diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/sds.c | 19 | ||||
| -rw-r--r-- | src/sds.h | 43 |
2 files changed, 33 insertions, 29 deletions
@@ -49,7 +49,7 @@ * You can print the string with printf() as there is an implicit \0 at the * end of the string. However the string is binary safe and can contain * \0 characters in the middle, as the length is stored in the sds header. */ -sds sdsnewlen(const void *init, size_t initlen) { +sds sdsnew(const void *init, size_t initlen) { struct sdshdr *sh; if (init) { @@ -58,6 +58,7 @@ sds sdsnewlen(const void *init, size_t initlen) { sh = calloc(sizeof(struct sdshdr) + initlen + 1, 1); } if (sh == NULL) { return NULL; } + sh->len = initlen; sh->free = 0; if (initlen && init) { @@ -67,21 +68,15 @@ sds sdsnewlen(const void *init, size_t initlen) { return (char*)sh->buf; } -/* Create a new sds string starting from a null termined C string. */ -sds sdsnew(const char *init) { - size_t initlen = (init == NULL) ? 0 : strlen(init); - return sdsnewlen(init, initlen); -} - /* Duplicate an sds string. */ sds sdsdup(const sds s) { - return sdsnewlen(s, sdslen(s)); + return sdsnew(s, sdslen(s)); } /* Create an empty (zero length) sds string. Even in this case the string * always has an implicit null term. */ sds sdsempty(void) { - return sdsnewlen("", 0); + return sdsnew("", 0); } /* Create an sds string from a long long value. It is much faster than: @@ -100,7 +95,7 @@ sds sdsfromlonglong(long long value) { } while(v); if (value < 0) { *p-- = '-'; } p++; - return sdsnewlen(p, (size_t)(32 - (p - buf))); + return sdsnew(p, (size_t)(32 - (p - buf))); } @@ -516,7 +511,7 @@ sds *sdssplitlen(const char *s, size_t len, const char *sep, size_t seplen, size } /* search the separator */ if ((seplen == 1 && *(s + j) == sep[0]) || (memcmp(s + j, sep, seplen) == 0)) { - tokens[elements] = sdsnewlen(s + start, (size_t)(j - start)); + tokens[elements] = sdsnew(s + start, (size_t)(j - start)); if (tokens[elements] == NULL) { goto cleanup; } elements++; start = j + seplen; @@ -524,7 +519,7 @@ sds *sdssplitlen(const char *s, size_t len, const char *sep, size_t seplen, size } } /* Add the final element. We are sure there is room in the tokens array. */ - tokens[elements] = sdsnewlen(s + start, (size_t)(len - start)); + tokens[elements] = sdsnew(s + start, (size_t)(len - start)); if (tokens[elements] == NULL) { goto cleanup; } elements++; *count = elements; @@ -42,35 +42,19 @@ struct sdshdr { char buf[]; }; -static inline struct sdshdr * sdsheader(const sds s) { - /* The sdshdr pointer has a different alignment than the original char - * pointer, so cast it through a void pointer to silence the warning. */ - return (void *)(s - (sizeof (struct sdshdr))); -} - -static inline size_t sdslen(const sds s) { - return sdsheader(s)->len; -} - -static inline size_t sdsavail(const sds s) { - return sdsheader(s)->free; -} /** * User API function prototypes */ /// Initialization -sds sdsnewlen(const void *init, size_t initlen); -sds sdsnew(const char *init); +sds sdsnew(const void *init, size_t initlen); sds sdsdup(const sds s); sds sdsempty(void); sds sdsfromlonglong(long long value); /// Querying -size_t sdsavail(const sds s); -size_t sdslen(const sds s); int sdscmp(const sds s1, const sds s2); @@ -115,8 +99,33 @@ void sdsIncrLen(sds s, size_t incr); sds sdsMakeRoomFor(sds s, size_t addlen); sds sdsRemoveFreeSpace(sds s); + /// Low-level helper functions int is_hex_digit(char c); int hex_digit_to_int(char c); + +/** + * Inline functions + */ + +static inline struct sdshdr *sdsheader(const sds s) { + /* The sdshdr pointer has a different alignment than the original char + * pointer, so cast it through a void pointer to silence the warning. */ + return (void *)(s - (sizeof (struct sdshdr))); +} + +static inline sds sdsauto(const char *s) { + return sdsnew(s, s ? strlen(s) : 0); +} + +static inline size_t sdsavail(const sds s) { + return sdsheader(s)->free; +} + +static inline size_t sdslen(const sds s) { + return sdsheader(s)->len; +} + + #endif |