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guc.h
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1 /*--------------------------------------------------------------------
2  * guc.h
3  *
4  * External declarations pertaining to backend/utils/misc/guc.c and
5  * backend/utils/misc/guc-file.l
6  *
7  * Copyright (c) 2000-2017, PostgreSQL Global Development Group
8  * Written by Peter Eisentraut <peter_e@gmx.net>.
9  *
10  * src/include/utils/guc.h
11  *--------------------------------------------------------------------
12  */
13 #ifndef GUC_H
14 #define GUC_H
15 
16 #include "nodes/parsenodes.h"
17 #include "tcop/dest.h"
18 #include "utils/array.h"
19 
20 
21 /* upper limit for GUC variables measured in kilobytes of memory */
22 /* note that various places assume the byte size fits in a "long" variable */
23 #if SIZEOF_SIZE_T > 4 && SIZEOF_LONG > 4
24 #define MAX_KILOBYTES INT_MAX
25 #else
26 #define MAX_KILOBYTES (INT_MAX / 1024)
27 #endif
28 
29 /*
30  * Automatic configuration file name for ALTER SYSTEM.
31  * This file will be used to store values of configuration parameters
32  * set by ALTER SYSTEM command.
33  */
34 #define PG_AUTOCONF_FILENAME "postgresql.auto.conf"
35 
36 /*
37  * Certain options can only be set at certain times. The rules are
38  * like this:
39  *
40  * INTERNAL options cannot be set by the user at all, but only through
41  * internal processes ("server_version" is an example). These are GUC
42  * variables only so they can be shown by SHOW, etc.
43  *
44  * POSTMASTER options can only be set when the postmaster starts,
45  * either from the configuration file or the command line.
46  *
47  * SIGHUP options can only be set at postmaster startup or by changing
48  * the configuration file and sending the HUP signal to the postmaster
49  * or a backend process. (Notice that the signal receipt will not be
50  * evaluated immediately. The postmaster and the backend check it at a
51  * certain point in their main loop. It's safer to wait than to read a
52  * file asynchronously.)
53  *
54  * BACKEND and SU_BACKEND options can only be set at postmaster startup,
55  * from the configuration file, or by client request in the connection
56  * startup packet (e.g., from libpq's PGOPTIONS variable). SU_BACKEND
57  * options can be set from the startup packet only when the user is a
58  * superuser. Furthermore, an already-started backend will ignore changes
59  * to such an option in the configuration file. The idea is that these
60  * options are fixed for a given backend once it's started, but they can
61  * vary across backends.
62  *
63  * SUSET options can be set at postmaster startup, with the SIGHUP
64  * mechanism, or from the startup packet or SQL if you're a superuser.
65  *
66  * USERSET options can be set by anyone any time.
67  */
68 typedef enum
69 {
77 } GucContext;
78 
79 /*
80  * The following type records the source of the current setting. A
81  * new setting can only take effect if the previous setting had the
82  * same or lower level. (E.g, changing the config file doesn't
83  * override the postmaster command line.) Tracking the source allows us
84  * to process sources in any convenient order without affecting results.
85  * Sources <= PGC_S_OVERRIDE will set the default used by RESET, as well
86  * as the current value. Note that source == PGC_S_OVERRIDE should be
87  * used when setting a PGC_INTERNAL option.
88  *
89  * PGC_S_INTERACTIVE isn't actually a source value, but is the
90  * dividing line between "interactive" and "non-interactive" sources for
91  * error reporting purposes.
92  *
93  * PGC_S_TEST is used when testing values to be used later ("doit" will always
94  * be false, so this never gets stored as the actual source of any value).
95  * For example, ALTER DATABASE/ROLE tests proposed per-database or per-user
96  * defaults this way, and CREATE FUNCTION tests proposed function SET clauses
97  * this way. This is an interactive case, but it needs its own source value
98  * because some assign hooks need to make different validity checks in this
99  * case. In particular, references to nonexistent database objects generally
100  * shouldn't throw hard errors in this case, at most NOTICEs, since the
101  * objects might exist by the time the setting is used for real.
