1 files changed, 84 insertions, 0 deletions
diff --git a/src/backend/storage/lmgr.h b/src/backend/storage/lmgr.h
new file mode 100644
index 00000000000..fe87eb05546
--- /dev/null
+++ b/src/backend/storage/lmgr.h
@@ -0,0 +1,84 @@
+/*-------------------------------------------------------------------------
+ *
+ * lmgr.h--
+ *    POSTGRES lock manager definitions.
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: lmgr.h,v 1.1.1.1 1996/07/09 06:21:53 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef	LMGR_H
+#define LMGR_H
+
+#include "postgres.h"
+
+#include "storage/itemptr.h"
+#include "storage/lock.h"
+#include "utils/rel.h"
+
+/* 
+ * This was moved from pladt.h for the new lock manager.  Want to obsolete
+ * all of the old code.
+ */
+typedef struct LRelId {
+    Oid	 relId;     /* a relation identifier */
+    Oid     dbId;      /* a database identifier */
+} LRelId;
+
+typedef struct LockInfoData  {
+    bool                    initialized;
+    LRelId                  lRelId;
+    TransactionId           transactionIdData;
+    uint16                  flags;
+} LockInfoData;
+typedef LockInfoData    *LockInfo;
+
+#define LockInfoIsValid(linfo) \
+	((PointerIsValid(linfo)) &&  ((LockInfo) linfo)->initialized)
+
+
+extern LRelId RelationGetLRelId(Relation relation);
+extern Oid LRelIdGetDatabaseId(LRelId lRelId);
+extern Oid LRelIdGetRelationId(LRelId lRelId);
+extern bool DatabaseIdIsMyDatabaseId(Oid databaseId);
+extern bool LRelIdContainsMyDatabaseId(LRelId lRelId);
+extern void RelationInitLockInfo(Relation relation);
+extern void RelationDiscardLockInfo(Relation relation);
+extern void RelationSetLockForDescriptorOpen(Relation relation);
+extern void RelationSetLockForRead(Relation relation);
+extern void RelationUnsetLockForRead(Relation relation);
+extern void RelationSetLockForWrite(Relation relation);
+extern void RelationUnsetLockForWrite(Relation relation);
+extern void RelationSetLockForTupleRead(Relation relation,
+					ItemPointer itemPointer);
+
+/* used in vaccum.c */
+extern void RelationSetLockForWritePage(Relation relation,
+		       ItemPointer itemPointer);
+
+/* used in nbtpage.c, hashpage.c */
+extern void RelationSetSingleWLockPage(Relation relation,
+		       ItemPointer itemPointer);
+extern void RelationUnsetSingleWLockPage(Relation relation,
+		       ItemPointer itemPointer);
+extern void RelationSetSingleRLockPage(Relation relation,
+		       ItemPointer itemPointer);
+extern void RelationUnsetSingleRLockPage(Relation relation,
+		       ItemPointer itemPointer);
+extern void RelationSetRIntentLock(Relation relation);
+extern void RelationUnsetRIntentLock(Relation relation);
+extern void RelationSetWIntentLock(Relation relation);
+extern void RelationUnsetWIntentLock(Relation relation);
+extern void RelationSetLockForExtend(Relation relation);
+extern void RelationUnsetLockForExtend(Relation relation);
+extern void LRelIdAssign(LRelId *lRelId, Oid dbId, Oid relId);
+
+/* single.c */
+extern bool SingleLockReln(LockInfo linfo, LOCKT lockt, int action);
+extern bool SingleLockPage(LockInfo linfo, ItemPointer tidPtr,
+			   LOCKT lockt, int action);
+
+#endif	/* LMGR_H */