Minor issues using m-array.h and m-concurrent.h

[mario-tux]

Trying to write an ad-hoc benchmark for #39 I spotted few minor issues trying to get a thread-safe array container:

• there is a const-related warning, example:

ARRAY_DEF(key_list, string_t)
#define M_OPL_key_list_t() ARRAY_OPLIST(key_list, STRING_OPLIST)
CONCURRENT_DEF(key_list_ts, key_list_t)

• the method _size is not exposed in the concurrent version: I can't get the number of elements in such kind of array.

[P-p-H-d]

Both issues should be fixed in master.

[mario-tux]

Now I'm getting at runtime an assertion error on the CONCURRENT_DEF point: key_list_ts_read_lock: Assertion out->self == out' failed.`

[P-p-H-d]

Can I have the source of this error to investigate?

[mario-tux]

https://pastebin.com/46k1ukCm

[P-p-H-d]

You forget to init keys. You should add in main:

key_list_ts_init(keys);
....
key_list_ts_clear(keys);

[mario-tux]

Yes: stupid error. I didn't use such container on first runs because of other bug. On the other side it worker on some runs before but I was just lucky (maybe you added further controls on last commits).