Remove testing data

1 files changed, 0 insertions, 1217 deletions

diff --git a/examples/redis-unstable/src/t_string.c b/examples/redis-unstable/src/t_string.c
deleted file mode 100644
index e9f49ea..0000000
--- a/examples/redis-unstable/src/t_string.c
+++ /dev/null
@@ -1,1217 +0,0 @@
-/*
- * Copyright (c) 2009-Present, Redis Ltd.
- * 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).
- */
-
-#include "server.h"
-#include "xxhash.h"
-#include <math.h> /* isnan(), isinf() */
-
-/* XXH3 64-bit hash produces 16 hex characters when formatted */
-#define DIGEST_HEX_LENGTH 16
-
-/* Forward declarations */
-int getGenericCommand(client *c);
-
-/*-----------------------------------------------------------------------------
- * String Commands
- *----------------------------------------------------------------------------*/
-
-static int checkStringLength(client *c, long long size, long long append) {
-    if (mustObeyClient(c))
-        return C_OK;
-    /* 'uint64_t' cast is there just to prevent undefined behavior on overflow */
-    long long total = (uint64_t)size + append;
-    /* Test configured max-bulk-len representing a limit of the biggest string object,
-     * and also test for overflow. */
-    if (total > server.proto_max_bulk_len || total < size || total < append) {
-        addReplyError(c,"string exceeds maximum allowed size (proto-max-bulk-len)");
-        return C_ERR;
-    }
-    return C_OK;
-}
-
-/* The setGenericCommand() function implements the SET operation with different
- * options and variants. This function is called in order to implement the
- * following commands: SET, SETEX, PSETEX, SETNX, GETSET.
- *
- * 'flags' changes the behavior of the command (NX, XX, GET, IFEQ, IFNE, IFDEQ
- * or IFDNE - see below).
- *
- * 'expire' represents an expire to set in form of a Redis object as passed
- * by the user. It is interpreted according to the specified 'unit'.
- *
- * 'match_value' is a value to check against if any of IFEQ/IFNE/IFDEQ/IFDNE is
- * present.
- *
- * 'ok_reply' and 'abort_reply' is what the function will reply to the client
- * if the operation is performed, or when it is not because of NX or
- * XX flags.
- *
- * If ok_reply is NULL "+OK" is used.
- * If abort_reply is NULL, "$-1" is used. */
-
-#define OBJ_NO_FLAGS 0
-#define OBJ_SET_NX (1<<0)          /* Set if key not exists. */
-#define OBJ_SET_XX (1<<1)          /* Set if key exists. */
-#define OBJ_EX (1<<2)              /* Set if time in seconds is given */
-#define OBJ_PX (1<<3)              /* Set if time in ms in given */
-#define OBJ_KEEPTTL (1<<4)         /* Set and keep the ttl */
-#define OBJ_SET_GET (1<<5)         /* Set if want to get key before set */
-#define OBJ_EXAT (1<<6)            /* Set if timestamp in second is given */
-#define OBJ_PXAT (1<<7)            /* Set if timestamp in ms is given */
-#define OBJ_PERSIST (1<<8)         /* Set if we need to remove the ttl */
-#define OBJ_SET_IFEQ (1<<9)        /* Set if value equals match value */
-#define OBJ_SET_IFNE (1<<10)       /* Set if value does not equal match value */
-#define OBJ_SET_IFDEQ (1<<11)      /* Set if current digest equals match digest */
-#define OBJ_SET_IFDNE (1<<12)      /* Set if current digest does not equal match digest */
-
-/* Forward declaration */
-static int getExpireMillisecondsOrReply(client *c, robj *expire, int flags, int unit, long long *milliseconds);
-
-/* Generic SET command family (SET, SETEX, PSETEX, SETNX)
- *
- * Arguments:
- *   valref: A pointer to the robj to be set. This argument may be updated by the function.
- *           The object is expected to have a refcount of 1, allowing its ownership to be
- *           transferred directly to the database to avoid making a copy. If needed, the
- *           function will replace *valref with a new allocation and increment its refcount
- *           so that both the database and the caller maintain valid references.
- */
-void setGenericCommand(client *c, int flags, robj *key, robj **valref, robj *expire,
-                       int unit, robj *match_value, robj *ok_reply, robj *abort_reply)
-{
-    long long milliseconds = 0; /* initialized to avoid any harmless warning */
-    int found = 0;
-    int setkey_flags = 0;
-
-    if (expire && getExpireMillisecondsOrReply(c, expire, flags, unit, &milliseconds) != C_OK) {
-        return;
-    }
-
-    if (flags & OBJ_SET_GET) {
-        if (getGenericCommand(c) == C_ERR) return;
-    }
-
-    dictEntryLink link = NULL;
-    found = (lookupKeyWriteWithLink(c->db,key,&link) != NULL);
-
-    if ((flags & OBJ_SET_NX && found) ||
-        (flags & (OBJ_SET_XX | OBJ_SET_IFEQ | OBJ_SET_IFDEQ) && !found))
-    {
-        if (!(flags & OBJ_SET_GET)) {
-            addReply(c, abort_reply ? abort_reply : shared.null[c->resp]);
-        }
-        return;
-    }
-
-    /* Handle conditional set operations - only set if key is found and condition
-     * is met - otherwise return nil. */
-    if (found && (flags & (OBJ_SET_IFEQ | OBJ_SET_IFNE | OBJ_SET_IFDEQ | OBJ_SET_IFDNE))) {
-        kvobj *current = lookupKeyRead(c->db, key);
-        if (checkType(c, current, OBJ_STRING)) {
-            return;
-        }
-
-        if (flags & OBJ_SET_IFEQ || flags & OBJ_SET_IFNE) {
-            robj *current_decoded = getDecodedObject(current);
-            int condition = (flags & OBJ_SET_IFEQ) ?
-                            sdscmp(current_decoded->ptr, match_value->ptr) == 0 :
-                            sdscmp(current_decoded->ptr, match_value->ptr) != 0;
-            decrRefCount(current_decoded);
-            if (!condition) {
-                if (!(flags & OBJ_SET_GET)) {
-                    addReply(c, abort_reply ? abort_reply : shared.null[c->resp]);
-                }
-                return;
-            }
-        } else if (flags & OBJ_SET_IFDEQ || flags & OBJ_SET_IFDNE) {
-            if (validateHexDigest(c, match_value->ptr) != C_OK)
-                return;
-
-            sds current_digest = stringDigest(current);
-            int condition = flags & OBJ_SET_IFDEQ ?
