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Ondřej Surý f3635bcc14 Use #pragma once as header guards 
Unify the header guard style and replace the inconsistent include guards
with #pragma once.

The #pragma once is widely and very well supported in all compilers that
BIND 9 supports, and #pragma once was already in use in several new or
refactored headers.

Using simpler method will also allow us to automate header guard checks
as this is simpler to programatically check.

For reference, here are the reasons for the change taken from
Wikipedia[1]:

> In the C and C++ programming languages, #pragma once is a non-standard
> but widely supported preprocessor directive designed to cause the
> current source file to be included only once in a single compilation.
>
> Thus, #pragma once serves the same purpose as include guards, but with
> several advantages, including: less code, avoidance of name clashes,
> and sometimes improvement in compilation speed. On the other hand,
> #pragma once is not necessarily available in all compilers and its
> implementation is tricky and might not always be reliable.

1. https://en.wikipedia.org/wiki/Pragma_once
2021-10-13 00:49:15 -07:00
..
include Use #pragma once as header guards 2021-10-13 00:49:15 -07:00
netmgr DoT: do not attempt to call read callback if it is not avaialble 2021-10-05 11:26:14 +03:00
tests Use #pragma once as header guards 2021-10-13 00:49:15 -07:00
.gitignore [master] update gitignore files; use rev-parse to get srcid 2014-06-17 13:49:30 -07:00
aes.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
app.c Remove support for external applications to register libisc 2021-08-30 08:47:39 +02:00
assertions.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
astack.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
backtrace.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
base32.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
base64.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
bind9.c Remove support for external applications to register libisc 2021-08-30 08:47:39 +02:00
buffer.c Use isc_mem_reget() when growing buffer dynamically 2021-09-23 22:17:15 +02:00
commandline.c Remove LIB<*>_EXTERNAL_DATA defines 2021-07-06 05:33:48 +00:00
condition.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
counter.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
crc64.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
dir.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
entropy.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
entropy_private.h update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
errno.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
errno2result.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
errno2result.h Use #pragma once as header guards 2021-10-13 00:49:15 -07:00
error.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
event.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
file.c Remove the mastefile-format map option 2021-09-17 07:09:50 +02:00
fsaccess.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
fsaccess_common.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
fsaccess_common_p.h update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
glob.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
hash.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
heap.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
hex.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
hmac.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
hp.c Add new isc_managers API to simplify <*>mgr create/destroy 2021-05-07 10:19:05 -07:00
ht.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
httpd.c Refactor the interface handling in the netmgr 2021-05-26 09:43:12 +02:00
interfaceiter.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
iterated_hash.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
jemalloc_shim.h Use assertions to check for failed allocations 2021-09-30 13:54:55 +02:00
lex.c Add support for parsing <tag>[=<value>] 2021-08-18 13:49:48 +10:00
lib.c Remove support for external applications to register libisc 2021-08-30 08:47:39 +02:00
log.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
Makefile.am Properly handle JEMALLOC_* Autoconf variables 2021-10-12 10:44:30 +02:00
managers.c Convert dispatch to netmgr 2021-10-02 11:39:56 -07:00
md.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
mem.c Use assertions to check for failed allocations 2021-09-30 13:54:55 +02:00
mem_p.h Use library constructor/destructor to initialize OpenSSL 2021-02-18 19:33:54 +01:00
meminfo.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
mutex.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
mutexblock.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
net.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
netaddr.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
netmgr_p.h Destroy netmgr before destroying taskmgr 2021-05-07 14:28:30 -07:00
netscope.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
nonce.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
openssl_shim.c Refactor TLSDNS module to work with libuv/ssl directly 2021-01-25 09:19:22 +01:00
openssl_shim.h Refactor TLSDNS module to work with libuv/ssl directly 2021-01-25 09:19:22 +01:00
os.c Cache the isc_os_ncpu() result 2021-07-13 09:12:04 +02:00
parseint.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
pool.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
portset.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
queue.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
quota.c Add (http-)listener-clients option (DoH quota mechanism) 2021-07-16 11:50:20 +03:00
radix.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
random.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
ratelimiter.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
regex.c Reformat sources using clang-format-11 2020-12-08 18:36:23 +01:00
region.c Reformat sources using clang-format-11 2020-12-08 18:36:23 +01:00
resource.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
result.c Replace "master/slave" terms in code 2021-10-12 13:11:13 -07:00
rwlock.c Fix unchecked return of isc_rwlock_lock and isc_rwlock_unlock 2021-07-12 13:26:29 +10:00
safe.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
serial.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
siphash.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
sockaddr.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
socket.c Convert dispatch to netmgr 2021-10-02 11:39:56 -07:00
socket_p.h Use #pragma once as header guards 2021-10-13 00:49:15 -07:00
stats.c Add a function isc_stats_resize 2021-08-24 09:07:15 +02:00
stdio.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
stdtime.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
string.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
symtab.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00
syslog.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
task.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
task_p.h Destroy netmgr before destroying taskmgr 2021-05-07 14:28:30 -07:00
taskpool.c Refactor taskmgr to run on top of netmgr 2021-04-20 23:22:28 +02:00
thread.c Completely remove BIND 9 Windows support 2021-06-09 14:35:14 +02:00
time.c Rewrite dns_resolver and dns_request to use netmgr timeouts 2021-10-02 11:39:56 -07:00
timer.c The isc/platform.h header has been completely removed 2021-07-06 05:33:48 +00:00
timer_p.h Add new isc_managers API to simplify <*>mgr create/destroy 2021-05-07 10:19:05 -07:00
tls.c Low level code to support ALPN in DoT 2021-10-05 11:23:47 +03:00
tls_p.h Use library constructor/destructor to initialize OpenSSL 2021-02-18 19:33:54 +01:00
tm.c Use isdigit instead of checking character range 2021-05-05 19:15:33 +02:00
trampoline.c Synchronize the isc_trampoline API with changes needed in v9_16 2021-09-01 10:44:21 +02:00
trampoline_p.h Synchronize the isc_trampoline API with changes needed in v9_16 2021-09-01 10:44:21 +02:00
url.c cast (char) to (unsigned char) when calling is*() 2021-03-15 14:18:03 +11:00
utf8.c update all copyright headers to eliminate the typo 2020-09-14 16:20:40 -07:00