#define PERL_NO_GET_CONTEXT
#define NEED_newSVpvn_flags
#define NEED_sv_2pvbyte
#include "SQLiteXS.h"
DBISTATE_DECLARE;
#define SvPV_nolen_undef_ok(x) (SvOK(x) ? SvPV_nolen(x) : "undef")
/*-----------------------------------------------------*
* Debug Macros
*-----------------------------------------------------*/
#undef DBD_SQLITE_CROAK_DEBUG
#ifdef DBD_SQLITE_CROAK_DEBUG
#define croak_if_db_is_null() if (!imp_dbh->db) croak("imp_dbh->db is NULL at line %d in %s", __LINE__, __FILE__)
#define croak_if_stmt_is_null() if (!imp_sth->stmt) croak("imp_sth->stmt is NULL at line %d in %s", __LINE__, __FILE__)
#else
#define croak_if_db_is_null()
#define croak_if_stmt_is_null()
#endif
/*-----------------------------------------------------*
* Globals
*-----------------------------------------------------*/
imp_dbh_t *last_executed_dbh; /* needed by perl_tokenizer
to know if unicode is on/off */
/*-----------------------------------------------------*
* Helper Methods
*-----------------------------------------------------*/
#define sqlite_error(h,rc,what) _sqlite_error(aTHX_ __FILE__, __LINE__, h, rc, what)
#define sqlite_trace(h,xxh,level,what) if ( DBIc_TRACE_LEVEL((imp_xxh_t*)xxh) >= level ) _sqlite_trace(aTHX_ __FILE__, __LINE__, h, (imp_xxh_t*)xxh, what)
#define sqlite_exec(h,sql) _sqlite_exec(aTHX_ h, imp_dbh->db, sql)
#define sqlite_open(dbname,db) _sqlite_open(aTHX_ dbh, dbname, db)
static void
_sqlite_trace(pTHX_ char *file, int line, SV *h, imp_xxh_t *imp_xxh, const char *what)
{
PerlIO_printf(
DBIc_LOGPIO(imp_xxh),
"sqlite trace: %s at %s line %d\n", what, file, line
);
}
static void
_sqlite_error(pTHX_ char *file, int line, SV *h, int rc, const char *what)
{
D_imp_xxh(h);
DBIh_SET_ERR_CHAR(h, imp_xxh, Nullch, rc, what, Nullch, Nullch);
/* #7753: DBD::SQLite error shouldn't include extraneous info */
/* sv_catpvf(errstr, "(%d) at %s line %d", rc, file, line); */
if ( DBIc_TRACE_LEVEL(imp_xxh) >= 3 ) {
PerlIO_printf(
DBIc_LOGPIO(imp_xxh),
"sqlite error %d recorded: %s at %s line %d\n",
rc, what, file, line
);
}
}
int
_sqlite_exec(pTHX_ SV *h, sqlite3 *db, const char *sql)
{
int rc;
char *errmsg;
rc = sqlite3_exec(db, sql, NULL, NULL, &errmsg);
if ( rc != SQLITE_OK ) {
sqlite_error(h, rc, errmsg);
if (errmsg) sqlite3_free(errmsg);
}
return rc;
}
int
_sqlite_open(pTHX_ SV *dbh, const char *dbname, sqlite3 **db)
{
int rc;
rc = sqlite3_open(dbname, db);
if ( rc != SQLITE_OK ) {
sqlite_error(dbh, rc, sqlite3_errmsg(*db));
if (*db) sqlite3_close(*db);
}
return rc;
}
static int
sqlite_type_to_odbc_type(int type)
{
switch(type) {
case SQLITE_INTEGER: return SQL_INTEGER;
case SQLITE_FLOAT: return SQL_DOUBLE;
case SQLITE_TEXT: return SQL_VARCHAR;
case SQLITE_BLOB: return SQL_BLOB;
case SQLITE_NULL: return SQL_UNKNOWN_TYPE;
default: return SQL_UNKNOWN_TYPE;
}
}
static int
sqlite_type_from_odbc_type(int type)
{
switch(type) {
case SQL_INTEGER:
case SQL_SMALLINT:
case SQL_TINYINT:
case SQL_BIGINT:
return SQLITE_INTEGER;
case SQL_FLOAT:
case SQL_REAL:
case SQL_DOUBLE:
return SQLITE_FLOAT;
case SQL_BLOB:
return SQLITE_BLOB;
default:
return SQLITE_TEXT;
}
}
static void
sqlite_set_result(pTHX_ sqlite3_context *context, SV *result, int is_error)
{
STRLEN len;
char *s;
if ( is_error ) {
s = SvPV(result, len);
sqlite3_result_error( context, s, len );
return;
}
/* warn("result: %s\n", SvPV_nolen(result)); */
if ( !SvOK(result) ) {
sqlite3_result_null( context );
} else if( SvIOK_UV(result) ) {
if ((UV)(sqlite3_int64)UV_MAX == UV_MAX)
sqlite3_result_int64( context, (sqlite3_int64)SvUV(result));
else {
s = SvPV(result, len);
sqlite3_result_text( context, s, len, SQLITE_TRANSIENT );
}
}
else if ( SvIOK(result) ) {
#if defined(USE_64_BIT_INT)
sqlite3_result_int64( context, SvIV(result));
#else
sqlite3_result_int( context, SvIV(result));
#endif
} else if ( SvNOK(result) && ( sizeof(NV) == sizeof(double) || SvNVX(result) == (double) SvNVX(result) ) ) {
sqlite3_result_double( context, SvNV(result));
} else {
s = SvPV(result, len);
sqlite3_result_text( context, s, len, SQLITE_TRANSIENT );
}
}
/*
* see also sqlite3IsNumber, sqlite3_int64 type definition,
* applyNumericAffinity, sqlite3Atoi64, etc from sqlite3.c
*/
static int
sqlite_is_number(pTHX_ const char *v, int sql_type)
{
const char *z = v;
const char *d = v;
int neg;
int digit = 0;
int precision = 0;
bool has_plus = FALSE;
bool maybe_int = TRUE;
char format[10];
if (sql_type != SQLITE_NULL) {
while (*z == ' ') { z++; v++; d++; }
}
if (*z == '-') { neg = 1; z++; d++; }
else if (*z == '+') { neg = 0; z++; d++; has_plus = TRUE; }
else { neg = 0; }
if (!isdigit(*z)) return 0;
while (isdigit(*z)) { digit++; z++; }
#if defined(USE_64_BIT_INT)
if (digit > 19) maybe_int = FALSE; /* too large for i64 */
if (digit == 19) {
int c;
char tmp[22];
strncpy(tmp, d, z - d + 1);
c = memcmp(tmp, "922337203685477580", 18);
if (c == 0) {
c = tmp[18] - '7' - neg;
}
if (c > 0) maybe_int = FALSE;
}
#else
if (digit > 10) maybe_int = FALSE; /* too large for i32 */
if (digit == 10) {
int c;
char tmp[14];
strncpy(tmp, d, z - d + 1);
c = memcmp(tmp, "214748364", 9);
if (c == 0) {
c = tmp[9] - '7' - neg;
}
if (c > 0) maybe_int = FALSE;
}
#endif
if (*z == '.') {
maybe_int = FALSE;
z++;
if (!isdigit(*z)) return 0;
while (isdigit(*z)) { precision++; z++; }
}
if (*z == 'e' || *z == 'E') {
maybe_int = FALSE;
z++;
if (*z == '+' || *z == '-') { z++; }
if (!isdigit(*z)) return 0;
while (isdigit(*z)) { z++; }
}
if (*z && !isdigit(*z)) return 0;
if (maybe_int || sql_type == SQLITE_INTEGER) {
#if defined(USE_64_BIT_INT)
#if defined(HAS_ATOLL)
if (strEQ(form((has_plus ? "+%lli" : "%lli"), atoll(v)), v)) return 1;
#else
if (strEQ(form((has_plus ? "+%li" : "%li"), atol(v)), v)) return 1;
#endif
#else
if (strEQ(form((has_plus ? "+%i" : "%i"), atoi(v)), v)) return 1;
#endif
}
if (sql_type != SQLITE_INTEGER) {
sprintf(format, (has_plus ? "+%%.%df" : "%%.%df"), precision);
if (strEQ(form(format, atof(v)), v)) return 2;
}
return 0;
}
/*-----------------------------------------------------*
* DBD Methods
*-----------------------------------------------------*/
void
sqlite_init(dbistate_t *dbistate)
{
dTHX;
DBISTATE_INIT; /* Initialize the DBI macros */
}
int
sqlite_discon_all(SV *drh, imp_drh_t *imp_drh)
{
dTHX;
return FALSE; /* no way to do this */
}
int
sqlite_db_login6(SV *dbh, imp_dbh_t *imp_dbh, char *dbname, char *user, char *pass, SV *attr)
{
dTHX;
int rc;
sqlite_trace(dbh, imp_dbh, 3, form("login '%s' (version %s)", dbname, sqlite3_version));
rc = sqlite_open(dbname, &(imp_dbh->db));
if ( rc != SQLITE_OK ) {
return FALSE; /* -> undef in lib/DBD/SQLite.pm */
}
DBIc_IMPSET_on(imp_dbh);
imp_dbh->unicode = FALSE;
imp_dbh->functions = newAV();
imp_dbh->aggregates = newAV();
imp_dbh->collation_needed_callback = newSVsv( &PL_sv_undef );
imp_dbh->timeout = SQL_TIMEOUT;
imp_dbh->handle_binary_nulls = FALSE;
imp_dbh->allow_multiple_statements = FALSE;
imp_dbh->use_immediate_transaction = TRUE;
imp_dbh->see_if_its_a_number = FALSE;
sqlite3_busy_timeout(imp_dbh->db, SQL_TIMEOUT);
sqlite_exec(dbh, "PRAGMA empty_result_callbacks = ON");
sqlite_exec(dbh, "PRAGMA show_datatypes = ON");
