/**
 * Author......: See docs/credits.txt
 * License.....: MIT
 */

#ifndef _SHARED_H
#define _SHARED_H

#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>

bool overflow_check_int64_add (const u64 a, const u64 b);
bool overflow_check_int64_mul (const u64 a, const u64 b);

bool is_power_of_2 (const u32 v);

u32 get_random_num (const u32 min, const u32 max);

u32 mydivc32 (const u32 dividend, const u32 divisor);
u64 mydivc64 (const u64 dividend, const u64 divisor);

char *filename_from_filepath (char *filepath);

void naive_replace (char *s, const char key_char, const char replace_char);
void naive_escape (char *s, size_t s_max, const char key_char, const char escape_char);

void hc_asprintf (char **strp, const char *fmt, ...);

void hc_sleep_msec (const u32 msec);
void hc_sleep      (const u32 sec);

void setup_environment_variables (void);
void setup_umask (void);
void setup_seeding (const bool rp_gen_seed_chgd, const u32 rp_gen_seed);

int hc_stat (const char *pathname, hc_stat_t *buf);
int hc_fstat (int fd, hc_stat_t *buf);

void  hc_qsort_r (void *base, size_t nmemb, size_t size, int (*compar) (const void *, const void *, void *), void *arg);
void *hc_bsearch_r (const void *key, const void *base, size_t nmemb, size_t size, int (*compar) (const void *, const void *, void *), void *arg);

bool hc_path_is_file (const char *path);
bool hc_path_is_directory (const char *path);
bool hc_path_is_empty (const char *path);
bool hc_path_exist (const char *path);
bool hc_path_read (const char *path);
bool hc_path_write (const char *path);
bool hc_path_create (const char *path);

#endif // _SHARED_H