pgsql-server/ oc/src/sgml/runtime.sgml rc/back ...

CVSROOT:    /cvsroot
Module name:    pgsql-server
Changes by:    tgl@svr1.postgresql.org    04/02/23 16:45:59

Modified files:
    doc/src/sgml   : runtime.sgml
    src/backend/postmaster: postmaster.c
    src/backend/storage/file: fd.c
    src/backend/utils/misc: guc.c
    src/include/storage: fd.h

Log message:
    Do a direct probe during postmaster startup to determine the maximum
    number of openable files and the number already opened.  This eliminates
    depending on sysconf(_SC_OPEN_MAX), and allows much saner behavior on
    platforms where open-file slots are used up by semaphores.