Marcelo Lynch 5d41b3bdce fix: avoid deadlock by not throttling workers when the task manager is shutting down (#12052) ... This PR avoids a potential deadlock on shutdown of a Lean program when the number of pooled threads has temporarily been pushed above the limit. There's a potential race between the finalizer "waking up everyone" after setting `m_shutting_down = true` and a worker that is about to be throttled because of concurrency limits. - `m_max_std_workers = 1`, `m_std_workers.size() = 2`, and the queue still has tasks. - Finalizer sets `m_shutting_down = true` and calls `notify_all()` while a worker is running a task (outside of the mutex). - Worker finishes a task, re-enters the loop, sees work, and "should wait" because `active >= max`. - Worker then calls `wait()` after the notify and never wakes, so `join()` in the finalizer hangs. This PR avoids the worker being blocked by not `wait()`ing if we are already shutting down. The code is restructured a bit for readability, where the first section is "there's no work in the queue" and the next section is "there is some work in the queue"		2026-02-02 16:14:32 +00:00
..
uv	fix: Signal.Handler segmentation fault with Selector (#11724)	2025-12-27 02:07:00 +00:00
alloc.cpp	fix: heartbeats from realizeConst should be ignored (#7473)	2025-03-13 15:10:29 +00:00
alloc.h	fix: heartbeats from realizeConst should be ignored (#7473)	2025-03-13 15:10:29 +00:00
allocprof.cpp	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
allocprof.h	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
apply.cpp	fix: deallocation for closures in non default configurations (#11217)	2025-11-17 16:27:20 +00:00
apply.h	fix: split libInit_shared out of libleanshared (#3421)	2024-02-22 19:16:32 +00:00
array_ref.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
buffer.h	chore: re-land "perf: use C23's free_sized when available" (#6844)	2025-02-04 12:43:56 +00:00
byteslice.cpp	feat: add useful functions in Parsec, add error variant and Std.Data.ByteSlice (#9599)	2025-09-11 14:53:41 +00:00
byteslice.h	feat: add useful functions in Parsec, add error variant and Std.Data.ByteSlice (#9599)	2025-09-11 14:53:41 +00:00
CMakeLists.txt	chore: reformat all cmake files (#12218)	2026-01-28 18:23:08 +00:00
compact.cpp	fix: ensure padding bytes for lean::mpz objects in olean files are zero (#11485)	2025-12-09 10:59:15 +00:00
compact.h	fix: ensure padding bytes for lean::mpz objects in olean files are zero (#11485)	2025-12-09 10:59:15 +00:00
debug.cpp	refactor: port shell option processing to Lean (v2) (#11434)	2025-12-02 17:41:51 +00:00
debug.h	fix: split libInit_shared out of libleanshared (#3421)	2024-02-22 19:16:32 +00:00
exception.cpp	doc: add link to reference manual in stack overflow message (#12157)	2026-01-26 07:56:48 +00:00
exception.h	fix: split libInit_shared out of libleanshared (#3421)	2024-02-22 19:16:32 +00:00
flet.h	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
hash.cpp	chore: replace all hashes by murmurhash	2022-12-01 20:18:14 -08:00
hash.h	feat: define Int8 (#5790)	2024-10-25 06:06:40 +00:00
init_module.cpp	feat: implement basic async IO with timers (#6505)	2025-01-13 18:11:04 +00:00
init_module.h	fix: split libInit_shared out of libleanshared (#3421)	2024-02-22 19:16:32 +00:00
int.h	feat: define ISize and basic operations on it (#5961)	2024-11-05 15:08:19 +00:00
interrupt.cpp	feat: zero cost BaseIO (#10625)	2025-10-22 10:55:12 +02:00
interrupt.h	fix: Windows build (#4628)	2024-07-02 20:32:00 +00:00
io.cpp	chore: fix typo (#11883)	2026-01-03 11:36:50 +00:00
io.h	fix: handle NUL bytes in IO functions (#9616)	2025-08-01 06:12:53 +00:00
libuv.cpp	feat: add signal handling support using libuv (#9258)	2025-09-15 13:09:50 +00:00
libuv.h	feat: add signal handling support using libuv (#9258)	2025-09-15 13:09:50 +00:00
list_ref.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
memory.cpp	feat: zero cost BaseIO (#10625)	2025-10-22 10:55:12 +02:00
memory.h	fix: split libInit_shared out of libleanshared (#3421)	2024-02-22 19:16:32 +00:00
mpn.cpp	feat: add mpn module	2021-10-25 15:57:19 -07:00
mpn.h	feat: add mpn module	2021-10-25 15:57:19 -07:00
mpz.cpp	fix: call delete [] on array allocations (#11453)	2025-12-10 16:51:54 +00:00
mpz.h	feat: optimized division without remainder for Int and Nat (#8089)	2025-04-29 07:23:35 +00:00
mutex.cpp	feat: zero cost BaseIO (#10625)	2025-10-22 10:55:12 +02:00
mutex.h	feat: Mutex, Condvar	2022-09-05 08:52:46 -07:00
object.cpp	fix: avoid deadlock by not throttling workers when the task manager is shutting down (#12052)	2026-02-02 16:14:32 +00:00
object.h	fix: revert the waitAny refactoring (#11000)	2025-10-29 08:27:16 +00:00
object_ref.cpp	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
object_ref.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
option_ref.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
optional.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
pair_ref.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
platform.cpp	feat: ignore lean -R if module name is in setup (#8874)	2025-06-23 17:55:52 +00:00
platform.h	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
process.cpp	fix: IO.Process.spawn empty env var on Windows (#12220)	2026-01-31 19:17:26 +00:00
process.h	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
sharecommon.cpp	feat: support mpz in the shareCommon APIs (#7838)	2025-04-06 19:52:50 +00:00
sharecommon.h	perf: use mimalloc with important C++ hash maps (#7868)	2025-04-11 16:23:33 +00:00
sstream.h	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
stack_overflow.cpp	fix: Do not overwrite existing signal handlers (#5062)	2024-08-19 09:11:38 +00:00
stack_overflow.h	chore: reduce src/include/lean	2021-09-07 08:24:54 -07:00
stackinfo.cpp	fix: make the stack handling more robust to sanitizers and -O3 (#6143)	2024-11-22 15:10:20 +00:00
stackinfo.h	fix: split libInit_shared out of libleanshared (#3421)	2024-02-22 19:16:32 +00:00
string_ref.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
thread.cpp	refactor: port shell option processing to Lean (v2) (#11434)	2025-12-02 17:41:51 +00:00
thread.h	perf: mark move constructors and assignment operators as noexcept (#10784)	2025-10-22 14:21:51 +00:00
utf8.cpp	fix: validate UTF-8 at C++ -> Lean boundary (#3963)	2024-06-19 14:05:48 +00:00
utf8.h	fix: validate UTF-8 at C++ -> Lean boundary (#3963)	2024-06-19 14:05:48 +00:00