forked from mia/Aegisub
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
|
|
//
|
|
// Permission to use, copy, modify, and distribute this software for any
|
|
// purpose with or without fee is hereby granted, provided that the above
|
|
// copyright notice and this permission notice appear in all copies.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
|
|
/// @file io.cpp
|
|
/// @brief Windows IO methods.
|
|
/// @ingroup libaegisub
|
|
|
|
#include "libaegisub/io.h"
|
|
|
|
#include <libaegisub/access.h>
|
|
#include "libaegisub/fs.h"
|
|
#include "libaegisub/log.h"
|
|
#include "libaegisub/path.h"
|
|
#include "libaegisub/util.h"
|
|
|
|
#include <boost/filesystem.hpp>
|
|
#include <boost/filesystem/fstream.hpp>
|
|
|
|
namespace agi {
|
|
namespace io {
|
|
|
|
std::unique_ptr<std::ifstream> Open(fs::path const& file, bool binary) {
|
|
LOG_D("agi/io/open/file") << file;
|
|
acs::CheckFileRead(file);
|
|
|
|
std::unique_ptr<std::ifstream> stream(
|
|
new boost::filesystem::ifstream(file, (binary ? std::ios::binary : std::ios::in)));
|
|
|
|
if (stream->fail())
|
|
throw IOFatal("Unknown fatal error as occurred");
|
|
|
|
return stream;
|
|
}
|
|
|
|
Save::Save(fs::path const& file, bool binary)
|
|
: file_name(file)
|
|
, tmp_name(unique_path(file.parent_path()/(file.stem().string() + "_tmp_%%%%" + file.extension().string())))
|
|
{
|
|
LOG_D("agi/io/save/file") << file;
|
|
acs::CheckDirWrite(file.parent_path());
|
|
|
|
try {
|
|
acs::CheckFileWrite(file);
|
|
}
|
|
catch (fs::FileNotFound const&) {
|
|
// Not an error
|
|
}
|
|
|
|
fp = util::make_unique<boost::filesystem::ofstream>(tmp_name, binary ? std::ios::binary : std::ios::out);
|
|
if (!fp->good())
|
|
throw fs::WriteDenied(tmp_name);
|
|
}
|
|
|
|
Save::~Save() {
|
|
fp->close(); // Need to close before rename on Windows to unlock the file
|
|
for (int i = 0; i < 10; ++i) {
|
|
try {
|
|
fs::Rename(tmp_name, file_name);
|
|
return;
|
|
}
|
|
catch (agi::fs::FileSystemError const&) {
|
|
// Retry up to ten times in case it's just locked by a poorly-written antivirus scanner
|
|
if (i == 9)
|
|
throw;
|
|
util::sleep_for(100);
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace io
|
|
} // namespace agi
|