1 /* SDSLib, A C dynamic strings library 2 * 3 * Copyright (c) 2006-2010, Salvatore Sanfilippo <antirez at gmail dot com> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * * Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * * Neither the name of Redis nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without 16 * specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef __SDS_H 32 #define __SDS_H 33 34 #include <sys/types.h> 35 #include <stdarg.h> 36 37 typedef char *sds; 38 39 struct sdshdr { 40 int len; 41 int free; 42 char buf[]; 43 }; 44 45 static inline size_t sdslen(const sds s) { 46 struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr))); 47 return sh->len; 48 } 49 50 static inline size_t sdsavail(const sds s) { 51 struct sdshdr *sh = (void*)(s-(sizeof(struct sdshdr))); 52 return sh->free; 53 } 54 55 sds sdsnewlen(const void *init, size_t initlen); 56 sds sdsnew(const char *init); 57 sds sdsempty(); 58 size_t sdslen(const sds s); 59 sds sdsdup(const sds s); 60 void sdsfree(sds s); 61 size_t sdsavail(sds s); 62 sds sdsgrowzero(sds s, size_t len); 63 sds sdscatlen(sds s, void *t, size_t len); 64 sds sdscat(sds s, char *t); 65 sds sdscpylen(sds s, char *t, size_t len); 66 sds sdscpy(sds s, char *t); 67 68 sds sdscatvprintf(sds s, const char *fmt, va_list ap); 69 #ifdef __GNUC__ 70 sds sdscatprintf(sds s, const char *fmt, ...) 71 __attribute__((format(printf, 2, 3))); 72 #else 73 sds sdscatprintf(sds s, const char *fmt, ...); 74 #endif 75 76 sds sdstrim(sds s, const char *cset); 77 sds sdsrange(sds s, int start, int end); 78 void sdsupdatelen(sds s); 79 int sdscmp(sds s1, sds s2); 80 sds *sdssplitlen(char *s, int len, char *sep, int seplen, int *count); 81 void sdsfreesplitres(sds *tokens, int count); 82 void sdstolower(sds s); 83 void sdstoupper(sds s); 84 sds sdsfromlonglong(long long value); 85 sds sdscatrepr(sds s, char *p, size_t len); 86 sds *sdssplitargs(char *line, int *argc); 87 void sdssplitargs_free(sds *argv, int argc); 88 89 #endif 90