multithread branch
select funtion used
add the gitignore
pthread method works,pipe is used as filedescriptor that trigger select
two devices use two pipe, it works
fit the problem that the timeval of select() changes in linux
according to unp ch6,refactor the select() call,and now it can afford multi client.but it seems there are some bug here.
the problem is if an connection fin,the select() becomes unblock
fix the unblock bug,that's if read() returns 0,it means the client has finished
add some comments,it seems work well
delete the apue.h and unp.h'
redefine netToken
add echo from pthread to associated sockfd.Need to rewrite to simplify the codes
reform the code
change the position of handle output,for nready--