process

func AddExternalFilesForDump ¶

func AddExternalFilesForDump(next types.Dump) types.Dump

Detects any open files that are in an external namespace and sets appropriate options for CRIU. Also detects any TTY files and sets options for CRIU.

func CloseCommonFilesForDump ¶

func CloseCommonFilesForDump(next types.Dump) types.Dump

Close common file descriptors b/w the parent and child process

func DetectIOUringForDump ¶

func DetectIOUringForDump(next types.Dump) types.Dump

Detects if the process is using IOUring and sets appropriate options for CRIU XXX: Currently IO uring C/R is not supported by CRIU, so we return an error. ref: https://criu.org/Google_Summer_of_Code_Ideas#IOUring_support

func DetectShellJobForDump ¶

func DetectShellJobForDump(next types.Dump) types.Dump

Detect and sets shell job option for CRIU

func DetectShellJobForRestore ¶

func DetectShellJobForRestore(next types.Restore) types.Restore

Detect and sets shell job option for CRIU

func FillProcessStateForDump ¶

func FillProcessStateForDump(next types.Dump) types.Dump

Fills process state in the dump response. Requires at least the PID to be present in the DumpResp.State Also saves the state to a file in the dump directory, post dump.

func InheritFilesForRestore ¶

func InheritFilesForRestore(next types.Restore) types.Restore

If req.Attachable is set, inherit fd is set to 0, 1, 2. assuming CRIU will be spawned with these set to appropriate files later on. If just req.Log is set, inherit fd is set only for 1, 2. stdin is not inherited. If these options are not set, it is assumed that these files still exist and the restore will just fail if they don't.

If a file is a TTY, restore will fail because there is no TTY to inherit.

If there were any external (namespace) files during dump, they are also added to be inherited. Note that this would still fail if the files don't exist.

func ReloadProcessStateForRestore ¶

func ReloadProcessStateForRestore(next types.Restore) types.Restore

Reload process state from the dump dir in the restore response

func SetPIDForDump ¶

func SetPIDForDump(next types.Dump) types.Dump

Sets the PID from the request to the process state if not already set before.