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-rw-r--r--doc/ref/api-scheduling.texi5
1 files changed, 3 insertions, 2 deletions
diff --git a/doc/ref/api-scheduling.texi b/doc/ref/api-scheduling.texi
index 45b5315ce..564d43fe0 100644
--- a/doc/ref/api-scheduling.texi
+++ b/doc/ref/api-scheduling.texi
@@ -112,12 +112,13 @@ If one or more threads are waiting to execute, calling yield forces an
immediate context switch to one of them. Otherwise, yield has no effect.
@end deffn
-@deffn {Scheme Procedure} cancel-thread thread
+@deffn {Scheme Procedure} cancel-thread thread . values
@deffnx {C Function} scm_cancel_thread (thread)
Asynchronously interrupt @var{thread} and ask it to terminate.
@code{dynamic-wind} post thunks will run, but throw handlers will not.
If @var{thread} has already terminated or been signaled to terminate,
-this function is a no-op.
+this function is a no-op. Calling @code{join-thread} on the thread will
+return the given @var{values}, if the cancel succeeded.
Under this hood, thread cancellation uses @code{system-async-mark} and
@code{abort-to-prompt}. @xref{Asyncs} for more on asynchronous