Gecko [ vercredx.com ]

Name	Size	Permission	Date
GL	[ DIR ]	drwxr-xr-x	2025-05-01 13:36
X11	[ DIR ]	drwxr-xr-x	2025-05-01 13:36
apache2	[ DIR ]	drwxr-xr-x	2026-02-06 09:30
arpa	[ DIR ]	drwxr-xr-x	2026-03-19 18:10
asm	[ DIR ]	drwxr-xr-x	2026-03-31 08:34
asm-generic	[ DIR ]	drwxr-xr-x	2026-03-31 08:34
bind9	[ DIR ]	drwxr-xr-x	2025-11-07 18:06
bits	[ DIR ]	drwxr-xr-x	2026-03-19 18:10
bsock	[ DIR ]	drwxr-xr-x	2025-05-01 12:21
c++	[ DIR ]	drwxr-xr-x	2025-08-26 09:44
criu	[ DIR ]	drwxr-xr-x	2025-04-30 11:09
curl	[ DIR ]	drwxr-xr-x	2026-03-27 08:30
drm	[ DIR ]	drwxr-xr-x	2026-03-31 08:34
e2p	[ DIR ]	drwxr-xr-x	2025-10-10 08:32
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fontconfig	[ DIR ]	drwxr-xr-x	2025-05-01 13:36
freetype2	[ DIR ]	drwxr-xr-x	2025-05-01 13:36
fstrm	[ DIR ]	drwxr-xr-x	2025-05-01 13:37
gdb	[ DIR ]	drwxr-xr-x	2025-05-12 12:27
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google	[ DIR ]	drwxr-xr-x	2025-05-01 13:36
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libpq	[ DIR ]	drwxr-xr-x	2026-01-19 18:06
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ncurses	[ DIR ]	drwxr-xr-x	2025-05-01 13:37
ncursesw	[ DIR ]	drwxr-xr-x	2025-05-01 13:37
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netash	[ DIR ]	drwxr-xr-x	2026-03-19 18:10
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netax25	[ DIR ]	drwxr-xr-x	2026-03-19 18:10
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perf	[ DIR ]	drwxr-xr-x	2026-03-31 08:34
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python2.7	[ DIR ]	drwxr-xr-x	2025-04-30 11:08
python3.6m	[ DIR ]	drwxr-xr-x	2026-04-03 18:10
python3.8	[ DIR ]	drwxr-xr-x	2025-05-12 12:24
rdma	[ DIR ]	drwxr-xr-x	2026-03-31 08:34
rpc	[ DIR ]	drwxr-xr-x	2026-03-19 18:10
sasl	[ DIR ]	drwxr-xr-x	2025-04-30 11:08
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webp	[ DIR ]	drwxr-xr-x	2025-06-04 08:39
xcb	[ DIR ]	drwxr-xr-x	2025-05-01 13:36
xen	[ DIR ]	drwxr-xr-x	2026-03-31 08:34
FlexLexer.h	6.73 KB	-rw-r--r--	2019-10-12 12:33
a.out.h	4.25 KB	-rw-r--r--	2026-03-17 16:54
aio.h	7.28 KB	-rw-r--r--	2026-03-17 16:54
aliases.h	1.98 KB	-rw-r--r--	2026-03-17 16:54
alloca.h	1.17 KB	-rw-r--r--	2026-03-17 16:54
ar.h	1.69 KB	-rw-r--r--	2026-03-17 16:54
argp.h	24.82 KB	-rw-r--r--	2026-03-17 16:54
argz.h	5.91 KB	-rw-r--r--	2026-03-17 16:54
assert.h	4.45 KB	-rw-r--r--	2026-03-17 16:54
autosprintf.h	2.33 KB	-rw-r--r--	2019-11-18 17:16
byteswap.h	1.37 KB	-rw-r--r--	2026-03-17 16:54
