334525359a
SDS is now broken out of Redis into its own project, so include
the latest version from the SDS repo.
This is a backport of the Redis commit doing the same to the bundled hiredis:
320fa02b9b
102 lines
3.6 KiB
C
102 lines
3.6 KiB
C
/* SDS (Simple Dynamic Strings), A C dynamic strings library.
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*
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* Copyright (c) 2006-2014, Salvatore Sanfilippo <antirez at gmail dot com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Redis nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __SDS_H
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#define __SDS_H
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#define SDS_MAX_PREALLOC (1024*1024)
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#include <sys/types.h>
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#include <stdarg.h>
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typedef char *sds;
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struct sdshdr {
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int len;
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int free;
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char buf[];
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};
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static inline size_t sdslen(const sds s) {
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struct sdshdr *sh = (void*)(s-sizeof *sh);
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return sh->len;
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}
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static inline size_t sdsavail(const sds s) {
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struct sdshdr *sh = (void*)(s-sizeof *sh);
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return sh->free;
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}
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sds sdsnewlen(const void *init, size_t initlen);
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sds sdsnew(const char *init);
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sds sdsempty(void);
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size_t sdslen(const sds s);
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sds sdsdup(const sds s);
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void sdsfree(sds s);
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size_t sdsavail(const sds s);
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sds sdsgrowzero(sds s, size_t len);
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sds sdscatlen(sds s, const void *t, size_t len);
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sds sdscat(sds s, const char *t);
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sds sdscatsds(sds s, const sds t);
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sds sdscpylen(sds s, const char *t, size_t len);
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sds sdscpy(sds s, const char *t);
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sds sdscatvprintf(sds s, const char *fmt, va_list ap);
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#ifdef __GNUC__
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sds sdscatprintf(sds s, const char *fmt, ...)
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__attribute__((format(printf, 2, 3)));
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#else
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sds sdscatprintf(sds s, const char *fmt, ...);
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#endif
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void sdstrim(sds s, const char *cset);
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void sdsrange(sds s, int start, int end);
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void sdsupdatelen(sds s);
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void sdsclear(sds s);
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int sdscmp(const sds s1, const sds s2);
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sds *sdssplitlen(const char *s, int len, const char *sep, int seplen, int *count);
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void sdsfreesplitres(sds *tokens, int count);
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void sdstolower(sds s);
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void sdstoupper(sds s);
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sds sdsfromlonglong(long long value);
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sds sdscatrepr(sds s, const char *p, size_t len);
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sds *sdssplitargs(const char *line, int *argc);
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sds sdsmapchars(sds s, const char *from, const char *to, size_t setlen);
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sds sdsjoin(char **argv, int argc, char *sep, size_t seplen);
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sds sdsjoinsds(sds *argv, int argc, const char *sep, size_t seplen);
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/* Low level functions exposed to the user API */
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sds sdsMakeRoomFor(sds s, size_t addlen);
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void sdsIncrLen(sds s, int incr);
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sds sdsRemoveFreeSpace(sds s);
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size_t sdsAllocSize(sds s);
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#endif
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