102  *
103  * NB: see GucSource_Names in guc.c if you change this.
104  */
105 typedef enum
106 {
107  PGC_S_DEFAULT, /* hard-wired default ("boot_val") */
108  PGC_S_DYNAMIC_DEFAULT, /* default computed during initialization */
109  PGC_S_ENV_VAR, /* postmaster environment variable */
110  PGC_S_FILE, /* postgresql.conf */
111  PGC_S_ARGV, /* postmaster command line */
112  PGC_S_GLOBAL, /* global in-database setting */
113  PGC_S_DATABASE, /* per-database setting */
114  PGC_S_USER, /* per-user setting */
115  PGC_S_DATABASE_USER, /* per-user-and-database setting */
116  PGC_S_CLIENT, /* from client connection request */
117  PGC_S_OVERRIDE, /* special case to forcibly set default */
118  PGC_S_INTERACTIVE, /* dividing line for error reporting */
119  PGC_S_TEST, /* test per-database or per-user setting */
120  PGC_S_SESSION /* SET command */
121 } GucSource;
122 
123 /*
124  * Parsing the configuration file(s) will return a list of name-value pairs
125  * with source location info. We also abuse this data structure to carry
126  * error reports about the config files. An entry reporting an error will
127  * have errmsg != NULL, and might have NULLs for name, value, and/or filename.
128  *
129  * If "ignore" is true, don't attempt to apply the item (it might be an error
130  * report, or an item we determined to be duplicate). "applied" is set true
131  * if we successfully applied, or could have applied, the setting.
132  */
133 typedef struct ConfigVariable
134 {
135  char *name;
136  char *value;
137  char *errmsg;
138  char *filename;
140  bool ignore;
141  bool applied;
144 
145 extern bool ParseConfigFile(const char *config_file, bool strict,
146  const char *calling_file, int calling_lineno,
147  int depth, int elevel,
148  ConfigVariable **head_p, ConfigVariable **tail_p);
149 extern bool ParseConfigFp(FILE *fp, const char *config_file,
150  int depth, int elevel,
151  ConfigVariable **head_p, ConfigVariable **tail_p);
152 extern bool ParseConfigDirectory(const char *includedir,
153  const char *calling_file, int calling_lineno,
154  int depth, int elevel,
155  ConfigVariable **head_p,
156  ConfigVariable **tail_p);
158 
159 /*
160  * The possible values of an enum variable are specified by an array of
161  * name-value pairs. The "hidden" flag means the value is accepted but
162  * won't be displayed when guc.c is asked for a list of acceptable values.
163  */
165 {
166  const char *name;
167  int val;
168  bool hidden;
169 };
170 
171 /*
172  * Signatures for per-variable check/assign/show hook functions
173  */
174 typedef bool (*GucBoolCheckHook) (bool *newval, void **extra, GucSource source);
175 typedef bool (*GucIntCheckHook) (int *newval, void **extra, GucSource source);
176 typedef bool (*GucRealCheckHook) (double *newval, void **extra, GucSource source);
177 typedef bool (*GucStringCheckHook) (char **newval, void **extra, GucSource source);
178 typedef bool (*GucEnumCheckHook) (int *newval, void **extra, GucSource source);
179 
180 typedef void (*GucBoolAssignHook) (bool newval, void *extra);
181 typedef void (*GucIntAssignHook) (int newval, void *extra);
182 typedef void (*GucRealAssignHook) (double newval, void *extra);
183 typedef void (*GucStringAssignHook) (const char *newval, void *extra);
184 typedef void (*GucEnumAssignHook) (int newval, void *extra);
185 
186 typedef const char *(*GucShowHook) (void);
187 
188 /*
189  * Miscellaneous
190  */
191 typedef enum
192 {
193  /* Types of set_config_option actions */
194  GUC_ACTION_SET, /* regular SET command */
195  GUC_ACTION_LOCAL, /* SET LOCAL command */
196  GUC_ACTION_SAVE /* function SET option, or temp assignment */
197 } GucAction;
198 
199 #define GUC_QUALIFIER_SEPARATOR '.'
