trixy/example/main/c/main.c

/*
* Copyright (C) 2023 - 2024:
* The Trinitrix Project <soispha@vhack.eu, antifallobst@systemausfall.org>
*
* This file is part of the Trixy crate for Trinitrix.
*
* Trixy is free software: you can redistribute it and/or modify
* it under the terms of the Lesser GNU General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* and the Lesser GNU General Public License along with this program.
* If not, see <https://www.gnu.org/licenses/>.
*/

#include "../dist/interface.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define println(args...)                                                       \
  printf("(plugin): ");                                   \
  printf(args);                                                                \
  printf("\n");                                                            \
  fflush(stdout);
#define eprintln(args...)                                                      \
  printf("(plugin): ");                                   \
  printf(args);                                                                \
  printf("\n");                                                           \
  fflush(stdout);

int p_main() {
  // You can simply call functions ..
  outstanding("James");

  // .. but they check their inputs:
  // This call for example will fail, as a null pointer isn't supported.
  //
  // A error will be signaled by a 0 return code, then the error can be obtained
  // with the `last_error_length` and `last_error_message` functions
  if (!outstanding(0x0)) {
    int error_length = last_error_length();
    char *error = malloc(error_length);
    last_error_message(error, error_length);
    eprintln("Encountered error: %s", error);
    free(error);
  }

  println("Saying hi!");
  string_t hi;
  if (!one.hi(&hi, "Adam")) {
    int error_length = last_error_length();
    char *error = malloc(error_length);
    last_error_message(error, error_length);
    eprintln("Encountered error: %s", error);
    free(error);
  }
  println("Rust returned: %s", hi);
  string_free(hi);

  return 0;
}