Commit | Line | Data |
---|---|---|
ecc314ba | 1 | /* |
03244c19 BC |
2 | * windowsaio engine |
3 | * | |
4 | * IO engine using Windows IO Completion Ports. | |
ecc314ba BC |
5 | */ |
6 | ||
ecc314ba BC |
7 | #include <stdio.h> |
8 | #include <stdlib.h> | |
9 | #include <unistd.h> | |
10 | #include <signal.h> | |
11 | #include <errno.h> | |
12 | #include <windows.h> | |
13 | ||
14 | #include "../fio.h" | |
15 | ||
ea4500d8 BC |
16 | typedef BOOL (WINAPI *CANCELIOEX)(HANDLE hFile, LPOVERLAPPED lpOverlapped); |
17 | ||
66c098b8 BC |
18 | int geterrno_from_win_error (DWORD code, int deferrno); |
19 | ||
67897036 BC |
20 | struct fio_overlapped { |
21 | OVERLAPPED o; | |
22 | struct io_u *io_u; | |
23 | BOOL io_complete; | |
67897036 | 24 | }; |
ecc314ba | 25 | |
9b836561 | 26 | struct windowsaio_data { |
9b836561 | 27 | struct io_u **aio_events; |
5a90bb5f | 28 | HANDLE iocp; |
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 | 40 | static int fio_windowsaio_cancel(struct thread_data *td, |
03244c19 | 41 | struct io_u *io_u); |
67897036 | 42 | static BOOL timeout_expired(DWORD start_count, DWORD end_count); |
ecc314ba | 43 | static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min, |
03244c19 | 44 | unsigned int max, struct timespec *t); |
ecc314ba BC |
45 | static struct io_u *fio_windowsaio_event(struct thread_data *td, int event); |
46 | static int fio_windowsaio_queue(struct thread_data *td, | |
03244c19 | 47 | struct io_u *io_u); |
ecc314ba BC |
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); | |
2277d5d5 | 53 | static int win_to_posix_error(DWORD winerr); |
66c098b8 | 54 | |
2277d5d5 | 55 | static int win_to_posix_error(DWORD winerr) |
66c098b8 BC |
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 | |
ecc314ba BC |
130 | static int fio_windowsaio_init(struct thread_data *td) |
131 | { | |
ecc314ba | 132 | struct windowsaio_data *wd; |
ea4500d8 | 133 | HANDLE hKernel32Dll; |
9b836561 | 134 | int rc = 0; |
ecc314ba | 135 | |
03244c19 BC |
136 | wd = calloc(1, sizeof(struct windowsaio_data)); |
137 | if (wd == NULL) { | |
138 | log_err("windowsaio: failed to allocate memory for engine data\n"); | |
9b836561 | 139 | rc = 1; |
03244c19 | 140 | } |
ecc314ba | 141 | |
9b836561 BC |
142 | if (!rc) { |
143 | wd->aio_events = malloc(td->o.iodepth * sizeof(struct io_u*)); | |
03244c19 BC |
144 | if (wd->aio_events == NULL) { |
145 | log_err("windowsaio: failed to allocate memory for aio events list\n"); | |
9b836561 | 146 | rc = 1; |
03244c19 | 147 | } |
e4db9fec BC |
148 | } |
149 | ||
9b836561 BC |
150 | if (!rc) { |
151 | /* Create an auto-reset event */ | |
152 | wd->iocomplete_event = CreateEvent(NULL, FALSE, FALSE, NULL); | |
03244c19 BC |
153 | if (wd->iocomplete_event == NULL) { |
154 | log_err("windowsaio: failed to create io complete event handle\n"); | |
9b836561 | 155 | rc = 1; |
03244c19 | 156 | } |
9b836561 BC |
157 | } |
158 | ||
9b836561 | 159 | if (rc) { |
9b836561 | 160 | if (wd != NULL) { |
9b836561 BC |
