Stop attempting to write to transport sockets in NSS on failure.

net/base/nss_memio.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 // Written in NSPR style to also be suitable for adding to the NSS demo suite
 
 #ifndef __MEMIO_H
 #define __MEMIO_H
 
 #include <stddef.h>
 
@@ skipping 76 matching lines @@
                           const char **buf2, unsigned int *len2);
 
 /* Tell memio how many bytes were sent to the network.
  * If bytes_written is < 0, it is treated as an NSPR error code.
  * See nspr/pr/src/md/unix/unix_errors.c for how to
  * map from Unix errors to NSPR error codes.
  * On EWOULDBLOCK or the equivalent, don't call this function.
  */
 void memio_PutWriteResult(memio_Private *secret, int bytes_written);
 
+/* Returns the last saved write error from memio_PutWriteResult or 0 if there
+ * has been no error.

[wtc, 2014/06/17 18:24:06]

Please clarify that the error is an NSPR error code.

[davidben, 2014/06/17 20:27:43]

Squashed into memio_GetWriteParams and clarified there.

+ */
+int memio_LastWriteError(memio_Private *secret);
+
 #ifdef __cplusplus
 }
 #endif
 
 #endif