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Commit6df395f

Browse files
author
Hiroshi Inoue
committed
1) Add rollback functionality to updatable cursors.
2) Implement some options for SQLGetDescField().3) Handle *Inifinity* timestamp for SQL_C_CHAR type output.4) Separate Unicode conversions from common implementations.5) Improve internal parse_statement() function.
1 parent87b0808 commit6df395f

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17 files changed

+447
-134
lines changed

17 files changed

+447
-134
lines changed

‎src/interfaces/odbc/bind.c

Lines changed: 6 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -67,8 +67,8 @@ PGAPI_BindParameter(
6767
opts->parameters[ipar].paramType=fParamType;
6868
opts->parameters[ipar].CType=fCType;
6969
opts->parameters[ipar].SQLType=fSqlType;
70-
opts->parameters[ipar].precision=cbColDef;
71-
opts->parameters[ipar].scale=ibScale;
70+
opts->parameters[ipar].column_size=cbColDef;
71+
opts->parameters[ipar].decimal_digits=ibScale;
7272

7373
/*
7474
* If rebinding a parameter that had data-at-exec stuff in it, then
@@ -276,10 +276,10 @@ PGAPI_DescribeParam(
276276
*pfSqlType=opts->parameters[ipar].SQLType;
277277

278278
if (pcbColDef)
279-
*pcbColDef=opts->parameters[ipar].precision;
279+
*pcbColDef=opts->parameters[ipar].column_size;
280280

281281
if (pibScale)
282-
*pibScale=opts->parameters[ipar].scale;
282+
*pibScale=opts->parameters[ipar].decimal_digits;
283283

284284
if (pfNullable)
285285
*pfNullable=pgtype_nullable(stmt,opts->parameters[ipar].paramType);
@@ -458,8 +458,8 @@ reset_a_parameter_binding(APDFields *self, int ipar)
458458
self->parameters[ipar].EXEC_buffer=NULL;
459459
}
460460
self->parameters[ipar].SQLType=0;
461-
self->parameters[ipar].precision=0;
462-
self->parameters[ipar].scale=0;
461+
self->parameters[ipar].column_size=0;
462+
self->parameters[ipar].decimal_digits=0;
463463
self->parameters[ipar].data_at_exec= FALSE;
464464
self->parameters[ipar].lobj_oid=0;
465465
}

‎src/interfaces/odbc/bind.h

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -40,8 +40,8 @@ struct ParameterInfoClass_
4040
Int2paramType;
4141
Int2CType;
4242
Int2SQLType;
43-
UInt4precision;
44-
Int2scale;
43+
UInt4column_size;
44+
Int2decimal_digits;
4545
Oidlobj_oid;
4646
Int4*EXEC_used;/* amount of data OR the oid of the large
4747
* object */

‎src/interfaces/odbc/connection.c

Lines changed: 15 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -288,6 +288,7 @@ CC_Constructor()
288288
rv->pg_version_minor=0;
289289
rv->ms_jet=0;
290290
rv->unicode=0;
291+
rv->result_uncommitted=0;
291292
#ifdefMULTIBYTE
292293
rv->client_encoding=NULL;
293294
rv->server_encoding=NULL;
@@ -1110,21 +1111,30 @@ CC_get_error(ConnectionClass *self, int *number, char **message)
11101111
}
11111112

11121113

1113-
voidCC_on_commit(ConnectionClass*conn,BOOLset_no_trans)
1114+
voidCC_on_commit(ConnectionClass*conn)
11141115
{
11151116
if (CC_is_in_trans(conn))
11161117
{
1117-
if (set_no_trans)
1118-
CC_set_no_trans(conn);
1118+
#ifdefDRIVER_CURSOR_IMPLEMENT
1119+
if (conn->result_uncommitted)
1120+
ProcessRollback(conn, FALSE);
1121+
#endif/* DRIVER_CURSOR_IMPLEMENT */
1122+
CC_set_no_trans(conn);
11191123
}
1124+
conn->result_uncommitted=0;
11201125
}
11211126
voidCC_on_abort(ConnectionClass*conn,BOOLset_no_trans)
11221127
{
11231128
if (CC_is_in_trans(conn))
11241129
{
1130+
#ifdefDRIVER_CURSOR_IMPLEMENT
1131+
if (conn->result_uncommitted)
1132+
ProcessRollback(conn, TRUE);
1133+
#endif/* DRIVER_CURSOR_IMPLEMENT */
11251134
if (set_no_trans)
11261135
CC_set_no_trans(conn);
11271136
}
1137+
conn->result_uncommitted=0;
11281138
}
11291139