200 
201 /*
202  * bit values in "flags" of a GUC variable
203  */
204 #define GUC_LIST_INPUT 0x0001 /* input can be list format */
205 #define GUC_LIST_QUOTE 0x0002 /* double-quote list elements */
206 #define GUC_NO_SHOW_ALL 0x0004 /* exclude from SHOW ALL */
207 #define GUC_NO_RESET_ALL 0x0008 /* exclude from RESET ALL */
208 #define GUC_REPORT 0x0010 /* auto-report changes to client */
209 #define GUC_NOT_IN_SAMPLE 0x0020 /* not in postgresql.conf.sample */
210 #define GUC_DISALLOW_IN_FILE 0x0040 /* can't set in postgresql.conf */
211 #define GUC_CUSTOM_PLACEHOLDER 0x0080 /* placeholder for custom variable */
212 #define GUC_SUPERUSER_ONLY 0x0100 /* show only to superusers */
213 #define GUC_IS_NAME 0x0200 /* limit string to NAMEDATALEN-1 */
214 #define GUC_NOT_WHILE_SEC_REST 0x0400 /* can't set if security restricted */
215 #define GUC_DISALLOW_IN_AUTO_FILE 0x0800 /* can't set in
216  * PG_AUTOCONF_FILENAME */
217 
218 #define GUC_UNIT_KB 0x1000 /* value is in kilobytes */
219 #define GUC_UNIT_BLOCKS 0x2000 /* value is in blocks */
220 #define GUC_UNIT_XBLOCKS 0x3000 /* value is in xlog blocks */
221 #define GUC_UNIT_MB 0x4000 /* value is in megabytes */
222 #define GUC_UNIT_MEMORY 0xF000 /* mask for size-related units */
223 
224 #define GUC_UNIT_MS 0x10000 /* value is in milliseconds */
225 #define GUC_UNIT_S 0x20000 /* value is in seconds */
226 #define GUC_UNIT_MIN 0x30000 /* value is in minutes */
227 #define GUC_UNIT_TIME 0xF0000 /* mask for time-related units */
228 
229 #define GUC_UNIT (GUC_UNIT_MEMORY | GUC_UNIT_TIME)
230 
231 
232 /* GUC vars that are actually declared in guc.c, rather than elsewhere */
233 extern bool log_duration;
234 extern bool Debug_print_plan;
235 extern bool Debug_print_parse;
236 extern bool Debug_print_rewritten;
237 extern bool Debug_pretty_print;
238 
239 extern bool log_parser_stats;
240 extern bool log_planner_stats;
241 extern bool log_executor_stats;
242 extern bool log_statement_stats;
243 extern bool log_btree_build_stats;
244 
246 extern bool default_with_oids;
247 
248 extern int log_min_error_statement;
249 extern int log_min_messages;
250 extern int client_min_messages;
251 extern int log_min_duration_statement;
252 extern int log_temp_files;
253 
254 extern int temp_file_limit;
255 
256 extern int num_temp_buffers;
257 
258 extern char *cluster_name;
259 extern char *ConfigFileName;
260 extern char *HbaFileName;
261 extern char *IdentFileName;
262 extern char *external_pid_file;
263 
264 extern char *application_name;
265 
266 extern int tcp_keepalives_idle;
267 extern int tcp_keepalives_interval;
268 extern int tcp_keepalives_count;
269 
270 #ifdef TRACE_SORT
271 extern bool trace_sort;
272 #endif
273 
274 /*
275  * Functions exported by guc.c
276  */
277 extern void SetConfigOption(const char *name, const char *value,
278  GucContext context, GucSource source);
279 
280 extern void DefineCustomBoolVariable(
281  const char *name,
282  const char *short_desc,
283  const char *long_desc,
284  bool *valueAddr,
285  bool bootValue,
286  GucContext context,
287  int flags,
288  GucBoolCheckHook check_hook,
289  GucBoolAssignHook assign_hook,
290  GucShowHook show_hook);
291 
292 extern void DefineCustomIntVariable(
293  const char *name,
294  const char *short_desc,
295  const char *long_desc,
296  int *valueAddr,
297  int bootValue,
298  int minValue,
299  int maxValue,
300  GucContext context,
301  int flags,
302  GucIntCheckHook check_hook,
303  GucIntAssignHook assign_hook,
304  GucShowHook show_hook);
305 
306 extern void DefineCustomRealVariable(
307  const char *name,
308  const char *short_desc,
309  const char *long_desc,
310  double *valueAddr,
311  double bootValue,
312  double minValue,
313  double maxValue,
314  GucContext context,
315  int flags,
316  GucRealCheckHook check_hook,
317  GucRealAssignHook assign_hook,