bzlib.h	6.1 KB	-rw-r--r--	2010-09-10 23:08
com_err.h	2.07 KB	-rw-r--r--	2020-03-21 04:24
complex.h	7 KB	-rw-r--r--	2026-03-17 16:54
cpio.h	2.21 KB	-rw-r--r--	2026-03-17 16:54
cpuidle.h	844 B	-rw-r--r--	2026-03-05 20:58
crypt.h	8.9 KB	-rw-r--r--	2021-10-09 04:04
ctype.h	10.71 KB	-rw-r--r--	2026-03-17 16:54
curses.h	97.29 KB	-rw-r--r--	2023-10-14 18:54
cursesapp.h	6.62 KB	-rw-r--r--	2023-10-14 18:54
cursesf.h	27.2 KB	-rw-r--r--	2023-10-14 18:54
cursesm.h	19.22 KB	-rw-r--r--	2023-10-14 18:54
cursesp.h	8.4 KB	-rw-r--r--	2023-10-14 18:54
cursesw.h	48.55 KB	-rw-r--r--	2023-10-14 18:54
cursslk.h	7.13 KB	-rw-r--r--	2023-10-14 18:54
db.h	120.22 KB	-r--r--r--	2021-09-21 16:29
db_185.h	5.84 KB	-r--r--r--	2021-09-21 16:29
dbm.h	1.38 KB	-rw-r--r--	2022-10-08 13:22
dirent.h	12.19 KB	-rw-r--r--	2026-03-17 16:54
dlfcn.h	7.07 KB	-rw-r--r--	2026-03-17 16:54
elf.h	170.73 KB	-rw-r--r--	2026-03-17 16:54
endian.h	3.11 KB	-rw-r--r--	2026-03-17 16:54
entities.h	4.81 KB	-rw-r--r--	2017-08-30 11:05
envz.h	2.8 KB	-rw-r--r--	2026-03-17 16:54
err.h	2.16 KB	-rw-r--r--	2026-03-17 16:54
errno.h	1.64 KB	-rw-r--r--	2026-03-17 16:54
error.h	1.99 KB	-rw-r--r--	2026-03-17 16:54
eti.h	2.82 KB	-rw-r--r--	2023-10-14 18:54
etip.h	9.47 KB	-rw-r--r--	2023-10-14 18:54
evdns.h	1.97 KB	-rw-r--r--	2019-10-12 00:29
event.h	2.68 KB	-rw-r--r--	2019-10-12 00:29
evhttp.h	1.99 KB	-rw-r--r--	2019-10-12 00:29
evrpc.h	1.97 KB	-rw-r--r--	2019-10-12 00:29
evutil.h	1.74 KB	-rw-r--r--	2019-10-12 00:29
execinfo.h	1.49 KB	-rw-r--r--	2026-03-17 16:54
expat.h	43.24 KB	-rw-r--r--	2025-11-20 07:31
expat_config.h	3.82 KB	-rw-r--r--	2025-11-20 07:31
expat_external.h	5.89 KB	-rw-r--r--	2025-11-20 07:31
fcntl.h	10.7 KB	-rw-r--r--	2026-03-17 16:54
features.h	15.69 KB	-rw-r--r--	2026-03-17 16:54
fenv.h	5.72 KB	-rw-r--r--	2026-03-17 16:54
fmtmsg.h	3.16 KB	-rw-r--r--	2026-03-17 16:54
fnmatch.h	2.24 KB	-rw-r--r--	2026-03-17 16:54
form.h	18.17 KB	-rw-r--r--	2023-10-14 18:54
fpu_control.h	3.5 KB	-rw-r--r--	2026-03-17 16:54
fstab.h	3.04 KB	-rw-r--r--	2026-03-17 16:54
fstrm.h	12.71 KB	-rw-r--r--	2019-03-11 20:58
fts.h	8.18 KB	-rw-r--r--	2026-03-17 16:54
ftw.h	5.13 KB	-rw-r--r--	2026-03-17 16:54
gconv.h	4.31 KB	-rw-r--r--	2026-03-17 16:54
gcrypt.h	68.71 KB	-rw-r--r--	2022-06-28 11:54
gd.h	56.42 KB	-rw-r--r--	2017-08-30 11:05
gd_color_map.h	478 B	-rw-r--r--	2017-08-30 11:05
gd_errors.h	1.47 KB	-rw-r--r--	2017-08-30 11:05
gd_io.h	3.05 KB	-rw-r--r--	2017-08-30 11:05
gdbm.h	10.1 KB	-rw-r--r--	2022-10-08 13:22
