go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/resultdb/cli/terminate_windows.go (about)

     1  // Copyright 2021 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  //go:build windows
    16  // +build windows
    17  
    18  package cli
    19  
    20  import (
    21  	"context"
    22  	"os"
    23  	"os/exec"
    24  	"syscall"
    25  
    26  	"golang.org/x/sys/windows"
    27  
    28  	"go.chromium.org/luci/common/logging"
    29  )
    30  
    31  // setSysProcAttr sets flags which ensure the process starts in its own
    32  // process group so that we can send signal to.
    33  func setSysProcAttr(c *exec.Cmd) {
    34  	c.SysProcAttr = &syscall.SysProcAttr{
    35  		CreationFlags: syscall.CREATE_NEW_PROCESS_GROUP,
    36  	}
    37  }
    38  
    39  func terminate(ctx context.Context, p *os.Process) error {
    40  	logging.Infof(ctx, "Sending CTRL_BREAK_EVENT to the subprocess")
    41  	return windows.GenerateConsoleCtrlEvent(windows.CTRL_BREAK_EVENT, uint32(p.Pid))
    42  }