[CRIU] [PATCH 29/32] tools: cpt2 -- Add writing of per-task images

[Cyrill Gorcunov]

Per-task images are dump files associated with every task checkpointed.
While patch may look somehow big it does rather trivial things.

 - we provide a set of "stub" routines which do nothing but form
   output files which are to be filled with real data latter:

    write_task_utsns, write_task_ipc, write_task_flocks,
    write_task_netdev, write_task_ifaddr, write_task_route,
    write_task_itimers

 - in turn the following routines do a real conversion

     write_task_core, write_task_creds, write_task_mountpoints

   as names implied they convert CoreEntry, CredsEntry, MntEntry

Note we don't support threader applications yet, and write_task_kids
is subject to change (some values are not well chosen ones but taken
to work with tests I pass).

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 tools/cpt2/src/convert.c      |   6 +
 tools/cpt2/src/include/task.h |   1 +
 tools/cpt2/src/task.c         | 724 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 731 insertions(+)

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