Adding upstream version 15.4.upstream/15.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/src/include/storage/fileset.h b/src/include/storage/fileset.h
new file mode 100644
index 0000000..ad37884
--- /dev/null
+++ b/src/include/storage/fileset.h
@@ -0,0 +1,40 @@
+/*-------------------------------------------------------------------------
+ *
+ * fileset.h
+ *	  Management of named temporary files.
+ *
+ * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/storage/fileset.h
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#ifndef FILESET_H
+#define FILESET_H
+
+#include "storage/fd.h"
+
+/*
+ * A set of temporary files.
+ */
+typedef struct FileSet
+{
+	pid_t		creator_pid;	/* PID of the creating process */
+	uint32		number;			/* per-PID identifier */
+	int			ntablespaces;	/* number of tablespaces to use */
+	Oid			tablespaces[8]; /* OIDs of tablespaces to use. Assumes that
+								 * it's rare that there more than temp
+								 * tablespaces. */
+} FileSet;
+
+extern void FileSetInit(FileSet *fileset);
+extern File FileSetCreate(FileSet *fileset, const char *name);
+extern File FileSetOpen(FileSet *fileset, const char *name,
+						int mode);
+extern bool FileSetDelete(FileSet *fileset, const char *name,
+						  bool error_on_failure);
+extern void FileSetDeleteAll(FileSet *fileset);
+
+#endif