161 | if (wd->aio_events != NULL) |
162 | free(wd->aio_events); | |
163 | ||
164 | free(wd); | |
165 | } | |
166 | } | |
ecc314ba | 167 | |
ea4500d8 | 168 | hKernel32Dll = GetModuleHandle("kernel32.dll"); |
93bcfd20 | 169 | wd->pCancelIoEx = (CANCELIOEX)GetProcAddress(hKernel32Dll, "CancelIoEx"); |
ecc314ba | 170 | td->io_ops->data = wd; |
93bcfd20 | 171 | |
5a90bb5f BC |
172 | if (!rc) { |
173 | struct thread_ctx *ctx; | |
174 | struct windowsaio_data *wd; | |
175 | HANDLE hFile; | |
176 | ||
177 | hFile = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0); | |
03244c19 BC |
178 | if (hFile == INVALID_HANDLE_VALUE) { |
179 | log_err("windowsaio: failed to create io completion port\n"); | |
5a90bb5f | 180 | rc = 1; |
03244c19 | 181 | } |
5a90bb5f BC |
182 | |
183 | wd = td->io_ops->data; | |
184 | wd->iothread_running = TRUE; | |
185 | wd->iocp = hFile; | |
186 | ||
187 | if (!rc) | |
188 | ctx = malloc(sizeof(struct thread_ctx)); | |
189 | ||
190 | if (!rc && ctx == NULL) | |
191 | { | |
03244c19 | 192 | log_err("windowsaio: failed to allocate memory for thread context structure\n"); |
5a90bb5f BC |
193 | CloseHandle(hFile); |
194 | rc = 1; | |
195 | } | |
196 | ||
197 | if (!rc) | |
198 | { | |
199 | ctx->iocp = hFile; | |
200 | ctx->wd = wd; | |
201 | wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, NULL); | |
03244c19 BC |
202 | if (wd->iothread == NULL) |
203 | log_err("windowsaio: failed to create io completion thread\n"); | |
5a90bb5f BC |
204 | } |
205 | ||
206 | if (rc || wd->iothread == NULL) | |
207 | rc = 1; | |
208 | } | |
209 | ||
4e79098f | 210 | return rc; |
ecc314ba BC |
211 | } |
212 | ||
67897036 BC |
213 | static void fio_windowsaio_cleanup(struct thread_data *td) |
214 | { | |
67897036 BC |
215 | struct windowsaio_data *wd; |
216 | ||
217 | wd = td->io_ops->data; | |
218 | ||
219 | if (wd != NULL) { | |
40c5db35 JA |
220 | wd->iothread_running = FALSE; |
221 | WaitForSingleObject(wd->iothread, INFINITE); | |
67897036 BC |
222 | |
223 | CloseHandle(wd->iothread); | |
224 | CloseHandle(wd->iocomplete_event); | |
225 | ||
67897036 | 226 | free(wd->aio_events); |
67897036 BC |
227 | free(wd); |
228 | ||
229 | td->io_ops->data = NULL; | |
230 | } | |
231 | } | |
232 | ||
233 | ||
ecc314ba BC |
234 | static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f) |
235 | { | |
236 | int rc = 0; | |
4e79098f | 237 | DWORD flags = FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_OVERLAPPED; |
ecc314ba BC |
238 | DWORD sharemode = FILE_SHARE_READ | FILE_SHARE_WRITE; |
239 | DWORD openmode = OPEN_ALWAYS; | |
240 | DWORD access; | |
241 | ||
242 | dprint(FD_FILE, "fd open %s\n", f->file_name); | |
243 | ||
ecc314ba | 244 | if (f->filetype == FIO_TYPE_PIPE) { |
03244c19 | 245 | log_err("windowsaio: pipes are not supported\n"); |
ecc314ba BC |
246 | return 1; |
247 | } | |
248 | ||
249 | if (!strcmp(f->file_name, "-")) { | |
03244c19 | 250 | log_err("windowsaio: can't read/write to stdin/out\n"); |
ecc314ba BC |
251 | return 1; |
