adaptive_mutex now uses Boost.Atomic on all platforms that support
lock-free atomics native waiting/notifying operations for unsigned int
and pthreads on the other platforms. Windows always uses Boost.Atomic.
The new implementation blocks the thread after a number of attempts
to acquire the lock with spinning backoff. This should reduce CPU load
if for some reason the thread that owns the lock is holding it for a
long time (which typically should not happen, since adaptive_mutex is
currently only used in threadsafe_queue, which doesn't hold the lock
for too long, unless the holder gets preempted).
The change may be significant on POSIX systems, which previously always
used pthreads, and performance characteristics of pthread_mutex_t could
have been different from our Boost.Atomic-based implementation.
If native atomic int32 is not supported, Boost.Log disables IPC utilities,
so make a similar check in tests Jamfile to disable the corresponding tests.
Only include capabilities.hpp to test whether native atomic int32
is supported.
Also added a dependency on Boost.Atomic, which may be needed in
modular builds.
We are only interested in whether a config flag is defined, the value
of the define is irrelevant. So instead of checking for a value of 1,
detect the flag with any value, if present.
* Make the library modular usable.
* Switch to library requirements instead of source. As source puts extra source in install targets.
* Clean up build dependencies.
* Remove external build references and avoid custom project loading.
* Use relative paths to declare config sub-projects.
* Add missing NO_LIB usage requirements.
* Add missing library ref.
* Add missing import-search for cconfig/predef checks.
* Add requires-b2 check to top-level build file.
* Update dependencies.
* Bump B2 require to 5.2
* Update copyright dates.
* Move inter-lib dependencies to a project variable and into the build targets.
* Remove custom symbolic project names for config subprojects. And use project root relative targets.
* Move private deps to the build project.
* Put back default boost locale link as locale build is now fixed.
* Set default address-model and architecture to avoid extra/custom detection logic. Put back missing check and config rules.
* Adjust doc build to avoid boost-root references.
* Fix ref to predef.jam location.
* Have B2 build use same deps as CML for per-target private/public.
* Add log dep to log_setup, as it's needed on some platforms.
* Add boost_log_with_support target to mirror CML.
* Fix platform specific winapi dependency spec.
If text_file_backend is set up to append to a previously written file, and
the actively written file name pattern does not include a file counter
placeholder but the target file name pattern does, we used to skip incrementing
the file counter in an attempt to generate the same file name as was last used,
so that we open the last used file for appending. While it did result in
reusing the last written file, since the counter was not incremented, the next
rotation would generate the last used target file name, which would result in
overwriting the last rotated file instead of adding a new file to the storage.
To mitigate this, only skip incrementing the counter if the file name pattern
for the actively written file actually has a counter placeholder. This way,
the counter will get incremented in the case described above, and on rotation
a new target file name will be generated.
Fixes https://github.com/boostorg/log/issues/245.
Presumably, windmc.exe from MinGW-w64 fails if the output directory
doesn't exist. So create it prior to running the tool.
Additionally, removed explicit markup of the tool outputs as generated
sources. This should be done automatically by add_custom_command.
Also, added the max CMake version to silence its warnings.
These specializations were deprecated in C++20, and libc++-19 now generates
deprecation warnings when using std::codecvt<char16_t> and
std::codecvt<char32_t> in C++20 and later modes.
address::from_string functions in Boost.ASIO were deprecated and removed.
Use make_address free functions as a replacement.
Fixes https://github.com/boostorg/log/issues/239.
This replaces boost::thread and most mutexes and condition variables with
std equivalents. It also adds support for std lock types to the strictest_lock
type trait.
This significantly, although not completely, reduces the dependency on
Boost.Thread.
Refs https://github.com/boostorg/log/issues/232.
The default behavior of windres.exe to read the output of the
preprocessor is using popen. However, the popen implementation may be
buggy on some non-English hosts, which would cause a compilation error
like this:
windres.exe: can't open file `page:': Invalid argument
Fix by adding '--use-temp-file' option and windres.exe will use a
temporary file to read instead of using opoen.
Signed-off-by: ik <hello_ik@outlook.com>
The intrinsic is supported since VS2010 SP1, which is below our minimum
supported MSVC version. The intrinsic is the proper way to detect
support for AVX register state by the OS instead of the undocumented
GetEnabledExtendedFeatures WinAPI function.
This makes these sections better exposed to an impatient reader, as
that information is useful for better understanding of the rest of
the docs.
Also extracted installation sections to a separate file.
Related to https://github.com/boostorg/log/issues/226.
