| Commit message (Collapse) | Author | Age | Files | Lines |
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- **Eliminate `<regex>` usage** — Replaced `std::regex`-based URL parsing in `jupiterbuildstorage.cpp` with manual `string_view` parsing. Added `CXXOPTS_NO_REGEX` to disable regex in cxxopts. Includes comprehensive tests for the new URL parser.
- **Add missing HTTP response codes** — Added `102`, `103`, `203`, `207`, `208`, `226`, `306`, `421`, `425`, `451` to the enum and reason string lookup.
- **Add `ForceColor` support to zen CLI** — Plumbed the `ForceColor` logging option through to the zen client.
- **Add `.clangd` config** — Strips MSVC-specific flags clangd can't handle and suppresses noisy clang-tidy checks.
- **Generic `fmt::formatter` for `ToString`** — Concept-based formatter that auto-formats any type with a free `ToString()` function, removing the need for per-type specializations.
- **Fix OpenSSL dependency** — Changed `zenhorde` to use `openssl3` package on Linux/macOS.
- **Add `<cmath>` include** — Missing include in `hyperloglog.h`.
- **GCC compile fix** — Moved `static constinit` variable inside lambda in `logging.cpp`.
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CPR is no longer needed now that HttpClient has fully transitioned to raw libcurl. This removes the CPR library, its build integration, implementation files, and all conditional compilation guards, leaving curl as the sole HTTP client backend.
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Fixes incorrect .pdata section for ASM functions on Windows, early failure on invalid dictionarySize, and removes spurious libcxx dependency on Linux/Mac. Adds Linux ARM64 and Windows ARM64 libraries.
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- Upgrade mimalloc from v2.1.2 to v2.2.7. Note that mimalloc is no longer the default allocator so this only impacts users who somehow opt into mimalloc via `--malloc=mimalloc` or compile with different defaults
- Add all available mimalloc versions (1.6.7–3.2.8) to the package definition for testing
- Log the active memory allocator (with version where available) at server startup
- Annotate vendored rpmalloc with its source commit and version
## Notable changes in mimalloc 2.1.2 → 2.2.7
- **Memory release fix** (2.2.4): fix case where OS memory was not always fully released
- **Race condition fix** (2.2.6): fixed rare race condition and potential buffer overflow in debug statistics
- **Windows arm64 support** (2.1.9)
- **Guarded build** (2.1.9): new build mode that places OS guard pages behind objects to catch buffer overflows
- **THP awareness** (2.2.6): auto-detects transparent huge pages and adjusts purge size to avoid fragmentation
- **Faster TLS access on Windows** (2.2.6)
- **Improved calloc and aligned allocation performance** (2.2.6)
- **New diagnostic APIs** (2.2.2): `mi_options_print`, `mi_arenas_print`, `mi_stat_get` / `mi_stat_get_json`
- **macOS**: use `MADV_FREE_REUSABLE` for better memory behavior (2.2.4)
- **Build fixes**: Android, Xbox, musl, mingw, arm32, Debian 32-bit, non-BMI1 x64 systems
## Allocator logging
Added `FMalloc::GetName()` pure virtual so the server logs which allocator is active at startup:
```
zenserver - memory allocator: mimalloc 2.2.7
```
Allocator names include version where available:
- `mimalloc 2.2.7` (runtime version via `mi_version()`)
- `rpmalloc 1.5.0-dev.20250810` (ad-hoc version from vendored develop branch commit)
- `ansi`, `stomp` (no version info available)
## Test plan
- [x] Builds successfully on Windows (release)
- [x] Verify server startup log shows allocator name
- [x] Test with `--malloc=mimalloc` (default) and `--malloc=rpmalloc`
- [x] Run test suites to check for regressions
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- **RAII pipe handles for child process stdout/stderr capture**: `StdoutPipeHandles` is now a proper RAII type with automatic cleanup, move semantics, and partial close support. This makes it safe to use pipes for capturing child process output without risking handle/fd leaks.
