homework-jianmu/source/dnode/mgmt/qm/qmInt.c

127 lines
3.3 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 "qmInt.h"
static int32_t qmRequire(SMgmtWrapper *pWrapper, bool *required) { return dndReadFile(pWrapper, required); }
static void qmInitOption(SQnodeMgmt *pMgmt, SQnodeOpt *pOption) {
SMsgCb msgCb = dndCreateMsgcb(pMgmt->pWrapper);
msgCb.queueFps[QUERY_QUEUE] = qmPutMsgToQueryQueue;
msgCb.queueFps[FETCH_QUEUE] = qmPutMsgToFetchQueue;
msgCb.qsizeFp = qmGetQueueSize;
pOption->msgCb = msgCb;
}
static int32_t qmOpenImp(SQnodeMgmt *pMgmt) {
SQnodeOpt option = {0};
qmInitOption(pMgmt, &option);
pMgmt->pQnode = qndOpen(&option);
if (pMgmt->pQnode == NULL) {
dError("failed to open qnode since %s", terrstr());
return -1;
}
if (qmStartWorker(pMgmt) != 0) {
dError("failed to start qnode worker since %s", terrstr());
return -1;
}
bool deployed = true;
if (dndWriteFile(pMgmt->pWrapper, deployed) != 0) {
dError("failed to write qnode file since %s", terrstr());
return -1;
}
return 0;
}
static void qmCloseImp(SQnodeMgmt *pMgmt) {
if (pMgmt->pQnode != NULL) {
qmStopWorker(pMgmt);
qndClose(pMgmt->pQnode);
pMgmt->pQnode = NULL;
}
}
int32_t qmDrop(SMgmtWrapper *pWrapper) {
SQnodeMgmt *pMgmt = pWrapper->pMgmt;
if (pMgmt == NULL) return 0;
dInfo("qnode-mgmt start to drop");
bool deployed = false;
if (dndWriteFile(pWrapper, deployed) != 0) {
dError("failed to drop qnode since %s", terrstr());
return -1;
}
qmCloseImp(pMgmt);
taosRemoveDir(pMgmt->path);
pWrapper->pMgmt = NULL;
taosMemoryFree(pMgmt);
dInfo("qnode-mgmt is dropped");
return 0;
}
static void qmClose(SMgmtWrapper *pWrapper) {
SQnodeMgmt *pMgmt = pWrapper->pMgmt;
if (pMgmt == NULL) return;
dInfo("qnode-mgmt start to cleanup");
qmCloseImp(pMgmt);
pWrapper->pMgmt = NULL;
taosMemoryFree(pMgmt);
dInfo("qnode-mgmt is cleaned up");
}
int32_t qmOpen(SMgmtWrapper *pWrapper) {
dInfo("qnode-mgmt start to init");
SQnodeMgmt *pMgmt = taosMemoryCalloc(1, sizeof(SQnodeMgmt));
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 = qmOpenImp(pMgmt);
if (code != 0) {
dError("failed to init qnode-mgmt since %s", terrstr());
qmClose(pWrapper);
} else {
dInfo("qnode-mgmt is initialized");
}
return code;
}
void qmSetMgmtFp(SMgmtWrapper *pWrapper) {
SMgmtFp mgmtFp = {0};
mgmtFp.openFp = qmOpen;
mgmtFp.closeFp = qmClose;
mgmtFp.createMsgFp = qmProcessCreateReq;
mgmtFp.dropMsgFp = qmProcessDropReq;
mgmtFp.requiredFp = qmRequire;
qmInitMsgHandle(pWrapper);
pWrapper->name = "qnode";
pWrapper->fp = mgmtFp;
}