# HG changeset patch
# User asl
# Date 1076948745 0
# Node ID 6324598456d04820a655c8ea733744f0dbd3abd9
# Parent  3c206814d8667973867759a14fa05c4e039e9781
       * src/io.cxx (readwritev): For EWOULDBLOCK and EAGAIN return
       the number of bytes written if any have been written.

diff --git a/packages/io/fileio/current/ChangeLog b/packages/io/fileio/current/ChangeLog
--- a/packages/io/fileio/current/ChangeLog
+++ b/packages/io/fileio/current/ChangeLog
@@ -1,3 +1,8 @@
+2004-02-16  Andrew Lunn  <andrew.lunn@ascom.ch>
+
+	* src/io.cxx (readwritev): For EWOULDBLOCK and EAGAIN return
+	the number of bytes written if any have been written.
+
 2004-01-07  Jonathan Larmour  <jifl@eCosCentric.com>
 
 	* src/select.cxx: No need to make pselect() dependent on
diff --git a/packages/io/fileio/current/src/io.cxx b/packages/io/fileio/current/src/io.cxx
--- a/packages/io/fileio/current/src/io.cxx
+++ b/packages/io/fileio/current/src/io.cxx
@@ -143,7 +143,12 @@ readwritev( int fd, const cyg_iovec *_io
     CYG_CANCELLATION_POINT;
 
     if( ret != 0 )
-        FILEIO_RETURN(ret);
+    {
+        if ((ret == EWOULDBLOCK || ret == EAGAIN) && cnt)
+            FILEIO_RETURN_VALUE(cnt);
+        else
+            FILEIO_RETURN(ret);
+    }
  
     FILEIO_RETURN_VALUE(cnt);
 }