A means of testing whether code is in blocked or unblocked mode
There is currently no way for code, e.g. in a library, to test whether it is running in a blocked or unblocked state. The only uses I have for this is to implement work arounds for the problem with throwTo & block (ticket 1047) or to write forkInheritIO in terms of forkIO and forkBlockedIO (from ticket 1048).
something like:
areExceptionsBlocked :: IO Bool -- True in scope of block, false in scope of unblock
Trac metadata
Trac field | Value |
---|---|
Version | 6.6 |
Type | FeatureRequest |
TypeOfFailure | OtherFailure |
Priority | low |
Resolution | Unresolved |
Component | libraries/base |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | Multiple |
Architecture | Multiple |