Crashes when redis is disabled

[mpoquet]

Description

When Batsim is run without Redis, some problems might occur depending on batsim inputs...

• I once got this problem: the server got out of the MSG_task_receive function with a corrupted stack, leading to a segmentation fault quickly after it...
• Got another problems...

Should be investigated in detail.

Reproducibiilty

Batsim commit: f2b05bb3d0f0f6014862475b289276531150e05d Batsched commit: a6f9b0df75dd9e1e3be39a95bfc578640801fc83

cd ${BATSCHED_DIR}
${BATSIM_DIR}/tools/experiments/execute_instances.py test/no_redis.yaml

Expected output:

[...]
2017-04-11 19:14:25,057 WARNING: 8 instances have been skipped
[...]

All instances with redis disabled crash.

[mpoquet]

It seems that commit 6283f88d7a29 fixed it. boost::locale probably did some buffer overflow =/