- **Optional separate stderr pipe**: `CreateProcOptions` now accepts a `StderrPipe` field so callers can capture stdout and stderr independently. When null (default), stderr shares the stdout pipe as before.
- **LogStreamListener with pluggable handler**: The TCP log stream listener accepts connections from remote processes and delivers parsed log lines through a `LogStreamHandler` interface, set dynamically via `SetHandler()`. This allows any client to receive log messages without depending on a specific console implementation.
- **TcpLogStreamSink for zen::logging**: A logging sink that forwards log messages to a `LogStreamListener` over TCP, using the native `zen::logging::Sink` infrastructure with proper thread-safe synchronization.
- **Reliable child process exit codes on Linux**: `waitpid` result handling is fixed so `ProcessHandle::GetExitCode()` returns the real exit code. `ProcessHandle::Reset()` reaps zombies directly, replacing the global `IgnoreChildSignals()` which prevented exit code collection entirely. Also fixes a TOCTOU race in `ProcessHandle::Wait()` on Linux/Mac.
- **Pipe capture test suite**: Tests covering stdout/stderr capture via pipes (both shared and separate modes), RAII cleanup, move semantics, and exit code propagation using `zentest-appstub` as the child process.
- **Service command integration tests**: Shell-based integration tests for `zen service` covering the full lifecycle (install, status, start, stop, uninstall) on all three platforms — Linux (systemd), macOS (launchd), and Windows (SCM via PowerShell).
- **Test script reorganization**: Platform-specific test scripts moved from `scripts/test_scripts/` into `scripts/test_linux/`, `test_mac/`, and `test_windows/`.
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### Compute Batch Submission
- Consolidate duplicated action submission logic in `httpcomputeservice` into a single `HandleSubmitAction` supporting both single-action and batch (actions array) payloads
- Group actions by queue in `RemoteHttpRunner` and submit as batches with configurable chunk size, falling back to individual submission on failure
- Extract shared helpers: `MakeErrorResult`, `ValidateQueueForEnqueue`, `ActivateActionInQueue`, `RemoveActionFromActiveMaps`
### Retracted Action State
- Add `Retracted` state to `RunnerAction` for retry-free rescheduling — an explicit request to pull an action back and reschedule it on a different runner without incrementing `RetryCount`
- Implement idempotent `RetractAction()` on `RunnerAction` and `ComputeServiceSession`
- Add `POST jobs/{lsn}/retract` and `queues/{queueref}/jobs/{lsn}/retract` HTTP endpoints
- Add state machine documentation and per-state comments to `RunnerAction`
### Compute Race Fixes
- Fix race in `HandleActionUpdates` where actions enqueued between session abandon and scheduler tick were never abandoned, causing `GetActionResult` to return 202 indefinitely
- Fix queue `ActiveCount` race where `NotifyQueueActionComplete` was called after releasing `m_ResultsLock`, allowing callers to observe stale counters immediately after `GetActionResult` returned OK
### Logging Optimization and ANSI improvements
- Improve `AnsiColorStdoutSink` write efficiency — single write call, dirty-flag flush, `RwLock` instead of `std::mutex`
- Move ANSI color emission from sink into formatters via `Formatter::SetColorEnabled()`; remove `ColorRangeStart`/`End` from `LogMessage`
- Extract color helpers (`AnsiColorForLevel`, `StripAnsiSgrSequences`) into `helpers.h`
- Strip upstream ANSI SGR escapes in non-color output mode. This enables colour in log messages without polluting log files with ANSI control sequences
- Move `RotatingFileSink`, `JsonFormatter`, and `FullFormatter` from header-only to pimpl with `.cpp` files
