Example #1
0
File: t_hash.cpp Project: cvan/ardb
 int Ardb::HashGetAll(Context& ctx, const Slice& key, RedisReply& reply)
 {
     ValueObject meta;
     int err = GetMetaValue(ctx, key, HASH_META, meta);
     CHECK_ARDB_RETURN_VALUE(ctx.reply, err);
     reply.type = REDIS_REPLY_ARRAY;
     if (0 != err)
     {
         return 0;
     }
     HashIterator iter;
     err = HashIter(ctx, meta, "", iter, true);
     CHECK_ARDB_RETURN_VALUE(ctx.reply, err);
     reply.type = REDIS_REPLY_ARRAY;
     while (iter.Valid())
     {
         const Data* field = iter.Field();
         Data* value = iter.Value();
         RedisReply& r = reply.AddMember();
         fill_value_reply(r, *field);
         RedisReply& r1 = reply.AddMember();
         fill_value_reply(r1, *value);
         iter.Next();
     }
     return 0;
 }
Example #2
0
File: t_hash.cpp Project: cvan/ardb
 int Ardb::RenameHash(Context& ctx, DBID srcdb, const std::string& srckey, DBID dstdb, const std::string& dstkey)
 {
     Context tmpctx;
     tmpctx.currentDB = srcdb;
     ValueObject v;
     int err = GetMetaValue(tmpctx, srckey, HASH_META, v);
     CHECK_ARDB_RETURN_VALUE(ctx.reply, err);
     if (0 != err)
     {
         fill_error_reply(ctx.reply, "no such key or some error");
         return 0;
     }
     if (v.meta.encoding == COLLECTION_ECODING_ZIPMAP)
     {
         DelKeyValue(tmpctx, v.key);
         v.key.encode_buf.Clear();
         v.key.db = dstdb;
         v.key.key = dstkey;
         v.meta.expireat = 0;
         SetKeyValue(ctx, v);
     }
     else
     {
         HashIterator iter;
         HashIter(ctx, v, "", iter, false);
         tmpctx.currentDB = dstdb;
         ValueObject dstmeta;
         dstmeta.key.type = KEY_META;
         dstmeta.key.key = dstkey;
         dstmeta.type = HASH_META;
         dstmeta.meta.encoding = COLLECTION_ECODING_ZIPMAP;
         BatchWriteGuard guard(GetKeyValueEngine());
         while (iter.Valid())
         {
             HashSet(tmpctx, dstmeta, *(iter.Field()), *(iter.Value()));
             iter.Next();
         }
         SetKeyValue(tmpctx, dstmeta);
         tmpctx.currentDB = srcdb;
         DeleteKey(tmpctx, srckey);
     }
     ctx.data_change = true;
     return 0;
 }
Example #3
0
File: t_hash.cpp Project: cvan/ardb
 int Ardb::HKeys(Context& ctx, RedisCommandFrame& cmd)
 {
     ValueObject meta;
     int err = GetMetaValue(ctx, cmd.GetArguments()[0], HASH_META, meta);
     CHECK_ARDB_RETURN_VALUE(ctx.reply, err);
     ctx.reply.type = REDIS_REPLY_ARRAY;
     if (0 != err)
     {
         return 0;
     }
     HashIterator iter;
     err = HashIter(ctx, meta, "", iter, true);
     CHECK_ARDB_RETURN_VALUE(ctx.reply, err);
     ctx.reply.type = REDIS_REPLY_ARRAY;
     while (iter.Valid())
     {
         const Data* value = iter.Field();
         RedisReply& r = ctx.reply.AddMember();
         std::string tmp;
         fill_str_reply(r, value->GetDecodeString(tmp));
         iter.Next();
     }
     return 0;
 }
Example #4
0
File: t_hash.cpp Project: cvan/ardb
    int Ardb::HScan(Context& ctx, RedisCommandFrame& cmd)
    {
        std::string pattern;
        uint32 limit = 10000; //return max 10000 keys one time
        if (cmd.GetArguments().size() > 2)
        {
            for (uint32 i = 2; i < cmd.GetArguments().size(); i++)
            {
                if (!strcasecmp(cmd.GetArguments()[i].c_str(), "count"))
                {
                    if (i + 1 >= cmd.GetArguments().size() || !string_touint32(cmd.GetArguments()[i + 1], limit))
                    {
                        fill_error_reply(ctx.reply, "value is not an integer or out of range");
                        return 0;
                    }
                    i++;
                }
                else if (!strcasecmp(cmd.GetArguments()[i].c_str(), "match"))
                {
                    if (i + 1 >= cmd.GetArguments().size())
                    {
                        fill_error_reply(ctx.reply, "'MATCH' need one args followed");
                        return 0;
                    }
                    pattern = cmd.GetArguments()[i + 1];
                    i++;
                }
                else
                {
                    fill_error_reply(ctx.reply, "Syntax error, try scan 0 ");
                    return 0;
                }
            }
        }
        ValueObject meta;
        int err = GetMetaValue(ctx, cmd.GetArguments()[0], HASH_META, meta);
        CHECK_ARDB_RETURN_VALUE(ctx.reply, err);

        RedisReply& r1 = ctx.reply.AddMember();
        RedisReply& r2 = ctx.reply.AddMember();
        r2.type = REDIS_REPLY_ARRAY;
        if (0 != err)
        {
            fill_str_reply(r1, "0");
            return 0;
        }
        const std::string& cursor = cmd.GetArguments()[1];
        HashIterator iter;
        HashIter(ctx, meta, cursor == "0" ? "" : cursor, iter, true);
        while (iter.Valid())
        {
            const Data* field = iter.Field();
            std::string tmp;
            field->GetDecodeString(tmp);
            if ((pattern.empty() || fnmatch(pattern.c_str(), tmp.c_str(), 0) == 0))
            {
                RedisReply& rr1 = r2.AddMember();
                RedisReply& rr2 = r2.AddMember();
                fill_str_reply(rr1, tmp);
                fill_value_reply(rr2, *(iter.Value()));
            }
            if (r2.MemberSize() >= (limit * 2))
            {
                break;
            }
            iter.Next();
        }
        if (iter.Valid())
        {
            iter.Next();
            const Data* next_field = iter.Field();
            std::string tmp;
            fill_str_reply(r1, next_field->GetDecodeString(tmp));
        }
        else
        {
            fill_str_reply(r1, "0");
        }
        return 0;
    }