homework-jianmu/source/dnode/mgmt/sm/smInt.c

124 lines
3.2 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/>.
*/
#define _DEFAULT_SOURCE
#include "smInt.h"
static int32_t smRequire(SMgmtWrapper *pWrapper, bool *required) { return dndReadFile(pWrapper, required); }
static void smInitOption(SSnodeMgmt *pMgmt, SSnodeOpt *pOption) {
SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
pOption->msgCb = msgCb;
}
static int32_t smOpenImp(SSnodeMgmt *pMgmt) {
SSnodeOpt option = {0};
smInitOption(pMgmt, &option);
pMgmt->pSnode = sndOpen(pMgmt->path, &option);
if (pMgmt->pSnode == NULL) {
dError("failed to open snode since %s", terrstr());
return -1;
}
if (smStartWorker(pMgmt) != 0) {
dError("failed to start snode worker since %s", terrstr());
return -1;
}
bool deployed = true;
if (dndWriteFile(pMgmt->pWrapper, deployed) != 0) {
dError("failed to write snode file since %s", terrstr());
return -1;
}
return 0;
}
static void smCloseImp(SSnodeMgmt *pMgmt) {
if (pMgmt->pSnode != NULL) {
smStopWorker(pMgmt);
sndClose(pMgmt->pSnode);
pMgmt->pSnode = NULL;
}
}
int32_t smDrop(SMgmtWrapper *pWrapper) {
SSnodeMgmt *pMgmt = pWrapper->pMgmt;
if (pMgmt == NULL) return 0;
dInfo("snode-mgmt start to drop");
bool deployed = false;
if (dndWriteFile(pWrapper, deployed) != 0) {
dError("failed to drop snode since %s", terrstr());
return -1;
}
smCloseImp(pMgmt);
taosRemoveDir(pMgmt->path);
pWrapper->pMgmt = NULL;
taosMemoryFree(pMgmt);
dInfo("snode-mgmt is dropped");
return 0;
}
static void smClose(SMgmtWrapper *pWrapper) {
SSnodeMgmt *pMgmt = pWrapper->pMgmt;
if (pMgmt == NULL) return;
dInfo("snode-mgmt start to cleanup");
smCloseImp(pMgmt);
pWrapper->pMgmt = NULL;
taosMemoryFree(pMgmt);
dInfo("snode-mgmt is cleaned up");
}
int32_t smOpen(SMgmtWrapper *pWrapper) {
dInfo("snode-mgmt start to init");
SSnodeMgmt *pMgmt = taosMemoryCalloc(1, sizeof(SSnodeMgmt));
if (pMgmt == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
pMgmt->path = pWrapper->path;
pMgmt->pDnode = pWrapper->pDnode;
pMgmt->pWrapper = pWrapper;
pWrapper->pMgmt = pMgmt;
int32_t code = smOpenImp(pMgmt);
if (code != 0) {
dError("failed to init snode-mgmt since %s", terrstr());
smClose(pWrapper);
} else {
dInfo("snode-mgmt is initialized");
}
return code;
}
void smSetMgmtFp(SMgmtWrapper *pWrapper) {
SMgmtFp mgmtFp = {0};
mgmtFp.openFp = smOpen;
mgmtFp.closeFp = smClose;
mgmtFp.createMsgFp = smProcessCreateReq;
mgmtFp.dropMsgFp = smProcessDropReq;
mgmtFp.requiredFp = smRequire;
smInitMsgHandle(pWrapper);
pWrapper->name = "snode";
pWrapper->fp = mgmtFp;
}