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> | |
ecc314ba BC |
12 | |
13 | #include "../fio.h" | |
1388e473 | 14 | #include "../optgroup.h" |
ecc314ba | 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; |
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 | ||
1388e473 | 39 | struct windowsaio_options { |
40 | struct thread_data *td; | |
41 | unsigned int no_completion_thread; | |
42 | }; | |
43 | ||
44 | static struct fio_option options[] = { | |
45 | { | |
46 | .name = "no_completion_thread", | |
47 | .lname = "No completion polling thread", | |
48 | .type = FIO_OPT_STR_SET, | |
49 | .off1 = offsetof(struct windowsaio_options, no_completion_thread), | |
50 | .help = "Use to avoid separate completion polling thread", | |
51 | .category = FIO_OPT_C_ENGINE, | |
52 | .group = FIO_OPT_G_WINDOWSAIO, | |
53 | }, | |
54 | { | |
55 | .name = NULL, | |
56 | }, | |
57 | }; | |
58 | ||
ecc314ba | 59 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter); |
ecc314ba | 60 | |
ecc314ba BC |
61 | static int fio_windowsaio_init(struct thread_data *td) |
62 | { | |
ecc314ba | 63 | struct windowsaio_data *wd; |
9b836561 | 64 | int rc = 0; |
ecc314ba | 65 | |
03244c19 BC |
66 | wd = calloc(1, sizeof(struct windowsaio_data)); |
67 | if (wd == NULL) { | |
68 | log_err("windowsaio: failed to allocate memory for engine data\n"); | |
9b836561 | 69 | rc = 1; |
03244c19 | 70 | } |
ecc314ba | 71 | |
9b836561 BC |
72 | if (!rc) { |
73 | wd->aio_events = malloc(td->o.iodepth * sizeof(struct io_u*)); | |
03244c19 BC |
74 | if (wd->aio_events == NULL) { |
75 | log_err("windowsaio: failed to allocate memory for aio events list\n"); | |
9b836561 | 76 | rc = 1; |
03244c19 | 77 | } |
e4db9fec BC |
78 | } |
79 | ||
9b836561 BC |
80 | if (!rc) { |
81 | /* Create an auto-reset event */ | |
82 | wd->iocomplete_event = CreateEvent(NULL, FALSE, FALSE, NULL); | |
03244c19 BC |
83 | if (wd->iocomplete_event == NULL) { |
84 | log_err("windowsaio: failed to create io complete event handle\n"); | |
9b836561 | 85 | rc = 1; |
03244c19 | 86 | } |
9b836561 BC |
87 | } |
88 | ||
9b836561 | 89 | if (rc) { |
9b836561 | 90 | if (wd != NULL) { |
9b836561 BC |
91 | if (wd->aio_events != NULL) |
92 | free(wd->aio_events); | |
93 | ||
94 | free(wd); | |
95 | } | |
96 | } | |
ecc314ba | 97 | |
565e784d | 98 | td->io_ops_data = wd; |
93bcfd20 | 99 | |
5a90bb5f BC |
100 | if (!rc) { |
101 | struct thread_ctx *ctx; | |
102 | struct windowsaio_data *wd; | |
103 | HANDLE hFile; | |
1388e473 | 104 | struct windowsaio_options *o = td->eo; |
5a90bb5f BC |
105 | |
106 | hFile = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 0); | |
03244c19 BC |
107 | if (hFile == INVALID_HANDLE_VALUE) { |
108 | log_err("windowsaio: failed to create io completion port\n"); | |
5a90bb5f | 109 | rc = 1; |
03244c19 | 110 | } |
5a90bb5f | 111 | |
565e784d | 112 | wd = td->io_ops_data; |
5a90bb5f BC |
113 | wd->iothread_running = TRUE; |
114 | wd->iocp = hFile; | |
115 | ||
1388e473 | 116 | if (o->no_completion_thread == 0) { |
117 | if (!rc) | |
118 | ctx = malloc(sizeof(struct thread_ctx)); | |
5a90bb5f | 119 | |
1388e473 | 120 | if (!rc && ctx == NULL) { |
121 | log_err("windowsaio: failed to allocate memory for thread context structure\n"); | |
122 | CloseHandle(hFile); | |
