Linux SRV-16 6.18.44-paas #1 SMP PREEMPT_DYNAMIC Thu Aug 13 10:08:12 UTC 2026 x86_64

/proc/self/root/opt/postgresql-9.6/include/server/storage/

//proc/self/root/opt/postgresql-9.6/include/server/storage/lockdefs.h

/*------------------------------------------------------------------------- * * lockdefs.h * Frontend exposed parts of postgres' low level lock mechanism * * The split between lockdefs.h and lock.h is not very principled. This file * contains definition that have to (indirectly) be available when included by * FRONTEND code. * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/storage/lockdefs.h * *------------------------------------------------------------------------- */ #ifndef LOCKDEFS_H_ #define LOCKDEFS_H_ /* * LOCKMODE is an integer (1..N) indicating a lock type. LOCKMASK is a bit * mask indicating a set of held or requested lock types (the bit 1<<mode * corresponds to a particular lock mode). */ typedef int LOCKMASK; typedef int LOCKMODE; /* * These are the valid values of type LOCKMODE for all the standard lock * methods (both DEFAULT and USER). */ /* NoLock is not a lock mode, but a flag value meaning "don't get a lock" */ #define NoLock 0 #define AccessShareLock 1 /* SELECT */ #define RowShareLock 2 /* SELECT FOR UPDATE/FOR SHARE */ #define RowExclusiveLock 3 /* INSERT, UPDATE, DELETE */ #define ShareUpdateExclusiveLock 4 /* VACUUM (non-FULL),ANALYZE, CREATE * INDEX CONCURRENTLY */ #define ShareLock 5 /* CREATE INDEX (WITHOUT CONCURRENTLY) */ #define ShareRowExclusiveLock 6 /* like EXCLUSIVE MODE, but allows ROW * SHARE */ #define ExclusiveLock 7 /* blocks ROW SHARE/SELECT...FOR * UPDATE */ #define AccessExclusiveLock 8 /* ALTER TABLE, DROP TABLE, VACUUM * FULL, and unqualified LOCK TABLE */ typedef struct xl_standby_lock { TransactionId xid; /* xid of holder of AccessExclusiveLock */ Oid dbOid; Oid relOid; } xl_standby_lock; #endif /* LOCKDEF_H_ */