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https://git.rwth-aachen.de/acs/public/villas/node/
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58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/** A simple buffer for encoding streamed JSON messages.
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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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* VILLAScommon
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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 <vector>
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#include <cstdlib>
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#include <jansson.h>
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namespace villas {
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class Buffer : public std::vector<char> {
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public:
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void append(const char *data, size_t len)
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{
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insert(end(), data, data + len);
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}
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};
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class JsonBuffer : public Buffer
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{
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protected:
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static int callback(const char *data, size_t len, void *ctx);
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public:
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/** Encode JSON document /p j and append it to the buffer */
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int encode(json_t *j);
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/** Decode JSON document from the beginning of the buffer */
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json_t * decode();
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};
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} /* namespace villas */
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