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memchan(3tcl) memchan(3tcl) 





NAME


memchan - C API for creating memory channels






SYNOPSIS


package require Tcl 


package require memchan 


Tcl_Channel Memchan_CreateMemoryChannel (Tcl_Interp
    *interp, int initialSize)


Tcl_Channel Memchan_CreateFifoChannel (Tcl_Interp
    *interp)


void Memchan_CreateFifo2Channel (Tcl_Interp *interp,
    Tcl_Channel *aPtr, Tcl_Channel *bPtr)


Tcl_Channel Memchan_CreateNullChannel (Tcl_Interp
    *interp)


Tcl_Channel Memchan_CreateZeroChannel (Tcl_Interp
    *interp)


Tcl_Channel Memchan_CreateRandomChannel (Tcl_Interp
    *interp)










DESCRIPTION


The memchan 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.






COMMAND



  

  

  

  

  

  

  

  

  

  

  

  




Each of these functions creates an returns a channel exactly as
    described in the Tcl command pages for each of the memchan commands.
    The Tcl commands internally call these functions to create the channels.


The memchan channel accepts an initialSize argument
    to permit pre-allocating space for the internal buffer. Normally this may be
    set to 0.


The fifo2 API function looks a little different because it
    must return two linked channels.






SEE ALSO


Tcl_GetChannelName






COPYRIGHT


Copyright (c) 2004 Pat Thoyts <patthoyts@users.sourceforge.net>








  

    2.2
    Memory channels