Asyncronous I/O problem?

skicy · 11-27-2005, 04:15 AM

I just start the linux system programing. But I get a problem. When I use the aio_read or others asyncronous functions, there will be an error when compiling. The error is " Undefined reference to aio_read".
Thanks.

paulsm4 · 11-27-2005, 09:00 PM

Try adding "-lrt" to your link command

skicy · 11-28-2005, 12:10 AM

Thanks very much! But can you tell me what's the meaning of "-lrt".

paulsm4 · 11-28-2005, 12:26 AM

"-lrt" means "include /usr/lib/librt.XX in the program link".

"librt" stands for "real time library". I don't know whether 'real time" is a good name or not, but that happens to be where the AIO stuff goes.

'Hope that helps .. PSM

skicy · 11-28-2005, 03:02 AM

hehe! Thank you