gdcache.h	2.83 KB	-rw-r--r--	2017-08-30 11:05
gdfontg.h	553 B	-rw-r--r--	2017-08-30 11:05
gdfontl.h	551 B	-rw-r--r--	2017-08-30 11:05
gdfontmb.h	519 B	-rw-r--r--	2017-08-30 11:05
gdfonts.h	515 B	-rw-r--r--	2017-08-30 11:05
gdfontt.h	546 B	-rw-r--r--	2017-08-30 11:05
gdfx.h	497 B	-rw-r--r--	2017-08-30 11:05
gdpp.h	50.94 KB	-rw-r--r--	2017-08-30 11:05
getopt.h	1.43 KB	-rw-r--r--	2026-03-17 16:54
gettext-po.h	15.17 KB	-rw-r--r--	2019-11-18 17:17
glob.h	6.46 KB	-rw-r--r--	2026-03-17 16:54
gnu-versions.h	2.29 KB	-rw-r--r--	2026-03-17 16:54
gnumake.h	2.84 KB	-rw-r--r--	2022-04-18 16:38
gpg-error.h	66.29 KB	-rw-r--r--	2019-10-12 12:20
gpgrt.h	66.29 KB	-rw-r--r--	2019-10-12 12:20
grp.h	6.53 KB	-rw-r--r--	2026-03-17 16:54
gshadow.h	4.42 KB	-rw-r--r--	2026-03-17 16:54
gssapi.h	181 B	-rw-r--r--	2025-06-03 02:06
iconv.h	1.81 KB	-rw-r--r--	2026-03-17 16:54
idn-free.h	2.41 KB	-rw-r--r--	2019-10-13 16:55
idn-int.h	20 B	-rw-r--r--	2019-10-13 16:55
idna.h	3.48 KB	-rw-r--r--	2019-10-13 16:55
ieee754.h	4.79 KB	-rw-r--r--	2026-03-17 16:54
ifaddrs.h	2.77 KB	-rw-r--r--	2026-03-17 16:54
inttypes.h	11.61 KB	-rw-r--r--	2026-03-17 16:54
jconfig-64.h	2.17 KB	-rw-r--r--	2025-05-14 12:43
jconfig.h	246 B	-rw-r--r--	2025-05-14 12:43
jerror.h	14.73 KB	-rw-r--r--	2025-05-14 12:43
jmorecfg.h	14.7 KB	-rw-r--r--	2025-05-14 12:43
jpegint.h	15.22 KB	-rw-r--r--	2025-05-14 12:43
jpeglib.h	48.71 KB	-rw-r--r--	2025-05-14 12:43
kdb.h	67.66 KB	-rw-r--r--	2025-06-03 02:06
keyutils.h	7.52 KB	-rw-r--r--	2021-10-08 13:50
krad.h	8.72 KB	-rw-r--r--	2025-06-03 02:06
krb5.h	402 B	-rw-r--r--	2025-06-03 02:06
langinfo.h	17.43 KB	-rw-r--r--	2026-03-17 16:54
lastlog.h	126 B	-rw-r--r--	2026-03-17 16:54
lber.h	14.95 KB	-rw-r--r--	2025-03-11 09:44
lber_types.h	1.43 KB	-rw-r--r--	2025-03-11 09:44
ldap.h	63.57 KB	-rw-r--r--	2025-03-11 09:44
ldap_cdefs.h	9.24 KB	-rw-r--r--	2025-03-11 09:44
ldap_features.h	1.77 KB	-rw-r--r--	2025-03-11 09:44
ldap_schema.h	9.23 KB	-rw-r--r--	2025-03-11 09:44
ldap_utf8.h	3.39 KB	-rw-r--r--	2025-03-11 09:44
ldif.h	4.58 KB	-rw-r--r--	2025-03-11 09:44
libaio.h	8.73 KB	-rw-r--r--	2019-11-13 13:59
libgen.h	1.35 KB	-rw-r--r--	2026-03-17 16:54
libintl.h	4.47 KB	-rw-r--r--	2026-03-17 16:54
libpq-events.h	2.16 KB	-rw-r--r--	2025-11-10 21:59
libpq-fe.h	22.79 KB	-rw-r--r--	2025-11-10 21:59
limits.h	5.29 KB	-rw-r--r--	2026-03-17 16:54
link.h	7.05 KB	-rw-r--r--	2026-03-17 16:54
locale.h	7.49 KB	-rw-r--r--	2026-03-17 16:54
ltdl.h	5.58 KB	-rw-r--r--	2019-10-11 14:55
