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path: root/utils/sysrepo-plugins/hicn-light/plugin/hicn_light.c
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/*
 * Copyright (c) 2019 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include <inttypes.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include "hicn_light.h"
#include "model/hicn_model.h"



sr_subscription_ctx_t *subscription = NULL;
volatile int exit_application = 0;

int sr_plugin_init_cb(sr_session_ctx_t *session, void **private_ctx) {
  HICN_INVOKE_BEGIN
  sr_subscription_ctx_t *subscription = NULL;
  int rc = SR_ERR_OK;
  rc = hicn_connect_light();
  if (SR_ERR_OK != rc) {
    HICN_LOG_ERR("hicn light connect error , with return %d.", rc);
    return SR_ERR_INTERNAL;
  }

  // HICN subscribe
  hicn_subscribe_events(session, &subscription);


  /* set subscription as our private context */
  *private_ctx = subscription;
  HICN_INVOKE_END;
  return SR_ERR_OK;
}

void sr_plugin_cleanup_cb(sr_session_ctx_t *session, void *private_ctx) {
  HICN_INVOKE_BEGIN;

  /* subscription was set as our private context */
  sr_unsubscribe(session, private_ctx);
  HICN_LOG_DBG_MSG("hicn light unload plugin ok.");
  hicn_disconnect_light();
  HICN_LOG_DBG_MSG("hicn light disconnect ok.");
  HICN_INVOKE_END;
}

static void sigint_handler(int signum) { exit_application = 1; }
int subscribe_all_module_events(sr_session_ctx_t *session) {
  sr_plugin_init_cb(session, (void **)&subscription);
  return 0;
}

int main(int argc, char **argv) {
  sr_conn_ctx_t *connection = NULL;
  sr_session_ctx_t *session = NULL;
  int rc = SR_ERR_OK;

  /* connect to hicn light */
  rc = hicn_connect_light();
  if (-1 == rc) {
    fprintf(stderr, "hicn light connect error");
    return -1;
  }

  /* connect to sysrepo */
  rc = sr_connect("cpe_application", SR_CONN_DEFAULT, &connection);
  if (SR_ERR_OK != rc) {
    fprintf(stderr, "Error by sr_connect: %s\n", sr_strerror(rc));
    goto cleanup;
  }

  /* start session */
  rc = sr_session_start(connection, SR_DS_STARTUP, SR_SESS_DEFAULT, &session);
  if (SR_ERR_OK != rc) {
    fprintf(stderr, "Error by sr_session_start: %s\n", sr_strerror(rc));
    goto cleanup;
  }

  /* subscribe all module events */
  rc = subscribe_all_module_events(session);
  if (SR_ERR_OK != rc) {
    fprintf(stderr, "Error by subscribe module events: %s\n", sr_strerror(rc));
    goto cleanup;
  }

  /* loop until ctrl-c is pressed / SIGINT is received */
  signal(SIGINT, sigint_handler);
  signal(SIGPIPE, SIG_IGN);

  while (!exit_application) {
    sleep(2);
  }

  printf("Application exit requested, exiting.\n");

cleanup:
  if (NULL != subscription) {
    sr_unsubscribe(session, subscription);
  }
  if (NULL != session) {
    sr_session_stop(session);
  }
  if (NULL != connection) {
    sr_disconnect(connection);
  }
  hicn_disconnect_light();
  return rc;
}