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Copy pathSystem.cpp
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210 lines (162 loc) · 3.84 KB
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#include "System.h"
#include <array>
#ifdef WIN32
#include <tchar.h>
::TCHAR myWndClassName[] = TEXT("WndClassNameConstant");
#ifdef UNICODE
#include <codecvt>
#endif
#endif
namespace System
{
#ifdef WIN32
struct EnumData
{
native_processid_type process_id;
::HWND hWnd;
};
static ::BOOL WINAPI EnumProc(const ::HWND hWnd, const ::LPARAM lParam)
{
EnumData &ed = *reinterpret_cast<EnumData * const>(lParam);
native_processid_type process_id = 0;
::GetWindowThreadProcessId(hWnd, &process_id);
if (process_id == ed.process_id && ::GetConsoleWindow() != hWnd)
{
std::array<::TCHAR, 257> class_name;
::GetClassName(hWnd, class_name.data(), class_name.size() - 1);
if (0 == ::_tcscmp(class_name.data(), myWndClassName) )
{
ed.hWnd = hWnd;
return false;
}
}
return true;
}
#endif
bool sendSignal(const native_processid_type pid, const int signal)
{
#ifdef WIN32
EnumData ed = {pid, 0};
::EnumWindows(EnumProc, reinterpret_cast<::LPARAM>(&ed) );
if (0 == ed.hWnd)
{
return false;
}
return 0 != ::PostMessage(ed.hWnd, signal, 0, 0);
#elif POSIX
return 0 == ::kill(pid, signal);
#else
#error "Undefine platform"
#endif
}
std::string getTempDir()
{
#ifdef WIN32
std::array<TCHAR, MAX_PATH + 1> buf;
auto const len = ::GetTempPath(buf.size(), buf.data() );
#ifdef UNICODE
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
return converter.to_bytes(buf.data() );
#else
return std::string(buf.cbegin(), buf.cbegin() + len);
#endif
#elif POSIX
const char *buf = ::getenv("TMPDIR");
if (nullptr == buf)
{
return std::string("/tmp/");
}
std::string str(buf);
if ('/' != str.back() )
{
str.push_back('/');
}
return str;
#else
#error "Undefine platform"
#endif
}
bool isFileExists(const std::string &fileName)
{
#ifdef WIN32
#ifdef UNICODE
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
const std::wstring file_name = converter.from_bytes(fileName);
#else
const std::string &file_name = fileName;
#endif
const ::DWORD attrib = ::GetFileAttributes(file_name.c_str() );
if (INVALID_FILE_ATTRIBUTES == attrib)
{
return false;
}
return FILE_ATTRIBUTE_DIRECTORY != (attrib & FILE_ATTRIBUTE_DIRECTORY);
#elif POSIX
struct ::stat attrib;
if (-1 == ::stat(fileName.c_str(), &attrib) )
{
return false;
}
return S_ISREG(attrib.st_mode);
#else
#error "Undefine platform"
#endif
}
bool getFileSizeAndTimeGmt(const std::string &filePath, size_t *fileSize, time_t *fileTime)
{
#ifdef WIN32
#ifdef UNICODE
std::wstring_convert<std::codecvt_utf8_utf16<wchar_t>> converter;
const std::wstring file_path = converter.from_bytes(filePath);
#else
const std::string &file_path = filePath;
#endif
const ::HANDLE hFile = ::CreateFile(file_path.c_str(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, 0, nullptr);
if (INVALID_HANDLE_VALUE == hFile)
{
return false;
}
if (false == ::GetFileSizeEx(hFile, reinterpret_cast<::PLARGE_INTEGER>(fileSize) ) )
{
::CloseHandle(hFile);
return false;
}
::FILETIME ftWrite;
::BOOL result = ::GetFileTime(hFile, nullptr, nullptr, &ftWrite);
::CloseHandle(hFile);
if (false == result)
{
return false;
}
::SYSTEMTIME stUtc;
::FileTimeToSystemTime(&ftWrite, &stUtc);
struct ::tm tm_time {
stUtc.wSecond,
stUtc.wMinute,
stUtc.wHour,
stUtc.wDay,
stUtc.wMonth - 1,
stUtc.wYear - 1900,
0,
0,
-1
};
*fileTime = ::mktime(&tm_time);
return true;
#elif POSIX
struct ::stat attrib;
if (-1 == ::stat(filePath.c_str(), &attrib) )
{
return false;
}
*fileSize = attrib.st_size;
struct ::tm clock = {};
::gmtime_r(&(attrib.st_mtime), &clock);
*fileTime = ::mktime(&clock);
return true;
#else
#error "Undefine platform"
#endif
}
};