108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
/*
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* Copyright (C) 2023 - 2024:
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* The Trinitrix Project <soispha@vhack.eu, antifallobst@systemausfall.org>
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* SPDX-License-Identifier: LGPL-3.0-or-later
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*
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* This file is part of the Trixy crate for Trinitrix.
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*
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* Trixy is free software: you can redistribute it and/or modify
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* it under the terms of the Lesser GNU General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* and the Lesser GNU General Public License along with this program.
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* If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "../dist/interface.h"
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define println(args...) \
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printf ("\33[32;1m(plugin):\33[0m \33[34;1m"); \
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printf (args); \
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printf ("\n\33[0m"); \
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fflush (stdout);
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#define eprintln(args...) \
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printf ("\33[32;1m(plugin):\33[0m\33[31;1m "); \
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printf (args); \
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printf ("\n\33[0m"); \
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fflush (stdout);
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void
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handle_error ()
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{
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int error_length = last_error_length ();
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char *error = malloc (error_length);
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last_error_message (error, error_length);
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eprintln ("Encountered error: %s", error);
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free (error);
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}
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struct Dog
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guess (const char *pers_name, uint32_t age)
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{
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println ("Rust wants to name the dog %s, but that's not good!", pers_name);
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// The callback must free all its owned arguments, as rust just moved these
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// here and is not going to free them.
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string_free (pers_name);
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struct Dog dog = {
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.name = "James",
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};
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return dog;
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}
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int
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plugin_main ()
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{
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// You can simply call functions ..
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outstanding ("James");
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// .. but they check their inputs:
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// This call for example will fail, as a null pointer isn't supported.
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//
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// A error will be signaled by a 0 return code, then the error can be
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// obtained with the `last_error_length` and `last_error_message` functions
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// (which in our case is wrapped by the `handle_error` function)
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if (!outstanding (NULL))
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handle_error ();
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println ("Saying hi!");
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const char *hi;
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if (!dogs.hi (&hi, "Adam"))
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handle_error ();
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println ("Rust returned: %s", hi);
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string_free (hi);
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// The API also has full support for custom types (the `Dog` and `TrainedDog`
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// types are defined in the `api.tri` file)
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struct Dog dog = { .name = "Bruce" };
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struct TrainedDog tDog;
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if (!dogs.train_dog (&tDog, dog))
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handle_error ();
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println ("Dog %s is now trained with specialization %i", tDog.name,
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tDog.training);
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// Beware that you need to free them with the appropriate free functions
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string_free (tDog.name);
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// Trixy also supports functions (i.e. callbacks):
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enum DogType output_dog;
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if (!dogs.guess_my_favourite_dog (&output_dog, guess))
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handle_error ();
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println ("Rust guessed %d", output_dog);
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return 0;
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}
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