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-rw-r--r--db2/os/db_os_stat.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/db2/os/db_os_stat.c b/db2/os/db_os_stat.c
new file mode 100644
index 0000000000..7929b6b754
--- /dev/null
+++ b/db2/os/db_os_stat.c
@@ -0,0 +1,84 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1997
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)db_os_stat.c	10.6 (Sleepycat) 7/2/97";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+#endif
+
+#include "db_int.h"
+#include "os_ext.h"
+#include "common_ext.h"
+
+/*
+ * __db_exists --
+ *	Return if the file exists.
+ *
+ * PUBLIC: int __db_exists __P((const char *, int *));
+ */
+int
+__db_exists(path, isdirp)
+	const char *path;
+	int *isdirp;
+{
+	struct stat sb;
+
+	if (stat(path, &sb) != 0)
+		return (errno);
+	if (isdirp != NULL)
+		*isdirp = S_ISDIR(sb.st_mode);
+	return (0);
+}
+
+/*
+ * __db_stat --
+ *	Return file size and I/O size; abstracted to make it easier
+ *	to replace.
+ *
+ * PUBLIC: int __db_stat __P((DB_ENV *, const char *, int, off_t *, off_t *));
+ */
+int
+__db_stat(dbenv, path, fd, sizep, iop)
+	DB_ENV *dbenv;
+	const char *path;
+	int fd;
+	off_t *sizep, *iop;
+{
+	struct stat sb;
+
+	if (fstat(fd, &sb) == -1) {
+		__db_err(dbenv, "%s: fstat: %s", path, strerror(errno));
+		return (errno);
+	}
+
+	/* Return the size of the file. */
+	if (sizep != NULL)
+		*sizep = sb.st_size;
+
+	/*
+	 * Return the underlying filesystem blocksize, if available.  Default
+	 * to 8K on the grounds that most OS's use less than 8K as their VM
+	 * page size.
+	 */
+#ifdef HAVE_ST_BLKSIZE
+	if (iop != NULL)
+		*iop = sb.st_blksize;
+#else
+	if (iop != NULL)
+		*iop = 8 * 1024;
+#endif
+	return (0);
+}