### CLI / Exec Refactoring
- Extract `ExecSessionRunner` class from ~920-line `ExecUsingSession` into focused methods and a `ExecSessionConfig` struct
- Replace monolithic `ExecCommand` with subcommand-based architecture (`http`, `inproc`, `beacon`, `dump`, `buildlog`)
- Allow parent options to appear after subcommand name by parsing subcommand args permissively and forwarding unmatched tokens to the parent parser
### Testing Improvements
- Fix `--test-suite` filter being ignored due to accumulation with default wildcard filter
- Add test suite banners to test listener output
- Made `function.session.abandon_pending` test more robust
### Startup / Reliability Fixes
- Fix silent exit when a second zenserver instance detects a port conflict — use `ZEN_CONSOLE_*` for log calls that precede `InitializeLogging()`
- Fix two potential SIGSEGV paths during early startup: guard `sentry_options_new()` returning nullptr, and throw on `ZenServerState::Register()` returning nullptr instead of dereferencing
- Fail on unrecognized zenserver `--mode` instead of silently defaulting to store
### Other
- Show host details (hostname, platform, CPU count, memory) when discovering new compute workers
- Move frontend `html.zip` from source tree into build directory
- Add format specifications for Compact Binary and Compressed Buffer wire formats
- Add `WriteCompactBinaryObject` to zencore
- Extended `ConsoleTui` with additional functionality
- Add `--vscode` option to `xmake sln` for clangd / `compile_commands.json` support
- Disable compute/horde/nomad in release builds (not yet production-ready)
- Disable unintended `ASIO_HAS_IO_URING` enablement
- Fix crashpad patch missing leading whitespace
- Clean up code triggering gcc false positives
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Building rpmalloc can hit a warning in the Windows SDK.
`C: \Program Files (x86)\Windows Kits\10\include\10.0.19041.0\um\winbase.h(9572): warning C5105: macro expansion producing 'defined' has undefined behavior`
Co-Authored-By: Stefan Boberg <[email protected]>
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This PR makes it *possible* to do a Windows build on Linux via `clang-cl`.
It doesn't actually change any build process. No policy change, just mechanics and some code fixes to clear clang compilation.
The code fixes are mainly related to #include file name casing, to match the on-disk casing of the SDK files (via xwin).
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- **Sentry crashpad patch**: Make static libc++ linking conditional on `-stdlib=libc++` being active, so the patch doesn't break gcc or system clang builds that use libstdc++
- **GCC warning fix**: Suppress `-Wunused-but-set-variable` for gcc (false positive with `constinit` static locals passed by reference)
- **ASIO typo fix**: `ASIO_STANDLONE` → `ASIO_STANDALONE`
- **Toolchain verification script**: `scripts/ue_build_linux/verify_linux_toolchains.sh` for testing builds across gcc, ue-clang, clang-19 and clang-20
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- Add clang-cl warning suppressions in xmake.lua matching Linux/macOS set
- Guard /experimental:c11atomics with {tools="cl"} for MSVC-only
- Fix long long / int64_t redefinition in string.h for clang-cl
- Fix unclosed namespace in callstacktrace.cpp #else branch
- Fix missing override in httpplugin.cpp
- Reorder WorkerPool fields to match designated initializer order
- Use INVALID_SOCKET instead of SOCKET_ERROR for SOCKET comparisons
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Switches the default HTTP client to the libcurl-based backend and follows up with a series of correctness fixes and code quality improvements to `CurlHttpClient`.
