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Thomas Munro fb9a16a1a6 Fix min_dynamic_shared_memory on Windows. 
When min_dynamic_shared_memory is set above 0, we try to find space in a
pre-allocated region of the main shared memory area instead of calling
dsm_impl_XXX() routines to allocate more.  The dsm_pin_segment() and
dsm_unpin_segment() routines had a bug: they called dsm_impl_XXX()
routines even for main region segments.  Nobody noticed before now
because those routines do nothing on Unix, but on Windows they'd fail
while attempting to duplicate an invalid Windows HANDLE.  Add the
missing gating.

Back-patch to 14, where commit 84b1c63a added this feature.  Fixes
pgsql-bugs bug #18165.

Reported-by: Maxime Boyer <maxime.boyer@cra-arc.gc.ca>
Tested-by: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/18165-bf4f525cea6e51de%40postgresql.org
2023-10-22 10:05:59 +13:00
..
backend Fix min_dynamic_shared_memory on Windows. 2023-10-22 10:05:59 +13:00
bin Don't spuriously report FD_SETSIZE exhaustion on Windows. 2023-10-14 15:54:49 -07:00
common Improve pglz_decompress's defenses against corrupt compressed data. 2023-10-18 20:43:17 -04:00
fe_utils Don't spuriously report FD_SETSIZE exhaustion on Windows. 2023-10-14 15:54:49 -07:00
include jit: Supply LLVMGlobalGetValueType() for LLVM < 8. 2023-10-19 03:03:46 +13:00
interfaces Translation updates 2023-05-08 14:33:02 +02:00
makefiles Add NO_INSTALL option to pgxs 2021-05-27 13:58:29 +02:00
pl Remove environment sensitivity in pl/tcl regression test. 2023-09-29 20:20:57 -04:00
port Fix detection of unseekable files for fseek() and ftello() with MSVC 2023-04-12 09:09:58 +09:00
template On NetBSD, force dynamic symbol resolution at postmaster start. 2022-08-30 17:29:03 -04:00
test Back-patch test cases for timetz_zone/timetz_izone. 2023-10-17 13:55:45 -04:00
timezone Update time zone data files to tzdata release 2023c. 2023-04-18 14:46:39 -04:00
tools Fix exception safety bug in typcache.c. 2023-09-13 14:46:16 +12:00
tutorial Doc: sync src/tutorial/basics.source with SGML documentation. 2022-11-19 13:09:14 -05:00
.gitignore
DEVELOPERS
Makefile Remove the option to build thread_test.c outside configure. 2020-10-21 12:08:48 -04:00
Makefile.global.in Suppress macOS warnings about duplicate libraries in link commands. 2023-09-29 14:07:30 -04:00
Makefile.shlib Stop using "-multiply_defined suppress" on macOS. 2023-09-26 21:06:21 -04:00
nls-global.mk Add errhint_plural() function and make use of it 2021-03-31 09:16:25 +02:00