* Copyright (C) 2010 Bruce Cran <bruce@cran.org.uk>
*/
-
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "../fio.h"
-BOOL windowsaio_debug = FALSE;
-
-struct windowsaio_data {
- struct io_u **aio_events;
- unsigned int ioFinished;
- BOOL running;
- BOOL stopped;
- HANDLE hThread;
-};
-
typedef struct {
OVERLAPPED o;
struct io_u *io_u;
} FIO_OVERLAPPED;
+struct windowsaio_data {
+ HANDLE *io_handles;
+ unsigned int io_index;
+ FIO_OVERLAPPED *ovls;
+
+ HANDLE iothread;
+ HANDLE iothread_stopped;
+ BOOL iothread_running;
+
+ struct io_u **aio_events;
+ HANDLE iocomplete_event;
+ BOOL have_cancelioex;
+};
+
struct thread_ctx {
- HANDLE ioCP;
+ HANDLE iocp;
struct windowsaio_data *wd;
};
static void PrintError(LPCSTR lpszFunction);
static int fio_windowsaio_cancel(struct thread_data *td,
struct io_u *io_u);
-static DWORD GetEndCount(DWORD startCount, struct timespec *t);
-static BOOL TimedOut(DWORD startCount, DWORD endCount);
+static BOOL TimedOut(DWORD start_count, DWORD end_count);
static int fio_windowsaio_getevents(struct thread_data *td, unsigned int min,
unsigned int max, struct timespec *t);
static struct io_u *fio_windowsaio_event(struct thread_data *td, int event);
static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f);
static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f);
+/* CancelIoEx isn't in Cygwin's w32api */
+BOOL WINAPI CancelIoEx(
+ HANDLE hFile,
+ LPOVERLAPPED lpOverlapped
+);
+
+
+
+int sync_file_range(int fd, off64_t offset, off64_t nbytes,
+ unsigned int flags)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
static void PrintError(LPCSTR lpszFunction)
{
// Retrieve the system error message for the last-error code
static int fio_windowsaio_cancel(struct thread_data *td,
struct io_u *io_u)
{
- BOOL bSuccess;
int rc = 0;
- bSuccess = CancelIo(io_u->file->hFile);
+ struct windowsaio_data *wd = td->io_ops->data;
- if (!bSuccess)
+ /* If we're running on Vista, we can cancel individual IO requests */
+ if (wd->have_cancelioex) {
+ FIO_OVERLAPPED *ovl = io_u->engine_data;
+ if (!CancelIoEx(io_u->file->hFile, &ovl->o))
+ rc = 1;
+ } else
rc = 1;
return rc;
}
-static DWORD GetEndCount(DWORD startCount, struct timespec *t)
-{
- DWORD endCount = startCount;
-
- if (t == NULL)
- return 0;
-
- endCount += (t->tv_sec * 1000) + (t->tv_nsec / 1000000);
- return endCount;
-}
-
-static BOOL TimedOut(DWORD startCount, DWORD endCount)
+static BOOL TimedOut(DWORD start_count, DWORD end_count)
{
BOOL expired = FALSE;
- DWORD currentTime;
-
- if (startCount == 0 || endCount == 0)
- return FALSE;
+ DWORD current_time;
- currentTime = GetTickCount();
+ current_time = GetTickCount();
- if ((endCount > startCount) && currentTime >= endCount)
+ if ((end_count > start_count) && current_time >= end_count)
expired = TRUE;
- else if (currentTime < startCount && currentTime > endCount)
+ else if (current_time < start_count && current_time > end_count)
expired = TRUE;
- if (windowsaio_debug)
- printf("windowsaio: timedout = %d\n", expired);
-
return expired;
}
struct flist_head *entry;
unsigned int dequeued = 0;
struct io_u *io_u;
- DWORD startCount = 0, endCount = 0;
+ DWORD start_count = 0, end_count = 0;
BOOL timedout = FALSE;
- unsigned int r = 0;
-
- if (windowsaio_debug)
