mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-21 09:10:10 +00:00
ac5cac188d
This patch adds the --siganl-fd FD option to specify a file descriptor.
CRIU will write '\0' to this descriptor and close it after passing
a preparation stage.
It is alternative way to demonizing a criu process after a preparation
stage. It's imposiable to get exit code, if a process has daemonized.
The introduced way allows to wait a preparation stage and to get an exit
code. It can be easy used from shell and other script languages.
v3: fix a help message
v4: Here is a sequence of actions how it can be used:
* open a pipe
* run a service with the pipe[1] as status_fd
* read(pipe[0]) to wait a moment when the service will be ready to
accept connections
* do a work which requires the service
* wait the service process to gets its exit status to be sure that
everything okey
travis-ci: success for crtools: close a signal descriptor after passing a preparation stage (rev6)
Cc: Mike Rapoport <mike.rapoport@gmail.com>
Cc: Kir Kolyshkin <kir@openvz.org>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
|
||
|---|---|---|
| .. | ||
| .gitattributes | ||
| .gitignore | ||
| asciidoc.conf | ||
| crit.txt | ||
| criu.txt | ||
| custom.xsl | ||
| HOWTO.cross-compile | ||
| Makefile | ||