL timeout_expired(DWORD start_count, DWORD end_count) |
307 | { | |
308 | BOOL expired = FALSE; | |
309 | DWORD current_time; | |
310 | ||
311 | current_time = GetTickCount(); | |
312 | ||
313 | if ((end_count > start_count) && current_time >= end_count) | |
314 | expired = TRUE; | |
315 | else if (current_time < start_count && current_time > end_count) | |
316 | expired = TRUE; | |
317 | ||
318 | return expired; | |
319 | } | |
320 | ||
321 | static struct io_u* fio_windowsaio_event(struct thread_data *td, int event) | |
322 | { | |
323 | struct windowsaio_data *wd = td->io_ops->data; | |
324 | return wd->aio_events[event]; | |
325 | } | |
326 | ||
327 | static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min, | |
328 | unsigned int max, struct timespec *t) | |
329 | { | |
330 | struct windowsaio_data *wd = td->io_ops->data; | |
331 | struct flist_head *entry; | |
332 | unsigned int dequeued = 0; | |
333 | struct io_u *io_u; | |
334 | struct fio_overlapped *fov; | |
335 | DWORD start_count = 0; | |
336 | DWORD end_count = 0; | |
337 | DWORD status; | |
338 | DWORD mswait = 250; | |
339 | ||
340 | if (t != NULL) { | |
341 | mswait = (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
342 | start_count = GetTickCount(); | |
343 | end_count = start_count + (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
344 | } | |
345 | ||
346 | do { | |
347 | flist_for_each(entry, &td->io_u_busylist) { | |
348 | io_u = flist_entry(entry, struct io_u, list); | |
349 | fov = (struct fio_overlapped*)io_u->engine_data; | |
350 | ||
351 | if (fov->io_complete) { | |
40c5db35 | 352 | fov->io_complete = FALSE; |
f9a58c2a | 353 | ResetEvent(fov->o.hEvent); |
67897036 BC |
354 | wd->aio_events[dequeued] = io_u; |
355 | dequeued++; | |
356 | } | |
357 | ||
358 | if (dequeued >= min) | |
359 | break; | |
360 | } | |
361 | ||
40c5db35 | 362 | if (dequeued < min) { |
67897036 | 363 | status = WaitForSingleObject(wd->iocomplete_event, mswait); |
f9a58c2a | 364 | if (status != WAIT_OBJECT_0 && dequeued >= min) |
67897036 BC |
365 | break; |
366 | } | |
367 | ||
368 | if (dequeued >= min || (t != NULL && timeout_expired(start_count, end_count))) | |
369 | break; | |
370 | } while (1); | |
371 | ||
372 | return dequeued; | |
373 | } | |
374 | ||
40c5db35 | 375 | static int fio_windowsaio_queue(struct thread_data *td, struct io_u *io_u) |
67897036 | 376 | { |
c73ed246 JA |
377 | struct fio_overlapped *o = io_u->engine_data; |
378 | LPOVERLAPPED lpOvl = &o->o; | |
67897036 | 379 | DWORD iobytes; |
93bcfd20 | 380 | BOOL success = FALSE; |
67897036 BC |
381 | int rc = FIO_Q_COMPLETED; |
382 | ||
383 | fio_ro_check(td, io_u); | |
384 | ||
4e79098f BC |
385 | lpOvl->Internal = STATUS_PENDING; |
386 | lpOvl->InternalHigh = 0; | |
387 | lpOvl->Offset = io_u->offset & 0xFFFFFFFF; | |
388 | lpOvl->OffsetHigh = io_u->offset >> 32; | |
67897036 BC |
389 | |
390 | switch (io_u->ddir) { | |
40c5db35 | 391 | case DDIR_WRITE: |
67897036 BC |
392 | success = WriteFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); |
393 | break; | |
394 | case DDIR_READ: | |
395 | success = ReadFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); | |
396 | break; | |
397 | case DDIR_SYNC: | |
398 | case DDIR_DATASYNC: | |
399 | case DDIR_SYNC_FILE_RANGE: | |
400 | success = FlushFileBuffers(io_u->file->hFile); | |
401 | if (!success) | |
2277d5d5 | 402 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
403 | |
404 | return FIO_Q_COMPLETED; | |
405 | break; | |
406 | case DDIR_TRIM: | |
407 | log_err("manual TRIM isn't supported on Windows"); | |
408 | io_u->error = 1; | |
409 | io_u->resid = io_u->xfer_buflen; | |
410 | return FIO_Q_COMPLETED; | |
411 | break; | |
412 | default: | |
413 | assert(0); | |
93bcfd20 | 414 | break; |
67897036 BC |
415 | } |
416 | ||
40c5db35 | 417 | if (success || GetLastError() == ERROR_IO_PENDING) |