11301140
/*
@@ -1293,11 +1303,11 @@ CC_send_query(ConnectionClass *self, char *query, QueryInfo *qi, UDWORD flag)
12931303
}
12941304
}
12951305
elseif (strnicmp(cmdbuffer,"COMMIT",6)==0)
1296-
CC_on_commit(self, TRUE);
1306+
CC_on_commit(self);
12971307
elseif (strnicmp(cmdbuffer,"ROLLBACK",8)==0)
12981308
CC_on_abort(self, TRUE);
12991309
elseif (strnicmp(cmdbuffer,"END",3)==0)
1300-
CC_on_commit(self, TRUE);
1310+
CC_on_commit(self);
13011311
elseif (strnicmp(cmdbuffer,"ABORT",5)==0)
13021312
CC_on_abort(self, TRUE);
13031313

‎src/interfaces/odbc/connection.h

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -272,6 +272,7 @@ struct ConnectionClass_
272272
Int2pg_version_minor;
273273
charms_jet;
274274
charunicode;
275+
charresult_uncommitted;
275276
#ifdefMULTIBYTE
276277
char*client_encoding;
277278
char*server_encoding;
@@ -318,8 +319,9 @@ voidCC_lookup_pg_version(ConnectionClass *conn);
318319
voidCC_initialize_pg_version(ConnectionClass*conn);
319320
voidCC_log_error(constchar*func,constchar*desc,constConnectionClass*self);
320321
intCC_get_max_query_len(constConnectionClass*self);
321-
voidCC_on_commit(ConnectionClass*conn,BOOLset_no_trans);
322+
voidCC_on_commit(ConnectionClass*conn);
322323
voidCC_on_abort(ConnectionClass*conn,BOOLset_no_trans);
324+
voidProcessRollback(ConnectionClass*conn,BOOLundo);
323325

324326
/* CC_send_query_options */
325327
#defineCLEAR_RESULT_ON_ABORT1L

‎src/interfaces/odbc/convert.c

Lines changed: 32 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -265,6 +265,16 @@ stime2timestamp(const SIMPLE_TIME *st, char *str, BOOL bZone, BOOL precision)
265265
inti;
266266

267267
precstr[0]='\0';
268+
if (st->infinity>0)
269+
{
270+
strcpy(str,"Infinity");
271+
return TRUE;
272+
}
273+
elseif (st->infinity<0)
274+
{
275+
strcpy(str,"-Infinity");
276+
return TRUE;
277+
}
268278
if (precision&&st->fr)
269279
{
270280
sprintf(precstr,".%09d",st->fr);
@@ -447,6 +457,27 @@ copy_and_convert_field(StatementClass *stmt, Int4 field_type, void *value, Int2
447457
casePG_TYPE_DATETIME:
448458
casePG_TYPE_TIMESTAMP:
449459
st.fr=0;
460+
st.infinity=0;
461+
if (strnicmp(value,"infinity",8)==0)
462+
{
463+
st.infinity=1;
464+
st.m=12;
465+
st.d=31;
466+
st.y=9999;
467+
st.hh=24;
468+
st.mm=0;
469+
st.ss=0;
470+
}
471+
if (strnicmp(value,"-infinity",9)==0)
472+
{
473+
st.infinity=-1;
474+
st.m=0;
475+
st.d=0;
476+
st.y=0;
477+
st.hh=0;
478+
st.mm=0;
479+
st.ss=0;
480+
}
450481
if (strnicmp(value,"invalid",7)!=0)
451482
{
452483
BOOLbZone= (field_type!=PG_TYPE_TIMESTAMP_NO_TMZONE&&PG_VERSION_GE(SC_get_conn(stmt),7.2));
@@ -2495,7 +2526,7 @@ convert_money(const char *s, char *sout, size_t soutmax)
24952526
*It does not zero out SIMPLE_TIME in case it is desired to initialize it with a value
24962527
*/
24972528
char
2498-
parse_datetime(char*buf,SIMPLE_TIME*st)
2529+
parse_datetime(constchar*buf,SIMPLE_TIME*st)
24992530
{
25002531
inty,
25012532
m,

