79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_CONSUMER_H_
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#define _TD_CONSUMER_H_
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#include "tlist.h"
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#include "tarray.h"
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#include "hash.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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//consumer handle
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struct tmq_consumer_t;
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typedef struct tmq_consumer_t tmq_consumer_t;
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//consumer config
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struct tmq_consumer_config_t;
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typedef struct tmq_consumer_config_t tmq_consumer_config_t;
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//response err
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struct tmq_resp_err_t;
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typedef struct tmq_resp_err_t tmq_resp_err_t;
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struct tmq_message_t;
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typedef struct tmq_message_t tmq_message_t;
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struct tmq_col_batch_t;
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typedef struct tmq_col_batch_t tmq_col_batch_t;
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//get content of message
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tmq_col_batch_t* tmq_get_msg_col_by_idx(tmq_message_t*, int32_t col_id);
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tmq_col_batch_t* tmq_get_msg_col_by_name(tmq_message_t*, const char*);
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//consumer config
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int32_t tmq_conf_set(tmq_consumer_config_t* , const char* config_key, const char* config_value, char* errstr, int32_t errstr_cap);
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//consumer initialization
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//resouces are supposed to be free by users by calling tmq_consumer_destroy
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tmq_consumer_t* tmq_consumer_new(tmq_consumer_config_t* , char* errstr, int32_t errstr_cap);
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//subscribe
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tmq_resp_err_t tmq_subscribe(tmq_consumer_t*, const SList*);
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tmq_resp_err_t tmq_unsubscribe(tmq_consumer_t*);
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//consume
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//resouces are supposed to be free by users by calling tmq_message_destroy
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tmq_message_t* tmq_consume_poll(tmq_consumer_t*, int64_t blocking_time);
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//destroy message and free memory
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void tmq_message_destroy(tmq_message_t*);
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//close consumer
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int32_t tmq_consumer_close(tmq_consumer_t*);
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//destroy consumer
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void tmq_consumer_destroy(tmq_message_t*);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_CONSUMER_H_*/
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