From 97bac70fae702435bf3cb4bc06f33654df7cdf57 Mon Sep 17 00:00:00 2001
From: "Jerry (Xinyu Hou)" <xinyu@synergy-project.org>
Date: Fri, 29 May 2015 16:55:22 -0700
Subject: [PATCH] Stop writing into and clear buffer when no GUI #4721

---
 src/lib/ipc/IpcLogOutputter.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/lib/ipc/IpcLogOutputter.cpp b/src/lib/ipc/IpcLogOutputter.cpp
index 6ce8d774..cf0fa03c 100644
--- a/src/lib/ipc/IpcLogOutputter.cpp
+++ b/src/lib/ipc/IpcLogOutputter.cpp
@@ -95,6 +95,13 @@ IpcLogOutputter::show(bool showIfEmpty)
 bool
 IpcLogOutputter::write(ELevel, const char* text)
 {
+	if (!m_ipcServer.hasClients(kIpcClientGui)) {
+		if (!m_buffer.empty()) {
+			m_buffer.clear();
+		}
+		return true;
+	}
+
 	// ignore events from the buffer thread (would cause recursion).
 	if (m_bufferThread != nullptr &&
 		Thread::getCurrentThread().getID() == m_bufferThreadId) {