#if 0
/*
** As of 1.26_06 foreign keys support was enabled by default,
** but with further discussion, we agreed to follow what
** sqlite team does, i.e. wait until the team think it
** reasonable to enable the support by default, as they have
** larger users and will allocate enough time for people to
** get used to the foreign keys. However, we should say it loud
** that sometime in the (near?) future, this feature may break
** your applications (and it actually broke applications).
** Let everyone be prepared.
*/
sqlite_exec(dbh, "PRAGMA foreign_keys = ON");
#endif
DBIc_ACTIVE_on(imp_dbh);
return TRUE;
}
int
sqlite_db_commit(SV *dbh, imp_dbh_t *imp_dbh)
{
dTHX;
int rc;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to commit on inactive database handle");
return FALSE;
}
if (DBIc_is(imp_dbh, DBIcf_AutoCommit)) {
/* We don't need to warn, because the DBI layer will do it for us */
return TRUE;
}
if (DBIc_is(imp_dbh, DBIcf_BegunWork)) {
DBIc_off(imp_dbh, DBIcf_BegunWork);
DBIc_on(imp_dbh, DBIcf_AutoCommit);
}
croak_if_db_is_null();
if (!sqlite3_get_autocommit(imp_dbh->db)) {
sqlite_trace(dbh, imp_dbh, 3, "COMMIT TRAN");
rc = sqlite_exec(dbh, "COMMIT TRANSACTION");
if (rc != SQLITE_OK) {
return FALSE; /* -> &sv_no in SQLite.xsi */
}
}
return TRUE;
}
int
sqlite_db_rollback(SV *dbh, imp_dbh_t *imp_dbh)
{
dTHX;
int rc;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to rollback on inactive database handle");
return FALSE;
}
if (DBIc_is(imp_dbh, DBIcf_BegunWork)) {
DBIc_off(imp_dbh, DBIcf_BegunWork);
DBIc_on(imp_dbh, DBIcf_AutoCommit);
}
croak_if_db_is_null();
if (!sqlite3_get_autocommit(imp_dbh->db)) {
sqlite_trace(dbh, imp_dbh, 3, "ROLLBACK TRAN");
rc = sqlite_exec(dbh, "ROLLBACK TRANSACTION");
if (rc != SQLITE_OK) {
return FALSE; /* -> &sv_no in SQLite.xsi */
}
}
return TRUE;
}
int
sqlite_db_disconnect(SV *dbh, imp_dbh_t *imp_dbh)
{
dTHX;
int rc;
sqlite3_stmt *pStmt;
if (DBIc_is(imp_dbh, DBIcf_AutoCommit) == FALSE) {
sqlite_db_rollback(dbh, imp_dbh);
}
DBIc_ACTIVE_off(imp_dbh);
#if 0
/*
** This cause segfaults when we have virtual tables, as sqlite3
** seems to try to finalize the statements for the tables (freed
** here) while closing. So we need to find other ways to do the
** right thing.
*/
/* COMPAT: sqlite3_next_stmt is only available for 3006000 or newer */
while ( (pStmt = sqlite3_next_stmt(imp_dbh->db, 0)) != NULL ) {
sqlite3_finalize(pStmt);
}
#endif
croak_if_db_is_null();
rc = sqlite3_close(imp_dbh->db);
if (rc != SQLITE_OK) {
/*
** Most probably we still have unfinalized statements.
** Let's try to close them.
*/
/* COMPAT: sqlite3_next_stmt is only available for 3006000 or newer */
while ( (pStmt = sqlite3_next_stmt(imp_dbh->db, 0)) != NULL ) {
sqlite3_finalize(pStmt);
}
rc = sqlite3_close(imp_dbh->db);
if (rc != SQLITE_OK) {
/*
** We still have problems. probably a backup operation
** is not finished. We may need to wait for a while if
** we get SQLITE_BUSY...
*/
sqlite_error(dbh, rc, sqlite3_errmsg(imp_dbh->db));
}
}
av_undef(imp_dbh->functions);
SvREFCNT_dec(imp_dbh->functions);
imp_dbh->functions = (AV *)NULL;
av_undef(imp_dbh->aggregates);
SvREFCNT_dec(imp_dbh->aggregates);
imp_dbh->aggregates = (AV *)NULL;
sv_setsv(imp_dbh->collation_needed_callback, &PL_sv_undef);
SvREFCNT_dec(imp_dbh->collation_needed_callback);
imp_dbh->collation_needed_callback = (SV *)NULL;
return TRUE;
}
void
sqlite_db_destroy(SV *dbh, imp_dbh_t *imp_dbh)
{
dTHX;
if (DBIc_ACTIVE(imp_dbh)) {
sqlite_db_disconnect(dbh, imp_dbh);
}
imp_dbh->db = NULL;
DBIc_IMPSET_off(imp_dbh);
}
int
sqlite_db_STORE_attrib(SV *dbh, imp_dbh_t *imp_dbh, SV *keysv, SV *valuesv)
{
dTHX;
char *key = SvPV_nolen(keysv);
int rc;
croak_if_db_is_null();
if (strEQ(key, "AutoCommit")) {
if (SvTRUE(valuesv)) {
/* commit tran? */
if ( DBIc_ACTIVE(imp_dbh) && (!DBIc_is(imp_dbh, DBIcf_AutoCommit)) && (!sqlite3_get_autocommit(imp_dbh->db)) ) {
sqlite_trace(dbh, imp_dbh, 3, "COMMIT TRAN");
rc = sqlite_exec(dbh, "COMMIT TRANSACTION");
if (rc != SQLITE_OK) {
return TRUE; /* XXX: is this correct? */
}
}
}
DBIc_set(imp_dbh, DBIcf_AutoCommit, SvTRUE(valuesv));
return TRUE;
}
if (strEQ(key, "sqlite_allow_multiple_statements")) {
imp_dbh->allow_multiple_statements = !(! SvTRUE(valuesv));
return TRUE;
}
if (strEQ(key, "sqlite_use_immediate_transaction")) {
imp_dbh->use_immediate_transaction = !(! SvTRUE(valuesv));
return TRUE;
}
if (strEQ(key, "sqlite_see_if_its_a_number")) {
imp_dbh->see_if_its_a_number = !(! SvTRUE(valuesv));
return TRUE;
}
if (strEQ(key, "sqlite_unicode")) {
#if PERL_UNICODE_DOES_NOT_WORK_WELL
sqlite_trace(dbh, imp_dbh, 3, form("Unicode support is disabled for this version of perl."));
imp_dbh->unicode = 0;
#else
imp_dbh->unicode = !(! SvTRUE(valuesv));
#endif
return TRUE;
}
if (strEQ(key, "unicode")) {
if (DBIc_has(imp_dbh, DBIcf_WARN))
warn("\"unicode\" attribute will be deprecated. Use \"sqlite_unicode\" instead.");
#if PERL_UNICODE_DOES_NOT_WORK_WELL
sqlite_trace(dbh, imp_dbh, 3, form("Unicode support is disabled for this version of perl."));
imp_dbh->unicode = 0;
#else
imp_dbh->unicode = !(! SvTRUE(valuesv));
#endif
return TRUE;
}
return FALSE;
}
SV *
sqlite_db_FETCH_attrib(SV *dbh, imp_dbh_t *imp_dbh, SV *keysv)
{
dTHX;
char *key = SvPV_nolen(keysv);
if (strEQ(key, "sqlite_version")) {
return sv_2mortal(newSVpv(sqlite3_version, 0));
}
if (strEQ(key, "sqlite_allow_multiple_statements")) {
return sv_2mortal(newSViv(imp_dbh->allow_multiple_statements ? 1 : 0));
}
if (strEQ(key, "sqlite_use_immediate_transaction")) {
return sv_2mortal(newSViv(imp_dbh->use_immediate_transaction ? 1 : 0));
}
if (strEQ(key, "sqlite_see_if_its_a_number")) {
return sv_2mortal(newSViv(imp_dbh->see_if_its_a_number ? 1 : 0));
}
if (strEQ(key, "sqlite_unicode")) {
#if PERL_UNICODE_DOES_NOT_WORK_WELL
sqlite_trace(dbh, imp_dbh, 3, "Unicode support is disabled for this version of perl.");
return sv_2mortal(newSViv(0));
#else
return sv_2mortal(newSViv(imp_dbh->unicode ? 1 : 0));
#endif
}
if (strEQ(key, "unicode")) {
if (DBIc_has(imp_dbh, DBIcf_WARN))
warn("\"unicode\" attribute will be deprecated. Use \"sqlite_unicode\" instead.");
#if PERL_UNICODE_DOES_NOT_WORK_WELL
sqlite_trace(dbh, imp_dbh, 3, "Unicode support is disabled for this version of perl.");
return sv_2mortal(newSViv(0));
#else
return sv_2mortal(newSViv(imp_dbh->unicode ? 1 : 0));
#endif
}
return NULL;
}
SV *
sqlite_db_last_insert_id(SV *dbh, imp_dbh_t *imp_dbh, SV *catalog, SV *schema, SV *table, SV *field, SV *attr)
{
dTHX;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to get last inserted id on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
return sv_2mortal(newSViv((IV)sqlite3_last_insert_rowid(imp_dbh->db)));
}
int
sqlite_st_prepare(SV *sth, imp_sth_t *imp_sth, char *statement, SV *attribs)
{
dTHX;
int rc = 0;
const char *extra;
D_imp_dbh_from_sth;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(sth, -2, "attempt to prepare on inactive database handle");
return FALSE; /* -> undef in lib/DBD/SQLite.pm */
}
#if 0
if (*statement == '\0') {
sqlite_error(sth, -2, "attempt to prepare empty statement");
return FALSE; /* -> undef in lib/DBD/SQLite.pm */
}
#endif
sqlite_trace(sth, imp_sth, 3, form("prepare statement: %s", statement));
imp_sth->nrow = -1;
imp_sth->retval = SQLITE_OK;
imp_sth->params = newAV();
imp_sth->col_types = newAV();
croak_if_db_is_null();
/* COMPAT: sqlite3_prepare_v2 is only available for 3003009 or newer */
rc = sqlite3_prepare_v2(imp_dbh->db, statement, -1, &(imp_sth->stmt), &extra);
if (rc != SQLITE_OK) {
sqlite_error(sth, rc, sqlite3_errmsg(imp_dbh->db));
if (imp_sth->stmt) {
rc = sqlite3_finalize(imp_sth->stmt);
imp_sth->stmt = NULL;
if (rc != SQLITE_OK) {
sqlite_error(sth, rc, sqlite3_errmsg(imp_dbh->db));
}
}
return FALSE; /* -> undef in lib/DBD/SQLite.pm */
}
if (&extra) {
imp_sth->unprepared_statements = extra;
}
else {
imp_sth->unprepared_statements = NULL;
}
DBIc_NUM_PARAMS(imp_sth) = sqlite3_bind_parameter_count(imp_sth->stmt);
DBIc_NUM_FIELDS(imp_sth) = sqlite3_column_count(imp_sth->stmt);
DBIc_IMPSET_on(imp_sth);
return TRUE;
}
int
sqlite_st_rows(SV *sth, imp_sth_t *imp_sth)
{
return imp_sth->nrow;
}
int
sqlite_st_execute(SV *sth, imp_sth_t *imp_sth)
{
dTHX;
D_imp_dbh_from_sth;
int rc = 0;
int num_params = DBIc_NUM_PARAMS(imp_sth);
int i;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(sth, -2, "attempt to execute on inactive database handle");
return -2; /* -> undef in SQLite.xsi */
}
if (!imp_sth->stmt) return 0;
croak_if_db_is_null();
croak_if_stmt_is_null();
last_executed_dbh = imp_dbh;
/* COMPAT: sqlite3_sql is only available for 3006000 or newer */
sqlite_trace(sth, imp_sth, 3, form("executing %s", sqlite3_sql(imp_sth->stmt)));
if (DBIc_ACTIVE(imp_sth)) {
sqlite_trace(sth, imp_sth, 3, "execute still active, reset");
imp_sth->retval = sqlite3_reset(imp_sth->stmt);
if (imp_sth->retval != SQLITE_OK) {
sqlite_error(sth, imp_sth->retval, sqlite3_errmsg(imp_dbh->db));
return -2; /* -> undef in SQLite.xsi */
}
}
for (i = 0; i < num_params; i++) {
SV **pvalue = av_fetch(imp_sth->params, 2*i, 0);
SV **sql_type_sv = av_fetch(imp_sth->params, 2*i+1, 0);
SV *value = pvalue ? *pvalue : &PL_sv_undef;
int sql_type = sqlite_type_from_odbc_type(sql_type_sv ? SvIV(*sql_type_sv) : SQL_UNKNOWN_TYPE);
sqlite_trace(sth, imp_sth, 4, form("bind %d type %d as %s", i, sql_type, SvPV_nolen_undef_ok(value)));
if (!SvOK(value)) {
sqlite_trace(sth, imp_sth, 5, "binding null");
rc = sqlite3_bind_null(imp_sth->stmt, i+1);
}
else if (sql_type == SQLITE_BLOB) {
STRLEN len;
char * data = SvPVbyte(value, len);
rc = sqlite3_bind_blob(imp_sth->stmt, i+1, data, len, SQLITE_TRANSIENT);
}
else {
STRLEN len;
const char *data;
int numtype = 0;
if (imp_dbh->unicode) {
sv_utf8_upgrade(value);
}
data = SvPV(value, len);
/*
* XXX: For backward compatibility, it'd be better to
* accept a value like " 4" as an integer for an integer
* type column (see t/19_bindparam.t), at least when
* we explicitly specify its type. However, we should
* keep spaces when we just guess.
