1 files changed, 108 insertions, 0 deletions
diff --git a/db/os/os_stat.c b/db/os/os_stat.c
new file mode 100644
index 000000000..1590e8ecd
--- /dev/null
+++ b/db/os/os_stat.c
@@ -0,0 +1,108 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1997, 1998, 1999, 2000
+ *	Sleepycat Software.  All rights reserved.
+ */
+
+#include "db_config.h"
+
+#ifndef lint
+static const char revid[] = "$Id: os_stat.c,v 11.8 2000/10/27 20:32:02 dda Exp $";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <string.h>
+#endif
+
+#include "db_int.h"
+#include "os_jump.h"
+
+/*
+ * __os_exists --
+ *	Return if the file exists.
+ *
+ * PUBLIC: int __os_exists __P((const char *, int *));
+ */
+int
+__os_exists(path, isdirp)
+	const char *path;
+	int *isdirp;
+{
+	struct stat sb;
+
+	if (__db_jump.j_exists != NULL)
+		return (__db_jump.j_exists(path, isdirp));
+
+#ifdef HAVE_VXWORKS
+	if (stat((char *)path, &sb) != 0)
+#else
+	if (stat(path, &sb) != 0)
+#endif
+		return (__os_get_errno());
+
+#if !defined(S_ISDIR) || defined(STAT_MACROS_BROKEN)
+#ifdef DB_WIN32
+#define	S_ISDIR(m)	(_S_IFDIR & (m))
+#else
+#define	S_ISDIR(m)	(((m) & 0170000) == 0040000)
+#endif
+#endif
+	if (isdirp != NULL)
+		*isdirp = S_ISDIR(sb.st_mode);
+
+	return (0);
+}
+
+/*
+ * __os_ioinfo --
+ *	Return file size and I/O size; abstracted to make it easier
+ *	to replace.
+ *
+ * PUBLIC: int __os_ioinfo __P((DB_ENV *, const char *,
+ * PUBLIC:    DB_FH *, u_int32_t *, u_int32_t *, u_int32_t *));
+ */
+int
+__os_ioinfo(dbenv, path, fhp, mbytesp, bytesp, iosizep)
+	DB_ENV *dbenv;
+	const char *path;
+	DB_FH *fhp;
+	u_int32_t *mbytesp, *bytesp, *iosizep;
+{
+	int ret;
+	struct stat sb;
+
+	if (__db_jump.j_ioinfo != NULL)
+		return (__db_jump.j_ioinfo(path,
+		    fhp->fd, mbytesp, bytesp, iosizep));
+
+	if (fstat(fhp->fd, &sb) == -1) {
+		ret = __os_get_errno();
+		__db_err(dbenv, "fstat: %s", strerror(ret));
+		return (ret);
+	}
+
+	/* Return the size of the file. */
+	if (mbytesp != NULL)
+		*mbytesp = sb.st_size / MEGABYTE;
+	if (bytesp != NULL)
+		*bytesp = sb.st_size % MEGABYTE;
+
+	/*
+	 * Return the underlying filesystem blocksize, if available.
+	 *
+	 * XXX
+	 * Check for a 0 size -- the HP MPE/iX architecture has st_blksize,
+	 * but it's always 0.
+	 */
+#ifdef HAVE_ST_BLKSIZE
+	if (iosizep != NULL && (*iosizep = sb.st_blksize) == 0)
+		*iosizep = DB_DEF_IOSIZE;
+#else
+	if (iosizep != NULL)
+		*iosizep = DB_DEF_IOSIZE;
+#endif
+	return (0);
+}