The old CoreSuspender requires processing from Core::Update to allow
commands execute. But that causes issues if Core::Shutdown wants
quarentee cleanup order with std:🧵:join. Fixing shutdown ordering
adds too many branches to already fairly complex code.
I decided to try to refactor CoreSuspender to use simpler locking
locking using a std::recusive_muted as primary synchronization
primitive.
To help control when Core::Update unlocks the primary mutex there is
std::contition_variable_any and std::atomic<size_t> queue lenght
counter.
The last state variable is std::atomic<std:🧵:id> that is used to
keep track of owner thread for Core::IsSuspended query.
This should be merged only just after a release to make sure that it
gets maximum testing in develop branch before next release.
Fixes#1066
Console::lineedit can return -1 to indicate input error and -2 to
indicate the program is closing. But most users don't check possible
unusual return values which can lead to exit hang.
I noticed that multibyte characters can mess up the console state
variables. I decided to add a minimal multibyte support to make sure the
input only collects complete valid multibyte characters in case user
enters them to console.
This change assumes that UTF-32 has one to one mapping between printed
characters and char32 indexes. But I remember reading there is a few
rare corner cases with accents where character might require multiple
4byte characters too. But this patch at least changes correct handling
from about 100 characters to 99% of unicode characters.
There is a minor chance that console or init thread would access already
freed memory when core is shutting down and cleaning up state. To avoid
any danger of having random bugs caused by the potential data race I
decided to make sure the shutdown code waits for the thread to exit
first.
Windows change is completely untested. It is purely based on msdn
documentation.
I noticed that tthread is missing some c++11 features that make thread
handling code a bit easier. To be able to use those features I decided
to convert Core.cpp to use equivalent standard classes.
This patch has no functional changes.
G++ generates structure debug symbols for a few df namespace classes to
generated stub source files. I decided to test how much symbols from
those files would increase binary size. When the result was about double
size I decided to add cmake configuration option to let user easily
select if they prefer complete symbols or reduced size.
The map_block->designation.{dig,smooth} are reset to zeros when a job
posting is created for the designation. The job is then used to override
the designation state in the map_block. To make the new designation set
propogate to jobs the job structure would require updating. The update
would be possible a complex operation. The simple alternative is to
remove the job and let df create a new job in the next tick.
Fixes#1229
gcc supports type checks for printf parameters which can catch some hard
to reproduce bugs. Possible bugs happen when the parameter value is
intepreted differently to the variable value.
Example warnings follow
../library/LuaWrapper.cpp:1011:86: warning: format ‘%llu’ expects argument
of type ‘long long unsigned int’, but argument 3 has type ‘uint64_t
{aka long unsigned int}’ [-Wformat=]
../plugins/follow.cpp:159:35: warning: format not a string literal and no
format arguments [-Wformat-security]
vsnprintf man page claims:
"If an output error is encountered, a negative value is returned."
That means we has to call vsnprintf twice at most to have whole output
written to a string. But in case of error we return an empty string.
The code also optimizes an expected common case of outputting single
line with a small stack allocated buffer. If the stack buffer is too
small then it uses std::string::resize to allocate exactly enough memory
and writes directly to std::string.
Second call could use vsprintf because memory is known to be large
enough. But I think that difference isn't detectable outside micro
benchmarks.
Changes include
* table.getn(obj) -> #obj
* Making sure string.rep gets an integer parameter
* Optimized profiling hooks (call profiler cost from factor 40 to 10)
* Specialized parameter name lookup code for c++ __index metamod calls
* Collect source lines in time sampling variant
* Simplified prevent to always filter all children
Pepperfish Profiler can produce time sampled profiles and call entry
exit profiles. Code is verbatim copy from the lua wiki [1]. This commit
won't work alone but it exists to give author credit correctly to
Daniel.
[1] http://lua-users.org/wiki/PepperfishProfiler
Authors:
Daniel Silverstone <dsilvers@pepperfish.net>
Tom Spilman <tom@sickheadgames.com>
Ben Wilhelm <zorba-pepperfish@pavlovian.net>
Pauli
lethosor
PatrikLundell
Daniel Silverstone
grubsteak
Lethosor
Dan Amlund