Added fopen/fread/fwrite/fgets wrapper class.

1 files changed, 100 insertions, 0 deletions

diff --git a/src/BufferedFile.cc b/src/BufferedFile.cc
new file mode 100644
index 00000000..a12d46e7
--- /dev/null
+++ b/src/BufferedFile.cc
@@ -0,0 +1,100 @@
+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2011 Tatsuhiro Tsujikawa
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL.  If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so.  If you
+ * do not wish to do so, delete this exception statement from your
+ * version.  If you delete this exception statement from all source
+ * files in the program, then also delete it here.
+ */
+/* copyright --> */
+#include "BufferedFile.h"
+
+#include <cstring>
+
+#include "a2io.h"
+#include "util.h"
+
+namespace aria2 {
+
+const std::string BufferedFile::READ = "rb";
+const std::string BufferedFile::WRITE = "wb";
+
+BufferedFile::BufferedFile(const std::string& filename, const std::string& mode)
+{
+  fp_ = a2fopen(utf8ToWChar(filename).c_str(), utf8ToWChar(mode).c_str());
+  open_ = fp_;
+}
+
+BufferedFile::~BufferedFile()
+{
+  close();
+}
+
+BufferedFile::operator unspecified_bool_type() const
+{
+  return (!open_ || ferror(fp_) || feof(fp_)) ? 0 : &BufferedFile::good_state;
+}
+
+size_t BufferedFile::read(void* ptr, size_t count)
+{
+  return fread(ptr, 1, count, fp_);
+}
+
+size_t BufferedFile::write(const void* ptr, size_t count)
+{
+  return fwrite(ptr, 1, count, fp_);
+}
+
+char* BufferedFile::gets(char* s, int size)
+{
+  return fgets(s, size, fp_);
+}
+
+char* BufferedFile::getsn(char* s, int size)
+{
+  char* ptr = fgets(s, size, fp_);
+  if(ptr) {
+    int len = strlen(ptr);
+    if(ptr[len-1] == '\n') {
+      ptr[len-1] = '\0';
+    }
+  }
+  return ptr;
+}
+
+int BufferedFile::close()
+{
+  if(open_) {
+    open_ = false;
+    return fclose(fp_);
+  } else {
+    return 0;
+  }
+}
+
+} // namespace aria2