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made logging config options from zenserver available in zen CLI
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This PR brings over some changes made to avoid performing setup for otel instrumentation if we are not sending otel information anywhere anyway.
It also adds the ability to configure an OTLP endpoint on the command line using `--otlp-endpoint=<URI>`.
Bear in mind that OTLP support is still not officially supported so this should not be used in production at this stage.
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* Eliminate spurious `FlushFileBuffers` calls on Windows by tracking writes
* Make cache log file creation optional
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- adds `zentelemetry` project which houses new functionality for serializing logs and traces in OpenTelemetry Protocol format (OTLP)
- moved existing stats functionality from `zencore` to `zentelemetry`
- adds `TRefCounted<T>` for vtable-less refcounting
- adds `MemoryArena` class which allows for linear allocation of memory from chunks
- adds `protozero` which is used to encode OTLP protobuf messages
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this breaks out the configuration logic to allow multiple applications to share common configuration and initialization logic whilst customizing chosen aspects of the process
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* move all storage-related services into storage tree
* move config into config/
* also move admin service into storage since it mostly has storage related functionality
* header consolidation
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- Improvement: Changed zenserver `--quiet` option to suppress INFO level messages and below to surface startup and runtime errors
- Feature: Added `--noconsole` option that suppresses all output to standard out, this works as the `--quiet` option used to work
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* added FLLMTag which can be used to register memory tags outside of core
* changed `UE_MEMSCOPE` -> `ZEN_MEMSCOPE` for consistency
* instrumented some subsystems with dynamic tags
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This change introduces support for tracing of memory allocation activity. The code is ported from UE5, and Unreal Insights can be used to analyze the output. This is currently only fully supported on Windows, but will be extended to Mac/Linux in the near future.
To activate full memory tracking, pass `--trace=memory` on the commandline alongside `--tracehost=<ip>` or `-tracefile=<path>`. For more control over how much detail is traced you can instead pass some combination of `callstack`, `memtag`, `memalloc` instead. In practice, `--trace=memory` is an alias for `--trace=callstack,memtag,memalloc`). For convenience we also support `--trace=memory_light` which omits call stacks.
This change also introduces multiple memory allocators, which may be selected via command-line option `--malloc=<allocator>`:
* `mimalloc` - mimalloc (default, same as before)
* `rpmalloc` - rpmalloc is another high performance allocator for multithreaded applications which may be a better option than mimalloc (to be evaluated). Due to toolchain limitations this is currently only supported on Windows.
* `stomp` - an allocator intended to be used during development/debugging to help track down memory issues such as use-after-free or out-of-bounds access. Currently only supported on Windows.
* `ansi` - fallback to default system allocator
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* Don't encode filesystem path to UTF8 unless stored in compactbinary string
* Be consistent where we encode/decode paths to UTF8
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with these changes it is possible to configure loggers on the command line. For instance:
`xmake run zenserver --log-trace=http_requests,http`
will configure the system so that the `http_request` and `http` loggers are set to TRACE level
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this change aims to hide logging internals from client code, in order to make it easier to extend and take more control over the logging process in the future.
As a bonus side effect, the generated code is much tighter (net delta around 2.5% on the resulting executable which includes lots of thirdparty code) and should take less time to compile and link.
Client usage via macros is pretty much unchanged. The main exposure client code had to spdlog internals before was the use of custom loggers per subsystem, where it would be common to have `spdlog::logger` references to keep a reference to a logger within a class. This is now replaced by `zen::LoggerRef` which currently simply encapsulates an actual `spdlog::logger` instance, but this is intended to be an implementation detail which will change in the future.
The way the change works is that we now handle any formatting of log messages in the zencore logging subsystem instead of relying on `spdlog` to manage this. We use the `fmt` library to do the formatting which means the client usage is identical to using `spdlog`. The formatted message is then forwarded onto any sinks etc which are still implememted via `spdlog`.
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zenutil and zenserver both contain very similar logging setup code and this change aims to make them have most code in common.
* fullformatter/jsonformatter/RotatingFileSink are moved into dedicated header files in zenutil
* zenserver `InitializeLogging`/`ShutdownLogging` are renamed `InitializeServerLogging`/`InitializeServerLogging`
* these now call into the common zenutil `BeginInitializeLogging`/`FinishInitializeLogging` in addition to setting up server custom logging
* `std::filesystem::path` is now logged after stripping any `\\\\?\\` prefix for readability
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* New rotating file logger that keeps on running regardless of errors
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added --quiet option for zenserver to suppress default logging to stdout
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* handle errors in spdlog gracefully - try to report and avoid termination
* changelog
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may be used as audit trail to help analyse potential cache pollution/corruption
* also added common header with timestamp to all known log targets
* made `Oid::operator bool` explicit to avoid logging/text format mishaps
* made `HttpClient::operator bool` explicit
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* moved source directories into `/src`
* updated bundle.lua for new `src` path
* moved some docs, icon
* removed old test trees
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