Incomplete history API

[Julien ÉLIE]

Heiko Schlichting wrote in ​inn-workers:

At least the following looks incomplete to me (there is probably more):

• documentation: history(5) should mention that this is hisv6 only. It would be more consistent to name this manpage hisv6(5) but as the data are stored in a file named "history", renaming the manpage might be too confusing. History API is documentated in libinnhist(3).

• Some history related things are hard coded into INN avoiding History API: E.g., innd.c:

i = dbzneedfilecount();
if (!fdreserve(3 + i)) { /* TEMPORARYOPEN, history stats, INND_HISTORY and i */

• Creating a dbz-free history is difficult as makedbz and such things are called during expire without asking History API. All dbz related things should be moved into hisv6 source directory and should be started via History API or should check if "hismethod" is "hisv6" .

• "prunehistory" changes history as external program. It would much cleaner to define a "delhistory" command in ctlinnd analog to "addhistory" which already exists. BTW: I expect that using unehistory during expire is running might undo the pruning.