1 files changed, 106 insertions, 0 deletions
diff --git a/db/os/os_unlink.c b/db/os/os_unlink.c
new file mode 100644
index 000000000..56c401fe3
--- /dev/null
+++ b/db/os/os_unlink.c
@@ -0,0 +1,106 @@
+/*-
+ * 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_unlink.c,v 11.13 2000/11/30 00:58:42 ubell Exp $";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+
+#include <string.h>
+#include <unistd.h>
+#endif
+
+#include "db_int.h"
+#include "os_jump.h"
+
+/*
+ * __os_unlink --
+ *	Remove a file.
+ *
+ * PUBLIC: int __os_unlink __P((DB_ENV *, const char *));
+ */
+int
+__os_unlink(dbenv, path)
+	DB_ENV *dbenv;
+	const char *path;
+{
+	int ret;
+
+	ret = __db_jump.j_unlink != NULL ?
+	    __db_jump.j_unlink(path) :
+#ifdef HAVE_VXWORKS
+	    unlink((char *)path);
+#else
+	    unlink(path);
+#endif
+	if (ret == -1) {
+		ret = __os_get_errno();
+		/*
+		 * XXX
+		 * We really shouldn't be looking at this value ourselves,
+		 * but ENOENT usually signals that a file is missing, and
+		 * we attempt to unlink things (such as v. 2.x environment
+		 * regions, in DB_ENV->remove) that we're expecting not to
+		 * be there.  Reporting errors in these cases is annoying.
+		 */
+#ifdef HAVE_VXWORKS
+		/*
+		 * XXX
+		 * The results of unlink are file system driver specific
+		 * on VxWorks.  In the case of removing a file that did
+		 * not exist, some, at least, return an error, but with
+		 * an errno of 0, not ENOENT.
+		 *
+		 * Code below falls through to original if-statement only
+		 * we didn't get a "successful" error.
+		 */
+		if (ret != 0)
+		/* FALLTHROUGH */
+#endif
+		if (ret != ENOENT)
+			__db_err(dbenv, "Unlink: %s: %s", path, strerror(ret));
+	}
+
+	return (ret);
+}
+
+/*
+ * __os_region_unlink --
+ *	Remove a shared memory object file.
+ *
+ * PUBLIC: int __os_region_unlink __P((DB_ENV *, const char *));
+ */
+int
+__os_region_unlink(dbenv, path)
+	DB_ENV *dbenv;
+	const char *path;
+{
+#ifdef HAVE_QNX
+	int ret;
+	char *newname;
+
+	if ((ret = __os_shmname(dbenv, path, &newname)) != 0)
+		goto err;
+
+	if ((ret = shm_unlink(newname)) != 0) {
+		ret = __os_get_errno();
+		if (ret != ENOENT)
+			__db_err(dbenv, "Shm_unlink: %s: %s",
+			    newname, strerror(ret));
+	}
+err:
+	if (newname != NULL)
+		__os_free(newname, 0);
+	return (ret);
+#else
+	return (__os_unlink(dbenv, path));
+#endif
+}