Expanded the scope of the stream system to include positional functions. Updated

the Connection class so that it won't die horribly if you don't provide the
pointers to updatable memory for the amount of time not spent waiting for data
during a read.
Also fiddled with the http test, as you can see...nothing important.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/stream.h b/src/stream.h
index 086e4a1..32e5432 100644
--- a/src/stream.h
+++ b/src/stream.h
@@ -12,7 +12,12 @@ public:
 
         virtual void close() = 0;
         virtual size_t read( char *pBuf, size_t nBytes ) = 0;
-        virtual size_t write( char *pBuf, size_t nBytes ) = 0;
+        virtual size_t write( const char *pBuf, size_t nBytes ) = 0;
+
+        virtual long tell() = 0;
+        virtual void seek( long offset ) = 0;
+        virtual void setPos( long pos ) = 0;
+        virtual void setPosEnd( long pos ) = 0;
 
 private: