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-rw-r--r--engines/sync.c472
1 files changed, 0 insertions, 472 deletions
diff --git a/engines/sync.c b/engines/sync.c
deleted file mode 100644
index e76bbbb4..00000000
--- a/engines/sync.c
+++ /dev/null
@@ -1,472 +0,0 @@
-/*
- * sync/psync engine
- *
- * IO engine that does regular read(2)/write(2) with lseek(2) to transfer
- * data and IO engine that does regular pread(2)/pwrite(2) to transfer data.
- *
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/uio.h>
-#include <errno.h>
-#include <assert.h>
-
-#include "../fio.h"
-#include "../optgroup.h"
-
-/*
- * Sync engine uses engine_data to store last offset
- */
-#define LAST_POS(f) ((f)->engine_pos)
-
-struct syncio_data {
- struct iovec *iovecs;
- struct io_u **io_us;
- unsigned int queued;
- unsigned int events;
- unsigned long queued_bytes;
-
- unsigned long long last_offset;
- struct fio_file *last_file;
- enum fio_ddir last_ddir;
-};
-
-#ifdef FIO_HAVE_PWRITEV2
-struct psyncv2_options {
- void *pad;
- unsigned int hipri;
-};
-
-static struct fio_option options[] = {
- {
- .name = "hipri",
- .lname = "RWF_HIPRI",
- .type = FIO_OPT_STR_SET,
- .off1 = offsetof(struct psyncv2_options, hipri),
- .help = "Set RWF_HIPRI for pwritev2/preadv2",
- .category = FIO_OPT_C_ENGINE,
- .group = FIO_OPT_G_INVALID,
- },
- {
- .name = NULL,
- },
-};
-#endif
-
-static int fio_syncio_prep(struct thread_data *td, struct io_u *io_u)
-{
- struct fio_file *f = io_u->file;
-
- if (!ddir_rw(io_u->ddir))
- return 0;
-
- if (LAST_POS(f) != -1ULL && LAST_POS(f) == io_u->offset)
- return 0;
-
- if (lseek(f->fd, io_u->offset, SEEK_SET) == -1) {
- td_verror(td, errno, "lseek");
- return 1;
- }
-
- return 0;
-}
-
-static int fio_io_end(struct thread_data *td, struct io_u *io_u, int ret)
-{
- if (io_u->file && ret >= 0 && ddir_rw(io_u->ddir))
- LAST_POS(io_u->file) = io_u->offset + ret;
-
- if (ret != (int) io_u->xfer_buflen) {
- if (ret >= 0) {
- io_u->resid = io_u->xfer_buflen - ret;
- io_u->error = 0;
- return FIO_Q_COMPLETED;
- } else
- io_u->error = errno;
- }
-
- if (io_u->error) {
- io_u_log_error(td, io_u);
- td_verror(td, io_u->error, "xfer");
- }
-
- return FIO_Q_COMPLETED;
-}
-
-#ifdef CONFIG_PWRITEV
-static int fio_pvsyncio_queue(struct thread_data *td, struct io_u *io_u)
-{
- struct syncio_data *sd = td->io_ops_data;
- struct iovec *iov = &sd->iovecs[0];
- struct fio_file *f = io_u->file;
- int ret;
-
- fio_ro_check(td, io_u);
-
- iov->iov_base = io_u->xfer_buf;
- iov->iov_len = io_u->xfer_buflen;
-
- if (io_u->ddir == DDIR_READ)
- ret = preadv(f->fd, iov, 1, io_u->offset);
- else if (io_u->ddir == DDIR_WRITE)
- ret = pwritev(f->fd, iov, 1, io_u->offset);
- else if (io_u->ddir == DDIR_TRIM) {
- do_io_u_trim(td, io_u);
- return FIO_Q_COMPLETED;
- } else
