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vcmi/lib/serializer/CSaveFile.cpp
2024-02-02 13:09:12 +02:00

73 lines
1.6 KiB
C++

/*
* CSaveFile.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "CSaveFile.h"
VCMI_LIB_NAMESPACE_BEGIN
CSaveFile::CSaveFile(const boost::filesystem::path &fname)
: serializer(this)
{
openNextFile(fname);
}
//must be instantiated in .cpp file for access to complete types of all member fields
CSaveFile::~CSaveFile() = default;
int CSaveFile::write(const std::byte * data, unsigned size)
{
sfile->write(reinterpret_cast<const char *>(data), size);
return size;
}
void CSaveFile::openNextFile(const boost::filesystem::path &fname)
{
fName = fname;
try
{
sfile = std::make_unique<std::fstream>(fname.c_str(), std::ios::out | std::ios::binary);
sfile->exceptions(std::ifstream::failbit | std::ifstream::badbit); //we throw a lot anyway
if(!(*sfile))
THROW_FORMAT("Error: cannot open to write %s!", fname);
sfile->write("VCMI",4); //write magic identifier
serializer & ESerializationVersion::CURRENT; //write format version
}
catch(...)
{
logGlobal->error("Failed to save to %s", fname.string());
clear();
throw;
}
}
void CSaveFile::reportState(vstd::CLoggerBase * out)
{
out->debug("CSaveFile");
if(sfile.get() && *sfile)
{
out->debug("\tOpened %s \tPosition: %d", fName, sfile->tellp());
}
}
void CSaveFile::clear()
{
fName.clear();
sfile = nullptr;
}
void CSaveFile::putMagicBytes(const std::string &text)
{
write(reinterpret_cast<const std::byte*>(text.c_str()), text.length());
}
VCMI_LIB_NAMESPACE_END