318  GucShowHook show_hook);
319 
320 extern void DefineCustomStringVariable(
321  const char *name,
322  const char *short_desc,
323  const char *long_desc,
324  char **valueAddr,
325  const char *bootValue,
326  GucContext context,
327  int flags,
328  GucStringCheckHook check_hook,
329  GucStringAssignHook assign_hook,
330  GucShowHook show_hook);
331 
332 extern void DefineCustomEnumVariable(
333  const char *name,
334  const char *short_desc,
335  const char *long_desc,
336  int *valueAddr,
337  int bootValue,
338  const struct config_enum_entry *options,
339  GucContext context,
340  int flags,
341  GucEnumCheckHook check_hook,
342  GucEnumAssignHook assign_hook,
343  GucShowHook show_hook);
344 
345 extern void EmitWarningsOnPlaceholders(const char *className);
346 
347 extern const char *GetConfigOption(const char *name, bool missing_ok,
348  bool restrict_superuser);
349 extern const char *GetConfigOptionResetString(const char *name);
350 extern void ProcessConfigFile(GucContext context);
351 extern void InitializeGUCOptions(void);
352 extern bool SelectConfigFiles(const char *userDoption, const char *progname);
353 extern void ResetAllOptions(void);
354 extern void AtStart_GUC(void);
355 extern int NewGUCNestLevel(void);
356 extern void AtEOXact_GUC(bool isCommit, int nestLevel);
357 extern void BeginReportingGUCOptions(void);
358 extern void ParseLongOption(const char *string, char **name, char **value);
359 extern bool parse_int(const char *value, int *result, int flags,
360  const char **hintmsg);
361 extern bool parse_real(const char *value, double *result);
362 extern int set_config_option(const char *name, const char *value,
363  GucContext context, GucSource source,
364  GucAction action, bool changeVal, int elevel,
365  bool is_reload);
366 extern void AlterSystemSetConfigFile(AlterSystemStmt *setstmt);
367 extern char *GetConfigOptionByName(const char *name, const char **varname,
368  bool missing_ok);
369 extern void GetConfigOptionByNum(int varnum, const char **values, bool *noshow);
370 extern int GetNumConfigOptions(void);
371 
372 extern void SetPGVariable(const char *name, List *args, bool is_local);
373 extern void GetPGVariable(const char *name, DestReceiver *dest);
374 extern TupleDesc GetPGVariableResultDesc(const char *name);
375 
376 extern void ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel);
377 extern char *ExtractSetVariableArgs(VariableSetStmt *stmt);
378 
379 extern void ProcessGUCArray(ArrayType *array,
380  GucContext context, GucSource source, GucAction action);
381 extern ArrayType *GUCArrayAdd(ArrayType *array, const char *name, const char *value);
382 extern ArrayType *GUCArrayDelete(ArrayType *array, const char *name);
383 extern ArrayType *GUCArrayReset(ArrayType *array);
384 
385 #ifdef EXEC_BACKEND
386 extern void write_nondefault_variables(GucContext context);
387 extern void read_nondefault_variables(void);
388 #endif
389 
390 /* GUC serialization */
391 extern Size EstimateGUCStateSpace(void);
392 extern void SerializeGUCState(Size maxsize, char *start_address);
393 extern void RestoreGUCState(void *gucstate);
394 
395 /* Support for messages reported from GUC check hooks */
396 
400 
401 extern void GUC_check_errcode(int sqlerrcode);
402 
403 #define GUC_check_errmsg \
404  pre_format_elog_string(errno, TEXTDOMAIN), \
405  GUC_check_errmsg_string = format_elog_string
406 
407 #define GUC_check_errdetail \
408  pre_format_elog_string(errno, TEXTDOMAIN), \
409  GUC_check_errdetail_string = format_elog_string
410 
411 #define GUC_check_errhint \
412  pre_format_elog_string(errno, TEXTDOMAIN), \
413  GUC_check_errhint_string = format_elog_string
414 
415 
416 /*
417  * The following functions are not in guc.c, but are declared here to avoid
418  * having to include guc.h in some widely used headers that it really doesn't
419  * belong in.