*/
if (imp_dbh->see_if_its_a_number) {
numtype = sqlite_is_number(aTHX_ data, SQLITE_NULL);
}
else if (sql_type == SQLITE_INTEGER || sql_type == SQLITE_FLOAT) {
numtype = sqlite_is_number(aTHX_ data, sql_type);
}
if (numtype == 1) {
#if defined(USE_64_BIT_INT)
#if defined(HAS_ATOLL)
rc = sqlite3_bind_int64(imp_sth->stmt, i+1, atoll(data));
#else
rc = sqlite3_bind_int64(imp_sth->stmt, i+1, atol(data));
#endif
#else
rc = sqlite3_bind_int(imp_sth->stmt, i+1, atoi(data));
#endif
}
else if (numtype == 2 && sql_type != SQLITE_INTEGER) {
rc = sqlite3_bind_double(imp_sth->stmt, i+1, atof(data));
}
else {
if (sql_type == SQLITE_INTEGER || sql_type == SQLITE_FLOAT) {
/*
* die on datatype mismatch did more harm than good
* especially when DBIC heavily depends on this
* explicit type specification
*/
if (DBIc_has(imp_dbh, DBIcf_PrintWarn))
warn(
"datatype mismatch: bind param (%d) %s as %s",
i, SvPV_nolen_undef_ok(value),
(sql_type == SQLITE_INTEGER ? "integer" : "float")
);
}
rc = sqlite3_bind_text(imp_sth->stmt, i+1, data, len, SQLITE_TRANSIENT);
}
}
if (rc != SQLITE_OK) {
sqlite_error(sth, rc, sqlite3_errmsg(imp_dbh->db));
return -4; /* -> undef in SQLite.xsi */
}
}
if (sqlite3_get_autocommit(imp_dbh->db)) {
/* COMPAT: sqlite3_sql is only available for 3006000 or newer */
const char *sql = sqlite3_sql(imp_sth->stmt);
if ((sql[0] == 'B' || sql[0] == 'b') &&
(sql[1] == 'E' || sql[1] == 'e') &&
(sql[2] == 'G' || sql[2] == 'g') &&
(sql[3] == 'I' || sql[3] == 'i') &&
(sql[4] == 'N' || sql[4] == 'n')) {
if (DBIc_is(imp_dbh, DBIcf_AutoCommit)) {
DBIc_on(imp_dbh, DBIcf_BegunWork);
DBIc_off(imp_dbh, DBIcf_AutoCommit);
}
}
else if (!DBIc_is(imp_dbh, DBIcf_AutoCommit)) {
sqlite_trace(sth, imp_sth, 3, "BEGIN TRAN");
if (imp_dbh->use_immediate_transaction) {
rc = sqlite_exec(sth, "BEGIN IMMEDIATE TRANSACTION");
} else {
rc = sqlite_exec(sth, "BEGIN TRANSACTION");
}
if (rc != SQLITE_OK) {
return -2; /* -> undef in SQLite.xsi */
}
}
}
else if (DBIc_is(imp_dbh, DBIcf_BegunWork)) {
/* COMPAT: sqlite3_sql is only available for 3006000 or newer */
const char *sql = sqlite3_sql(imp_sth->stmt);
if (((sql[0] == 'C' || sql[0] == 'c') &&
(sql[1] == 'O' || sql[1] == 'o') &&
(sql[2] == 'M' || sql[2] == 'm') &&
(sql[3] == 'M' || sql[3] == 'm') &&
(sql[4] == 'I' || sql[4] == 'i') &&
(sql[5] == 'T' || sql[5] == 't'))) {
DBIc_off(imp_dbh, DBIcf_BegunWork);
DBIc_on(imp_dbh, DBIcf_AutoCommit);
}
else if (
((sql[0] == 'R' || sql[0] == 'r') &&
(sql[1] == 'O' || sql[1] == 'o') &&
(sql[2] == 'L' || sql[2] == 'l') &&
(sql[3] == 'L' || sql[3] == 'l') &&
(sql[4] == 'B' || sql[4] == 'b') &&
(sql[5] == 'A' || sql[5] == 'a') &&
(sql[6] == 'C' || sql[6] == 'c') &&
(sql[7] == 'K' || sql[7] == 'k'))) {
int l = strlen(sql);
bool is_savepoint = FALSE;
for(i = 8; i < l; i++) {
if (sql[i] == ' ' || sql[i] == '\t') continue;
if (sql[i] == 'T' || sql[i] == 't') {
if ((sql[i+0] == 'T' || sql[i+0] == 't') &&
(sql[i+1] == 'R' || sql[i+1] == 'r') &&
(sql[i+2] == 'A' || sql[i+2] == 'a') &&
(sql[i+3] == 'N' || sql[i+3] == 'n') &&
(sql[i+4] == 'S' || sql[i+4] == 's') &&
(sql[i+5] == 'A' || sql[i+5] == 'a') &&
(sql[i+6] == 'C' || sql[i+6] == 'c') &&
(sql[i+7] == 'T' || sql[i+7] == 't') &&
(sql[i+8] == 'I' || sql[i+8] == 'i') &&
(sql[i+9] == 'O' || sql[i+9] == 'o') &&
(sql[i+10] == 'N' || sql[i+10] == 'n')) {
i += 10; continue;
}
else if (
(sql[i+0] == 'T' || sql[i+0] == 't') &&
(sql[i+1] == 'O' || sql[i+1] == 'o') &&
(sql[i+2] == ' ' || sql[i+2] == '\t')) {
/* rolling back to a savepoint should not
change AutoCommit status */
is_savepoint = TRUE;
}
}
break;
}
if (!is_savepoint) {
DBIc_off(imp_dbh, DBIcf_BegunWork);
DBIc_on(imp_dbh, DBIcf_AutoCommit);
}
}
}
imp_sth->nrow = 0;
sqlite_trace(sth, imp_sth, 3, form("Execute returned %d cols", DBIc_NUM_FIELDS(imp_sth)));
if (DBIc_NUM_FIELDS(imp_sth) == 0) {
while ((imp_sth->retval = sqlite3_step(imp_sth->stmt)) != SQLITE_DONE) {
if (imp_sth->retval == SQLITE_ROW) {
continue;
}
sqlite_error(sth, imp_sth->retval, sqlite3_errmsg(imp_dbh->db));
if (sqlite3_reset(imp_sth->stmt) != SQLITE_OK) {
sqlite_error(sth, imp_sth->retval, sqlite3_errmsg(imp_dbh->db));
}
return -5; /* -> undef in SQLite.xsi */
}
/* warn("Finalize\n"); */
sqlite3_reset(imp_sth->stmt);
imp_sth->nrow = sqlite3_changes(imp_dbh->db);
/* warn("Total changes: %d\n", sqlite3_total_changes(imp_dbh->db)); */
/* warn("Nrow: %d\n", imp_sth->nrow); */
return imp_sth->nrow;
}
imp_sth->retval = sqlite3_step(imp_sth->stmt);
switch (imp_sth->retval) {
case SQLITE_ROW:
case SQLITE_DONE:
DBIc_ACTIVE_on(imp_sth);
sqlite_trace(sth, imp_sth, 5, form("exec ok - %d rows, %d cols", imp_sth->nrow, DBIc_NUM_FIELDS(imp_sth)));
if (DBIc_is(imp_dbh, DBIcf_AutoCommit) && !sqlite3_get_autocommit(imp_dbh->db)) {
DBIc_on(imp_dbh, DBIcf_BegunWork);
DBIc_off(imp_dbh, DBIcf_AutoCommit);
}
return 0; /* -> '0E0' in SQLite.xsi */
default:
sqlite_error(sth, imp_sth->retval, sqlite3_errmsg(imp_dbh->db));
if (sqlite3_reset(imp_sth->stmt) != SQLITE_OK) {
sqlite_error(sth, imp_sth->retval, sqlite3_errmsg(imp_dbh->db));
}
return -6; /* -> undef in SQLite.xsi */
}
}
AV *
sqlite_st_fetch(SV *sth, imp_sth_t *imp_sth)
{
dTHX;
AV *av;
D_imp_dbh_from_sth;
int numFields = DBIc_NUM_FIELDS(imp_sth);
int chopBlanks = DBIc_is(imp_sth, DBIcf_ChopBlanks);
int i;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(sth, -2, "attempt to fetch on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
croak_if_stmt_is_null();
sqlite_trace(sth, imp_sth, 6, form("numFields == %d, nrow == %d", numFields, imp_sth->nrow));
if (!DBIc_ACTIVE(imp_sth)) {
return Nullav;
}
if (imp_sth->retval == SQLITE_DONE) {
sqlite_st_finish(sth, imp_sth);
return Nullav;
}
if (imp_sth->retval != SQLITE_ROW) {
/* error */
sqlite_error(sth, imp_sth->retval, sqlite3_errmsg(imp_dbh->db));
sqlite_st_finish(sth, imp_sth);
return Nullav; /* -> undef in SQLite.xsi */
}
imp_sth->nrow++;
av = DBIc_DBISTATE((imp_xxh_t *)imp_sth)->get_fbav(imp_sth);
for (i = 0; i < numFields; i++) {
int len;
char * val;
int col_type = sqlite3_column_type(imp_sth->stmt, i);
SV **sql_type = av_fetch(imp_sth->col_types, i, 0);
if (sql_type && SvOK(*sql_type)) {
if (SvIV(*sql_type)) {
col_type = sqlite_type_from_odbc_type(SvIV(*sql_type));
}
}
switch(col_type) {
case SQLITE_INTEGER:
sqlite_trace(sth, imp_sth, 5, form("fetch column %d as integer", i));
#if defined(USE_64_BIT_INT)
sv_setiv(AvARRAY(av)[i], sqlite3_column_int64(imp_sth->stmt, i));
#else
val = (char*)sqlite3_column_text(imp_sth->stmt, i);
if (sqlite_is_number(aTHX_ val, SQLITE_NULL) == 1) {
sv_setiv(AvARRAY(av)[i], atoi(val));
} else {
sv_setpv(AvARRAY(av)[i], val);
SvUTF8_off(AvARRAY(av)[i]);
}
#endif
break;
case SQLITE_FLOAT:
/* fetching as float may lose precision info in the perl world */
sqlite_trace(sth, imp_sth, 5, form("fetch column %d as float", i));
sv_setnv(AvARRAY(av)[i], sqlite3_column_double(imp_sth->stmt, i));
break;
case SQLITE_TEXT:
sqlite_trace(sth, imp_sth, 5, form("fetch column %d as text", i));
val = (char*)sqlite3_column_text(imp_sth->stmt, i);
len = sqlite3_column_bytes(imp_sth->stmt, i);
if (chopBlanks) {
while((len > 0) && (val[len-1] == ' ')) {
len--;
}
}
sv_setpvn(AvARRAY(av)[i], val, len);
if (imp_dbh->unicode) {
SvUTF8_on(AvARRAY(av)[i]);
} else {
SvUTF8_off(AvARRAY(av)[i]);
}
break;
case SQLITE_BLOB:
sqlite_trace(sth, imp_sth, 5, form("fetch column %d as blob", i));
len = sqlite3_column_bytes(imp_sth->stmt, i);
sv_setpvn(AvARRAY(av)[i], sqlite3_column_blob(imp_sth->stmt, i), len);
SvUTF8_off(AvARRAY(av)[i]);
break;
default:
sqlite_trace(sth, imp_sth, 5, form("fetch column %d as default", i));
sv_setsv(AvARRAY(av)[i], &PL_sv_undef);
