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https://git.rwth-aachen.de/acs/public/villas/node/
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55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
/** RAW IO format
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*
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* @file
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2020, 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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#pragma once
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#include <cstdlib>
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/* float128 is currently not yet supported as htole128() functions a missing */
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#if 0 && defined(__GNUC__) && defined(__linux__)
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#define HAS_128BIT
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#endif
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/* Forward declarations */
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struct sample;
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enum raw_flags {
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/** Treat the first three values as: sequenceno, seconds, nanoseconds */
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RAW_FAKE_HEADER = (1 << 16),
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RAW_BIG_ENDIAN = (1 << 17), /**< Encode data in big-endian byte order */
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RAW_BITS_8 = (3 << 24), /**< Pack each value as a byte. */
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RAW_BITS_16 = (4 << 24), /**< Pack each value as a word. */
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RAW_BITS_32 = (5 << 24), /**< Pack each value as a double word. */
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RAW_BITS_64 = (6 << 24), /**< Pack each value as a quad word. */
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#ifdef HAS_128BIT
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RAW_128 = (7 << 24) /**< Pack each value as a double quad word. */
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#endif
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};
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/** Copy / read struct msg's from buffer \p buf to / fram samples \p smps. */
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int raw_sprint(struct io *io, char *buf, size_t len, size_t *wbytes, struct sample *smps[], unsigned cnt);
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/** Read struct sample's from buffer \p buf into samples \p smps. */
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int raw_sscan(struct io *io, const char *buf, size_t len, size_t *rbytes, struct sample *smps[], unsigned cnt);
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