420  */
421 
422 /* in commands/tablespace.c */
423 extern bool check_default_tablespace(char **newval, void **extra, GucSource source);
424 extern bool check_temp_tablespaces(char **newval, void **extra, GucSource source);
425 extern void assign_temp_tablespaces(const char *newval, void *extra);
426 
427 /* in catalog/namespace.c */
428 extern bool check_search_path(char **newval, void **extra, GucSource source);
429 extern void assign_search_path(const char *newval, void *extra);
430 
431 /* in access/transam/xlog.c */
432 extern bool check_wal_buffers(int *newval, void **extra, GucSource source);
433 extern void assign_xlog_sync_method(int new_sync_method, void *extra);
434 
435 #endif /* GUC_H */
void(* GucRealAssignHook)(double newval, void *extra)
Definition: guc.h:182
GucContext
Definition: guc.h:68
int NewGUCNestLevel(void)
Definition: guc.c:5076
bool log_btree_build_stats
Definition: guc.c:443
int log_min_messages
Definition: guc.c:451
void ProcessConfigFile(GucContext context)
bool log_duration
Definition: guc.c:432
void(* GucStringAssignHook)(const char *newval, void *extra)
Definition: guc.h:183
bool default_with_oids
Definition: guc.c:448
Definition: guc.h:164
void(* GucBoolAssignHook)(bool newval, void *extra)
Definition: guc.h:180
char * ExtractSetVariableArgs(VariableSetStmt *stmt)
Definition: guc.c:7420
char * GetConfigOptionByName(const char *name, const char **varname, bool missing_ok)
Definition: guc.c:8046
int set_config_option(const char *name, const char *value, GucContext context, GucSource source, GucAction action, bool changeVal, int elevel, bool is_reload)
Definition: guc.c:5919
void AlterSystemSetConfigFile(AlterSystemStmt *setstmt)
Definition: guc.c:7081
ArrayType * GUCArrayDelete(ArrayType *array, const char *name)
Definition: guc.c:9561
char * filename
Definition: guc.h:138
void assign_search_path(const char *newval, void *extra)
Definition: namespace.c:4094
bool(* GucStringCheckHook)(char **newval, void **extra, GucSource source)
Definition: guc.h:177
int sourceline
Definition: guc.h:139
return result
Definition: formatting.c:1633
char * application_name
Definition: guc.c:469
bool(* GucEnumCheckHook)(int *newval, void **extra, GucSource source)
Definition: guc.h:178
void SetConfigOption(const char *name, const char *value, GucContext context, GucSource source)
Definition: guc.c:6683
int log_min_duration_statement
Definition: guc.c:453
void AtEOXact_GUC(bool isCommit, int nestLevel)
Definition: guc.c:5090
void ProcessGUCArray(ArrayType *array, GucContext context, GucSource source, GucAction action)
Definition: guc.c:9423
PGDLLIMPORT char * GUC_check_errhint_string
Definition: guc.c:133
bool Debug_pretty_print
Definition: guc.c:436
const char * progname
Definition: pg_standby.c:37
ArrayType * GUCArrayAdd(ArrayType *array, const char *name, const char *value)
Definition: guc.c:9481
int tcp_keepalives_count
Definition: guc.c:473
bool ParseConfigDirectory(const char *includedir, const char *calling_file, int calling_lineno, int depth, int elevel, ConfigVariable **head_p, ConfigVariable **tail_p)
bool trace_sort
Definition: tuplesort.c:155
GucAction
Definition: guc.h:191
#define PGDLLIMPORT
