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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_BYTE 0x8000 /* value is in bytes */
223 #define GUC_UNIT_MEMORY 0xF000 /* mask for size-related units */
224 
225 #define GUC_UNIT_MS 0x10000 /* value is in milliseconds */
226 #define GUC_UNIT_S 0x20000 /* value is in seconds */
227 #define GUC_UNIT_MIN 0x30000 /* value is in minutes */
228 #define GUC_UNIT_TIME 0xF0000 /* mask for time-related units */
229 
230 #define GUC_UNIT (GUC_UNIT_MEMORY | GUC_UNIT_TIME)
231 
232 
233 /* GUC vars that are actually declared in guc.c, rather than elsewhere */
234 extern bool log_duration;
235 extern bool Debug_print_plan;
236 extern bool Debug_print_parse;
237 extern bool Debug_print_rewritten;
238 extern bool Debug_pretty_print;
239 
240 extern bool log_parser_stats;
241 extern bool log_planner_stats;
242 extern bool log_executor_stats;
243 extern bool log_statement_stats;
244 extern bool log_btree_build_stats;
245 
247 extern bool default_with_oids;
248 extern bool session_auth_is_superuser;
249 
250 extern int log_min_error_statement;
251 extern PGDLLIMPORT int log_min_messages;
253 extern int log_min_duration_statement;
254 extern int log_temp_files;
255 
256 extern int temp_file_limit;
257 
258 extern int num_temp_buffers;
259 
260 extern char *cluster_name;
261 extern PGDLLIMPORT char *ConfigFileName;
262 extern char *HbaFileName;
263 extern char *IdentFileName;
264 extern char *external_pid_file;
265 
266 extern char *application_name;
267 
268 extern int tcp_keepalives_idle;
269 extern int tcp_keepalives_interval;
270 extern int tcp_keepalives_count;
271 
272 #ifdef TRACE_SORT
273 extern bool trace_sort;
274 #endif
275 
276 /*
277  * Functions exported by guc.c
278  */
279 extern void SetConfigOption(const char *name, const char *value,
280  GucContext context, GucSource source);
281 
282 extern void DefineCustomBoolVariable(
283  const char *name,
284  const char *short_desc,
285  const char *long_desc,
286  bool *valueAddr,
287  bool bootValue,
288  GucContext context,
289  int flags,
290  GucBoolCheckHook check_hook,
291  GucBoolAssignHook assign_hook,
292  GucShowHook show_hook);
293 
294 extern void DefineCustomIntVariable(
295  const char *name,
296  const char *short_desc,
297  const char *long_desc,
298  int *valueAddr,
299  int bootValue,
300  int minValue,
301  int maxValue,
302  GucContext context,
303  int flags,
304  GucIntCheckHook check_hook,
305  GucIntAssignHook assign_hook,
306  GucShowHook show_hook);
307 
308 extern void DefineCustomRealVariable(
309  const char *name,
310  const char *short_desc,
311  const char *long_desc,
312  double *valueAddr,
313  double bootValue,
314  double minValue,
315  double maxValue,
316  GucContext context,
317  int flags,
318  GucRealCheckHook check_hook,
319  GucRealAssignHook assign_hook,
320  GucShowHook show_hook);
321 
322 extern void DefineCustomStringVariable(
323  const char *name,
324  const char *short_desc,
325  const char *long_desc,
326  char **valueAddr,
327  const char *bootValue,
328  GucContext context,
329  int flags,
330  GucStringCheckHook check_hook,
331  GucStringAssignHook assign_hook,
332  GucShowHook show_hook);
333 
334 extern void DefineCustomEnumVariable(
335  const char *name,
336  const char *short_desc,
337  const char *long_desc,
338  int *valueAddr,
339  int bootValue,
340  const struct config_enum_entry *options,
341  GucContext context,
342  int flags,
343  GucEnumCheckHook check_hook,
344  GucEnumAssignHook assign_hook,
345  GucShowHook show_hook);
346 
347 extern void EmitWarningsOnPlaceholders(const char *className);
348 
349 extern const char *GetConfigOption(const char *name, bool missing_ok,
350  bool restrict_superuser);
351 extern const char *GetConfigOptionResetString(const char *name);
352 extern void ProcessConfigFile(GucContext context);
353 extern void InitializeGUCOptions(void);
354 extern bool SelectConfigFiles(const char *userDoption, const char *progname);
355 extern void ResetAllOptions(void);
356 extern void AtStart_GUC(void);
357 extern int NewGUCNestLevel(void);
358 extern void AtEOXact_GUC(bool isCommit, int nestLevel);
359 extern void BeginReportingGUCOptions(void);
360 extern void ParseLongOption(const char *string, char **name, char **value);
361 extern bool parse_int(const char *value, int *result, int flags,
362  const char **hintmsg);
363 extern bool parse_real(const char *value, double *result);
364 extern int set_config_option(const char *name, const char *value,
365  GucContext context, GucSource source,
366  GucAction action, bool changeVal, int elevel,
