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/* $PostgreSQL: pgsql/src/interfaces/ecpg/ecpglib/extern.h,v 1.16 2006/03/11 04:38:39 momjian Exp $ */
#ifndef _ECPG_LIB_EXTERN_H
#define _ECPG_LIB_EXTERN_H
#include "postgres_fe.h"
#include "libpq-fe.h"
#include "sqlca.h"
enum COMPAT_MODE
{
ECPG_COMPAT_PGSQL = 0, ECPG_COMPAT_INFORMIX, ECPG_COMPAT_INFORMIX_SE
};
#define INFORMIX_MODE(X) ((X) == ECPG_COMPAT_INFORMIX || (X) == ECPG_COMPAT_INFORMIX_SE)
enum ARRAY_TYPE
{
ECPG_ARRAY_NOT_SET, ECPG_ARRAY_ARRAY, ECPG_ARRAY_VECTOR, ECPG_ARRAY_NONE
};
/* Here are some methods used by the lib. */
/* Returns a pointer to a string containing a simple type name. */
void ECPGadd_mem(void *ptr, int lineno);
bool ECPGget_data(const PGresult *, int, int, int, enum ECPGttype type,
enum ECPGttype, char *, char *, long, long, long,
enum ARRAY_TYPE, enum COMPAT_MODE, bool);
struct connection *ECPGget_connection(const char *);
char *ECPGalloc(long, int);
char *ECPGrealloc(void *, long, int);
void ECPGfree(void *);
bool ECPGinit(const struct connection *, const char *, const int);
char *ECPGstrdup(const char *, int);
const char *ECPGtype_name(enum ECPGttype);
unsigned int ECPGDynamicType(Oid);
void ECPGfree_auto_mem(void);
void ECPGclear_auto_mem(void);
struct descriptor *ecpggetdescp(int, char *);
/* A generic varchar type. */
struct ECPGgeneric_varchar
{
int len;
char arr[1];
};
/*
* type information cache
*/
struct ECPGtype_information_cache
{
struct ECPGtype_information_cache *next;
int oid;
bool isarray;
};
/* structure to store one statement */
struct statement
{
int lineno;
char *command;
struct connection *connection;
enum COMPAT_MODE compat;
bool force_indicator;
struct variable *inlist;
struct variable *outlist;
};
/* structure to store connections */
struct connection
{
char *name;
PGconn *connection;
bool committed;
int autocommit;
struct ECPGtype_information_cache *cache_head;
struct connection *next;
};
/* structure to store descriptors */
struct descriptor
{
char *name;
PGresult *result;
struct descriptor *next;
int count;
struct descriptor_item *items;
};
extern struct descriptor *all_descriptors;
struct descriptor_item
{
int num;
char *data;
int indicator;
int length;
int precision;
int scale;
int type;
struct descriptor_item *next;
};
struct variable
{
enum ECPGttype type;
void *value;
void *pointer;
long varcharsize;
long arrsize;
long offset;
enum ECPGttype ind_type;
void *ind_value;
void *ind_pointer;
long ind_varcharsize;
long ind_arrsize;
long ind_offset;
struct variable *next;
};
PGresult **ECPGdescriptor_lvalue(int line, const char *descriptor);
bool ECPGstore_result(const PGresult *results, int act_field,
const struct statement * stmt, struct variable * var);
bool ECPGstore_input(const int, const bool, const struct variable *, const char **, bool *);
#if defined(__GNUC__) && (defined (__powerpc__) || defined(__amd64__) || defined(__x86_64__))
/* work around a gcc/ABI bug with va_lists on ppc+amd64 */
void ECPGget_variable(va_list, enum ECPGttype, struct variable *, bool);
#else
void ECPGget_variable(va_list *, enum ECPGttype, struct variable *, bool);
#endif
/* SQLSTATE values generated or processed by ecpglib (intentionally
* not exported -- users should refer to the codes directly) */
#define ECPG_SQLSTATE_NO_DATA "02000"
#define ECPG_SQLSTATE_USING_CLAUSE_DOES_NOT_MATCH_PARAMETERS "07001"
#define ECPG_SQLSTATE_USING_CLAUSE_DOES_NOT_MATCH_TARGETS "07002"
#define ECPG_SQLSTATE_RESTRICTED_DATA_TYPE_ATTRIBUTE_VIOLATION "07006"
#define ECPG_SQLSTATE_INVALID_DESCRIPTOR_INDEX "07009"
#define ECPG_SQLSTATE_SQLCLIENT_UNABLE_TO_ESTABLISH_SQLCONNECTION "08001"
#define ECPG_SQLSTATE_CONNECTION_DOES_NOT_EXIST "08003"
#define ECPG_SQLSTATE_TRANSACTION_RESOLUTION_UNKNOWN "08007"
#define ECPG_SQLSTATE_CARDINALITY_VIOLATION "21000"
#define ECPG_SQLSTATE_NULL_VALUE_NO_INDICATOR_PARAMETER "22002"
#define ECPG_SQLSTATE_ACTIVE_SQL_TRANSACTION "25001"
#define ECPG_SQLSTATE_NO_ACTIVE_SQL_TRANSACTION "25P01"
#define ECPG_SQLSTATE_INVALID_SQL_STATEMENT_NAME "26000"
#define ECPG_SQLSTATE_INVALID_SQL_DESCRIPTOR_NAME "33000"
#define ECPG_SQLSTATE_INVALID_CURSOR_NAME "34000"
#define ECPG_SQLSTATE_SYNTAX_ERROR "42601"
#define ECPG_SQLSTATE_DATATYPE_MISMATCH "42804"
#define ECPG_SQLSTATE_DUPLICATE_CURSOR "42P03"
/* implementation-defined internal errors of ecpg */
#define ECPG_SQLSTATE_ECPG_INTERNAL_ERROR "YE000"
#define ECPG_SQLSTATE_ECPG_OUT_OF_MEMORY "YE001"
#endif /* _ECPG_LIB_EXTERN_H */
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