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*** tcl.h.orig Fri Dec 4 04:02:25 1998
--- tcl.h Tue Dec 15 00:32:08 1998
***************
*** 1495,1500 ****
--- 1495,1507 ----
char *chanName, int *modePtr));
EXTERN int Tcl_GetChannelBufferSize _ANSI_ARGS_((
Tcl_Channel chan));
+
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * "Trf-Patch for channels with a switchable byteorder"
+ */
+ EXTERN int Tcl_GetChannelByteorder _ANSI_ARGS_((
+ Tcl_Channel chan));
+
EXTERN int Tcl_GetChannelHandle _ANSI_ARGS_((Tcl_Channel chan,
int direction, ClientData *handlePtr));
EXTERN ClientData Tcl_GetChannelInstanceData _ANSI_ARGS_((
*** tclIO.c.orig Fri Dec 4 04:02:25 1998
--- tclIO.c Tue Dec 15 00:52:07 1998
***************
*** 261,266 ****
--- 261,270 ----
* When set, file events will not be
* delivered for buffered data until
* the state of the channel changes. */
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * "Trf-Patch for channels with a switchable byteorder"
+ */
+ #define CHANNEL_IS_SMALLENDIAN (1<<16) /* Multibyte words are stored with MSB last */
/*
* For each channel handler registered in a call to Tcl_CreateChannelHandler,
***************
*** 1241,1246 ****
--- 1245,1264 ----
CONST char *name;
ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * "Trf-Patch for channels with a switchable byteorder"
+ * Location: Tcl_CreateChannel.
+ */
+ union {
+ char c[sizeof(short)];
+ short s;
+ } order;
+
+ order.s = 1;
+ if (order.c[0] == 1) {
+ mask |= CHANNEL_IS_SMALLENDIAN;
+ }
+
chanPtr = (Channel *) ckalloc((unsigned) sizeof(Channel));
if (chanName != (char *) NULL) {
***************
*** 4924,4930 ****
{
if (interp) {
CONST char *genericopt =
! "blocking buffering buffersize eofchar translation";
char **argv;
int argc, i;
Tcl_DString ds;
--- 4942,4948 ----
{
if (interp) {
CONST char *genericopt =
! "blocking buffering buffersize byteorder eofchar translation";
char **argv;
int argc, i;
Tcl_DString ds;
***************
*** 4954,4959 ****
--- 4972,5009 ----
return TCL_ERROR;
}
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * "Trf-Patch for channels with a switchable byteorder"
+ * Exported functionality.
+ */
+
+ /*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_GetChannelByteorder --
+ *
+ * Retrieves the byteorder set for this channel.
+ *
+ * Results:
+ * The size.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+ int
+ Tcl_GetChannelByteorder(chan)
+ Tcl_Channel chan; /* The channel for which to find the
+ * buffer size. */
+ {
+ Channel *chanPtr;
+
+ chanPtr = (Channel *) chan;
+ return ((chanPtr->flags & CHANNEL_IS_SMALLENDIAN) != 0);
+ }
+
/*
*----------------------------------------------------------------------
*
***************
*** 5074,5079 ****
--- 5124,5148 ----
return TCL_OK;
}
}
+
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * "Trf-Patch for channels with a switchable byteorder"
+ * Location: Tcl_GetChannelOption
+ */
+
+ if ((len == 0) || ((len > 2) && (optionName[1] == 'b') &&
+ (strncmp(optionName, "-byteorder", len) == 0))) {
+ if (len == 0) {
+ Tcl_DStringAppendElement(dsPtr, "-byteorder");
+ }
+ Tcl_DStringAppendElement(dsPtr,
+ (chanPtr->flags & CHANNEL_IS_SMALLENDIAN) ?
+ "smallendian" : "bigendian");
+ if (len > 0) {
+ return TCL_OK;
+ }
+ }
+
if ((len == 0) ||
((len > 2) && (optionName[1] == 'e') &&
(strncmp(optionName, "-eofchar", len) == 0))) {
***************
*** 5269,5274 ****
--- 5338,5378 ----
if ((chanPtr->bufSize < 10) || (chanPtr->bufSize > (1024 * 1024))) {
chanPtr->bufSize = CHANNELBUFFER_DEFAULT_SIZE;
}
+
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * "Trf-Patch for channels with a switchable byteorder"
+ * Location: Tcl_SetChannelOption.
+ */
+
+ } else if ((len > 2) && (optionName[1] == 'b') &&
+ (strncmp(optionName, "-byteorder", len) == 0)) {
+ int nv_len = strlen (newValue);
+
+ if ((nv_len > 0) &&
+ (strncmp (newValue, "smallendian", nv_len) == 0)) {
+ chanPtr->flags |= CHANNEL_IS_SMALLENDIAN;
+ return TCL_OK;
+ } else if ((nv_len > 0) &&
+ (strncmp (newValue, "littleendian", nv_len) == 0)) {
+ chanPtr->flags |= CHANNEL_IS_SMALLENDIAN;
+ return TCL_OK;
+ } else if ((nv_len > 0) &&
+ (strncmp (newValue, "network", nv_len) == 0)) {
+ chanPtr->flags &= ~CHANNEL_IS_SMALLENDIAN;
+ return TCL_OK;
+ } else if ((nv_len > 0) &&
+ (strncmp (newValue, "bigendian", nv_len) == 0)) {
+ chanPtr->flags &= ~CHANNEL_IS_SMALLENDIAN;
+ return TCL_OK;
+ }
+
+ if (interp != (Tcl_Interp *) NULL) {
+ Tcl_AppendResult(interp,
+ "bad value for -byteorder: ",
+ "must be one of smallendian, littleendian, bigendian or network",
+ (char *) NULL);
+ }
+ return TCL_ERROR;
} else if ((len > 2) && (optionName[1] == 'e') &&
(strncmp(optionName, "-encoding", len) == 0)) {
Tcl_Encoding encoding;
|
