1memchan(n)                                                          memchan(n)
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5______________________________________________________________________________
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NAME

8       memchan - C API for creating memory channels
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SYNOPSIS

11       package require Tcl
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13       package require memchan
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15       Tcl_Channel  Memchan_CreateMemoryChannel  (Tcl_Interp *interp, int ini‐
16       tialSize)
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18       Tcl_Channel Memchan_CreateFifoChannel (Tcl_Interp *interp)
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20       void Memchan_CreateFifo2Channel (Tcl_Interp *interp, Tcl_Channel *aPtr,
21       Tcl_Channel *bPtr)
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23       Tcl_Channel Memchan_CreateNullChannel (Tcl_Interp *interp)
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25       Tcl_Channel Memchan_CreateZeroChannel (Tcl_Interp *interp)
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27       Tcl_Channel Memchan_CreateRandomChannel (Tcl_Interp *interp)
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29______________________________________________________________________________
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DESCRIPTION

32       The  memchan  package provides a C API for use by third-party extension
33       writers. This is exposed by a Tcl stubs library table to reduce version
34       dependency as is available for Tcl itself.
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COMMAND

37       Tcl_Channel  Memchan_CreateMemoryChannel  (Tcl_Interp *interp, int ini‐
38       tialSize)
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40       Tcl_Channel Memchan_CreateFifoChannel (Tcl_Interp *interp)
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42       void Memchan_CreateFifo2Channel (Tcl_Interp *interp, Tcl_Channel *aPtr,
43       Tcl_Channel *bPtr)
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45       Tcl_Channel Memchan_CreateNullChannel (Tcl_Interp *interp)
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47       Tcl_Channel Memchan_CreateZeroChannel (Tcl_Interp *interp)
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49       Tcl_Channel Memchan_CreateRandomChannel (Tcl_Interp *interp)
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51       Each  of  these  functions  creates  an  returns  a  channel exactly as
52       described in the Tcl command pages for each of  the  memchan  commands.
53       The  Tcl  commands  internally call these functions to create the chan‐
54       nels.
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56       The memchan channel accepts an initialSize argument to permit pre-allo‐
57       cating space for the internal buffer. Normally this may be set to 0.
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59       The  fifo2 API function looks a little different because it must return
60       two linked channels.
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SEE ALSO

63       Tcl_GetChannelName
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66       Copyright (c) 2004 Pat Thoyts <patthoyts@users.sourceforge.net>
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71Memory channels                       2.2                           memchan(n)
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