forked from Telodendria/Telodendria
Add job scheduler.
This will be used for expiring sessions and tokens, among other things that need to happen periodically.
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3 changed files with 295 additions and 0 deletions
224
src/Cron.c
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224
src/Cron.c
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/*
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* Copyright (C) 2022 Jordan Bancino <@jordan:bancino.net>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <Cron.h>
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#include <Array.h>
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#include <Memory.h>
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#include <Util.h>
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#include <pthread.h>
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struct Cron
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{
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unsigned long tick;
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Array *jobs;
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pthread_mutex_t lock;
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volatile unsigned int stop:1;
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pthread_t thread;
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};
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typedef struct Job
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{
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unsigned long interval;
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unsigned long lastExec;
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void (*func) (void *);
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void *args;
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} Job;
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static Job *
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JobCreate(long interval, void (*func) (void *), void *args)
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{
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Job *job;
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if (!func)
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{
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return NULL;
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}
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job = Malloc(sizeof(Job));
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if (!job)
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{
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return NULL;
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}
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job->interval = interval;
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job->lastExec = 0;
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job->func = func;
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job->args = args;
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return job;
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}
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static void *
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CronThread(void *args)
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{
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Cron *cron = args;
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while (!cron->stop)
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{
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size_t i;
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unsigned long ts = UtilServerTs();
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pthread_mutex_lock(&cron->lock);
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for (i = 0; i < ArraySize(cron->jobs); i++)
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{
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Job *job = ArrayGet(cron->jobs, i);
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if (ts - job->lastExec > job->interval)
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{
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job->func(job->args);
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job->lastExec = ts;
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}
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if (!job->interval)
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{
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ArrayDelete(cron->jobs, i);
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Free(job);
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}
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}
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pthread_mutex_unlock(&cron->lock);
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UtilSleepMillis(cron->tick - (UtilServerTs() - ts));
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}
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return NULL;
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}
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Cron *
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CronCreate(unsigned long tick)
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{
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Cron *cron = Malloc(sizeof(Cron));
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if (!cron)
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{
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return NULL;
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}
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cron->jobs = ArrayCreate();
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if (!cron->jobs)
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{
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Free(cron);
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return NULL;
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}
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cron->tick = tick;
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pthread_mutex_init(&cron->lock, NULL);
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return cron;
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}
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void
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CronOnce(Cron * cron, void (*func) (void *), void *args)
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{
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Job *job;
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if (!cron || !func)
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{
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return;
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}
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job = JobCreate(0, func, args);
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if (!job)
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{
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return;
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}
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pthread_mutex_lock(&cron->lock);
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ArrayAdd(cron->jobs, job);
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pthread_mutex_unlock(&cron->lock);
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}
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void
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CronEvery(Cron * cron, unsigned long interval, void (*func) (void *), void *args)
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{
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Job *job;
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if (!cron || !func)
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{
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return;
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}
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job = JobCreate(interval, func, args);
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if (!job)
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{
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return;
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}
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pthread_mutex_lock(&cron->lock);
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ArrayAdd(cron->jobs, job);
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pthread_mutex_unlock(&cron->lock);
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}
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void
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CronStart(Cron * cron)
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{
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if (!cron || !cron->stop)
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{
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return;
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}
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cron->stop = 0;
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pthread_create(&cron->thread, NULL, CronThread, cron);
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}
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void
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CronStop(Cron * cron)
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{
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if (!cron || cron->stop)
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{
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return;
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}
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cron->stop = 1;
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pthread_join(cron->thread, NULL);
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}
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void
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CronFree(Cron * cron)
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{
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size_t i;
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if (!cron)
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{
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return;
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}
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CronStop(cron);
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pthread_mutex_lock(&cron->lock);
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for (i = 0; i < ArraySize(cron->jobs); i++)
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{
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Free(ArrayGet(cron->jobs, i));
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}
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ArrayFree(cron->jobs);
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pthread_mutex_unlock(&cron->lock);
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pthread_mutex_destroy(&cron->lock);
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Free(cron);
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}
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@ -40,6 +40,7 @@
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#include <HttpServer.h>
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#include <Matrix.h>
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#include <Db.h>
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#include <Cron.h>
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static void
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TelodendriaMemoryHook(MemoryAction a, MemoryInfo * i, void *args)
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struct sigaction sigAction;
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MatrixHttpHandlerArgs matrixArgs;
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Cron *cron = NULL;
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memset(&matrixArgs, 0, sizeof(matrixArgs));
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goto finish;
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}
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cron = CronCreate(60 * 1000); /* 1-minute tick */
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if (!cron)
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{
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Log(lc, LOG_ERR, "Unable to set up job scheduler.");
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exit = EXIT_FAILURE;
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goto finish;
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}
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Log(lc, LOG_DEBUG, "Registering jobs...");
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/* TODO: Register jobs here */
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Log(lc, LOG_NOTICE, "Starting job scheduler...");
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CronStart(cron);
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Log(lc, LOG_NOTICE, "Starting server...");
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if (!HttpServerStart(httpServer))
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Log(lc, LOG_DEBUG, "Freed HTTP Server.");
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}
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if (cron)
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{
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CronStop(cron);
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CronFree(cron);
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Log(lc, LOG_DEBUG, "Stopped and freed job scheduler.");
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}
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/*
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* If we're not logging to standard output, then we can close it. Otherwise,
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* if we are logging to stdout, LogConfigFree() will close it for us.
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47
src/include/Cron.h
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47
src/include/Cron.h
Normal file
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@ -0,0 +1,47 @@
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/*
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* Copyright (C) 2022 Jordan Bancino <@jordan:bancino.net>
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef TELODENDRIA_CRON_H
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#define TELODENDRIA_CRON_H
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typedef struct Cron Cron;
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extern Cron *
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CronCreate(unsigned long);
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extern void
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CronOnce(Cron *, void (*) (void *), void *);
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extern void
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CronEvery(Cron *, unsigned long, void (*) (void *), void *);
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extern void
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CronStart(Cron *);
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extern void
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CronStop(Cron *);
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extern void
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CronFree(Cron *);
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#endif /* TELODENDRIA_CRON_H */
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