pika_bit.h

// Copyright (c) 2015-present, Qihoo, Inc.  All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.

#ifndef PIKA_BIT_H_
#define PIKA_BIT_H_

#include "pika_command.h"

/*
 * bitoperation
 */
// TODO: 17/3/5 by zmyer
class BitGetCmd : public Cmd {
public:
    BitGetCmd() { };

    virtual void Do();

private:
    std::string key_;
    int64_t bit_offset_;

    virtual void Clear() {
        key_ = "";
        bit_offset_ = -1;
    }

    virtual void DoInitial(PikaCmdArgsType &argvs, const CmdInfo *const ptr_info);
};

// TODO: 17/3/5 by zmyer
class BitSetCmd : public Cmd {
public:
    BitSetCmd() { };

    virtual void Do();

private:
    std::string key_;
    int64_t bit_offset_;
    int64_t on_;

    virtual void Clear() {
        key_ = "";
        bit_offset_ = -1;
        on_ = -1;
    }

    virtual void DoInitial(PikaCmdArgsType &argvs, const CmdInfo *const ptr_info);
};

class BitCountCmd : public Cmd {
public:
    BitCountCmd() { }

    virtual void Do();

private:
    std::string key_;
    bool count_all_;
    int64_t start_offset_;
    int64_t end_offset_;

    virtual void Clear() {
        key_ = "";
        count_all_ = false;
        start_offset_ = -1;
        end_offset_ = -1;
    }

    virtual void DoInitial(PikaCmdArgsType &argvs, const CmdInfo *const ptr_info);
};

class BitPosCmd : public Cmd {
public:
    BitPosCmd() { };

    virtual void Do();

private:
    std::string key_;
    bool pos_all_;
    bool endoffset_set_;
    int64_t bit_val_;
    int64_t start_offset_;
    int64_t end_offset_;

    virtual void Clear() {
        key_ = "";
        pos_all_ = false;
        endoffset_set_ = false;
        bit_val_ = -1;
        start_offset_ = -1;
        end_offset_ = -1;
    }

    virtual void DoInitial(PikaCmdArgsType &argvs, const CmdInfo *const ptr_info);
};

class BitOpCmd : public Cmd {
public:
    BitOpCmd() { };

    virtual void Do();

private:
    std::string dest_key_;
    std::vector<std::string> src_keys_;
    nemo::BitOpType op_;

    virtual void Clear() {
        dest_key_ = "";
        src_keys_.clear();
        op_ = nemo::kBitOpDefault;
    }

    virtual void DoInitial(PikaCmdArgsType &argvs, const CmdInfo *const ptr_info);
};

#endif