- printf("getevents (min %d, max %d)\n", min, max);
+ unsigned int mswait = 100;
if (t != NULL) {
- startCount = GetTickCount();
- endCount = GetEndCount(startCount, t);
+ mswait = (t->tv_sec * 1000) + (t->tv_nsec / 1000000);
+ start_count = GetTickCount();
+ end_count = start_count + (t->tv_sec * 1000) + (t->tv_nsec / 1000000);
}
while (dequeued < min && !timedout) {
-
flist_for_each(entry, &td->io_u_busylist) {
io_u = flist_entry(entry, struct io_u, list);
- if (io_u->seen == 0)
- continue;
-
- dequeued++;
-
- wd->ioFinished--;
- wd->aio_events[r] = io_u;
- r++;
-
- if (windowsaio_debug)
- printf("dequeued %d\n", dequeued);
+ if (io_u->seen == 1) {
+ io_u->seen = 2;
+ wd->aio_events[dequeued] = io_u;
+ dequeued++;
+ }
if (dequeued == max)
break;
}
- if (TimedOut(startCount, endCount))
- timedout = TRUE;
+ if (dequeued < min) {
+ WaitForSingleObject(wd->iocomplete_event, mswait);
+ }
- if (dequeued < min && !timedout)
- Sleep(250);
+ if (t != NULL && TimedOut(start_count, end_count))
+ timedout = TRUE;
}
- if (windowsaio_debug)
- printf("leave getevents (%d)\n", dequeued);
-
return dequeued;
}
static int fio_windowsaio_queue(struct thread_data *td,
struct io_u *io_u)
{
- FIO_OVERLAPPED *fov;
- DWORD ioBytes;
- BOOL bSuccess = TRUE;
+ struct windowsaio_data *wd;
+ DWORD iobytes;
+ BOOL success = TRUE;
+ int ind;
int rc;
fio_ro_check(td, io_u);
- if (windowsaio_debug)
- printf("enqueue enter\n");
+ wd = td->io_ops->data;
+ ind = wd->io_index;
- fov = malloc(sizeof(FIO_OVERLAPPED));
- ZeroMemory(fov, sizeof(FIO_OVERLAPPED));
+ ResetEvent(wd->io_handles[ind]);
+ wd->ovls[ind].o.Internal = 0;
+ wd->ovls[ind].o.InternalHigh = 0;
+ wd->ovls[ind].o.Offset = io_u->offset & 0xFFFFFFFF;
+ wd->ovls[ind].o.OffsetHigh = io_u->offset >> 32;
+ wd->ovls[ind].o.hEvent = wd->io_handles[ind];
+ wd->ovls[ind].io_u = io_u;
+ io_u->engine_data = &wd->ovls[ind];
io_u->seen = 0;
- fov->o.Offset = io_u->offset & 0xFFFFFFFF;
- fov->o.OffsetHigh = io_u->offset >> 32;
- fov->o.hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
- fov->io_u = io_u;
-
- if (fov->o.hEvent == NULL) {
- PrintError(__func__);
- return 1;
- }
-
- if (io_u->ddir == DDIR_WRITE)
- bSuccess = WriteFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &ioBytes, &fov->o);
- else if (io_u->ddir == DDIR_READ)
- bSuccess = ReadFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &ioBytes, &fov->o);
- else if (io_u->ddir == DDIR_SYNC ||
+ if (io_u->ddir == DDIR_WRITE) {
+ success = WriteFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, &wd->ovls[ind].o);
+ } else if (io_u->ddir == DDIR_READ) {
+ success = ReadFile(io_u->file->hFile, io_u->xfer_buf, io_u->xfer_buflen, &iobytes, &wd->ovls[ind].o);
+ } else if (io_u->ddir == DDIR_SYNC ||
io_u->ddir == DDIR_DATASYNC ||
io_u->ddir == DDIR_SYNC_FILE_RANGE)
{
} else if (io_u->ddir == DDIR_TRIM) {
log_info("explicit TRIM isn't supported on Windows");
return FIO_Q_COMPLETED;
- }
+ } else
+ assert(0);
- if (bSuccess) {
+ if (success) {
io_u->seen = 1;
- io_u->resid = io_u->xfer_buflen - fov->o.InternalHigh;
+ io_u->resid = io_u->xfer_buflen - iobytes;
io_u->error = 0;
rc = FIO_Q_COMPLETED;
- } else if (!bSuccess && GetLastError() == ERROR_IO_PENDING) {
+ } else if (!success && GetLastError() == ERROR_IO_PENDING) {
