syslet: error handling

[fio.git] / engines / syslet-rw.c

diff --git a/engines/syslet-rw.c b/engines/syslet-rw.c
index 2e23fc937fee6fca810c694f0dfa7f96563bbb4d..e3be4859503bc9e897c1f7bd29e118f07d0d3734 100644 (file)
--- a/engines/syslet-rw.c
+++ b/engines/syslet-rw.c
@@ -35,7 +35,7 @@ struct syslet_data {
        void *stack;
 };
 
-static void fio_syslet_complete(struct thread_data *td, struct io_u *io_u)
+static void fio_syslet_add_event(struct thread_data *td, struct io_u *io_u)
 {
        struct syslet_data *sd = td->io_ops->data;
 
@@ -43,7 +43,7 @@ static void fio_syslet_complete(struct thread_data *td, struct io_u *io_u)
        sd->events[sd->nr_events++] = io_u;
 }
 
-static void syslet_complete_nr(struct thread_data *td, unsigned int nr)
+static void fio_syslet_add_events(struct thread_data *td, unsigned int nr)
 {
        struct syslet_data *sd = td->io_ops->data;
        unsigned int i;
@@ -52,13 +52,21 @@ static void syslet_complete_nr(struct thread_data *td, unsigned int nr)
                unsigned int idx = (i + sd->ring->user_tail) % td->o.iodepth;
                struct syslet_completion *comp = &sd->ring->comp[idx];
                struct io_u *io_u = (struct io_u *) (long) comp->caller_data;
+               long ret;
+
+               ret = comp->status;
+               if (ret <= 0) {
+                       io_u->resid = io_u->xfer_buflen;
+                       io_u->error = -ret;
+               } else {
+                       io_u->resid = io_u->xfer_buflen - ret;
+                       io_u->error = 0;
+               }
 
-               io_u->resid = io_u->xfer_buflen - comp->status;
-               fio_syslet_complete(td, io_u);
+               fio_syslet_add_event(td, io_u);
        }
 }
 
-
 static void fio_syslet_wait_for_events(struct thread_data *td)
 {
        struct syslet_data *sd = td->io_ops->data;
@@ -76,7 +84,7 @@ static void fio_syslet_wait_for_events(struct thread_data *td)
                if (ring->user_tail != kh) {
                        unsigned int nr = kh - ring->user_tail;
 
-                       syslet_complete_nr(td, nr);
+                       fio_syslet_add_events(td, nr);
                        events += nr;
                        ring->user_tail = kh;
                        continue;