Merge pull request #186 from Al2Klimov/openbsd

Support OpenBSD

utils.c

@@ -212,14 +212,18 @@ int posix_fadvise(int fd, off_t offset, off_t len, int advice)
 	}
 }
 
+#endif	/* Apple Macintosh */
+
+#if (__APPLE__ && __MACH__) || defined(__OpenBSD__)
+
 #include <unistd.h> /* For usleep(). */
 
 void msleep(double wait_ms)
 {
 	assert(!usleep(wait_ms * 1000));
 }
 
-#else
+#else	/* Apple Macintosh / OpenBSD */
 
 #include <time.h> /* For clock_gettime() and clock_nanosleep(). */
 
@@ -254,4 +258,4 @@ void msleep(double wait_ms)
 	assert(ret == 0);
 }
 
-#endif
+#endif	/* Apple Macintosh / OpenBSD */

utils.h

@@ -55,4 +55,20 @@ int posix_fadvise(int fd, off_t offset, off_t len, int advice);
 #define fdatasync(fd) fsync(fd)
 #endif
 
+#ifdef __OpenBSD__
+
+#define POSIX_FADV_SEQUENTIAL	2 /* Expect sequential page references.	*/
+#define POSIX_FADV_DONTNEED	4 /* Don't need these pages.		*/
+
+/*
+ * OpenBSD doesn't have posix_fadvise() (...).
+ * There is some code [in F3] to emulate posix_fadvise for MacOS
+ * but it uses various fcntl(2) commands that we don't have [in OpenBSD].
+ *
+ *  -- Stuart Henderson, OpenBSD developer
+ */
+#define posix_fadvise(fd, offset, len, advice) (0)
+
+#endif	/* OpenBSD */
+
 #endif	/* HEADER_UTILS_H */