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https://git.rwth-aachen.de/acs/public/villas/node/
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92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
/** Hook-releated functions.
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*
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* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2019, 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 <string.h>
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#include <math.h>
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#include <villas/timing.h>
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#include <villas/node/config.h>
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#include <villas/hook.hpp>
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#include <villas/node/exceptions.hpp>
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#include <villas/path.h>
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#include <villas/utils.hpp>
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#include <villas/node.h>
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const char *hook_reasons[] = {
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"ok", "error", "skip-sample", "stop-processing"
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};
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using namespace villas;
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using namespace villas::node;
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Hook::Hook(struct path *p, struct node *n, int fl, int prio, bool en) :
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state(STATE_INITIALIZED),
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flags(fl),
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priority(prio),
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enabled(en),
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path(p),
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node(n)
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{
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int ret;
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logger = logging.get("hook");
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signals.state = STATE_DESTROYED;
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ret = signal_list_init(&signals);
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if (ret)
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throw RuntimeError("Failed to initialize signal list");
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/* We dont need to parse builtin hooks. */
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state = flags & HOOK_BUILTIN ? STATE_CHECKED : STATE_INITIALIZED;
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}
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Hook::~Hook()
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{
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signal_list_destroy(&signals);
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}
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void Hook::prepare()
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{
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assert(state == STATE_CHECKED);
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state = STATE_PREPARED;
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}
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void Hook::parse(json_t *c)
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{
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int ret;
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json_error_t err;
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assert(state != STATE_STARTED);
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ret = json_unpack_ex(c, &err, 0, "{ s?: i, s?: b }",
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"priority", &priority,
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"enabled", &enabled
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);
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if (ret)
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throw ConfigError(c, err, "node-config-hook");
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cfg = c;
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state = STATE_PARSED;
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}
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