From d0bc8b3a951334471a81e099f15696c5353aac47 Mon Sep 17 00:00:00 2001
From: Vincent Richard <vincent@vincent-richard.net>
Date: Thu, 9 Apr 2009 18:15:50 +0000
Subject: [PATCH] Fixed block size through filtered streams.

---
 src/utility/filteredStream.cpp   | 16 ++++++++++++++++
 src/utility/stream.cpp           |  6 +++---
 vmime/utility/filteredStream.hpp |  4 ++++
 vmime/utility/stream.hpp         |  7 ++++---
 4 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/src/utility/filteredStream.cpp b/src/utility/filteredStream.cpp
index eda0c64c..5db01047 100644
--- a/src/utility/filteredStream.cpp
+++ b/src/utility/filteredStream.cpp
@@ -30,6 +30,22 @@ namespace vmime {
 namespace utility {
 
 
+// filteredInputStream
+
+stream::size_type filteredInputStream::getBlockSize()
+{
+	return std::min(inputStream::getBlockSize(), getPreviousInputStream().getBlockSize());
+}
+
+
+// filteredOutputStream
+
+stream::size_type filteredOutputStream::getBlockSize()
+{
+	return std::min(outputStream::getBlockSize(), getNextOutputStream().getBlockSize());
+}
+
+
 // dotFilteredInputStream
 
 dotFilteredInputStream::dotFilteredInputStream(inputStream& is)
diff --git a/src/utility/stream.cpp b/src/utility/stream.cpp
index bb5300ef..8fbf337b 100644
--- a/src/utility/stream.cpp
+++ b/src/utility/stream.cpp
@@ -38,7 +38,7 @@ namespace utility {
 
 // stream
 
-stream::size_type stream::getBlockSize() const
+stream::size_type stream::getBlockSize()
 {
 	return 32768;  // 32 KB
 }
@@ -468,7 +468,7 @@ void outputStreamSocketAdapter::flush()
 }
 
 
-stream::size_type outputStreamSocketAdapter::getBlockSize() const
+stream::size_type outputStreamSocketAdapter::getBlockSize()
 {
 	return 16384;  // 16 KB
 }
@@ -511,7 +511,7 @@ stream::size_type inputStreamSocketAdapter::skip
 }
 
 
-stream::size_type inputStreamSocketAdapter::getBlockSize() const
+stream::size_type inputStreamSocketAdapter::getBlockSize()
 {
 	return 16384;  // 16 KB
 }
diff --git a/vmime/utility/filteredStream.hpp b/vmime/utility/filteredStream.hpp
index 9f64ba95..1e03697a 100644
--- a/vmime/utility/filteredStream.hpp
+++ b/vmime/utility/filteredStream.hpp
@@ -41,6 +41,8 @@ class filteredInputStream : public inputStream
 {
 public:
 
+	virtual size_type getBlockSize();
+
 	/** Return a reference to the stream being filtered.
 	  *
 	  * @return stream being filtered
@@ -56,6 +58,8 @@ class filteredOutputStream : public outputStream
 {
 public:
 
+	virtual size_type getBlockSize();
+
 	/** Return a reference to the stream being filtered.
 	  *
 	  * @return destination stream for filtered data
diff --git a/vmime/utility/stream.hpp b/vmime/utility/stream.hpp
index a9c079ba..5f7bfa2c 100644
--- a/vmime/utility/stream.hpp
+++ b/vmime/utility/stream.hpp
@@ -77,7 +77,7 @@ public:
 	  *
 	  * @return block size, in bytes
 	  */
-	virtual size_type getBlockSize() const;
+	virtual size_type getBlockSize();
 };
 
 
@@ -239,6 +239,7 @@ public:
 	void write(const value_type* const data, const size_type count);
 	void flush();
 
+size_type getBlockSize(){return 8192;}
 private:
 
 	string& m_buffer;
@@ -402,7 +403,7 @@ public:
 	void write(const value_type* const data, const size_type count);
 	void flush();
 
-	size_type getBlockSize() const;
+	size_type getBlockSize();
 
 private:
 
@@ -426,7 +427,7 @@ public:
 	size_type read(value_type* const data, const size_type count);
 	size_type skip(const size_type count);
 
-	size_type getBlockSize() const;
+	size_type getBlockSize();
 
 private: