win32.h

本人收集整理的一份c/c++跨平台网络库

#ifndef UTILS_BASE_WIN32_H_
#define UTILS_BASE_WIN32_H_

#include <winsock2.h>
#include <windows.h>
#include <malloc.h>

#include <string>

namespace utils_base {

///////////////////////////////////////////////////////////////////////////////

inline std::wstring ToUtf16(const std::string& str) {
  int len16 = ::MultiByteToWideChar(CP_UTF8, 0, str.data(), (int)str.length(),
                                    NULL, 0);
  wchar_t *ws = static_cast<wchar_t*>(_alloca(len16 * sizeof(wchar_t)));
  ::MultiByteToWideChar(CP_UTF8, 0, str.data(), (int)str.length(), ws, len16);
  std::wstring result(ws, len16);
  return result;
}

inline std::string ToUtf8(const std::wstring& wstr) {
  int len8 = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), (int)wstr.length(),
                                   NULL, 0, NULL, NULL);
  char* ns = static_cast<char*>(_alloca(len8));
  ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), (int)wstr.length(),
                        ns, len8, NULL, NULL);
  std::string result(ns, len8);
  return result;
}

// Convert FILETIME to time_t
inline void FileTimeToUnixTime(const FILETIME& ft, time_t* ut)/// yzxu_alter
{
	SYSTEMTIME systime;
	if (FileTimeToSystemTime(&ft, &systime))
		*ut = (time_t)systime.wMilliseconds;
	else
		*ut = (time_t)0;
}

// Convert time_t to FILETIME
inline void UnixTimeToFileTime(const time_t& ut, FILETIME * ft)/// yzxu_alter
{
	SYSTEMTIME systime;
	systime.wMilliseconds = (WORD)ut;
	SystemTimeToFileTime(&systime, ft);
}

///////////////////////////////////////////////////////////////////////////////

}  // namespace utils_base

#endif  // UTILS_BASE_WIN32_H__