-                            strcasecmp(current_digest, match_value->ptr) == 0 :
-                            strcasecmp(current_digest, match_value->ptr) != 0;
-            sdsfree(current_digest);
-            if (!condition) {
-                if (!(flags & OBJ_SET_GET)) {
-                    addReply(c, abort_reply ? abort_reply : shared.null[c->resp]);
-                }
-                return;
-            }
-        }
-    }
-
-    /* When expire is not NULL, we avoid deleting the TTL so it can be updated later instead of being deleted and then created again. */
-    setkey_flags |= ((flags & OBJ_KEEPTTL) || expire) ? SETKEY_KEEPTTL : 0;
-    setkey_flags |= found ? SETKEY_ALREADY_EXIST : SETKEY_DOESNT_EXIST;
-
-    setKeyByLink(c, c->db, key, valref, setkey_flags, &link);
-    /* If there's an expiration, setExpireByLink may reallocate the object.
-     * We must update valref to reflect the new object if that happens. */
-    if (expire) *valref = setExpireByLink(c, c->db, key->ptr, milliseconds, link);
-    /* The client still holds a reference to the original object via c->argv[i],
-     * and will call decrRefCount() at the end of call(). We increment the refcount
-     * from 1 to 2 to ensure both DB and client have valid references. */
-    incrRefCount(*valref); /* 1->2 */
-
-    server.dirty++;
-    notifyKeyspaceEvent(NOTIFY_STRING,"set",key,c->db->id);
-
-    if (expire) {
-        /* Propagate as SET Key Value PXAT millisecond-timestamp if there is
-         * EX/PX/EXAT flag. */
-        if (!(flags & OBJ_PXAT)) {
-            robj *milliseconds_obj = createStringObjectFromLongLong(milliseconds);
-            /* If command is exactly "SET key value EX/PX/EXAT ttl", we can just
-             * replace the expire type and value in-place. Otherwise, we need to
-             * rewrite the entire command to strip extra flags (NX, XX, GET, etc). */
-            if ((c->cmd->proc == setCommand) && c->argc == 5) {
-                rewriteClientCommandArgument(c, 3, shared.pxat);
-                rewriteClientCommandArgument(c, 4, milliseconds_obj);
-            } else {
-                rewriteClientCommandVector(c, 5, shared.set, key, *valref, shared.pxat, milliseconds_obj);
-            }
-            decrRefCount(milliseconds_obj);
-        }
-        notifyKeyspaceEvent(NOTIFY_GENERIC,"expire",key,c->db->id);
-    }
-
-    if (!(flags & OBJ_SET_GET)) {
-        addReply(c, ok_reply ? ok_reply : shared.ok);
-    }
-
-    /* Propagate without the GET argument (Isn't needed if we had expire since in that case we completely re-written the command argv) */
-    if ((flags & OBJ_SET_GET) && !expire) {
-        int argc = 0;
-        int j;
-        robj **argv = zmalloc((c->argc-1)*sizeof(robj*));
-        for (j=0; j < c->argc; j++) {
-            char *a = c->argv[j]->ptr;
-            /* Skip GET which may be repeated multiple times. */
-            if (j >= 3 &&
-                (a[0] == 'g' || a[0] == 'G') &&
-                (a[1] == 'e' || a[1] == 'E') &&
-                (a[2] == 't' || a[2] == 'T') && a[3] == '\0')
-                continue;
-            argv[argc++] = c->argv[j];
-            incrRefCount(c->argv[j]);
-        }
-        replaceClientCommandVector(c, argc, argv);
-    }
-}
-
-/*
- * Extract the `expire` argument of a given GET/SET command as an absolute timestamp in milliseconds.
- *
- * "client" is the client that sent the `expire` argument.
- * "expire" is the `expire` argument to be extracted.
- * "flags" represents the behavior of the command (e.g. PX or EX).
- * "unit" is the original unit of the given `expire` argument (e.g. UNIT_SECONDS).
- * "milliseconds" is output argument.
- *
- * If return C_OK, "milliseconds" output argument will be set to the resulting absolute timestamp.
- * If return C_ERR, an error reply has been added to the given client.
- */
-static int getExpireMillisecondsOrReply(client *c, robj *expire, int flags, int unit, long long *milliseconds) {
-    int ret = getLongLongFromObjectOrReply(c, expire, milliseconds, NULL);
-    if (ret != C_OK) {
-        return ret;
-    }
-
-    if (*milliseconds <= 0 || (unit == UNIT_SECONDS && *milliseconds > LLONG_MAX / 1000)) {
-        /* Negative value provided or multiplication is gonna overflow. */
-        addReplyErrorExpireTime(c);
-        return C_ERR;
-    }
-
-    if (unit == UNIT_SECONDS) *milliseconds *= 1000;
-
-    if ((flags & OBJ_PX) || (flags & OBJ_EX)) {
-        *milliseconds += commandTimeSnapshot();
-    }
-
-    if (*milliseconds <= 0) {
-        /* Overflow detected. */
-        addReplyErrorExpireTime(c);
-        return C_ERR;
-    }
-
-    return C_OK;
-}
-
-#define COMMAND_GET 0
-#define COMMAND_SET 1
-#define COMMAND_MSETEX 2
-
-/* Extended string command arguments structure */
-typedef struct {
-    int flags;
-    int unit;
-    int expire_pos;  /* Position of EX/PX flag for replication rewriting */
-    robj *expire;
-    robj *match_value; /* For IFEQ/IFNE/IFDEQ/IFDNE conditions */
-} extendedStringArgs;
-
-/*
- * The parseExtendedStringArgumentsOrReply() function performs the common validation for extended
- * string arguments used in SET, GET and MSETEX commands.
- *
- * Get specific commands - PERSIST/DEL
- * Set specific commands - XX/NX/GET/IFEQ/IFNE/IFDEQ/IFDNE
- * Common commands - EX/EXAT/PX/PXAT/KEEPTTL
- *
- * Function takes pointers to client, start_pos for where to begin parsing, extendedStringArgs
- * structure to populate, and command_type which can be COMMAND_GET, COMMAND_SET, or COMMAND_MSETEX.
- *
- * If there are any syntax violations C_ERR is returned else C_OK is returned.
- *
- * The args structure is updated upon parsing the arguments. Unit and expire are updated if there are any
- * EX/EXAT/PX/PXAT arguments. Unit is updated to millisecond if PX/PXAT is set.
- * match_value is updated if any of IFEQ/IFNE/IFDEQ/IFDNE is set.
- */
-int parseExtendedStringArgumentsOrReply(client *c, int start_pos, extendedStringArgs *args, int command_type) {
-    /* Initialize arguments to defaults */
-    memset(args, 0, sizeof(*args));
-    args->expire_pos = -1;
-    args->unit = UNIT_SECONDS;
-
-    int j = start_pos;
-   /* We can have either none or exactly one of these conditionals as they are
-     * mutually exclusive. We'll make sure to check if none of the other flags
-     * are already set if we are going to set one of them. This is done via the
-     * check:
-     *
-     * if (opt == OBJ_SET_XXX && !(*flags & (cond_mut_excl & ~OBJ_SET_XXX)))
-     *
-     * A bit ugly - but concise.
