Initial revision

CVS patchset: 5110
CVS date: 2001/10/15 03:47:21

1 files changed, 93 insertions, 0 deletions

diff --git a/db/os/os_clock.c b/db/os/os_clock.c
new file mode 100644
index 000000000..b6218a845
--- /dev/null
+++ b/db/os/os_clock.c
@@ -0,0 +1,93 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 2001
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char revid[] = "Id: os_clock.c,v 1.6 2001/09/07 18:17:49 krinsky Exp ";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#if TIME_WITH_SYS_TIME
+#include <sys/time.h>
+#include <time.h>
+#else
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif /* HAVE_SYS_TIME_H */
+#endif /* TIME_WITH SYS_TIME */
+
+#include <string.h>
+#endif
+
+#include "db_int.h"
+#include "os_jump.h"
+
+/*
+ * __os_clock --
+ *	Return the current time-of-day clock in seconds and microseconds.
+ *
+ * PUBLIC: int __os_clock __P((DB_ENV *, u_int32_t *, u_int32_t *));
+ */
+int
+__os_clock(dbenv, secsp, usecsp)
+	DB_ENV *dbenv;
+	u_int32_t *secsp, *usecsp;	/* Seconds and microseconds. */
+{
+#if defined(HAVE_GETTIMEOFDAY)
+	struct timeval tp;
+	int ret;
+
+retry:	if (gettimeofday(&tp, NULL) != 0) {
+		if ((ret = __os_get_errno()) == EINTR)
+			goto retry;
+		__db_err(dbenv, "gettimeofday: %s", strerror(ret));
+		return (ret);
+	}
+
+	if (secsp != NULL)
+		*secsp = tp.tv_sec;
+	if (usecsp != NULL)
+		*usecsp = tp.tv_usec;
+#endif
+#if !defined(HAVE_GETTIMEOFDAY) && defined(HAVE_CLOCK_GETTIME)
+	struct timespec tp;
+	int ret;
+
+retry:	if (clock_gettime(CLOCK_REALTIME, &tp) != 0) {
+		if ((ret = __os_get_errno()) == EINTR)
+			goto retry;
+		__db_err(dbenv, "clock_gettime: %s", strerror(ret));
+		return (ret);
+	}
+
+	if (secsp != NULL)
+		*secsp = tp.tv_sec;
+	if (usecsp != NULL)
+		*usecsp = tp.tv_nsec / 1000;
+#endif
+#if !defined(HAVE_GETTIMEOFDAY) && !defined(HAVE_CLOCK_GETTIME)
+	time_t now;
+	int ret;
+
+	if (time(&now) == (time_t)-1) {
+		ret = __os_get_errno();
+		__db_err(dbenv, "time: %s", strerror(ret));
+		return (ret);
+	}
+
+	if (secsp != NULL)
+		*secsp = now;
+	if (usecsp != NULL)
+		*usecsp = 0;
+#endif
+	return (0);
+}