Request a Demo
Home   >   mailing lists

[GENERAL] Difficult while acquiring LWLocks - Mailing list pgsql-general

From hariprasath nallasamy
Subject [GENERAL] Difficult while acquiring LWLocks
Date
Msg-id CAGgejVy=-isk66MVE+TsAzVGaPRD_ijSf3zrF6Ks2+_BRvhNWQ@mail.gmail.com
Whole thread Raw
Responses Re: [GENERAL] Difficult while acquiring LWLocks
List pgsql-general
Tree view
Hi all
   There is an use case, where i want some 10 LightWeight Locks and after 9.6 LW locks api's (LWLockAssign) are changed a bit and i am confused too.

 Only reference i cant get was from pg_stat_statement :(

Since GetNamedLWLockTranche method will return the base address of the specified tranche.

From pg_init
" RequestNamedLWLockTranche("Some_10_LWLocks", 10); "


For getting those locks which were requested from pg_init
" LWLockPadded *lwLockPadded = GetNamedLWLockTranche("Some_10_LWLocks");
   LWLock *lock = &(lwLockPadded[index in 0 to 9]).lock; "

Is the above code snippet a valid for requesting some 10 LWLocks?


TIA
 harry

pgsql-general by date:

Previous
From: Thomas Güttler
Date:
Subject: [GENERAL] Caching and Blobs in PG? Was: Can PG replace redis, amqp, s3 in thefuture?
Next
From: Julien Rouhaud
Date:
Subject: Re: [GENERAL] Difficult while acquiring LWLocks