SvUTF8_off(AvARRAY(av)[i]);
break;
}
SvSETMAGIC(AvARRAY(av)[i]);
}
imp_sth->retval = sqlite3_step(imp_sth->stmt);
return av;
}
int
sqlite_st_finish3(SV *sth, imp_sth_t *imp_sth, int is_destroy)
{
dTHX;
D_imp_dbh_from_sth;
croak_if_db_is_null();
croak_if_stmt_is_null();
/* warn("finish statement\n"); */
if (!DBIc_ACTIVE(imp_sth))
return TRUE;
DBIc_ACTIVE_off(imp_sth);
av_clear(imp_sth->col_types);
if (!DBIc_ACTIVE(imp_dbh)) /* no longer connected */
return TRUE;
if (is_destroy) {
return TRUE;
}
if ((imp_sth->retval = sqlite3_reset(imp_sth->stmt)) != SQLITE_OK) {
sqlite_error(sth, imp_sth->retval, sqlite3_errmsg(imp_dbh->db));
return FALSE; /* -> &sv_no (or void) in SQLite.xsi */
}
return TRUE;
}
int
sqlite_st_finish(SV *sth, imp_sth_t *imp_sth)
{
return sqlite_st_finish3(sth, imp_sth, 0);
}
void
sqlite_st_destroy(SV *sth, imp_sth_t *imp_sth)
{
dTHX;
int rc;
D_imp_dbh_from_sth;
DBIc_ACTIVE_off(imp_sth);
if (DBIc_ACTIVE(imp_dbh)) {
if (imp_sth->stmt) {
/* COMPAT: sqlite3_sql is only available for 3006000 or newer */
sqlite_trace(sth, imp_sth, 4, form("destroy statement: %s", sqlite3_sql(imp_sth->stmt)));
croak_if_db_is_null();
croak_if_stmt_is_null();
/* finalize sth when active connection */
rc = sqlite3_finalize(imp_sth->stmt);
imp_sth->stmt = NULL;
if (rc != SQLITE_OK) {
sqlite_error(sth, rc, sqlite3_errmsg(imp_dbh->db));
}
}
}
SvREFCNT_dec((SV*)imp_sth->params);
SvREFCNT_dec((SV*)imp_sth->col_types);
DBIc_IMPSET_off(imp_sth);
}
int
sqlite_st_blob_read(SV *sth, imp_sth_t *imp_sth,
int field, long offset, long len, SV *destrv, long destoffset)
{
return 0;
}
int
sqlite_st_STORE_attrib(SV *sth, imp_sth_t *imp_sth, SV *keysv, SV *valuesv)
{
dTHX;
/* char *key = SvPV_nolen(keysv); */
return FALSE;
}
SV *
sqlite_st_FETCH_attrib(SV *sth, imp_sth_t *imp_sth, SV *keysv)
{
dTHX;
D_imp_dbh_from_sth;
char *key = SvPV_nolen(keysv);
SV *retsv = NULL;
int i,n;
croak_if_db_is_null();
croak_if_stmt_is_null();
if (strEQ(key, "sqlite_unprepared_statements")) {
return sv_2mortal(newSVpv(imp_sth->unprepared_statements, 0));
}
/*
if (!DBIc_ACTIVE(imp_sth)) {
return NULL;
}
*/
/* warn("fetch: %s\n", key); */
i = DBIc_NUM_FIELDS(imp_sth);
if (strEQ(key, "NAME")) {
AV *av = newAV();
/* warn("Fetch NAME fields: %d\n", i); */
av_extend(av, i);
retsv = sv_2mortal(newRV_noinc((SV*)av));
for (n = 0; n < i; n++) {
/* warn("Fetch col name %d\n", n); */
const char *fieldname = sqlite3_column_name(imp_sth->stmt, n);
if (fieldname) {
/* warn("Name [%d]: %s\n", n, fieldname); */
/* char *dot = instr(fieldname, "."); */
/* if (dot) drop table name from field name */
/* fieldname = ++dot; */
SV *sv_fieldname = newSVpv(fieldname, 0);
if (imp_dbh->unicode)
SvUTF8_on(sv_fieldname);
av_store(av, n, sv_fieldname);
}
}
}
else if (strEQ(key, "PRECISION")) {
AV *av = newAV();
retsv = sv_2mortal(newRV_noinc((SV*)av));
}
else if (strEQ(key, "TYPE")) {
AV *av = newAV();
av_extend(av, i);
retsv = sv_2mortal(newRV_noinc((SV*)av));
for (n = 0; n < i; n++) {
const char *fieldtype = sqlite3_column_decltype(imp_sth->stmt, n);
int type = sqlite3_column_type(imp_sth->stmt, n);
/* warn("got type: %d = %s\n", type, fieldtype); */
type = sqlite_type_to_odbc_type(type);
/* av_store(av, n, newSViv(type)); */
if (fieldtype)
av_store(av, n, newSVpv(fieldtype, 0));
else
av_store(av, n, newSVpv("VARCHAR", 0));
}
}
else if (strEQ(key, "NULLABLE")) {
AV *av = newAV();
av_extend(av, i);
retsv = sv_2mortal(newRV_noinc((SV*)av));
#if defined(SQLITE_ENABLE_COLUMN_METADATA)
for (n = 0; n < i; n++) {
const char *database = sqlite3_column_database_name(imp_sth->stmt, n);
const char *tablename = sqlite3_column_table_name(imp_sth->stmt, n);
const char *fieldname = sqlite3_column_name(imp_sth->stmt, n);
const char *datatype, *collseq;
int notnull, primary, autoinc;
int rc = sqlite3_table_column_metadata(imp_dbh->db, database, tablename, fieldname, &datatype, &collseq, ¬null, &primary, &autoinc);
if (rc != SQLITE_OK) {
sqlite_error(sth, rc, sqlite3_errmsg(imp_dbh->db));
av_store(av, n, newSViv(2)); /* SQL_NULLABLE_UNKNOWN */
}
else {
av_store(av, n, newSViv(!notnull));
}
}
#endif
}
else if (strEQ(key, "SCALE")) {
AV *av = newAV();
retsv = sv_2mortal(newRV_noinc((SV*)av));
}
else if (strEQ(key, "NUM_OF_FIELDS")) {
retsv = sv_2mortal(newSViv(i));
}
else if (strEQ(key, "NUM_OF_PARAMS")) {
retsv = sv_2mortal(newSViv(sqlite3_bind_parameter_count(imp_sth->stmt)));
}
return retsv;
}
/* bind parameter
* NB: We store the params instead of bind immediately because
* we might need to re-create the imp_sth->stmt (see top of execute() function)
* and so we can't lose these params
*/
int
sqlite_bind_ph(SV *sth, imp_sth_t *imp_sth,
SV *param, SV *value, IV sql_type, SV *attribs,
int is_inout, IV maxlen)
{
dTHX;
int pos;
croak_if_stmt_is_null();
if (is_inout) {
sqlite_error(sth, -2, "InOut bind params not implemented");
return FALSE; /* -> &sv_no in SQLite.xsi */
}
if (!looks_like_number(param)) {
STRLEN len;
char *paramstring;
paramstring = SvPV(param, len);
if(paramstring[len] == 0 && strlen(paramstring) == len) {
pos = sqlite3_bind_parameter_index(imp_sth->stmt, paramstring);
if (pos == 0) {
sqlite_error(sth, -2, form("Unknown named parameter: %s", paramstring));
return FALSE; /* -> &sv_no in SQLite.xsi */
}
pos = 2 * (pos - 1);
}
else {
sqlite_error(sth, -2, " could not be coerced to a C string");
return FALSE; /* -> &sv_no in SQLite.xsi */
}
}
else {
pos = 2 * (SvIV(param) - 1);
}
sqlite_trace(sth, imp_sth, 3, form("bind into 0x%p: %"IVdf" => %s (%"IVdf") pos %d", imp_sth->params, SvIV(param), SvPV_nolen_undef_ok(value), sql_type, pos));
av_store(imp_sth->params, pos, newSVsv(value));
if (sql_type) {
av_store(imp_sth->params, pos+1, newSViv(sql_type));
}
return TRUE;
}
int
sqlite_bind_col(SV *sth, imp_sth_t *imp_sth, SV *col, SV *ref, IV sql_type, SV *attribs)
{
dTHX;
/* store the type */
av_store(imp_sth->col_types, SvIV(col)-1, newSViv(sql_type));
/* Allow default implementation to continue */
return 1;
}
/*-----------------------------------------------------*
* Driver Private Methods
*-----------------------------------------------------*/
AV *
sqlite_compile_options()
{
dTHX;
int i = 0;
const char *option;
AV *av = newAV();
#if SQLITE_VERSION_NUMBER >= 3006023
#ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS
while((option = sqlite3_compileoption_get(i++))) {
av_push(av, newSVpv(option, 0));
}
#endif
#endif
return (AV*)sv_2mortal((SV*)av);
}
#define _stores_status(op, key) \
if (sqlite3_status(op, &cur, &hi, reset) == SQLITE_OK) { \
anon = newHV(); \
hv_stores(anon, "current", newSViv(cur)); \
hv_stores(anon, "highwater", newSViv(hi)); \
hv_stores(hv, key, newRV_noinc((SV*)anon)); \
}
#define _stores_dbstatus(op, key) \
if (sqlite3_db_status(imp_dbh->db, op, &cur, &hi, reset) == SQLITE_OK) { \
anon = newHV(); \
hv_stores(anon, "current", newSViv(cur)); \
hv_stores(anon, "highwater", newSViv(hi)); \
hv_stores(hv, key, newRV_noinc((SV*)anon)); \
}
#define _stores_ststatus(op, key) \
hv_stores(hv, key, newSViv(sqlite3_stmt_status(imp_sth->stmt, op, reset)))
HV *
_sqlite_status(int reset)
{
dTHX;
int cur, hi;
HV *hv = newHV();
HV *anon;
_stores_status(SQLITE_STATUS_MEMORY_USED, "memory_used");
_stores_status(SQLITE_STATUS_PAGECACHE_USED, "pagecache_used");
_stores_status(SQLITE_STATUS_PAGECACHE_OVERFLOW, "pagecache_overflow");
_stores_status(SQLITE_STATUS_SCRATCH_USED, "scratch_used");
_stores_status(SQLITE_STATUS_SCRATCH_OVERFLOW, "scratch_overflow");
_stores_status(SQLITE_STATUS_MALLOC_SIZE, "malloc_size");
_stores_status(SQLITE_STATUS_PARSER_STACK, "parser_stack");
_stores_status(SQLITE_STATUS_PAGECACHE_SIZE, "pagecache_size");
