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https://github.com/ipfs/kubo.git
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90b73d2ad2
* refactor: remove goprocess The `goprocess` package is no longer needed. It can be replaces by modern `context` and `context.AfterFunc`. * mod tidy * log unmount errors on shutdown * Do not log non-mounted errors on shutdown * Use WaitGroup associated with IPFS node to wait for services to whutdown * Prefer explicit Close to context.ArterFunc * Do not use node-level WaitGroup * Unmount for non-supported platforms * fix return values * test: daemon shuts down gracefully make sure ongoing operations dont block shutdown * test(cli): add TestFUSE * test: smarter RequiresFUSE opportunistically run FUSE tests if env has fusermount and TEST_FUSE was not explicitly set * docs: changelog --------- Co-authored-by: gammazero <gammazero@users.noreply.github.com> Co-authored-by: Marcin Rataj <lidel@lidel.org>
103 lines
2.1 KiB
Go
103 lines
2.1 KiB
Go
// package mount provides a simple abstraction around a mount point
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package mount
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import (
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"fmt"
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"io"
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"os/exec"
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"runtime"
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"time"
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logging "github.com/ipfs/go-log/v2"
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)
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var log = logging.Logger("mount")
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var MountTimeout = time.Second * 5
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// Mount represents a filesystem mount.
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type Mount interface {
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// MountPoint is the path at which this mount is mounted
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MountPoint() string
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// Unmounts the mount
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Unmount() error
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// Checks if the mount is still active.
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IsActive() bool
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}
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// ForceUnmount attempts to forcibly unmount a given mount.
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// It does so by calling diskutil or fusermount directly.
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func ForceUnmount(m Mount) error {
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point := m.MountPoint()
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log.Warnf("Force-Unmounting %s...", point)
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cmd, err := UnmountCmd(point)
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if err != nil {
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return err
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}
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errc := make(chan error, 1)
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go func() {
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defer close(errc)
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// try vanilla unmount first.
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if err := exec.Command("umount", point).Run(); err == nil {
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return
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}
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// retry to unmount with the fallback cmd
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errc <- cmd.Run()
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}()
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select {
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case <-time.After(7 * time.Second):
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return fmt.Errorf("umount timeout")
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case err := <-errc:
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return err
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}
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}
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// UnmountCmd creates an exec.Cmd that is GOOS-specific
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// for unmount a FUSE mount.
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func UnmountCmd(point string) (*exec.Cmd, error) {
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switch runtime.GOOS {
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case "darwin":
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return exec.Command("diskutil", "umount", "force", point), nil
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case "linux":
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return exec.Command("fusermount", "-u", point), nil
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default:
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return nil, fmt.Errorf("unmount: unimplemented")
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}
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}
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// ForceUnmountManyTimes attempts to forcibly unmount a given mount,
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// many times. It does so by calling diskutil or fusermount directly.
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// Attempts a given number of times.
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func ForceUnmountManyTimes(m Mount, attempts int) error {
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var err error
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for i := 0; i < attempts; i++ {
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err = ForceUnmount(m)
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if err == nil {
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return err
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}
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<-time.After(time.Millisecond * 500)
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}
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return fmt.Errorf("unmount %s failed after 10 seconds of trying", m.MountPoint())
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}
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type closer struct {
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M Mount
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}
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func (c *closer) Close() error {
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log.Warn(" (c *closer) Close(),", c.M.MountPoint())
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return c.M.Unmount()
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}
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func Closer(m Mount) io.Closer {
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return &closer{m}
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}
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