siyuan/kernel/model/process.go
2024-09-04 09:40:50 +08:00

141 lines
3.4 KiB
Go

// SiYuan - Refactor your thinking
// Copyright (c) 2020-present, b3log.org
//
// 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 model
import (
"os"
"os/signal"
"strconv"
"strings"
"syscall"
"time"
goPS "github.com/mitchellh/go-ps"
"github.com/siyuan-note/logging"
"github.com/siyuan-note/siyuan/kernel/util"
)
func HandleSignal() {
c := make(chan os.Signal)
signal.Notify(c, syscall.SIGINT, syscall.SIGQUIT, syscall.SIGTERM)
s := <-c
logging.LogInfof("received os signal [%s], exit kernel process now", s)
Close(false, true, 1)
}
var (
firstRunHookDesktopUIProcJob = true
)
func HookDesktopUIProcJob() {
if util.ContainerStd != util.Container || "dev" == util.Mode {
return
}
if firstRunHookDesktopUIProcJob {
// 等待启动结束再监控
time.Sleep(30 * time.Second)
firstRunHookDesktopUIProcJob = false
return
}
if 0 < util.CountSessions() {
// 如果存在活动的会话则说明 UI 进程还在运行
return
}
uiProcCount := getAttachedUIProcCount()
if 0 < uiProcCount {
return
}
logging.LogWarnf("no active UI proc, continue to check from attached ui processes after 15s")
time.Sleep(15 * time.Second)
uiProcCount = getAttachedUIProcCount()
if 0 < uiProcCount {
return
}
logging.LogWarnf("no active UI proc, continue to check from all processes after 15s")
time.Sleep(15 * time.Second)
uiProcCount = getUIProcCount()
if 0 < uiProcCount {
logging.LogInfof("active UI proc count [%d]", uiProcCount)
return
}
logging.LogWarnf("confirmed no active UI proc, exit kernel process now")
Close(false, true, 1)
}
var uiProcNames = []string{"siyuan", "electron"}
// getAttachedUIProcCount 获取已经附加的 UI 进程数。
func getAttachedUIProcCount() (ret int) {
util.UIProcessIDs.Range(func(uiProcIDArg, _ interface{}) bool {
uiProcID, err := strconv.Atoi(uiProcIDArg.(string))
if err != nil {
logging.LogErrorf("invalid UI proc ID [%s]: %s", uiProcIDArg, err)
return true
}
proc, err := goPS.FindProcess(uiProcID)
if err != nil {
logging.LogErrorf("find UI proc [%d] failed: %s", uiProcID, err)
return true
}
if nil == proc {
return true
}
procName := strings.ToLower(proc.Executable())
uiProcOk := false
for _, name := range uiProcNames {
if uiProcOk = strings.Contains(procName, name); uiProcOk {
break
}
}
if uiProcOk {
ret++
}
return true
})
return
}
// getUIProcCount 获取 UI 进程数。
func getUIProcCount() (ret int) {
pid := os.Getpid()
procs, _ := goPS.Processes()
for _, proc := range procs {
if proc.Pid() == pid {
continue
}
procName := strings.ToLower(proc.Executable())
uiProcOk := false
for _, name := range uiProcNames {
if uiProcOk = strings.Contains(procName, name); uiProcOk {
break
}
}
if uiProcOk {
ret++
}
}
return
}