1 /* darkstat 3 2 * copyright (c) 2001-2014 Emil Mikulic. 3 * 4 * str.h: string buffer with pool-based reallocation 5 * 6 * Permission to use, copy, modify, and distribute this file for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 #ifndef __DARKSTAT_STR_H 19 #define __DARKSTAT_STR_H 20 21 #include "cdefs.h" 22 23 #include <sys/types.h> 24 #include <stdarg.h> 25 #include <stdint.h> /* for uint64_t */ 26 27 typedef long long signed int qd; /* as in appendf("%qd") */ 28 typedef long long unsigned int qu; /* as in appendf("%qu") */ 29 typedef long long unsigned int lld; /* as in printf("%lld") */ 30 typedef long long unsigned int llu; /* as in printf("%llu") */ 31 32 _Static_assert(sizeof(qd) == sizeof(int64_t), "qd must be int64_t sized"); 33 _Static_assert(sizeof(qu) == sizeof(uint64_t), "qu must be uint64_t sized"); 34 _Static_assert(sizeof(lld) == sizeof(int64_t), "lld must be int64_t sized"); 35 _Static_assert(sizeof(llu) == sizeof(uint64_t), "llu must be uint64_t sized"); 36 37 /* Note: the contents are 8-bit clean and not zero terminated! */ 38 39 struct str; 40 41 struct str *str_make(void); 42 void str_free(struct str *s); 43 void str_extract(struct str *buf, size_t *len, char **str); 44 void str_appendn(struct str *buf, const char *s, const size_t len); 45 void str_appendstr(struct str *buf, const struct str *s); 46 47 #ifdef __GNUC__ 48 /* amusing efficiency hack */ 49 # include <string.h> 50 # define str_append(buf, s) \ 51 str_appendn(buf, s, \ 52 (__builtin_constant_p(s) ? sizeof(s)-1 : strlen(s)) ) 53 #else 54 void str_append(struct str *buf, const char *s); 55 #endif 56 57 size_t xvasprintf(char **result, const char *format, va_list va) 58 _printflike_(2, 0); 59 size_t xasprintf(char **result, const char *format, ...) _printflike_(2, 3); 60 void str_vappendf(struct str *s, const char *format, va_list va) 61 _printflike_(2, 0); 62 void str_appendf(struct str *s, const char *format, ...) _printflike_(2, 3); 63 64 struct str *length_of_time(const time_t t); 65 ssize_t str_write(const struct str * const buf, const int fd); 66 size_t str_len(const struct str * const buf); 67 68 #endif /* __DARKSTAT_STR_H */ 69 /* vim:set ts=3 sw=3 tw=78 expandtab: */ 70