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authorMitja Felicijan <mitja.felicijan@gmail.com>2026-01-21 22:52:54 +0100
committerMitja Felicijan <mitja.felicijan@gmail.com>2026-01-21 22:52:54 +0100
commitdcacc00e3750300617ba6e16eb346713f91a783a (patch)
tree38e2d4fb5ed9d119711d4295c6eda4b014af73fd /examples/redis-unstable/src/sds.h
parent58dac10aeb8f5a041c46bddbeaf4c7966a99b998 (diff)
downloadcrep-dcacc00e3750300617ba6e16eb346713f91a783a.tar.gz
Remove testing data
Diffstat (limited to 'examples/redis-unstable/src/sds.h')
-rw-r--r--examples/redis-unstable/src/sds.h340
1 files changed, 0 insertions, 340 deletions
diff --git a/examples/redis-unstable/src/sds.h b/examples/redis-unstable/src/sds.h
deleted file mode 100644
index 3c02d7d..0000000
--- a/examples/redis-unstable/src/sds.h
+++ /dev/null
@@ -1,340 +0,0 @@
-/* SDSLib 2.0 -- A C dynamic strings library
- *
- * Copyright (c) 2006-Present, Redis Ltd.
- * All rights reserved.
- *
- * Copyright (c) 2024-present, Valkey contributors.
- * All rights reserved.
- *
- * Licensed under your choice of (a) the Redis Source Available License 2.0
- * (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the
- * GNU Affero General Public License v3 (AGPLv3).
- */
-
-#ifndef __SDS_H
-#define __SDS_H
-
-#define SDS_MAX_PREALLOC (1024*1024)
-extern const char *SDS_NOINIT;
-
-#include <sys/types.h>
-#include <stdarg.h>
-#include <stdint.h>
-
-typedef char *sds;
-
-/* Note: sdshdr5 is never used, we just access the flags byte directly.
- * However is here to document the layout of type 5 SDS strings. */
-struct __attribute__ ((__packed__)) sdshdr5 {
- unsigned char flags; /* 3 lsb of type, and 5 msb of string length */
- char buf[];
-};
-struct __attribute__ ((__packed__)) sdshdr8 {
- uint8_t len; /* used */
- uint8_t alloc; /* excluding the header and null terminator */
- unsigned char flags; /* 3 lsb of type, 5 unused bits */
- char buf[];
-};
-struct __attribute__ ((__packed__)) sdshdr16 {
- uint16_t len; /* used */
- uint16_t alloc; /* excluding the header and null terminator */
- unsigned char flags; /* 3 lsb of type, 5 unused bits */
- char buf[];
-};
-struct __attribute__ ((__packed__)) sdshdr32 {
- uint32_t len; /* used */
- uint32_t alloc; /* excluding the header and null terminator */
- unsigned char flags; /* 3 lsb of type, 5 unused bits */
- char buf[];
-};
-struct __attribute__ ((__packed__)) sdshdr64 {
- uint64_t len; /* used */
- uint64_t alloc; /* excluding the header and null terminator */
- unsigned char flags; /* 3 lsb of type, 5 unused bits */
- char buf[];
-};
-
-#define SDS_TYPE_5 0
-#define SDS_TYPE_8 1
-#define SDS_TYPE_16 2
-#define SDS_TYPE_32 3
-#define SDS_TYPE_64 4
-#define SDS_TYPE_MASK 7
-#define SDS_TYPE_BITS 3
-#define SDS_HDR_VAR(T,s) struct sdshdr##T *sh = (void*)((s)-(sizeof(struct sdshdr##T)));
-#define SDS_HDR(T,s) ((struct sdshdr##T *)((s)-(sizeof(struct sdshdr##T))))
-#define SDS_TYPE_5_LEN(s) (((unsigned char)(s[-1])) >> SDS_TYPE_BITS)
-
-static inline unsigned char sdsType(sds s) {
- unsigned char flags = s[-1];
- return flags & SDS_TYPE_MASK;
-}
-
-/* Returns a user data bit stored in the SDS header by sdsSetAuxBit. The bit
- * index is 0-4. Returns 0 or 1. Always returns 0 for SDS_TYPE_5. */
-static inline int sdsGetAuxBit(sds s, int bit) {
- if (sdsType(s) == SDS_TYPE_5)
- return 0;
-
- unsigned char flags = s[-1];
- return (flags & (1U << (SDS_TYPE_BITS + bit))) != 0U;
-}
-
-/* Stores a bit in an unused area in the SDS header, except for SDS_TYPE_5. The
- * bit index is 0-4. The value is 0 or 1. The aux bits are lost if the SDS is