-     */
-    int cond_mut_excl = OBJ_SET_NX | OBJ_SET_XX | OBJ_SET_IFEQ | OBJ_SET_IFNE |
-                        OBJ_SET_IFDEQ | OBJ_SET_IFDNE;
-    for (; j < c->argc; j++) {
-        char *opt = c->argv[j]->ptr;
-        robj *next = (j == c->argc-1) ? NULL : c->argv[j+1];
-
-        if ((opt[0] == 'n' || opt[0] == 'N') &&
-            (opt[1] == 'x' || opt[1] == 'X') && opt[2] == '\0' &&
-            !(args->flags & OBJ_SET_XX) && (command_type == COMMAND_SET || command_type == COMMAND_MSETEX))
-        {
-            args->flags |= OBJ_SET_NX;
-        } else if ((opt[0] == 'x' || opt[0] == 'X') &&
-                   (opt[1] == 'x' || opt[1] == 'X') && opt[2] == '\0' &&
-                   !(args->flags & OBJ_SET_NX) && (command_type == COMMAND_SET || command_type == COMMAND_MSETEX))
-        {
-            args->flags |= OBJ_SET_XX;
-        } else if ((opt[0] == 'g' || opt[0] == 'G') &&
-                   (opt[1] == 'e' || opt[1] == 'E') &&
-                   (opt[2] == 't' || opt[2] == 'T') && opt[3] == '\0' &&
-                   (command_type == COMMAND_SET))
-        {
-            args->flags |= OBJ_SET_GET;
-        } else if (!strcasecmp(opt, "KEEPTTL") && !(args->flags & OBJ_PERSIST) &&
-            !(args->flags & OBJ_EX) && !(args->flags & OBJ_EXAT) &&
-            !(args->flags & OBJ_PX) && !(args->flags & OBJ_PXAT) &&
-            (command_type == COMMAND_SET || command_type == COMMAND_MSETEX))
-        {
-            args->flags |= OBJ_KEEPTTL;
-        } else if (!strcasecmp(opt,"PERSIST") && (command_type == COMMAND_GET) &&
-               !(args->flags & OBJ_EX) && !(args->flags & OBJ_EXAT) &&
-               !(args->flags & OBJ_PX) && !(args->flags & OBJ_PXAT) &&
-               !(args->flags & OBJ_KEEPTTL))
-        {
-            args->flags |= OBJ_PERSIST;
-        } else if ((opt[0] == 'e' || opt[0] == 'E') &&
-                   (opt[1] == 'x' || opt[1] == 'X') && opt[2] == '\0' &&
-                   !(args->flags & OBJ_KEEPTTL) && !(args->flags & OBJ_PERSIST) &&
-                   !(args->flags & OBJ_EXAT) && !(args->flags & OBJ_PX) &&
-                   !(args->flags & OBJ_PXAT) && next)
-        {
-            args->flags |= OBJ_EX;
-            args->expire = next;
-            args->expire_pos = j;
-            j++;
-        } else if ((opt[0] == 'p' || opt[0] == 'P') &&
-                   (opt[1] == 'x' || opt[1] == 'X') && opt[2] == '\0' &&
-                   !(args->flags & OBJ_KEEPTTL) && !(args->flags & OBJ_PERSIST) &&
-                   !(args->flags & OBJ_EX) && !(args->flags & OBJ_EXAT) &&
-                   !(args->flags & OBJ_PXAT) && next)
-        {
-            args->flags |= OBJ_PX;
-            args->unit = UNIT_MILLISECONDS;
-            args->expire = next;
-            args->expire_pos = j;
-            j++;
-        } else if ((opt[0] == 'e' || opt[0] == 'E') &&
-                   (opt[1] == 'x' || opt[1] == 'X') &&
-                   (opt[2] == 'a' || opt[2] == 'A') &&
-                   (opt[3] == 't' || opt[3] == 'T') && opt[4] == '\0' &&
-                   !(args->flags & OBJ_KEEPTTL) && !(args->flags & OBJ_PERSIST) &&
-                   !(args->flags & OBJ_EX) && !(args->flags & OBJ_PX) &&
-                   !(args->flags & OBJ_PXAT) && next)
-        {
-            args->flags |= OBJ_EXAT;
-            args->expire = next;
-            j++;
-        } else if ((opt[0] == 'p' || opt[0] == 'P') &&
-                   (opt[1] == 'x' || opt[1] == 'X') &&
-                   (opt[2] == 'a' || opt[2] == 'A') &&
-                   (opt[3] == 't' || opt[3] == 'T') && opt[4] == '\0' &&
-                   !(args->flags & OBJ_KEEPTTL) && !(args->flags & OBJ_PERSIST) &&
-                   !(args->flags & OBJ_EX) && !(args->flags & OBJ_EXAT) &&
-                   !(args->flags & OBJ_PX) && next)
-        {
-            args->flags |= OBJ_PXAT;
-            args->unit = UNIT_MILLISECONDS;
-            args->expire = next;
-            j++;
-        } else if (!strcasecmp(opt, "ifeq") && next &&
-                   !(args->flags & (cond_mut_excl & ~OBJ_SET_IFEQ)) &&
-                   (command_type == COMMAND_SET))
-        {
-            args->flags |= OBJ_SET_IFEQ;
-            args->match_value = next;
-            j++;
-        } else if (!strcasecmp(opt, "ifne") && next &&
-                   !(args->flags & (cond_mut_excl & ~OBJ_SET_IFNE)) &&
-                   (command_type == COMMAND_SET))
-        {
-            args->flags |= OBJ_SET_IFNE;
-            args->match_value = next;
-            j++;
-        } else if (!strcasecmp(opt, "ifdeq") && next &&
-                   !(args->flags & (cond_mut_excl & ~OBJ_SET_IFDEQ)) &&
-                   (command_type == COMMAND_SET))
-        {
-            args->flags |= OBJ_SET_IFDEQ;
-            args->match_value = next;
-            j++;
-        } else if (!strcasecmp(opt, "ifdne") && next &&
-                   !(args->flags & (cond_mut_excl & ~OBJ_SET_IFDNE)) &&
-                   (command_type == COMMAND_SET))
-        {
-            args->flags |= OBJ_SET_IFDNE;
-            args->match_value = next;
-            j++;
-        } else {
-            addReplyErrorObject(c,shared.syntaxerr);
-            return C_ERR;
-        }
-    }
-    return C_OK;
-}
-
-/* SET key value [NX] [XX] [KEEPTTL] [GET] [EX <seconds>] [PX <milliseconds>]
- *     [EXAT <seconds-timestamp>][PXAT <milliseconds-timestamp>]
- *     [IFEQ <match-value>|IFNE <match-value>|IFDEQ <match-digest>|
- *      IFDNE <match-digest>]*/
-void setCommand(client *c) {
-    extendedStringArgs args;
-
-    if (parseExtendedStringArgumentsOrReply(c, 3, &args, COMMAND_SET) != C_OK) {
-        return;
-    }
-
-    c->argv[2] = tryObjectEncoding(c->argv[2]);
