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https://git.rwth-aachen.de/acs/public/villas/node/
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102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
/** Reading and writing simulation samples in various formats.
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2017, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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#include <stdlib.h>
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#include "io.h"
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#include "utils.h"
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int io_init(struct io *io, struct io_format *fmt, int flags)
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{
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io->_vt = fmt;
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io->_vd = alloc(fmt->size);
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io->flags = flags;
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return io->_vt->init ? io->_vt->init(io) : 0;
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}
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int io_destroy(struct io *io)
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{
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int ret;
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ret = io->_vt->destroy ? io->_vt->destroy(io) : 0;
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if (ret)
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return ret;
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free(io->_vd);
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return 0;
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}
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int io_open(struct io *io, const char *uri, const char *mode)
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{
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if (io->_vt->open)
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return io->_vt->open(io, uri, mode);
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else {
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io->file = afopen(uri, mode);
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if (!io->file)
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return -1;
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return 0;
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}
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}
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int io_close(struct io *io)
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{
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return io->_vt->close ? io->_vt->close(io) : afclose(io->file);
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}
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int io_print(struct io *io, struct sample *smps[], size_t cnt)
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{
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assert(io->_vt->print);
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for (int i = 0; i < cnt; i++)
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io->_vt->print(io, smps[i], io->flags);
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return cnt;
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}
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int io_scan(struct io *io, struct sample *smps[], size_t cnt)
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{
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int ret;
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assert(io->_vt->scan);
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for (int i = 0; i < cnt && !io_eof(io); i++) {
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ret = io->_vt->scan(io, smps[i], NULL);
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if (ret < 0)
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return i;
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}
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return cnt;
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}
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int io_eof(struct io *io)
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{
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return io->_vt->eof ? io->_vt->eof(io) : afeof(io->file);
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}
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void io_rewind(struct io *io)
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{
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io->_vt->rewind ? io->_vt->rewind(io) : arewind(io->file);
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}
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