richgel99@gmail.com
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
// File: crn_win32_file_utils.cpp
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// See Copyright Notice and license at the end of inc/crnlib.h
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#include "crn_core.h"
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#include "crn_win32_file_utils.h"
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#include "crn_winhdr.h"
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namespace crnlib
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{
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bool win32_file_utils::does_file_exist(const wchar_t* pFilename)
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{
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const DWORD fullAttributes = GetFileAttributesW(pFilename);
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if (fullAttributes == INVALID_FILE_ATTRIBUTES)
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return false;
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if (fullAttributes & FILE_ATTRIBUTE_DIRECTORY)
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return false;
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return true;
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}
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bool win32_file_utils::does_dir_exist(const wchar_t* pDir)
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{
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//-- Get the file attributes.
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DWORD fullAttributes = GetFileAttributesW(pDir);
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if (fullAttributes == INVALID_FILE_ATTRIBUTES)
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return false;
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if (fullAttributes & FILE_ATTRIBUTE_DIRECTORY)
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return true;
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return false;
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}
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bool win32_file_utils::get_file_size(const wchar_t* pFilename, uint64& file_size)
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{
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file_size = 0;
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WIN32_FILE_ATTRIBUTE_DATA attr;
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if (0 == GetFileAttributesExW(pFilename, GetFileExInfoStandard, &attr))
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return false;
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if (attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
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return false;
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file_size = static_cast<uint64>(attr.nFileSizeLow) | (static_cast<uint64>(attr.nFileSizeHigh) << 32U);
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return true;
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}
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bool win32_file_utils::get_file_size(const wchar_t* pFilename, uint32& file_size)
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{
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uint64 file_size64;
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if (!get_file_size(pFilename, file_size64))
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{
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file_size = 0;
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return false;
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}
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if (file_size64 > UINT32_MAX)
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file_size64 = UINT32_MAX;
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file_size = static_cast<uint32>(file_size64);
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return true;
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}
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} // namespace crnlib
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