Github user jpeach commented on the issue:
https://github.com/apache/trafficserver/pull/815
These are globals, so I don't think that thread local storage makes sense
here.
There are 2 reasonable approaches to this. The most straight-forward is to
use static initialization (which is guaranteed to be thread-safe by the
[language](http://en.cppreference.com/w/cpp/language/storage_duration)).
Alternatively, we could use ``pthread_once`` directly.
For example, using the first alternative:
```C
const char *
TSFooDirGet()
{
static const char * path = ReadFooDirPath();
return path;
}
```
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