From aa3da7d73f9ba94626814ecdeb7c05108a2a5145 Mon Sep 17 00:00:00 2001
From: tezc <tezc.vx@gmail.com>
Date: Wed, 20 Jan 2021 06:53:13 +0300
Subject: [PATCH] fix global variables for signal.

---
 signal/sc_signal.c | 19 ++++++++++++++++++-
 signal/sc_signal.h |  8 ++++----
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/signal/sc_signal.c b/signal/sc_signal.c
index ce2fc55..e511291 100644
--- a/signal/sc_signal.c
+++ b/signal/sc_signal.c
@@ -33,6 +33,24 @@
 #include <stdlib.h>
 #include <string.h>
 
+#if defined(_WIN32)
+#include <WinSock2.h>
+volatile SOCKET sc_signal_shutdown_fd;
+#else
+volatile sig_atomic_t sc_signal_shutdown_fd;
+#endif
+
+/**
+ * Set log file fd here, logging will be redirected to this fd, otherwise
+ * STDERR_FILENO or STDOUT_FILENO will be used.
+ */
+volatile sig_atomic_t sc_signal_log_fd;
+
+/**
+ * Internal variable to handle twice shutdown signal.
+ */
+volatile sig_atomic_t sc_signal_will_shutdown;
+
 #define get_uint(va, size)                                                     \
     (size) == 3 ? va_arg(va, unsigned long long) :                             \
     (size) == 2 ? va_arg(va, unsigned long) :                                  \
@@ -482,4 +500,3 @@ void sc_signal_log(int fd, char *buf, size_t len, char *fmt, ...)
 
     (void) write(fd, buf, written);
 }
-
diff --git a/signal/sc_signal.h b/signal/sc_signal.h
index a08f2fe..6e8c155 100644
--- a/signal/sc_signal.h
+++ b/signal/sc_signal.h
@@ -37,21 +37,21 @@
  */
 #if defined(_WIN32)
 #include <WinSock2.h>
-volatile SOCKET sc_signal_shutdown_fd;
+extern volatile SOCKET sc_signal_shutdown_fd;
 #else
-volatile sig_atomic_t sc_signal_shutdown_fd;
+extern volatile sig_atomic_t sc_signal_shutdown_fd;
 #endif
 
 /**
  * Set log file fd here, logging will be redirected to this fd, otherwise
  * STDERR_FILENO or STDOUT_FILENO will be used.
  */
-volatile sig_atomic_t sc_signal_log_fd;
+extern volatile sig_atomic_t sc_signal_log_fd;
 
 /**
  * Internal variable to handle twice shutdown signal.
  */
-volatile sig_atomic_t sc_signal_will_shutdown;
+extern volatile sig_atomic_t sc_signal_will_shutdown;
 
 /**
  * Init signal handler, hooks for shutdown signals and some fatal signals.