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Man Pages


Manual Reference Pages  -  TERMKEY_PUSH_BYTES (3)

NAME

termkey_push_bytes - supply more bytes to the input buffer

CONTENTS

Synopsis
Description

SYNOPSIS


#include <termkey.h> 

size_t termkey_push_bytes(TermKey *tk, const char *bytes, size_t len);

Link with -ltermkey.

DESCRIPTION

termkey_push_bytes() allows more bytes of input to be supplied directly into the input buffer of the termkey(7) instance. If there was no buffer space remaining then -1 is returned with errno set to ENOMEM.

This function, along with termkey_getkey(3), makes it possible to use the termkey instance with a source of bytes other than from reading a filehandle.

For synchronous usage, termkey_waitkey(3) performs the input blocking task. For use against a regular stream filehandle that supports read(2), see termkey_advisereadable(3).

RETURN VALUE

termkey_push_bytes() the number of bytes consumed from the input (which may be smaller than the length provided, if the buffer runs out of space) or -1 cast to size_t if an error occurs, in which case errno is set accordingly.

SEE ALSO

termkey_getkey(3), termkey_advisereadable(3), termkey(7)
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