- ret = do_io_u_sync(td, io_u);
-
- return fio_io_end(td, io_u, ret);
-}
-#endif
-
-#ifdef FIO_HAVE_PWRITEV2
-static int fio_pvsyncio2_queue(struct thread_data *td, struct io_u *io_u)
-{
- struct syncio_data *sd = td->io_ops_data;
- struct psyncv2_options *o = td->eo;
- struct iovec *iov = &sd->iovecs[0];
- struct fio_file *f = io_u->file;
- int ret, flags = 0;
-
- fio_ro_check(td, io_u);
-
- if (o->hipri)
- flags |= RWF_HIPRI;
-
- iov->iov_base = io_u->xfer_buf;
- iov->iov_len = io_u->xfer_buflen;
-
- if (io_u->ddir == DDIR_READ)
- ret = preadv2(f->fd, iov, 1, io_u->offset, flags);
- else if (io_u->ddir == DDIR_WRITE)
- ret = pwritev2(f->fd, iov, 1, io_u->offset, flags);
- else if (io_u->ddir == DDIR_TRIM) {
- do_io_u_trim(td, io_u);
- return FIO_Q_COMPLETED;
- } else
- ret = do_io_u_sync(td, io_u);
-
- return fio_io_end(td, io_u, ret);
-}
-#endif
-
-
-static int fio_psyncio_queue(struct thread_data *td, struct io_u *io_u)
-{
- struct fio_file *f = io_u->file;
- int ret;
-
- fio_ro_check(td, io_u);
-
- if (io_u->ddir == DDIR_READ)
- ret = pread(f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
- else if (io_u->ddir == DDIR_WRITE)
- ret = pwrite(f->fd, io_u->xfer_buf, io_u->xfer_buflen, io_u->offset);
- else if (io_u->ddir == DDIR_TRIM) {
- do_io_u_trim(td, io_u);
- return FIO_Q_COMPLETED;
- } else
- ret = do_io_u_sync(td, io_u);
-
- return fio_io_end(td, io_u, ret);
-}
-
-static int fio_syncio_queue(struct thread_data *td, struct io_u *io_u)
-{
- struct fio_file *f = io_u->file;
- int ret;
-
- fio_ro_check(td, io_u);
-
- if (io_u->ddir == DDIR_READ)
- ret = read(f->fd, io_u->xfer_buf, io_u->xfer_buflen);
- else if (io_u->ddir == DDIR_WRITE)
- ret = write(f->fd, io_u->xfer_buf, io_u->xfer_buflen);
- else if (io_u->ddir == DDIR_TRIM) {
- do_io_u_trim(td, io_u);
- return FIO_Q_COMPLETED;
- } else
- ret = do_io_u_sync(td, io_u);
-
- return fio_io_end(td, io_u, ret);
-}
-
-static int fio_vsyncio_getevents(struct thread_data *td, unsigned int min,
- unsigned int max,
- const struct timespec fio_unused *t)
-{
- struct syncio_data *sd = td->io_ops_data;
- int ret;
-
- if (min) {
- ret = sd->events;
- sd->events = 0;
- } else
- ret = 0;
-
- dprint(FD_IO, "vsyncio_getevents: min=%d,max=%d: %d\n", min, max, ret);
- return ret;
-}
-
-static struct io_u *fio_vsyncio_event(struct thread_data *td, int event)
-{
- struct syncio_data *sd = td->io_ops_data;
-
- return sd->io_us[event];
-}
-
-static int fio_vsyncio_append(struct thread_data *td, struct io_u *io_u)
-{
- struct syncio_data *sd = td->io_ops_data;
-
- if (ddir_sync(io_u->ddir))
- return 0;
-
- if (io_u->offset == sd->last_offset && io_u->file == sd->last_file &&
- io_u->ddir == sd->last_ddir)
- return 1;
-
- return 0;
-}
-
-static void fio_vsyncio_set_iov(struct syncio_data *sd, struct io_u *io_u,
- int idx)