252 | } | |
253 | ||
254 | if (td->o.odirect) | |
255 | flags |= FILE_FLAG_NO_BUFFERING; | |
256 | if (td->o.sync_io) | |
257 | flags |= FILE_FLAG_WRITE_THROUGH; | |
258 | ||
93bcfd20 BC |
259 | /* |
260 | * Inform Windows whether we're going to be doing sequential or | |
261 | * random io so it can tune the Cache Manager | |
262 | */ | |
ecc314ba | 263 | if (td->o.td_ddir == TD_DDIR_READ || |
ea4500d8 | 264 | td->o.td_ddir == TD_DDIR_WRITE) |
ecc314ba | 265 | flags |= FILE_FLAG_SEQUENTIAL_SCAN; |
ecc314ba | 266 | else |
ecc314ba | 267 | flags |= FILE_FLAG_RANDOM_ACCESS; |
ecc314ba | 268 | |
ea4500d8 | 269 | if (!td_write(td) || read_only) |
ecc314ba BC |
270 | access = GENERIC_READ; |
271 | else | |
272 | access = (GENERIC_READ | GENERIC_WRITE); | |
273 | ||
93bcfd20 | 274 | if (td->o.create_on_open) |
ecc314ba BC |
275 | openmode = OPEN_ALWAYS; |
276 | else | |
277 | openmode = OPEN_EXISTING; | |
278 | ||
279 | f->hFile = CreateFile(f->file_name, access, sharemode, | |
280 | NULL, openmode, flags, NULL); | |
281 | ||
03244c19 BC |
282 | if (f->hFile == INVALID_HANDLE_VALUE) { |
283 | log_err("windowsaio: failed to open file \"%s\"\n", f->file_name); | |
ecc314ba | 284 | rc = 1; |
03244c19 | 285 | } |
ecc314ba | 286 | |
93bcfd20 | 287 | /* Only set up the completion port and thread if we're not just |
ecc314ba | 288 | * querying the device size */ |
40c5db35 | 289 | if (!rc && td->io_ops->data != NULL) { |
40c5db35 | 290 | struct windowsaio_data *wd; |
ecc314ba | 291 | |
40c5db35 | 292 | wd = td->io_ops->data; |
ecc314ba | 293 | |
03244c19 BC |
294 | if (CreateIoCompletionPort(f->hFile, wd->iocp, 0, 0) == NULL) { |
295 | log_err("windowsaio: failed to create io completion port\n"); | |
ecc314ba | 296 | rc = 1; |
03244c19 | 297 | } |
ecc314ba BC |
298 | } |
299 | ||
ecc314ba BC |
300 | return rc; |
301 | } | |
302 | ||
303 | static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f) | |
304 | { | |
4e79098f | 305 | int rc = 0; |
1e42cc3d | 306 | |
9b836561 BC |
307 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
308 | ||
ecc314ba | 309 | if (f->hFile != INVALID_HANDLE_VALUE) { |
03244c19 BC |
310 | if (!CloseHandle(f->hFile)) { |
311 | log_info("windowsaio: failed to close file handle for \"%s\"\n", f->file_name); | |
4e79098f | 312 | rc = 1; |
03244c19 | 313 | } |
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, | |
03244c19 | 342 | unsigned int max, struct timespec *t) |
67897036 BC |
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; |
f9a58c2a | 367 | ResetEvent(fov->o.hEvent); |
67897036 BC |
368 | wd->aio_events[dequeued] = io_u; |
369 | dequeued++; | |
370 | } | |
371 | ||
372 | if (dequeued >= min) | |
373 | break; | |
374 | } | |
375 | ||
40c5db35 | 376 | if (dequeued < min) { |
67897036 | 377 | status = WaitForSingleObject(wd->iocomplete_event, mswait); |
f9a58c2a | 378 | if (status != WAIT_OBJECT_0 && dequeued >= min) |
03244c19 | 379 | break; |
67897036 BC |
380 | } |
381 | ||
