barrier/lib/arch/CMultibyteEmu.cpp

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/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2002 Chris Schoeneman
*
* This package is free software you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "CArch.h"
#include <string.h>
#include <cwchar>
class CArchMBStateImpl {
public:
mbstate_t m_mbstate;
};
//
// use C library non-reentrant multibyte conversion with mutex
//
static CArchMutex s_mutex;
static
void
initMB()
{
s_mutex = ARCH->newMutex();
}
static
void
cleanMB()
{
ARCH->closeMutex(s_mutex);
}
void
ARCH_STRING::initMBState(CArchMBState state)
{
memset(&state->m_mbstate, 0, sizeof(state->m_mbstate));
}
bool
ARCH_STRING::isInitMBState(CArchMBState state)
{
#if !HAVE_MBSINIT
return (mbsinit(&state->m_mbstate) != 0);
#else
return true;
#endif
}
int
ARCH_STRING::convMBToWC(wchar_t* dst, const char* src, int n, CArchMBState)
{
wchar_t dummy;
ARCH->lockMutex(s_mutex);
int result = mbtowc(dst != NULL ? dst : &dummy, src, n);
ARCH->unlockMutex(s_mutex);
if (result < 0)
return -1;
else
return result;
}
int
ARCH_STRING::convWCToMB(char* dst, wchar_t src, CArchMBState)
{
char dummy[MB_LEN_MAX];
ARCH->lockMutex(s_mutex);
int n = wctomb(dst != NULL ? dst : dummy, src);
ARCH->unlockMutex(s_mutex);
return n;
}