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Tom Lane 8274f45176 Refactor CHECK_FOR_INTERRUPTS() to add flexibility. 
Split up CHECK_FOR_INTERRUPTS() to provide an additional macro
INTERRUPTS_PENDING_CONDITION(), which just tests whether an
interrupt is pending without attempting to service it.  This is
useful in situations where the caller knows that interrupts are
blocked, and would like to find out if it's worth the trouble
to unblock them.

Also add INTERRUPTS_CAN_BE_PROCESSED(), which indicates whether
CHECK_FOR_INTERRUPTS() can be relied on to clear the pending interrupt.

This commit doesn't actually add any uses of the new macros,
but a follow-on bug fix will do so.  Back-patch to all supported
branches to provide infrastructure for that fix.

Alvaro Herrera and Tom Lane

Discussion: https://postgr.es/m/20210513155351.GA7848@alvherre.pgsql
2021-05-14 12:54:26 -04:00
..
backend Refactor CHECK_FOR_INTERRUPTS() to add flexibility. 2021-05-14 12:54:26 -04:00
bin Translation updates 2021-05-10 14:28:42 +02:00
common Replace use of sys_siglist[] with strsignal(). 2020-07-15 22:05:12 -04:00
fe_utils Fix translation of special characters in psql's LaTeX output modes. 2018-11-26 17:32:51 -05:00
include Refactor CHECK_FOR_INTERRUPTS() to add flexibility. 2021-05-14 12:54:26 -04:00
interfaces Stamp 11.12. 2021-05-10 16:45:49 -04:00
makefiles Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:36 -04:00
pl Redesign the caching done by get_cached_rowtype(). 2021-04-13 13:37:07 -04:00
port Stamp 11.12. 2021-05-10 16:45:49 -04:00
template Further tweaking of PG_SYSROOT heuristics for macOS. 2021-01-20 12:07:41 -05:00
test Fix mishandling of resjunk columns in ON CONFLICT ... UPDATE tlists. 2021-05-10 11:02:29 -04:00
timezone Update time zone data files to tzdata release 2021a. 2021-01-24 16:29:47 -05:00
tools backpatch "jit: Add support for LLVM 12." 2020-12-07 18:40:27 -08:00
tutorial tutorial: land height is "elevation", not "altitude" 2021-03-10 20:25:18 -05:00
.gitignore
DEVELOPERS
Makefile Fix partial-build problems introduced by having more generated headers. 2018-04-09 16:42:10 -04:00
Makefile.global.in Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:36 -04:00
Makefile.shlib Ensure static libraries have correct mod time even if ranlib messes it up. 2018-11-29 15:53:44 -05:00
nls-global.mk nls-global.mk: search build dir for source files, too 2016-06-07 18:55:18 -04:00