lzma.h	9.59 KB	-rw-r--r--	2018-04-29 15:10
malloc.h	5.96 KB	-rw-r--r--	2026-03-17 16:54
math.h	52.07 KB	-rw-r--r--	2026-03-17 16:54
mcheck.h	2.38 KB	-rw-r--r--	2026-03-17 16:54
memory.h	955 B	-rw-r--r--	2026-03-17 16:54
menu.h	11.91 KB	-rw-r--r--	2023-10-14 18:54
mntent.h	3.28 KB	-rw-r--r--	2026-03-17 16:54
monetary.h	1.76 KB	-rw-r--r--	2026-03-17 16:54
mqueue.h	3.67 KB	-rw-r--r--	2026-03-17 16:54
nc_tparm.h	4.1 KB	-rw-r--r--	2023-10-14 18:54
ncurses.h	97.29 KB	-rw-r--r--	2023-10-14 18:54
ncurses_dll.h	4.18 KB	-rw-r--r--	2023-10-14 18:54
ndbm.h	2.4 KB	-rw-r--r--	2022-10-08 13:22
netdb.h	27.44 KB	-rw-r--r--	2026-03-17 16:54
nl_types.h	1.71 KB	-rw-r--r--	2026-03-17 16:54
nss.h	1.83 KB	-rw-r--r--	2026-03-17 16:54
obstack.h	20.81 KB	-rw-r--r--	2026-03-17 16:54
panel.h	4.03 KB	-rw-r--r--	2023-10-14 18:54
paths.h	2.91 KB	-rw-r--r--	2026-03-17 16:54
pcre.h	30.97 KB	-rw-r--r--	2021-10-08 19:17
pcre2.h	43.75 KB	-rw-r--r--	2022-08-02 16:07
pcre2posix.h	5.67 KB	-rw-r--r--	2022-08-02 16:07
pcre_scanner.h	6.45 KB	-rw-r--r--	2021-10-08 19:17
pcre_stringpiece.h	6.16 KB	-rw-r--r--	2021-10-08 19:17
pcrecpp.h	25.91 KB	-rw-r--r--	2021-10-08 19:17
pcrecpparg.h	6.62 KB	-rw-r--r--	2021-10-08 19:17
pcreposix.h	5.32 KB	-rw-r--r--	2021-10-08 19:17
pg_config-x86_64.h	31.77 KB	-rw-r--r--	2026-01-15 14:59
pg_config.h	1.21 KB	-rw-r--r--	2026-01-15 14:59
pg_config_ext-x86_64.h	323 B	-rw-r--r--	2026-01-15 14:59
pg_config_ext.h	1.24 KB	-rw-r--r--	2026-01-15 14:59
pg_config_manual.h	12.71 KB	-rw-r--r--	2026-01-15 14:59
pg_config_os.h	1.03 KB	-rw-r--r--	2025-11-10 21:59
png.h	140.77 KB	-rw-r--r--	2026-03-17 10:55
pngconf.h	22.31 KB	-rw-r--r--	2026-03-17 10:55
pnglibconf.h	7.39 KB	-rw-r--r--	2026-03-17 10:55
poll.h	22 B	-rw-r--r--	2026-03-17 16:54
postgres_ext.h	2.19 KB	-rw-r--r--	2025-11-10 21:59
pr29.h	2.07 KB	-rw-r--r--	2019-10-13 16:55
printf.h	6.64 KB	-rw-r--r--	2026-03-17 16:54
proc_service.h	3.39 KB	-rw-r--r--	2026-03-17 16:54
profile.h	11.87 KB	-rw-r--r--	2025-06-03 02:06
pthread.h	40.3 KB	-rw-r--r--	2026-03-17 16:54
pty.h	1.53 KB	-rw-r--r--	2026-03-17 16:54
punycode.h	9.16 KB	-rw-r--r--	2019-10-13 16:55
pwd.h	6.01 KB	-rw-r--r--	2026-03-17 16:54
re_comp.h	962 B	-rw-r--r--	2026-03-17 16:54
regex.h	24.14 KB	-rw-r--r--	2026-03-17 16:54
regexp.h	1.41 KB	-rw-r--r--	2026-03-17 16:54
resolv.h	11.87 KB	-rw-r--r--	2026-03-17 16:54
sched.h	4.62 KB	-rw-r--r--	2026-03-17 16:54
search.h	5.1 KB	-rw-r--r--	2026-03-17 16:54
semaphore.h	2.34 KB	-rw-r--r--	2026-03-17 16:54
