Difference between revisions of "Stages of restoring"

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| <code>CR_STATE_RESTORE_PGID</code> || Restore group IDs. Group leaders should exist in this moment and all helpers should be alive
 
| <code>CR_STATE_RESTORE_PGID</code> || Restore group IDs. Group leaders should exist in this moment and all helpers should be alive
 
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| <code>CR_STATE_RESTORE</code> || Wait helpers and restore a most part of resources. If anyone segfauls, its parent gets SIGCHLD and notify criu about that
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| <code>CR_STATE_RESTORE</code> || Wait helpers and restore a most part of resources. If anyone segfauls, its parent gets <code>SIGCHLD</code> and notify criu about that
 
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| <code>CR_STATE_RESTORE_SIGCHLD</code> || Restore <code>SIGCHLD</code> handlers
 
| <code>CR_STATE_RESTORE_SIGCHLD</code> || Restore <code>SIGCHLD</code> handlers

Revision as of 17:00, 30 April 2013

A process of restoring has a few global synchronization points:

CR_STATE_FORKING Create tasks and restore group leaders
CR_STATE_RESTORE_PGID Restore group IDs. Group leaders should exist in this moment and all helpers should be alive
CR_STATE_RESTORE Wait helpers and restore a most part of resources. If anyone segfauls, its parent gets SIGCHLD and notify criu about that
CR_STATE_RESTORE_SIGCHLD Restore SIGCHLD handlers
CR_STATE_COMPLETE All handlers were restored, origin processes can be resumed.