#include <sys/socket.h>
#include <netdb.h>
+#include <pthread.h>
+
#include "plugin.h"
#include "configfile.h"
+#if HAVE_STATGRAB_H
+# include <statgrab.h>
+#endif
+
/*
* Global variables
*/
static int loop = 0;
-static void sigIntHandler (int signal)
+static void *do_flush (void *arg)
+{
+ INFO ("Flushing all data.");
+ plugin_flush_all (-1);
+ INFO ("Finished flushing all data.");
+ pthread_exit (NULL);
+ return NULL;
+}
+
+static void sig_int_handler (int signal)
{
loop++;
}
-static void sigTermHandler (int signal)
+static void sig_term_handler (int signal)
{
loop++;
}
+static void sig_usr1_handler (int signal)
+{
+ pthread_t thread;
+ pthread_attr_t attr;
+
+ /* flushing the data might take a while,
+ * so it should be done asynchronously */
+ pthread_attr_init (&attr);
+ pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
+ pthread_create (&thread, &attr, do_flush, NULL);
+}
+
static int init_hostname (void)
{
const char *str;
str = global_option_get ("Hostname");
if (str != NULL)
{
- strncpy (hostname_g, str, sizeof (hostname_g));
- hostname_g[sizeof (hostname_g) - 1] = '\0';
+ sstrncpy (hostname_g, str, sizeof (hostname_g));
return (0);
}
if (ai_ptr->ai_canonname == NULL)
continue;
- strncpy (hostname_g, ai_ptr->ai_canonname, sizeof (hostname_g));
- hostname_g[sizeof (hostname_g) - 1] = '\0';
+ sstrncpy (hostname_g, ai_ptr->ai_canonname, sizeof (hostname_g));
break;
}
" General:\n"
" -C <file> Configuration file.\n"
" Default: "CONFIGFILE"\n"
+ " -t Test config and exit.\n"
" -P <file> PID-file.\n"
" Default: "PIDFILE"\n"
#if COLLECT_DAEMON
" -f Don't fork to the background.\n"
#endif
+ " -h Display help (this message)\n"
"\nBuiltin defaults:\n"
" Config-File "CONFIGFILE"\n"
" PID-File "PIDFILE"\n"
int main (int argc, char **argv)
{
- struct sigaction sigIntAction;
- struct sigaction sigTermAction;
+ struct sigaction sig_int_action;
+ struct sigaction sig_term_action;
+ struct sigaction sig_usr1_action;
+ struct sigaction sig_pipe_action;
char *configfile = CONFIGFILE;
int test_config = 0;
const char *basedir;
#if COLLECT_DAEMON
- struct sigaction sigChldAction;
+ struct sigaction sig_chld_action;
pid_t pid;
int daemonize = 1;
#endif
/*
* fork off child
*/
- memset (&sigChldAction, '\0', sizeof (sigChldAction));
- sigChldAction.sa_handler = SIG_IGN;
- sigaction (SIGCHLD, &sigChldAction, NULL);
+ memset (&sig_chld_action, '\0', sizeof (sig_chld_action));
+ sig_chld_action.sa_handler = SIG_IGN;
+ sigaction (SIGCHLD, &sig_chld_action, NULL);
if (daemonize)
{
} /* if (daemonize) */
#endif /* COLLECT_DAEMON */
+ memset (&sig_pipe_action, '\0', sizeof (sig_pipe_action));
+ sig_pipe_action.sa_handler = SIG_IGN;
+ sigaction (SIGPIPE, &sig_pipe_action, NULL);
+
/*
* install signal handlers
*/
- memset (&sigIntAction, '\0', sizeof (sigIntAction));
- sigIntAction.sa_handler = sigIntHandler;
- sigaction (SIGINT, &sigIntAction, NULL);
+ memset (&sig_int_action, '\0', sizeof (sig_int_action));
+ sig_int_action.sa_handler = sig_int_handler;
+ if (0 != sigaction (SIGINT, &sig_int_action, NULL)) {
+ char errbuf[1024];
+ ERROR ("Error: Failed to install a signal handler for signal INT: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (1);
+ }
- memset (&sigTermAction, '\0', sizeof (sigTermAction));
- sigTermAction.sa_handler = sigTermHandler;
- sigaction (SIGTERM, &sigTermAction, NULL);
+ memset (&sig_term_action, '\0', sizeof (sig_term_action));
+ sig_term_action.sa_handler = sig_term_handler;
+ if (0 != sigaction (SIGTERM, &sig_term_action, NULL)) {
+ char errbuf[1024];
+ ERROR ("Error: Failed to install a signal handler for signal TERM: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (1);
+ }
+
+ memset (&sig_usr1_action, '\0', sizeof (sig_usr1_action));
+ sig_usr1_action.sa_handler = sig_usr1_handler;
+ if (0 != sigaction (SIGUSR1, &sig_usr1_action, NULL)) {
+ char errbuf[1024];
+ ERROR ("Error: Failed to install a signal handler for signal USR1: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (1);
+ }
/*
* run the actual loops