From e1d0c8aa79121537cdb01529ed7115b90a6ed2f7 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Thu, 12 Jan 2023 23:55:58 -0500
Subject: [PATCH] fix #920

---
 src/log.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/log.cpp b/src/log.cpp
index 1611e688..8fec1318 100644
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -29,13 +29,14 @@ int logLevel=LOGLEVEL_INFO;
 
 FILE* logFile;
 char* logFileBuf;
+char* logFileWriteBuf;
 unsigned int logFilePosI;
 unsigned int logFilePosO;
 std::thread* logFileThread;
 std::mutex logFileLock;
 std::mutex logFileLockI;
 std::condition_variable logFileNotify;
-bool logFileAvail=false;
+std::atomic<bool> logFileAvail(false);
 
 std::atomic<unsigned short> logPosition;
 
@@ -157,8 +158,8 @@ void _logFileThread() {
       }
     } else {
       // wait
-      if (!logFileAvail) break;
       fflush(logFile);
+      if (!logFileAvail) break;
       logFileNotify.wait(lock);
     }
   }
@@ -177,6 +178,7 @@ bool startLogFile(const char* path) {
   }
 
   logFileBuf=new char[TA_LOGFILE_BUF_SIZE];
+  logFileWriteBuf=new char[TA_LOGFILE_BUF_SIZE];
   logFilePosI=0;
   logFilePosO=0;
   logFileAvail=true;