382 | if (dequeued >= min || (t != NULL && timeout_expired(start_count, end_count))) | |
383 | break; | |
384 | } while (1); | |
385 | ||
386 | return dequeued; | |
387 | } | |
388 | ||
40c5db35 | 389 | static int fio_windowsaio_queue(struct thread_data *td, struct io_u *io_u) |
67897036 | 390 | { |
c73ed246 JA |
391 | struct fio_overlapped *o = io_u->engine_data; |
392 | LPOVERLAPPED lpOvl = &o->o; | |
67897036 | 393 | DWORD iobytes; |
93bcfd20 | 394 | BOOL success = FALSE; |
67897036 BC |
395 | int rc = FIO_Q_COMPLETED; |
396 | ||
397 | fio_ro_check(td, io_u); | |
398 | ||
4e79098f BC |
399 | lpOvl->Internal = STATUS_PENDING; |
400 | lpOvl->InternalHigh = 0; | |
401 | lpOvl->Offset = io_u->offset & 0xFFFFFFFF; | |
402 | lpOvl->OffsetHigh = io_u->offset >> 32; | |
67897036 BC |
403 | |
404 | switch (io_u->ddir) { | |
40c5db35 | 405 | case DDIR_WRITE: |
67897036 BC |
406 | success = WriteFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); |
407 | break; | |
408 | case DDIR_READ: | |
409 | success = ReadFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, lpOvl); | |
410 | break; | |
411 | case DDIR_SYNC: | |
412 | case DDIR_DATASYNC: | |
413 | case DDIR_SYNC_FILE_RANGE: | |
414 | success = FlushFileBuffers(io_u->file->hFile); | |
03244c19 BC |
415 | if (!success) { |
416 | log_err("windowsaio: failed to flush file buffers\n"); | |
417 | io_u->error = win_to_posix_error(GetLastError()); | |
418 | } | |
67897036 BC |
419 | |
420 | return FIO_Q_COMPLETED; | |
421 | break; | |
422 | case DDIR_TRIM: | |
03244c19 | 423 | log_err("windowsaio: manual TRIM isn't supported on Windows\n"); |
67897036 BC |
424 | io_u->error = 1; |
425 | io_u->resid = io_u->xfer_buflen; | |
426 | return FIO_Q_COMPLETED; | |
427 | break; | |
428 | default: | |
429 | assert(0); | |
93bcfd20 | 430 | break; |
67897036 BC |
431 | } |
432 | ||
40c5db35 | 433 | if (success || GetLastError() == ERROR_IO_PENDING) |
67897036 | 434 | rc = FIO_Q_QUEUED; |
40c5db35 | 435 | else { |
2277d5d5 | 436 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
437 | io_u->resid = io_u->xfer_buflen; |
438 | } | |
439 | ||
440 | return rc; | |
441 | } | |
442 | ||
443 | /* Runs as a thread and waits for queued IO to complete */ | |
444 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter) | |
445 | { | |
446 | OVERLAPPED *ovl; | |
447 | struct fio_overlapped *fov; | |
448 | struct io_u *io_u; | |
449 | struct windowsaio_data *wd; | |
450 | struct thread_ctx *ctx; | |
451 | ULONG_PTR ulKey = 0; | |
452 | DWORD bytes; | |
453 | ||
454 | ctx = (struct thread_ctx*)lpParameter; | |
455 | wd = ctx->wd; | |
456 | ||
457 | do { | |
66c098b8 | 458 | if (!GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey, &ovl, 250) && ovl == NULL) |
67897036 BC |
459 | continue; |
460 | ||
461 | fov = CONTAINING_RECORD(ovl, struct fio_overlapped, o); | |
462 | io_u = fov->io_u; | |
463 | ||
464 | if (ovl->Internal == ERROR_SUCCESS) { | |
465 | io_u->resid = io_u->xfer_buflen - ovl->InternalHigh; | |
466 | io_u->error = 0; | |
467 | } else { | |
