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added a comment to sdsMakeRoomFor() to make it clear what the function actually does.

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antirez 2011-11-02 16:09:14 +01:00
parent ef23f3ac92
commit 3526724594
1 changed files with 6 additions and 0 deletions
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6
src/sds.c
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@ -101,6 +101,12 @@ void sdsclear(sds s) {
sh->buf[0] = '\0'; sh->buf[0] = '\0';
} }
/* Enlarge the free space at the end of the sds string so that the caller
* is sure that after calling this function can overwrite up to addlen
* bytes after the end of the string, plus one more byte for nul term.
*
* Note: this does not change the *size* of the sds string as returned
* by sdslen(), but only the free buffer space we have. */
static sds sdsMakeRoomFor(sds s, size_t addlen) { static sds sdsMakeRoomFor(sds s, size_t addlen) {
struct sdshdr *sh, *newsh; struct sdshdr *sh, *newsh;
size_t free = sdsavail(s); size_t free = sdsavail(s);