X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fwriter.h;h=5f32786f443b443f15c33d996ed070d10fb0461d;hb=fbe7e81c08a6b5a3f9ccdcbeb4dd4d351a5f4226;hp=df308266d976810217be152efec93d8f2a75b77a;hpb=8e3fad222e174b7c659fd3d994d54314657ed989;p=libs%2Fdatafile.git

diff --git a/source/writer.h b/source/writer.h
index df30826..5f32786 100644
--- a/source/writer.h
+++ b/source/writer.h
@@ -2,24 +2,25 @@
 #define MSP_DATAFILE_WRITER_H_
 
 #include <map>
+#include <msp/core/noncopyable.h>
 #include <msp/io/base.h>
 #include "output.h"
 
 namespace Msp {
 namespace DataFile {
 
-class Statement;
+struct Statement;
 class WriterMode;
 
 /**
 Frontend for writing data.
 */
-class Writer
+class Writer: private NonCopyable
 {
 private:
 	Output out;
-	WriterMode *mode;
-	bool binary;
+	WriterMode *mode = nullptr;
+	bool binary = false;
 
 public:
 	Writer(IO::Base &o);
@@ -39,6 +40,10 @@ public:
 	*/
 	void set_binary(bool b);
 
+	/** Enables output compression.  Once enabled, it won't be possible to
+	disable compression. */
+	void set_compressed();
+
 	/** Sets the precision of floating point numbers in bits.  Depending on the
 	mode not all values may be valid, but any value between 16 and 64 that is
 	divisible by 8 is guaranteed to work. */