-    setGenericCommand(c, args.flags, c->argv[1], &(c->argv[2]), args.expire, args.unit, args.match_value, NULL, NULL);
-}
-
-void setnxCommand(client *c) {
-    c->argv[2] = tryObjectEncoding(c->argv[2]);
-    setGenericCommand(c, OBJ_SET_NX, c->argv[1], &(c->argv[2]), NULL, 0, NULL, shared.cone, shared.czero);
-}
-
-void setexCommand(client *c) {
-    c->argv[3] = tryObjectEncoding(c->argv[3]);
-    setGenericCommand(c, OBJ_EX, c->argv[1], &(c->argv[3]), c->argv[2], UNIT_SECONDS, NULL, NULL, NULL);
-}
-
-void psetexCommand(client *c) {
-    c->argv[3] = tryObjectEncoding(c->argv[3]);
-    setGenericCommand(c, OBJ_PX, c->argv[1], &(c->argv[3]), c->argv[2], UNIT_MILLISECONDS, NULL, NULL, NULL);
-}
-
-int getGenericCommand(client *c) {
-    kvobj *o;
-
-    if ((o = lookupKeyReadOrReply(c, c->argv[1], shared.null[c->resp])) == NULL)
-        return C_OK;
-
-    if (checkType(c,o,OBJ_STRING)) {
-        return C_ERR;
-    }
-
-    addReplyBulk(c,o);
-    return C_OK;
-}
-
-void getCommand(client *c) {
-    getGenericCommand(c);
-}
-
-/*
- * GETEX <key> [PERSIST][EX seconds][PX milliseconds][EXAT seconds-timestamp][PXAT milliseconds-timestamp]
- *
- * The getexCommand() function implements extended options and variants of the GET command. Unlike GET
- * command this command is not read-only.
- *
- * The default behavior when no options are specified is same as GET and does not alter any TTL.
- *
- * Only one of the below options can be used at a given time.
- *
- * 1. PERSIST removes any TTL associated with the key.
- * 2. EX Set expiry TTL in seconds.
- * 3. PX Set expiry TTL in milliseconds.
- * 4. EXAT Same like EX instead of specifying the number of seconds representing the TTL
- *      (time to live), it takes an absolute Unix timestamp
- * 5. PXAT Same like PX instead of specifying the number of milliseconds representing the TTL
- *      (time to live), it takes an absolute Unix timestamp
- *
- * Command would either return the bulk string, error or nil.
- */
-void getexCommand(client *c) {
-    extendedStringArgs args;
-
-    if (parseExtendedStringArgumentsOrReply(c, 2, &args, COMMAND_GET) != C_OK) {
-        return;
-    }
-
-    kvobj *o;
-
-    if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.null[c->resp])) == NULL)
-        return;
-
-    if (checkType(c,o,OBJ_STRING)) {
-        return;
-    }
-
-    /* Validate the expiration time value first */
-    long long milliseconds = 0;
-    if (args.expire && getExpireMillisecondsOrReply(c, args.expire, args.flags, args.unit, &milliseconds) != C_OK) {
-        return;
-    }
-
-    /* We need to do this before we expire the key or delete it */
-    addReplyBulk(c,o);
-
-    /* This command is never propagated as is. It is either propagated as PEXPIRE[AT],DEL,UNLINK or PERSIST.
-     * This why it doesn't need special handling in feedAppendOnlyFile to convert relative expire time to absolute one. */
-    if (((args.flags & OBJ_PXAT) || (args.flags & OBJ_EXAT)) && checkAlreadyExpired(milliseconds)) {
-        /* When PXAT/EXAT absolute timestamp is specified, there can be a chance that timestamp
-         * has already elapsed so delete the key in that case. */
-        int deleted = dbGenericDelete(c->db, c->argv[1], server.lazyfree_lazy_expire, DB_FLAG_KEY_EXPIRED);
-        serverAssert(deleted);
-        robj *aux = server.lazyfree_lazy_expire ? shared.unlink : shared.del;
-        rewriteClientCommandVector(c,2,aux,c->argv[1]);
-        keyModified(c, c->db, c->argv[1], NULL, 1);
-        notifyKeyspaceEvent(NOTIFY_GENERIC, "del", c->argv[1], c->db->id);
-        server.dirty++;
-    } else if (args.expire) {
-        o = setExpire(c,c->db,c->argv[1],milliseconds);
-        /* Propagate as PXEXPIREAT millisecond-timestamp if there is
-         * EX/PX/EXAT/PXAT flag and the key has not expired. */
-        robj *milliseconds_obj = createStringObjectFromLongLong(milliseconds);
-        rewriteClientCommandVector(c,3,shared.pexpireat,c->argv[1],milliseconds_obj);
-        decrRefCount(milliseconds_obj);
-        keyModified(c, c->db, c->argv[1], o, 1);
-        notifyKeyspaceEvent(NOTIFY_GENERIC,"expire",c->argv[1],c->db->id);
-        server.dirty++;
-    } else if (args.flags & OBJ_PERSIST) {
-        if (removeExpire(c->db, c->argv[1])) {
-            keyModified(c, c->db, c->argv[1], o, 1);
-            rewriteClientCommandVector(c, 2, shared.persist, c->argv[1]);
-            notifyKeyspaceEvent(NOTIFY_GENERIC,"persist",c->argv[1],c->db->id);
-            server.dirty++;
-        }
-    }
-}
-
-void getdelCommand(client *c) {
-    if (getGenericCommand(c) == C_ERR) return;
-    if (dbSyncDelete(c->db, c->argv[1])) {
-        /* Propagate as DEL command */
-        rewriteClientCommandVector(c,2,shared.del,c->argv[1]);
-        keyModified(c, c->db, c->argv[1], NULL, 1);
-        notifyKeyspaceEvent(NOTIFY_GENERIC, "del", c->argv[1], c->db->id);
-        server.dirty++;
-    }
-}
-
-void getsetCommand(client *c) {
-    if (getGenericCommand(c) == C_ERR) return;
-    c->argv[2] = tryObjectEncoding(c->argv[2]);
-    setKey(c, c->db, c->argv[1], &c->argv[2], 0);
-    incrRefCount(c->argv[2]);
-    notifyKeyspaceEvent(NOTIFY_STRING,"set",c->argv[1],c->db->id);
-    server.dirty++;
-
-    /* Propagate as SET command */
-    rewriteClientCommandArgument(c,0,shared.set);
-}
-
-void setrangeCommand(client *c) {
-    int64_t oldLen = -1, newLen;
-    long offset;
-    sds value = c->argv[3]->ptr;
-    const size_t value_len = sdslen(value);
-
-    if (getLongFromObjectOrReply(c,c->argv[2],&offset,NULL) != C_OK)
-        return;
-
-    if (offset < 0) {
-        addReplyError(c,"offset is out of range");
-        return;
-    }
-
-    dictEntryLink link;
