Rename EncodedData -> Data and trim it a bit.

1 files changed, 81 insertions, 0 deletions

diff --git a/src/lib/data.cc b/src/lib/data.cc
new file mode 100644
index 000000000..e117199a1
--- /dev/null
+++ b/src/lib/data.cc
@@ -0,0 +1,81 @@
+/*
+    Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "data.h"
+#include "cross.h"
+#include "exceptions.h"
+
+#include "i18n.h"
+
+using boost::shared_array;
+
+Data::Data (int size)
+	: _data (new uint8_t[size])
+	, _size (size)
+{
+
+}
+
+Data::Data (uint8_t const * data, int size)
+	: _data (new uint8_t[size])
+	, _size (size)
+{
+	memcpy (_data.get(), data, size);
+}
+
+Data::Data (boost::filesystem::path file)
+{
+	_size = boost::filesystem::file_size (file);
+	_data.reset (new uint8_t[_size]);
+
+	FILE* f = fopen_boost (file, "rb");
+	if (!f) {
+		throw FileError (_("could not open file for reading"), file);
+	}
+	
+	size_t const r = fread (_data.get(), 1, _size, f);
+	if (r != size_t (_size)) {
+		fclose (f);
+		throw FileError (_("could not read from file"), file);
+	}
+		
+	fclose (f);
+}
+
+void
+Data::write (boost::filesystem::path file) const
+{
+	FILE* f = fopen_boost (file, "wb");
+	if (!f) {
+		throw WriteFileError (file, errno);
+	}
+	size_t const r = fwrite (_data.get(), 1, _size, f);
+	if (r != size_t (_size)) {
+		fclose (f);
+		throw FileError ("could not write to file", file);
+	}
+	fclose (f);
+}
+
+void
+Data::write_via_temp (boost::filesystem::path temp, boost::filesystem::path final) const
+{
+	write (temp);
+	boost::filesystem::rename (temp, final);
+}