- * auto-resized. This is only for special uses like immutable SDS embedded in
- * other structures. */
-static inline void sdsSetAuxBit(sds s, int bit, int value) {
- if (sdsType(s) == SDS_TYPE_5) return;
- unsigned char flags = s[-1];
- if (value) {
- flags |= 1U << (SDS_TYPE_BITS + bit);
- } else {
- flags &= ~(1U << (SDS_TYPE_BITS + bit));
- }
- s[-1] = (char)flags;
-}
-
-static inline size_t sdslen(const sds s) {
- switch (sdsType(s)) {
- case SDS_TYPE_5: return SDS_TYPE_5_LEN(s);
- case SDS_TYPE_8:
- return SDS_HDR(8,s)->len;
- case SDS_TYPE_16:
- return SDS_HDR(16,s)->len;
- case SDS_TYPE_32:
- return SDS_HDR(32,s)->len;
- case SDS_TYPE_64:
- return SDS_HDR(64,s)->len;
- }
- return 0;
-}
-
-static inline size_t sdsavail(const sds s) {
- switch(sdsType(s)) {
- case SDS_TYPE_5: {
- return 0;
- }
- case SDS_TYPE_8: {
- SDS_HDR_VAR(8,s);
- return sh->alloc - sh->len;
- }
- case SDS_TYPE_16: {
- SDS_HDR_VAR(16,s);
- return sh->alloc - sh->len;
- }
- case SDS_TYPE_32: {
- SDS_HDR_VAR(32,s);
- return sh->alloc - sh->len;
- }
- case SDS_TYPE_64: {
- SDS_HDR_VAR(64,s);
- return sh->alloc - sh->len;
- }
- }
- return 0;
-}
-
-static inline void sdssetlen(sds s, size_t newlen) {
- switch(sdsType(s)) {
- case SDS_TYPE_5:
- {
- unsigned char *fp = ((unsigned char*)s)-1;
- *fp = SDS_TYPE_5 | (newlen << SDS_TYPE_BITS);
- }
- break;
- case SDS_TYPE_8:
- SDS_HDR(8,s)->len = newlen;
- break;
- case SDS_TYPE_16:
- SDS_HDR(16,s)->len = newlen;
- break;
- case SDS_TYPE_32:
- SDS_HDR(32,s)->len = newlen;
- break;
- case SDS_TYPE_64:
- SDS_HDR(64,s)->len = newlen;
- break;
- }
-}
-
-static inline void sdsinclen(sds s, size_t inc) {
- switch(sdsType(s)) {
- case SDS_TYPE_5:
- {
- unsigned char *fp = ((unsigned char*)s)-1;
- unsigned char newlen = SDS_TYPE_5_LEN(s)+inc;
- *fp = SDS_TYPE_5 | (newlen << SDS_TYPE_BITS);
- }
- break;
- case SDS_TYPE_8:
- SDS_HDR(8,s)->len += inc;
- break;
- case SDS_TYPE_16:
- SDS_HDR(16,s)->len += inc;
- break;
- case SDS_TYPE_32:
- SDS_HDR(32,s)->len += inc;
- break;
- case SDS_TYPE_64:
- SDS_HDR(64,s)->len += inc;
- break;
- }
-}
-
-/* Return the total size of the allocation of the specified sds string,
- * including:
- * 1) The sds header before the pointer.
- * 2) The string.
- * 3) The free buffer at the end if any.
- * 4) The implicit null term.
- */
-static inline size_t sdsAllocSize(sds s) {
- switch(sdsType(s)) {
- case SDS_TYPE_5:
- return sizeof(struct sdshdr5) + SDS_TYPE_5_LEN(s) + 1;
- case SDS_TYPE_8:
- return sizeof(struct sdshdr8) + SDS_HDR(8,s)->alloc + 1;
- case SDS_TYPE_16:
- return sizeof(struct sdshdr16) + SDS_HDR(16,s)->alloc + 1;
- case SDS_TYPE_32:
- return sizeof(struct sdshdr32) + SDS_HDR(32,s)->alloc + 1;
- case SDS_TYPE_64:
- return sizeof(struct sdshdr64) + SDS_HDR(64,s)->alloc + 1;
- }
- return 0;
-}
-
-/* sdsalloc() = sdsavail() + sdslen() */
-static inline size_t sdsalloc(const sds s) {
- switch(sdsType(s)) {
- case SDS_TYPE_5:
- return SDS_TYPE_5_LEN(s);
- case SDS_TYPE_8:
- return SDS_HDR(8,s)->alloc;
- case SDS_TYPE_16:
- return SDS_HDR(16,s)->alloc;
- case SDS_TYPE_32:
- return SDS_HDR(32,s)->alloc;
- case SDS_TYPE_64:
- return SDS_HDR(64,s)->alloc;
- }
- return 0;
-}
-
-static inline void sdssetalloc(sds s, size_t newlen) {
- switch(sdsType(s)) {
- case SDS_TYPE_5:
- /* Nothing to do, this type has no total allocation info. */
- break;
- case SDS_TYPE_8:
- SDS_HDR(8,s)->alloc = newlen;
- break;
- case SDS_TYPE_16:
- SDS_HDR(16,s)->alloc = newlen;
- break;
- case SDS_TYPE_32:
- SDS_HDR(32,s)->alloc = newlen;
