| 1 | /* sxiv: util.h |
| 2 | * Copyright (c) 2011 Bert Muennich <muennich at informatik.hu-berlin.de> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License as published by the |
| 6 | * Free Software Foundation; either version 2 of the License, or (at your |
| 7 | * option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, but |
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along |
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifndef UTIL_H |
| 20 | #define UTIL_H |
| 21 | |
| 22 | #include <stdio.h> |
| 23 | #include <stdarg.h> |
| 24 | #include <dirent.h> |
| 25 | #include <sys/time.h> |
| 26 | #include <sys/types.h> |
| 27 | |
| 28 | #include "types.h" |
| 29 | |
| 30 | #ifndef MIN |
| 31 | #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
| 32 | #endif |
| 33 | #ifndef MAX |
| 34 | #define MAX(a,b) ((a) > (b) ? (a) : (b)) |
| 35 | #endif |
| 36 | |
| 37 | #define ARRLEN(a) (sizeof(a) / sizeof((a)[0])) |
| 38 | |
| 39 | typedef struct { |
| 40 | DIR *dir; |
| 41 | char *name; |
| 42 | int d; |
| 43 | |
| 44 | char **stack; |
| 45 | int stcap; |
| 46 | int stlen; |
| 47 | } r_dir_t; |
| 48 | |
| 49 | static inline |
| 50 | bool streq(const char *a, const char *b) { |
| 51 | return strcmp(a, b) == 0; |
| 52 | } |
| 53 | |
| 54 | static inline |
| 55 | long tv_diff(const struct timeval *t1, const struct timeval *t2) { |
| 56 | return (t1->tv_sec - t2->tv_sec) * 1000 + |
| 57 | (t1->tv_usec - t2->tv_usec) / 1000; |
| 58 | } |
| 59 | |
| 60 | static inline |
| 61 | void tv_set_msec(struct timeval *t, int msec) { |
| 62 | t->tv_sec = msec / 1000; |
| 63 | t->tv_usec = msec % 1000 * 1000; |
| 64 | } |
| 65 | |
| 66 | static inline |
| 67 | void tv_add_msec(struct timeval *t, int msec) { |
| 68 | t->tv_sec += msec / 1000; |
| 69 | t->tv_usec += msec % 1000 * 1000; |
| 70 | } |
| 71 | |
| 72 | void* s_malloc(size_t); |
| 73 | void* s_realloc(void*, size_t); |
| 74 | char* s_strdup(char*); |
| 75 | |
| 76 | void warn(const char*, ...); |
| 77 | void die(const char*, ...); |
| 78 | |
| 79 | ssize_t get_line(char**, size_t*, FILE*); |
| 80 | |
| 81 | void size_readable(float*, const char**); |
| 82 | void time_readable(float*, const char**); |
| 83 | |
| 84 | char* absolute_path(const char*); |
| 85 | |
| 86 | int r_opendir(r_dir_t*, const char*); |
| 87 | int r_closedir(r_dir_t*); |
| 88 | char* r_readdir(r_dir_t*); |
| 89 | int r_mkdir(const char *); |
| 90 | |
| 91 | #endif /* UTIL_H */ |