**Backend switch & build fixes:**
- Switch default HTTP client to libcurl-based backend
- Suppress `[[nodiscard]]` warning when building fmt
- Miscellaneous bugfixes in HttpClient/libcurl
- Pass `-y` to `xmake config` in `xmake test` task
**Boilerplate reduction:**
- Add `Session::SetHeaders()` for RAII ownership of `curl_slist`, eliminating manual `curl_slist_free_all` calls from every verb method
- Add `Session::PerformWithResponseCallbacks()` to absorb the repeated 12-line write+header callback setup block
- Extract `ParseHeaderLine()` shared helper, replacing 4 duplicate header-parsing implementations
- Extract `BuildHeaderMap()` and `ApplyContentTypeFromHeaders()` helpers to deduplicate header-to-map conversion and Content-Type scanning
- Unify the two `DoWithRetry` overloads (PayloadFile variant now delegates to the Validate variant)
**Correctness fixes:**
- `TransactPackage`: both phases now use `PerformWithResponseCallbacks()`, fixing missing abort support and a dead header collection loop
- `TransactPackage`: error path now routes through `CommonResponse`, preserving curl error codes and messages for the caller
- `ValidatePayload`: merged 3 separate header-scan loops into a single pass
**Performance improvements:**
- Replace `fmt::format` with `ExtendableStringBuilder` in `BuildHeaderList` and `BuildUrlWithParameters`, eliminating heap allocations in the common case
- Replace `curl_easy_escape`/`curl_free` with inline URL percent-encoding using `AsciiSet`
- Remove wasteful `CommonResponse(...)` construction in retry logging, formatting directly from `CurlResult` fields
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Migrate removed deprecated APIs:
- io_service -> io_context
- io_service::work -> executor_work_guard
- resolver::query/iterator -> resolver::resolve() with results_type
- address::from_string() -> make_address()
---
Breaking Changes (1.33.0)
- deferred as default completion token — can omit token in coroutines: co_await socket.async_read_some(buf)
- cancel_after / cancel_at — timeout any async operation: co_await sock.async_read_some(buf, cancel_after(5s))
- Partial completion token adapters — as_tuple, redirect_error, bind_executor etc. composable via pipe: co_await (async_write(sock, buf) | as_tuple | cancel_after(10s))
- composed — simpler alternative to async_compose for stateful operation implementations
- co_composed moved out of experimental
1.35.0 — Allocator & Resolver
- Allocator constructors for io_context and thread_pool — control memory allocation for services, I/O objects, strands
- Configurable resolver thread pool ("resolver"/"threads")
- Timer heap pre-allocation ("timer"/"heap_reserve")
1.37.0 — Inline Executors & Reactor Tuning
- inline_executor — always executes inline (useful as completion executor)
- inline_or_executor<> — tries inline first, falls back to wrapped executor
- New dispatch/post/defer overloads that run a function on one executor and deliver result to a handler on another
- redirect_disposition — captures disposition into a variable (like redirect_error but generic)
- Reactor config: reset_edge_on_partial_read, use_eventfd, use_timerfd
Notable Fixes
- Resource leak in awaitable move assignment (1.37.0)
- Memory leak in SSL stream move assignment (1.37.0)
- Thread sanitizer issue in kqueue reactor (1.37.0)
- co_spawn non-reentrant completion handler fix (1.36.0)
- Windows file append mode fix (1.32.0)
- SSL engine move assignment leak (1.33.0)
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- Update vendored fmt library from 12.0.0 to 12.1.0
- Disable warnings-as-errors for the fmt build target (third-party code)
## Notable changes in fmt 12.1.0
- **Performance**: Optimized `buffer::append`, resulting in up to ~16% improvement on spdlog benchmarks
- **Bug fixes**:
- Worked around ABI incompatibility in `std::locale_ref` between clang and gcc
- Fixed compilation with clang 21 and `-std=c++20`
- Fixed compilation with locales disabled in header-only mode
- Fixed dynamic linking issue with clang-cl
- Fixed compatibility with clang as host compiler for NVCC
- **Formatter improvements**:
- `std::variant` and `std::expected` formatters now work with `format_as`
- Added cv-qualified type support to `std::optional` formatter
- Added demangling support for libc++ and clang-cl
- **C++ modules**: Fixed several compatibility issues, exported `is_compiled_string` and `operator""_cf`
- **Other**: Switched to global `malloc`/`free` to enable allocator customization, made `FMT_USE_CONSTEVAL` user-configurable
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Removes the vendored spdlog library (~12,000 lines) and replaces it with a purpose-built logging system in zencore (~1,800 lines). The new implementation provides the same functionality with fewer abstractions, no shared_ptr overhead, and full control over the logging pipeline.
