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dbdimp.h
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dbdimp.h
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/*
Copyright (c) 2011 Marius Popa <[email protected]>
Copyright (c) 2010 Mike Pomraning <[email protected]>
Copyright (c) 1999-2008 Edwin Pratomo
Portions Copyright (c) 2001-2005 Daniel Ritz
You may distribute under the terms of either the GNU General Public
License or the Artistic License, as specified in the Perl README file.
*/
#include <DBIXS.h> /* installed by the DBI module */
/* make it compile with DBI < 1.20 */
#ifndef SQL_TYPE_DATE
# define SQL_TYPE_DATE 91
#endif
#ifndef SQL_TYPE_TIME
# define SQL_TYPE_TIME 92
#endif
#ifndef SQL_BLOB
# define SQL_BLOB 30
#endif
#ifndef SQL_ARRAY
# define SQL_ARRAY 50
#endif
static const int DBI_SQL_CHAR = SQL_CHAR;
static const int DBI_SQL_NUMERIC = SQL_NUMERIC;
static const int DBI_SQL_DECIMAL = SQL_DECIMAL;
static const int DBI_SQL_INTEGER = SQL_INTEGER;
static const int DBI_SQL_SMALLINT = SQL_SMALLINT;
static const int DBI_SQL_BIGINT = SQL_BIGINT;
static const int DBI_SQL_FLOAT = SQL_FLOAT;
static const int DBI_SQL_REAL = SQL_REAL;
static const int DBI_SQL_DOUBLE = SQL_DOUBLE;
static const int DBI_SQL_DATE = SQL_DATE;
static const int DBI_SQL_TIME = SQL_TIME;
static const int DBI_SQL_TIMESTAMP = SQL_TIMESTAMP;
static const int DBI_SQL_VARCHAR = SQL_VARCHAR;
static const int DBI_SQL_TYPE_TIME = SQL_TYPE_TIME;
static const int DBI_SQL_TYPE_DATE = SQL_TYPE_DATE;
static const int DBI_SQL_ARRAY = SQL_ARRAY;
static const int DBI_SQL_BLOB = SQL_BLOB;
static const int DBI_SQL_BOOLEAN = SQL_BOOLEAN;
/* conflicts */
#undef SQL_CHAR
#undef SQL_NUMERIC
#undef SQL_DECIMAL
#undef SQL_INTEGER
#undef SQL_SMALLINT
#undef SQL_BIGINT
#undef SQL_FLOAT
#undef SQL_REAL
#undef SQL_DOUBLE
#undef SQL_DATE
#undef SQL_TIME
#undef SQL_TIMESTAMP
#undef SQL_VARCHAR
#undef SQL_TYPE_TIME
#undef SQL_TYPE_DATE
#undef SQL_ARRAY
#undef SQL_BLOB
#undef SQL_BOOLEAN
#ifdef __CYGWIN__
#define _WIN32
#define __stdcall __attribute__((stdcall))
#define __cdecl __attribute__((cdecl))
#include <ibase.h>
#undef _WIN32
#else
#include <ibase.h>
#endif
#include <time.h>
/* defines */
/* Firebird API 20 */
#if !defined(FB_API_VER) || FB_API_VER < 20
typedef void (*ISC_EVENT_CALLBACK)();
#endif
#ifndef SQLDA_CURRENT_VERSION
# define SQLDA_OK_VERSION SQLDA_VERSION1
#else
