golden hour

/usr/include/mysql/server/private

File/Folder	Size	Actions
aria_backup.h	1.51 KB
assume_aligned.h	2.29 KB
atomic	-
authors.h	9.9 KB
backup.h	1.21 KB
bounded_queue.h	6.67 KB
client_settings.h	1.89 KB
compat56.h	2.23 KB
config.h	14.18 KB
contributors.h	4.76 KB
create_options.h	4.42 KB
custom_conf.h	1.06 KB
datadict.h	1.53 KB
debug_sync.h	2 KB
derived_handler.h	2.32 KB
derror.h	980 B
des_key_file.h	1.21 KB
discover.h	1.53 KB
dur_prop.h	1.06 KB
embedded_priv.h	1.62 KB
event_data_objects.h	4.09 KB
event_db_repository.h	3.56 KB
event_parse_data.h	2.83 KB
event_queue.h	3.36 KB
event_scheduler.h	3.21 KB
events.h	4.59 KB
field.h	211.96 KB
field_comp.h	1.15 KB
filesort.h	6.67 KB
filesort_utils.h	8 KB
ft_global.h	3.04 KB
gcalc_slicescan.h	16.87 KB
gcalc_tools.h	11.62 KB
grant.h	2.69 KB
group_by_handler.h	3.45 KB
gstream.h	2.38 KB
ha_partition.h	62.22 KB
ha_sequence.h	5.94 KB
handle_connections_win.h	884 B
handler.h	188.39 KB
hash.h	4.34 KB
hash_filo.h	5.55 KB
heap.h	9.2 KB
hostname.h	5.29 KB
ilist.h	6.85 KB
init.h	852 B
innodb_priv.h	1.29 KB
item.h	263.12 KB
item_cmpfunc.h	128.01 KB
item_create.h	11.22 KB
item_func.h	124.59 KB
item_geofunc.h	34.69 KB
item_jsonfunc.h	19.8 KB
item_row.h	5.43 KB
item_strfunc.h	64.55 KB
item_subselect.h	56.19 KB
item_sum.h	69.2 KB
item_timefunc.h	57.85 KB
item_vers.h	3.79 KB
item_windowfunc.h	32.61 KB
item_xmlfunc.h	4.36 KB
key.h	2 KB
keycaches.h	1.95 KB
lex.h	28.9 KB
lex_ident.h	2.07 KB
lex_string.h	3.97 KB
lex_symbol.h	1.29 KB
lf.h	6.31 KB
lock.h	2.15 KB
log.h	44.46 KB
log_event.h	178.94 KB
log_event_data_type.h	1.85 KB
log_event_old.h	19.32 KB
log_slow.h	1.98 KB
maria.h	5.73 KB
mariadb.h	1.25 KB
mdl.h	36.78 KB
mem_root_array.h	6.94 KB
message.h	1.17 KB
multi_range_read.h	22.58 KB
my_alarm.h	2.37 KB
my_apc.h	4.62 KB
my_atomic.h	7.11 KB
my_atomic_wrapper.h	2.92 KB
my_base.h	26.5 KB
my_bit.h	6.05 KB
my_bitmap.h	5.22 KB
my_check_opt.h	2.56 KB
my_compare.h	10.93 KB
my_context.h	6.59 KB
my_counter.h	1.68 KB
my_cpu.h	4.85 KB
my_crypt.h	904 B
my_decimal.h	13.43 KB
my_default.h	1.84 KB
my_handler_errors.h	4.74 KB
my_json_writer.h	17.9 KB
my_libwrap.h	1.16 KB
my_md5.h	1.45 KB
my_minidump.h	848 B
my_nosys.h	1.4 KB
my_rdtsc.h	8.15 KB
my_rnd.h	1.04 KB
my_service_manager.h	1.47 KB
my_stack_alloc.h	6.2 KB
my_stacktrace.h	3.14 KB
my_time.h	10.22 KB
my_tree.h	3.9 KB
my_uctype.h	67.9 KB
my_user.h	1.1 KB
myisam.h	17.11 KB
myisamchk.h	4.61 KB
myisammrg.h	4.78 KB
myisampack.h	14.58 KB
mysql_async.h	1.77 KB
mysqld.h	38.7 KB
mysqld_default_groups.h	204 B
mysqld_suffix.h	1.17 KB
mysys_err.h	2.95 KB
nt_servc.h	2.94 KB
opt_range.h	57.58 KB
opt_subselect.h	14.21 KB
opt_trace.h	8.11 KB
opt_trace_context.h	3.21 KB
parse_file.h	4.11 KB
partition_element.h	5.09 KB
partition_info.h	18.85 KB
password.h	1.14 KB
pfs_file_provider.h	3.08 KB
pfs_idle_provider.h	1.35 KB
pfs_memory_provider.h	1.59 KB
pfs_metadata_provider.h	1.85 KB
pfs_socket_provider.h	2.21 KB
pfs_stage_provider.h	1.52 KB
pfs_statement_provider.h	4.25 KB
pfs_table_provider.h	2.56 KB
pfs_thread_provider.h	5.43 KB
pfs_transaction_provider.h	2.78 KB
privilege.h	27.9 KB
probes_mysql.h	973 B
probes_mysql_dtrace.h	32.23 KB
probes_mysql_nodtrace.h	4.89 KB
procedure.h	6.57 KB
protocol.h	12.32 KB
proxy_protocol.h	548 B
queues.h	3.46 KB
records.h	3.03 KB
repl_failsafe.h	1.55 KB
replication.h	15.73 KB
rijndael.h	1.67 KB
rowid_filter.h	15.13 KB
rpl_constants.h	3.28 KB
rpl_filter.h	4.43 KB
rpl_gtid.h	13.31 KB
rpl_injector.h	9.43 KB
rpl_mi.h	13.65 KB
rpl_parallel.h	13.57 KB
rpl_record.h	1.55 KB