‎src/interfaces/odbc/convert.h

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -25,6 +25,7 @@
2525

2626
typedefstruct
2727
{
28+
intinfinity;
2829
intm;
2930
intd;
3031
inty;
@@ -42,7 +43,7 @@ intcopy_statement_with_parameters(StatementClass *stmt);
4243
intconvert_escape(constchar*value,StatementClass*stmt,
4344
int*npos,int*stsize,constchar**val_resume);
4445
BOOLconvert_money(constchar*s,char*sout,size_tsoutmax);
45-
charparse_datetime(char*buf,SIMPLE_TIME*st);
46+
charparse_datetime(constchar*buf,SIMPLE_TIME*st);
4647
intconvert_linefeeds(constchar*s,char*dst,size_tmax,BOOLconvlf,BOOL*changed);
4748
intconvert_special_chars(constchar*si,char*dst,intused,BOOLconvlf,intccsc);
4849

‎src/interfaces/odbc/descriptor.h

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@
55
*
66
* Comments:See "notice.txt" for copyright and license information.
77
*
8-
* $Id: descriptor.h,v 1.1 2002/03/28 08:08:02 inoue Exp $
8+
* $Id: descriptor.h,v 1.2 2002/04/01 03:01:14 inoue Exp $
99
*
1010
*/
1111

@@ -92,5 +92,8 @@ voidIRDFields_free(IRDFields *self);
9292
voidIPDFields_free(IPDFields*self);
9393
voidARD_unbind_cols(ARDFields*self,BOOLfreeall);
9494
voidAPD_free_params(APDFields*self,charoption);
95+
#if (ODBCVER >=0x0300)
96+
voidDesc_set_error(SQLHDESChdesc,interrornumber,constchar*errormsg);
97+
#endif/* ODBCVER */
9598

9699
#endif

‎src/interfaces/odbc/odbcapi30.c

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -235,7 +235,8 @@ SQLGetDiagField(SQLSMALLINT HandleType, SQLHANDLE Handle,
235235
SQLSMALLINT*StringLength)
236236
{
237237
mylog("[[SQLGetDiagField]] Handle=(%u,%x) Rec=%d Id=%d\n",HandleType,Handle,RecNumber,DiagIdentifier);
238-
returnSQL_ERROR;
238+
returnPGAPI_GetDiagField(HandleType,Handle,RecNumber,DiagIdentifier,
239+
DiagInfo,BufferLength,StringLength);
239240
}
240241

241242
/*SQLError -> SQLDiagRec */

‎src/interfaces/odbc/odbcapi30w.c

Lines changed: 88 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -89,10 +89,25 @@ SQLSetDescFieldW(SQLHDESC DescriptorHandle, SQLSMALLINT RecNumber,
8989
mylog("[SQLSetDescFieldW]");
9090
if (BufferLength>0)
9191
{
92-
uval=ucs2_to_utf8(Value,BufferLength /2,&vallen);
93-
val_alloced= TRUE;
92+
switch (FieldIdentifier)
93+
{
94+
caseSQL_DESC_BASE_COLUMN_NAME:
95+
caseSQL_DESC_BASE_TABLE_NAME:
96+
caseSQL_DESC_CATALOG_NAME:
97+
caseSQL_DESC_LABEL:
98+
caseSQL_DESC_LITERAL_PREFIX:
99+
caseSQL_DESC_LITERAL_SUFFIX:
100+
caseSQL_DESC_LOCAL_TYPE_NAME:
101+
caseSQL_DESC_NAME:
102+
caseSQL_DESC_SCHEMA_NAME:
103+
caseSQL_DESC_TABLE_NAME:
104+
caseSQL_DESC_TYPE_NAME:
105+
uval=ucs2_to_utf8(Value,BufferLength /2,&vallen);
106+
val_alloced= TRUE;
107+
break;
108+
}
94109
}
95-
else
110+
if (!val_alloced)
96111
{
97112
uval=Value;
98113
vallen=BufferLength;
@@ -109,11 +124,49 @@ SQLGetDescFieldW(SQLHDESC hdesc, SQLSMALLINT iRecord, SQLSMALLINT iField,
109124
SQLINTEGER*pcbValue)
110125
{
111126
RETCODEret;
112-
char*qstr=NULL,*mtxt=NULL;
127+
BOOLalloced= FALSE;
128+
SQLINTEGERblen,bMax,*pcbV;
129+
char*rgbV=NULL;
113130

