SSLClientSocket::IsConnected should care for internal buffers

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 45 matching lines @@
  * memio did not result in PR_WOULD_BLOCK_ERROR, returns 0.
  */
 int memio_GetReadRequest(memio_Private *secret);
 
 /* Ask memio where to put bytes from the network, and how many it can handle.
  * Returns bytes available to write, or 0 if none available.
  * Puts current buffer position into *buf.
  */
 int memio_GetReadParams(memio_Private *secret, char **buf);
 
+/* Ask memio how many bytes are contained in the internal buffer.
+ * Returns bytes available to read, or 0 if none available.
+ */
+int memio_GetReadableBufferSize(memio_Private *secret);
+
 /* Tell memio how many bytes were read from the network.
  * If bytes_read is 0, causes EOF to be reported to
  * NSS after it reads the last byte from the circular buffer.
  * If bytes_read 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_PutReadResult(memio_Private *secret, int bytes_read);
 
@@ skipping 11 matching lines @@
  * 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);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif