io.pir

# Copyright (C) 2001-2008, Parrot Foundation.

=head1 NAME

examples/pir/io.pir - IO Example

=head1 SYNOPSIS

    % ./parrot examples/pir/io.pir

=head1 DESCRIPTION

Simple open/seek/write/close on a file. After the file is written it is read in again
and printed to STDOUT.
You should check where the file is going to be before you run this.

=cut

.loadlib 'io_ops' # convenient I/O dynamic opcodes

.sub 'example' :main
    .local string test_fn
    test_fn = "tmp_example_io.tmp"
    $P0 = open test_fn, 'w'
    seek $P0, 300, 0
    # 64bit version of seek with high 32bits = 0
    #seek $IO, $P0, 0, 400, 0
    print $P0, "test1\n"
    print $P0, "test2\n"
    print $P0, "test3\n"
    seek $P0, 0, 0
    print $P0, "test4\n"
    print $P0, "test5\n"
    close $P0

    $P0 = open test_fn, 'r'
    $S0 = read $P0, 1024
    print $S0

    # now clean up after ourselves.
    $P1 = new "OS"
    $P1."rm"(test_fn)

.end

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