Add common.h
authorRoy Marples <roy@marples.name>
Wed, 18 Mar 2015 17:03:28 +0000 (17:03 +0000)
committerRoy Marples <roy@marples.name>
Wed, 18 Mar 2015 17:03:28 +0000 (17:03 +0000)
src/dhcpcd-curses/common.h [new file with mode: 0644]

diff --git a/src/dhcpcd-curses/common.h b/src/dhcpcd-curses/common.h
new file mode 100644 (file)
index 0000000..aeb1ccf
--- /dev/null
@@ -0,0 +1,98 @@
+/*
+ * dhcpcd - DHCP client daemon
+ * Copyright (c) 2006-2015 Roy Marples <roy@marples.name>
+ * All rights reserved
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef COMMON_H
+#define COMMON_H
+
+#include <sys/time.h>
+
+#include "config.h"
+
+#define USEC_PER_SEC           1000000L
+#define USEC_PER_NSEC          1000L
+#define NSEC_PER_SEC           1000000000L
+#define MSEC_PER_SEC           1000L
+#define MSEC_PER_NSEC          1000000L
+
+/* Some systems don't define timespec macros */
+#ifndef timespecclear
+#define timespecclear(tsp)      (tsp)->tv_sec = (time_t)((tsp)->tv_nsec = 0L)
+#define timespecisset(tsp)      ((tsp)->tv_sec || (tsp)->tv_nsec)
+#define timespeccmp(tsp, usp, cmp)                                      \
+        (((tsp)->tv_sec == (usp)->tv_sec) ?                             \
+            ((tsp)->tv_nsec cmp (usp)->tv_nsec) :                       \
+            ((tsp)->tv_sec cmp (usp)->tv_sec))
+#define timespecadd(tsp, usp, vsp)                                      \
+        do {                                                            \
+                (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec;          \
+                (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec;       \
+                if ((vsp)->tv_nsec >= 1000000000L) {                    \
+                        (vsp)->tv_sec++;                                \
+                        (vsp)->tv_nsec -= 1000000000L;                  \
+                }                                                       \
+        } while (/* CONSTCOND */ 0)
+#define timespecsub(tsp, usp, vsp)                                      \
+        do {                                                            \
+                (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec;          \
+                (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec;       \
+                if ((vsp)->tv_nsec < 0) {                               \
+                        (vsp)->tv_sec--;                                \
+                        (vsp)->tv_nsec += 1000000000L;                  \
+                }                                                       \
+        } while (/* CONSTCOND */ 0)
+#endif
+
+#define timespecnorm(tv) do {                                               \
+       while ((tv)->tv_nsec >=  NSEC_PER_SEC) {                             \
+               (tv)->tv_sec++;                                              \
+               (tv)->tv_nsec -= NSEC_PER_SEC;                               \
+       }                                                                    \
+} while (0 /* CONSTCOND */);
+
+#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
+# ifndef __dead
+#  define __dead __attribute__((__noreturn__))
+# endif
+# ifndef __packed
+#  define __packed   __attribute__((__packed__))
+# endif
+# ifndef __unused
+#  define __unused   __attribute__((__unused__))
+# endif
+#else
+# ifndef __dead
+#  define __dead
+# endif
+# ifndef __packed
+#  define __packed
+# endif
+# ifndef __unused
+#  define __unused
+# endif
+#endif
+
+#endif