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VFS::TruncateFile() implemented

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This commit is contained in:
Nekotekina 2015-04-18 16:38:42 +03:00
parent b1f7543436
commit f2276bb70c
7 changed files with 117 additions and 54 deletions
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64
Utilities/rFile.cpp
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@ -21,7 +21,7 @@ std::unique_ptr<wchar_t> ConvertUTF8ToWChar(const std::string& source)
if (!MultiByteToWideChar(CP_UTF8, 0, source.c_str(), size, buffer.get(), size))
{
LOG_ERROR(GENERAL, "ConvertUTF8ToWChar(source='%s') failed: 0x%llx", source.c_str(), GET_API_ERROR);
LOG_ERROR(GENERAL, "ConvertUTF8ToWChar(source='%s') failed: 0x%llx", source, GET_API_ERROR);
}
return buffer;
@ -36,6 +36,33 @@ time_t to_time_t(const FILETIME& ft)
return v.QuadPart / 10000000ULL - 11644473600ULL;
}
bool truncate_file(const std::string& file, uint64_t length)
{
const auto handle = CreateFileW(ConvertUTF8ToWChar(file).get(), GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if (handle == INVALID_HANDLE_VALUE)
{
return false;
}
LARGE_INTEGER distance;
distance.QuadPart = length;
if (!SetFilePointerEx(handle, distance, NULL, FILE_BEGIN))
{
CloseHandle(handle);
return false;
}
if (!SetEndOfFile(handle))
{
CloseHandle(handle);
return false;
}
return CloseHandle(handle);
}
#else
#include <fcntl.h>
#include <unistd.h>
@ -119,10 +146,16 @@ bool rIsDir(const std::string& dir)
bool rMkdir(const std::string& dir)
{
#ifdef _WIN32
return !_mkdir(dir.c_str());
if (!CreateDirectoryW(ConvertUTF8ToWChar(dir).get(), NULL))
#else
return !mkdir(dir.c_str(), 0777);
if (mkdir(dir.c_str(), 0777))
#endif
{
LOG_ERROR(GENERAL, "Error creating directory '%s': 0x%llx", dir, GET_API_ERROR);
return false;
}
return true;
}
bool rMkpath(const std::string& path)
@ -160,7 +193,7 @@ bool rRmdir(const std::string& dir)
if (rmdir(dir.c_str()))
#endif
{
LOG_ERROR(GENERAL, "Error deleting directory %s: 0x%llx", dir.c_str(), GET_API_ERROR);
LOG_ERROR(GENERAL, "Error deleting directory '%s': 0x%llx", dir, GET_API_ERROR);
return false;
}
@ -176,7 +209,7 @@ bool rRename(const std::string& from, const std::string& to)
if (rename(from.c_str(), to.c_str()))
#endif
{
LOG_ERROR(GENERAL, "Error renaming '%s' to '%s': 0x%llx", from.c_str(), to.c_str(), GET_API_ERROR);
LOG_ERROR(GENERAL, "Error renaming '%s' to '%s': 0x%llx", from, to, GET_API_ERROR);
return false;
}
@ -227,7 +260,7 @@ bool rCopy(const std::string& from, const std::string& to, bool overwrite)
if (OSCopyFile(from.c_str(), to.c_str(), overwrite))
#endif
{
LOG_ERROR(GENERAL, "Error copying '%s' to '%s': 0x%llx", from.c_str(), to.c_str(), GET_API_ERROR);
LOG_ERROR(GENERAL, "Error copying '%s' to '%s': 0x%llx", from, to, GET_API_ERROR);
return false;
}
@ -252,9 +285,25 @@ bool rRemoveFile(const std::string& file)
if (unlink(file.c_str()))
#endif
{
LOG_ERROR(GENERAL, "Error deleting file %s: 0x%llx", file.c_str(), GET_API_ERROR);
LOG_ERROR(GENERAL, "Error deleting file '%s': 0x%llx", file, GET_API_ERROR);
return false;
}
return true;
}
bool rTruncate(const std::string& file, uint64_t length)
{
#ifdef _WIN32
if (!truncate_file(file, length))
#else
if (truncate64(file.c_str()), length)
#endif
{
LOG_ERROR(GENERAL, "Error resizing file '%s' to 0x%llx: 0x%llx", file, length, GET_API_ERROR);
return false;
}
return true;
}
@ -350,7 +399,6 @@ rFile::rFile()
rFile::rFile(const std::string& filename, rFile::OpenMode open)
{
handle = reinterpret_cast<void*>(new wxFile(fmt::FromUTF8(filename), convertOpenMode(open)));
}