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120 lines
2.8 KiB
120 lines
2.8 KiB
7 years ago
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diff -ur -x configure at-3.1.13.orig/atd.c at-3.1.13/atd.c
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--- at-3.1.13.orig/atd.c 2011-11-16 11:30:22.424764253 -0500
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+++ at-3.1.13/atd.c 2011-11-16 16:41:12.102831656 -0500
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@@ -815,6 +815,54 @@
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return next_job;
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}
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+#ifdef HAVE_CLOCK_GETTIME
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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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@@ -835,7 +883,6 @@
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struct sigaction act;
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struct passwd *pwe;
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struct group *ge;
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-
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#ifdef WITH_SELINUX
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selinux_enabled=is_selinux_enabled();
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#endif
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@@ -912,7 +959,7 @@
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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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@@ -935,13 +982,15 @@
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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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+
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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 -ur -x configure at-3.1.13.orig/config.h.in at-3.1.13/config.h.in
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--- at-3.1.13.orig/config.h.in 2011-11-16 11:30:22.424764253 -0500
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+++ at-3.1.13/config.h.in 2011-11-16 16:32:44.485426754 -0500
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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 `clock_gettime' 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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diff -ur -x configure at-3.1.13.orig/configure.ac at-3.1.13/configure.ac
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--- at-3.1.13.orig/configure.ac 2011-11-16 11:30:22.425764254 -0500
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+++ at-3.1.13/configure.ac 2011-11-16 16:31:29.791561747 -0500
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@@ -274,5 +274,9 @@
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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_CONFIG_FILES(Makefile atrun atd.8 atrun.8 at.1 at.allow.5 batch)
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AC_OUTPUT
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