[PATCH] Fix return value on aio_read/write success
Mark Geisert
mark@maxrnd.com
Sat Aug 4 08:44:00 GMT 2018
Oops. Something that iozone testing had found but I regarded as an
iozone bug. Re-reading the man pages set me straight.
---
winsup/cygwin/aio.cc | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/winsup/cygwin/aio.cc b/winsup/cygwin/aio.cc
index fe63dec04..571a9621b 100644
--- a/winsup/cygwin/aio.cc
+++ b/winsup/cygwin/aio.cc
@@ -712,7 +712,7 @@ aio_read (struct aiocb *aio)
; /* I think this is not possible */
}
- return res;
+ return res < 0 ? res : 0; /* Return 0 on success, not byte count */
}
ssize_t
@@ -902,7 +902,7 @@ aio_write (struct aiocb *aio)
; /* I think this is not possible */
}
- return res;
+ return res < 0 ? res : 0; /* Return 0 on success, not byte count */
}
int
--
2.17.0
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