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| author | Ralf Jung <post@ralfj.de> | 2021-07-09 20:50:08 +0200 |
|---|---|---|
| committer | Ralf Jung <post@ralfj.de> | 2021-07-10 11:54:38 +0200 |
| commit | 2750d3ac6a4f6015a7a9720b8fbcb3610aa691e1 (patch) | |
| tree | 51e67cea0b7c657bc90f06bd3dd5a4115a962c1e /library/std/src/thread | |
| parent | 619c27a53959e2d79aadb01cba5b2c49756df771 (diff) | |
| download | rust-2750d3ac6a4f6015a7a9720b8fbcb3610aa691e1.tar.gz rust-2750d3ac6a4f6015a7a9720b8fbcb3610aa691e1.zip | |
avoid reentrant lock acquire when ThreadIds run out
Diffstat (limited to 'library/std/src/thread')
| -rw-r--r-- | library/std/src/thread/mod.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/library/std/src/thread/mod.rs b/library/std/src/thread/mod.rs index da2d1160493..5630904da77 100644 --- a/library/std/src/thread/mod.rs +++ b/library/std/src/thread/mod.rs @@ -1004,6 +1004,7 @@ impl ThreadId { // If we somehow use up all our bits, panic so that we're not // covering up subtle bugs of IDs being reused. if COUNTER == u64::MAX { + drop(_guard); // in case the panic handler ends up calling `ThreadId::new()`, avoid reentrant lock acquire. panic!("failed to generate unique thread ID: bitspace exhausted"); } |