fix some identifier links
-- exceptions: 'ioErrors', 'arithExceptions', and so on. For example,
-- to catch just calls to the 'error' function, we could use
--
-- exceptions: 'ioErrors', 'arithExceptions', and so on. For example,
-- to catch just calls to the 'error' function, we could use
--
--- > result \<- catchJust errorCalls thing_to_try handler
+-- > result <- catchJust errorCalls thing_to_try handler
--
-- Any other exceptions which are not matched by the predicate
-- are re-raised, and may be caught by an enclosing
--
-- Any other exceptions which are not matched by the predicate
-- are re-raised, and may be caught by an enclosing
Some operations are /interruptible/, which means that they can receive
asynchronous exceptions even in the scope of a 'block'. Any function
which may itself block is defined as interruptible; this includes
Some operations are /interruptible/, which means that they can receive
asynchronous exceptions even in the scope of a 'block'. Any function
which may itself block is defined as interruptible; this includes
-'takeMVar' (but not 'tryTakeMVar'), and most operations which perform
-some I\/O with the outside world.. The reason for having
+'Control.Concurrent.MVar.takeMVar'
+(but not 'Control.Concurrent.MVar.tryTakeMVar'),
+and most operations which perform
+some I\/O with the outside world. The reason for having
interruptible operations is so that we can write things like
> block (
interruptible operations is so that we can write things like
> block (
-if the 'takeMVar' was not interruptible, then this particular
+if the 'Control.Concurrent.MVar.takeMVar' was not interruptible,
+then this particular
combination could lead to deadlock, because the thread itself would be
blocked in a state where it can\'t receive any asynchronous exceptions.
combination could lead to deadlock, because the thread itself would be
blocked in a state where it can\'t receive any asynchronous exceptions.
-With 'takeMVar' interruptible, however, we can be
+With 'Control.Concurrent.MVar.takeMVar' interruptible, however, we can be
safe in the knowledge that the thread can receive exceptions right up
safe in the knowledge that the thread can receive exceptions right up
-until the point when the 'takeMVar' succeeds.
+until the point when the 'Control.Concurrent.MVar.takeMVar' succeeds.
Similar arguments apply for other interruptible operations like
Similar arguments apply for other interruptible operations like
-}
-- -----------------------------------------------------------------------------
-}
-- -----------------------------------------------------------------------------
-- * GHC currently does not throw 'HeapOverflow' exceptions.
| ThreadKilled
-- ^This exception is raised by another thread
-- * GHC currently does not throw 'HeapOverflow' exceptions.
| ThreadKilled
-- ^This exception is raised by another thread
- -- calling 'killThread', or by the system
+ -- calling 'Control.Concurrent.killThread', or by the system
-- if it needs to terminate the thread for some
-- reason.
deriving (Eq, Ord)
-- if it needs to terminate the thread for some
-- reason.
deriving (Eq, Ord)