Foam::IFstreamAllocator::IFstreamAllocator(const fileName& pathname)
:
ifPtr_(NULL),
compression_(IOstream::UNCOMPRESSED)
{
if (pathname.empty())
{
if (IFstream::debug)
{
Info<< "IFstreamAllocator::IFstreamAllocator(const fileName&) : "
"cannot open null file " << endl;
}
}
ifPtr_ = new ifstream(pathname.c_str());
// If the file is compressed, decompress it before reading.
if (!ifPtr_->good() && isFile(pathname + ".gz", false))
{
if (IFstream::debug)
{
Info<< "IFstreamAllocator::IFstreamAllocator(const fileName&) : "
"decompressing " << pathname + ".gz" << endl;
}
delete ifPtr_;
ifPtr_ = new igzstream((pathname + ".gz").c_str());
if (ifPtr_->good())
{
compression_ = IOstream::COMPRESSED;
}
}
}
void Foam::codedFunctionObject::unloadLibrary
(
const fileName& libPath,
const string& globalFuncName,
const dictionary& contextDict
) const
{
void* lib = 0;
if (libPath.empty())
{
return;
}
dlLibraryTable& libs = const_cast<Time&>(time_).libs();
lib = libs.findLibrary(libPath);
if (!lib)
{
return;
}
// provision for manual execution of code before unloading
if (dlSymFound(lib, globalFuncName))
{
loaderFunctionType function =
reinterpret_cast<loaderFunctionType>
(
dlSym(lib, globalFuncName)
);
if (function)
{
(*function)(false); // force unload
}
else
{
FatalIOErrorIn
(
"codedFunctionObject::unloadLibrary()",
contextDict
) << "Failed looking up symbol " << globalFuncName << nl
<< "from " << libPath << exit(FatalIOError);
}
}
if (!libs.close(libPath, false))
{
FatalIOErrorIn
(
"codedFunctionObject::"
"updateLibrary()",
contextDict
) << "Failed unloading library " << libPath
<< exit(FatalIOError);
}
}
bool mkDir(const fileName& pathName, const mode_t mode)
{
if (pathName.empty())
{
return false;
}
bool success = ::CreateDirectory(pathName.c_str(), NULL);
if (success)
{
chMod(pathName, mode);
}
else
{
const DWORD error = ::GetLastError();
switch (error)
{
case ERROR_ALREADY_EXISTS:
{
success = true;
break;
}
case ERROR_PATH_NOT_FOUND:
{
// Part of the path does not exist so try to create it
const fileName& parentName = pathName.path();
if (parentName.size() && mkDir(parentName, mode))
{
success = mkDir(pathName, mode);
}
break;
}
}
if (!success)
{
FatalErrorIn("mkDir(const fileName&, mode_t)")
<< "Couldn't create directory: " << pathName
<< " " << MSwindows::getLastError()
<< exit(FatalError);
}
}
return success;
}
void getRootCase(fileName& casePath)
{
casePath.clean();
if (casePath.empty() || casePath == ".")
{
// handle degenerate form and '.'
casePath = cwd();
}
else if (casePath[0] != '/' && casePath.name() == "..")
{
// avoid relative cases ending in '..' - makes for very ugly names
casePath = cwd()/casePath;
casePath.clean();
}
}
Foam::OFstreamAllocator::OFstreamAllocator
(
const fileName& pathname,
ios_base::openmode mode,
IOstream::compressionType compression
)
:
ofPtr_(NULL)
{
if (pathname.empty())
{
if (OFstream::debug)
{
Info<< "OFstreamAllocator::OFstreamAllocator(const fileName&) : "
"cannot open null file " << endl;
}
}
if (compression == IOstream::COMPRESSED)
{
// get identically named uncompressed version out of the way
if (isFile(pathname, false))
{
rm(pathname);
}
ofPtr_ = new ogzstream((pathname + ".gz").c_str());
}
else
{
// get identically named compressed version out of the way
if (isFile(pathname + ".gz", false))
{
rm(pathname + ".gz");
}
ofPtr_ = new ofstream(pathname.c_str());
}
}
bool Foam::mkDir(const fileName& pathName, mode_t mode)
{
// empty names are meaningless
if (pathName.empty())
{
return false;
}
// Construct instance path directory if does not exist
if (::mkdir(pathName.c_str(), mode) == 0)
{
// Directory made OK so return true
return true;
}
else
{
switch (errno)
{
case EPERM:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "The filesystem containing " << pathName
<< " does not support the creation of directories."
<< exit(FatalError);
return false;
}
case EEXIST:
{
// Directory already exists so simply return true
return true;
}
case EFAULT:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "" << pathName
<< " points outside your accessible address space."
<< exit(FatalError);
return false;
}
case EACCES:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "The parent directory does not allow write "
"permission to the process,"<< nl
<< "or one of the directories in " << pathName
<< " did not allow search (execute) permission."
<< exit(FatalError);
return false;
}
case ENAMETOOLONG:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "" << pathName << " is too long."
<< exit(FatalError);
return false;
}
case ENOENT:
{
// Part of the path does not exist so try to create it
if (pathName.path().size() && mkDir(pathName.path(), mode))
{
return mkDir(pathName, mode);
}
else
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "Couldn't create directory " << pathName
<< exit(FatalError);
return false;
}
}
case ENOTDIR:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "A component used as a directory in " << pathName
<< " is not, in fact, a directory."
<< exit(FatalError);
return false;
}
case ENOMEM:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "Insufficient kernel memory was available to make "
"directory " << pathName << '.'
<< exit(FatalError);
return false;
}
case EROFS:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "" << pathName
<< " refers to a file on a read-only filesystem."
<< exit(FatalError);
return false;
}
case ELOOP:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "Too many symbolic links were encountered in resolving "
<< pathName << '.'
<< exit(FatalError);
return false;
}
case ENOSPC:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "The device containing " << pathName
<< " has no room for the new directory or "
<< "the user's disk quota is exhausted."
<< exit(FatalError);
return false;
}
default:
{
FatalErrorIn("Foam::mkDir(const fileName&, mode_t)")
<< "Couldn't create directory " << pathName
<< exit(FatalError);
return false;
}
}
}
}
