Add an opt-in alternative to closing LeagueClientUx: hide the managed
LeagueClientUx and Riot Client X11 windows while the game process runs and
show them again when it exits. The client stays open; the game window is
never touched.
Detection is attributed to the launcher prefix through __mldr_sockpath and
fails closed when proc, ownership or window state is unreadable. The helper
requires X11/Xwayland, restores the window on end, signal or error, and is
mutually exclusive with RCLOL_CLOSE_CLIENT_IN_GAME=1.
Document the flag, compliance scope and limits. A local 30-second test on an
i5-3470/RX 550 reduced summed client/CEF CPU from 120.7% to 93.4%; this is a
CPU-bound-host measurement, not a universal FPS claim.
No client binaries, CEF, assets or anti-cheat are modified.
Match the legacy entry against this checkout's desktop-run.sh instead of any
desktop-run.sh, and delete the legacy icon files only after that entry or the
old artwork proves ownership. Quote and escape Exec arguments as the Desktop
Entry specification requires, so a checkout path with reserved characters no
longer produces an invalid entry, and escape the Path value.
Use StartupWMClass=RiotClientServices in both entries: Darling derives WM_CLASS
from -[NSProcessInfo processName], the basename of argv[0], and the launcher
starts .../RiotClientServices. "Riot Client" is only the bundle display name,
so the checkout entry never matched the window. Both entries now share
Name/GenericName/Comment/Icon/Keywords/Categories and a test keeps them in
sync; Terminal stays different because the checkout entry logs to
build/desktop-launch.log while the packaged entry runs the session in a
terminal.
Also drop the stray top-level icon copies, handle dangling legacy symlinks,
name the icon for assistive technology, document the alias and menu entry, and
cover the helper with disposable-HOME tests.
Open with no row selected passed nil to -_setFilename:, and NSOpenPanel boxed it in an
array literal, so the action threw before the modal session was stopped and the panel
stayed up. Both buttons now go through one helper that stops the session only when
this panel is the modal window and always orders the panel out; Open accepts the
selection (filtered by canChooseFiles/canChooseDirectories and multiple-selection),
or the shown directory for directory choosers. Escape cancels.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Restack and makeKey no longer map a window AppKit considers hidden, and
setIsVisible: NO always unmaps, so the client's splash stays hidden.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
#79 made update.sh stop Darling again after the overlays and run
configure-darling-platform.py --replace-known-defaults --write. The
rootless update test still expected the old call list and failed. Stub the
identity tool, expect the stop + identity calls last, and check a failed
install never reaches them.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Older setups shipped serial C02ZL0GVMD6N and UUID
6F3B2A1E-8C4D-4E5F-9A7B-1D2C3E4F5A6B to every install. After installing,
update.sh now runs configure-darling-platform.py --replace-known-defaults,
which provisions the prefix only when its saved identity still has one of
those values. Other custom values (imported serials/UUIDs, model, board,
manufacturer, ROM, MLB) are kept; prefixes with no saved identity or only
custom values are not touched.
provision() also drops a standalone system-id or provisioning_UDID derived
from the shared UUID instead of keeping it.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
last_close started at 0.0 and the cooldown compares it with
time.monotonic(), which counts from boot. For the first 30 s of uptime
every close was refused as "in cooldown". That made the tests flaky on
freshly booted CI runners (seen on PR #76). Use None for "never closed".
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A long patch or login can keep the League client closed for more than ten
minutes after launch; the helper then left before the first match.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The client does not come back properly after a match when its own "Close client
during game" option is enabled. The UI (LeagueClientUx and its helpers) is a
Chromium/CEF instance and, under Darling, the pre-match instance keeps running:
the client the backend starts when the match ends is a second CEF instance on the
same --user-data-dir, and its window never paints. Its DOM and audio work and the
window stays black; closing the client by hand during a match leaves the same
state for the same reason.
RCLOL_CLOSE_CLIENT_IN_GAME=1 opts in to closing that UI from the host, and only
while a match runs, so the client that appears afterwards is the only instance.
The UI also competes with the game for CPU: on a four-core host with a Radeon
RX 550 a practice match reported roughly 120 FPS with the UI running and roughly
180 FPS with it closed. This is not the helper-killing memory optimization the
RAM section warns against, and the Riot client, the League backend and the game
are never touched.
