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/* Node C-API.

* Author: Steffen Vogel <post@steffenvogel.de>

* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University

* SPDX-License-Identifier: Apache-2.0

#include <villas/node.hpp>

extern "C" {

#include <villas/node.h>

}

using namespace villas;

using namespace villas::node;

vnode *node_new(const char *id_str, const char *json_str) {

json_error_t err;

uuid_t id;

uuid_parse(id_str, id);

auto *json = json_loads(json_str, 0, &err);

return (vnode *)NodeFactory::make(json, id);

}

int node_prepare(vnode *n) {

auto *nc = (Node *)n;

return nc->prepare();

}

int node_check(vnode *n) {

auto *nc = (Node *)n;

return nc->check();

}

int node_start(vnode *n) {

auto *nc = (Node *)n;

return nc->start();

}

int node_stop(vnode *n) {

auto *nc = (Node *)n;

return nc->stop();

}

int node_pause(vnode *n) {

auto *nc = (Node *)n;

return nc->pause();

}

int node_resume(vnode *n) {

auto *nc = (Node *)n;

return nc->resume();

}

int node_restart(vnode *n) {

auto *nc = (Node *)n;

return nc->restart();

}

int node_destroy(vnode *n) {

auto *nc = (Node *)n;

nc->~Node();

return 0;

}

const char *node_name(vnode *n) {

auto *nc = (Node *)n;

return nc->getName().c_str();

}

const char *node_name_short(vnode *n) {

auto *nc = (Node *)n;

return nc->getNameShort().c_str();

}

const char *node_name_full(vnode *n) {

auto *nc = (Node *)n;

return nc->getNameFull().c_str();

}

const char *node_details(vnode *n) {

auto *nc = (Node *)n;

return nc->getDetails().c_str();

}

unsigned node_input_signals_max_cnt(vnode *n) {

auto *nc = (Node *)n;

return nc->getInputSignalsMaxCount();

}

unsigned node_output_signals_max_cnt(vnode *n) {

auto *nc = (Node *)n;

return nc->getOutputSignalsMaxCount();

}

int node_reverse(vnode *n) {

auto *nc = (Node *)n;

return nc->reverse();

}

int node_read(vnode *n, vsample **smps, unsigned cnt) {

auto *nc = (Node *)n;

return nc->read((villas::node::Sample **)smps, cnt);

}

int node_write(vnode *n, vsample **smps, unsigned cnt) {

auto *nc = (Node *)n;

return nc->write((villas::node::Sample **)smps, cnt);

}

int node_poll_fds(vnode *n, int fds[]) {

auto *nc = (Node *)n;

auto l = nc->getPollFDs();

for (unsigned i = 0; i < l.size() && i < 16; i++)

fds[i] = l[i];

return l.size();

}

int node_netem_fds(vnode *n, int fds[]) {

auto *nc = (Node *)n;

auto l = nc->getNetemFDs();

for (unsigned i = 0; i < l.size() && i < 16; i++)

fds[i] = l[i];

return l.size();

}

bool node_is_valid_name(const char *name) { return Node::isValidName(name); }

bool node_is_enabled(const vnode *n) {

auto *nc = (Node *)n;

return nc->isEnabled();

}

json_t *node_to_json(const vnode *n) {

auto *nc = (Node *)n;

return nc->toJson();

}

const char *node_to_json_str(vnode *n) {

auto json = node_to_json(n);

return json_dumps(json, 0);

}

vsample *sample_alloc(unsigned len) { return (vsample *)sample_alloc_mem(len); }

unsigned sample_length(vsample *s) {

auto *smp = (Sample *)s;

return smp->length;

}

vsample *sample_pack(uint64_t *seq, struct timespec *ts_origin,

struct timespec *ts_received, unsigned len,

double *values) {

auto *smp = sample_alloc_mem(len);

smp->sequence = *seq;

smp->ts.origin = *ts_origin;

smp->ts.received = *ts_received;

smp->length = len;

smp->flags = (int)SampleFlags::HAS_SEQUENCE | (int)SampleFlags::HAS_DATA |

(int)SampleFlags::HAS_TS_ORIGIN;

memcpy(reinterpret_cast<double *>(smp->data), values, sizeof(double) * len);

return (vsample *)smp;

}

void sample_unpack(vsample *s, uint64_t *seq, struct timespec *ts_origin,

struct timespec *ts_received, int *flags, unsigned *len,

double *values) {

auto *smp = (Sample *)s;

*seq = smp->sequence;

*ts_origin = smp->ts.origin;

*ts_received = smp->ts.received;

*flags = smp->flags;

*len = smp->length;

memcpy(values, (double *)smp->data, sizeof(double) * *len);

}

void sample_decref(vsample *smp) { sample_decref((Sample *)smp); }

int memory_init(int hugepages) { return memory::init(hugepages); }

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