init

db_include/access/generic_xlog.h

@@ -0,0 +1,45 @@
+/*-------------------------------------------------------------------------
+ *
+ * generic_xlog.h
+ *	  Generic xlog API definition.
+ *
+ *
+ * Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/access/generic_xlog.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef GENERIC_XLOG_H
+#define GENERIC_XLOG_H
+
+#include "access/xlog.h"
+#include "access/xlog_internal.h"
+#include "access/xloginsert.h"
+#include "storage/bufpage.h"
+#include "utils/rel.h"
+
+#define MAX_GENERIC_XLOG_PAGES	XLR_NORMAL_MAX_BLOCK_ID
+
+/* Flag bits for GenericXLogRegisterBuffer */
+#define GENERIC_XLOG_FULL_IMAGE 0x0001	/* write full-page image */
+
+/* state of generic xlog record construction */
+struct GenericXLogState;
+typedef struct GenericXLogState GenericXLogState;
+
+/* API for construction of generic xlog records */
+extern GenericXLogState *GenericXLogStart(Relation relation);
+extern Page GenericXLogRegisterBuffer(GenericXLogState *state, Buffer buffer,
+									  int flags);
+extern XLogRecPtr GenericXLogFinish(GenericXLogState *state);
+extern void GenericXLogAbort(GenericXLogState *state);
+
+/* functions defined for rmgr */
+extern void generic_redo(XLogReaderState *record);
+extern const char *generic_identify(uint8 info);
+extern void generic_desc(StringInfo buf, XLogReaderState *record);
+extern void generic_mask(char *pagedata, BlockNumber blkno);
+
+#endif							/* GENERIC_XLOG_H */