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    78cb8dd5
    Add the StgAsyncIOOp closure type · 78cb8dd5
    Duncan Coutts authored and Marge Bot's avatar Marge Bot committed 
    This is intended to be used by multiple I/O managers to help with
tracking in-flight I/O operations.

It is called asynchronous because from the point of view of the RTS we
have many such operations in progress at once. From the point of view of
a Haskell thread of course it can look synchronous.
    78cb8dd5
    Add the StgAsyncIOOp closure type
    Duncan Coutts authored and Marge Bot's avatar Marge Bot committed 
    This is intended to be used by multiple I/O managers to help with
tracking in-flight I/O operations.

It is called asynchronous because from the point of view of the RTS we
have many such operations in progress at once. From the point of view of
a Haskell thread of course it can look synchronous.