-    kvobj *kv = lookupKeyWriteWithLink(c->db, c->argv[1], &link);
-    if (kv == NULL) {
-        /* Return 0 when setting nothing on a non-existing string */
-        if (value_len == 0) {
-            addReply(c,shared.czero);
-            return;
-        }
-
-        /* Return when the resulting string exceeds allowed size */
-        if (checkStringLength(c,offset,value_len) != C_OK)
-            return;
-
-        newLen = offset+value_len;
-        robj *o = createObject(OBJ_STRING,sdsnewlen(NULL, newLen));
-        kv = dbAddByLink(c->db, c->argv[1], &o, &link);
-    } else {
-        /* Key exists, check type */
-        if (checkType(c,kv,OBJ_STRING))
-            return;
-
-        /* Return existing string length when setting nothing */
-        oldLen = stringObjectLen(kv);
-        if (value_len == 0) {
-            addReplyLongLong(c, oldLen);
-            return;
-        }
-
-        /* Return when the resulting string exceeds allowed size */
-        if (checkStringLength(c,offset,value_len) != C_OK)
-            return;
-
-        /* Create a copy when the object is shared or encoded. */
-        kv = dbUnshareStringValueByLink(c->db, c->argv[1], kv, link);
-
-        newLen = max(oldLen, (int64_t) (offset + value_len));
-        updateKeysizesHist(c->db, getKeySlot(c->argv[1]->ptr), OBJ_STRING, oldLen, newLen);            
-    }
-
-    if (value_len > 0) {
-        size_t oldsize = 0;
-        if (server.memory_tracking_per_slot)
-            oldsize = stringObjectAllocSize(kv);
-        kv->ptr = sdsgrowzero(kv->ptr,offset+value_len);
-        if (server.memory_tracking_per_slot)
-            updateSlotAllocSize(c->db, getKeySlot(c->argv[1]->ptr), oldsize, stringObjectAllocSize(kv));
-        memcpy((char*)kv->ptr+offset,value,value_len);
-        keyModified(c,c->db,c->argv[1],kv,1);
-        notifyKeyspaceEvent(NOTIFY_STRING,
-            "setrange",c->argv[1],c->db->id);
-        server.dirty++;
-    }
-
-    addReplyLongLong(c,newLen);
-}
-
-void getrangeCommand(client *c) {
-    kvobj *o;
-    long long start, end;
-    char *str, llbuf[32];
-    size_t strlen;
-
-    if (getLongLongFromObjectOrReply(c,c->argv[2],&start,NULL) != C_OK)
-        return;
-    if (getLongLongFromObjectOrReply(c,c->argv[3],&end,NULL) != C_OK)
-        return;
-    if ((o = lookupKeyReadOrReply(c,c->argv[1],shared.emptybulk)) == NULL ||
-        checkType(c,o,OBJ_STRING)) return;
-
-    if (o->encoding == OBJ_ENCODING_INT) {
-        str = llbuf;
-        strlen = ll2string(llbuf,sizeof(llbuf),(long)o->ptr);
-    } else {
-        str = o->ptr;
-        strlen = sdslen(str);
-    }
-
-    /* Convert negative indexes */
-    if (start < 0 && end < 0 && start > end) {
-        addReply(c,shared.emptybulk);
-        return;
-    }
-    if (start < 0) start = strlen+start;
-    if (end < 0) end = strlen+end;
-    if (start < 0) start = 0;
-    if (end < 0) end = 0;
-    if ((unsigned long long)end >= strlen) end = strlen-1;
-
-    /* Precondition: end >= 0 && end < strlen, so the only condition where
-     * nothing can be returned is: start > end. */
-    if (start > end || strlen == 0) {
-        addReply(c,shared.emptybulk);
-    } else {
-        addReplyBulkCBuffer(c,(char*)str+start,end-start+1);
-    }
-}
-
-void mgetCommand(client *c) {
-    int j;
-
-    addReplyArrayLen(c,c->argc-1);
-    for (j = 1; j < c->argc; j++) {
-        kvobj *o = lookupKeyRead(c->db, c->argv[j]);
-        if (o == NULL) {
-            addReplyNull(c);
-        } else {
-            if (o->type != OBJ_STRING) {
-                addReplyNull(c);
-            } else {
-                addReplyBulk(c,o);
-            }
-        }
-    }
-}
-
-void msetGenericCommand(client *c, int nx) {
-    int j;
-
-    if ((c->argc % 2) == 0) {
-        addReplyErrorArity(c);
-        return;
-    }
-
-    /* Handle the NX flag. The MSETNX semantic is to return zero and don't
-     * set anything if at least one key already exists. */
-    if (nx) {
-        for (j = 1; j < c->argc; j += 2) {
-            if (lookupKeyWrite(c->db,c->argv[j]) != NULL) {
-                addReply(c, shared.czero);
-                return;
-            }
-        }
-    }
-
-    for (j = 1; j < c->argc; j += 2) {
-        c->argv[j+1] = tryObjectEncoding(c->argv[j+1]);
-        /* if 'NX', no need set flags SETKEY_DOESNT_EXIST. Already verified earlier! */
-        setKey(c, c->db, c->argv[j], &(c->argv[j+1]) , 0 /*flags*/);
-        incrRefCount(c->argv[j+1]);  /* refcnt not incr by setKey() */
-        notifyKeyspaceEvent(NOTIFY_STRING,"set",c->argv[j],c->db->id);
-    }
-    server.dirty += (c->argc-1)/2;
-    addReply(c, nx ? shared.cone : shared.ok);
-}
-
-void msetCommand(client *c) {
-    msetGenericCommand(c,0);
-}
-
-void msetnxCommand(client *c) {
-    msetGenericCommand(c,1);
-}
-
-void msetexCommand(client *c) {
-    /* Parse numkeys parameter */
-    long kv_count;
-    if (getRangeLongFromObjectOrReply(c, c->argv[1], 1, INT_MAX,
-        &kv_count, "invalid numkeys value") != C_OK)
-    {
-        return;
-    }
-
-    /* Validate we have enough arguments: command + numkeys + (key-value pairs) * 2
-     * Be careful to avoid overflow when calculating kv_count * 2 */
-    if ((long long)kv_count * 2 + 2 > c->argc) {
-        addReplyError(c, "wrong number of key-value pairs");
-        return;
-    }
-
-    extendedStringArgs args;
-    if (parseExtendedStringArgumentsOrReply(c, kv_count * 2 + 2, &args, COMMAND_MSETEX) != C_OK) {
-        return;
-    }
-
-    /* Validate the expiration time value first */
-    long long milliseconds = 0;
-    if (args.expire && getExpireMillisecondsOrReply(c, args.expire, args.flags, args.unit, &milliseconds) != C_OK) {
