100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
/**
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* @file
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* base header
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*
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* This file is part of Gem-graph.
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*
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* @cond LICENSE
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* Copyright © 2021 Libre en Communs <contact@a-lec.org>
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* Copyright © 2021-2024 Adrien Bourmault <neox@a-lec.org>
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* Copyright © 2021-2024 Jean Sirmai <jean@a-lec.org>
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* @endcond
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*/
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#pragma once
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <math.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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#include <stdbool.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <glib-2.0/glib.h>
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//#define G_APPLICATION_DEFAULT_FLAGS 0
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struct arrow_t { uint load; uint site; uint x; uint y; uint z; };
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static inline char *read_file(char *filename);
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/**
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* I'm standing on Earth (or any spinning spheroid)
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* and looking towards its North pole,
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*
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* then :
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*
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* X - X = EAST - WEST = red - cyan
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* Y - Y = ZENITH - NADIR = green - magenta (fuschia)
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* Z - Z = SOUTH - NORTH = blue - yellow
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*/
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enum axis { X_AXIS, Y_AXIS, Z_AXIS, N_AXIS };
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#define EAST 0 /**< +x red */
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#define WEST 1 /**< -x cyan */
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#define ZENITH 2 /**< +y green */
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#define NADIR 3 /**< -y magenta or fuschia */
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#define SOUTH 4 /**< +z blue */
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#define NORTH 5 /**< -z yellow */
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/**
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* char *read_file(char *filename)
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*
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* reads a file from filename into a provided buffer
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*
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* @param *filename
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*/
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static inline char *read_file(char *filename)
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{
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int fd;
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int filesize;
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char *contents;
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fd = open(filename, O_RDONLY);
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if(fd < 0) {
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printf("Couldn't read file: %s\n",filename);
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return NULL;
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}
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filesize = lseek(fd, 0, SEEK_END) + 1 ;
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contents = g_malloc(filesize * sizeof(char));
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assert (contents);
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lseek(fd, 0, SEEK_SET);
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read(fd,contents,filesize);
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contents[filesize-1] = '\0';
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close(fd);
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return contents;
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}
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