homework-jianmu/source/util/src/tworker.c

329 lines
9.0 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 "tworker.h"
#include "taoserror.h"
#include "ulog.h"
typedef void *(*ThreadFp)(void *param);
int32_t tQWorkerInit(SQWorkerPool *pool) {
pool->qset = taosOpenQset();
pool->workers = calloc(sizeof(SQWorker), pool->max);
if (pool->workers == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
if (pthread_mutex_init(&pool->mutex, NULL)) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
for (int32_t i = 0; i < pool->max; ++i) {
SQWorker *worker = pool->workers + i;
worker->id = i;
worker->pool = pool;
}
uDebug("worker:%s is initialized, min:%d max:%d", pool->name, pool->min, pool->max);
return 0;
}
void tQWorkerCleanup(SQWorkerPool *pool) {
for (int32_t i = 0; i < pool->max; ++i) {
SQWorker *worker = pool->workers + i;
if (worker == NULL) continue;
if (taosCheckPthreadValid(worker->thread)) {
taosQsetThreadResume(pool->qset);
}
}
for (int32_t i = 0; i < pool->max; ++i) {
SQWorker *worker = pool->workers + i;
if (worker == NULL) continue;
if (taosCheckPthreadValid(worker->thread)) {
pthread_join(worker->thread, NULL);
}
}
tfree(pool->workers);
taosCloseQset(pool->qset);
pthread_mutex_destroy(&pool->mutex);
uDebug("worker:%s is closed", pool->name);
}
static void *tQWorkerThreadFp(SQWorker *worker) {
SQWorkerPool *pool = worker->pool;
FItem fp = NULL;
void * msg = NULL;
void * ahandle = NULL;
int32_t code = 0;
taosBlockSIGPIPE();
setThreadName(pool->name);
uDebug("worker:%s:%d is running", pool->name, worker->id);
while (1) {
if (taosReadQitemFromQset(pool->qset, (void **)&msg, &ahandle, &fp) == 0) {
uDebug("worker:%s:%d qset:%p, got no message and exiting", pool->name, worker->id, pool->qset);
break;
}
if (fp != NULL) {
(*fp)(ahandle, msg);
}
}
return NULL;
}
STaosQueue *tWorkerAllocQueue(SQWorkerPool *pool, void *ahandle, FItem fp, ThreadFp threadFp) {
pthread_mutex_lock(&pool->mutex);
STaosQueue *queue = taosOpenQueue();
if (queue == NULL) {
pthread_mutex_unlock(&pool->mutex);
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
taosSetQueueFp(queue, fp, NULL);
taosAddIntoQset(pool->qset, queue, ahandle);
// spawn a thread to process queue
if (pool->num < pool->max) {
do {
SQWorker *worker = pool->workers + pool->num;
pthread_attr_t thAttr;
pthread_attr_init(&thAttr);
pthread_attr_setdetachstate(&thAttr, PTHREAD_CREATE_JOINABLE);
if (pthread_create(&worker->thread, &thAttr, threadFp, worker) != 0) {
uError("worker:%s:%d failed to create thread to process since %s", pool->name, worker->id, strerror(errno));
taosCloseQueue(queue);
terrno = TSDB_CODE_OUT_OF_MEMORY;
queue = NULL;
break;
}
pthread_attr_destroy(&thAttr);
pool->num++;
uDebug("worker:%s:%d is launched, total:%d", pool->name, worker->id, pool->num);
} while (pool->num < pool->min);
}
pthread_mutex_unlock(&pool->mutex);
uDebug("worker:%s, queue:%p is allocated, ahandle:%p", pool->name, queue, ahandle);
return queue;
}
STaosQueue *tQWorkerAllocQueue(SQWorkerPool *pool, void *ahandle, FItem fp) {
return tWorkerAllocQueue(pool, ahandle, fp, (ThreadFp)tQWorkerThreadFp);
}
void tQWorkerFreeQueue(SQWorkerPool *pool, STaosQueue *queue) {
taosCloseQueue(queue);
uDebug("worker:%s, queue:%p is freed", pool->name, queue);
}
int32_t tFWorkerInit(SFWorkerPool *pool) { return tQWorkerInit((SQWorkerPool *)pool); }
void tFWorkerCleanup(SFWorkerPool *pool) { tQWorkerCleanup(pool); }
static void *tFWorkerThreadFp(SQWorker *worker) {
SQWorkerPool *pool = worker->pool;
FItem fp = NULL;
void * msg = NULL;
void * ahandle = NULL;
int32_t code = 0;
taosBlockSIGPIPE();
setThreadName(pool->name);
uDebug("worker:%s:%d is running", pool->name, worker->id);
while (1) {
code = taosReadQitemFromQsetByThread(pool->qset, (void **)&msg, &ahandle, &fp, worker->id);
if (code < 0) {
uDebug("worker:%s:%d qset:%p, got no message and exiting", pool->name, worker->id, pool->qset);
break;
