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Tom Lane 214c7a4f0b Fix some more bugs in signal handlers and process shutdown logic. ... WalSndKill was doing things exactly backwards: it should first clear MyWalSnd (to stop signal handlers from touching MyWalSnd->latch), then disown the latch, and only then mark the WalSnd struct unused by clearing its pid field. Also, WalRcvSigUsr1Handler and worker_spi_sighup failed to preserve errno, which is surely a requirement for any signal handler. Per discussion of recent buildfarm failures. Back-patch as far as the relevant code exists.		12 years ago
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Makefile	Allow background workers to be started dynamically.	12 years ago
worker_spi--1.0.sql	Allow discovery of whether a dynamic background worker is running.	12 years ago
worker_spi.c	Fix some more bugs in signal handlers and process shutdown logic.	12 years ago
worker_spi.control	Allow background workers to be started dynamically.	12 years ago