tree 443289dda30714a8bb9662218c684f98f6e9c4cc
parent cb267c8fc0cdcac68191f4b9dc32ef171f7901e0
author George Liu <liuxiwei@inspur.com> 1641376485 +0800
committer George Liu <liuxiwei@inspur.com> 1642577939 +0800

Fix loading json file causing coredump

If the json file is damaged, when the process is running and
deserializing, a coredump will occur and a cereal::RapidJSONException
will be thrown.

Error message:
```
terminate called after throwing an instance of'cereal::RapidJSONException'
what(): rapidjson internal assertion failure: IsObject()
```

Add try-catch to catch the exception, and when the exception occurs,
we need to re-serialize the json file and record the log.

Tested: Use broken json file and restart the process

hosphor-srvcfg-manager[753]: Failed to load json file, need to rewrite,
ERROR = rapidjson internal assertion failure: IsObject(),
file path = /etc/srvcfg-mgr.json

Also, we can seen a bad json file in `/tmp`, like this:
/tmp/srvcfg-mgr.json.bad

Signed-off-by: George Liu <liuxiwei@inspur.com>
Change-Id: I996e9e32f87c25d584a3b5912334d1a137b55b6c