At Tue, 27 Sep 2022 11:33:56 +0530, Bharath Rupireddy <bharath.rupireddyforpostg...@gmail.com> wrote in > On Mon, Sep 26, 2022 at 7:34 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > > This ... seems like inventing your own shape of wheel. The > > normal mechanism for preventing this type of leak is to put the > > allocations in a memory context that can be reset or deallocated > > in mainline code at the end of the operation. > > Yes, that's the typical way and the patch attached does it for > perform_base_backup(). What happens if we allocate some memory in the > new memory context and error-out before reaching the end of operation? > How do we deallocate such memory?
Whoever directly or indirectly catches the exception can do that. For example, SendBaseBackup() seems to catch execptions from perform_base_backup(). bbsinc_cleanup() is already resides there. regards. -- Kyotaro Horiguchi NTT Open Source Software Center