114131
mylog("[SQLGetDescFieldW]");
115-
ret=PGAPI_GetDescField(hdesc,iRecord,iField,rgbValue,
116-
cbValueMax,pcbValue);
132+
switch (iField)
133+
{
134+
caseSQL_DESC_BASE_COLUMN_NAME:
135+
caseSQL_DESC_BASE_TABLE_NAME:
136+
caseSQL_DESC_CATALOG_NAME:
137+
caseSQL_DESC_LABEL:
138+
caseSQL_DESC_LITERAL_PREFIX:
139+
caseSQL_DESC_LITERAL_SUFFIX:
140+
caseSQL_DESC_LOCAL_TYPE_NAME:
141+
caseSQL_DESC_NAME:
142+
caseSQL_DESC_SCHEMA_NAME:
143+
caseSQL_DESC_TABLE_NAME:
144+
caseSQL_DESC_TYPE_NAME:
145+
alloced= TRUE;
146+
bMax=cbValueMax*3 /2;
147+
rgbV=malloc(bMax+1);
148+
pcbV=&blen;
149+
break;
150+
default:
151+
rgbV=rgbValue;
152+
bMax=cbValueMax;
153+
pcbV=pcbValue;
154+
break;
155+
}
156+
ret=PGAPI_GetDescField(hdesc,iRecord,iField,rgbV,bMax,pcbV);
157+
if (alloced)
158+
{
159+
blen=utf8_to_ucs2(rgbV,blen, (SQLWCHAR*)rgbValue,cbValueMax /2);
160+
if (SQL_SUCCESS==ret&&blen*2>cbValueMax)
161+
{
162+
ret=SQL_SUCCESS_WITH_INFO;
163+
Desc_set_error(hdesc,STMT_TRUNCATED,"The buffer was too small for the rgbDesc.");
164+
}
165+
if (pcbValue)
166+
*pcbValue=blen*2;
167+
free(rgbV);
168+
}
169+
117170
returnret;
118171
}
119172

@@ -171,6 +224,9 @@ RETCODE SQL_API SQLColAttributeW(
171224
SQLINTEGER*pfDesc)
172225
{
173226
RETCODEret;
227+
BOOLalloced= FALSE;
228+
SQLSMALLINT*rgbL,blen,bMax;
229+
char*rgbD=NULL;
174230

175231
mylog("[SQLColAttributeW]");
176232
switch (fDescType)
@@ -187,11 +243,35 @@ RETCODE SQL_API SQLColAttributeW(
187243
caseSQL_DESC_TABLE_NAME:
188244
caseSQL_DESC_TYPE_NAME:
189245
caseSQL_COLUMN_NAME:
246+
alloced= TRUE;
247+
bMax=cbDescMax*3 /2;
248+
rgbD=malloc(bMax+1);
249+
rgbL=&blen;
190250
break;
251+
default:
252+
rgbD=rgbDesc;
253+
bMax=cbDescMax;
254+
rgbL=pcbDesc;
255+
break;
191256
}
192257

193-
ret=PGAPI_ColAttributes(hstmt,icol,fDescType,rgbDesc,
194-
cbDescMax,pcbDesc,pfDesc);
258+
ret=PGAPI_ColAttributes(hstmt,icol,fDescType,rgbD,
259+
bMax,rgbL,pfDesc);
260+
if (alloced)
261+
{
262+
blen=utf8_to_ucs2(rgbD,blen, (SQLWCHAR*)rgbDesc,cbDescMax /2);
263+
if (SQL_SUCCESS==ret&&blen*2>cbDescMax)
264+
{
265+
StatementClass*stmt= (StatementClass*)hstmt;
266+
267+
ret=SQL_SUCCESS_WITH_INFO;
268+
stmt->errornumber=STMT_TRUNCATED;
269+
stmt->errormsg="The buffer was too small for the rgbDesc.";
270+
}
271+
if (pcbDesc)
272+
*pcbDesc=blen*2;
273+
free(rgbD);
274+
}
195275

196276
returnret;
197277
}

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