67897036 | 418 | rc = FIO_Q_QUEUED; |
40c5db35 | 419 | else { |
2277d5d5 | 420 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
421 | io_u->resid = io_u->xfer_buflen; |
422 | } | |
423 | ||
424 | return rc; | |
425 | } | |
426 | ||
427 | /* Runs as a thread and waits for queued IO to complete */ | |
428 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter) | |
429 | { | |
430 | OVERLAPPED *ovl; | |
431 | struct fio_overlapped *fov; | |
432 | struct io_u *io_u; | |
433 | struct windowsaio_data *wd; | |
434 | struct thread_ctx *ctx; | |
435 | ULONG_PTR ulKey = 0; | |
436 | DWORD bytes; | |
437 | ||
438 | ctx = (struct thread_ctx*)lpParameter; | |
439 | wd = ctx->wd; | |
440 | ||
441 | do { | |
66c098b8 | 442 | if (!GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey, &ovl, 250) && ovl == NULL) |
67897036 BC |
443 | continue; |
444 | ||
445 | fov = CONTAINING_RECORD(ovl, struct fio_overlapped, o); | |
446 | io_u = fov->io_u; | |
447 | ||
448 | if (ovl->Internal == ERROR_SUCCESS) { | |
449 | io_u->resid = io_u->xfer_buflen - ovl->InternalHigh; | |
450 | io_u->error = 0; | |
451 | } else { | |
452 | io_u->resid = io_u->xfer_buflen; | |
2277d5d5 | 453 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
454 | } |
455 | ||
40c5db35 | 456 | fov->io_complete = TRUE; |
67897036 BC |
457 | SetEvent(wd->iocomplete_event); |
458 | } while (ctx->wd->iothread_running); | |
459 | ||
460 | CloseHandle(ctx->iocp); | |
461 | free(ctx); | |
462 | return 0; | |
463 | } | |
464 | ||
465 | static int fio_windowsaio_cancel(struct thread_data *td, | |
466 | struct io_u *io_u) | |
467 | { | |
468 | int rc = 0; | |
469 | ||
470 | struct windowsaio_data *wd = td->io_ops->data; | |
471 | ||
472 | /* If we're running on Vista or newer, we can cancel individual IO requests */ | |
473 | if (wd->pCancelIoEx != NULL) { | |
474 | struct fio_overlapped *ovl = io_u->engine_data; | |
40c5db35 | 475 | |
67897036 BC |
476 | if (!wd->pCancelIoEx(io_u->file->hFile, &ovl->o)) |
477 | rc = 1; | |
478 | } else | |
479 | rc = 1; | |
480 | ||
481 | return rc; | |
482 | } | |
483 | ||
c73ed246 JA |
484 | static void fio_windowsaio_io_u_free(struct thread_data *td, struct io_u *io_u) |
485 | { | |
486 | struct fio_overlapped *o = io_u->engine_data; | |
487 | ||
488 | if (o) { | |
489 | CloseHandle(o->o.hEvent); | |
490 | io_u->engine_data = NULL; | |
491 | free(o); | |
492 | } | |
493 | } | |
494 | ||
495 | static int fio_windowsaio_io_u_init(struct thread_data *td, struct io_u *io_u) | |
496 | { | |
497 | struct fio_overlapped *o; | |
498 | ||
499 | o = malloc(sizeof(*o)); | |
b0106419 | 500 | o->io_complete = FALSE; |
c73ed246 JA |
501 | o->io_u = io_u; |
502 | o->o.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | |
503 | if (!o->o.hEvent) { | |
504 | free(o); | |
505 | return 1; | |
506 | } | |
507 | ||
508 | io_u->engine_data = o; | |
509 | return 0; | |
510 | } | |
511 | ||
ecc314ba BC |
512 | static struct ioengine_ops ioengine = { |
513 | .name = "windowsaio", | |
514 | .version = FIO_IOOPS_VERSION, | |
515 | .init = fio_windowsaio_init, | |
516 | .queue = fio_windowsaio_queue, | |
517 | .cancel = fio_windowsaio_cancel, | |
518 | .getevents = fio_windowsaio_getevents, | |
519 | .event = fio_windowsaio_event, | |
520 | .cleanup = fio_windowsaio_cleanup, | |
521 | .open_file = fio_windowsaio_open_file, | |
522 | .close_file = fio_windowsaio_close_file, | |
c73ed246 JA |
523 | .get_file_size = generic_get_file_size, |
524 | .io_u_init = fio_windowsaio_io_u_init, | |
525 | .io_u_free = fio_windowsaio_io_u_free, | |
ecc314ba BC |
526 | }; |
527 | ||
528 | static void fio_init fio_posixaio_register(void) | |
529 | { | |
530 | register_ioengine(&ioengine); | |
531 | } | |
532 | ||
533 | static void fio_exit fio_posixaio_unregister(void) | |
534 | { | |
535 | unregister_ioengine(&ioengine); | |
536 | } |