367  bool is_reload);
368 extern void AlterSystemSetConfigFile(AlterSystemStmt *setstmt);
369 extern char *GetConfigOptionByName(const char *name, const char **varname,
370  bool missing_ok);
371 extern void GetConfigOptionByNum(int varnum, const char **values, bool *noshow);
372 extern int GetNumConfigOptions(void);
373 
374 extern void SetPGVariable(const char *name, List *args, bool is_local);
375 extern void GetPGVariable(const char *name, DestReceiver *dest);
376 extern TupleDesc GetPGVariableResultDesc(const char *name);
377 
378 extern void ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel);
379 extern char *ExtractSetVariableArgs(VariableSetStmt *stmt);
380 
381 extern void ProcessGUCArray(ArrayType *array,
382  GucContext context, GucSource source, GucAction action);
383 extern ArrayType *GUCArrayAdd(ArrayType *array, const char *name, const char *value);
384 extern ArrayType *GUCArrayDelete(ArrayType *array, const char *name);
385 extern ArrayType *GUCArrayReset(ArrayType *array);
386 
387 #ifdef EXEC_BACKEND
388 extern void write_nondefault_variables(GucContext context);
389 extern void read_nondefault_variables(void);
390 #endif
391 
392 /* GUC serialization */
393 extern Size EstimateGUCStateSpace(void);
394 extern void SerializeGUCState(Size maxsize, char *start_address);
395 extern void RestoreGUCState(void *gucstate);
396 
397 /* Support for messages reported from GUC check hooks */
398 
402 
403 extern void GUC_check_errcode(int sqlerrcode);
404 
405 #define GUC_check_errmsg \
406  pre_format_elog_string(errno, TEXTDOMAIN), \
407  GUC_check_errmsg_string = format_elog_string
408 
409 #define GUC_check_errdetail \
410  pre_format_elog_string(errno, TEXTDOMAIN), \
411  GUC_check_errdetail_string = format_elog_string
412 
413 #define GUC_check_errhint \
414  pre_format_elog_string(errno, TEXTDOMAIN), \
415  GUC_check_errhint_string = format_elog_string
416 
417 
418 /*
419  * The following functions are not in guc.c, but are declared here to avoid
420  * having to include guc.h in some widely used headers that it really doesn't
421  * belong in.
422  */
423 
424 /* in commands/tablespace.c */
425 extern bool check_default_tablespace(char **newval, void **extra, GucSource source);
426 extern bool check_temp_tablespaces(char **newval, void **extra, GucSource source);
427 extern void assign_temp_tablespaces(const char *newval, void *extra);
428 
429 /* in catalog/namespace.c */
430 extern bool check_search_path(char **newval, void **extra, GucSource source);
431 extern void assign_search_path(const char *newval, void *extra);
432 
433 /* in access/transam/xlog.c */
434 extern bool check_wal_buffers(int *newval, void **extra, GucSource source);
435 extern void assign_xlog_sync_method(int new_sync_method, void *extra);
436 
437 #endif /* GUC_H */
GucContext
Definition: guc.h:68
void(* GucBoolAssignHook)(bool newval, void *extra)
Definition: guc.h:180
int NewGUCNestLevel(void)
Definition: guc.c:5093
bool log_btree_build_stats
Definition: guc.c:443
PGDLLIMPORT char * ConfigFileName
Definition: guc.c:463
void ProcessConfigFile(GucContext context)
bool log_duration
Definition: guc.c:432
bool(* GucEnumCheckHook)(int *newval, void **extra, GucSource source)
Definition: guc.h:178
bool(* GucBoolCheckHook)(bool *newval, void **extra, GucSource source)
Definition: guc.h:174
bool default_with_oids
Definition: guc.c:448
Definition: guc.h:164
PGDLLIMPORT int client_min_messages
Definition: guc.c:453
char * ExtractSetVariableArgs(VariableSetStmt *stmt)
Definition: guc.c:7436
char * GetConfigOptionByName(const char *name, const char **varname, bool missing_ok)
Definition: guc.c:8062
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:5936
void AlterSystemSetConfigFile(AlterSystemStmt *setstmt)
Definition: guc.c:7098
ArrayType * GUCArrayDelete(ArrayType *array, const char *name)
Definition: guc.c:9573
char * filename
Definition: guc.h:138
const char *(* GucShowHook)(void)
Definition: guc.h:186
void assign_search_path(const char *newval, void *extra)
Definition: namespace.c:4094
void(* GucStringAssignHook)(const char *newval, void *extra)
Definition: guc.h:183
int sourceline
Definition: guc.h:139
char * application_name
Definition: guc.c:470
void SetConfigOption(const char *name, const char *value, GucContext context, GucSource source)
Definition: guc.c:6700
int log_min_duration_statement
Definition: guc.c:454
void AtEOXact_GUC(bool isCommit, int nestLevel)
Definition: guc.c:5107
void ProcessGUCArray(ArrayType *array, GucContext context, GucSource source, GucAction action)
Definition: guc.c:9435
