#include "shash.h"
#include "socket-util.h"
#include "util.h"
-
-#define THIS_MODULE VLM_fatal_signal
#include "vlog.h"
+VLOG_DEFINE_THIS_MODULE(fatal_signal)
+
/* Signals to catch. */
static const int fatal_signals[] = { SIGTERM, SIGINT, SIGHUP, SIGALRM };
stored_sig_nr = sig_nr;
}
+/* Check whether a fatal signal has occurred and, if so, call the fatal signal
+ * hooks and exit.
+ *
+ * This function is called automatically by poll_block(), but specialized
+ * programs that may not always call poll_block() on a regular basis should
+ * also call it periodically. (Therefore, any function with "block" in its
+ * name should call fatal_signal_run() each time it is called, either directly
+ * or through poll_block(), because such functions can only used by specialized
+ * programs that can afford to block outside their main loop around
+ * poll_block().)
+ */
void
fatal_signal_run(void)
{
fatal_signal_add_hook(unlink_files, cancel_files, NULL, true);
}
- if (!shash_find(&files, file)) {
- shash_add(&files, file, NULL);
- }
+ shash_add_once(&files, file, NULL);
}
/* Unregisters 'file' from being unlinked when the program terminates via
static void
unlink_files(void *aux OVS_UNUSED)
{
- do_unlink_files();
+ do_unlink_files();
}
static void