Changeset 3692 for trunk/Ohana/src/opihi/lib.data/open_graph.c

Timestamp:

Apr 8, 2005, 5:38:38 PM (21 years ago)

Author:

eugene

Message:

converted Xgraph messages to SendGraphCommand

File:

• trunk/Ohana/src/opihi/lib.data/open_graph.c (modified) (2 diffs)

trunk/Ohana/src/opihi/lib.data/open_graph.c

@@ -51 +51 @@
   for (i = 0; i < NXGRAPH; i++) {
     if (Xgraph[i] > 0) {
-      write (Xgraph[i], "QUIT", 4);
+      SendGraphCommand (Xgraph[i], 4, "QUIT");
     }
   }
@@ -247 +247 @@
   char buffer[64];
 
-  write (Xgraph, "LABL", 4);
-  sprintf (buffer, " %6d %6d  ", strlen (string), mode);
-  write (Xgraph, buffer, 16);
+  SendGraphCommand (Xgraph, 4, "LABL");
+  SendGraphCommand (Xgraph, 16, "%6d %6d", strlen (string), mode);
   write (Xgraph, string, strlen (string));
   return (TRUE);
 }
+
+/* send a message of arbitrary size, sending the size first */
+int SendGraphMessage (int device, char *format, ...) {
+
+  int Nbyte, status;
+  char *string, tmp;
+  va_list argp;  
+
+  va_start (argp, format);
+  Nbyte = vsnprintf (&tmp, 0, format, argp);
+  va_end (argp);
+
+  if (!Nbyte) return (FALSE);
+
+  SendGraphCommand (device, 16, "NBYTES: %6d", Nbyte);
+  status = SendGraphCommandV (device, Nbyte, format, argp);
+  return (status);
+}
+
+int SendGraphCommand (int device, int length, char *format, ...) {
+
+  int status;
+  va_list argp;  
+
+  va_start (argp, format);
+  status = SendGraphCommandV (device, length, format, argp);
+  va_end (argp);
+  return (status);
+}
+  
+int SendGraphCommandV (int device, int length, char *format, va_list argp) {
+
+  int Nbyte;
+  char *string, tmp;
+
+  Nbyte = vsnprintf (&tmp, 0, format, argp);
+  if (Nbyte > length) return (FALSE);
+
+  /* I allocated and zero 1 extra byte */
+  ALLOCATE (string, char, length + 1);
+  memset (string, 0, length + 1);
+  vsnprintf (string, length + 1, format, argp);
+  /* fprintf (stderr, "msg: %s\n", string); */
+  write (device, string, length);
+  free (string);
+  return (TRUE);
+}