/* Global watchdog fd, required by signal handler */
int wdfd = -1;
+/* Handle finished childs */
+static void sigchld_handler(int sig)
+{
+ pid_t pid;
+
+ while( (pid = waitpid(-1, NULL, WNOHANG)) > 0 )
+ syslog(LOG_INFO, "Child returned (pid %d)", pid);
+}
+
/* Watchdog shutdown helper */
static void shutdown_watchdog(int sig)
{
- static int wdelay = 3600;
static const char wshutdown = WATCH_SHUTDOWN;
if( wdfd > -1 )
int loadavg_panic = 0;
openlog(SYSLOG_IDENT, 0, LOG_DAEMON);
- //daemon(1, 1);
+ memset(&sa, 0, sizeof(sa));
if( (iwfd = socket(AF_INET, SOCK_DGRAM, 0)) == -1 )
{
ioctl(wdfd, WDIOC_SETTIMEOUT, &wdtimeout);
}
+ /* Install signal handler to reap childs */
+ sa.sa_handler = sigchld_handler;
+ sa.sa_flags = 0;
+ sigaction(SIGCHLD, &sa, NULL);
+
while( 1 )
{
/* Check/increment action interval */
#include <math.h>
#include <time.h>
#include <signal.h>
+#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
/* System load error action and treshold */
#define LOAD_TRESHOLD 15.00
-#define LOAD_ACTION "/sbin/reboot"
+#define LOAD_ACTION "/sbin/reboot", "/sbin/reboot"
/* Fallback binary name (passed by makefile) */
#ifndef BINARY
}
/* fork() & execl() helper */
-#define EXEC(x) \
- do { \
- switch(fork()) \
- { \
- case -1: \
- syslog(LOG_CRIT, "Unable to fork child: %s", \
- strerror(errno)); \
- \
- break; \
- \
- case 0: \
- execl(x, NULL); \
- syslog(LOG_CRIT, "Unable to execute action: %s", \
- strerror(errno)); \
- \
- return 1; \
- } \
+#define EXEC(x) \
+ do { \
+ switch(fork()) \
+ { \
+ case -1: \
+ syslog(LOG_CRIT, "Unable to fork child: %s", \
+ strerror(errno)); \
+ break; \
+ \
+ case 0: \
+ execl(x, NULL); \
+ syslog(LOG_CRIT, "Unable to execute action: %s", \
+ strerror(errno)); \
+ return 1; \
+ } \
} while(0)