Definition: c.h:1064
char bool
Definition: c.h:202
int GetNumConfigOptions(void)
Definition: guc.c:8348
int tcp_keepalives_interval
Definition: guc.c:472
GucSource
Definition: guc.h:105
char * cluster_name
Definition: guc.c:461
void SerializeGUCState(Size maxsize, char *start_address)
Definition: guc.c:9249
bool log_planner_stats
Definition: guc.c:439
const char * GetConfigOptionResetString(const char *name)
Definition: guc.c:6763
void RestoreGUCState(void *gucstate)
Definition: guc.c:9327
void ParseLongOption(const char *string, char **name, char **value)
Definition: guc.c:9385
bool ignore
Definition: guc.h:140
bool parse_int(const char *value, int *result, int flags, const char **hintmsg)
Definition: guc.c:5508
Definition: guc.h:75
static struct @121 value
int log_min_error_statement
Definition: guc.c:450
PGDLLIMPORT bool check_function_bodies
Definition: guc.c:447
bool Debug_print_rewritten
Definition: guc.c:435
ArrayType * GUCArrayReset(ArrayType *array)
Definition: guc.c:9633
void DefineCustomBoolVariable(const char *name, const char *short_desc, const char *long_desc, bool *valueAddr, bool bootValue, GucContext context, int flags, GucBoolCheckHook check_hook, GucBoolAssignHook assign_hook, GucShowHook show_hook)
Definition: guc.c:7740
void DefineCustomRealVariable(const char *name, const char *short_desc, const char *long_desc, double *valueAddr, double bootValue, double minValue, double maxValue, GucContext context, int flags, GucRealCheckHook check_hook, GucRealAssignHook assign_hook, GucShowHook show_hook)
Definition: guc.c:7796
char * errmsg
Definition: guc.h:137
bool log_statement_stats
Definition: guc.c:441
int tcp_keepalives_idle
Definition: guc.c:471
bool(* GucIntCheckHook)(int *newval, void **extra, GucSource source)
Definition: guc.h:175
PGDLLIMPORT char * GUC_check_errmsg_string
Definition: guc.c:131
bool applied
Definition: guc.h:141
PGDLLIMPORT char * GUC_check_errdetail_string
Definition: guc.c:132
char * HbaFileName
Definition: guc.c:463
Definition: guc.h:72
void InitializeGUCOptions(void)
Definition: guc.c:4478
char * value
Definition: guc.h:136
TupleDesc GetPGVariableResultDesc(const char *name)
Definition: guc.c:7914
int val
Definition: guc.h:167
bool check_temp_tablespaces(char **newval, void **extra, GucSource source)
Definition: tablespace.c:1157
static int elevel
Definition: vacuumlazy.c:136
bool check_search_path(char **newval, void **extra, GucSource source)
Definition: namespace.c:4060
char * name
Definition: guc.h:135
bool log_executor_stats
Definition: guc.c:440
int client_min_messages
Definition: guc.c:452
void EmitWarningsOnPlaceholders(const char *className)
Definition: guc.c:7879
bool Debug_print_parse
Definition: guc.c:434
void(* GucIntAssignHook)(int newval, void *extra)
Definition: guc.h:181
void GUC_check_errcode(int sqlerrcode)
Definition: guc.c:9784
bool log_parser_stats
Definition: guc.c:438
void GetPGVariable(const char *name, DestReceiver *dest)
Definition: guc.c:7905
bool(* GucRealCheckHook)(double *newval, void **extra, GucSource source)
Definition: guc.h:176
bool parse_real(const char *value, double *result)
Definition: guc.c:5594
