use strace,the system alerts:Resource temporarily unavailable
recv(8, 0x9bfb880, 55, 0) = -1 EAGAIN (Resource temporarily unavailable)

it appears that recv reads data when the data is not prepared.
it does not check if the data is available



Edited 1 time(s). Last edit at 08/27/2009 05:11AM by wangbin579.