192 lines
4.4 KiB
C
192 lines
4.4 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_VNODE_H_
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#define _TD_VNODE_H_
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#include "os.h"
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#include "trpc.h"
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#include "meta.h"
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#include "tarray.h"
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#include "tq.h"
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#include "tsdb.h"
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#include "wal.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* ------------------------ TYPES EXPOSED ------------------------ */
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typedef struct SVnode SVnode;
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typedef struct SVnodeCfg {
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/** vnode buffer pool options */
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struct {
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/** write buffer size */
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uint64_t wsize;
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uint64_t ssize;
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uint64_t lsize;
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/** use heap allocator or arena allocator */
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bool isHeapAllocator;
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};
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/** time to live of tables in this vnode */
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uint32_t ttl;
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/** data to keep in this vnode */
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uint32_t keep;
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/** if TS data is eventually consistency */
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bool isWeak;
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/** TSDB config */
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STsdbCfg tsdbCfg;
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/** META config */
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SMetaCfg metaCfg;
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/** TQ config */
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STqCfg tqCfg;
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/** WAL config */
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SWalCfg walCfg;
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} SVnodeCfg;
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/* ------------------------ SVnode ------------------------ */
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/**
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* @brief Initialize the vnode module
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*
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* @param nthreads number of commit threads. 0 for no threads and
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* a schedule queue should be given (TODO)
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* @return int 0 for success and -1 for failure
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*/
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int vnodeInit(uint16_t nthreads);
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/**
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* @brief clear a vnode
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*
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*/
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void vnodeClear();
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/**
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* @brief Open a VNODE.
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*
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* @param path path of the vnode
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* @param pVnodeCfg options of the vnode
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* @return SVnode* The vnode object
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*/
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SVnode *vnodeOpen(const char *path, const SVnodeCfg *pVnodeCfg);
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/**
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* @brief Close a VNODE
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*
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* @param pVnode The vnode object to close
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*/
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void vnodeClose(SVnode *pVnode);
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/**
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* @brief Destroy a VNODE.
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*
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* @param path Path of the VNODE.
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*/
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void vnodeDestroy(const char *path);
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/**
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* @brief Process an array of write messages.
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*
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* @param pVnode The vnode object.
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* @param pMsgs The array of SRpcMsg
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* @return int 0 for success, -1 for failure
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*/
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int vnodeProcessWMsgs(SVnode *pVnode, SArray *pMsgs);
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/**
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* @brief Apply a write request message.
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*
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* @param pVnode The vnode object.
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* @param pMsg The request message
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* @param pRsp The response message
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* @return int 0 for success, -1 for failure
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*/
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int vnodeApplyWMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
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/**
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* @brief Process a consume message.
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*
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* @param pVnode The vnode object.
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* @param pMsg The request message
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* @param pRsp The response message
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* @return int 0 for success, -1 for failure
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*/
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int vnodeProcessCMsg(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
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/**
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* @brief Process the sync request
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*
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* @param pVnode
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* @param pMsg
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* @param pRsp
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* @return int
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*/
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int vnodeProcessSyncReq(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
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/**
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* @brief Process a query message.
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*
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* @param pVnode The vnode object.
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* @param pMsg The request message
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* @param pRsp The response message
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* @return int 0 for success, -1 for failure
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*/
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int vnodeProcessQueryReq(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
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/**
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* @brief Process a fetch message.
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*
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* @param pVnode The vnode object.
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* @param pMsg The request message
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* @param pRsp The response message
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* @return int 0 for success, -1 for failure
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*/
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int vnodeProcessFetchReq(SVnode *pVnode, SRpcMsg *pMsg, SRpcMsg **pRsp);
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/* ------------------------ SVnodeCfg ------------------------ */
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/**
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* @brief Initialize VNODE options.
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*
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* @param pOptions The options object to be initialized. It should not be NULL.
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*/
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void vnodeOptionsInit(SVnodeCfg *pOptions);
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/**
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* @brief Clear VNODE options.
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*
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* @param pOptions Options to clear.
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*/
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void vnodeOptionsClear(SVnodeCfg *pOptions);
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/* ------------------------ FOR COMPILE ------------------------ */
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int32_t vnodeAlter(SVnode *pVnode, const SVnodeCfg *pCfg);
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int32_t vnodeCompact(SVnode *pVnode);
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int32_t vnodeSync(SVnode *pVnode);
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int32_t vnodeGetLoad(SVnode *pVnode, SVnodeLoad *pLoad);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_VNODE_H_*/
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