1 files changed, 11 insertions, 0 deletions
diff --git a/include/input/InputTransport.h b/include/input/InputTransport.h
index 750e170c24..2d64872beb 100644
--- a/include/input/InputTransport.h
+++ b/include/input/InputTransport.h
@@ -290,6 +290,17 @@ public:
      */
     bool probablyHasInput() const;
 
+    /* Wait until there is a message in the channel.
+     *
+     * The |timeout| specifies how long to block waiting for an input event to appear. Negative
+     * values are not allowed.
+     *
+     * In some cases returning before timeout expiration can happen without a message available.
+     * This could happen after the channel was closed on the other side. Another possible reason
+     * is incorrect setup of the channel.
+     */
+    void waitForMessage(std::chrono::milliseconds timeout) const;
+
     /* Return a new object that has a duplicate of this channel's fd. */
     std::unique_ptr<InputChannel> dup() const;