-        return;
-    }
-
-    if (args.flags & (OBJ_SET_NX | OBJ_SET_XX)) {
-        /* Check NX/XX conditions for each key - pattern from setGenericCommand */
-        for (int j = 0; j < kv_count; j++) {
-            int key_idx = (j * 2) + 2;
-            robj *found = lookupKeyWrite(c->db, c->argv[key_idx]);
-
-            if ((args.flags & OBJ_SET_NX && found) ||
-                (args.flags & OBJ_SET_XX && !found))
-            {
-                addReply(c, shared.czero);
-                return;
-            }
-        }
-    }
-
-    /* Set all key-value pairs */
-    for (int j = 0; j < kv_count; j++) {
-        int key_idx = (j * 2) + 2;
-        int val_idx = key_idx + 1;
-
-        c->argv[val_idx] = tryObjectEncoding(c->argv[val_idx]);
-
-        /* Handle KEEPTTL - preserve existing TTL */
-        int setkey_flags = 0;
-        if (args.flags & OBJ_KEEPTTL) {
-            setkey_flags |= SETKEY_KEEPTTL;
-        }
-
-        setKey(c, c->db, c->argv[key_idx], &(c->argv[val_idx]), setkey_flags);
-        incrRefCount(c->argv[val_idx]);
-
-        /* Set expiration for each key (but not for KEEPTTL) */
-        if (args.expire && !(args.flags & OBJ_KEEPTTL)) {
-            setExpire(c, c->db, c->argv[key_idx], milliseconds);
-            notifyKeyspaceEvent(NOTIFY_GENERIC,"expire",c->argv[key_idx],c->db->id);
-        }
-        notifyKeyspaceEvent(NOTIFY_STRING,"set",c->argv[key_idx],c->db->id);
-    }
-
-    /* Handle replication rewriting for relative expiration times */
-    if (args.expire && !(args.flags & OBJ_PXAT) && !(args.flags & OBJ_EXAT) && args.expire_pos != -1) {
-        /* Convert EX/PX (relative) to PXAT (absolute) for consistent replication */
-        robj *milliseconds_obj = createStringObjectFromLongLong(milliseconds);
-        rewriteClientCommandArgument(c, args.expire_pos, shared.pxat);
-        rewriteClientCommandArgument(c, args.expire_pos + 1, milliseconds_obj);
-        decrRefCount(milliseconds_obj);
-    }
-
-    server.dirty += kv_count;
-    addReply(c, shared.cone);
-}
-
-void incrDecrCommand(client *c, long long incr) {
-    long long value, oldvalue;
-    robj *new;
-    dictEntryLink link;
-    kvobj *o = lookupKeyWriteWithLink(c->db, c->argv[1], &link);
-    if (checkType(c,o,OBJ_STRING)) return;
-    if (getLongLongFromObjectOrReply(c,o,&value,NULL) != C_OK) return;
-
-    oldvalue = value;
-    if ((incr < 0 && oldvalue < 0 && incr < (LLONG_MIN-oldvalue)) ||
-        (incr > 0 && oldvalue > 0 && incr > (LLONG_MAX-oldvalue))) {
-        addReplyError(c,"increment or decrement would overflow");
-        return;
-    }
-    value += incr;
-
-    if (o && o->refcount == 1 && o->encoding == OBJ_ENCODING_INT &&
-        value >= LONG_MIN && value <= LONG_MAX)
-    {
-        new = o;
-        o->ptr = (void*)((long)value);
-        updateKeysizesHist(c->db, getKeySlot(c->argv[1]->ptr),
-                           OBJ_STRING,
-                           (int64_t) sdigits10(oldvalue),
-                           (int64_t) sdigits10(value));
-    } else {
-        new = createStringObjectFromLongLongForValue(value);
-        if (o) {
-            /* replace value in db and also update keysizes hist */
-            dbReplaceValueWithLink(c->db, c->argv[1], &new, link);
-        } else {
-            /* Add new key to db and also update keysizes hist */
-            dbAddByLink(c->db, c->argv[1], &new, &link);
-        }
-    }
-    addReplyLongLongFromStr(c,new);
-    keyModified(c,c->db,c->argv[1],new,1);
-    notifyKeyspaceEvent(NOTIFY_STRING,"incrby",c->argv[1],c->db->id);
-    server.dirty++;
-}
-
-void incrCommand(client *c) {
-    incrDecrCommand(c,1);
-}
-
-void decrCommand(client *c) {
-    incrDecrCommand(c,-1);
-}
-
-void incrbyCommand(client *c) {
-    long long incr;
-
-    if (getLongLongFromObjectOrReply(c, c->argv[2], &incr, NULL) != C_OK) return;
-    incrDecrCommand(c,incr);
-}
-
-void decrbyCommand(client *c) {
-    long long incr;
-
-    if (getLongLongFromObjectOrReply(c, c->argv[2], &incr, NULL) != C_OK) return;
-    /* Overflow check: negating LLONG_MIN will cause an overflow */
-    if (incr == LLONG_MIN) {
-        addReplyError(c, "decrement would overflow");
-        return;
-    }
-    incrDecrCommand(c,-incr);
-}
-
-void incrbyfloatCommand(client *c) {
-    long double incr, value;
-
-    dictEntryLink link;
-    kvobj *o = lookupKeyWriteWithLink(c->db,c->argv[1],&link);
-    if (checkType(c,o,OBJ_STRING)) return;
-    if (getLongDoubleFromObjectOrReply(c,o,&value,NULL) != C_OK ||
-        getLongDoubleFromObjectOrReply(c,c->argv[2],&incr,NULL) != C_OK)
-        return;
-
-    value += incr;
-    if (isnan(value) || isinf(value)) {
-        addReplyError(c,"increment would produce NaN or Infinity");
-        return;
-    }
-    robj *new = createStringObjectFromLongDouble(value,1);
-    if (o)
-        dbReplaceValueWithLink(c->db, c->argv[1], &new, link);
-    else
-        dbAddByLink(c->db, c->argv[1], &new, &link);
-    keyModified(c,c->db,c->argv[1],new,1);
-    notifyKeyspaceEvent(NOTIFY_STRING,"incrbyfloat",c->argv[1],c->db->id);
-    server.dirty++;
-    addReplyBulk(c,new);
-
-    /* Always replicate INCRBYFLOAT as a SET command with the final value
-     * in order to make sure that differences in float precision or formatting
-     * will not create differences in replicas or after an AOF restart. */
-    rewriteClientCommandArgument(c,0,shared.set);
-    rewriteClientCommandArgument(c,2,new);
-    rewriteClientCommandArgument(c,3,shared.keepttl);
-}
-
-void appendCommand(client *c) {
-    size_t totlen;
-    robj *append;
-    kvobj *o;
-    size_t oldsize = 0;
-
-    dictEntryLink link;
-    o = lookupKeyWriteWithLink(c->db,c->argv[1],&link);
