int lineByLine;
char *unused;
InputCallback func;
- XtInputId xid;
+ guint sid;
char buf[INPUT_SOURCE_BUF_SIZE];
VOIDSTAR closure;
} InputSource;
void
-DoInputCallback(closure, source, xid)
- caddr_t closure;
- int *source;
- XtInputId *xid;
+DoInputCallback(io,cond,data)
+ GIOChannel *io;
+ GIOCondition cond;
+ gpointer *data;
{
- InputSource *is = (InputSource *) closure;
- int count;
- int error;
- char *p, *q;
+ /* read input from one of the input source (for example a chess program, ICS, etc).
+ * and call a function that will handle the input
+ */
- if (is->lineByLine) {
- count = read(is->fd, is->unused,
- INPUT_SOURCE_BUF_SIZE - (is->unused - is->buf));
- if (count <= 0) {
- (is->func)(is, is->closure, is->buf, count, count ? errno : 0);
- return;
+ int count; /* how many bytes did we read */
+ int error;
+ char *p, *q;
+
+ /* All information (callback function, file descriptor, etc) is
+ * saved in an InputSource structure
+ */
+ InputSource *is = (InputSource *) data;
+
+ if (is->lineByLine)
+ {
+ count = read(is->fd, is->unused,
+ INPUT_SOURCE_BUF_SIZE - (is->unused - is->buf));
+
+ if (count <= 0)
+ {
+ (is->func)(is, is->closure, is->buf, count, count ? errno : 0);
+ return;
}
- is->unused += count;
- p = is->buf;
- while (p < is->unused) {
- q = memchr(p, '\n', is->unused - p);
- if (q == NULL) break;
- q++;
- (is->func)(is, is->closure, p, q - p, 0);
- p = q;
+ is->unused += count;
+ p = is->buf;
+ /* break input into lines and call the callback function on each
+ * line
+ */
+ while (p < is->unused)
+ {
+ q = memchr(p, '\n', is->unused - p);
+ if (q == NULL) break;
+ q++;
+ (is->func)(is, is->closure, p, q - p, 0);
+ p = q;
}
- q = is->buf;
- while (p < is->unused) {
- *q++ = *p++;
+ /* remember not yet used part of the buffer */
+ q = is->buf;
+ while (p < is->unused)
+ {
+ *q++ = *p++;
}
- is->unused = q;
- } else {
- count = read(is->fd, is->buf, INPUT_SOURCE_BUF_SIZE);
- if (count == -1)
- error = errno;
- else
- error = 0;
- (is->func)(is, is->closure, is->buf, count, error);
+ is->unused = q;
}
+ else
+ {
+ /* read maximum length of input buffer and send the whole buffer
+ * to the callback function
+ */
+ count = read(is->fd, is->buf, INPUT_SOURCE_BUF_SIZE);
+ if (count == -1)
+ error = errno;
+ else
+ error = 0;
+ (is->func)(is, is->closure, is->buf, count, error);
+ }
+
+ return;
}
InputSourceRef AddInputSource(pr, lineByLine, func, closure)
VOIDSTAR closure;
{
InputSource *is;
+ GIOChannel *channel;
ChildProc *cp = (ChildProc *) pr;
is = (InputSource *) calloc(1, sizeof(InputSource));
is->kind = cp->kind;
is->fd = cp->fdFrom;
}
- if (lineByLine) {
- is->unused = is->buf;
- }
+ if (lineByLine)
+ is->unused = is->buf;
+ else
+ is->unused = NULL;
+
+// is->xid = XtAppAddInput(appContext, is->fd,
+// (XtPointer) (XtInputReadMask),
+// (XtInputCallbackProc) DoInputCallback,
+// (XtPointer) is);
+//
- is->xid = XtAppAddInput(appContext, is->fd,
- (XtPointer) (XtInputReadMask),
- (XtInputCallbackProc) DoInputCallback,
- (XtPointer) is);
+ /* TODO: will this work on windows?*/
+ printf("DEBUG: fd=%d %d\n",is->fd,is);
+
+ channel = g_io_channel_unix_new(is->fd);
+ g_io_channel_set_close_on_unref (channel, TRUE);
+ is->sid = g_io_add_watch(channel, G_IO_IN,(GIOFunc) DoInputCallback, is);
is->closure = closure;
return (InputSourceRef) is;
}
{
InputSource *is = (InputSource *) isr;
- if (is->xid == 0) return;
- XtRemoveInput(is->xid);
- is->xid = 0;
+ if (is->sid == 0) return;
+ g_source_remove(is->sid);
+ is->sid = 0;
+ return;
}
int OutputToProcess(pr, message, count, outError)