Replace error prone signal() with sigaction()

Up to this date signal() was used which implementation could vary [1].
Sigaction() call is preferred. This commit introduces replacement
from signal() to sigaction() by the use of signal_s() wrapper.
Also remove redundant signal.h header includes.

[1] https://man7.org/linux/man-pages/man2/signal.2.html

Signed-off-by: Lukasz Florczak <lukasz.florczak@linux.intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/monitor.c b/monitor.c
index e0d3be67..b877e595 100644
--- a/monitor.c
+++ b/monitor.c
@@ -22,7 +22,6 @@
 #include "mdmon.h"
 #include <sys/syscall.h>
 #include <sys/select.h>
-#include <signal.h>
 
 static char *array_states[] = {
 	"clear", "inactive", "suspended", "readonly", "read-auto",