diff options
Diffstat (limited to 'doc/CrtChannel.3')
| -rw-r--r-- | doc/CrtChannel.3 | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/doc/CrtChannel.3 b/doc/CrtChannel.3 index 477ef67..828b958 100644 --- a/doc/CrtChannel.3 +++ b/doc/CrtChannel.3 @@ -5,7 +5,7 @@ '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" -'\" RCS: @(#) $Id: CrtChannel.3,v 1.16 2002/07/01 18:24:39 jenglish Exp $ +'\" RCS: @(#) $Id: CrtChannel.3,v 1.16.2.1 2004/07/15 20:46:17 andreas_kupries Exp $ .so man.macros .TH Tcl_CreateChannel 3 8.3 Tcl "Tcl Library Procedures" .BS @@ -405,6 +405,14 @@ behavior must be emulated in the channel driver. .PP This value can be retrieved with \fBTcl_ChannelBlockModeProc\fR, which returns a pointer to the function. +.PP +A channel driver \fBnot\fR supplying a \fIblockModeProc\fR has to be +very, very careful. It has to tell the generic layer exactly which +blocking mode is acceptable to it, and should this also document for +the user so that the blocking mode of the channel is not changed to an +inacceptable value. Any confusion here may lead the interpreter into a +(spurious and difficult to find) deadlock. + .SH "CLOSEPROC AND CLOSE2PROC" .PP |