The helper fails closed. It attributes the game and the client to the launcher's
prefix through the loader's __mldr_sockpath, since guest processes do not carry
DPREFIX (checked on a live session). It never closes a client younger than 60
seconds (the one the backend starts after a match), preserves a process of
another installation or owner, acts only when the environment and the stat fields
can be read, gives up after three closes in one match, and leaves after ten
minutes without a client or a match. It is off by default.
Tests use fake /proc entries and mock every signal.
Stage a cross-filesystem copy in a private directory instead of deleting a
pre-existing PATH.partial, reject destinations inside the overlay work
directory, save the new path before deleting the old prefix, and verify that
the target keeps user.* xattrs before and after copying. Add tests.
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
The prefix holds the installed clients and game (about 40 GB). The Nix
launcher always exported DPREFIX=${DPREFIX:-~/.darling}, so the prefix saved
in build/config.json was never used and the only way to move it was an
environment variable in every launch context.
- The launcher uses DPREFIX if set, then the saved prefix, then ~/.darling.
- darling-lol --set-prefix PATH runs scripts/nix-prefix.py in the namespace,
whose root owns the prefix files, so cp -a keeps their owners and xattrs.
It renames the prefix when possible; across filesystems it copies to
PATH.partial and removes the old prefix and its overlay work directory
only after the copy completes. A PATH that already holds a Darling prefix
is used as it is. It refuses non-empty directories that are not prefixes,
nested paths and paths with commas or colons (overlayfs separators), then
saves the path with configure.py --prefix.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
With DARLING_METAL_MAC_GPU_NAME=1, MTLDevice.name is the GPU the
MacBookPro16,1 that IOKit reports shipped with, from the host's vendor:
"AMD Radeon Pro 5500M" (vendor 0x1002) or "Intel UHD Graphics 630"
(0x8086). NVIDIA keeps its own name so the game never takes another
vendor's driver paths. recommendedMaxWorkingSetSize and every other value
stay the host's, which was the risky part of #61's identity.
The Riot launcher turns it on by default (0 or empty turns it off); other
Darling apps keep the host name. DARLING_METAL_GPU_NAME still wins.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
system_profiler now answers SPHardwareDataType and SPSoftwareDataType (and
lists them in -listDataTypes). Model, serial number, platform UUID and
provisioning UDID come from IOKit's IOPlatformExpertDevice via ioreg; CPU,
cache and memory from sysctl; the OS version from sw_vers and uname. A
field the guest does not provide is left out.
#61 instead read a separate darling-smbios.conf written by a new
generator (gen-darling-smbios.py), with hardcoded fallbacks (an Intel Core
i9, macOS 14.7, SIP enabled). iokitd reads darling-platform.plist, so
system_profiler and IOKit could report different serials and models on the
same prefix, and the generator overwrote identities imported with
configure-darling-platform.py. Reading the guest's own APIs keeps a single
source of truth: configure-darling-platform.py remains the only way to set
or provision an identity, and it is still never run by install or launch.
tests/test_system_profiler.py runs the script under sh with stub guest
commands and runs in CI.
Split from #61.
Co-authored-by: DevWebeloper <[email protected]>
Co-Authored-By: Claude Opus 5.5 <[email protected]>
From #61, without the default "AMD Radeon Pro 5500M" / 4 GB identity: the
host GPU's name and Vulkan working set stay the default for every app, and
the existing DARLING_METAL_GPU_NAME and DARLING_METAL_VRAM_MB overrides
remain the opt-in. Reporting 4 GB on a 2 GB card invites allocation
failures, and under-reports larger cards.
Kept from #61:
- registryID returns MTLDeviceInfo::kDefaultRegistryID instead of 0; a
real Mac never reports 0 and apps key devices by it.
- Vertex buffer layout and attribute arrays release the old item after
retiring it; the retire step read the item after the release could free it.
- newDepthStencilState, newSamplerState and the device name return nil (or
the fallback name) when Indium throws, instead of unwinding through
Objective-C.
- MTLDepthStencilGetIndium is declared only with DARLING_METAL_ENABLED.
- The replaceRegion trace probes at most `width` bytes, which stays inside
the first row for every pixel format.
metal.patch is regenerated in its existing file order, so the diff is
these changes only. tests/test_metal_device_info.py compiles the host
check against MTLDeviceInfo.h as shipped in the patch and runs in CI.
