/usr/share/gap/pkg/scscp/lib/xstream.gd is in gap-scscp 2.1.4+ds-3.
This file is owned by root:root, with mode 0o644.
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#W xstream.gd The SCSCP package Alexander Konovalov
#W Steve Linton
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#C IsInputOutputTCPStream ........... category of input/output TCP streams
##
## <#GAPDoc Label="IsInputOutputTCPStream">
## <ManSection>
## <Filt Name="IsInputOutputTCPStream" />
## <Description>
## <Ref Filt="IsInputOutputTCPStream"/> is a subcategory of
## <Ref BookName="ref" Filt="IsInputOutputStream"/>.
## Streams in the category <Ref Filt="IsInputOutputTCPStream"/>
## are created with the help of the function
## <Ref Func="InputOutputTCPStream" Label="for client" /> with
## one or two arguments dependently on whether they will be
## used in the client or server mode. Examples of their creation
## and usage will be given in subsequent sections.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareCategory( "IsInputOutputTCPStream", IsInputOutputStream );
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##
#R IsInputOutputTCPStreamRep .. representation of input/output TCP streams
##
## <#GAPDoc Label="IsInputOutputTCPStreamRep">
##
## <ManSection>
## <Filt Name="IsInputOutputTCPStreamRep" />
## <Description>
## This is the representation used for streams in the
## category <Ref Filt="IsInputOutputTCPStream"/>.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareRepresentation( "IsInputOutputTCPStreamRep",
IsPositionalObjectRep, [ ] );
InputOutputTCPStreamDefaultType :=
NewType( StreamsFamily,
IsInputOutputTCPStreamRep and IsInputOutputTCPStream);
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##
#F InputOutputTCPStream ............... returns an input/output TCP stream
##
## <#GAPDoc Label="InputOutputTCPStream">
##
## <ManSection>
## <Func Name="InputOutputTCPStream" Label="for server" Arg="desc" />
## <Func Name="InputOutputTCPStream" Label="for client" Arg="host port" />
## <Returns>
## stream
## </Returns>
## <Description>
## The one-argument version must be called from the &SCSCP; server.
## Its argument <A>desc</A> must be a socket descriptor obtained using
## <Ref BookName="IO" Func="IO_accept"/> function from the &IO; package
## (see the example below). It returns a stream in the category
## <Ref Filt="IsInputOutputTCPStream"/> which will use this socket to
## accept incoming connections.
## In most cases, the one-argument version is called automatically
## from <Ref Func="RunSCSCPserver"/> rather then manually.
## <P/>
## The version with two arguments, a string <A>host</A> and an integer
## <A>port</A>, must be called from the &SCSCP; client. It returns a stream
## in the category <Ref Filt="IsInputOutputTCPStream"/> which will be used
## by the client for communication with the &SCSCP; server running at
## hostname <A>host</A> on port <A>port</A>.
## In most cases, the two-argument version is called automatically from
## the higher level functions, for example, <Ref Func="EvaluateBySCSCP"/>.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction ( "InputOutputTCPStream" );
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##
#F SCSCPwait
##
## <#GAPDoc Label="SCSCPwait">
##
## <ManSection>
## <Func Name="SCSCPwait" Arg="stream [timeout]"/>
## <Returns>
## nothing
## </Returns>
## <Description>
## This function may be used by the &SCSCP; client to wait
## (using <Ref BookName="IO" Func="IO_select" />)
## until the result of the procedure call will be
## available from <A>stream</A>. By default the timeout is
## one hour, to specify another value give it as the optional
## second argument in seconds. See the end of this chapter
## for the example.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareGlobalFunction ( "SCSCPwait" );
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##
#E
##
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