-{
- sd->io_us[idx] = io_u;
- sd->iovecs[idx].iov_base = io_u->xfer_buf;
- sd->iovecs[idx].iov_len = io_u->xfer_buflen;
- sd->last_offset = io_u->offset + io_u->xfer_buflen;
- sd->last_file = io_u->file;
- sd->last_ddir = io_u->ddir;
- sd->queued_bytes += io_u->xfer_buflen;
- sd->queued++;
-}
-
-static int fio_vsyncio_queue(struct thread_data *td, struct io_u *io_u)
-{
- struct syncio_data *sd = td->io_ops_data;
-
- fio_ro_check(td, io_u);
-
- if (!fio_vsyncio_append(td, io_u)) {
- dprint(FD_IO, "vsyncio_queue: no append (%d)\n", sd->queued);
- /*
- * If we can't append and have stuff queued, tell fio to
- * commit those first and then retry this io
- */
- if (sd->queued)
- return FIO_Q_BUSY;
- if (ddir_sync(io_u->ddir)) {
- int ret = do_io_u_sync(td, io_u);
-
- return fio_io_end(td, io_u, ret);
- }
-
- sd->queued = 0;
- sd->queued_bytes = 0;
- fio_vsyncio_set_iov(sd, io_u, 0);
- } else {
- if (sd->queued == td->o.iodepth) {
- dprint(FD_IO, "vsyncio_queue: max depth %d\n", sd->queued);
- return FIO_Q_BUSY;
- }
-
- dprint(FD_IO, "vsyncio_queue: append\n");
- fio_vsyncio_set_iov(sd, io_u, sd->queued);
- }
-
- dprint(FD_IO, "vsyncio_queue: depth now %d\n", sd->queued);
- return FIO_Q_QUEUED;
-}
-
-/*
- * Check that we transferred all bytes, or saw an error, etc
- */
-static int fio_vsyncio_end(struct thread_data *td, ssize_t bytes)
-{
- struct syncio_data *sd = td->io_ops_data;
- struct io_u *io_u;
- unsigned int i;
- int err;
-
- /*
- * transferred everything, perfect
- */
- if (bytes == sd->queued_bytes)
- return 0;
-
- err = errno;
- for (i = 0; i < sd->queued; i++) {
- io_u = sd->io_us[i];
-
- if (bytes == -1) {
- io_u->error = err;
- } else {
- unsigned int this_io;
-
- this_io = bytes;
- if (this_io > io_u->xfer_buflen)
- this_io = io_u->xfer_buflen;
-
- io_u->resid = io_u->xfer_buflen - this_io;
- io_u->error = 0;
- bytes -= this_io;
- }
- }
-
- if (bytes == -1) {
- td_verror(td, err, "xfer vsync");
- return -err;
- }
-
- return 0;
-}
-
-static int fio_vsyncio_commit(struct thread_data *td)
-{
- struct syncio_data *sd = td->io_ops_data;
- struct fio_file *f;
- ssize_t ret;
-
- if (!sd->queued)
- return 0;
-
- io_u_mark_submit(td, sd->queued);
- f = sd->last_file;
-
- if (lseek(f->fd, sd->io_us[0]->offset, SEEK_SET) == -1) {
- int err = -errno;
-
- td_verror(td, errno, "lseek");
- return err;
- }
-
- if (sd->last_ddir == DDIR_READ)
- ret = readv(f->fd, sd->iovecs, sd->queued);
- else
- ret = writev(f->fd, sd->iovecs, sd->queued);
-
- dprint(FD_IO, "vsyncio_commit: %d\n", (int) ret);
- sd->events = sd->queued;
- sd->queued = 0;
- return fio_vsyncio_end(td, ret);
-}
-
-static int fio_vsyncio_init(struct thread_data *td)
-{
- struct syncio_data *sd;
-
- sd = malloc(sizeof(*sd));
- memset(sd, 0, sizeof(*sd));
- sd->last_offset = -1ULL;
