mirror of
https://github.com/opencontainers/runc.git
synced 2026-07-11 06:03:57 +08:00
Kir Kolyshkin
dbb9fc03ae
Only some libcontainer packages can be built on non-linux platforms
(not that it make sense, but at least go build succeeds). Let's call
these "good" packages.
For all other packages (i.e. ones that fail to build with GOOS other
than linux), it does not make sense to have linux build tag (as they
are broken already, and thus are not and can not be used on anything
other than Linux).
Remove linux build tag for all non-"good" packages.
This was mostly done by the following script, with just a few manual
fixes on top.
function list_good_pkgs() {
for pkg in $(find . -type d -print); do
GOOS=freebsd go build $pkg 2>/dev/null \
&& GOOS=solaris go build $pkg 2>/dev/null \
&& echo $pkg
done | sed -e 's|^./||' | tr '\n' '|' | sed -e 's/|$//'
}
function remove_tag() {
sed -i -e '\|^// +build linux$|d' $1
go fmt $1
}
SKIP="^("$(list_good_pkgs)")"
for f in $(git ls-files . | grep .go$); do
if echo $f | grep -qE "$SKIP"; then
echo skip $f
continue
fi
echo proc $f
remove_tag $f
done
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
129 lines
2.7 KiB
Go
129 lines
2.7 KiB
Go
package libcontainer
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import (
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"errors"
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"os"
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"os/exec"
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"github.com/opencontainers/runc/libcontainer/system"
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)
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func newRestoredProcess(cmd *exec.Cmd, fds []string) (*restoredProcess, error) {
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var err error
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pid := cmd.Process.Pid
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stat, err := system.Stat(pid)
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if err != nil {
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return nil, err
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}
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return &restoredProcess{
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cmd: cmd,
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processStartTime: stat.StartTime,
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fds: fds,
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}, nil
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}
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type restoredProcess struct {
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cmd *exec.Cmd
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processStartTime uint64
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fds []string
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}
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func (p *restoredProcess) start() error {
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return errors.New("restored process cannot be started")
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}
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func (p *restoredProcess) pid() int {
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return p.cmd.Process.Pid
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}
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func (p *restoredProcess) terminate() error {
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err := p.cmd.Process.Kill()
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if _, werr := p.wait(); err == nil {
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err = werr
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}
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return err
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}
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func (p *restoredProcess) wait() (*os.ProcessState, error) {
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// TODO: how do we wait on the actual process?
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// maybe use --exec-cmd in criu
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err := p.cmd.Wait()
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if err != nil {
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var exitErr *exec.ExitError
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if !errors.As(err, &exitErr) {
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return nil, err
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}
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}
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st := p.cmd.ProcessState
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return st, nil
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}
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func (p *restoredProcess) startTime() (uint64, error) {
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return p.processStartTime, nil
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}
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func (p *restoredProcess) signal(s os.Signal) error {
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return p.cmd.Process.Signal(s)
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}
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func (p *restoredProcess) externalDescriptors() []string {
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return p.fds
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}
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func (p *restoredProcess) setExternalDescriptors(newFds []string) {
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p.fds = newFds
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}
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func (p *restoredProcess) forwardChildLogs() chan error {
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return nil
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}
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// nonChildProcess represents a process where the calling process is not
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// the parent process. This process is created when a factory loads a container from
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// a persisted state.
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type nonChildProcess struct {
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processPid int
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processStartTime uint64
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fds []string
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}
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func (p *nonChildProcess) start() error {
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return errors.New("restored process cannot be started")
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}
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func (p *nonChildProcess) pid() int {
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return p.processPid
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}
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func (p *nonChildProcess) terminate() error {
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return errors.New("restored process cannot be terminated")
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}
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func (p *nonChildProcess) wait() (*os.ProcessState, error) {
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return nil, errors.New("restored process cannot be waited on")
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}
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func (p *nonChildProcess) startTime() (uint64, error) {
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return p.processStartTime, nil
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}
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func (p *nonChildProcess) signal(s os.Signal) error {
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proc, err := os.FindProcess(p.processPid)
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if err != nil {
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return err
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}
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return proc.Signal(s)
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}
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func (p *nonChildProcess) externalDescriptors() []string {
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return p.fds
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}
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func (p *nonChildProcess) setExternalDescriptors(newFds []string) {
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p.fds = newFds
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}
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func (p *nonChildProcess) forwardChildLogs() chan error {
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return nil
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}
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