_stores_status(SQLITE_STATUS_SCRATCH_SIZE, "scratch_size");
_stores_status(SQLITE_STATUS_MALLOC_COUNT, "malloc_count");
_stores_status(SQLITE_STATUS_SCRATCH_OVERFLOW, "scratch_overflow");
return hv;
}
HV *
_sqlite_db_status(pTHX_ SV* dbh, int reset)
{
D_imp_dbh(dbh);
int cur, hi;
HV *hv = newHV();
HV *anon;
_stores_dbstatus(SQLITE_DBSTATUS_LOOKASIDE_USED, "lookaside_used");
_stores_dbstatus(SQLITE_DBSTATUS_CACHE_USED, "cache_used");
_stores_dbstatus(SQLITE_DBSTATUS_SCHEMA_USED, "schema_used");
_stores_dbstatus(SQLITE_DBSTATUS_STMT_USED, "stmt_used");
_stores_dbstatus(SQLITE_DBSTATUS_LOOKASIDE_HIT, "lookaside_hit");
_stores_dbstatus(SQLITE_DBSTATUS_LOOKASIDE_MISS_SIZE, "lookaside_miss_size");
_stores_dbstatus(SQLITE_DBSTATUS_LOOKASIDE_MISS_FULL, "lookaside_miss_full");
_stores_dbstatus(SQLITE_DBSTATUS_CACHE_HIT, "cache_hit");
_stores_dbstatus(SQLITE_DBSTATUS_CACHE_MISS, "cache_miss");
_stores_dbstatus(SQLITE_DBSTATUS_CACHE_WRITE, "cache_write");
return hv;
}
HV *
_sqlite_st_status(pTHX_ SV* sth, int reset)
{
D_imp_sth(sth);
HV *hv = newHV();
_stores_ststatus(SQLITE_STMTSTATUS_FULLSCAN_STEP, "fullscan_step");
_stores_ststatus(SQLITE_STMTSTATUS_SORT, "sort");
_stores_ststatus(SQLITE_STMTSTATUS_AUTOINDEX, "autoindex");
return hv;
}
SV *
sqlite_db_filename(pTHX_ SV *dbh)
{
D_imp_dbh(dbh);
const char *filename;
croak_if_db_is_null();
filename = sqlite3_db_filename(imp_dbh->db, "main");
return filename ? newSVpv(filename, 0) : &PL_sv_undef;
}
int
sqlite_db_busy_timeout(pTHX_ SV *dbh, int timeout )
{
D_imp_dbh(dbh);
croak_if_db_is_null();
if (timeout) {
imp_dbh->timeout = timeout;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to set busy timeout on inactive database handle");
return -2;
}
sqlite3_busy_timeout(imp_dbh->db, timeout);
}
return imp_dbh->timeout;
}
static void
sqlite_db_func_dispatcher(int is_unicode, sqlite3_context *context, int argc, sqlite3_value **value)
{
dTHX;
dSP;
int count;
int i;
SV *func;
func = sqlite3_user_data(context);
ENTER;
SAVETMPS;
PUSHMARK(SP);
for ( i=0; i < argc; i++ ) {
SV *arg;
STRLEN len;
int type = sqlite3_value_type(value[i]);
sqlite_int64 iv;
/* warn("func dispatch type: %d, value: %s\n", type, sqlite3_value_text(value[i])); */
switch(type) {
case SQLITE_INTEGER:
iv = sqlite3_value_int64(value[i]);
if ( iv >= IV_MIN && iv <= IV_MAX ) {
/* ^^^ compile-time constant (= true) when IV == int64 */
arg = sv_2mortal(newSViv((IV)iv));
}
else if ( iv >= 0 && iv <= UV_MAX ) {
/* warn("integer overflow, cast to UV"); */
arg = sv_2mortal(newSVuv((UV)iv));
}
else {
/* warn("integer overflow, cast to NV"); */
arg = sv_2mortal(newSVnv((NV)iv));
}
break;
case SQLITE_FLOAT:
arg = sv_2mortal(newSVnv(sqlite3_value_double(value[i])));
break;
case SQLITE_TEXT:
len = sqlite3_value_bytes(value[i]);
arg = newSVpvn((const char *)sqlite3_value_text(value[i]), len);
if (is_unicode) {
SvUTF8_on(arg);
}
arg = sv_2mortal(arg);
break;
case SQLITE_BLOB:
len = sqlite3_value_bytes(value[i]);
arg = sv_2mortal(newSVpvn(sqlite3_value_blob(value[i]), len));
break;
default:
arg = &PL_sv_undef;
}
XPUSHs(arg);
}
PUTBACK;
count = call_sv(func, G_SCALAR|G_EVAL);
SPAGAIN;
/* Check for an error */
if (SvTRUE(ERRSV) ) {
sqlite_set_result(aTHX_ context, ERRSV, 1);
POPs;
} else if ( count != 1 ) {
SV *err = sv_2mortal(newSVpvf( "function should return 1 argument, got %d",
count ));
sqlite_set_result(aTHX_ context, err, 1);
/* Clear the stack */
for ( i=0; i < count; i++ ) {
POPs;
}
} else {
sqlite_set_result(aTHX_ context, POPs, 0 );
}
PUTBACK;
FREETMPS;
LEAVE;
}
static void
sqlite_db_func_dispatcher_unicode(sqlite3_context *context, int argc, sqlite3_value **value)
{
sqlite_db_func_dispatcher(1, context, argc, value);
}
static void
sqlite_db_func_dispatcher_no_unicode(sqlite3_context *context, int argc, sqlite3_value **value)
{
sqlite_db_func_dispatcher(0, context, argc, value);
}
int
sqlite_db_create_function(pTHX_ SV *dbh, const char *name, int argc, SV *func)
{
D_imp_dbh(dbh);
int rc;
SV *func_sv;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to create function on inactive database handle");
return FALSE;
}
/* Copy the function reference */
func_sv = newSVsv(func);
av_push( imp_dbh->functions, func_sv );
croak_if_db_is_null();
/* warn("create_function %s with %d args\n", name, argc); */
rc = sqlite3_create_function( imp_dbh->db, name, argc, SQLITE_UTF8,
func_sv,
imp_dbh->unicode ? sqlite_db_func_dispatcher_unicode
: sqlite_db_func_dispatcher_no_unicode,
NULL, NULL );
if ( rc != SQLITE_OK ) {
sqlite_error(dbh, rc, form("sqlite_create_function failed with error %s", sqlite3_errmsg(imp_dbh->db)));
return FALSE;
}
return TRUE;
}
#ifndef SQLITE_OMIT_LOAD_EXTENSION
int
sqlite_db_enable_load_extension(pTHX_ SV *dbh, int onoff)
{
D_imp_dbh(dbh);
int rc;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to enable load extension on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
/* COMPAT: sqlite3_enable_load_extension is only available for 3003006 or newer */
rc = sqlite3_enable_load_extension( imp_dbh->db, onoff );
if ( rc != SQLITE_OK ) {
sqlite_error(dbh, rc, form("sqlite_enable_load_extension failed with error %s", sqlite3_errmsg(imp_dbh->db)));
return FALSE;
}
return TRUE;
}
int
sqlite_db_load_extension(pTHX_ SV *dbh, const char *file, const char *proc)
{
D_imp_dbh(dbh);
int rc;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to load extension on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
/* COMPAT: sqlite3_load_extension is only available for 3003006 or newer */
rc = sqlite3_load_extension( imp_dbh->db, file, proc, NULL );
if ( rc != SQLITE_OK ) {
sqlite_error(dbh, rc, form("sqlite_load_extension failed with error %s", sqlite3_errmsg(imp_dbh->db)));
return FALSE;
}
return TRUE;
}
#endif
HV*
sqlite_db_table_column_metadata(pTHX_ SV *dbh, SV *dbname, SV *tablename, SV *columnname)
{
D_imp_dbh(dbh);
const char *datatype, *collseq;
int notnull, primary, autoinc;
int rc;
HV *metadata = newHV();
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to fetch table column metadata on inactive database handle");
return metadata;
}
croak_if_db_is_null();
/* dbname may be NULL but (table|column)name may not be NULL */
if (!tablename || !SvPOK(tablename)) {
sqlite_error(dbh, -2, "table_column_metadata requires a table name");
return metadata;
}
if (!columnname || !SvPOK(columnname)) {
sqlite_error(dbh, -2, "table_column_metadata requires a column name");
return metadata;
}
#ifdef SQLITE_ENABLE_COLUMN_METADATA
rc = sqlite3_table_column_metadata(
imp_dbh->db,
(dbname && SvPOK(dbname)) ? SvPV_nolen(dbname) : NULL,
SvPV_nolen(tablename),
SvPV_nolen(columnname),
&datatype, &collseq, ¬null, &primary, &autoinc);
#endif
if (rc == SQLITE_OK) {
hv_stores(metadata, "data_type", datatype ? newSVpv(datatype, 0) : newSV(0));
hv_stores(metadata, "collation_name", collseq ? newSVpv(collseq, 0) : newSV(0));
hv_stores(metadata, "not_null", newSViv(notnull));
hv_stores(metadata, "primary", newSViv(primary));
hv_stores(metadata, "auto_increment", newSViv(autoinc));
}
return metadata;
}
static void
sqlite_db_aggr_new_dispatcher(pTHX_ sqlite3_context *context, aggrInfo *aggr_info)
{
dSP;
SV *pkg = NULL;
int count = 0;
aggr_info->err = NULL;
aggr_info->aggr_inst = NULL;
pkg = sqlite3_user_data(context);
if ( !pkg )
return;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVsv(pkg) ) );
PUTBACK;
count = call_method ("new", G_EVAL|G_SCALAR);
SPAGAIN;
aggr_info->inited = 1;
if ( SvTRUE( ERRSV ) ) {
aggr_info->err = newSVpvf("error during aggregator's new(): %s",
SvPV_nolen (ERRSV));
POPs;
} else if ( count != 1 ) {
int i;
aggr_info->err = newSVpvf("new() should return one value, got %d",
