49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package shell
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import (
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"bytes"
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"os/exec"
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"time"
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)
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// Exec runs the executable exe with the given arguments, in the working
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// directory wd, with the custom environment flags.
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// If the process does not finish within timeout a errTimeout will be returned.
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func Exec(timeout time.Duration, exe, wd string, env []string, args ...string) ([]byte, error) {
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b := bytes.Buffer{}
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c := exec.Command(exe, args...)
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c.Dir = wd
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c.Env = env
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c.Stdout = &b
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c.Stderr = &b
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if err := c.Start(); err != nil {
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return nil, err
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}
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res := make(chan error)
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go func() { res <- c.Wait() }()
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select {
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case <-time.NewTimer(timeout).C:
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c.Process.Kill()
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return b.Bytes(), ErrTimeout{exe, timeout}
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case err := <-res:
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return b.Bytes(), err
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}
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}
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