'\"
'\" Generated from file 'memchanapi\&.man' by tcllib/doctools with format 'nroff'
'\" Copyright (c) 2004 Pat Thoyts <patthoyts@users\&.sourceforge\&.net>
'\"
.TH "memchan" 3tcl 2\&.2  "Memory channels"
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.SH NAME
memchan \- C API for creating memory channels
.SH SYNOPSIS
package require \fBTcl \fR
.sp
package require \fBmemchan \fR
.sp
Tcl_Channel \fBMemchan_CreateMemoryChannel\fR (\fITcl_Interp *interp\fR, \fIint initialSize\fR)
.sp
Tcl_Channel \fBMemchan_CreateFifoChannel\fR (\fITcl_Interp *interp\fR)
.sp
void \fBMemchan_CreateFifo2Channel\fR (\fITcl_Interp *interp\fR, \fITcl_Channel *aPtr\fR, \fITcl_Channel *bPtr\fR)
.sp
Tcl_Channel \fBMemchan_CreateNullChannel\fR (\fITcl_Interp *interp\fR)
.sp
Tcl_Channel \fBMemchan_CreateZeroChannel\fR (\fITcl_Interp *interp\fR)
.sp
Tcl_Channel \fBMemchan_CreateRandomChannel\fR (\fITcl_Interp *interp\fR)
.sp
.BE
.SH DESCRIPTION
The \fBmemchan\fR package provides a C API for use by
third-party extension writers\&. This is exposed by a Tcl stubs library
table to reduce version dependency as is available for Tcl itself\&.
.SH COMMAND
.TP
Tcl_Channel \fBMemchan_CreateMemoryChannel\fR (\fITcl_Interp *interp\fR, \fIint initialSize\fR)
.TP
Tcl_Channel \fBMemchan_CreateFifoChannel\fR (\fITcl_Interp *interp\fR)
.TP
void \fBMemchan_CreateFifo2Channel\fR (\fITcl_Interp *interp\fR, \fITcl_Channel *aPtr\fR, \fITcl_Channel *bPtr\fR)
.TP
Tcl_Channel \fBMemchan_CreateNullChannel\fR (\fITcl_Interp *interp\fR)
.TP
Tcl_Channel \fBMemchan_CreateZeroChannel\fR (\fITcl_Interp *interp\fR)
.TP
Tcl_Channel \fBMemchan_CreateRandomChannel\fR (\fITcl_Interp *interp\fR)
.PP
.PP
Each of these functions creates an returns a channel exactly as
described in the Tcl command pages for each of the \fBmemchan\fR
commands\&. The Tcl commands internally call these functions to create
the channels\&.
.PP
The \fBmemchan\fR channel accepts an \fIinitialSize\fR argument to
permit pre-allocating space for the internal buffer\&. Normally this may
be set to 0\&.
.PP
The \fBfifo2\fR API function looks a little different because it must
return two linked channels\&.
.SH "SEE ALSO"
Tcl_GetChannelName
.SH COPYRIGHT
.nf
Copyright (c) 2004 Pat Thoyts <patthoyts@users\&.sourceforge\&.net>

.fi