count );
/* Clear the stack */
for ( i=0; i < count; i++ ) {
POPs;
}
} else {
SV *aggr = POPs;
if ( SvROK(aggr) ) {
aggr_info->aggr_inst = newSVsv(aggr);
} else{
aggr_info->err = newSVpvf( "new() should return a blessed reference" );
}
}
PUTBACK;
FREETMPS;
LEAVE;
return;
}
static void
sqlite_db_aggr_step_dispatcher(sqlite3_context *context,
int argc, sqlite3_value **value)
{
dTHX;
dSP;
int i;
aggrInfo *aggr;
aggr = sqlite3_aggregate_context(context, sizeof (aggrInfo));
if ( !aggr )
return;
ENTER;
SAVETMPS;
/* initialize on first step */
if ( !aggr->inited ) {
sqlite_db_aggr_new_dispatcher(aTHX_ context, aggr);
}
if ( aggr->err || !aggr->aggr_inst )
goto cleanup;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVsv( aggr->aggr_inst ) ));
for ( i=0; i < argc; i++ ) {
SV *arg;
int len = sqlite3_value_bytes(value[i]);
int type = sqlite3_value_type(value[i]);
switch(type) {
case SQLITE_INTEGER:
arg = sv_2mortal(newSViv(sqlite3_value_int(value[i])));
break;
case SQLITE_FLOAT:
arg = sv_2mortal(newSVnv(sqlite3_value_double(value[i])));
break;
case SQLITE_TEXT:
arg = sv_2mortal(newSVpvn((const char *)sqlite3_value_text(value[i]), len));
break;
case SQLITE_BLOB:
arg = sv_2mortal(newSVpvn(sqlite3_value_blob(value[i]), len));
break;
default:
arg = &PL_sv_undef;
}
XPUSHs(arg);
}
PUTBACK;
call_method ("step", G_SCALAR|G_EVAL|G_DISCARD);
/* Check for an error */
if (SvTRUE(ERRSV) ) {
aggr->err = newSVpvf("error during aggregator's step(): %s",
SvPV_nolen(ERRSV));
POPs;
}
cleanup:
FREETMPS;
LEAVE;
}
static void
sqlite_db_aggr_finalize_dispatcher( sqlite3_context *context )
{
dTHX;
dSP;
aggrInfo *aggr, myAggr;
int count = 0;
aggr = sqlite3_aggregate_context(context, sizeof (aggrInfo));
ENTER;
SAVETMPS;
if ( !aggr ) {
/* SQLite seems to refuse to create a context structure
from finalize() */
aggr = &myAggr;
aggr->aggr_inst = NULL;
aggr->err = NULL;
sqlite_db_aggr_new_dispatcher(aTHX_ context, aggr);
}
if ( ! aggr->err && aggr->aggr_inst ) {
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVsv( aggr->aggr_inst )) );
PUTBACK;
count = call_method( "finalize", G_SCALAR|G_EVAL );
SPAGAIN;
if ( SvTRUE(ERRSV) ) {
aggr->err = newSVpvf("error during aggregator's finalize(): %s",
SvPV_nolen(ERRSV) ) ;
POPs;
} else if ( count != 1 ) {
int i;
aggr->err = newSVpvf("finalize() should return 1 value, got %d",
count );
/* Clear the stack */
for ( i=0; ierr ) {
warn( "DBD::SQLite: error in aggregator cannot be reported to SQLite: %s",
SvPV_nolen( aggr->err ) );
/* sqlite_set_result(aTHX_ context, aggr->err, 1); */
SvREFCNT_dec( aggr->err );
aggr->err = NULL;
}
if ( aggr->aggr_inst ) {
SvREFCNT_dec( aggr->aggr_inst );
aggr->aggr_inst = NULL;
}
FREETMPS;
LEAVE;
}
int
sqlite_db_create_aggregate(pTHX_ SV *dbh, const char *name, int argc, SV *aggr_pkg)
{
D_imp_dbh(dbh);
int rc;
SV *aggr_pkg_copy;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to create aggregate on inactive database handle");
return FALSE;
}
/* Copy the aggregate reference */
aggr_pkg_copy = newSVsv(aggr_pkg);
av_push( imp_dbh->aggregates, aggr_pkg_copy );
croak_if_db_is_null();
rc = sqlite3_create_function( imp_dbh->db, name, argc, SQLITE_UTF8,
aggr_pkg_copy,
NULL,
sqlite_db_aggr_step_dispatcher,
sqlite_db_aggr_finalize_dispatcher
);
if ( rc != SQLITE_OK ) {
sqlite_error(dbh, rc, form("sqlite_create_aggregate failed with error %s", sqlite3_errmsg(imp_dbh->db)));
return FALSE;
}
return TRUE;
}
int
sqlite_db_collation_dispatcher(void *func, int len1, const void *string1,
int len2, const void *string2)
{
dTHX;
dSP;
int cmp = 0;
int n_retval, i;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVpvn( string1, len1) ) );
XPUSHs( sv_2mortal( newSVpvn( string2, len2) ) );
PUTBACK;
n_retval = call_sv(func, G_SCALAR);
SPAGAIN;
if (n_retval != 1) {
warn("collation function returned %d arguments", n_retval);
}
for(i = 0; i < n_retval; i++) {
cmp = POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
return cmp;
}
int
sqlite_db_collation_dispatcher_utf8(void *func, int len1, const void *string1,
int len2, const void *string2)
{
dTHX;
dSP;
int cmp = 0;
int n_retval, i;
SV *sv1, *sv2;
ENTER;
SAVETMPS;
PUSHMARK(SP);
sv1 = newSVpvn(string1, len1);
SvUTF8_on(sv1);
sv2 = newSVpvn(string2, len2);
SvUTF8_on(sv2);
XPUSHs( sv_2mortal( sv1 ) );
XPUSHs( sv_2mortal( sv2 ) );
PUTBACK;
n_retval = call_sv(func, G_SCALAR);
SPAGAIN;
if (n_retval != 1) {
warn("collation function returned %d arguments", n_retval);
}
for(i = 0; i < n_retval; i++) {
cmp = POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
return cmp;
}
int
sqlite_db_create_collation(pTHX_ SV *dbh, const char *name, SV *func)
{
D_imp_dbh(dbh);
int rv, rv2;
void *aa = "aa";
void *zz = "zz";
SV *func_sv = newSVsv(func);
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to create collation on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
/* Check that this is a proper collation function */
rv = sqlite_db_collation_dispatcher(func_sv, 2, aa, 2, aa);
if (rv != 0) {
sqlite_trace(dbh, imp_dbh, 3, form("improper collation function: %s(aa, aa) returns %d!", name, rv));
}
rv = sqlite_db_collation_dispatcher(func_sv, 2, aa, 2, zz);
rv2 = sqlite_db_collation_dispatcher(func_sv, 2, zz, 2, aa);
if (rv2 != (rv * -1)) {
sqlite_trace(dbh, imp_dbh, 3, form("improper collation function: '%s' is not symmetric", name));
}
/* Copy the func reference so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, func_sv );
/* Register the func within sqlite3 */
rv = sqlite3_create_collation(
imp_dbh->db, name, SQLITE_UTF8,
func_sv,
imp_dbh->unicode ? sqlite_db_collation_dispatcher_utf8
: sqlite_db_collation_dispatcher
);
if ( rv != SQLITE_OK ) {
sqlite_error(dbh, rv, form("sqlite_create_collation failed with error %s", sqlite3_errmsg(imp_dbh->db)));
return FALSE;
}
return TRUE;
}
void
sqlite_db_collation_needed_dispatcher(
void *dbh,
sqlite3* db, /* unused */
int eTextRep, /* unused */
const char* collation_name
)
{
dTHX;
dSP;
D_imp_dbh(dbh);
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( dbh );
XPUSHs( sv_2mortal( newSVpv( collation_name, 0) ) );
PUTBACK;
call_sv( imp_dbh->collation_needed_callback, G_VOID );
SPAGAIN;
PUTBACK;
FREETMPS;
LEAVE;
}
void
sqlite_db_collation_needed(pTHX_ SV *dbh, SV *callback)
{
D_imp_dbh(dbh);
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to see if collation is needed on inactive database handle");
return;
}
croak_if_db_is_null();
/* remember the callback within the dbh */
sv_setsv(imp_dbh->collation_needed_callback, callback);
/* Register the func within sqlite3 */
(void) sqlite3_collation_needed( imp_dbh->db,
(void*) (SvOK(callback) ? dbh : NULL),
sqlite_db_collation_needed_dispatcher );
}
int
sqlite_db_generic_callback_dispatcher( void *callback )
{
dTHX;
dSP;
int n_retval, i;
int retval = 0;
ENTER;
SAVETMPS;
PUSHMARK(SP);
n_retval = call_sv( callback, G_SCALAR );
SPAGAIN;
if ( n_retval != 1 ) {
warn( "callback returned %d arguments", n_retval );
}
for(i = 0; i < n_retval; i++) {
retval = POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
return retval;
}
int
sqlite_db_progress_handler(pTHX_ SV *dbh, int n_opcodes, SV *handler)
{
D_imp_dbh(dbh);
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to set progress handler on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
if (!SvOK(handler)) {
/* remove previous handler */
sqlite3_progress_handler( imp_dbh->db, 0, NULL, NULL);
}
else {
SV *handler_sv = newSVsv(handler);
/* Copy the handler ref so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, handler_sv );
/* Register the func within sqlite3 */
sqlite3_progress_handler( imp_dbh->db, n_opcodes,
