* origin/topic/timw/clang-tidy:
Don't specify 0u for initial value of loops changed to size_t
Use .empty() instead of checking size against zero
Use properly-sized loop variables or convert to ranged-for (bugprone-too-small-loop-variable)
Merge changes one type over to ptrdiff_t
General changes:
* Add -D/--deterministic command line option as
convenience/alternative to -G/--load-seeds (i.e. no file needed, it just
uses zero-initialized random seeds). It also changes Broker data
stores over to using deterministic timing rather than real time.
* Add option to make Reporter abort on runtime scripting errors
The Zeek code base has very inconsistent #includes. Many sources
included a few headers, and those headers included other headers, and
in the end, nearly everything is included everywhere, so missing
#includes were never noticed. Another side effect was a lot of header
bloat which slows down the build.
First step to fix it: in each source file, its own header should be
included first to verify that each header's includes are correct, and
none is missing.
After adding the missing #includes, I replaced lots of #includes
inside headers with class forward declarations. In most headers,
object pointers are never referenced, so declaring the function
prototypes with forward-declared classes is just fine.
This patch speeds up the build by 19%, because each compilation unit
gets smaller. Here are the "time" numbers for a fresh build (with a
warm page cache but without ccache):
Before this patch:
3144.94user 161.63system 3:02.87elapsed 1808%CPU (0avgtext+0avgdata 2168608maxresident)k
760inputs+12008400outputs (1511major+57747204minor)pagefaults 0swaps
After this patch:
2565.17user 141.83system 2:25.46elapsed 1860%CPU (0avgtext+0avgdata 1489076maxresident)k
72576inputs+9130920outputs (1667major+49400430minor)pagefaults 0swaps
