Major code cleanup.

- Make all internal functions "static".
- Make sure each module's header and implementation file match.
- Remove all library-like functionality from main.c, so only
  the actual frontend remains in main.c.
- Add C++ brackets to all header files.

That effectively leaves the various module C files as something like
an "avrdude library", with main.c being the currently only frontend
program for that library.  In theory, it should be possible to write
different frontends using the same library backend functions though.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@722 81a1dc3b-b13d-400b-aceb-764788c761c2

avr.c

@@ -35,6 +35,9 @@
 #include "pindefs.h"
 #include "ppi.h"
 #include "safemode.h"
+#include "update.h"
+
+FP_UpdateProgress update_progress;
 
 #define DEBUG 0
 
@@ -804,3 +807,54 @@ int avr_chip_erase(PROGRAMMER * pgm, AVRPART * p)
 
   return rc;
 }
+
+/*
+ * Report the progress of a read or write operation from/to the
+ * device.
+ *
+ * The first call of report_progress() should look like this (for a write op):
+ *
+ * report_progress (0, 1, "Writing");
+ *
+ * Then hdr should be passed NULL on subsequent calls while the
+ * operation is progressing. Once the operation is complete, a final
+ * call should be made as such to ensure proper termination of the
+ * progress report:
+ *
+ * report_progress (1, 1, NULL);
+ *
+ * It would be nice if we could reduce the usage to one and only one
+ * call for each of start, during and end cases. As things stand now,
+ * that is not possible and makes maintenance a bit more work.
+ */
+void report_progress (int completed, int total, char *hdr)
+{
+  static int last = 0;
+  static double start_time;
+  int percent = (completed * 100) / total;
+  struct timeval tv;
+  double t;
+
+  if (update_progress == NULL)
+    return;
+
+  gettimeofday(&tv, NULL);
+  t = tv.tv_sec + ((double)tv.tv_usec)/1000000;
+
+  if (hdr) {
+    last = 0;
+    start_time = t;
+    update_progress (percent, t - start_time, hdr);
+  }
+
+  if (percent > 100)
+    percent = 100;
+
+  if (percent > last) {
+    last = percent;
+    update_progress (percent, t - start_time, hdr);
+  }
+
+  if (percent == 100)
+    last = 0;                   /* Get ready for next time. */
+}