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VILLASnode/include/villas/nodes/shmem.hpp

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/* Node-type for shared memory communication.
*
* Author: Georg Martin Reinke <georg.reinke@rwth-aachen.de>
* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
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#include <villas/node/config.hpp>
#include <villas/node/memory.hpp>
#include <villas/pool.hpp>
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#include <villas/queue.h>
#include <villas/shmem.hpp>
namespace villas {
namespace node {
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// Forward declarations
class NodeCompat;
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struct shmem {
const char *out_name; // Name of the shm object for the output queue.
const char *in_name; // Name of the shm object for the input queue.
struct ShmemConfig conf; // Interface configuration struct.
char **exec; // External program to execute on start.
struct ShmemInterface intf; // Shmem interface
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};
char *shmem_print(NodeCompat *n);
int shmem_parse(NodeCompat *n, json_t *json);
int shmem_start(NodeCompat *n);
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int shmem_stop(NodeCompat *n);
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int shmem_init(NodeCompat *n);
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int shmem_prepare(NodeCompat *n);
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int shmem_read(NodeCompat *n, struct Sample *const smps[], unsigned cnt);
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int shmem_write(NodeCompat *n, struct Sample *const smps[], unsigned cnt);
} // namespace node
} // namespace villas