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:9493
int tcp_keepalives_count
Definition: guc.c:474
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:118
GucAction
Definition: guc.h:191
#define PGDLLIMPORT
Definition: c.h:1050
char bool
Definition: c.h:247
int GetNumConfigOptions(void)
Definition: guc.c:8367
int tcp_keepalives_interval
Definition: guc.c:473
void(* GucIntAssignHook)(int newval, void *extra)
Definition: guc.h:181
GucSource
Definition: guc.h:105
bool(* GucIntCheckHook)(int *newval, void **extra, GucSource source)
Definition: guc.h:175
char * cluster_name
Definition: guc.c:462
void SerializeGUCState(Size maxsize, char *start_address)
Definition: guc.c:9274
bool log_planner_stats
Definition: guc.c:439
const char * GetConfigOptionResetString(const char *name)
Definition: guc.c:6780
void RestoreGUCState(void *gucstate)
Definition: guc.c:9339
void ParseLongOption(const char *string, char **name, char **value)
Definition: guc.c:9397
bool ignore
Definition: guc.h:140
bool parse_int(const char *value, int *result, int flags, const char **hintmsg)
Definition: guc.c:5525
Definition: guc.h:75
int log_min_error_statement
Definition: guc.c:451
PGDLLIMPORT bool check_function_bodies
Definition: guc.c:447
bool Debug_print_rewritten
Definition: guc.c:435
ArrayType * GUCArrayReset(ArrayType *array)
Definition: guc.c:9645
bool session_auth_is_superuser
Definition: guc.c:449
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:7756
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:7812
char * errmsg
Definition: guc.h:137
bool log_statement_stats
Definition: guc.c:441
int tcp_keepalives_idle
Definition: guc.c:472
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:464
Definition: guc.h:72
void InitializeGUCOptions(void)
Definition: guc.c:4495
char * value
Definition: guc.h:136
TupleDesc GetPGVariableResultDesc(const char *name)
Definition: guc.c:7930
int val
Definition: guc.h:167
PGDLLIMPORT int log_min_messages
Definition: guc.c:452
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
bool(* GucRealCheckHook)(double *newval, void **extra, GucSource source)
Definition: guc.h:176
void EmitWarningsOnPlaceholders(const char *className)
Definition: guc.c:7895
bool Debug_print_parse
Definition: guc.c:434
void GUC_check_errcode(int sqlerrcode)
Definition: guc.c:9796
bool log_parser_stats
Definition: guc.c:438
void GetPGVariable(const char *name, DestReceiver *dest)
Definition: guc.c:7921
bool parse_real(const char *value, double *result)
Definition: guc.c:5611
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:7867
int temp_file_limit
Definition: guc.c:458
void SetPGVariable(const char *name, List *args, bool is_local)
Definition: guc.c:7456
char * IdentFileName
Definition: guc.c:465
void(* GucEnumAssignHook)(int newval, void *extra)
Definition: guc.h:184
size_t Size
Definition: c.h:404
struct ConfigVariable ConfigVariable
#define newval
const char * GetConfigOption(const char *name, bool missing_ok, bool restrict_superuser)
Definition: guc.c:6724
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)
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:7782
static const char * userDoption
Definition: postgres.c:159
static Datum values[MAXATTR]
Definition: bootstrap.c:164
void assign_temp_tablespaces(const char *newval, void *extra)
Definition: tablespace.c:1262
void AtStart_GUC(void)
Definition: guc.c:5073
void BeginReportingGUCOptions(void)
Definition: guc.c:5388
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:466
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:7842
bool SelectConfigFiles(const char *userDoption, const char *progname)
Definition: guc.c:4717
void ResetAllOptions(void)
Definition: guc.c:4892
void assign_xlog_sync_method(int new_sync_method, void *extra)
Definition: xlog.c:10085
void ExecSetVariableStmt(VariableSetStmt *stmt, bool isTopLevel)
Definition: guc.c:7312
int num_temp_buffers
Definition: guc.c:460
void FreeConfigVariables(ConfigVariable *list)
struct ConfigVariable * next
Definition: guc.h:142
bool check_default_tablespace(char **newval, void **extra, GucSource source)
Definition: tablespace.c:1062
void(* GucRealAssignHook)(double newval, void *extra)
Definition: guc.h:182
Size EstimateGUCStateSpace(void)
Definition: guc.c:9127
bool check_wal_buffers(int *newval, void **extra, GucSource source)
Definition: xlog.c:4787
Definition: pg_list.h:45
bool(* GucStringCheckHook)(char **newval, void **extra, GucSource source)
Definition: guc.h:177
int log_temp_files
Definition: guc.c:455
bool hidden
Definition: guc.h:168
void GetConfigOptionByNum(int varnum, const char **values, bool *noshow)
Definition: guc.c:8099