barrier/lib/base/XBase.cpp

144 lines
2.3 KiB
C++

/*
* 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 "XBase.h"
#include <cerrno>
#include <cstdarg>
// win32 wants a const char* argument to std::exception c'tor
#if WINDOWS_LIKE
#include <windows.h>
#define STDEXCEPTARG ""
#endif
// default to no argument
#ifndef STDEXCEPTARG
#define STDEXCEPTARG
#endif
//
// XBase
//
XBase::XBase() :
// exception(STDEXCEPTARG),
m_what()
{
// do nothing
}
XBase::XBase(const CString& msg) :
// exception(STDEXCEPTARG),
m_what(msg)
{
// do nothing
}
XBase::~XBase()
{
// do nothing
}
const char*
XBase::what() const
{
if (m_what.empty()) {
m_what = getWhat();
}
return m_what.c_str();
}
CString
XBase::format(const char* /*id*/, const char* fmt, ...) const throw()
{
// FIXME -- lookup message string using id as an index. set
// fmt to that string if it exists.
// format
CString result;
va_list args;
va_start(args, fmt);
try {
result = CStringUtil::vformat(fmt, args);
}
catch (...) {
// ignore
}
va_end(args);
return result;
}
//
// MXErrno
//
MXErrno::MXErrno() :
#if WINDOWS_LIKE
m_errno(GetLastError()),
#else
m_errno(errno),
#endif
m_string(NULL)
{
// do nothing
}
MXErrno::MXErrno(int err) :
m_errno(err),
m_string(NULL)
{
// do nothing
}
MXErrno::~MXErrno()
{
if (m_string != NULL) {
#if WINDOWS_LIKE
LocalFree(m_string);
#endif
}
}
int
MXErrno::getErrno() const
{
return m_errno;
}
const char*
MXErrno::getErrstr() const
{
#if WINDOWS_LIKE
if (m_string != NULL) {
if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_SYSTEM,
0,
error,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPTSTR)&m_string,
0,
NULL) == 0) {
m_string = NULL;
return "unknown error";
}
}
return m_string;
#else
return strerror(m_errno);
#endif
}