setjmp.h	3.58 KB	-rw-r--r--	2026-03-17 16:54
sgtty.h	1.31 KB	-rw-r--r--	2026-03-17 16:54
shadow.h	5.34 KB	-rw-r--r--	2026-03-17 16:54
signal.h	11.96 KB	-rw-r--r--	2026-03-17 16:54
slapi-plugin.h	37.45 KB	-rw-r--r--	2025-03-11 09:44
spawn.h	6.53 KB	-rw-r--r--	2026-03-17 16:54
stab.h	264 B	-rw-r--r--	2026-03-17 16:54
stdc-predef.h	2.24 KB	-rw-r--r--	2026-03-17 16:54
stdint.h	8.27 KB	-rw-r--r--	2026-03-17 16:54
stdio.h	29.46 KB	-rw-r--r--	2026-03-17 16:54
stdio_ext.h	2.73 KB	-rw-r--r--	2026-03-17 16:54
stdlib.h	34.82 KB	-rw-r--r--	2026-03-17 16:54
string.h	17.17 KB	-rw-r--r--	2026-03-17 16:54
stringprep.h	8.03 KB	-rw-r--r--	2019-10-13 16:55
strings.h	4.64 KB	-rw-r--r--	2026-03-17 16:54
syscall.h	25 B	-rw-r--r--	2026-03-17 16:54
sysexits.h	5.11 KB	-rw-r--r--	2026-03-17 16:54
syslog.h	24 B	-rw-r--r--	2026-03-17 16:54
tar.h	3.7 KB	-rw-r--r--	2026-03-17 16:54
term.h	40.22 KB	-rw-r--r--	2023-10-14 18:54
term_entry.h	8.55 KB	-rw-r--r--	2023-10-14 18:54
termcap.h	3.39 KB	-rw-r--r--	2023-10-14 18:54
termio.h	214 B	-rw-r--r--	2026-03-17 16:54
termios.h	3.51 KB	-rw-r--r--	2026-03-17 16:54
tgmath.h	30.75 KB	-rw-r--r--	2026-03-17 16:54
thread_db.h	15.65 KB	-rw-r--r--	2026-03-17 16:54
threads.h	6.5 KB	-rw-r--r--	2026-03-17 16:54
tic.h	13.32 KB	-rw-r--r--	2023-10-14 18:54
tiff.h	35.14 KB	-rw-r--r--	2025-11-11 10:27
tiffconf-64.h	3.35 KB	-rw-r--r--	2025-11-11 10:27
tiffconf.h	250 B	-rw-r--r--	2025-11-11 10:27
tiffio.h	22.68 KB	-rw-r--r--	2025-11-11 10:27
tiffio.hxx	1.66 KB	-rw-r--r--	2025-11-11 10:27
tiffvers.h	410 B	-rw-r--r--	2025-11-11 10:27
time.h	10.12 KB	-rw-r--r--	2026-03-17 16:54
tld.h	4.54 KB	-rw-r--r--	2019-10-13 16:55
ttyent.h	2.44 KB	-rw-r--r--	2026-03-17 16:54
uchar.h	1.95 KB	-rw-r--r--	2026-03-17 16:54
ucontext.h	1.99 KB	-rw-r--r--	2026-03-17 16:54
ulimit.h	1.55 KB	-rw-r--r--	2026-03-17 16:54
unctrl.h	3.03 KB	-rw-r--r--	2023-10-14 18:54
unistd.h	41.74 KB	-rw-r--r--	2026-03-17 16:54
utime.h	1.47 KB	-rw-r--r--	2026-03-17 16:54
utmp.h	3.15 KB	-rw-r--r--	2026-03-17 16:54
utmpx.h	4 KB	-rw-r--r--	2026-03-17 16:54
values.h	1.91 KB	-rw-r--r--	2026-03-17 16:54
verto-module.h	6.48 KB	-rw-r--r--	2022-10-08 07:49
verto.h	18.98 KB	-rw-r--r--	2022-10-08 07:49
wait.h	22 B	-rw-r--r--	2026-03-17 16:54
wchar.h	30.38 KB	-rw-r--r--	2026-03-17 16:54
wctype.h	5.42 KB	-rw-r--r--	2026-03-17 16:54
wordexp.h	2.44 KB	-rw-r--r--	2026-03-17 16:54
zconf.h	15.88 KB	-rw-r--r--	2023-10-11 22:02
zlib.h	94 KB	-rw-r--r--	2023-10-11 22:02