rpl_record_old.h	1.37 KB
rpl_reporting.h	2.96 KB
rpl_rli.h	31.8 KB
rpl_tblmap.h	3.1 KB
rpl_utility.h	9.4 KB
scheduler.h	2.99 KB
scope.h	1.76 KB
select_handler.h	2.18 KB
semisync.h	2.23 KB
semisync_master.h	22.7 KB
semisync_master_ack_receiver.h	5.73 KB
semisync_slave.h	3.47 KB
service_versions.h	2 KB
session_tracker.h	13.96 KB
set_var.h	16.1 KB
slave.h	11.99 KB
source_revision.h	67 B
sp.h	22.02 KB
sp_cache.h	2 KB
sp_head.h	63.05 KB
sp_pcontext.h	24.31 KB
sp_rcontext.h	14 KB
span.h	3.84 KB
spatial.h	21.82 KB
sql_acl.h	13.8 KB
sql_admin.h	2.78 KB
sql_alloc.h	1.83 KB
sql_alter.h	11.86 KB
sql_analyse.h	11.23 KB
sql_analyze_stmt.h	11.48 KB
sql_array.h	6.79 KB
sql_audit.h	13.62 KB
sql_base.h	24.83 KB
sql_basic_types.h	9.28 KB
sql_binlog.h	895 B
sql_bitmap.h	7.66 KB
sql_bootstrap.h	1.63 KB
sql_cache.h	21.15 KB
sql_callback.h	1.51 KB
sql_class.h	250.08 KB
sql_cmd.h	9.13 KB
sql_connect.h	3.99 KB
sql_const.h	10.94 KB
sql_crypt.h	1.4 KB
sql_cte.h	16.15 KB
sql_cursor.h	2.26 KB
sql_db.h	2.16 KB
sql_debug.h	4.65 KB
sql_delete.h	1.31 KB
sql_derived.h	1.26 KB
sql_digest.h	3.73 KB
sql_digest_stream.h	1.53 KB
sql_do.h	954 B
sql_error.h	38.12 KB
sql_explain.h	27.1 KB
sql_expression_cache.h	4.26 KB
sql_get_diagnostics.h	7.68 KB
sql_handler.h	2.84 KB
sql_help.h	920 B
sql_hset.h	3.56 KB
sql_i_s.h	7.97 KB
sql_insert.h	2.39 KB
sql_join_cache.h	47.44 KB
sql_lex.h	166.31 KB
sql_lifo_buffer.h	9.45 KB
sql_limit.h	2.38 KB
sql_list.h	21.56 KB
sql_load.h	1.25 KB
sql_locale.h	2.64 KB
sql_manager.h	960 B
sql_mode.h	6.58 KB
sql_parse.h	8.26 KB
sql_partition.h	11.75 KB
sql_partition_admin.h	5.8 KB
sql_plist.h	7.55 KB
sql_plugin.h	7.39 KB
sql_plugin_compat.h	2.18 KB
sql_prepare.h	11.14 KB
sql_priv.h	17.67 KB
sql_profile.h	7.63 KB
sql_reload.h	1.01 KB
sql_rename.h	982 B
sql_repl.h	2.96 KB
sql_schema.h	3.23 KB
sql_select.h	86.56 KB
sql_sequence.h	5.06 KB
sql_servers.h	1.74 KB
sql_show.h	9.39 KB
sql_signal.h	3.28 KB
sql_sort.h	21.39 KB
sql_statistics.h	11.96 KB
sql_string.h	36.43 KB
sql_table.h	11.07 KB
sql_tablespace.h	956 B
sql_test.h	1.55 KB
sql_time.h	8.18 KB
sql_trigger.h	10.76 KB
sql_truncate.h	2.03 KB
sql_tvc.h	2.36 KB
sql_type.h	286 KB
sql_type_geom.h	18.53 KB
sql_type_int.h	9.73 KB
sql_type_json.h	6 KB
sql_type_real.h	1.23 KB
sql_type_string.h	1.59 KB
sql_udf.h	4.74 KB
sql_union.h	1.04 KB
sql_update.h	1.88 KB
sql_view.h	2.33 KB
sql_window.h	6.65 KB
ssl_compat.h	3.07 KB
strfunc.h	2.22 KB
structs.h	25.13 KB
sys_vars_shared.h	2.67 KB
t_ctype.h	5.51 KB
table.h	112.29 KB
table_cache.h	4.13 KB
thr_alarm.h	2.87 KB
thr_lock.h	6.7 KB
thr_malloc.h	1.17 KB
thr_timer.h	1.53 KB
thread_cache.h	5.77 KB
thread_pool_priv.h	4 KB
threadpool.h	4.51 KB
threadpool_generic.h	3.83 KB
transaction.h	1.43 KB
tzfile.h	4.9 KB
tztime.h	3.32 KB
uniques.h	4.1 KB
unireg.h	7.43 KB
vers_string.h	2.47 KB
violite.h	9.71 KB
waiting_threads.h	4.43 KB
welcome_copyright_notice.h	1.19 KB
win_tzname_data.h	6.35 KB
winservice.h	1.17 KB
wqueue.h	1.53 KB
wsrep.h	3.23 KB
wsrep_applier.h	2.64 KB
wsrep_binlog.h	3.36 KB
wsrep_client_service.h	2.5 KB
wsrep_client_state.h	1.53 KB
wsrep_condition_variable.h	1.45 KB
wsrep_high_priority_service.h	4.8 KB
wsrep_mutex.h	1.19 KB
wsrep_mysqld.h	19.88 KB
wsrep_mysqld_c.h	1.2 KB
wsrep_on.h	1.68 KB
wsrep_priv.h	1.6 KB
wsrep_schema.h	4.54 KB
wsrep_server_service.h	3.55 KB
wsrep_server_state.h	2.23 KB
wsrep_sst.h	3.86 KB
wsrep_storage_service.h	1.77 KB
wsrep_thd.h	10.58 KB
wsrep_trans_observer.h	17.81 KB
wsrep_types.h	997 B
wsrep_utils.h	9.07 KB
wsrep_var.h	4.17 KB
wsrep_xid.h	1.42 KB
xa.h	1.69 KB

