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U:RDoc::NormalModule[iI"DRbProtocol:ETI"DRb::DRbProtocol;T0o:RDoc::Markup::Document:@parts[o;;[o:RDoc::Markup::Paragraph;[I"DModule managing the underlying network protocol(s) used by drb.;To:RDoc::Markup::BlankLine�o;	;[I"FBy default, drb uses the DRbTCPSocket protocol.  Other protocols ;TI"Ican be defined.  A protocol must define the following class methods:;T@o:RDoc::Markup::Verbatim;[I"J[open(uri, config)] Open a client connection to the server at +uri+,
;TI"J                    using configuration +config+.  Return a protocol
;TI"7                    instance for this connection.
;TI"B[open_server(uri, config)] Open a server listening at +uri+,
;TI"H                           using configuration +config+.  Return a
;TI"E                           protocol instance for this listener.
;TI"I[uri_option(uri, config)] Take a URI, possibly containing an option
;TI"I                          component (e.g. a trailing '?param=val'),
;TI"A                          and return a [uri, option] tuple.
;T:@format0o;	;[
I"GAll of these methods should raise a DRbBadScheme error if the URI ;TI"Ddoes not identify the protocol they support (e.g. "druby:" for ;TI"Gthe standard Ruby protocol).  This is how the DRbProtocol module, ;TI"Ggiven a URI, determines which protocol implementation serves that ;TI"protocol.;T@o;	;[I"BThe protocol instance returned by #open_server must have the ;TI"following methods:;T@o:RDoc::Markup::List:
@type:
LABEL:@items[o:RDoc::Markup::ListItem:@label[I"accept;T;[o;	;[I"@Accept a new connection to the server.  Returns a protocol ;TI"7instance capable of communicating with the client.;To;;[I"
close;T;[o;	;[I"!Close the server connection.;To;;[I"uri;T;[o;	;[I"!Get the URI for this server.;T@o;	;[I"MThe protocol instance returned by #open must have the following methods:;T@o;
;;;[	o;;[I"'send_request (ref, msg_id, arg, b);T;[o;	;[I"FSend a request to +ref+ with the given message id and arguments. ;TI"IThis is most easily implemented by calling DRbMessage.send_request, ;TI"Aproviding a stream that sits on top of the current protocol.;To;;[I"recv_reply;T;[o;	;[	I"JReceive a reply from the server and return it as a [success-boolean, ;TI"Dreply-value] pair.  This is most easily implemented by calling ;TI"@DRb.recv_reply, providing a stream that sits on top of the ;TI"current protocol.;To;;[I"alive?;T;[o;	;[I"$Is this connection still alive?;To;;[I"
close;T;[o;	;[I"Close this connection.;T@o;	;[I"IThe protocol instance returned by #open_server().accept() must have ;TI"the following methods:;T@o;
;;;[o;;[I"recv_request;T;[o;	;[	I"FReceive a request from the client and return a [object, message, ;TI"Eargs, block] tuple.  This is most easily implemented by calling ;TI"EDRbMessage.recv_request, providing a stream that sits on top of ;TI"the current protocol.;To;;[I"send_reply(succ, result);T;[o;	;[I"BSend a reply to the client.  This is most easily implemented ;TI"Dby calling DRbMessage.send_reply, providing a stream that sits ;TI"$on top of the current protocol.;To;;[I"
close;T;[o;	;[I"Close this connection.;T@o;	;[I"DA new protocol is registered with the DRbProtocol module using ;TI"the add_protocol method.;T@o;	;[I"HFor examples of other protocols, see DRbUNIXSocket in drb/unix.rb, ;TI"Fand HTTP0 in sample/http0.rb and sample/http0serv.rb in the full ;TI"drb distribution.;T:
@fileI"lib/drb/drb.rb;T:0@omit_headings_from_table_of_contents_below0o;;[�;@�;0;0;0[�[�[�[[I"
class;T[[:public[	[I"add_protocol;TI"lib/drb/drb.rb;T[I"	open;T@�[I"open_server;T@�[I"uri_option;T@�[:protected[�[:private[�[I"
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