- sd->iovecs = malloc(td->o.iodepth * sizeof(struct iovec));
- sd->io_us = malloc(td->o.iodepth * sizeof(struct io_u *));
-
- td->io_ops_data = sd;
- return 0;
-}
-
-static void fio_vsyncio_cleanup(struct thread_data *td)
-{
- struct syncio_data *sd = td->io_ops_data;
-
- if (sd) {
- free(sd->iovecs);
- free(sd->io_us);
- free(sd);
- }
-}
-
-static struct ioengine_ops ioengine_rw = {
- .name = "sync",
- .version = FIO_IOOPS_VERSION,
- .prep = fio_syncio_prep,
- .queue = fio_syncio_queue,
- .open_file = generic_open_file,
- .close_file = generic_close_file,
- .get_file_size = generic_get_file_size,
- .flags = FIO_SYNCIO,
-};
-
-static struct ioengine_ops ioengine_prw = {
- .name = "psync",
- .version = FIO_IOOPS_VERSION,
- .queue = fio_psyncio_queue,
- .open_file = generic_open_file,
- .close_file = generic_close_file,
- .get_file_size = generic_get_file_size,
- .flags = FIO_SYNCIO,
-};
-
-static struct ioengine_ops ioengine_vrw = {
- .name = "vsync",
- .version = FIO_IOOPS_VERSION,
- .init = fio_vsyncio_init,
- .cleanup = fio_vsyncio_cleanup,
- .queue = fio_vsyncio_queue,
- .commit = fio_vsyncio_commit,
- .event = fio_vsyncio_event,
- .getevents = fio_vsyncio_getevents,
- .open_file = generic_open_file,
- .close_file = generic_close_file,
- .get_file_size = generic_get_file_size,
- .flags = FIO_SYNCIO,
-};
-
-#ifdef CONFIG_PWRITEV
-static struct ioengine_ops ioengine_pvrw = {
- .name = "pvsync",
- .version = FIO_IOOPS_VERSION,
- .init = fio_vsyncio_init,
- .cleanup = fio_vsyncio_cleanup,
- .queue = fio_pvsyncio_queue,
- .open_file = generic_open_file,
- .close_file = generic_close_file,
- .get_file_size = generic_get_file_size,
- .flags = FIO_SYNCIO,
-};
-#endif
-
-#ifdef FIO_HAVE_PWRITEV2
-static struct ioengine_ops ioengine_pvrw2 = {
- .name = "pvsync2",
- .version = FIO_IOOPS_VERSION,
- .init = fio_vsyncio_init,
- .cleanup = fio_vsyncio_cleanup,
- .queue = fio_pvsyncio2_queue,
- .open_file = generic_open_file,
- .close_file = generic_close_file,
- .get_file_size = generic_get_file_size,
- .flags = FIO_SYNCIO,
- .options = options,
- .option_struct_size = sizeof(struct psyncv2_options),
-};
-#endif
-
-static void fio_init fio_syncio_register(void)
-{
- register_ioengine(&ioengine_rw);
- register_ioengine(&ioengine_prw);
- register_ioengine(&ioengine_vrw);
-#ifdef CONFIG_PWRITEV
- register_ioengine(&ioengine_pvrw);
-#endif
-#ifdef FIO_HAVE_PWRITEV2
- register_ioengine(&ioengine_pvrw2);
-#endif
-}
-
-static void fio_exit fio_syncio_unregister(void)
-{
- unregister_ioengine(&ioengine_rw);
- unregister_ioengine(&ioengine_prw);
- unregister_ioengine(&ioengine_vrw);
-#ifdef CONFIG_PWRITEV
- unregister_ioengine(&ioengine_pvrw);
-#endif
-#ifdef FIO_HAVE_PWRITEV2
- unregister_ioengine(&ioengine_pvrw2);
-#endif
-}
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