Split from #61.
Co-authored-by: DevWebeloper <[email protected]>
Co-Authored-By: Claude Opus 5.5 <[email protected]>
After the clients quit, the session kept Darling running: Riot and League
crash handlers never exit under Darling, and the idle check counted them as
clients. Ctrl+C or closing the terminal killed bubblewrap, whose
--die-with-parent then killed nix-lifecycle.py before it could shut Darling
down, which left a live server marker behind.
- nix-idle.py ignores crash handlers when deciding whether a client still
uses the prefix.
- The launcher starts bubblewrap with INT, QUIT, HUP and TERM ignored, and
env restores them inside. The supervisor turns them into a stop request.
- nix-lifecycle.py polls for a signal or stop request and then shuts Darling
down without waiting for clients. It stops retrying a failed shutdown once
the server is gone, and waits for or kills its own command afterwards.
- darling-lol --stop makes the stop request and waits for the session. If
the session does not exit within 30 seconds, or no session holds the lock,
it kills the prefix's darlingserver and launchd like darling shutdown,
after checking that the marker PID is this user's darlingserver for this
prefix.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
RCLOL_FILTER_HOST_ENV=1 makes exec-guest.py drop host session metadata
(WAYLAND_DISPLAY, XDG_SESSION_*, XDG_CURRENT_DESKTOP, GNOME/KDE/GDM,
systemd, SSH agent, terminal, toolkit, Flatpak/Snap/AppImage, exported
shell functions) and set SHELL to the guest's /bin/zsh. It is off by
default; RCLOL_KEEP_HOST_ENV lists names to keep anyway.
Unlike the denylist in #61, the filter runs after the launcher sets its
GPU tuning, keeps everything Darling and the host graphics and audio
libraries read (DISPLAY, XAUTHORITY, XDG_RUNTIME_DIR and the XDG base
directories, D-Bus, PulseAudio/PipeWire/ALSA, DRI_PRIME, MESA_*, __GL_*,
__NV_*, VK_*, LD_PRELOAD for gamemoderun, LD_LIBRARY_PATH), and lives in
one place instead of three.
tests/test_exec_guest.py runs in CI; the launcher check also verifies
that MESA_NO_ERROR=1 and __GL_THREADED_OPTIMIZATIONS=0 reach the guest
with the filter on.
Split from #61.
Co-authored-by: DevWebeloper <[email protected]>
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Keep the merged per-device completion budget, bounded parsing, idle blocking and timeout accounting. Scope the registration/blocking handshake to each device, restrict live batch windows to the timer resolution, and test registration interleavings, spin-disabled polling, shutdown, opt-out and independent devices with actual patched methods.
Co-authored-by: SypherrDev <[email protected]>
Ignore both invalidation methods on the shared session; deliver task completion through the owning session delegate queue. Extend the standalone probe to exercise singleton reuse and a suspended custom queue. Require stable old-client process identities and complete window data before optional recovery, and continue launch after shutdown failures.
Rebuild the remaining NVIDIA changes on current main, preserving the merged visual, draw-buffer, descriptor ownership and mixed Metal-tree fixes. Scope native-thread forwarding to resize notifications and make completion polling per device, bounded and part of the caller timeout budget.
Co-authored-by: Pirrandi <[email protected]>
Security reads the system trust domain from
/System/Library/Keychains/SystemRootCertificates.keychain and
SystemTrustSettings.plist (TrustSettingsSchema.h). Darling ships neither, so
SecTrustSettingsCopyCertificates(kSecTrustSettingsDomainSystem) returns
errSecNoTrustSettings (-25263); Chromium's known_roots_mac and Riot's
CertBundle then report that they cannot read the system roots.
ensure-darling-root-certificates.py parses each host root with a minimal DER
walker and writes the trust record keyed by the uppercase SHA-1, with the
encoded issuer Name, the serial INTEGER's content octets, modDate and an
empty (unrestricted) trustSettings array. The keychain is built with the
guest security tool in one darling shell, in a private temporary directory,
and published from inside the guest so a running Darling sees it, falling
back to the host when the guest cannot write the directory. A digest stamp
skips later runs without starting Darling. The launcher warns and continues
on failure; install-runtime.sh runs it before stopping Darling.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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