I have heard conflicting stories about whether the time shift is significant. Jeff Bisbee posted that systems based on UTC don't see shifts in time() when DST/Standard arrive. Matt Cashner is convinced that NTP prevents the problem from occurring. It's an area I admit knowing very little about, and I'm loath to bring down my development machine to simulate Daylight Savings/Standard time shifts, manually, or by tricking NTP. I've made some small changes, of perhaps five minutes either way, and discovered that times() does not behave as claimed.
Perhaps I can ask the question slightly differently. Is it acceptable for POE to fail to deliver sigchild because of a system time change?
Here is a simple way of illustrating this, start a process using POE::Wheel::Run, then immediately set the system time backwards for two hours. I have observed that in this case sigchild will not be delivered until two hours later. This is somewhat of a nasty surprise, wouldn't you say?
Pete
