mirror of https://github.com/libAthena/athena.git
126 lines
2.4 KiB
C++
126 lines
2.4 KiB
C++
#include "athena/FileWriter.hpp"
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#if __APPLE__ || __FreeBSD__
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#include "osx_largefilewrapper.h"
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#elif GEKKO
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#include "gekko_support.h"
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#include "osx_largefilewrapper.h"
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#endif
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namespace athena
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{
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namespace io
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{
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FileWriter::FileWriter(const std::string& filename, bool overwrite, bool globalErr)
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: m_fileHandle(NULL),
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m_bytePosition(0),
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m_globalErr(globalErr)
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{
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m_filename = filename;
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open(overwrite);
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}
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FileWriter::FileWriter(const std::wstring& filename, bool overwrite, bool globalErr)
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: m_fileHandle(NULL),
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m_bytePosition(0),
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m_globalErr(globalErr)
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{
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m_filename = utility::wideToUtf8(filename);
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open(overwrite);
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}
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FileWriter::~FileWriter()
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{
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if (isOpen())
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close();
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}
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void FileWriter::open(bool overwrite)
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{
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if (overwrite)
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m_fileHandle = fopen(m_filename.c_str(), "w+b");
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else
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{
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m_fileHandle = fopen(m_filename.c_str(), "a+b");
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if (m_fileHandle)
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{
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fclose(m_fileHandle);
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m_fileHandle = fopen(m_filename.c_str(), "r+b");
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}
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}
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if (!m_fileHandle)
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{
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if (m_globalErr)
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atError("Unable to open file '%s'", filename().c_str());
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setError();
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return;
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}
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// reset error
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m_hasError = false;
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}
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void FileWriter::close()
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{
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if (!m_fileHandle)
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{
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if (m_globalErr)
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atError("Cannot close an unopened stream");
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setError();
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return;
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}
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fclose(m_fileHandle);
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m_fileHandle = NULL;
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}
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void FileWriter::seek(atInt64 pos, SeekOrigin origin)
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{
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if (!isOpen())
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{
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if (m_globalErr)
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atError("Unable to seek in file, not open");
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setError();
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return;
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}
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if (fseeko64(m_fileHandle, pos, (int)origin) != 0)
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{
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if (m_globalErr)
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atError("Unable to seek in file");
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setError();
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}
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}
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atUint64 FileWriter::position() const
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{
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return ftello64(m_fileHandle);
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}
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atUint64 FileWriter::length() const
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{
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return utility::fileSize(m_filename);
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}
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void FileWriter::writeUBytes(const atUint8* data, atUint64 len)
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{
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if (!isOpen())
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{
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if (m_globalErr)
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atError("File not open for writing");
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setError();
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return;
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}
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if (fwrite(data, 1, len, m_fileHandle) != len)
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{
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if (m_globalErr)
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atError("Unable to write to stream");
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setError();
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}
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}
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}
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} // Athena
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