+ wd->io_index = (wd->io_index + 1) % (2 * td->o.iodepth);
rc = FIO_Q_QUEUED;
} else {
PrintError(__func__);
rc = FIO_Q_COMPLETED;
}
- if (windowsaio_debug)
- printf("enqueue - leave (offset %llu)\n", io_u->offset);
-
return rc;
}
static void fio_windowsaio_cleanup(struct thread_data *td)
{
+ int i;
struct windowsaio_data *wd;
- if (windowsaio_debug)
- printf("windowsaio: cleanup - enter\n");
-
wd = td->io_ops->data;
- wd->running = FALSE;
- while (wd->stopped == FALSE)
- Sleep(5);
+ WaitForSingleObject(wd->iothread_stopped, INFINITE);
if (wd != NULL) {
- CloseHandle(wd->hThread);
+ CloseHandle(wd->iothread);
+ CloseHandle(wd->iothread_stopped);
+ CloseHandle(wd->iocomplete_event);
+
+ for (i = 0; i < 2 * td->o.iodepth; i++) {
+ CloseHandle(wd->io_handles[i]);
+ }
+
free(wd->aio_events);
- wd->aio_events = NULL;
+ free(wd->io_handles);
+ free(wd->ovls);
free(wd);
+
td->io_ops->data = NULL;
}
-
- if (windowsaio_debug)
- printf("windowsaio: cleanup - leave\n");
}
+/* Runs as a thread and waits for queued IO to complete */
static DWORD WINAPI IoCompletionRoutine(LPVOID lpParameter)
{
OVERLAPPED *ovl;
FIO_OVERLAPPED *fov;
struct io_u *io_u;
struct windowsaio_data *wd;
-
struct thread_ctx *ctx;
ULONG_PTR ulKey = 0;
- BOOL bSuccess;
DWORD bytes;
-
ctx = (struct thread_ctx*)lpParameter;
wd = ctx->wd;
- bSuccess = TRUE;
-
- if (windowsaio_debug)
- printf("windowsaio: IoCompletionRoutine - enter\n");
-
- while (ctx->wd->running) {
- bSuccess = GetQueuedCompletionStatus(ctx->ioCP, &bytes, &ulKey, &ovl, 500);
- if (windowsaio_debug)
- printf("GetQueuedCompletionStatus returned %d\n", bSuccess);
-
- if (!bSuccess) {
- if (GetLastError() == WAIT_TIMEOUT) {
- continue;
- } else {
- PrintError(__func__);
- continue;
- }
- }
+ while (ctx->wd->iothread_running) {
+ if (!GetQueuedCompletionStatus(ctx->iocp, &bytes, &ulKey, &ovl, 250))
+ continue;
fov = CONTAINING_RECORD(ovl, FIO_OVERLAPPED, o);
io_u = fov->io_u;
- if (windowsaio_debug) {
- if (io_u->seen == 1)
- printf("IoCompletionRoutine - got already completed IO\n");
- else
- printf("IoCompletionRoutine - completed %d IO\n", ctx->wd->ioFinished);
- }
-
- if (io_u->seen == 1)
+ if (io_u->seen != 0)
continue;
- ctx->wd->ioFinished++;
-
if (ovl->Internal == ERROR_SUCCESS) {
io_u->resid = io_u->xfer_buflen - ovl->InternalHigh;
io_u->error = 0;
} else {
io_u->resid = io_u->xfer_buflen;
- io_u->error = 1;
+ io_u->error = ovl->Internal;
}
io_u->seen = 1;
- CloseHandle(ovl->hEvent);
- free(ovl);
+ SetEvent(wd->iocomplete_event);
}
- bSuccess = CloseHandle(ctx->ioCP);
- if (!bSuccess)
- PrintError(__func__);
-
- if (windowsaio_debug)
- printf("windowsaio: IoCompletionRoutine - leave\n");
-
- ctx->wd->stopped = TRUE;
+ CloseHandle(ctx->iocp);
+ SetEvent(ctx->wd->iothread_stopped);
free(ctx);
+
return 0;
}
static int fio_windowsaio_init(struct thread_data *td)
{
- int rc = 0;
struct windowsaio_data *wd;
-
- if (windowsaio_debug)
- printf("windowsaio: init\n");
+ OSVERSIONINFO osInfo;
+ int rc = 0;
wd = malloc(sizeof(struct windowsaio_data));
+ if (wd != NULL)
+ ZeroMemory(wd, sizeof(struct windowsaio_data));
+ else
+ rc = 1;
- ZeroMemory(wd, sizeof(*wd));
- wd->aio_events = malloc((td->o.iodepth + 1) * sizeof(struct io_u *));
- ZeroMemory(wd->aio_events, (td->o.iodepth + 1) * sizeof(struct io_u *));
+ if (!rc) {
