.TH io_tryreadtimeout 3 .SH NAME io_tryreadtimeout \- read from a descriptor without blocking .SH SYNTAX .B #include int \fBio_tryreadtimeout\fP(int64 fd,char* buf,int64 len); .SH DESCRIPTION io_tryreadtimeout is identical to io_tryread, with the following exception: if .RS 0 .IP \[bu] 3 io_tryread returns -1 (the descriptor is not ready for reading), and .IP \[bu] the descriptor has a timeout, and .IP \[bu] the read attempt was after the descriptor's timeout, .RE then io_tryreadtimeout instead returns -2, with errno set to ETIMEDOUT. .SH "SEE ALSO" io_nonblock(3), io_waitread(3), io_tryread(3)