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fillfactor), and
* option is a relopt_value pointer.
*
* The normal way to use this is to loop on the relopt_value array returned by
* parseRelOptions:
* for (i = 0; options[i].gen->name; i++)
* {
* if (HAVE_RELOPTION("fillfactor", options[i])
* {
* HANDLE_INT_RELOPTION("fillfactor", rdopts->fillfactor, options[i], &isset);
* continue;
* }
* if (HAVE_RELOPTION("default_row_acl", options[i])
* {
* ...
* }
* ...
* if (validate)
* ereport(ERROR,
* (errmsg("unknown option")));
* }
*
* Note that this is more or less the same that fillRelOptions does, so only
* use this if you need to do something non-standard within some option's
* code block.
*/
#define HAVE_RELOPTION(optname, option) \
(pg_strncasecmp(option.gen->name, optname, option.gen->namelen + 1) == 0)
#define HANDLE_INT_RELOPTION(optname, var, option, wasset) \
do { \
if (option.isset) \
var = option.values.int_val; \
else \
var = ((relopt_int *) option.gen)->default_val; \
(wasset) != NULL ? *(wasset) = option.isset : (dummyret)NULL; \
} while (0)
#define HANDLE_BOOL_RELOPTION(optname, var, option, wasset) \
do { \
if (option.isset) \
var = option.values.bool_val; \
else \
var = ((relopt_bool *) option.gen)->default_val; \
(wasset) != NULL ? *(wasset) = option.isset : (dummyret) NULL; \
} while (0)
#define HANDLE_REAL_RELOPTION(optname, var, option, wasset) \
do { \
if (option.isset) \
var = option.values.real_val; \
else \
var = ((relopt_real *) option.gen)->default_val; \
(wasset) != NULL ? *(wasset) = option.isset : (dummyret) NULL; \
} while (0)
/*
* Note that this assumes that the variable is already allocated at the tail of
* reloptions structure (StdRdOptions or equivalent).
*
* "base" is a pointer to the reloptions structure, and "offset" is an integer
* variable that must be initialized to sizeof(reloptions structure). This
* struct must have been allocated with enough space to hold any string option
* present, including terminating \0 for every option. SET_VARSIZE() must be
* called on the struct with this offset as the second argument, after all the
* string options have been processed.
*/
#define HANDLE_STRING_RELOPTION(optname, var, option, base, offset, wasset) \
do { \
relopt_string *optstring = (relopt_string *) option.gen;\
char *string_val; \
if (option.isset) \
string_val = option.values.string_val; \
else if (!optstring->default_isnull) \
string_val = optstring->default_val; \
else \
string_val = NULL; \
(wasset) != NULL ? *(wasset) = option.isset : (dummyret) NULL; \
if (string_val == NULL) \
var = 0; \
else \
{ \
strcpy(((char *)(base)) + (offset), string_val); \
var = (offset); \
(offset) += strlen(string_val) + 1; \
} \
} while (0)
/*
* For use during amoptions: get the strlen of a string option
* (either default or the user defined value)
*/
#define GET_STRING_RELOPTION_LEN(option) \
((option).isset ? strlen((option).values.string_val) : \
((relopt_string *) (option).gen)->default_len)
/*
* For use by code reading options already parsed: get a pointer to the string
* value itself. "optstruct" is the StdRdOption struct or equivalent, "member"
* is the struct member corresponding to the string option
*/
#define GET_STRING_RELOPTION(optstruct, member) \
((optstruct)->member == 0 ? NULL : \
(char *)(optstruct) + (optstruct)->member)
extern relopt_kind add_reloption_kind(void);
extern void add_bool_reloption(bits32 kinds, char *name, char *desc,
bool default_val);
extern void add_int_reloption(bits32 kinds, char *name, char *desc,
int default_val, int min_val, int max_val);
extern void add_real_reloption(bits32 kinds, char *name, char *desc,
double default_val, double min_val, double max_val);
extern void add_string_reloption(bits32 kinds, char *name, char *desc,
char *default_val, validate_string_relopt validator);
extern Datum transformRelOptions(Datum oldOptions, List *defList,
char *namspace, char *validnsps[],
bool ignoreOids, bool isReset);
extern List *untransformRelOptions(Datum options);
extern bytea *extractRelOptions(HeapTuple tuple, TupleDesc tupdesc,
Oid amoptions);
extern relopt_value *parseRelOptions(Datum options, bool validate,
relopt_kind kind, int *numrelopts);
extern void *allocateReloptStruct(Size base, relopt_value *options,
int numoptions);
extern void fillRelOptions(void *rdopts, Size basesize,
relopt_value *options, int numoptions,
bool validate,
const relopt_parse_elt *elems, int nelems);
extern bytea *default_reloptions(Datum reloptions, bool validate,
relopt_kind kind);
extern bytea *heap_reloptions(char relkind, Datum reloptions, bool validate);
extern bytea *index_reloptions(RegProcedure amoptions, Datum reloptions,
bool validate);
extern bytea *attribute_reloptions(Datum reloptions, bool validate);
extern bytea *tablespace_reloptions(Datum reloptions, bool validate);
#endif /* RELOPTIONS_H */