Tcl Source Code

2013-01-03  Donal K. Fellows  <[email protected]>

	* doc/fconfigure.n, doc/CrtChannel.3: Updated to reflect the fact that
	the minimum buffer size is one byte, not ten. Identified by Schelte
	Bron on the Tcler's Chat.

	* generic/tclExecute.c (TEBCresume:INST_INVOKE_REPLACE):
	* generic/tclEnsemble.c (TclCompileEnsemble): Added new mechanism to
	allow for more efficient dispatch of non-bytecode-compiled subcommands
	of bytecode-compiled ensembles. This can provide substantial speed
	benefits in some cases.

\fBTcl_GetChannelBufferSize\fR returns the size, in bytes, of buffers
allocated to store input or output in \fIchannel\fR. If the value was not set
by a previous call to \fBTcl_SetChannelBufferSize\fR, described below, then
the default value of 4096 is returned.
.PP
\fBTcl_SetChannelBufferSize\fR sets the size, in bytes, of buffers that
will be allocated in subsequent operations on the channel to store input or
output. The \fIsize\fR argument should be between one and one million,
allowing buffers of ten bytes to one million bytes. If \fIsize\fR is
outside this range, \fBTcl_SetChannelBufferSize\fR sets the buffer size to
4096.
.PP
\fBTcl_NotifyChannel\fR is called by a channel driver to indicate to
the generic layer that the events specified by \fImask\fR have
occurred on the channel.  Channel drivers are responsible for invoking

is \fBline\fR.  Additionally, \fBstdin\fR and \fBstdout\fR are
initially set to \fBline\fR, and \fBstderr\fR is set to \fBnone\fR.
.TP
\fB\-buffersize\fR \fInewSize\fR
.
\fINewvalue\fR must be an integer; its value is used to set the size of
buffers, in bytes, subsequently allocated for this channel to store input
or output. \fINewvalue\fR must be between one and one million, allowing
buffers of one to one million bytes in size.
.TP
\fB\-encoding\fR \fIname\fR
.
This option is used to specify the encoding of the channel, so that the data
can be converted to and from Unicode for use in Tcl.  For instance, in
order for Tcl to read characters from a Japanese file in \fBshiftjis\fR
and properly process and display the contents, the encoding would be set