123 | rc = 1; | |
124 | } | |
5a90bb5f | 125 | |
1388e473 | 126 | if (!rc) { |
127 | DWORD threadid; | |
438bb1cf | 128 | |
1388e473 | 129 | ctx->iocp = hFile; |
130 | ctx->wd = wd; | |
131 | wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, &threadid); | |
132 | if (!wd->iothread) | |
133 | log_err("windowsaio: failed to create io completion thread\n"); | |
134 | else if (fio_option_is_set(&td->o, cpumask)) | |
135 | fio_setaffinity(threadid, td->o.cpumask); | |
136 | } | |
137 | if (rc || wd->iothread == NULL) | |
138 | rc = 1; | |
5a90bb5f | 139 | } |
5a90bb5f BC |
140 | } |
141 | ||
4e79098f | 142 | return rc; |
ecc314ba BC |
143 | } |
144 | ||
67897036 BC |
145 | static void fio_windowsaio_cleanup(struct thread_data *td) |
146 | { | |
67897036 BC |
147 | struct windowsaio_data *wd; |
148 | ||
565e784d | 149 | wd = td->io_ops_data; |
67897036 BC |
150 | |
151 | if (wd != NULL) { | |
40c5db35 JA |
152 | wd->iothread_running = FALSE; |
153 | WaitForSingleObject(wd->iothread, INFINITE); | |
67897036 BC |
154 | |
155 | CloseHandle(wd->iothread); | |
156 | CloseHandle(wd->iocomplete_event); | |
157 | ||
67897036 | 158 | free(wd->aio_events); |
67897036 BC |
159 | free(wd); |
160 | ||
565e784d | 161 | td->io_ops_data = NULL; |
67897036 BC |
162 | } |
163 | } | |
164 | ||
8300eba5 SW |
165 | static int windowsaio_invalidate_cache(struct fio_file *f) |
166 | { | |
167 | DWORD error; | |
168 | DWORD isharemode = (FILE_SHARE_DELETE | FILE_SHARE_READ | | |
1633aa61 | 169 | FILE_SHARE_WRITE); |
8300eba5 SW |
170 | HANDLE ihFile; |
171 | int rc = 0; | |
172 | ||
173 | /* | |
174 | * Encourage Windows to drop cached parts of a file by temporarily | |
175 | * opening it for non-buffered access. Note: this will only work when | |
176 | * the following is the only thing with the file open on the whole | |
177 | * system. | |
178 | */ | |
179 | dprint(FD_IO, "windowaio: attempt invalidate cache for %s\n", | |
180 | f->file_name); | |
181 | ihFile = CreateFile(f->file_name, 0, isharemode, NULL, OPEN_EXISTING, | |
182 | FILE_FLAG_NO_BUFFERING, NULL); | |
183 | ||
184 | if (ihFile != INVALID_HANDLE_VALUE) { | |
185 | if (!CloseHandle(ihFile)) { | |
186 | error = GetLastError(); | |
4937100f SW |
187 | log_info("windowsaio: invalidation fd close %s failed: error %lu\n", |
188 | f->file_name, error); | |
8300eba5 SW |
189 | rc = 1; |
190 | } | |
191 | } else { | |
192 | error = GetLastError(); | |
193 | if (error != ERROR_FILE_NOT_FOUND) { | |
4937100f SW |
194 | log_info("windowsaio: cache invalidation of %s failed: error %lu\n", |
195 | f->file_name, error); | |
8300eba5 SW |
196 | rc = 1; |
197 | } | |
198 | } | |
199 | ||
200 | return rc; | |
201 | } | |
202 | ||
ecc314ba BC |
203 | static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f) |
204 | { | |
205 | int rc = 0; | |
4e79098f | 206 | DWORD flags = FILE_FLAG_POSIX_SEMANTICS | FILE_FLAG_OVERLAPPED; |
ecc314ba BC |
207 | DWORD sharemode = FILE_SHARE_READ | FILE_SHARE_WRITE; |
208 | DWORD openmode = OPEN_ALWAYS; | |
209 | DWORD access; | |
210 | ||
211 | dprint(FD_FILE, "fd open %s\n", f->file_name); | |
212 | ||
ecc314ba | 213 | if (f->filetype == FIO_TYPE_PIPE) { |
03244c19 | 214 | log_err("windowsaio: pipes are not supported\n"); |