Rename

/*------------------------------------------------------------------------
 * PostgreSQL manual configuration settings
 *
 * This file contains various configuration symbols and limits.  In
 * all cases, changing them is only useful in very rare situations or
 * for developers.  If you edit any of these, be sure to do a *full*
 * rebuild (and an initdb if noted).
 *
 * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * src/include/pg_config_manual.h
 *------------------------------------------------------------------------
 */

/*
 * This is the default value for wal_segment_size to be used when initdb is run
 * without the --wal-segsize option.  It must be a valid segment size.
 */
#define DEFAULT_XLOG_SEG_SIZE	(16*1024*1024)

/*
 * Maximum length for identifiers (e.g. table names, column names,
 * function names).  Names actually are limited to one less byte than this,
 * because the length must include a trailing zero byte.
 *
 * Changing this requires an initdb.
 */
#define NAMEDATALEN 64

/*
 * Maximum number of arguments to a function.
 *
 * The minimum value is 8 (GIN indexes use 8-argument support functions).
 * The maximum possible value is around 600 (limited by index tuple size in
 * pg_proc's index; BLCKSZ larger than 8K would allow more).  Values larger
 * than needed will waste memory and processing time, but do not directly
 * cost disk space.
 *
 * Changing this does not require an initdb, but it does require a full
 * backend recompile (including any user-defined C functions).
 */
#define FUNC_MAX_ARGS		100

/*
 * Maximum number of columns in an index.  There is little point in making
 * this anything but a multiple of 32, because the main cost is associated
 * with index tuple header size (see access/itup.h).
 *
 * Changing this requires an initdb.
 */
#define INDEX_MAX_KEYS		32

/*
 * Maximum number of columns in a partition key
 */
#define PARTITION_MAX_KEYS	32

/*
 * Decide whether built-in 8-byte types, including float8, int8, and
 * timestamp, are passed by value.  This is on by default if sizeof(Datum) >=
 * 8 (that is, on 64-bit platforms).  If sizeof(Datum) < 8 (32-bit platforms),
 * this must be off.  We keep this here as an option so that it is easy to
 * test the pass-by-reference code paths on 64-bit platforms.
 *
 * Changing this requires an initdb.
 */
#if SIZEOF_VOID_P >= 8
#define USE_FLOAT8_BYVAL 1
#endif

/*
 * When we don't have native spinlocks, we use semaphores to simulate them.
 * Decreasing this value reduces consumption of OS resources; increasing it
 * may improve performance, but supplying a real spinlock implementation is
 * probably far better.
 */
#define NUM_SPINLOCK_SEMAPHORES		128

/*
 * When we have neither spinlocks nor atomic operations support we're
 * implementing atomic operations on top of spinlock on top of semaphores. To
 * be safe against atomic operations while holding a spinlock separate
 * semaphores have to be used.
 */
#define NUM_ATOMICS_SEMAPHORES		64

/*
 * MAXPGPATH: standard size of a pathname buffer in PostgreSQL (hence,
 * maximum usable pathname length is one less).
 *
 * We'd use a standard system header symbol for this, if there weren't
 * so many to choose from: MAXPATHLEN, MAX_PATH, PATH_MAX are all
 * defined by different "standards", and often have different values
 * on the same platform!  So we just punt and use a reasonably
 * generous setting here.
 */
#define MAXPGPATH		1024

/*
 * PG_SOMAXCONN: maximum accept-queue length limit passed to
 * listen(2).  You'd think we should use SOMAXCONN from
 * <sys/socket.h>, but on many systems that symbol is much smaller
 * than the kernel's actual limit.  In any case, this symbol need be
 * twiddled only if you have a kernel that refuses large limit values,
 * rather than silently reducing the value to what it can handle
 * (which is what most if not all Unixen do).
 */
#define PG_SOMAXCONN	10000

/*
 * You can try changing this if you have a machine with bytes of
 * another size, but no guarantee...
 */
#define BITS_PER_BYTE		8

/*
 * Preferred alignment for disk I/O buffers.  On some CPUs, copies between
 * user space and kernel space are significantly faster if the user buffer
 * is aligned on a larger-than-MAXALIGN boundary.  Ideally this should be
 * a platform-dependent value, but for now we just hard-wire it.
 */
#define ALIGNOF_BUFFER	32

