Give Data a loading constructor.

1 files changed, 42 insertions, 0 deletions

diff --git a/src/data.cc b/src/data.cc
new file mode 100644
index 00000000..7f390ead
--- /dev/null
+++ b/src/data.cc
@@ -0,0 +1,42 @@
+/*
+    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 "util.h"
+#include "exceptions.h"
+#include <cstdio>
+
+using namespace dcp;
+
+Data::Data (boost::filesystem::path file)
+{
+	FILE* f = fopen_boost (file, "rb");
+	if (!f) {
+		throw FileError ("could not open file for reading", file, errno);
+	}
+
+	size = boost::filesystem::file_size (file);
+	data.reset (new uint8_t[size]);
+	size_t const read = fread (data.get(), 1, size, f);
+	fclose (f);
+
+	if (read != size) {
+		throw FileError ("could not read file", file, -1);
+	}
+}