From 83ae6503e87c7f5237fb0f1602793c126436495a Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Wed, 25 Jan 2017 13:37:02 +0100
Subject: Fix interrupt handling

---
 src/libutil/util.hh | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/libutil/util.hh')

diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index b68d48582b34..07141ffed6b5 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -433,5 +433,21 @@ struct InterruptCallback
 std::unique_ptr<InterruptCallback> createInterruptCallback(
     std::function<void()> callback);
 
+void triggerInterrupt();
+
+/* A RAII class that causes the current thread to receive SIGUSR1 when
+   the signal handler thread receives SIGINT. That is, this allows
+   SIGINT to be multiplexed to multiple threads. */
+struct ReceiveInterrupts
+{
+    pthread_t target;
+    std::unique_ptr<InterruptCallback> callback;
+
+    ReceiveInterrupts()
+        : target(pthread_self())
+        , callback(createInterruptCallback([&]() { pthread_kill(target, SIGUSR1); }))
+    { }
+};
+
 
 }
-- 
cgit 1.4.1