/** Launches a thread that periodically checks if any of the connections has timed out
@param arg Must contain a pointer to a string containing the IP adress of the client to check to check
@todo Also pass MAC adress?
@todo This thread loops infinitely, need a watchdog to verify that it is still running?
*/
void
thread_client_timeout_check(const void *arg)
{
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
pthread_mutex_t cond_mutex = PTHREAD_MUTEX_INITIALIZER;
struct timespec timeout;
while (1) {
/* Sleep for config.checkinterval seconds... */
timeout.tv_sec = time(NULL) + config_get_config()->checkinterval;
timeout.tv_nsec = 0;
/* Mutex must be locked for pthread_cond_timedwait... */
pthread_mutex_lock(&cond_mutex);
/* Thread safe "sleep" */
pthread_cond_timedwait(&cond, &cond_mutex, &timeout);
/* No longer needs to be locked */
pthread_mutex_unlock(&cond_mutex);
debug(LOG_DEBUG, "Running fw_counter()");
fw_sync_with_authserver();
}
}
/** Launches a thread that periodically checks if any of the connections has timed out
@param arg Must contain a pointer to a string containing the IP adress of the client to check to check
@todo Also pass MAC adress?
@todo This thread loops infinitely, need a watchdog to verify that it is still running?
*/
void
thread_client_timeout_check(const void *arg)
{
pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
pthread_mutex_t cond_mutex = PTHREAD_MUTEX_INITIALIZER;
struct timespec timeout;
/*open named pipes to/from mysql server*/
FILE * mysql_request = fopen("/tmp/wifidog_mysql_request_fifo","w");
FILE * mysql_response = fopen("/tmp/wifidog_mysql_response_fifo","r");
// char mysql_buf[256];
/*
// set response fifo nonblocking,..
int fd=fileno(mysql_response);
int flags = fcntl(fd, F_GETFL, 0);
fcntl(fd, F_SETFL, flags | O_NONBLOCK); //!!?? write ahelper function for this, as we might have to change this quite often,..
debug(LOG_DEBUG,"mysql filedescriptors request: %d response: %d", fileno(mysql_request),fd);
// empty the response fifo
while (NULL != fgets(mysql_buf, sizeof(mysql_buf), mysql_response) ) {
debug(LOG_DEBUG,"unexpected mysql response: %s", mysql_buf);
}
// test mysql with a simple query
fputs("SELECT 1;\n", mysql_request);
fflush(mysql_request);
sleep(1); //!!?? write a helper functions that waits up to timeout for an response, or use a timeout instead of nonblocking?, or use blocking(together with column header it would be ok)
if ( NULL == fgets(mysql_buf, sizeof(mysql_buf), mysql_response) ){
fputs("\nexit\n", mysql_request);
fflush(mysql_request);
debug(LOG_ERR,"mysql does not work: reverting to http-reauthentication");
mysql_request = NULL;
mysql_response = NULL;
}
else debug(LOG_DEBUG,"mysql response was: %s",mysql_buf);
*/
while (1) {
/* Sleep for config.checkinterval seconds... */
timeout.tv_sec = time(NULL) + config_get_config()->checkinterval;
timeout.tv_nsec = 0;
/* Mutex must be locked for pthread_cond_timedwait... */
pthread_mutex_lock(&cond_mutex);
/* Thread safe "sleep" */
pthread_cond_timedwait(&cond, &cond_mutex, &timeout);
/* No longer needs to be locked */
pthread_mutex_unlock(&cond_mutex);
debug(LOG_DEBUG, "Running fw_counter()");
fw_sync_with_authserver(mysql_request, mysql_response);
}
}