Chronic

"Ping" constraint was introduced. The constraint sends a single ICMP ping to a given address, and is considered met if an ICMP packet is successfully received. "Concurrent'' constraint was introduced. The constraint keeps a tab on the number of concurrent processes of a specified application. A "safe_sleep'' time was introduced at the end of the scheduler's while() loop. This stops the scheduler to go into a tight loop every time there are a few microseconds of latency between task_wait and Freq constraint.

Syslog support has been introduced. SIGHUP handling has been augmented
to defer signals during task execution, since tasks can't be safely
interrupted. The scheduling algorithm has been improved. emerge-later,
an application which adds packages to be emerged (using Gentoo's package
manager, emerge) to the system crontab as only_once tasks, has been
added to the distribution.

SIGHUP handling was introduced in chronicd. On
receipt of a HUP signal, chronicd will drop the
existing schedule, re-read config files, and start
over again. The capability to run certain tasks
"only once" was added to the Scheduler.
Notification functionality was augmented to inform
the user of failures.

An "InXs" constraint that combines the Inactivity constraint and the Xscreensaver constraint using an OR relationship was included. The scheduler wait behaviour was changed and now waits for a maximum of 10 minutes to avoid lost time due to hibernation or suspension of processes. Support for email notifications for successfully scheduled tasks was implemented. Some minor bugs were fixed and more documentation was added.

This release contains some bugfixes and a new "Xscreensaver" constraint, that is met when Xscreensaver stays locked or blanked for a specified amount of time.