### What changed
**New logging core in zencore/logging/:**
- LogMessage, Formatter, Sink, Logger, Registry - core abstractions matching spdlog's model but simplified
- AnsiColorStdoutSink - ANSI color console output (replaces spdlog stdout_color_sink)
- MsvcSink - OutputDebugString on Windows (replaces spdlog msvc_sink)
- AsyncSink - async logging via BlockingQueue worker thread (replaces spdlog async_logger)
- NullSink, MessageOnlyFormatter - utility types
- Thread-safe timestamp caching in formatters using RwLock
**Moved to zenutil/logging/:**
- FullFormatter - full log formatting with timestamp, logger name, level, source location, multiline alignment
- JsonFormatter - structured JSON log output
- RotatingFileSink - rotating file sink with atomic size tracking
**API changes:**
- Log levels are now an enum (LogLevel) instead of int, eliminating the zen::logging::level namespace
- LoggerRef no longer wraps shared_ptr - it holds a raw pointer with the registry owning lifetime
- Logger error handler is wired through Registry and propagated to all loggers on registration
- Logger::Log() now populates ThreadId on every message
**Cleanup:**
- Deleted thirdparty/spdlog/ entirely (110+ files)
- Deleted full_test_formatter (was ~80% duplicate of FullFormatter)
- Renamed snake_case classes to PascalCase (full_formatter -> FullFormatter, json_formatter -> JsonFormatter, sentry_sink -> SentrySink)
- Removed spdlog from xmake dependency graph
### Build / test impact
- zencore no longer depends on spdlog
- zenutil and zenvfs xmake.lua updated to drop spdlog dep
- zentelemetry xmake.lua updated to drop spdlog dep
- All existing tests pass, no test changes required beyond formatter class renames
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* added OidcToken binary to the build process. The binary is mirrored from p4 and is placed next to the output of the build process. It is also placed in the release zip archives.
* also fixed issue with Linux symbol stripping which was introduced in toolchain changes yesterday
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Compile fixes for various versions of gcc,clang (non-UE)
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* Ported "lane trace" feature from UE (by way of IAX)
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* tweaked doctest.h to avoid shutdown issues due to thread_local variables running destructors after the main thread has torn down everything including the heap
* disabled zenserver exit thread waiting since doctest should hopefully not be causing issues during shutdown anymore after my workaround
This should help reduce the duration of tests spawning lots of server instances
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this implements a yaml generation strategy similar to the JSON generation where we just build a string instead of building a ryml tree.
This also removes the dependency on ryml for reduced binary/build times.
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this change adds the `zencompute` component, which can be used to distribute work dispatched from UE using the DDB (Derived Data Build) APIs via zenserver
this change also adds a distinct zenserver compute mode (`zenserver compute`) which is intended to be used for leaf compute nodes
to exercise the compute functionality without directly involving UE, a `zen exec` subcommand is also added, which can be used to feed replays through the system
all new functionality is considered *experimental* and disabled by default at this time, behind the `zencompute` option in xmake config
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Initial implementation of zenserver "hub" mode. This is an experimental feature.
zenserver can be started in hub mode by specifying `hub` as the first argument to zenserver
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* Automated more of the decisions around which options to set when using ASAN
* Also disabled Sentry by default as it's a bit annoying to have it upload crashes during development. Sentry is still automatically enabled and integrated as part of the `xmake bundle` step however so released builds will still have it.
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This change removes our dependency on vcpkg for package management, in favour of bringing some code in-tree in the `thirdparty` folder as well as using the xmake build-in package management feature. For the latter, all the package definitions are maintained in the zen repo itself, in the `repo` folder.
