Fix race in QEMU shutdown

1 files changed, 4 insertions, 4 deletions

diff --git a/bbot/agent/machine.hxx b/bbot/agent/machine.hxx
index b1ad874..04da80e 100644
--- a/bbot/agent/machine.hxx
+++ b/bbot/agent/machine.hxx
@@ -38,10 +38,10 @@ namespace bbot
     virtual void
     suspend (bool fail_hard = true) = 0;
 
-    // Wait for the machine to terminate up to the specified number of
-    // seconds. Update the timeout and return false if the machine is still
-    // running, true if the machine exited successfully, and throw failed
-    // otherwise.
+    // Wait for the machine to terminate up to the specified number of seconds
+    // (with 0 meaning don't wait). Update the timeout and return false if the
+    // machine is still running, true if the machine exited successfully, and
+    // throw failed otherwise.
     //
     virtual bool
     wait (size_t& seconds, bool fail_hard = true) = 0;