| Server IP : 85.214.239.14 / Your IP : 18.119.28.173 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /proc/2/cwd/proc/2/root/proc/2/cwd/usr/include/postgresql/9.6/server/storage/ |
Upload File : |
/*------------------------------------------------------------------------- * * predicate.h * POSTGRES public predicate locking definitions. * * * Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/storage/predicate.h * *------------------------------------------------------------------------- */ #ifndef PREDICATE_H #define PREDICATE_H #include "utils/relcache.h" #include "utils/snapshot.h" /* * GUC variables */ extern int max_predicate_locks_per_xact; /* Number of SLRU buffers to use for predicate locking */ #define NUM_OLDSERXID_BUFFERS 16 /* * function prototypes */ /* housekeeping for shared memory predicate lock structures */ extern void InitPredicateLocks(void); extern Size PredicateLockShmemSize(void); extern void CheckPointPredicate(void); /* predicate lock reporting */ extern bool PageIsPredicateLocked(Relation relation, BlockNumber blkno); /* predicate lock maintenance */ extern Snapshot GetSerializableTransactionSnapshot(Snapshot snapshot); extern void SetSerializableTransactionSnapshot(Snapshot snapshot, TransactionId sourcexid); extern void RegisterPredicateLockingXid(TransactionId xid); extern void PredicateLockRelation(Relation relation, Snapshot snapshot); extern void PredicateLockPage(Relation relation, BlockNumber blkno, Snapshot snapshot); extern void PredicateLockTuple(Relation relation, HeapTuple tuple, Snapshot snapshot); extern void PredicateLockPageSplit(Relation relation, BlockNumber oldblkno, BlockNumber newblkno); extern void PredicateLockPageCombine(Relation relation, BlockNumber oldblkno, BlockNumber newblkno); extern void TransferPredicateLocksToHeapRelation(Relation relation); extern void ReleasePredicateLocks(bool isCommit); /* conflict detection (may also trigger rollback) */ extern void CheckForSerializableConflictOut(bool valid, Relation relation, HeapTuple tuple, Buffer buffer, Snapshot snapshot); extern void CheckForSerializableConflictIn(Relation relation, HeapTuple tuple, Buffer buffer); extern void CheckTableForSerializableConflictIn(Relation relation); /* final rollback checking */ extern void PreCommit_CheckForSerializationFailure(void); /* two-phase commit support */ extern void AtPrepare_PredicateLocks(void); extern void PostPrepare_PredicateLocks(TransactionId xid); extern void PredicateLockTwoPhaseFinish(TransactionId xid, bool isCommit); extern void predicatelock_twophase_recover(TransactionId xid, uint16 info, void *recdata, uint32 len); #endif /* PREDICATE_H */