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init.go
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init.go
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/*
Nging is a toolbox for webmasters
Copyright (C) 2018-present Wenhui Shen <swh@admpub.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package cron
import (
"context"
"os/exec"
"time"
"github.com/admpub/log"
"github.com/admpub/nging/v3/application/dbschema"
)
var historyJobsRunning bool
func InitJobs(ctx context.Context) error {
m := new(dbschema.NgingTask)
limit := 1000
cnt, err := m.ListByOffset(nil, nil, 0, limit, "disabled", `N`)
if err != nil {
return err
}
total := int(cnt())
for offset := 0; offset < total; offset += limit {
if offset > 0 {
_, err := m.ListByOffset(nil, nil, offset, limit, "disabled", `N`)
if err != nil {
return err
}
}
for _, task := range m.Objects() {
job, err := NewJobFromTask(ctx, task)
if err != nil {
log.Error("InitJobs: ", err.Error())
continue
}
if AddJob(task.CronSpec, job) {
log.Infof("InitJobs: 添加任务[%d]", task.Id)
continue
}
}
}
historyJobsRunning = true
return nil
}
func HistoryJobsRunning() bool {
return historyJobsRunning
}
func runCmdWithTimeout(cmd *exec.Cmd, timeout time.Duration, ctx context.Context) (error, bool) {
if ctx == nil {
ctx = context.Background()
}
done := make(chan error)
go func() {
done <- cmd.Wait()
close(done)
}()
var err error
kill := func() {
go func() {
<-done // 读出上面的goroutine数据,避免阻塞导致无法退出
}()
if err = cmd.Process.Kill(); err != nil {
log.Errorf("进程[%d]无法关闭, 错误信息: %s", cmd.Process.Pid, err)
}
}
t := time.NewTimer(timeout)
defer t.Stop()
select {
case <-t.C:
log.Warnf("任务执行时间超过%d秒,强制关闭进程: %d", int(timeout/time.Second), cmd.Process.Pid)
kill()
return err, true
case <-ctx.Done():
kill()
return err, false
case err = <-done:
return err, false
}
}