mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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131 lines
2.6 KiB
C
131 lines
2.6 KiB
C
/** Print hook.
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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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/** @addtogroup hooks Hook functions
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* @{
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*/
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#include "hook.h"
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#include "plugin.h"
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#include "sample.h"
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#include "io.h"
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struct print {
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struct io io;
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struct io_format *format;
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const char *uri;
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};
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static int print_init(struct hook *h)
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{
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struct print *p = h->_vd;
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p->uri = NULL;
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p->format = io_format_lookup("villas");
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return 0;
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}
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static int print_start(struct hook *h)
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{
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struct print *p = h->_vd;
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int ret;
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ret = io_init(&p->io, p->format, IO_FORMAT_ALL);
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if (ret)
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return ret;
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ret = io_open(&p->io, p->uri);
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if (ret)
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return ret;
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return 0;
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}
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static int print_stop(struct hook *h)
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{
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struct print *p = h->_vd;
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int ret;
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ret = io_close(&p->io);
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if (ret)
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return ret;
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ret = io_destroy(&p->io);
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if (ret)
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return ret;
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return 0;
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}
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static int print_parse(struct hook *h, json_t *cfg)
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{
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struct print *p = h->_vd;
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const char *format = NULL;
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int ret;
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json_error_t err;
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ret = json_unpack_ex(cfg, &err, 0, "{ s?: s, s?: s }",
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"output", &p->uri,
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"format", &format
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);
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if (ret)
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jerror(&err, "Failed to parse configuration of hook '%s'", plugin_name(h->_vt));
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if (format) {
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p->format = io_format_lookup(format);
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if (!p->format)
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jerror(&err, "Invalid format '%s'", format);
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}
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return 0;
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}
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static int print_process(struct hook *h, struct sample *smps[], unsigned *cnt)
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{
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struct print *p = h->_vd;
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io_print(&p->io, smps, *cnt);
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return 0;
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}
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static struct plugin p = {
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.name = "print",
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.description = "Print the message to stdout",
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.type = PLUGIN_TYPE_HOOK,
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.hook = {
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.flags = HOOK_NODE | HOOK_PATH,
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.priority = 99,
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.init = print_init,
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.parse = print_parse,
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.start = print_start,
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.stop = print_stop,
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.process= print_process,
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.size = sizeof(struct print)
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}
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};
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REGISTER_PLUGIN(&p)
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/** @} */
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