It should now also be easier to build the project as it will no longer depend on having the right version of vcpkg installed, which has been a common problem for new people coming in to the codebase. Now you should only need xmake to build.
* Bumps xmake requirement on github runners to 2.9.9 to resolve an issue where xmake on Windows invokes cmake with `v144` toolchain which does not exist
* BLAKE3 is now in-tree at `thirdparty/blake3`
* cpr is now in-tree at `thirdparty/cpr`
* cxxopts is now in-tree at `thirdparty/cxxopts`
* fmt is now in-tree at `thirdparty/fmt`
* robin-map is now in-tree at `thirdparty/robin-map`
* ryml is now in-tree at `thirdparty/ryml`
* sol2 is now in-tree at `thirdparty/sol2`
* spdlog is now in-tree at `thirdparty/spdlog`
* utfcpp is now in-tree at `thirdparty/utfcpp`
* xmake package repo definitions is in `repo`
* implemented support for sanitizers. ASAN is supported on windows, TSAN, UBSAN, MSAN etc are supported on Linux/MacOS though I have not yet tested it extensively on MacOS
* the zencore encryption implementation also now supports using mbedTLS which is used on MacOS, though for now we still use openssl on Linux
* crashpad
* bumps libcurl to 8.11.0 (from 8.8.0) which should address a rare build upload bug
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* added cpr 1.10.5 in-tree to allow updates to vcpkg without breaking the build
* added asio 1.29.0 in-tree to remove one more vcpkg dependency
* bumped vcpkg to 2024.06.15 to address failure to build due to use of deprecated binaries in vcpkg (404 error: `https://mirror.msys2.org/mingw/mingw64/mingw-w64-x86_64-pkgconf-1~2.1.0-1-any.pkg.tar.zst` during build)
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move spdlog into the tree to remove dependency on vcpkg::spdlog, to allow diverging from the official version and evolve it to fit better with OTLP logging requirements
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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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Moves out third-party stuff from zencore
Establishes new pattern for incorporating thirdparty code. The integration is cleaner, clearer and also surfaces the code in the generated .sln
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* fix for invalid regex in HttpBuildStoreService - triggers with most recent MSVC version
* in GcScheduler don't wait for exit signal if exit has already been requested. this caused extended waits for shutdown in some automated tests on very fast machines, possibly also due to some behaviour change in condition_variable
* speculative fix/workaround for issue with TLS teardown on secondary thread while main was tearing down trace
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* fixed rpmalloc build on Linux and Mac
* updated rpmalloc from develop branch on the advice of mjansson
* enabled rpmalloc on all platforms
note that this does not change any behaviour unless `--malloc=rpmalloc` is passed in on the command line. The default is still `mimalloc`.
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* update Oodle libs to 2.9.14
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and libc++abi
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* add GetTimeSinceProcessStart returning time since process start. implemented using https://github.com/maxliani/GetTimeSinceProcessStart/tree/main
* fix fractions when using epoch mode. Previously it would show the fraction from the absolute time stamp and not relative to epoch
* used GetTimeSinceProcessStart to offset the epoch so that it represents the process spawn time
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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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this change adds serialization of payloads as YAML, but not parsing. The implementation is somewhat based on the JSON path, and may be collapsed eventually as it is possible to serialize JSON format using the same code
it also separates out the JSON serialization into a separate file for ease of maintenance
any HTTP request response may be formatted as yaml by using a `.yaml` suffix or an `Accept: text/yaml` header
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* add comment about 7z usage in xmake bundle
* add ue-libcxx lib/headers and licence + tps
* update get_ue_toolchain.sh to use embedded libc++ and decouple from p4
* clearer output when falling back to zip from 7z
* update ci scripts to use ue toolchain on linux
* updated linux build README.md
* changelog
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use BLAKE3 port from vcpkg instead of in-tree binaries
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