mitsuba/src/libcore/cstream.cpp

89 lines
2.3 KiB
C++

/*
This file is part of Mitsuba, a physically based rendering system.
Copyright (c) 2007-2011 by Wenzel Jakob and others.
Mitsuba is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License Version 3
as published by the Free Software Foundation.
Mitsuba 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <mitsuba/core/cstream.h>
#include <errno.h>
MTS_NAMESPACE_BEGIN
ConsoleStream::ConsoleStream() {
setByteOrder(ENetworkByteOrder);
}
ConsoleStream::~ConsoleStream() {
}
std::string ConsoleStream::toString() const {
return "ConsoleStream[]";
}
void ConsoleStream::setPos(size_t pos) {
Log(EError, "Cannot seek within a console stream!");
}
size_t ConsoleStream::getPos() const {
Log(EError, "Cannot determine the position within a console stream!");
return 0;
}
size_t ConsoleStream::getSize() const {
Log(EError, "Cannot determine the size of a console stream!");
return 0;
}
void ConsoleStream::truncate(size_t) {
Log(EError, "Cannot truncate a console stream!");
}
void ConsoleStream::flush() {
if (fflush(stdout) == EOF)
Log(EError, "Error in fflush(): %s!", strerror(errno));
}
void ConsoleStream::read(void *ptr, size_t size) {
if (fread(ptr, size, 1, stdin) != 1) {
if (feof(stdin))
Log(EError, "Error in fread(): end of file!");
else if (ferror(stdin))
Log(EError, "Error in fread(): stream error!");
/* Otherwise, ignore (strange, but seems to be required) */
}
}
void ConsoleStream::write(const void *ptr, size_t size) {
if (fwrite(ptr, size, 1, stdout) != 1) {
if (feof(stdout))
Log(EError, "Error in fwrite(): end of file!");
else if (ferror(stdout))
Log(EError, "Error in fwrite(): stream error!");
/* Otherwise, ignore (strange, but seems to be required) */
}
}
bool ConsoleStream::canRead() const {
return true;
}
bool ConsoleStream::canWrite() const {
return true;
}
MTS_IMPLEMENT_CLASS(ConsoleStream, false, Stream)
MTS_NAMESPACE_END