Merge devel code into the trunk.

[tinyos-2.x.git] / tools / platforms / mica / uisp / src / timeradd.h

diff --git a/tools/platforms/mica/uisp/src/timeradd.h b/tools/platforms/mica/uisp/src/timeradd.h
new file mode 100644 (file)
index 0000000..4a22df6
--- /dev/null
+++ b/tools/platforms/mica/uisp/src/timeradd.h
@@ -0,0 +1,65 @@
+// $Id$
+
+/*
+ * $Id$
+ *
+ ****************************************************************************
+ *
+ * uisp - The Micro In-System Programmer for Atmel AVR microcontrollers.
+ * Copyright (C) 2002, 2003  Marek Michalkiewicz
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ ****************************************************************************
+ */
+
+/* I'm not sure how portable is to use these macros (they are available
+   on my system, but not mentioned in the glibc manual I have).
+   Similar macros are provided here for systems that don't have them.  -MM */
+
+#include <sys/time.h>
+
+#ifndef timeradd
+#define timeradd(_a, _b, _res)                         \
+  do {                                                 \
+    (_res)->tv_usec = (_a)->tv_usec + (_b)->tv_usec;   \
+    (_res)->tv_sec = (_a)->tv_sec + (_b)->tv_sec;      \
+    if ((_res)->tv_usec >= 1000000)                    \
+      {                                                        \
+        (_res)->tv_usec -= 1000000;                    \
+        (_res)->tv_sec++;                              \
+      }                                                        \
+  } while (0)
+#endif
+
+#ifndef timersub
+#define timersub(_a, _b, _res)                         \
+  do {                                                 \
+    (_res)->tv_usec = (_a)->tv_usec - (_b)->tv_usec;   \
+    (_res)->tv_sec = (_a)->tv_sec - (_b)->tv_sec;      \
+    if ((_res)->tv_usec < 0) {                         \
+      (_res)->tv_usec += 1000000;                      \
+      (_res)->tv_sec--;                                        \
+    }                                                  \
+  } while (0)
+#endif
+
+#ifndef timercmp
+#define timercmp(_a, _b, _cmp)                         \
+  (((_a)->tv_sec == (_b)->tv_sec) ?                    \
+   ((_a)->tv_usec _cmp (_b)->tv_usec) :                        \
+   ((_a)->tv_sec _cmp (_b)->tv_sec))
+#endif
+