- break;
- case SDS_TYPE_64:
- SDS_HDR(64,s)->alloc = newlen;
- break;
- }
-}
-
-static inline int sdsHdrSize(char type) {
- switch(type&SDS_TYPE_MASK) {
- case SDS_TYPE_5:
- return sizeof(struct sdshdr5);
- case SDS_TYPE_8:
- return sizeof(struct sdshdr8);
- case SDS_TYPE_16:
- return sizeof(struct sdshdr16);
- case SDS_TYPE_32:
- return sizeof(struct sdshdr32);
- case SDS_TYPE_64:
- return sizeof(struct sdshdr64);
- }
- return 0;
-}
-
-sds sdsnewlen(const void *init, size_t initlen);
-sds sdstrynewlen(const void *init, size_t initlen);
-sds sdsnew(const char *init);
-sds sdsnewplacement(char *buf, size_t bufsize, char type, const char *init, size_t initlen);
-
-sds sdsempty(void);
-sds sdsdup(const sds s);
-void sdsfree(sds s);
-void sdsfreegeneric(void *s);
-void sdsfreeusable(sds s, size_t *usable);
-sds sdsgrowzero(sds s, size_t len);
-sds sdscatlen(sds s, const void *t, size_t len);
-sds sdscat(sds s, const char *t);
-sds sdscatsds(sds s, const sds t);
-sds sdscpylen(sds s, const char *t, size_t len);
-sds sdscpy(sds s, const char *t);
-
-sds sdscatvprintf(sds s, const char *fmt, va_list ap);
-#ifdef __GNUC__
-sds sdscatprintf(sds s, const char *fmt, ...)
- __attribute__((format(printf, 2, 3)));
-#else
-sds sdscatprintf(sds s, const char *fmt, ...);
-#endif
-
-sds sdscatfmt(sds s, char const *fmt, ...);
-sds sdstrim(sds s, const char *cset);
-void sdssubstr(sds s, size_t start, size_t len);
-void sdsrange(sds s, ssize_t start, ssize_t end);
-void sdsupdatelen(sds s);
-void sdsclear(sds s);
-int sdscmp(const sds s1, const sds s2);
-sds *sdssplitlen(const char *s, ssize_t len, const char *sep, int seplen, int *count);
-void sdsfreesplitres(sds *tokens, int count);
-void sdstolower(sds s);
-void sdstoupper(sds s);
-sds sdsfromlonglong(long long value);
-sds sdscatrepr(sds s, const char *p, size_t len);
-sds *sdssplitargs(const char *line, int *argc);
-sds sdsmapchars(sds s, const char *from, const char *to, size_t setlen);
-sds sdsjoin(char **argv, int argc, char *sep);
-sds sdsjoinsds(sds *argv, int argc, const char *sep, size_t seplen);
-int sdsneedsrepr(const sds s);
-
-/* Callback for sdstemplate. The function gets called by sdstemplate
- * every time a variable needs to be expanded. The variable name is
- * provided as variable, and the callback is expected to return a
- * substitution value. Returning a NULL indicates an error.
- */
-typedef sds (*sdstemplate_callback_t)(const sds variable, void *arg);
-sds sdstemplate(const char *template, sdstemplate_callback_t cb_func, void *cb_arg);
-
-/* Low level functions exposed to the user API */
-char sdsReqType(size_t string_size);
-sds sdsMakeRoomFor(sds s, size_t addlen);
-sds sdsMakeRoomForNonGreedy(sds s, size_t addlen);
-void sdsIncrLen(sds s, ssize_t incr);
-sds sdsRemoveFreeSpace(sds s, int would_regrow);
-sds sdsResize(sds s, size_t size, int would_regrow);
-void *sdsAllocPtr(sds s);
-
-/* Returns the minimum required size to store an sds string of the given length
- * and type. */
-static inline size_t sdsReqSize(size_t len, char type) {
- return len + sdsHdrSize(type) + 1;
-}
-
-/* Export the allocator used by SDS to the program using SDS.
- * Sometimes the program SDS is linked to, may use a different set of
- * allocators, but may want to allocate or free things that SDS will
- * respectively free or allocate. */
-void *sds_malloc(size_t size);
-void *sds_realloc(void *ptr, size_t size);
-void sds_free(void *ptr);
-
-#ifdef REDIS_TEST
-int sdsTest(int argc, char *argv[], int flags);
-#endif
-
-#endif