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feat(gen_server): handle_info — static info arms selected ahead of the inbox

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type Info + handle_info (no-op default) on GenServer; ServerBuilder
(with_info/under/start) so start variants don't multiply — start/start_under
stay as wrappers. The loop selects [infos.., inbox] in priority order when
info arms exist, and keeps the plain recv() park when none do. Closed info
arms are silently removed (closed-arm-is-ready-forever); a closed inbox
still means graceful shutdown.
This commit is contained in:
Claude
2026-06-10 14:56:51 +00:00
parent e545f818fa
commit e5d1b3b54b
3 changed files with 250 additions and 33 deletions
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src/lib.rs
+1 -1
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@@ -46,7 +46,7 @@ static ALLOCATOR: preempt::PreemptingAllocator = preempt::PreemptingAllocator;
// ---------------------------------------------------------------------------
pub use channel::{channel, select, select_timeout, Receiver, RecvError, RecvTimeoutError, Selectable, Sender};
pub use gen_server::{CallError, CallTimeoutError, CastError, GenServer, ServerRef};
pub use gen_server::{CallError, CallTimeoutError, CastError, GenServer, ServerBuilder, ServerRef};
pub use link::{link, trap_exit, unlink, ExitSignal};
pub use monitor::{demonitor, monitor, Down, DownReason, Monitor, MonitorId};
pub use mutex::{LockTimeout, Mutex, MutexGuard};