88 lines
2.2 KiB
C++
88 lines
2.2 KiB
C++
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// Copyright (c) 2010, Amar Takhar <verm@aegisub.org>
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//
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// Permission to use, copy, modify, and distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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// $Id$
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/// @file io.cpp
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/// @brief Unix IO methods.
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/// @ingroup libaegisub unix
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#ifndef LAGI_PRE
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#include <sys/stat.h>
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#include <errno.h>
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#include <iostream>
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#include <fstream>
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#endif
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#include "libaegisub/io.h"
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#include "libaegisub/util.h"
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namespace agi {
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namespace io {
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std::ifstream* Open(const std::string &file) {
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acs::CheckFileRead(file);
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std::ifstream *stream = new std::ifstream(file.c_str());
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if (stream->fail())
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throw IOFatal("Unknown fatal error as occurred");
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return stream;
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}
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Save::Save(const std::string& file): file_name(file) {
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const std::string pwd = util::DirName(file);
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acs::CheckDirWrite(pwd.c_str());
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try {
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acs::CheckFileWrite(file);
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} catch (acs::AcsNotFound& e) {
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// If the file doesn't exist we create a 0 byte file, this so so
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// util::Rename will find it, and to let users know something went
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// wrong by leaving a 0 byte file.
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std::ofstream fp_touch(file.c_str());
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fp_touch.close();
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}
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/// @todo This is a temp hack, proper implementation needs to come after
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/// Windows support is added. The code in the destructor needs fixing
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/// as well.
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const std::string tmp = file + "_tmp";
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// This will open to file.XXXX. (tempfile)
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fp = new std::ofstream(tmp.c_str());
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}
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Save::~Save() {
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const std::string tmp(file_name + "_tmp");
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util::Rename(tmp, file_name);
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delete fp;
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fp = 0; // to avoid any silly errors.
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}
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std::ofstream& Save::Get() {
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return *fp;
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}
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} // namespace io
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} // namespace agi
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