#include "fio.h"
#include "os.h"
+#ifdef FIO_HAVE_SPLICE
+
struct spliceio_data {
struct io_u *last_io_u;
int pipe[2];
};
-static int fio_spliceio_sync(struct thread_data *td)
-{
- return fsync(td->fd);
-}
-
static int fio_spliceio_getevents(struct thread_data *td, int fio_unused min,
int max, struct timespec fio_unused *t)
{
static int fio_splice_read(struct thread_data *td, struct io_u *io_u)
{
struct spliceio_data *sd = td->io_ops->data;
+ struct fio_file *f = io_u->file;
int ret, ret2, buflen;
off_t offset;
void *p;
if (this_len > SPLICE_DEF_SIZE)
this_len = SPLICE_DEF_SIZE;
- ret = splice(td->fd, &offset, sd->pipe[1], NULL, this_len, SPLICE_F_MORE);
+ ret = splice(f->fd, &offset, sd->pipe[1], NULL, this_len, SPLICE_F_MORE);
if (ret < 0) {
if (errno == ENODATA || errno == EAGAIN)
continue;
}
};
struct pollfd pfd = { .fd = sd->pipe[1], .events = POLLOUT, };
+ struct fio_file *f = io_u->file;
off_t off = io_u->offset;
int ret, ret2;
iov[0].iov_base += ret;
while (ret) {
- ret2 = splice(sd->pipe[0], NULL, td->fd, &off, ret, 0);
+ ret2 = splice(sd->pipe[0], NULL, f->fd, &off, ret, 0);
if (ret2 < 0)
return errno;
static int fio_spliceio_queue(struct thread_data *td, struct io_u *io_u)
{
struct spliceio_data *sd = td->io_ops->data;
- int ret;
+ unsigned int ret;
if (io_u->ddir == DDIR_READ)
ret = fio_splice_read(td, io_u);
- else
+ else if (io_u->ddir == DDIR_WRITE)
ret = fio_splice_write(td, io_u);
+ else
+ ret = fsync(io_u->file->fd);
- if ((unsigned int) ret != io_u->buflen) {
+ if (ret != io_u->buflen) {
if (ret > 0) {
io_u->resid = io_u->buflen - ret;
io_u->error = ENODATA;
.getevents = fio_spliceio_getevents,
.event = fio_spliceio_event,
.cleanup = fio_spliceio_cleanup,
- .sync = fio_spliceio_sync,
.flags = FIO_SYNCIO,
};
+
+#else /* FIO_HAVE_SPLICE */
+
+/*
+ * When we have a proper configure system in place, we simply wont build
+ * and install this io engine. For now install a crippled version that
+ * just complains and fails to load.
+ */
+static int fio_spliceio_init(struct thread_data fio_unused *td)
+{
+ fprintf(stderr, "fio: splice not available\n");
+ return 1;
+}
+
+struct ioengine_ops ioengine = {
+ .name = "splice",
+ .version = FIO_IOOPS_VERSION,
+ .init = fio_spliceio_init,
+};
+
+#endif