-    if (o == NULL) {
-        /* Create the key */
-        c->argv[2] = tryObjectEncoding(c->argv[2]);
-        o = dbAddByLink(c->db, c->argv[1], &c->argv[2], &link);
-        incrRefCount(c->argv[2]);
-        totlen = stringObjectLen(c->argv[2]);
-    } else {
-        /* Key exists, check type */
-        if (checkType(c,o,OBJ_STRING))
-            return;
-
-        /* "append" is an argument, so always an sds */
-        append = c->argv[2];
-        size_t append_len = sdslen(append->ptr);
-        if (checkStringLength(c,stringObjectLen(o),append_len) != C_OK)
-            return;
-
-        /* Append the value */
-        o = dbUnshareStringValueByLink(c->db,c->argv[1],o,link);
-        if (server.memory_tracking_per_slot)
-            oldsize = stringObjectAllocSize(o);
-        o->ptr = sdscatlen(o->ptr,append->ptr,append_len);
-        if (server.memory_tracking_per_slot)
-            updateSlotAllocSize(c->db, getKeySlot(c->argv[1]->ptr), oldsize, stringObjectAllocSize(o));
-        totlen = sdslen(o->ptr);
-        int64_t oldlen = totlen - append_len;
-        updateKeysizesHist(c->db, getKeySlot(c->argv[1]->ptr), OBJ_STRING, oldlen, totlen);
-    }
-    keyModified(c,c->db,c->argv[1],o,1);
-    notifyKeyspaceEvent(NOTIFY_STRING,"append",c->argv[1],c->db->id);
-    server.dirty++;
-
-    addReplyLongLong(c,totlen);
-}
-
-void strlenCommand(client *c) {
-    kvobj *kv;
-    if ((kv = lookupKeyReadOrReply(c, c->argv[1], shared.czero)) == NULL ||
-        checkType(c, kv, OBJ_STRING)) return;
-    addReplyLongLong(c,stringObjectLen(kv));
-}
-
-/* LCS key1 key2 [LEN] [IDX] [MINMATCHLEN <len>] [WITHMATCHLEN] */
-void lcsCommand(client *c) {
-    uint32_t i, j;
-    long long minmatchlen = 0;
-    sds a = NULL, b = NULL;
-    int getlen = 0, getidx = 0, withmatchlen = 0;
-
-    kvobj *obja = lookupKeyRead(c->db, c->argv[1]);
-    kvobj *objb = lookupKeyRead(c->db, c->argv[2]);
-    if ((obja && obja->type != OBJ_STRING) ||
-        (objb && objb->type != OBJ_STRING))
-    {
-        addReplyError(c,
-            "The specified keys must contain string values");
-        /* Don't cleanup the objects, we need to do that
-         * only after calling getDecodedObject(). */
-        obja = NULL;
-        objb = NULL;
-        goto cleanup;
-    }
-    obja = obja ? getDecodedObject(obja) : createStringObject("",0);
-    objb = objb ? getDecodedObject(objb) : createStringObject("",0);
-    a = obja->ptr;
-    b = objb->ptr;
-
-    for (j = 3; j < (uint32_t)c->argc; j++) {
-        char *opt = c->argv[j]->ptr;
-        int moreargs = (c->argc-1) - j;
-
-        if (!strcasecmp(opt,"IDX")) {
-            getidx = 1;
-        } else if (!strcasecmp(opt,"LEN")) {
-            getlen = 1;
-        } else if (!strcasecmp(opt,"WITHMATCHLEN")) {
-            withmatchlen = 1;
-        } else if (!strcasecmp(opt,"MINMATCHLEN") && moreargs) {
-            if (getLongLongFromObjectOrReply(c,c->argv[j+1],&minmatchlen,NULL)
-                != C_OK) goto cleanup;
-            if (minmatchlen < 0) minmatchlen = 0;
-            j++;
-        } else {
-            addReplyErrorObject(c,shared.syntaxerr);
-            goto cleanup;
-        }
-    }
-
-    /* Complain if the user passed ambiguous parameters. */
-    if (getlen && getidx) {
-        addReplyError(c,
-            "If you want both the length and indexes, please just use IDX.");
-        goto cleanup;
-    }
-
-    /* Detect string truncation or later overflows. */
-    if (sdslen(a) >= UINT32_MAX-1 || sdslen(b) >= UINT32_MAX-1) {
-        addReplyError(c, "String too long for LCS");
-        goto cleanup;
-    }
-
-    /* Compute the LCS using the vanilla dynamic programming technique of
-     * building a table of LCS(x,y) substrings. */
-    uint32_t alen = sdslen(a);
-    uint32_t blen = sdslen(b);
-
-    /* Setup an uint32_t array to store at LCS[i,j] the length of the
-     * LCS A0..i-1, B0..j-1. Note that we have a linear array here, so
-     * we index it as LCS[j+(blen+1)*i] */
-    #define LCS(A,B) lcs[(B)+((A)*(blen+1))]
-
-    /* Try to allocate the LCS table, and abort on overflow or insufficient memory. */
-    unsigned long long lcssize = (unsigned long long)(alen+1)*(blen+1); /* Can't overflow due to the size limits above. */
-    unsigned long long lcsalloc = lcssize * sizeof(uint32_t);
-    uint32_t *lcs = NULL;
-    if (lcsalloc < SIZE_MAX && lcsalloc / lcssize == sizeof(uint32_t)) {
-        if (lcsalloc > (size_t)server.proto_max_bulk_len) {
-            addReplyError(c, "Insufficient memory, transient memory for LCS exceeds proto-max-bulk-len");
-            goto cleanup;
-        }
-        lcs = ztrymalloc(lcsalloc);
-    }
-    if (!lcs) {
-        addReplyError(c, "Insufficient memory, failed allocating transient memory for LCS");
-        goto cleanup;
-    }
-
-    /* Start building the LCS table. */
-    for (uint32_t i = 0; i <= alen; i++) {
-        for (uint32_t j = 0; j <= blen; j++) {
-            if (i == 0 || j == 0) {
-                /* If one substring has length of zero, the
-                 * LCS length is zero. */
-                LCS(i,j) = 0;
-            } else if (a[i-1] == b[j-1]) {
-                /* The len LCS (and the LCS itself) of two
-                 * sequences with the same final character, is the
-                 * LCS of the two sequences without the last char
-                 * plus that last char. */
-                LCS(i,j) = LCS(i-1,j-1)+1;
-            } else {
-                /* If the last character is different, take the longest
-                 * between the LCS of the first string and the second
-                 * minus the last char, and the reverse. */
-                uint32_t lcs1 = LCS(i-1,j);
