Mojo::IOLoop::Stream(3User Contributed Perl DocumentaMojo::IOLoop::Stream(3pm)
NAME
Mojo::IOLoop::Stream - Non-blocking I/O stream
SYNOPSIS
use Mojo::IOLoop::Stream;
# Create stream
my $stream = Mojo::IOLoop::Stream->new($handle);
$stream->on(read => sub ($stream, $bytes) {...});
$stream->on(close => sub ($stream) {...});
$stream->on(error => sub ($stream, $err) {...});
# Start and stop watching for new data
$stream->start;
$stream->stop;
# Start reactor if necessary
$stream->reactor->start unless $stream->reactor->is_running;
DESCRIPTION
Mojo::IOLoop::Stream is a container for I/O streams used by
Mojo::IOLoop.
EVENTS
Mojo::IOLoop::Stream inherits all events from Mojo::EventEmitter and
can emit the following new ones.
close
$stream->on(close => sub ($stream) {...});
Emitted if the stream gets closed.
drain
$stream->on(drain => sub ($stream) {...});
Emitted once all data has been written.
error
$stream->on(error => sub ($stream, $err) {...});
Emitted if an error occurs on the stream, fatal if unhandled.
read
$stream->on(read => sub ($stream, $bytes) {...});
Emitted if new data arrives on the stream.
timeout
$stream->on(timeout => sub ($stream) {...});
Emitted if the stream has been inactive for too long and will get
closed automatically.
write
$stream->on(write => sub ($stream, $bytes) {...});
Emitted if new data has been written to the stream.
ATTRIBUTES
Mojo::IOLoop::Stream implements the following attributes.
high_water_mark
my $size = $msg->high_water_mark;
$msg = $msg->high_water_mark(1024);
Maximum size of "write" buffer in bytes before "can_write" returns
false, defaults to 1048576 (1MiB).
reactor
my $reactor = $stream->reactor;
$stream = $stream->reactor(Mojo::Reactor::Poll->new);
Low-level event reactor, defaults to the "reactor" attribute value of
the global Mojo::IOLoop singleton. Note that this attribute is
weakened.
METHODS
Mojo::IOLoop::Stream inherits all methods from Mojo::EventEmitter and
implements the following new ones.
bytes_read
my $num = $stream->bytes_read;
Number of bytes received.
bytes_waiting
my $num = $stream->bytes_waiting;
Number of bytes that have been enqueued with "write" and are waiting to
be written.
bytes_written
my $num = $stream->bytes_written;
Number of bytes written.
can_write
my $bool = $stream->can_write;
Returns true if calling "write" is safe.
close
$stream->close;
Close stream immediately.
close_gracefully
$stream->close_gracefully;
Close stream gracefully.
handle
my $handle = $stream->handle;
Get handle for stream, usually an IO::Socket::IP or IO::Socket::SSL
object.
is_readable
my $bool = $stream->is_readable;
Quick non-blocking check if stream is readable, useful for identifying
tainted sockets.
is_writing
my $bool = $stream->is_writing;
Check if stream is writing.
new
my $stream = Mojo::IOLoop::Stream->new($handle);
Construct a new Mojo::IOLoop::Stream object.
start
$stream->start;
Start or resume watching for new data on the stream.
steal_handle
my $handle = $stream->steal_handle;
Steal "handle" and prevent it from getting closed automatically.
stop
$stream->stop;
Stop watching for new data on the stream.
timeout
my $timeout = $stream->timeout;
$stream = $stream->timeout(45);
Maximum amount of time in seconds stream can be inactive before getting
closed automatically, defaults to 15. Setting the value to 0 will
allow this stream to be inactive indefinitely.
write
$stream = $stream->write($bytes);
$stream = $stream->write($bytes => sub {...});
Enqueue data to be written to the stream as soon as possible, the
optional drain callback will be executed once all data has been
written.
SEE ALSO
Mojolicious, Mojolicious::Guides, <https://mojolicious.org>.
perl v5.36.0 2022-12-22 Mojo::IOLoop::Stream(3pm)
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