void DefineCustomEnumVariable(const char *name, const char *short_desc, const char *long_desc, int *valueAddr, int bootValue, const struct config_enum_entry *options, GucContext context, int flags, GucEnumCheckHook check_hook, GucEnumAssignHook assign_hook, GucShowHook show_hook)
Definition: guc.c:7851
int temp_file_limit
Definition: guc.c:457
void SetPGVariable(const char *name, List *args, bool is_local)
Definition: guc.c:7440
char * IdentFileName
Definition: guc.c:464
size_t Size
Definition: c.h:356
struct ConfigVariable ConfigVariable
#define newval
const char * GetConfigOption(const char *name, bool missing_ok, bool restrict_superuser)
Definition: guc.c:6707
bool Debug_print_plan
Definition: guc.c:433
const char * name
Definition: guc.h:166
bool ParseConfigFile(const char *config_file, bool strict, const char *calling_file, int calling_lineno, int depth, int elevel, ConfigVariable **head_p, ConfigVariable **tail_p)
const char * name
Definition: encode.c:521
void DefineCustomIntVariable(const char *name, const char *short_desc, const char *long_desc, int *valueAddr, int bootValue, int minValue, int maxValue, GucContext context, int flags, GucIntCheckHook check_hook, GucIntAssignHook assign_hook, GucShowHook show_hook)
Definition: guc.c:7766
static const char * userDoption
Definition: postgres.c:154
static Datum values[MAXATTR]
Definition: bootstrap.c:163
void assign_temp_tablespaces(const char *newval, void *extra)
Definition: tablespace.c:1262
tuple list
Definition: sort-test.py:11
void AtStart_GUC(void)
Definition: guc.c:5056
const char *(* GucShowHook)(void)
Definition: guc.h:186
void BeginReportingGUCOptions(void)
Definition: guc.c:5371
bool ParseConfigFp(FILE *fp, const char *config_file, int depth, int elevel, ConfigVariable **head_p, ConfigVariable **tail_p)
char * external_pid_file
Definition: guc.c:465
void DefineCustomStringVariable(const char *name, const char *short_desc, const char *long_desc, char **valueAddr, const char *bootValue, GucContext context, int flags, GucStringCheckHook check_hook, GucStringAssignHook assign_hook, GucShowHook show_hook)
Definition: guc.c:7826
bool SelectConfigFiles(const char *userDoption, const char *progname)
Definition: guc.c:4700
void ResetAllOptions(void)
Definition: guc.c:4875
void assign_xlog_sync_method(int new_sync_method, void *extra)
Definition: xlog.c:10060
void ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel)
Definition: guc.c:7296
int num_temp_buffers
Definition: guc.c:459
void FreeConfigVariables(ConfigVariable *list)
char * ConfigFileName
Definition: guc.c:462
void(* GucEnumAssignHook)(int newval, void *extra)
Definition: guc.h:184
struct ConfigVariable * next
Definition: guc.h:142
bool check_default_tablespace(char **newval, void **extra, GucSource source)
Definition: tablespace.c:1062
Size EstimateGUCStateSpace(void)
Definition: guc.c:9102
bool check_wal_buffers(int *newval, void **extra, GucSource source)
Definition: xlog.c:4771
Definition: pg_list.h:45
int log_temp_files
Definition: guc.c:454
bool hidden
Definition: guc.h:168
bool(* GucBoolCheckHook)(bool *newval, void **extra, GucSource source)
Definition: guc.h:174
void GetConfigOptionByNum(int varnum, const char **values, bool *noshow)
Definition: guc.c:8083