+ wd->aio_events = malloc(td->o.iodepth * sizeof(struct io_u*));
+ if (wd->aio_events == NULL)
+ rc = 1;
+ }
+
+ if (!rc) {
+ wd->io_handles = malloc(2 * td->o.iodepth * sizeof(HANDLE));
+ if (wd->io_handles == NULL)
+ rc = 1;
+ }
+
+ if (!rc) {
+ wd->ovls = malloc(2 * td->o.iodepth * sizeof(FIO_OVERLAPPED));
+ if (wd->ovls == NULL)
+ rc = 1;
+ }
+
+ if (!rc) {
+ /* Create an auto-reset event */
+ wd->iocomplete_event = CreateEvent(NULL, FALSE, FALSE, NULL);
+ if (wd->iocomplete_event == NULL)
+ rc = 1;
+ }
+
+ if (!rc) {
+ osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+ GetVersionEx(&osInfo);
+
+ if (osInfo.dwMajorVersion >= 6)
+ wd->have_cancelioex = TRUE;
+ else
+ wd->have_cancelioex = FALSE;
+ }
+
+ if (rc) {
+ PrintError(__func__);
+ if (wd != NULL) {
+ if (wd->ovls != NULL)
+ free(wd->ovls);
+ if (wd->io_handles != NULL)
+ free(wd->io_handles);
+ if (wd->aio_events != NULL)
+ free(wd->aio_events);
+
+ free(wd);
+ }
+ }
td->io_ops->data = wd;
- return rc;
+ return 0;
}
static int fio_windowsaio_open_file(struct thread_data *td, struct fio_file *f)
DWORD sharemode = FILE_SHARE_READ | FILE_SHARE_WRITE;
DWORD openmode = OPEN_ALWAYS;
DWORD access;
+ int i;
dprint(FD_FILE, "fd open %s\n", f->file_name);
- if (windowsaio_debug)
- printf("windowsaio: open file %s - enter\n", f->file_name);
-
if (f->filetype == FIO_TYPE_PIPE) {
log_err("fio: windowsaio doesn't support pipes\n");
return 1;
NULL, openmode, flags, NULL);
if (f->hFile == INVALID_HANDLE_VALUE) {
- log_err("Failed to open %s\n", f->file_name);
PrintError(__func__);
rc = 1;
}
hFile = CreateIoCompletionPort(f->hFile, NULL, 0, 0);
wd = td->io_ops->data;
- wd->running = TRUE;
- wd->stopped = FALSE;
- ctx = malloc(sizeof(struct thread_ctx));
- ctx->ioCP = hFile;
- ctx->wd = wd;
+ wd->io_index = 0;
+ wd->iothread_running = TRUE;
+ /* Create a manual-reset event */
+ wd->iothread_stopped = CreateEvent(NULL, TRUE, FALSE, NULL);
- wd->hThread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, NULL);
+ if (wd->iothread_stopped == NULL)
+ rc = 1;
- if (wd->hThread == NULL) {
+ if (!rc) {
+ for (i = 0; i < 2 * td->o.iodepth; i++) {
+ /* Create a manual-reset event for putting in OVERLAPPED */
+ wd->io_handles[i] = CreateEvent(NULL, TRUE, FALSE, NULL);
+ if (wd->io_handles[i] == NULL) {
+ PrintError(__func__);
+ rc = 1;
+ break;
+ }
+ }
+ }
+
+ if (!rc) {
+ ctx = malloc(sizeof(struct thread_ctx));
+ ctx->iocp = hFile;
+ ctx->wd = wd;
+
+ wd->iothread = CreateThread(NULL, 0, IoCompletionRoutine, ctx, 0, NULL);
+ }
+
+ if (rc || wd->iothread == NULL) {
PrintError(__func__);
rc = 1;
}
}
- if (windowsaio_debug)
- printf("windowsaio: open file - leave (%d)\n", rc);
-
return rc;
}
static int fio_windowsaio_close_file(struct thread_data fio_unused *td, struct fio_file *f)
{
- BOOL bSuccess;
+ struct windowsaio_data *wd;
- if (windowsaio_debug)
- printf("windowsaio: close file\n");
+ dprint(FD_FILE, "fd close %s\n", f->file_name);
+
+ if (td->io_ops->data != NULL) {
+ wd = td->io_ops->data;
+ wd->iothread_running = FALSE;
+ WaitForSingleObject(wd->iothread_stopped, INFINITE);
+ }
if (f->hFile != INVALID_HANDLE_VALUE) {
- bSuccess = CloseHandle(f->hFile);
- if (!bSuccess)
+ if (!CloseHandle(f->hFile))
PrintError(__func__);
}
projects / fio.git / blobdiff