summaryrefslogtreecommitdiff
path: root/mysys/my_static.c
blob: ec8d66ab0cfd6e566e066f009c803b7ba93ce173 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/* Copyright (C) 2000-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.

   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

/*
  Static variables for mysys library. All definied here for easy making of
  a shared library
*/

#include "mysys_priv.h"
#include "my_static.h"
#include "my_alarm.h"

my_bool timed_mutexes= 0;

	/* from my_init */
char *	home_dir=0;
const char      *my_progname=0;
char		curr_dir[FN_REFLEN]= {0},
		home_dir_buff[FN_REFLEN]= {0};
ulong		my_stream_opened=0,my_file_opened=0, my_tmp_file_created=0;
ulong           my_file_total_opened= 0;
int		my_umask=0664, my_umask_dir=0777;

struct st_my_file_info my_file_info_default[MY_NFILE];
uint   my_file_limit= MY_NFILE;
struct st_my_file_info *my_file_info= my_file_info_default;

	/* From mf_brkhant */
int			my_dont_interrupt=0;
volatile int		_my_signals=0;
struct st_remember _my_sig_remember[MAX_SIGNALS]={{0,0}};

	/* from mf_reccache.c */
ulong my_default_record_cache_size=RECORD_CACHE_SIZE;

	/* from soundex.c */
				/* ABCDEFGHIJKLMNOPQRSTUVWXYZ */
				/* :::::::::::::::::::::::::: */
const char *soundex_map=	  "01230120022455012623010202";

	/* from my_malloc */
USED_MEM* my_once_root_block=0;			/* pointer to first block */
uint	  my_once_extra=ONCE_ALLOC_INIT;	/* Memory to alloc / block */

	/* from my_largepage.c */
#ifdef HAVE_LARGE_PAGES
my_bool my_use_large_pages= 0;
uint    my_large_page_size= 0;
#endif

	/* from my_alarm */
int volatile my_have_got_alarm=0;	/* declare variable to reset */
ulong my_time_to_wait_for_lock=2;	/* In seconds */

	/* from errors.c */
#ifdef SHARED_LIBRARY
const char *globerrs[GLOBERRS];		/* my_error_messages is here */
#endif
void (*my_abort_hook)(int) = (void(*)(int)) exit;
void (*error_handler_hook)(uint error, const char *str, myf MyFlags)=
  my_message_stderr;
void (*fatal_error_handler_hook)(uint error, const char *str, myf MyFlags)=
  my_message_stderr;

static const char *proc_info_dummy(void *a __attribute__((unused)),
                                   const char *b __attribute__((unused)),
                                   const char *c __attribute__((unused)),
                                   const char *d __attribute__((unused)),
                                   const unsigned int e __attribute__((unused)))
{
  return 0;
}

/* this is to be able to call set_thd_proc_info from the C code */
const char *(*proc_info_hook)(void *, const char *, const char *, const char *,
                              const unsigned int)= proc_info_dummy;

#if defined(ENABLED_DEBUG_SYNC)
/**
  Global pointer to be set if callback function is defined
  (e.g. in mysqld). See sql/debug_sync.cc.
*/
void (*debug_sync_C_callback_ptr)(const char *, size_t);
#endif /* defined(ENABLED_DEBUG_SYNC) */

#ifdef __WIN__
/* from my_getsystime.c */
ulonglong query_performance_frequency, query_performance_offset;
#endif

	/* How to disable options */
my_bool my_disable_locking=0;
my_bool my_disable_async_io=0;
my_bool my_disable_flush_key_blocks=0;
my_bool my_disable_symlinks=0;

/*
  Note that PSI_hook and PSI_server are unconditionally
  (no ifdef HAVE_PSI_INTERFACE) defined.
  This is to ensure binary compatibility between the server and plugins,
  in the case when:
  - the server is not compiled with HAVE_PSI_INTERFACE
  - a plugin is compiled with HAVE_PSI_INTERFACE
  See the doxygen documentation for the performance schema.
*/

/**
  Hook for the instrumentation interface.
  Code implementing the instrumentation interface should register here.
*/
struct PSI_bootstrap *PSI_hook= NULL;

/**
  Instance of the instrumentation interface for the MySQL server.
  @todo This is currently a global variable, which is handy when
  compiling instrumented code that is bundled with the server.
  When dynamic plugin are truly supported, this variable will need
  to be replaced by a macro, so that each XYZ plugin can have it's own
  xyz_psi_server variable, obtained from PSI_bootstrap::get_interface()
  with the version used at compile time for plugin XYZ.
*/
PSI *PSI_server= NULL;