/*
 * If EXEC_BACKEND is defined, the postmaster uses an alternative method for
 * starting subprocesses: Instead of simply using fork(), as is standard on
 * Unix platforms, it uses fork()+exec() or something equivalent on Windows,
 * as well as lots of extra code to bring the required global state to those
 * new processes.  This must be enabled on Windows (because there is no
 * fork()).  On other platforms, it's only useful for verifying those
 * otherwise Windows-specific code paths.
 */
#if defined(WIN32) && !defined(__CYGWIN__)
#define EXEC_BACKEND
#endif

/*
 * Define this if your operating system supports link()
 */
#if !defined(WIN32) && !defined(__CYGWIN__)
#define HAVE_WORKING_LINK 1
#endif

/*
 * USE_POSIX_FADVISE controls whether Postgres will attempt to use the
 * posix_fadvise() kernel call.  Usually the automatic configure tests are
 * sufficient, but some older Linux distributions had broken versions of
 * posix_fadvise().  If necessary you can remove the #define here.
 */
#if HAVE_DECL_POSIX_FADVISE && defined(HAVE_POSIX_FADVISE)
#define USE_POSIX_FADVISE
#endif

/*
 * USE_PREFETCH code should be compiled only if we have a way to implement
 * prefetching.  (This is decoupled from USE_POSIX_FADVISE because there
 * might in future be support for alternative low-level prefetch APIs.
 * If you change this, you probably need to adjust the error message in
 * check_effective_io_concurrency.)
 */
#ifdef USE_POSIX_FADVISE
#define USE_PREFETCH
#endif

/*
 * Default and maximum values for backend_flush_after, bgwriter_flush_after
 * and checkpoint_flush_after; measured in blocks.  Currently, these are
 * enabled by default if sync_file_range() exists, ie, only on Linux.  Perhaps
 * we could also enable by default if we have mmap and msync(MS_ASYNC)?
 */
#ifdef HAVE_SYNC_FILE_RANGE
#define DEFAULT_BACKEND_FLUSH_AFTER 0	/* never enabled by default */
#define DEFAULT_BGWRITER_FLUSH_AFTER 64
#define DEFAULT_CHECKPOINT_FLUSH_AFTER 32
#else
#define DEFAULT_BACKEND_FLUSH_AFTER 0
#define DEFAULT_BGWRITER_FLUSH_AFTER 0
#define DEFAULT_CHECKPOINT_FLUSH_AFTER 0
#endif
/* upper limit for all three variables */
#define WRITEBACK_MAX_PENDING_FLUSHES 256

/*
 * USE_SSL code should be compiled only when compiling with an SSL
 * implementation.  (Currently, only OpenSSL is supported, but we might add
 * more implementations in the future.)
 */
#ifdef USE_OPENSSL
#define USE_SSL
#endif

/*
 * This is the default directory in which AF_UNIX socket files are
 * placed.  Caution: changing this risks breaking your existing client
 * applications, which are likely to continue to look in the old
 * directory.  But if you just hate the idea of sockets in /tmp,
 * here's where to twiddle it.  You can also override this at runtime
 * with the postmaster's -k switch.
 *
 * If set to an empty string, then AF_UNIX sockets are not used by default: A
 * server will not create an AF_UNIX socket unless the run-time configuration
 * is changed, a client will connect via TCP/IP by default and will only use
 * an AF_UNIX socket if one is explicitly specified.
 *
 * This is done by default on Windows because there is no good standard
 * location for AF_UNIX sockets and many installations on Windows don't
 * support them yet.
 */
#ifndef WIN32
#define DEFAULT_PGSOCKET_DIR  "/var/run/postgresql"
#else
#define DEFAULT_PGSOCKET_DIR ""
#endif

/*
 * This is the default event source for Windows event log.
 */
#define DEFAULT_EVENT_SOURCE  "PostgreSQL"

/*
 * The random() function is expected to yield values between 0 and
 * MAX_RANDOM_VALUE.  Currently, all known implementations yield
 * 0..2^31-1, so we just hardwire this constant.  We could do a
 * configure test if it proves to be necessary.  CAUTION: Think not to
 * replace this with RAND_MAX.  RAND_MAX defines the maximum value of
 * the older rand() function, which is often different from --- and
 * considerably inferior to --- random().
 */
#define MAX_RANDOM_VALUE  PG_INT32_MAX

