1 files changed, 4 insertions, 3 deletions
diff --git a/lldb/source/Host/posix/MainLoopPosix.cpp b/lldb/source/Host/posix/MainLoopPosix.cpp
index 19a7128..c6fe7814 100644
--- a/lldb/source/Host/posix/MainLoopPosix.cpp
+++ b/lldb/source/Host/posix/MainLoopPosix.cpp
@@ -387,10 +387,11 @@ void MainLoopPosix::ProcessSignal(int signo) {
   }
 }
 
-void MainLoopPosix::Interrupt() {
+bool MainLoopPosix::Interrupt() {
   if (m_interrupting.exchange(true))
-    return;
+    return true;
 
   char c = '.';
-  cantFail(m_interrupt_pipe.Write(&c, 1));
+  llvm::Expected<size_t> result = m_interrupt_pipe.Write(&c, 1);
+  return result && *result != 0;
 }