# define SQLDA_OK_VERSION SQLDA_CURRENT_VERSION
#endif
#define IB_ALLOC_FAIL 2
#define IB_FETCH_ERROR 1
#ifndef ISC_STATUS_LENGTH
# define ISC_STATUS_LENGTH 20
#endif
#ifndef SvPV_nolen
# define SvPV_nolen(sv) SvPV(sv, na)
#endif
#define FREE_SETNULL(ptr) \
do { \
if (ptr) \
{ \
Safefree(ptr); \
ptr = NULL; \
} \
} while (0)
#define DPB_FILL_BYTE(dpb, code, byte) \
do { \
*dpb++ = code; \
*dpb++ = 1; \
*dpb++ = byte; \
} while (0)
#define DPB_FILL_INTEGER(dpb, code, integer) \
do { \
ISC_LONG tmp = integer; \
*dpb++ = code; \
*dpb++ = sizeof(tmp); \
tmp = isc_vax_integer((char *) &tmp, sizeof(tmp)); \
Copy(&tmp, dpb, 1, ISC_LONG); \
dpb += sizeof(tmp); \
} while (0)
#define DPB_FILL_STRING(dpb, code, string) \
DPB_FILL_STRING_LEN(dpb, code, string, strlen(string) )
#define DPB_FILL_STRING_LEN(dpb, code, string, len) \
do { \
if ( len > 255 ) \
croak("DPB string too long (%ld)", (size_t) len); \
*dpb++ = code; \
*dpb++ = len; \
strncpy(dpb, string, (size_t) len); \
dpb += len; \
} while (0)
#define DPB_PREP_BYTE(buflen) \
do { \
/* code, length, data */ \
buflen += 3; \
} while (0)
#define DPB_PREP_INTEGER(buflen) \
do { \
buflen += sizeof(ISC_LONG) + 2; \
} while (0)
#define DPB_PREP_STRING(buflen, string) \
DPB_PREP_STRING_LEN(buflen, strlen(string))
#define DPB_PREP_STRING_LEN(buflen, len) \
do { \
buflen += len + 2; \
} while (0)
# define TIMESTAMP_FPSECS(value) \
(long)(((ISC_TIMESTAMP *)value)->timestamp_time % ISC_TIME_SECONDS_PRECISION)
# define TIMESTAMP_ADD_FPSECS(value, inc) \
((ISC_TIMESTAMP *)value)->timestamp_time += (inc % ISC_TIME_SECONDS_PRECISION)
# define TIME_FPSECS(value) \
(long)((*(ISC_TIME *)value) % ISC_TIME_SECONDS_PRECISION)
# define TIME_ADD_FPSECS(value, inc) \
(*(ISC_TIME *)value) += (inc % ISC_TIME_SECONDS_PRECISION)
#ifndef NO_TRACE_MSGS
# define DBI_TRACE(level, args) \
do { \
if (DBIS->debug >= level) \
PerlIO_printf args ; \
} while (0)
# define DBI_TRACE_imp_xxh(imp_xxh, level, args) \
do { \
if (DBIc_TRACE_LEVEL(imp_xxh) >= level) \
PerlIO_printf args; \
} while (0)
#else
# define DBI_TRACE(level, args) do {} while (0)
# define DBI_TRACE_imp_xxh(imp_xxh, level, args) do {} while (0)
#endif
#define BLOB_SEGMENT (256)
#define DEFAULT_SQL_DIALECT (3)
#define INPUT_XSQLDA (1)
#define OUTPUT_XSQLDA (0)
#define PLAN_BUFFER_LEN 2048
#define SUCCESS (0)
#define FAILURE (-1)
/*
* Hardcoded limit on the length of a Blob that can be fetched into a scalar.