/*
 * On PPC machines, decide whether to use the mutex hint bit in LWARX
 * instructions.  Setting the hint bit will slightly improve spinlock
 * performance on POWER6 and later machines, but does nothing before that,
 * and will result in illegal-instruction failures on some pre-POWER4
 * machines.  By default we use the hint bit when building for 64-bit PPC,
 * which should be safe in nearly all cases.  You might want to override
 * this if you are building 32-bit code for a known-recent PPC machine.
 */
#ifdef HAVE_PPC_LWARX_MUTEX_HINT	/* must have assembler support in any case */
#if defined(__ppc64__) || defined(__powerpc64__)
#define USE_PPC_LWARX_MUTEX_HINT
#endif
#endif

/*
 * On PPC machines, decide whether to use LWSYNC instructions in place of
 * ISYNC and SYNC.  This provides slightly better performance, but will
 * result in illegal-instruction failures on some pre-POWER4 machines.
 * By default we use LWSYNC when building for 64-bit PPC, which should be
 * safe in nearly all cases.
 */
#if defined(__ppc64__) || defined(__powerpc64__)
#define USE_PPC_LWSYNC
#endif

/*
 * Assumed cache line size. This doesn't affect correctness, but can be used
 * for low-level optimizations. Currently, this is used to pad some data
 * structures in xlog.c, to ensure that highly-contended fields are on
 * different cache lines. Too small a value can hurt performance due to false
 * sharing, while the only downside of too large a value is a few bytes of
 * wasted memory. The default is 128, which should be large enough for all
 * supported platforms.
 */
#define PG_CACHE_LINE_SIZE		128

/*
 *------------------------------------------------------------------------
 * The following symbols are for enabling debugging code, not for
 * controlling user-visible features or resource limits.
 *------------------------------------------------------------------------
 */

/*
 * Include Valgrind "client requests", mostly in the memory allocator, so
 * Valgrind understands PostgreSQL memory contexts.  This permits detecting
 * memory errors that Valgrind would not detect on a vanilla build.  See also
 * src/tools/valgrind.supp.  "make installcheck" runs 20-30x longer under
 * Valgrind.  Note that USE_VALGRIND slowed older versions of Valgrind by an
 * additional order of magnitude; Valgrind 3.8.1 does not have this problem.
 * The client requests fall in hot code paths, so USE_VALGRIND also slows
 * native execution by a few percentage points.
 *
 * You should normally use MEMORY_CONTEXT_CHECKING with USE_VALGRIND;
 * instrumentation of repalloc() is inferior without it.
 */
/* #define USE_VALGRIND */

/*
 * Define this to cause pfree()'d memory to be cleared immediately, to
 * facilitate catching bugs that refer to already-freed values.
 * Right now, this gets defined automatically if --enable-cassert.
 */
#ifdef USE_ASSERT_CHECKING
#define CLOBBER_FREED_MEMORY
#endif

/*
 * Define this to check memory allocation errors (scribbling on more
 * bytes than were allocated).  Right now, this gets defined
 * automatically if --enable-cassert or USE_VALGRIND.
 */
#if defined(USE_ASSERT_CHECKING) || defined(USE_VALGRIND)
#define MEMORY_CONTEXT_CHECKING
#endif

/*
 * Define this to cause palloc()'d memory to be filled with random data, to
 * facilitate catching code that depends on the contents of uninitialized
 * memory.  Caution: this is horrendously expensive.
 */
/* #define RANDOMIZE_ALLOCATED_MEMORY */

/*
 * Define this to force all parse and plan trees to be passed through
 * copyObject(), to facilitate catching errors and omissions in
 * copyObject().
 */
/* #define COPY_PARSE_PLAN_TREES */

/*
 * Define this to force all parse and plan trees to be passed through
 * outfuncs.c/readfuncs.c, to facilitate catching errors and omissions in
 * those modules.
 */
/* #define WRITE_READ_PARSE_PLAN_TREES */

/*
 * Define this to force all raw parse trees for DML statements to be scanned
 * by raw_expression_tree_walker(), to facilitate catching errors and
 * omissions in that function.
 */
/* #define RAW_EXPRESSION_COVERAGE_TEST */

/*
 * Enable debugging print statements for lock-related operations.
 */
/* #define LOCK_DEBUG */

/*
 * Enable debugging print statements for WAL-related operations; see
 * also the wal_debug GUC var.
 */
/* #define WAL_DEBUG */

/*
 * Enable tracing of resource consumption during sort operations;
 * see also the trace_sort GUC var.  For 8.1 this is enabled by default.
 */
#define TRACE_SORT 1

/*
 * Enable tracing of syncscan operations (see also the trace_syncscan GUC var).
 */
/* #define TRACE_SYNCSCAN */