extern const char* Ncbi_strerror(int errnum)
{
#if (defined(NCBI_OS_MSWIN) && defined(_UNICODE)) || \
(NCBI_COMPILER_MSVC && (_MSC_VER >= 1400) && __STDC_WANT_SECURE_LIB__)
string tmp;
# if NCBI_COMPILER_MSVC && (_MSC_VER >= 1400) && __STDC_WANT_SECURE_LIB__
TXChar xbuf[256];
NcbiSys_strerror_s(xbuf,sizeof(xbuf)/sizeof(TXChar),errnum);
tmp = _T_STDSTRING(xbuf);
# else
tmp = _T_STDSTRING( NcbiSys_strerror(errnum) );
# endif
char* ptr = new char[ tmp.size() + 1];
strcpy(ptr, tmp.c_str());
s_TlsStrerrorMessage.SetValue(ptr, s_TlsStrerrorMessageCleanup);
return ptr;
#else
return NcbiSys_strerror(errnum);
#endif
}
void CPIDGuard::Release(void)
{
if ( !m_Path.empty() ) {
// MT-Safe protect
CFastMutexGuard LOCK(s_PidGuardMutex);
// Read info
TPid pid = 0;
unsigned int ref = 0;
CNcbiIfstream in(m_Path.c_str());
if ( in.good() ) {
in >> pid >> ref;
in.close();
if ( m_NewPID != pid ) {
// We do not own this file more
return;
}
if ( ref ) {
ref--;
}
// Check reference counter
if ( ref ) {
// Write updated reference counter into the file
CNcbiOfstream out(m_Path.c_str(),
IOS_BASE::out | IOS_BASE::trunc);
if ( out.good() ) {
out << pid << endl << ref << endl;
}
if ( !out.good() ) {
NCBI_THROW(CPIDGuardException, eWrite,
"Unable to write into PID file " + m_Path +": "
+ _T_CSTRING(NcbiSys_strerror(errno)));
}
} else {
// Remove the file
CDirEntry(m_Path).Remove();
}
}
