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diff -up at-3.1.14/atd.c.timers at-3.1.14/atd.c
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--- at-3.1.14/atd.c.timers 2013-12-02 11:03:01.250080057 +0100
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+++ at-3.1.14/atd.c 2013-12-02 11:06:15.560243498 +0100
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@@ -831,6 +831,54 @@ run_loop()
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return next_job;
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}
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+#ifdef HAVE_TIMER_CREATE
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+timer_t timer;
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+struct itimerspec timeout;
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+
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+void timer_setup()
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+{
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+ struct sigevent sev;
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+
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+ sev.sigev_notify = SIGEV_SIGNAL;
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+ sev.sigev_signo = SIGHUP;
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+ sev.sigev_value.sival_ptr = &timer;
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+
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+ memset(&timeout, 0, sizeof(timeout));
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+
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+ if (timer_create(CLOCK_REALTIME, &sev, &timer) < 0)
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+ pabort("unable to create timer");
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+}
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+
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+time_t atd_gettime()
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+{
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+ struct timespec curtime;
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+
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+ clock_gettime(CLOCK_REALTIME, &curtime);
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+
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+ return curtime.tv_sec;
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+}
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+
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+void atd_setalarm(time_t next)
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+{
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+ timeout.it_value.tv_sec = next;
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+ timer_settime(timer, TIMER_ABSTIME, &timeout, NULL);
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+ pause();
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+}
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+#else
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+void timer_setup()
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+{
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+}
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+
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+time_t atd_gettime()
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+{
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+ return time(NULL);
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+}
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+
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+void atd_setalarm(time_t next)
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+{
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+ sleep(next - atd_gettime());
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+}
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+#endif
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/* Global functions */
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int
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@@ -936,7 +984,7 @@ main(int argc, char *argv[])
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sigaction(SIGCHLD, &act, NULL);
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if (!run_as_daemon) {
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- now = time(NULL);
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+ now = atd_gettime();
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run_loop();
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exit(EXIT_SUCCESS);
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}
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@@ -959,13 +1007,14 @@ main(int argc, char *argv[])
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act.sa_handler = set_term;
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sigaction(SIGINT, &act, NULL);
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+ timer_setup();
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daemon_setup();
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do {
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- now = time(NULL);
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+ now = atd_gettime();
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next_invocation = run_loop();
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if (next_invocation > now) {
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- sleep(next_invocation - now);
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+ atd_setalarm(next_invocation);
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}
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} while (!term_signal);
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daemon_cleanup();
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diff -up at-3.1.14/config.h.in.timers at-3.1.14/config.h.in
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--- at-3.1.14/config.h.in.timers 2013-12-02 11:00:27.000000000 +0100
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+++ at-3.1.14/config.h.in 2013-12-02 11:02:06.521033976 +0100
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@@ -38,6 +38,9 @@
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/* Define to 1 if you have the `getloadavg' function. */
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#undef HAVE_GETLOADAVG
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+/* Define to 1 if you have the `timer_create' function. */
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+#undef HAVE_TIMER_CREATE
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+
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/* Define to 1 if you have the <getopt.h> header file. */
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#undef HAVE_GETOPT_H
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ce9709 |
diff -up at-3.1.14/configure.ac.timers at-3.1.14/configure.ac
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--- at-3.1.14/configure.ac.timers 2013-12-02 11:00:27.000000000 +0100
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+++ at-3.1.14/configure.ac 2013-12-02 11:02:45.217066560 +0100
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ce9709 |
@@ -254,6 +254,10 @@ AC_CHECK_LIB(selinux, is_selinux_enabled
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AC_SUBST(SELINUXLIB)
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AC_SUBST(WITH_SELINUX)
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+dnl check for POSIX timer functions
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+AC_SEARCH_LIBS([timer_create],[rt])
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+AC_CHECK_FUNCS([timer_create])
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+
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AC_MSG_CHECKING(groupname to run under)
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AC_ARG_WITH(daemon_groupname,
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[ --with-daemon_groupname=DAEMON_GROUPNAME Groupname to run under (default daemon) ],
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