* If you want to fetch Blobs that are bigger, write your own Perl
*/
#define MAX_EVENTS 15
typedef enum { ACTIVE, INACTIVE } IB_EVENT_STATE;
/****************/
/* data types */
/****************/
/* structs for event */
typedef struct
{
imp_dbh_t *dbh; /* pointer to parent dbh */
ISC_LONG id; /* event id assigned by IB */
#if defined(INCLUDE_TYPES_PUB_H)
ISC_UCHAR *event_buffer;
ISC_UCHAR *result_buffer;
#else
char ISC_FAR *event_buffer;
char ISC_FAR *result_buffer;
#endif
char ISC_FAR * ISC_FAR *names; /* names of events of interest */
unsigned short num; /* number of events of interest */
short epb_length; /* length of event parameter buffer */
SV *perl_cb; /* perl callback for this event */
IB_EVENT_STATE state;
char exec_cb;
} IB_EVENT;
/* Define driver handle data structure */
struct imp_drh_st
{
dbih_drc_t com; /* MUST be first element in structure */
};
/* Define dbh implementor data structure */
struct imp_dbh_st
{
dbih_dbc_t com; /* MUST be first element in structure */
isc_db_handle db;
isc_tr_handle tr;
char ISC_FAR *tpb_buffer; /* transaction parameter buffer */
unsigned short tpb_length; /* length of tpb_buffer */
unsigned short sqldialect; /* default sql dialect */
char soft_commit; /* use soft commit ? */
char *ib_charset;
bool ib_enable_utf8;
unsigned int sth_ddl; /* number of open DDL statments */
imp_sth_t *first_sth; /* pointer to first statement */
imp_sth_t *last_sth; /* pointer to last statement */
#if defined(USE_THREADS) || defined(USE_ITHREADS) || defined(MULTIPLICITY)
void *context; /* perl context for threads / multiplicity */
#endif
/* per dbh default strftime() formats */
char *dateformat;
char *timestampformat;
char *timeformat;
unsigned char *charset_bytes_per_char;
};
/* Define sth implementor data structure */
struct imp_sth_st
{
dbih_stc_t com; /* MUST be first element in structure */
isc_stmt_handle stmt;
XSQLDA *out_sqlda; /* for storing select-list items */
XSQLDA *in_sqlda; /* for storing placeholder values */
char *cursor_name;
long type; /* statement type */
char count_item;
int affected; /* number of affected rows */
char *dateformat;
char *timestampformat;
char *timeformat;
imp_sth_t *prev_sth; /* pointer to prev statement */
imp_sth_t *next_sth; /* pointer to next statement */
HV *param_values; /* For storing the ParamValues attribute */
};
/* newer header file defines the struct already */
typedef struct dbd_vary
{
short vary_length;
char vary_string [1];
} DBD_VARY;
/* These defines avoid name clashes for multiple statically linked DBD's */
#define dbd_init ib_init
#define dbd_discon_all ib_discon_all
#define dbd_db_login ib_db_login
#define dbd_db_login6 ib_db_login6
#define dbd_db_do ib_db_do
#define dbd_db_commit ib_db_commit
#define dbd_db_rollback ib_db_rollback
#define dbd_db_disconnect ib_db_disconnect
#define dbd_db_destroy ib_db_destroy
#define dbd_db_STORE_attrib ib_db_STORE_attrib
#define dbd_db_FETCH_attrib ib_db_FETCH_attrib
#define dbd_st_prepare ib_st_prepare
#define dbd_st_rows ib_st_rows
#define dbd_st_execute ib_st_execute
#define dbd_st_fetch ib_st_fetch
#define dbd_st_finish ib_st_finish
#define dbd_st_destroy ib_st_destroy
#define dbd_st_blob_read ib_st_blob_read
#define dbd_st_STORE_attrib ib_st_STORE_attrib
#define dbd_st_FETCH_attrib ib_st_FETCH_attrib
#define dbd_bind_ph ib_bind_ph
void do_error _((SV *h, int rc, char *what));
void dbd_init _((dbistate_t *dbistate));
void dbd_preparse _((SV *sth, imp_sth_t *imp_sth, char *statement));
int dbd_describe _((SV *sth, imp_sth_t *imp_sth));
int dbd_db_ping (SV *dbh);
char* ib_error_decode(const ISC_STATUS *status);
int ib_error_check(SV *h, ISC_STATUS *status);
int ib_start_transaction (SV *h, imp_dbh_t *imp_dbh);
int ib_commit_transaction (SV *h, imp_dbh_t *imp_dbh);
int ib_rollback_transaction(SV *h, imp_dbh_t *imp_dbh);
long ib_rows(SV *xxh, isc_stmt_handle *h_stmt, char count_type);
void ib_cleanup_st_prepare (imp_sth_t *imp_sth);
SV* dbd_db_quote(SV* dbh, SV* str, SV* type);
/* end */