input-port
Factor handbook » Input and output » Non-blocking I/O implementation

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Vocabulary
io.ports

Class description
The class of ports implementing the input stream protocol.

Definition

IN: io.ports

TUPLE: input-port < buffered-port ;

Methods

USING: alien classes io io.ports io.ports.private kernel libc ;

M: input-port stream-read-partial-unsafe
    [ c-ptr check-instance swap ] dip prepare-read read-step
    [ swap [ memcpy ] keep ] [ 2drop 0 ] if* ;


USING: alien classes io io.ports io.ports.private kernel ;

M: input-port stream-read-unsafe
    [ c-ptr check-instance swap ] dip prepare-read 0 read-loop ;


USING: io io.ports io.ports.private kernel sequences ;

M: input-port stream-read-until
    2dup read-until-step dup
    [ 2nipd ] [
        over [
            drop BV{ } like [ read-until-loop ] keep B{ } like
            swap
        ] [ 2nipd ] if
    ] if ;


USING: accessors destructors io io.buffers io.ports kernel ;

M: input-port stream-read1
    check-disposed dup wait-to-read
    [ drop f ] [ buffer>> buffer-pop ] if ; inline


USING: accessors destructors io io.buffers io.ports
io.ports.private kernel ;

M: input-port stream-seek
    check-disposed do-seek-relative
    [ buffer>> 0 swap buffer-reset ] [ handle>> seek-handle ] bi
    ;


USING: destructors io io.ports io.ports.private math ;

M: input-port stream-tell check-disposed port-tell - ;