468 | io_u->resid = io_u->xfer_buflen; | |
2277d5d5 | 469 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
470 | } |
471 | ||
40c5db35 | 472 | fov->io_complete = TRUE; |
67897036 BC |
473 | SetEvent(wd->iocomplete_event); |
474 | } while (ctx->wd->iothread_running); | |
475 | ||
476 | CloseHandle(ctx->iocp); | |
477 | free(ctx); | |
478 | return 0; | |
479 | } | |
480 | ||
481 | static int fio_windowsaio_cancel(struct thread_data *td, | |
03244c19 | 482 | struct io_u *io_u) |
67897036 BC |
483 | { |
484 | int rc = 0; | |
485 | ||
486 | struct windowsaio_data *wd = td->io_ops->data; | |
487 | ||
488 | /* If we're running on Vista or newer, we can cancel individual IO requests */ | |
489 | if (wd->pCancelIoEx != NULL) { | |
490 | struct fio_overlapped *ovl = io_u->engine_data; | |
40c5db35 | 491 | |
03244c19 BC |
492 | if (!wd->pCancelIoEx(io_u->file->hFile, &ovl->o)) { |
493 | log_err("windowsaio: failed to cancel io\n"); | |
67897036 | 494 | rc = 1; |
03244c19 | 495 | } |
67897036 BC |
496 | } else |
497 | rc = 1; | |
498 | ||
499 | return rc; | |
500 | } | |
501 | ||
c73ed246 JA |
502 | static void fio_windowsaio_io_u_free(struct thread_data *td, struct io_u *io_u) |
503 | { | |
504 | struct fio_overlapped *o = io_u->engine_data; | |
505 | ||
506 | if (o) { | |
507 | CloseHandle(o->o.hEvent); | |
508 | io_u->engine_data = NULL; | |
509 | free(o); | |
510 | } | |
511 | } | |
512 | ||
513 | static int fio_windowsaio_io_u_init(struct thread_data *td, struct io_u *io_u) | |
514 | { | |
515 | struct fio_overlapped *o; | |
516 | ||
517 | o = malloc(sizeof(*o)); | |
b0106419 | 518 | o->io_complete = FALSE; |
c73ed246 JA |
519 | o->io_u = io_u; |
520 | o->o.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | |
03244c19 BC |
521 | if (o->o.hEvent == NULL) { |
522 | log_err("windowsaio: failed to create event handle\n"); | |
c73ed246 JA |
523 | free(o); |
524 | return 1; | |
525 | } | |
526 | ||
527 | io_u->engine_data = o; | |
528 | return 0; | |
529 | } | |
530 | ||
ecc314ba BC |
531 | static struct ioengine_ops ioengine = { |
532 | .name = "windowsaio", | |
533 | .version = FIO_IOOPS_VERSION, | |
534 | .init = fio_windowsaio_init, | |
535 | .queue = fio_windowsaio_queue, | |
536 | .cancel = fio_windowsaio_cancel, | |
537 | .getevents = fio_windowsaio_getevents, | |
538 | .event = fio_windowsaio_event, | |
539 | .cleanup = fio_windowsaio_cleanup, | |
540 | .open_file = fio_windowsaio_open_file, | |
541 | .close_file = fio_windowsaio_close_file, | |
c73ed246 JA |
542 | .get_file_size = generic_get_file_size, |
543 | .io_u_init = fio_windowsaio_io_u_init, | |
544 | .io_u_free = fio_windowsaio_io_u_free, | |
ecc314ba BC |
545 | }; |
546 | ||
c874d188 | 547 | static void fio_init fio_windowsaio_register(void) |
ecc314ba BC |
548 | { |
549 | register_ioengine(&ioengine); | |
550 | } | |
551 | ||
c874d188 | 552 | static void fio_exit fio_windowsaio_unregister(void) |
ecc314ba BC |
553 | { |
554 | unregister_ioengine(&ioengine); | |
555 | } |