288028876f
spopCommand() now runs spopWithCountCommand() in case the <count> param is found. Added intsetRandomMembers() to Intset: Copies N random members from the set into inputted 'values' array. Uses either the Knuth or Floyd sample algos depending on ratio count/size. Added setTypeRandomElements() to SET type: Returns a number of random elements from a non empty set. This is a version of setTypeRandomElement() that is modified in order to return multiple entries, using dictGetRandomKeys() and intsetRandomMembers(). Added tests for SPOP with <count>: unit/type/set, unit/scripting, integration/aof -- Cleaned up code a bit to match with required Redis coding style
52 lines
2.2 KiB
C
52 lines
2.2 KiB
C
/*
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* Copyright (c) 2009-2012, Pieter Noordhuis <pcnoordhuis at gmail dot com>
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* Copyright (c) 2009-2012, 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 __INTSET_H
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#define __INTSET_H
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#include <stdint.h>
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typedef struct intset {
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uint32_t encoding;
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uint32_t length;
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int8_t contents[];
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} intset;
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intset *intsetNew(void);
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intset *intsetAdd(intset *is, int64_t value, uint8_t *success);
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intset *intsetRemove(intset *is, int64_t value, int *success);
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uint8_t intsetFind(intset *is, int64_t value);
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int64_t intsetRandom(intset *is);
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int intsetRandomMembers(intset *is, int64_t* value, int count);
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uint8_t intsetGet(intset *is, uint32_t pos, int64_t *value);
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uint32_t intsetLen(intset *is);
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size_t intsetBlobLen(intset *is);
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#endif // __INTSET_H
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