}
/**
- * Install the generic signal handler for the given signal number.
+ * Install the given handler for the given signal.
*
* \param sig The number of the signal to catch.
+ * \param handler to be installed, \p SIG_IGN, or \p SIG_DFL.
*
- * \return This function returns 1 on success and \p -E_SIGNAL_SIG_ERR on errors.
+ * This either succeeds or calls exit(EXIT_FAILURE).
*
- * \sa signal(2), sigaction(2).
+ * \sa sigaction(2).
*/
-int para_install_sighandler(int sig)
+void para_sigaction(int sig, void (*handler)(int))
{
struct sigaction act;
PARA_DEBUG_LOG("catching signal %d\n", sig);
- act.sa_handler = &generic_signal_handler;
+ act.sa_handler = handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
if (sig == SIGALRM) {
act.sa_flags |= SA_RESTART;
#endif
}
- if (sigaction(sig, &act, NULL) < 0)
- return -E_SIGNAL_SIG_ERR;
- return 1;
+ if (sigaction(sig, &act, NULL) >= 0)
+ return;
+ PARA_EMERG_LOG("failed to install signal handler for signal %d\n",
+ sig);
+ exit(EXIT_FAILURE);
+}
+
+/**
+ * Install the generic signal handler for the given signal number.
+ *
+ * \param sig The number of the signal to catch.
+ *
+ * \sa signal(2), sigaction(2).
+ */
+void para_install_sighandler(int sig)
+{
+ para_sigaction(sig, &generic_signal_handler);
}
/**