-                uint32_t lcs2 = LCS(i,j-1);
-                LCS(i,j) = lcs1 > lcs2 ? lcs1 : lcs2;
-            }
-        }
-    }
-
-    /* Store the actual LCS string in "result" if needed. We create
-     * it backward, but the length is already known, we store it into idx. */
-    uint32_t idx = LCS(alen,blen);
-    sds result = NULL;        /* Resulting LCS string. */
-    void *arraylenptr = NULL; /* Deferred length of the array for IDX. */
-    uint32_t arange_start = alen, /* alen signals that values are not set. */
-             arange_end = 0,
-             brange_start = 0,
-             brange_end = 0;
-
-    /* Do we need to compute the actual LCS string? Allocate it in that case. */
-    int computelcs = getidx || !getlen;
-    if (computelcs) result = sdsnewlen(SDS_NOINIT,idx);
-
-    /* Start with a deferred array if we have to emit the ranges. */
-    uint32_t arraylen = 0;  /* Number of ranges emitted in the array. */
-    if (getidx) {
-        addReplyMapLen(c,2);
-        addReplyBulkCString(c,"matches");
-        arraylenptr = addReplyDeferredLen(c);
-    }
-
-    i = alen, j = blen;
-    while (computelcs && i > 0 && j > 0) {
-        int emit_range = 0;
-        if (a[i-1] == b[j-1]) {
-            /* If there is a match, store the character and reduce
-             * the indexes to look for a new match. */
-            result[idx-1] = a[i-1];
-
-            /* Track the current range. */
-            if (arange_start == alen) {
-                arange_start = i-1;
-                arange_end = i-1;
-                brange_start = j-1;
-                brange_end = j-1;
-            } else {
-                /* Let's see if we can extend the range backward since
-                 * it is contiguous. */
-                if (arange_start == i && brange_start == j) {
-                    arange_start--;
-                    brange_start--;
-                } else {
-                    emit_range = 1;
-                }
-            }
-            /* Emit the range if we matched with the first byte of
-             * one of the two strings. We'll exit the loop ASAP. */
-            if (arange_start == 0 || brange_start == 0) emit_range = 1;
-            idx--; i--; j--;
-        } else {
-            /* Otherwise reduce i and j depending on the largest
-             * LCS between, to understand what direction we need to go. */
-            uint32_t lcs1 = LCS(i-1,j);
-            uint32_t lcs2 = LCS(i,j-1);
-            if (lcs1 > lcs2)
-                i--;
-            else
-                j--;
-            if (arange_start != alen) emit_range = 1;
-        }
-
-        /* Emit the current range if needed. */
-        uint32_t match_len = arange_end - arange_start + 1;
-        if (emit_range) {
-            if (minmatchlen == 0 || match_len >= minmatchlen) {
-                if (arraylenptr) {
-                    addReplyArrayLen(c,2+withmatchlen);
-                    addReplyArrayLen(c,2);
-                    addReplyLongLong(c,arange_start);
-                    addReplyLongLong(c,arange_end);
-                    addReplyArrayLen(c,2);
-                    addReplyLongLong(c,brange_start);
-                    addReplyLongLong(c,brange_end);
-                    if (withmatchlen) addReplyLongLong(c,match_len);
-                    arraylen++;
-                }
-            }
-            arange_start = alen; /* Restart at the next match. */
-        }
-    }
-
-    /* Signal modified key, increment dirty, ... */
-
-    /* Reply depending on the given options. */
-    if (arraylenptr) {
-        addReplyBulkCString(c,"len");
-        addReplyLongLong(c,LCS(alen,blen));
-        setDeferredArrayLen(c,arraylenptr,arraylen);
-    } else if (getlen) {
-        addReplyLongLong(c,LCS(alen,blen));
-    } else {
-        addReplyBulkSds(c,result);
-        result = NULL;
-    }
-
-    /* Cleanup. */
-    sdsfree(result);
-    zfree(lcs);
-
-cleanup:
-    if (obja) decrRefCount(obja);
-    if (objb) decrRefCount(objb);
-    return;
-}
-
-/* Validate that a digest string has the correct length (DIGEST_HEX_LENGTH characters).
- * Note: This only validates length, not whether characters are valid hex digits.
- * Invalid hex characters will simply fail to match during comparison.
- * Returns C_OK if length is correct, C_ERR otherwise. */
-int validateHexDigest(client *c, const sds digest) {
-    size_t len = sdslen(digest);
-    if (len != DIGEST_HEX_LENGTH) {
-        addReplyErrorFormat(c, "must be exactly %d hexadecimal characters", DIGEST_HEX_LENGTH);
-        return C_ERR;
-    }
-    return C_OK;
-}
-
-/* Return the xxh3 hash of a string object as a hex string stored in an sds.
- * The user is responsible for freeing the sds. */
-sds stringDigest(robj *o) {
-    serverAssert(o && o->type == OBJ_STRING);
-
-    XXH64_hash_t hash = 0;
-    if (sdsEncodedObject(o)) {
-        hash = XXH3_64bits(o->ptr, sdslen(o->ptr));
-    } else if (o->encoding == OBJ_ENCODING_INT) {
-        char buf[LONG_STR_SIZE];
-        size_t len = ll2string(buf,sizeof(buf),(long)o->ptr);
-        hash = XXH3_64bits(buf, len);
-    } else {
-        serverPanic("Wrong obj->encoding stringDigest()");
-    }
-
-    sds hexhash = sdsempty();
-    hexhash = sdscatprintf(hexhash, "%0" STRINGIFY(DIGEST_HEX_LENGTH) PRIx64, hash);
-    return hexhash;
-}
-
-/* DIGEST key
- *
- * Return digest of the key's value computed via XXH3 hash. The key must be a
- * STRING object. */
-void digestCommand(client *c) {
-    kvobj *o;
-
-    if ((o = lookupKeyReadOrReply(c, c->argv[1], shared.null[c->resp])) == NULL)
-        return;
-
-    if (checkType(c,o,OBJ_STRING))
-        return;
-
-    addReplyBulkSds(c, stringDigest(o));
-}
-