sqlite_db_generic_callback_dispatcher,
handler_sv );
}
return TRUE;
}
SV*
sqlite_db_commit_hook(pTHX_ SV *dbh, SV *hook)
{
D_imp_dbh(dbh);
void *retval;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to set commit hook on inactive database handle");
return &PL_sv_undef;
}
croak_if_db_is_null();
if (!SvOK(hook)) {
/* remove previous hook */
retval = sqlite3_commit_hook( imp_dbh->db, NULL, NULL );
}
else {
SV *hook_sv = newSVsv( hook );
/* Copy the handler ref so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, hook_sv );
/* Register the hook within sqlite3 */
retval = sqlite3_commit_hook( imp_dbh->db,
sqlite_db_generic_callback_dispatcher,
hook_sv );
}
return retval ? newSVsv(retval) : &PL_sv_undef;
}
SV*
sqlite_db_rollback_hook(pTHX_ SV *dbh, SV *hook)
{
D_imp_dbh(dbh);
void *retval;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to set rollback hook on inactive database handle");
return &PL_sv_undef;
}
croak_if_db_is_null();
if (!SvOK(hook)) {
/* remove previous hook */
retval = sqlite3_rollback_hook( imp_dbh->db, NULL, NULL );
}
else {
SV *hook_sv = newSVsv( hook );
/* Copy the handler ref so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, hook_sv );
/* Register the hook within sqlite3 */
retval = sqlite3_rollback_hook( imp_dbh->db,
(void(*)(void *))
sqlite_db_generic_callback_dispatcher,
hook_sv );
}
return retval ? newSVsv(retval) : &PL_sv_undef;
}
void
sqlite_db_update_dispatcher( void *callback, int op,
char const *database, char const *table,
sqlite3_int64 rowid )
{
dTHX;
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSViv( op ) ) );
XPUSHs( sv_2mortal( newSVpv( database, 0 ) ) );
XPUSHs( sv_2mortal( newSVpv( table, 0 ) ) );
XPUSHs( sv_2mortal( newSViv( (IV)rowid ) ) );
PUTBACK;
call_sv( callback, G_VOID );
SPAGAIN;
PUTBACK;
FREETMPS;
LEAVE;
}
SV*
sqlite_db_update_hook(pTHX_ SV *dbh, SV *hook)
{
D_imp_dbh(dbh);
void *retval;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to set update hook on inactive database handle");
return &PL_sv_undef;
}
croak_if_db_is_null();
if (!SvOK(hook)) {
/* remove previous hook */
retval = sqlite3_update_hook( imp_dbh->db, NULL, NULL );
}
else {
SV *hook_sv = newSVsv( hook );
/* Copy the handler ref so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, hook_sv );
/* Register the hook within sqlite3 */
retval = sqlite3_update_hook( imp_dbh->db,
sqlite_db_update_dispatcher,
hook_sv );
}
return retval ? newSVsv(retval) : &PL_sv_undef;
}
int
sqlite_db_authorizer_dispatcher (
void *authorizer,
int action_code,
const char *details_1,
const char *details_2,
const char *details_3,
const char *details_4
)
{
dTHX;
dSP;
int retval = 0;
int n_retval, i;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal ( newSViv ( action_code ) ) );
/* these ifs are ugly but without them, perl 5.8 segfaults */
XPUSHs( sv_2mortal( details_1 ? newSVpv( details_1, 0 ) : &PL_sv_undef ) );
XPUSHs( sv_2mortal( details_2 ? newSVpv( details_2, 0 ) : &PL_sv_undef ) );
XPUSHs( sv_2mortal( details_3 ? newSVpv( details_3, 0 ) : &PL_sv_undef ) );
XPUSHs( sv_2mortal( details_4 ? newSVpv( details_4, 0 ) : &PL_sv_undef ) );
PUTBACK;
n_retval = call_sv(authorizer, G_SCALAR);
SPAGAIN;
if ( n_retval != 1 ) {
warn( "callback returned %d arguments", n_retval );
}
for(i = 0; i < n_retval; i++) {
retval = POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
return retval;
}
int
sqlite_db_set_authorizer(pTHX_ SV *dbh, SV *authorizer)
{
D_imp_dbh(dbh);
int retval;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to set authorizer on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
if (!SvOK(authorizer)) {
/* remove previous hook */
retval = sqlite3_set_authorizer( imp_dbh->db, NULL, NULL );
}
else {
SV *authorizer_sv = newSVsv( authorizer );
/* Copy the coderef so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, authorizer_sv );
/* Register the hook within sqlite3 */
retval = sqlite3_set_authorizer( imp_dbh->db,
sqlite_db_authorizer_dispatcher,
authorizer_sv );
}
return retval;
}
#ifndef SQLITE_OMIT_TRACE
void
sqlite_db_trace_dispatcher(void *callback, const char *sql)
{
dTHX;
dSP;
int n_retval, i;
int retval = 0;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVpv( sql, 0 ) ) );
PUTBACK;
n_retval = call_sv( callback, G_SCALAR );
SPAGAIN;
if ( n_retval != 1 ) {
warn( "callback returned %d arguments", n_retval );
}
for(i = 0; i < n_retval; i++) {
retval = POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
}
int
sqlite_db_trace(pTHX_ SV *dbh, SV *func)
{
D_imp_dbh(dbh);
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to set trace on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
if (!SvOK(func)) {
/* remove previous callback */
sqlite3_trace( imp_dbh->db, NULL, NULL );
}
else {
SV *func_sv = newSVsv(func);
/* Copy the func ref so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, func_sv );
/* Register the func within sqlite3 */
sqlite3_trace( imp_dbh->db,
sqlite_db_trace_dispatcher,
func_sv );
}
return TRUE;
}
#endif
void
sqlite_db_profile_dispatcher(void *callback, const char *sql, sqlite3_uint64 elapsed)
{
dTHX;
dSP;
int n_retval, i;
int retval = 0;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs( sv_2mortal( newSVpv( sql, 0 ) ) );
/*
* The profile callback time is in units of nanoseconds,
* however the current implementation is only capable of
* millisecond resolution so the six least significant digits
* in the time are meaningless.
* (http://sqlite.org/c3ref/profile.html)
*/
XPUSHs( sv_2mortal( newSViv( elapsed / 1000000 ) ) );
PUTBACK;
n_retval = call_sv( callback, G_SCALAR );
SPAGAIN;
if ( n_retval != 1 ) {
warn( "callback returned %d arguments", n_retval );
}
for(i = 0; i < n_retval; i++) {
retval = POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
}
int
sqlite_db_profile(pTHX_ SV *dbh, SV *func)
{
D_imp_dbh(dbh);
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to profile on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
if (!SvOK(func)) {
/* remove previous callback */
sqlite3_profile( imp_dbh->db, NULL, NULL );
}
else {
SV *func_sv = newSVsv(func);
/* Copy the func ref so that it can be deallocated at disconnect */
av_push( imp_dbh->functions, func_sv );
/* Register the func within sqlite3 */
sqlite3_profile( imp_dbh->db,
sqlite_db_profile_dispatcher,
func_sv );
}
return TRUE;
}
/* Accesses the SQLite Online Backup API, and fills the currently loaded
* database from the passed filename.
* Usual usage of this would be when you're operating on the :memory:
* special database connection and want to copy it in from a real db.
*/
int
sqlite_db_backup_from_file(pTHX_ SV *dbh, char *filename)
{
D_imp_dbh(dbh);
#if SQLITE_VERSION_NUMBER >= 3006011
int rc;
sqlite3 *pFrom;
sqlite3_backup *pBackup;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to backup from file on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
rc = sqlite_open(filename, &pFrom);
if ( rc != SQLITE_OK ) {
return FALSE;
}
/* COMPAT: sqlite3_backup_* are only available for 3006011 or newer */
pBackup = sqlite3_backup_init(imp_dbh->db, "main", pFrom, "main");
if (pBackup) {
(void)sqlite3_backup_step(pBackup, -1);
(void)sqlite3_backup_finish(pBackup);
}
rc = sqlite3_errcode(imp_dbh->db);
(void)sqlite3_close(pFrom);
if ( rc != SQLITE_OK ) {
sqlite_error(dbh, rc, form("sqlite_backup_from_file failed with error %s", sqlite3_errmsg(imp_dbh->db)));
return FALSE;
}
return TRUE;
#else
sqlite_error(dbh, SQLITE_ERROR, form("backup feature requires SQLite 3.6.11 and newer"));
return FALSE;
#endif
}
/* Accesses the SQLite Online Backup API, and copies the currently loaded
* database into the passed filename.