ecc314ba BC |
215 | return 1; |
216 | } | |
217 | ||
218 | if (!strcmp(f->file_name, "-")) { | |
03244c19 | 219 | log_err("windowsaio: can't read/write to stdin/out\n"); |
ecc314ba BC |
220 | return 1; |
221 | } | |
222 | ||
223 | if (td->o.odirect) | |
224 | flags |= FILE_FLAG_NO_BUFFERING; | |
225 | if (td->o.sync_io) | |
226 | flags |= FILE_FLAG_WRITE_THROUGH; | |
227 | ||
93bcfd20 BC |
228 | /* |
229 | * Inform Windows whether we're going to be doing sequential or | |
f20a86a7 | 230 | * random IO so it can tune the Cache Manager |
93bcfd20 | 231 | */ |
f20a86a7 SW |
232 | switch (td->o.fadvise_hint) { |
233 | case F_ADV_TYPE: | |
234 | if (td_random(td)) | |
235 | flags |= FILE_FLAG_RANDOM_ACCESS; | |
236 | else | |
237 | flags |= FILE_FLAG_SEQUENTIAL_SCAN; | |
238 | break; | |
239 | case F_ADV_RANDOM: | |
ecc314ba | 240 | flags |= FILE_FLAG_RANDOM_ACCESS; |
f20a86a7 SW |
241 | break; |
242 | case F_ADV_SEQUENTIAL: | |
243 | flags |= FILE_FLAG_SEQUENTIAL_SCAN; | |
244 | break; | |
245 | case F_ADV_NONE: | |
246 | break; | |
247 | default: | |
248 | log_err("fio: unknown fadvise type %d\n", td->o.fadvise_hint); | |
249 | } | |
ecc314ba | 250 | |
c3773c17 | 251 | if ((!td_write(td) && !(td->flags & TD_F_SYNCS)) || read_only) |
ecc314ba BC |
252 | access = GENERIC_READ; |
253 | else | |
254 | access = (GENERIC_READ | GENERIC_WRITE); | |
255 | ||
93bcfd20 | 256 | if (td->o.create_on_open) |
ecc314ba BC |
257 | openmode = OPEN_ALWAYS; |
258 | else | |
259 | openmode = OPEN_EXISTING; | |
260 | ||
8300eba5 SW |
261 | /* If we're going to use direct I/O, Windows will try and invalidate |
262 | * its cache at that point so there's no need to do it here */ | |
3e9ae304 | 263 | if (td->o.invalidate_cache && !td->o.odirect) |
8300eba5 | 264 | windowsaio_invalidate_cache(f); |
8300eba5 | 265 | |
ecc314ba BC |
266 | f->hFile = CreateFile(f->file_name, access, sharemode, |
267 | NULL, openmode, flags, NULL); | |
268 | ||
03244c19 BC |
269 | if (f->hFile == INVALID_HANDLE_VALUE) { |
270 | log_err("windowsaio: failed to open file \"%s\"\n", f->file_name); | |
ecc314ba | 271 | rc = 1; |
03244c19 | 272 | } |
ecc314ba | 273 | |
93bcfd20 | 274 | /* Only set up the completion port and thread if we're not just |
ecc314ba | 275 | * querying the device size */ |
565e784d | 276 | if (!rc && td->io_ops_data != NULL) { |
40c5db35 | 277 | struct windowsaio_data *wd; |
ecc314ba | 278 | |
565e784d | 279 | wd = td->io_ops_data; |
ecc314ba | 280 | |
03244c19 BC |
281 | if (CreateIoCompletionPort(f->hFile, wd->iocp, 0, 0) == NULL) { |
282 | log_err("windowsaio: failed to create io completion port\n"); | |
ecc314ba | 283 | rc = 1; |
03244c19 | 284 | } |
ecc314ba BC |
285 | } |
286 | ||
ecc314ba BC |
287 | return rc; |
288 | } | |
289 | ||
290 | static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f) | |
291 | { | |
4e79098f | 292 | int rc = 0; |
1e42cc3d | 293 | |
9b836561 BC |
294 | dprint(FD_FILE, "fd close %s\n", f->file_name); |
295 | ||
ecc314ba | 296 | if (f->hFile != INVALID_HANDLE_VALUE) { |
03244c19 BC |
297 | if (!CloseHandle(f->hFile)) { |
298 | log_info("windowsaio: failed to close file handle for \"%s\"\n", f->file_name); | |
4e79098f | 299 | rc = 1; |
03244c19 | 300 | } |
ecc314ba BC |
301 | } |
302 | ||