Edit: my_bit.h

This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; version 2 of the License.

This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */

#ifndef MY_BIT_INCLUDED
#define MY_BIT_INCLUDED

/*
  Some useful bit functions
*/

C_MODE_START

extern const uchar _my_bits_reverse_table[256];

/*
  my_bit_log2_xxx()

In the given value, find the highest bit set,
  which is the smallest X that satisfies the condition: (2^X >= value).
  Can be used as a reverse operation for (1<<X), to find X.

Examples:
  - returns 0 for (1<<0)
  - returns 1 for (1<<1)
  - returns 2 for (1<<2)
  - returns 2 for 3, which has (1<<2) as the highest bit set.

Note, the behaviour of log2(0) is not defined.
  Let's return 0 for the input 0, for the code simplicity.
  See the 000x branch. It covers both (1<<0) and 0.
*/
static inline CONSTEXPR uint my_bit_log2_hex_digit(uint8 value)
{
  return value & 0x0C ? /*1100*/ (value & 0x08 ? /*1000*/ 3 : /*0100*/ 2) :
                        /*0010*/ (value & 0x02 ? /*0010*/ 1 : /*000x*/ 0);
}
static inline CONSTEXPR uint my_bit_log2_uint8(uint8 value)
{
  return value & 0xF0 ? my_bit_log2_hex_digit((uint8) (value >> 4)) + 4:
                        my_bit_log2_hex_digit(value);
}
static inline CONSTEXPR uint my_bit_log2_uint16(uint16 value)
{
  return value & 0xFF00 ? my_bit_log2_uint8((uint8) (value >> 8)) + 8 :
                          my_bit_log2_uint8((uint8) value);
}
static inline CONSTEXPR uint my_bit_log2_uint32(uint32 value)
{
  return value & 0xFFFF0000UL ?
         my_bit_log2_uint16((uint16) (value >> 16)) + 16 :
         my_bit_log2_uint16((uint16) value);
}
static inline CONSTEXPR uint my_bit_log2_uint64(ulonglong value)
{
  return value & 0xFFFFFFFF00000000ULL ?
         my_bit_log2_uint32((uint32) (value >> 32)) + 32 :
         my_bit_log2_uint32((uint32) value);
}
static inline CONSTEXPR uint my_bit_log2_size_t(size_t value)
{
#ifdef __cplusplus
  static_assert(sizeof(size_t) <= sizeof(ulonglong),
                "size_t <= ulonglong is an assumption that needs to be fixed "
                "for this architecture. Please create an issue on "
                "https://jira.mariadb.org");
#endif
  return my_bit_log2_uint64((ulonglong) value);
}

