github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/configuration/config_manager/signal.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package configmanager
    21  
    22  import (
    23  	"fmt"
    24  	"os"
    25  )
    26  
    27  type PID int32
    28  
    29  const (
    30  	InvalidPID PID = 0
    31  )
    32  
    33  func sendSignal(pid PID, sig os.Signal) error {
    34  	process, err := os.FindProcess(int(pid))
    35  	if err != nil {
    36  		return err
    37  	}
    38  
    39  	logger.Info(fmt.Sprintf("send signal:%s to process[%d]", sig.String(), pid))
    40  	err = process.Signal(sig)
    41  	if err != nil {
    42  		return err
    43  	}
    44  
    45  	return nil
    46  }