303 | f->hFile = INVALID_HANDLE_VALUE; | |
4e79098f | 304 | return rc; |
ecc314ba BC |
305 | } |
306 | ||
67897036 BC |
307 | static BOOL timeout_expired(DWORD start_count, DWORD end_count) |
308 | { | |
309 | BOOL expired = FALSE; | |
310 | DWORD current_time; | |
311 | ||
312 | current_time = GetTickCount(); | |
313 | ||
314 | if ((end_count > start_count) && current_time >= end_count) | |
315 | expired = TRUE; | |
316 | else if (current_time < start_count && current_time > end_count) | |
317 | expired = TRUE; | |
318 | ||
319 | return expired; | |
320 | } | |
321 | ||
322 | static struct io_u* fio_windowsaio_event(struct thread_data *td, int event) | |
323 | { | |
565e784d | 324 | struct windowsaio_data *wd = td->io_ops_data; |
67897036 BC |
325 | return wd->aio_events[event]; |
326 | } | |
327 | ||
1388e473 | 328 | /* dequeue completion entrees directly (no separate completion thread) */ |
329 | static int fio_windowsaio_getevents_nothread(struct thread_data *td, unsigned int min, | |
330 | unsigned int max, const struct timespec *t) | |
331 | { | |
332 | struct windowsaio_data *wd = td->io_ops_data; | |
333 | unsigned int dequeued = 0; | |
334 | struct io_u *io_u; | |
335 | DWORD start_count = 0; | |
336 | DWORD end_count = 0; | |
337 | DWORD mswait = 250; | |
338 | struct fio_overlapped *fov; | |
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 | BOOL ret; | |
348 | OVERLAPPED *ovl; | |
349 | ||
350 | ULONG entries = min(16, max-dequeued); | |
351 | OVERLAPPED_ENTRY oe[16]; | |
352 | ret = GetQueuedCompletionStatusEx(wd->iocp, oe, 16, &entries, mswait, 0); | |
353 | if (ret && entries) { | |
354 | int entry_num; | |
355 | ||
356 | for (entry_num=0; entry_num<entries; entry_num++) { | |
357 | ovl = oe[entry_num].lpOverlapped; | |
358 | fov = CONTAINING_RECORD(ovl, struct fio_overlapped, o); | |
359 | io_u = fov->io_u; | |
360 | ||
361 | if (ovl->Internal == ERROR_SUCCESS) { | |
362 | io_u->resid = io_u->xfer_buflen - ovl->InternalHigh; | |
363 | io_u->error = 0; | |
364 | } else { | |
365 | io_u->resid = io_u->xfer_buflen; | |
366 | io_u->error = win_to_posix_error(GetLastError()); | |
367 | } | |
368 | ||
369 | fov->io_complete = FALSE; | |
370 | wd->aio_events[dequeued] = io_u; | |
371 | dequeued++; | |
372 | } | |
373 | } | |
374 | ||
375 | if (dequeued >= min || | |
376 | (t != NULL && timeout_expired(start_count, end_count))) | |
377 | break; | |
378 | } while (1); | |
379 | return dequeued; | |
380 | } | |
381 | ||
382 | /* dequeue completion entrees creates by separate IoCompletionRoutine thread */ | |
383 | static int fio_windowaio_getevents_thread(struct thread_data *td, unsigned int min, | |
384 | unsigned int max, const struct timespec *t) | |
67897036 | 385 | { |
565e784d | 386 | struct windowsaio_data *wd = td->io_ops_data; |
67897036 BC |
387 | unsigned int dequeued = 0; |
388 | struct io_u *io_u; | |
7b2dfab1 | 389 | int i; |
67897036 BC |
390 | struct fio_overlapped *fov; |
391 | DWORD start_count = 0; | |
392 | DWORD end_count = 0; | |
393 | DWORD status; | |
394 | DWORD mswait = 250; | |
395 | ||
396 | if (t != NULL) { | |
397 | mswait = (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
398 | start_count = GetTickCount(); | |
399 | end_count = start_count + (t->tv_sec * 1000) + (t->tv_nsec / 1000000); | |
