Avoid passing function pointers across process boundaries.
We'd already recognized that we can't pass function pointers across process
boundaries for functions in loadable modules, since a shared library could
get loaded at different addresses in different processes. But actually the
practice doesn't work for functions in the core backend either, if we're
using EXEC_BACKEND. This is the cause of recent failures on buildfarm
member culicidae. Switch to passing a string function name in all cases.
Something like this needs to be back-patched into 9.6, but let's see
if the buildfarm likes it first.
Petr Jelinek, with a bunch of basically-cosmetic adjustments by me
Discussion: https://postgr.es/m/548f9c1d-eafa-e3fa-9da8-f0cc2f654e60@2ndquadrant.com
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/32470825d36d99a81347ee36c181d609c952c061
Modified Files
--------------
src/backend/access/transam/README.parallel | 2 +-
src/backend/access/transam/parallel.c | 193 ++++++++++++++++-------------
src/backend/executor/execParallel.c | 7 +-
src/backend/postmaster/bgworker.c | 105 +++++++++-------
src/backend/utils/fmgr/dfmgr.c | 15 ++-
src/backend/utils/fmgr/fmgr.c | 2 +-
src/include/access/parallel.h | 4 +-
src/include/executor/execParallel.h | 2 +
src/include/fmgr.h | 6 +-
9 files changed, 187 insertions(+), 149 deletions(-)