X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Fio%2Fbase.h;h=c58be90f7ebd039504e261105e53dc7329a1ac13;hp=394a2c2306e60ebbe9f8bb7ddee0e1d4f37b4403;hb=169ece8b190040c4b61d68122c4ead1ba266cf79;hpb=0793fb99ee8c55c7ffe96bca902632f328e10edb

diff --git a/source/io/base.h b/source/io/base.h
index 394a2c2..c58be90 100644
--- a/source/io/base.h
+++ b/source/io/base.h
@@ -2,6 +2,7 @@
 #define MSP_IO_BASE_H_
 
 #include <sigc++/sigc++.h>
+#include <msp/core/mutex.h>
 #include "handle.h"
 #include "mode.h"
 #include "poll.h"
@@ -18,6 +19,18 @@ leaving stale pointers in an EventDispatcher.
 class Base
 {
 public:
+	/** RAII synchronization primitive.  Prevents concurrent access to the
+	target object during the lifetime of the Synchronize object. */
+	class Synchronize
+	{
+	private:
+		Base &io;
+
+	public:
+		Synchronize(Base &);
+		~Synchronize();
+	};
+
 	/** Emitted when there is no more data to be read. */
 	sigc::signal<void> signal_end_of_file;
 
@@ -32,6 +45,7 @@ public:
 protected:
 	Mode mode;
 	bool eof_flag;
+	Mutex *mutex;
 
 	Base();
 private: