io_tryreadtimeout − read from a descriptor without blocking
#include <libowfat/io.h>
int io_tryreadtimeout(int64 fd,char* buf,int64 len);
io_tryreadtimeout is identical to io_tryread, with the following exception: if
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io_tryread returns -1 (the descriptor is not ready for reading), and | ||
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the descriptor has a timeout, and | ||
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the read attempt was after the descriptor’s timeout, |
then io_tryreadtimeout instead returns -2, with errno set to ETIMEDOUT.
io_nonblock(3), io_waitread(3), io_tryread(3)