125 lines
3.3 KiB
C
125 lines
3.3 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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#include "vnodeDef.h"
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SVnodeMgr vnodeMgr = {.vnodeInitFlag = TD_MOD_UNINITIALIZED};
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static void* loop(void* arg);
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int vnodeInit(const SVnodeOpt *pOption) {
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if (TD_CHECK_AND_SET_MODE_INIT(&(vnodeMgr.vnodeInitFlag)) == TD_MOD_INITIALIZED) {
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return 0;
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}
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vnodeMgr.stop = false;
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vnodeMgr.putReqToVQueryQFp = pOption->putReqToVQueryQFp;
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// Start commit handers
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if (pOption->nthreads > 0) {
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vnodeMgr.nthreads = pOption->nthreads;
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vnodeMgr.threads = (pthread_t*)calloc(pOption->nthreads, sizeof(pthread_t));
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if (vnodeMgr.threads == NULL) {
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return -1;
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}
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pthread_mutex_init(&(vnodeMgr.mutex), NULL);
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pthread_cond_init(&(vnodeMgr.hasTask), NULL);
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TD_DLIST_INIT(&(vnodeMgr.queue));
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for (uint16_t i = 0; i < pOption->nthreads; i++) {
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pthread_create(&(vnodeMgr.threads[i]), NULL, loop, NULL);
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pthread_setname_np(vnodeMgr.threads[i], "VND Commit Thread");
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}
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} else {
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// TODO: if no commit thread is set, then another mechanism should be
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// given. Otherwise, it is a false.
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ASSERT(0);
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}
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if (walInit() < 0) {
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return -1;
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}
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return 0;
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}
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void vnodeClear() {
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if (TD_CHECK_AND_SET_MOD_CLEAR(&(vnodeMgr.vnodeInitFlag)) == TD_MOD_UNINITIALIZED) {
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return;
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}
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walCleanUp();
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// Stop commit handler
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pthread_mutex_lock(&(vnodeMgr.mutex));
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vnodeMgr.stop = true;
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pthread_cond_broadcast(&(vnodeMgr.hasTask));
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pthread_mutex_unlock(&(vnodeMgr.mutex));
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for (uint16_t i = 0; i < vnodeMgr.nthreads; i++) {
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pthread_join(vnodeMgr.threads[i], NULL);
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}
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tfree(vnodeMgr.threads);
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pthread_cond_destroy(&(vnodeMgr.hasTask));
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pthread_mutex_destroy(&(vnodeMgr.mutex));
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}
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int vnodeScheduleTask(SVnodeTask* pTask) {
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pthread_mutex_lock(&(vnodeMgr.mutex));
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TD_DLIST_APPEND(&(vnodeMgr.queue), pTask);
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pthread_cond_signal(&(vnodeMgr.hasTask));
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pthread_mutex_unlock(&(vnodeMgr.mutex));
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return 0;
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}
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void vnodePutReqToVQueryQ(SVnode* pVnode, struct SRpcMsg* pReq) {
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assert(vnodeMgr.putReqToVQueryQFp);
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assert(pVnode->pDnode);
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(*vnodeMgr.putReqToVQueryQFp)(pVnode->pDnode, pReq);
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}
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/* ------------------------ STATIC METHODS ------------------------ */
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static void* loop(void* arg) {
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SVnodeTask* pTask;
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for (;;) {
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pthread_mutex_lock(&(vnodeMgr.mutex));
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for (;;) {
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pTask = TD_DLIST_HEAD(&(vnodeMgr.queue));
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if (pTask == NULL) {
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if (vnodeMgr.stop) {
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pthread_mutex_unlock(&(vnodeMgr.mutex));
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return NULL;
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} else {
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pthread_cond_wait(&(vnodeMgr.hasTask), &(vnodeMgr.mutex));
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}
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} else {
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TD_DLIST_POP(&(vnodeMgr.queue), pTask);
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break;
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}
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}
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pthread_mutex_unlock(&(vnodeMgr.mutex));
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(*(pTask->execute))(pTask->arg);
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}
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return NULL;
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} |