Sentinel mode: restart the program on certain conditions

* Makefile.am: Create the ChangeLog file from git log.
* configure.ac: Request git2chg
* src/com_start.c: Use sigaction instead of signal.
* src/genrc.8: Document new options.
* src/genrc.c: New options --restart-on-exit and --restart-on-signal.
* src/genrc.h (str_to_sig, str_to_int): New prototypes.
(add_restart_condition): New prototype.
* src/sentinel.c (restart_on, add_restart_condition):
(check_failure_rate): New functions.
(wait_loop): Return if restart is requested.
(sentinel): Restart the program if needed.

1 files changed, 10 insertions, 0 deletions

diff --git a/src/genrc.h b/src/genrc.h
index 9842016..c6ee57b 100644
--- a/src/genrc.h
+++ b/src/genrc.h
@@ -63,6 +63,9 @@ pid_t strtopid(char const *str);
 int pid_is_running(pid_t pid);
 
 void runas(void);
+int str_to_sig(char const *);
+int str_to_int(char const *);
+
 
 enum {
         MATCH_REGEX,  /* extended POSIX regexp match (default) */
@@ -109,7 +112,14 @@ void match_pcre_free(PROCSCANBUF buf);
 int match_pcre(PROCSCANBUF buf, char const *arg);
 
 
+enum {
+        RESTART_ON_EXIT,
+        RESTART_ON_SIGNAL
+};
 
+void add_restart_condition(int type, char const *arg);
+
+
 struct genrc_pid_closure {
         char const *name;
         int (*pid)(struct genrc_pid_closure *, PIDLIST *);