homework-jianmu/src/inc/vnode.h

76 lines
2.2 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TDENGINE_VNODE_H
#define TDENGINE_VNODE_H
#ifdef __cplusplus
extern "C" {
#endif
typedef enum _VN_STATUS {
TAOS_VN_STATUS_INIT,
TAOS_VN_STATUS_READY,
TAOS_VN_STATUS_CLOSING,
TAOS_VN_STATUS_UPDATING,
TAOS_VN_STATUS_RESET,
} EVnStatus;
typedef struct {
int len;
void *rsp;
void *qhandle; //used by query and retrieve msg
} SRspRet;
typedef struct {
SRspRet rspRet;
void *pCont;
int32_t contLen;
SRpcMsg rpcMsg;
} SReadMsg;
extern char *vnodeStatus[];
int32_t vnodeCreate(SCreateVnodeMsg *pVnodeCfg);
int32_t vnodeDrop(int32_t vgId);
int32_t vnodeOpen(int32_t vgId, char *rootDir);
int32_t vnodeAlter(void *pVnode, SCreateVnodeMsg *pVnodeCfg);
int32_t vnodeClose(int32_t vgId);
void* vnodeAcquire(int32_t vgId); // add refcount
void* vnodeAcquireRqueue(int32_t vgId); // add refCount, get read queue
void* vnodeAcquireWqueue(int32_t vgId); // add recCount, get write queue
void vnodeRelease(void *pVnode); // dec refCount
void* vnodeGetWal(void *pVnode);
int32_t vnodeProcessWrite(void *pVnode, int qtype, void *pHead, void *item);
int32_t vnodeCheckWrite(void *pVnode);
int32_t vnodeGetVnodeList(int32_t vnodeList[], int32_t *numOfVnodes);
void vnodeBuildStatusMsg(void *param);
void vnodeConfirmForward(void *param, uint64_t version, int32_t code);
void vnodeSetAccess(SVgroupAccess *pAccess, int32_t numOfVnodes);
int32_t vnodeInitResources();
void vnodeCleanupResources();
int32_t vnodeProcessRead(void *pVnode, SReadMsg *pReadMsg);
int32_t vnodeCheckRead(void *pVnode);
#ifdef __cplusplus
}
#endif
#endif