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Inheriting FDs on restore
(edit)
Revision as of 12:19, 19 July 2020
92 bytes removed
,
12:19, 19 July 2020
→External TTYs
Line 140:
Line 140:
Here is an example of dumping and restoring an external TTY:
Here is an example of dumping and restoring an external TTY:
<pre>
<pre>
−
$
ipython
+
# setsid --ctty
ipython
In [1]: import os
In [1]: import os
In [2]: st = os.stat("/proc/self/fd/0")
In [2]: st = os.stat("/proc/self/fd/0")
−
In [3]: print "tty[%x:%x]" % (st.st_rdev, st.st_dev)
+
In [3]: print
(
"tty[%x:%x]" % (st.st_rdev, st.st_dev
)
)
−
tty
:
[
8800
:
d
]
+
tty[
8802
:
19
]
−
+
−
$ps -C sleep
+
#
criu dump
-t `pgrep ipython`
--external 'tty[
8802
:
19
]'
−
PID TTY TIME CMD
+
#
criu restore --inherit-fd 'fd[1]:tty[
8802
:
9
]'
−
4109 ? 00:00:00 sleep
−
−
$ ./
criu dump --external 'tty[
8800
:
d
]'
-D imgs -v4 -t 4109
−
$ ./
criu restore --inherit-fd 'fd[1]:tty[
8800
:
d
]'
-D imgs -v4
</pre>
</pre>
Radostin
332
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