X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;ds=sidebyside;f=source%2Fio%2Ffile.h;h=4f8e5ddf8612b559f82ce5bfc7c2623ba5860cc9;hb=fd074aa05df58fd60d490bb4e367aa2c82338741;hp=cd547b37545cb23b6f0c3842c512a7cf13847905;hpb=e4afb5edb0b7834ef4872218c99207e6b589e9ce;p=libs%2Fcore.git

diff --git a/source/io/file.h b/source/io/file.h
index cd547b3..4f8e5dd 100644
--- a/source/io/file.h
+++ b/source/io/file.h
@@ -17,6 +17,12 @@ public:
 	file_not_found(const std::string &fn): std::runtime_error(fn) { }
 };
 
+class file_already_exists: public std::runtime_error
+{
+public:
+	file_already_exists(const std::string &fn): std::runtime_error(fn) { }
+};
+
 
 /**
 A class for reading and writing files.
@@ -30,7 +36,8 @@ public:
 	{
 		C_NONE = 0,
 		C_CREATE = 1,
-		C_TRUNCATE = 2
+		C_TRUNCATE = 2,
+		C_EXCLUSIVE = 4
 	};
 
 private:
@@ -55,8 +62,7 @@ public:
 	virtual SeekOffset seek(SeekOffset, SeekType);
 	virtual SeekOffset tell() const;
 
-private:
-	void check_access(Mode) const;
+	virtual const Handle &get_handle(Mode);
 };
 
 inline File::CreateMode operator|(File::CreateMode m, File::CreateMode n)