/*
Count bits in 32bit integer

Algorithm by Sean Anderson, according to:
  http://graphics.stanford.edu/~seander/bithacks.html
  under "Counting bits set, in parallel"

(Original code public domain).
*/
static inline uint my_count_bits_uint32(uint32 v)
{
  v = v - ((v >> 1) & 0x55555555);
  v = (v & 0x33333333) + ((v >> 2) & 0x33333333);
  return (((v + (v >> 4)) & 0xF0F0F0F) * 0x1010101) >> 24;
}

static inline uint my_count_bits(ulonglong x)
{
  return my_count_bits_uint32((uint32)x) + my_count_bits_uint32((uint32)(x >> 32));
}

/*
  Next highest power of two

SYNOPSIS
    my_round_up_to_next_power()
    v		Value to check

RETURN
    Next or equal power of 2
    Note: 0 will return 0

NOTES
    Algorithm by Sean Anderson, according to:
    http://graphics.stanford.edu/~seander/bithacks.html
    (Original code public domain)

Comments shows how this works with 01100000000000000000000000001011
*/

static inline uint32 my_round_up_to_next_power(uint32 v)
{
  v--;			/* 01100000000000000000000000001010 */
  v|= v >> 1;		/* 01110000000000000000000000001111 */
  v|= v >> 2;		/* 01111100000000000000000000001111 */
  v|= v >> 4;		/* 01111111110000000000000000001111 */
  v|= v >> 8;		/* 01111111111111111100000000001111 */
  v|= v >> 16;		/* 01111111111111111111111111111111 */
  return v+1;		/* 10000000000000000000000000000000 */
}

static inline uint32 my_clear_highest_bit(uint32 v)
{
  uint32 w=v >> 1;
  w|= w >> 1;
  w|= w >> 2;
  w|= w >> 4;
  w|= w >> 8;
  w|= w >> 16;
  return v & w;
}

static inline uint32 my_reverse_bits(uint32 key)
{
  return
    ((uint32)_my_bits_reverse_table[ key      & 255] << 24) |
    ((uint32)_my_bits_reverse_table[(key>> 8) & 255] << 16) |
    ((uint32)_my_bits_reverse_table[(key>>16) & 255] <<  8) |
     (uint32)_my_bits_reverse_table[(key>>24)      ];
}

/*
  a number with the n lowest bits set
  an overflow-safe version of  (1 << n) - 1
*/
static inline uint64 my_set_bits(int n)
{
  return (((1ULL << (n - 1)) - 1) << 1) | 1;
}

/* Create a mask of the significant bits for the last byte (1,3,7,..255) */
static inline uchar last_byte_mask(uint bits)
{
  /* Get the number of used bits-1 (0..7) in the last byte */
  unsigned int const used = (bits - 1U) & 7U;
  /* Return bitmask for the significant bits */
  return (uchar) ((2U << used) - 1);
}

static inline uint my_bits_in_bytes(uint n)
{
  return ((n + 7) / 8);
}

#ifdef _MSC_VER
#include <intrin.h>
#endif

/*
  Find the position of the first(least significant) bit set in
  the argument. Returns 64 if the argument was 0.
*/
static inline uint my_find_first_bit(ulonglong n)
{
  if(!n)
    return 64;
#if defined(__GNUC__)
  return __builtin_ctzll(n);
#elif defined(_MSC_VER)
#if defined(_M_IX86)
  unsigned long bit;
  if( _BitScanForward(&bit, (uint)n))
    return bit;
  _BitScanForward(&bit, (uint)(n>>32));
  return bit + 32;
#else
  unsigned long bit;
  _BitScanForward64(&bit, n);
  return bit;
#endif
#else
  /* Generic case */
  uint  shift= 0;
  static const uchar last_bit[16] = { 32, 0, 1, 0,
                                      2, 0, 1, 0,
                                      3, 0, 1, 0,
                                      2, 0, 1, 0};
  uint bit;
  while ((bit = last_bit[(n >> shift) & 0xF]) == 32)
    shift+= 4;
  return shift+bit;
#endif
}
C_MODE_END

#endif /* MY_BIT_INCLUDED */