* Usual usage of this would be when you're operating on the :memory:
* special database connection, and want to back it up to an on-disk file.
*/
int
sqlite_db_backup_to_file(pTHX_ SV *dbh, char *filename)
{
D_imp_dbh(dbh);
#if SQLITE_VERSION_NUMBER >= 3006011
int rc;
sqlite3 *pTo;
sqlite3_backup *pBackup;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to backup to file on inactive database handle");
return FALSE;
}
croak_if_db_is_null();
rc = sqlite_open(filename, &pTo);
if ( rc != SQLITE_OK ) {
return FALSE;
}
/* COMPAT: sqlite3_backup_* are only available for 3006011 or newer */
pBackup = sqlite3_backup_init(pTo, "main", imp_dbh->db, "main");
if (pBackup) {
(void)sqlite3_backup_step(pBackup, -1);
(void)sqlite3_backup_finish(pBackup);
}
rc = sqlite3_errcode(pTo);
(void)sqlite3_close(pTo);
if ( rc != SQLITE_OK ) {
sqlite_error(dbh, rc, form("sqlite_backup_to_file failed with error %s", sqlite3_errmsg(imp_dbh->db)));
return FALSE;
}
return TRUE;
#else
sqlite_error(dbh, SQLITE_ERROR, form("backup feature requires SQLite 3.6.11 and newer"));
return FALSE;
#endif
}
typedef struct perl_tokenizer {
sqlite3_tokenizer base;
SV *coderef; /* the perl tokenizer is a coderef that takes
a string and returns a cursor coderef */
} perl_tokenizer;
typedef struct perl_tokenizer_cursor {
sqlite3_tokenizer_cursor base;
SV *coderef; /* ref to the closure that returns terms */
char *pToken; /* storage for a copy of the last token */
int nTokenAllocated; /* space allocated to pToken buffer */
/* members below are only used if the input string is in utf8 */
const char *pInput; /* input we are tokenizing */
const char *lastByteOffset; /* offset into pInput */
int lastCharOffset; /* char offset corresponding to lastByteOffset */
} perl_tokenizer_cursor;
/*
** Create a new tokenizer instance.
** Will be called whenever a FTS3 table is created with
** CREATE .. USING fts3( ... , tokenize=perl qualified::function::name)
** where qualified::function::name is a fully qualified perl function
*/
static int perl_tokenizer_Create(
int argc, const char * const *argv,
sqlite3_tokenizer **ppTokenizer
){
dTHX;
dSP;
int n_retval;
SV *retval;
perl_tokenizer *t;
if (!argc) {
return SQLITE_ERROR;
}
t = (perl_tokenizer *) sqlite3_malloc(sizeof(*t));
if( t==NULL ) return SQLITE_NOMEM;
memset(t, 0, sizeof(*t));
ENTER;
SAVETMPS;
/* call the qualified::function::name */
PUSHMARK(SP);
PUTBACK;
n_retval = call_pv(argv[0], G_SCALAR);
SPAGAIN;
/* store a copy of the returned coderef into the tokenizer structure */
if (n_retval != 1) {
warn("tokenizer_Create returned %d arguments", n_retval);
}
retval = POPs;
t->coderef = newSVsv(retval);
*ppTokenizer = &t->base;
PUTBACK;
FREETMPS;
LEAVE;
return SQLITE_OK;
}
/*
** Destroy a tokenizer
*/
static int perl_tokenizer_Destroy(sqlite3_tokenizer *pTokenizer){
dTHX;
perl_tokenizer *t = (perl_tokenizer *) pTokenizer;
sv_free(t->coderef);
sqlite3_free(t);
return SQLITE_OK;
}
/*
** Prepare to begin tokenizing a particular string. The input
** string to be tokenized is supposed to be pInput[0..nBytes-1] ..
** except that nBytes passed by fts3 is -1 (don't know why) !
** This is passed to the tokenizer instance, which then returns a
** closure implementing the cursor (so the cursor is again a coderef).
*/
static int perl_tokenizer_Open(
sqlite3_tokenizer *pTokenizer, /* Tokenizer object */
const char *pInput, int nBytes, /* Input buffer */
sqlite3_tokenizer_cursor **ppCursor /* OUT: Created tokenizer cursor */
){
dTHX;
dSP;
U32 flags;
SV *perl_string;
int n_retval;
perl_tokenizer *t = (perl_tokenizer *)pTokenizer;
/* allocate and initialize the cursor struct */
perl_tokenizer_cursor *c;
c = (perl_tokenizer_cursor *) sqlite3_malloc(sizeof(*c));
memset(c, 0, sizeof(*c));
*ppCursor = &c->base;
/* flags for creating the Perl SV containing the input string */
flags = SVs_TEMP; /* will call sv_2mortal */
/* special handling if working with utf8 strings */
if (last_executed_dbh->unicode) { /* global var ... no better way ! */
/* data to keep track of byte offsets */
c->lastByteOffset = c->pInput = pInput;
c->lastCharOffset = 0;
/* string passed to Perl needs to be flagged as utf8 */
flags |= SVf_UTF8;
}
ENTER;
SAVETMPS;
/* build a Perl copy of the input string */
if (nBytes < 0) { /* we get -1 from fts3. Don't know why ! */
nBytes = strlen(pInput);
}
perl_string = newSVpvn_flags(pInput, nBytes, flags);
/* call the tokenizer coderef */
PUSHMARK(SP);
XPUSHs(perl_string);
PUTBACK;
n_retval = call_sv(t->coderef, G_SCALAR);
SPAGAIN;
/* store the cursor coderef returned by the tokenizer */
if (n_retval != 1) {
warn("tokenizer returned %d arguments", n_retval);
}
c->coderef = newSVsv(POPs);
PUTBACK;
FREETMPS;
LEAVE;
return SQLITE_OK;
}
/*
** Close a tokenization cursor previously opened by a call to
** perl_tokenizer_Open() above.
*/
static int perl_tokenizer_Close(sqlite3_tokenizer_cursor *pCursor){
perl_tokenizer_cursor *c = (perl_tokenizer_cursor *) pCursor;
dTHX;
sv_free(c->coderef);
if (c->pToken) sqlite3_free(c->pToken);
sqlite3_free(c);
return SQLITE_OK;
}
/*
** Extract the next token from a tokenization cursor. The cursor must
** have been opened by a prior call to perl_tokenizer_Open().
*/
static int perl_tokenizer_Next(
sqlite3_tokenizer_cursor *pCursor, /* Cursor returned by perl_tokenizer_Open */
const char **ppToken, /* OUT: *ppToken is the token text */
int *pnBytes, /* OUT: Number of bytes in token */
int *piStartOffset, /* OUT: Starting offset of token */
int *piEndOffset, /* OUT: Ending offset of token */
int *piPosition /* OUT: Position integer of token */
){
perl_tokenizer_cursor *c = (perl_tokenizer_cursor *) pCursor;
int result;
int n_retval;
STRLEN n_a;
char *token;
char *byteOffset;
I32 hop;
dTHX;
dSP;
ENTER;
SAVETMPS;
/* call the cursor */
PUSHMARK(SP);
PUTBACK;
n_retval = call_sv(c->coderef, G_ARRAY);
SPAGAIN;
/* if we get back an empty list, there is no more token */
if (n_retval == 0) {
result = SQLITE_DONE;
}
/* otherwise, get token details from the return list */
else {
if (n_retval != 5) {
warn("tokenizer cursor returned %d arguments", n_retval);
}
*piPosition = POPi;
*piEndOffset = POPi;
*piStartOffset = POPi;
*pnBytes = POPi;
token = POPpx;
if (c->pInput) { /* if working with utf8 data */
/* recompute *pnBytes in bytes, not in chars */
*pnBytes = strlen(token);
/* recompute start/end offsets in bytes, not in chars */
hop = *piStartOffset - c->lastCharOffset;
byteOffset = utf8_hop((U8*)c->lastByteOffset, hop);
hop = *piEndOffset - *piStartOffset;
*piStartOffset = byteOffset - c->pInput;
byteOffset = utf8_hop(byteOffset, hop);
*piEndOffset = byteOffset - c->pInput;
/* remember where we are for next round */
c->lastCharOffset = *piEndOffset,
c->lastByteOffset = byteOffset;
}
/* make sure we have enough storage for copying the token */
if (*pnBytes > c->nTokenAllocated ){
char *pNew;
c->nTokenAllocated = *pnBytes + 20;
pNew = sqlite3_realloc(c->pToken, c->nTokenAllocated);
if( !pNew ) return SQLITE_NOMEM;
c->pToken = pNew;
}
/* need to copy the token into the C cursor before perl frees that
memory */
memcpy(c->pToken, token, *pnBytes);
*ppToken = c->pToken;
result = SQLITE_OK;
}
PUTBACK;
FREETMPS;
LEAVE;
return result;
}
/*
** The set of routines that implement the perl tokenizer
*/
sqlite3_tokenizer_module perl_tokenizer_Module = {
0,
perl_tokenizer_Create,
perl_tokenizer_Destroy,
perl_tokenizer_Open,
perl_tokenizer_Close,
perl_tokenizer_Next
};
/*
** Register the perl tokenizer with FTS3
*/
int sqlite_db_register_fts3_perl_tokenizer(pTHX_ SV *dbh)
{
D_imp_dbh(dbh);
int rc;
sqlite3_stmt *pStmt;
const char zSql[] = "SELECT fts3_tokenizer(?, ?)";
sqlite3_tokenizer_module *p = &perl_tokenizer_Module;
if (!DBIc_ACTIVE(imp_dbh)) {
sqlite_error(dbh, -2, "attempt to register fts3 tokenizer on inactive database handle");
return FALSE;
}
rc = sqlite3_prepare_v2(imp_dbh->db, zSql, -1, &pStmt, 0);
if( rc!=SQLITE_OK ){
return rc;
}
sqlite3_bind_text(pStmt, 1, "perl", -1, SQLITE_STATIC);
sqlite3_bind_blob(pStmt, 2, &p, sizeof(p), SQLITE_STATIC);
sqlite3_step(pStmt);
return sqlite3_finalize(pStmt);
}
/* end */