2017-04-15 21:22:19 +02:00
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/* Node-type for shared memory communication.
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*
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* Author: Georg Martin Reinke <georg.reinke@rwth-aachen.de>
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2022-03-15 09:28:57 -04:00
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* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
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2022-07-04 18:20:03 +02:00
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* SPDX-License-Identifier: Apache-2.0
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2017-04-15 21:22:19 +02:00
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*/
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2017-04-15 18:02:44 +02:00
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#pragma once
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2017-04-05 12:52:21 +02:00
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2023-09-07 11:46:39 +02:00
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#include <villas/node/config.hpp>
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2021-08-10 10:12:48 -04:00
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#include <villas/node/memory.hpp>
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#include <villas/pool.hpp>
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2017-12-09 02:19:28 +08:00
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#include <villas/queue.h>
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2021-08-10 10:12:48 -04:00
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#include <villas/shmem.hpp>
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namespace villas {
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namespace node {
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2017-04-05 12:52:21 +02:00
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2021-06-21 16:11:42 -04:00
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// Forward declarations
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2021-08-10 10:12:48 -04:00
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class NodeCompat;
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2021-06-21 16:11:42 -04:00
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2017-04-05 12:52:21 +02:00
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struct shmem {
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2023-09-07 11:46:39 +02:00
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const char *out_name; // Name of the shm object for the output queue.
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const char *in_name; // Name of the shm object for the input queue.
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struct ShmemConfig conf; // Interface configuration struct.
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char **exec; // External program to execute on start.
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struct ShmemInterface intf; // Shmem interface
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2017-04-05 12:52:21 +02:00
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};
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2023-09-07 11:46:39 +02:00
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char *shmem_print(NodeCompat *n);
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2021-08-10 10:12:48 -04:00
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int shmem_parse(NodeCompat *n, json_t *json);
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int shmem_start(NodeCompat *n);
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2017-04-05 12:52:21 +02:00
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2021-08-10 10:12:48 -04:00
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int shmem_stop(NodeCompat *n);
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2017-04-05 12:52:21 +02:00
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2021-08-10 10:12:48 -04:00
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int shmem_init(NodeCompat *n);
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2017-04-05 12:52:21 +02:00
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2021-08-10 10:12:48 -04:00
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int shmem_prepare(NodeCompat *n);
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2017-04-05 12:52:21 +02:00
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2023-09-07 11:46:39 +02:00
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int shmem_read(NodeCompat *n, struct Sample *const smps[], unsigned cnt);
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2017-04-05 12:52:21 +02:00
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2023-09-07 11:46:39 +02:00
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int shmem_write(NodeCompat *n, struct Sample *const smps[], unsigned cnt);
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2017-04-15 18:02:44 +02:00
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2023-08-28 09:34:02 +02:00
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} // namespace node
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} // namespace villas
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