400 | } | |
401 | ||
402 | do { | |
7b2dfab1 BC |
403 | io_u_qiter(&td->io_u_all, io_u, i) { |
404 | if (!(io_u->flags & IO_U_F_FLIGHT)) | |
405 | continue; | |
406 | ||
67897036 BC |
407 | fov = (struct fio_overlapped*)io_u->engine_data; |
408 | ||
409 | if (fov->io_complete) { | |
40c5db35 | 410 | fov->io_complete = FALSE; |
67897036 BC |
411 | wd->aio_events[dequeued] = io_u; |
412 | dequeued++; | |
413 | } | |
67897036 | 414 | } |
77e7b330 JR |
415 | if (dequeued >= min) |
416 | break; | |
67897036 | 417 | |
40c5db35 | 418 | if (dequeued < min) { |
67897036 | 419 | status = WaitForSingleObject(wd->iocomplete_event, mswait); |
f9a58c2a | 420 | if (status != WAIT_OBJECT_0 && dequeued >= min) |
03244c19 | 421 | break; |
67897036 BC |
422 | } |
423 | ||
1633aa61 JA |
424 | if (dequeued >= min || |
425 | (t != NULL && timeout_expired(start_count, end_count))) | |
67897036 BC |
426 | break; |
427 | } while (1); | |
428 | ||
429 | return dequeued; | |
430 | } | |
431 | ||
1388e473 | 432 | static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min, |
433 | unsigned int max, const struct timespec *t) | |
434 | { | |
435 | struct windowsaio_options *o = td->eo; | |
436 | ||
437 | if (o->no_completion_thread) | |
438 | return fio_windowsaio_getevents_nothread(td, min, max, t); | |
439 | return fio_windowaio_getevents_thread(td, min, max, t); | |
440 | } | |
441 | ||
2e4ef4fb JA |
442 | static enum fio_q_status fio_windowsaio_queue(struct thread_data *td, |
443 | struct io_u *io_u) | |
67897036 | 444 | { |
c73ed246 JA |
445 | struct fio_overlapped *o = io_u->engine_data; |
446 | LPOVERLAPPED lpOvl = &o->o; | |
93bcfd20 | 447 | BOOL success = FALSE; |
67897036 BC |
448 | int rc = FIO_Q_COMPLETED; |
449 | ||
450 | fio_ro_check(td, io_u); | |
451 | ||
77e7b330 | 452 | lpOvl->Internal = 0; |
4e79098f BC |
453 | lpOvl->InternalHigh = 0; |
454 | lpOvl->Offset = io_u->offset & 0xFFFFFFFF; | |
455 | lpOvl->OffsetHigh = io_u->offset >> 32; | |
67897036 BC |
456 | |
457 | switch (io_u->ddir) { | |
40c5db35 | 458 | case DDIR_WRITE: |
1633aa61 JA |
459 | success = WriteFile(io_u->file->hFile, io_u->xfer_buf, |
460 | io_u->xfer_buflen, NULL, lpOvl); | |
67897036 BC |
461 | break; |
462 | case DDIR_READ: | |
1633aa61 JA |
463 | success = ReadFile(io_u->file->hFile, io_u->xfer_buf, |
464 | io_u->xfer_buflen, NULL, lpOvl); | |
67897036 BC |
465 | break; |
466 | case DDIR_SYNC: | |
467 | case DDIR_DATASYNC: | |
468 | case DDIR_SYNC_FILE_RANGE: | |
469 | success = FlushFileBuffers(io_u->file->hFile); | |
03244c19 BC |
470 | if (!success) { |
471 | log_err("windowsaio: failed to flush file buffers\n"); | |
472 | io_u->error = win_to_posix_error(GetLastError()); | |
473 | } | |
67897036 BC |
474 | |
475 | return FIO_Q_COMPLETED; | |
67897036 | 476 | case DDIR_TRIM: |
03244c19 | 477 | log_err("windowsaio: manual TRIM isn't supported on Windows\n"); |
67897036 BC |
478 | io_u->error = 1; |
479 | io_u->resid = io_u->xfer_buflen; | |
480 | return FIO_Q_COMPLETED; | |
67897036 BC |
481 | default: |
482 | assert(0); | |
93bcfd20 | 483 | break; |
67897036 BC |
484 | } |
485 | ||
40c5db35 | 486 | if (success || GetLastError() == ERROR_IO_PENDING) |
67897036 | 487 | rc = FIO_Q_QUEUED; |
40c5db35 | 488 | else { |