} else if (code == 0) {
// uTrace("worker:%s:%d qset:%p, got no message and continue", pool->name, worker->id, pool->qset);
continue;
}
if (fp != NULL) {
(*fp)(ahandle, msg);
}
taosResetQsetThread(pool->qset, msg);
}
return NULL;
}
STaosQueue *tFWorkerAllocQueue(SQWorkerPool *pool, void *ahandle, FItem fp) {
return tWorkerAllocQueue(pool, ahandle, fp, (ThreadFp)tFWorkerThreadFp);
}
void tFWorkerFreeQueue(SFWorkerPool *pool, STaosQueue *queue) { tQWorkerFreeQueue(pool, queue); }
int32_t tWWorkerInit(SWWorkerPool *pool) {
pool->nextId = 0;
pool->workers = calloc(sizeof(SWWorker), pool->max);
if (pool->workers == NULL) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
if (pthread_mutex_init(&pool->mutex, NULL) != 0) {
terrno = TSDB_CODE_OUT_OF_MEMORY;
return -1;
}
for (int32_t i = 0; i < pool->max; ++i) {
SWWorker *worker = pool->workers + i;
worker->id = i;
worker->qall = NULL;
worker->qset = NULL;
worker->pool = pool;
}
uInfo("worker:%s is initialized, max:%d", pool->name, pool->max);
return 0;
}
void tWWorkerCleanup(SWWorkerPool *pool) {
for (int32_t i = 0; i < pool->max; ++i) {
SWWorker *worker = pool->workers + i;
if (taosCheckPthreadValid(worker->thread)) {
if (worker->qset) {
taosQsetThreadResume(worker->qset);
}
}
}
for (int32_t i = 0; i < pool->max; ++i) {
SWWorker *worker = pool->workers + i;
if (taosCheckPthreadValid(worker->thread)) {
pthread_join(worker->thread, NULL);
taosFreeQall(worker->qall);
taosCloseQset(worker->qset);
}
}
tfree(pool->workers);
pthread_mutex_destroy(&pool->mutex);
uInfo("worker:%s is closed", pool->name);
}
static void *tWWorkerThreadFp(SWWorker *worker) {
SWWorkerPool *pool = worker->pool;
FItems fp = NULL;
void * msg = NULL;
void * ahandle = NULL;
int32_t numOfMsgs = 0;
int32_t qtype = 0;
taosBlockSIGPIPE();
setThreadName(pool->name);
uDebug("worker:%s:%d is running", pool->name, worker->id);
while (1) {
numOfMsgs = taosReadAllQitemsFromQset(worker->qset, worker->qall, &ahandle, &fp);
if (numOfMsgs == 0) {
uDebug("worker:%s:%d qset:%p, got no message and exiting", pool->name, worker->id, worker->qset);
break;
}
if (fp != NULL) {
(*fp)(ahandle, worker->qall, numOfMsgs);
}
}
return NULL;
}
STaosQueue *tWWorkerAllocQueue(SWWorkerPool *pool, void *ahandle, FItems fp) {
pthread_mutex_lock(&pool->mutex);
SWWorker *worker = pool->workers + pool->nextId;
STaosQueue *queue = taosOpenQueue();
if (queue == NULL) {
pthread_mutex_unlock(&pool->mutex);
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
taosSetQueueFp(queue, NULL, fp);
if (worker->qset == NULL) {
worker->qset = taosOpenQset();
if (worker->qset == NULL) {
taosCloseQueue(queue);
pthread_mutex_unlock(&pool->mutex);
return NULL;
}
taosAddIntoQset(worker->qset, queue, ahandle);
worker->qall = taosAllocateQall();
if (worker->qall == NULL) {
taosCloseQset(worker->qset);
taosCloseQueue(queue);
pthread_mutex_unlock(&pool->mutex);
terrno = TSDB_CODE_OUT_OF_MEMORY;
return NULL;
}
pthread_attr_t thAttr;
pthread_attr_init(&thAttr);
pthread_attr_setdetachstate(&thAttr, PTHREAD_CREATE_JOINABLE);
if (pthread_create(&worker->thread, &thAttr, (ThreadFp)tWWorkerThreadFp, worker) != 0) {
uError("worker:%s:%d failed to create thread to process since %s", pool->name, worker->id, strerror(errno));
taosFreeQall(worker->qall);
taosCloseQset(worker->qset);
taosCloseQueue(queue);
terrno = TSDB_CODE_OUT_OF_MEMORY;
queue = NULL;
} else {
uDebug("worker:%s:%d is launched, max:%d", pool->name, worker->id, pool->max);
pool->nextId = (pool->nextId + 1) % pool->max;
}
pthread_attr_destroy(&thAttr);
} else {
taosAddIntoQset(worker->qset, queue, ahandle);
pool->nextId = (pool->nextId + 1) % pool->max;
}
pthread_mutex_unlock(&pool->mutex);
uDebug("worker:%s, queue:%p is allocated, ahandle:%p", pool->name, queue, ahandle);
return queue;
}
void tWWorkerFreeQueue(SWWorkerPool *pool, STaosQueue *queue) {
taosCloseQueue(queue);
uDebug("worker:%s, queue:%p is freed", pool->name, queue);
}