WAL

src/include/access/xlogdefs.h

@@ -0,0 +1,24 @@
+/*
+ *
+ * xlogdefs.h
+ *
+ * Postgres transaction log manager record pointer and
+ * system stratup number definitions
+ *
+ */
+#ifndef XLOG_DEFS_H
+#define XLOG_DEFS_H
+
+typedef struct XLogRecPtr
+{
+	uint32		xlogid;			/* log file #, 0 based */
+	uint32		xrecoff;		/* offset of record in log file */
+} XLogRecPtr;
+
+/*
+ * StartUpID (SUI) - system startups counter. It's to allow removing
+ * pg_log after shutdown, in future.
+ */
+typedef	uint32		StartUpID;
+
+#endif	 /* XLOG_DEFS_H */