data at fifo's receiving end has arrived?

**quickNitin** · 5th November 2006, 09:22

for the question 1, ihave found there is a state based system call select() which gives the state of file descriptors. how it works i have to see? but again , it is not event based.
Is there any system call which will let kerenel tell me status of fd whenevr some event occurs which i could connect to slot.

**quickNitin** · 5th November 2006, 09:26

yes wyotsa, you have understood one of them. It strkied me as one of solution. I hadnot implemented this till now as i not much knowledgeable about signals.

**wysota** · 5th November 2006, 10:05

Originally Posted by quickNitin

for the question 1, ihave found there is a state based system call select() which gives the state of file descriptors. how it works i have to see? but again , it is not event based.

Select() polls filedescriptors for their state, so it's not suitable for you if you want to be informed about the event.

Is there any system call which will let kerenel tell me status of fd whenevr some event occurs which i could connect to slot.

Not likely. You could check out file monitors (FAM) which have support in the kernel but I don't know if it works for pipes.

About unix signals - check out manual for signal and sigaction.