From 8e50d1add66530dda0e9e42906e25cbe6f8f3449 Mon Sep 17 00:00:00 2001
From: Michael Wetherell <mike.wetherell@ntlworld.com>
Date: Wed, 30 Nov 2005 12:41:48 +0000
Subject: [PATCH] Make Eof() consistent with other streams

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36298 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 include/wx/mstream.h   |  1 -
 src/common/mstream.cpp |  5 -----
 src/common/zipstrm.cpp |  2 +-
 src/common/zstream.cpp | 16 +++++++++-------
 4 files changed, 10 insertions(+), 14 deletions(-)

diff --git a/include/wx/mstream.h b/include/wx/mstream.h
index d1b8a6230c..2857dc074d 100644
--- a/include/wx/mstream.h
+++ b/include/wx/mstream.h
@@ -27,7 +27,6 @@ public:
     wxMemoryInputStream(const wxMemoryOutputStream& stream);
     virtual ~wxMemoryInputStream();
     virtual wxFileOffset GetLength() const { return m_length; }
-    virtual bool Eof() const;
     virtual bool IsSeekable() const { return true; }
 
     char Peek();
diff --git a/src/common/mstream.cpp b/src/common/mstream.cpp
index ce78979686..ab50d84386 100644
--- a/src/common/mstream.cpp
+++ b/src/common/mstream.cpp
@@ -88,11 +88,6 @@ char wxMemoryInputStream::Peek()
     return buf[pos];
 }
 
-bool wxMemoryInputStream::Eof() const
-{
-    return !m_i_streambuf->GetBytesLeft();
-}
-
 size_t wxMemoryInputStream::OnSysRead(void *buffer, size_t nbytes)
 {
     size_t pos = m_i_streambuf->GetIntPosition();
diff --git a/src/common/zipstrm.cpp b/src/common/zipstrm.cpp
index 0eb50af0da..b39c285632 100644
--- a/src/common/zipstrm.cpp
+++ b/src/common/zipstrm.cpp
@@ -169,7 +169,7 @@ size_t wxStoredInputStream::OnSysRead(void *buffer, size_t size)
     count = m_parent_i_stream->Read(buffer, count).LastRead();
     m_pos += count;
 
-    if (m_pos == m_len)
+    if (m_pos == m_len && count < size)
         m_lasterror = wxSTREAM_EOF;
     else if (!*m_parent_i_stream)
         m_lasterror = wxSTREAM_READ_ERROR;
diff --git a/src/common/zstream.cpp b/src/common/zstream.cpp
index bea30dce41..083ac372fb 100644
--- a/src/common/zstream.cpp
+++ b/src/common/zstream.cpp
@@ -131,14 +131,16 @@ size_t wxZlibInputStream::OnSysRead(void *buffer, size_t size)
         break;
 
     case Z_STREAM_END:
-      // Unread any data taken from past the end of the deflate stream, so that
-      // any additional data can be read from the underlying stream (the crc
-      // in a gzip for example)
-      if (m_inflate->avail_in) {
-        m_parent_i_stream->Ungetch(m_inflate->next_in, m_inflate->avail_in);
-        m_inflate->avail_in = 0;
+      if (m_inflate->avail_out) {
+        // Unread any data taken from past the end of the deflate stream, so that
+        // any additional data can be read from the underlying stream (the crc
+        // in a gzip for example)
+        if (m_inflate->avail_in) {
+          m_parent_i_stream->Ungetch(m_inflate->next_in, m_inflate->avail_in);
+          m_inflate->avail_in = 0;
+        }
+        m_lasterror = wxSTREAM_EOF;
       }
-      m_lasterror = wxSTREAM_EOF;
       break;
 
     case Z_BUF_ERROR:
-- 
2.45.2