2277d5d5 | 489 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
490 | io_u->resid = io_u->xfer_buflen; |
491 | } | |
492 | ||
493 | return rc; | |
494 | } | |
495 | ||
496 | /* Runs as a thread and waits for queued IO to complete */ | |
497 | static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter) | |
498 | { | |
499 | OVERLAPPED *ovl; | |
500 | struct fio_overlapped *fov; | |
501 | struct io_u *io_u; | |
502 | struct windowsaio_data *wd; | |
503 | struct thread_ctx *ctx; | |
504 | ULONG_PTR ulKey = 0; | |
505 | DWORD bytes; | |
506 | ||
507 | ctx = (struct thread_ctx*)lpParameter; | |
508 | wd = ctx->wd; | |
509 | ||
510 | do { | |
1633aa61 JA |
511 | BOOL ret; |
512 | ||
513 | ret = GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey, | |
514 | &ovl, 250); | |
515 | if (!ret && ovl == NULL) | |
67897036 BC |
516 | continue; |
517 | ||
518 | fov = CONTAINING_RECORD(ovl, struct fio_overlapped, o); | |
519 | io_u = fov->io_u; | |
520 | ||
521 | if (ovl->Internal == ERROR_SUCCESS) { | |
522 | io_u->resid = io_u->xfer_buflen - ovl->InternalHigh; | |
523 | io_u->error = 0; | |
524 | } else { | |
525 | io_u->resid = io_u->xfer_buflen; | |
2277d5d5 | 526 | io_u->error = win_to_posix_error(GetLastError()); |
67897036 BC |
527 | } |
528 | ||
40c5db35 | 529 | fov->io_complete = TRUE; |
67897036 BC |
530 | SetEvent(wd->iocomplete_event); |
531 | } while (ctx->wd->iothread_running); | |
532 | ||
533 | CloseHandle(ctx->iocp); | |
534 | free(ctx); | |
535 | return 0; | |
536 | } | |
537 | ||
c73ed246 JA |
538 | static void fio_windowsaio_io_u_free(struct thread_data *td, struct io_u *io_u) |
539 | { | |
540 | struct fio_overlapped *o = io_u->engine_data; | |
541 | ||
542 | if (o) { | |
c73ed246 JA |
543 | io_u->engine_data = NULL; |
544 | free(o); | |
545 | } | |
546 | } | |
547 | ||
548 | static int fio_windowsaio_io_u_init(struct thread_data *td, struct io_u *io_u) | |
549 | { | |
550 | struct fio_overlapped *o; | |
551 | ||
552 | o = malloc(sizeof(*o)); | |
b0106419 | 553 | o->io_complete = FALSE; |
c73ed246 | 554 | o->io_u = io_u; |
77e7b330 | 555 | o->o.hEvent = NULL; |
c73ed246 JA |
556 | io_u->engine_data = o; |
557 | return 0; | |
558 | } | |
559 | ||
ecc314ba BC |
560 | static struct ioengine_ops ioengine = { |
561 | .name = "windowsaio", | |
562 | .version = FIO_IOOPS_VERSION, | |
563 | .init = fio_windowsaio_init, | |
564 | .queue = fio_windowsaio_queue, | |
ecc314ba BC |
565 | .getevents = fio_windowsaio_getevents, |
566 | .event = fio_windowsaio_event, | |
567 | .cleanup = fio_windowsaio_cleanup, | |
568 | .open_file = fio_windowsaio_open_file, | |
569 | .close_file = fio_windowsaio_close_file, | |
c73ed246 JA |
570 | .get_file_size = generic_get_file_size, |
571 | .io_u_init = fio_windowsaio_io_u_init, | |
572 | .io_u_free = fio_windowsaio_io_u_free, | |
1388e473 | 573 | .options = options, |
574 | .option_struct_size = sizeof(struct windowsaio_options), | |
ecc314ba BC |
575 | }; |
576 | ||
c874d188 | 577 | static void fio_init fio_windowsaio_register(void) |
ecc314ba BC |
578 | { |
579 | register_ioengine(&ioengine); | |
580 | } | |
581 | ||
c874d188 | 582 | static void fio_exit fio_windowsaio_unregister(void) |
ecc314ba BC |
583 | { |
584 | unregister_ioengine(&ioengine); | |
585 | } |