![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to parser3oracle.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / sql / oracle|
Return to parser3oracle.C CVS log | Up to [parser3project] / sql / oracle |
1.1 parser 1: /** @file
2: Parser Oracle driver.
3:
1.29 paf 4: Copyright(c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com)
1.1 parser 5:
1.19 paf 6: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1 parser 7:
8: 2001.07.30 using Oracle 8.1.6 [@test tested with Oracle 7.x.x]
9: */
1.54 ! paf 10: static const char *RCSId="$Id: parser3oracle.C,v 1.53 2004/03/04 10:35:53 paf Exp $";
1.1 parser 11:
12: #include "config_includes.h"
13:
14: #include "pa_sql_driver.h"
15:
16: #include <oci.h>
17:
18: #define MAX_COLS 500
19: #define MAX_IN_LOBS 5
20: #define MAX_LOB_NAME_LENGTH 100
21: #define MAX_OUT_STRING_LENGTH 4000
22:
23: #define EMPTY_CLOB_FUNC_CALL "empty_clob()"
24:
25: #include "ltdl.h"
26:
27: #define MAX_STRING 0x400
28: #define MAX_NUMBER 20
29:
30: #if _MSC_VER
31: # define snprintf _snprintf
32: # define strcasecmp _stricmp
33: # define strncasecmp _strnicmp
34: #endif
35:
36: #ifndef max
37: inline int max(int a, int b) { return a>b?a:b; }
38: inline int min(int a, int b){ return a<b?a:b; }
39: #endif
40:
1.45 paf 41: #if _MSC_VER
42: // interaction between '_setjmp' and C++ object destruction is non-portable
43: // but we forced to do that under HPUX
44: #pragma warning(disable:4611)
45: #endif
46:
1.33 paf 47: /// @todo small memory leaks here
1.10 paf 48: static int pa_setenv(const char *name, const char *value, bool do_append) {
49: const char *prev_value=0;
50: if(do_append)
51: prev_value=getenv(name);
1.4 paf 52: #ifdef HAVE_PUTENV
53: // MEM_LEAK_HERE. refer to EOF man putenv
1.10 paf 54: char *buf=(char *)::malloc(strlen(name)
55: +1
56: +(prev_value?strlen(prev_value):0)
57: +strlen(value)
58: +1);
1.4 paf 59: strcpy(buf, name);
60: strcat(buf, "=");
1.10 paf 61: if(prev_value)
62: strcat(buf, prev_value);
1.4 paf 63: strcat(buf, value);
1.5 paf 64: /*
65: if(FILE *f=fopen("f", "at")) {
66: fprintf(f, "****************************%s\n", buf);
67: // for (char **env = environ; env != NULL && *env != NULL; env++)
68: // fputs(*env, f);
69:
70: fclose(f);
71: }
72: */
1.4 paf 73: return putenv(buf);
74: #else
75: //#ifdef HAVE_SETENV
1.10 paf 76: if(value) {
77: if(prev_value) {
78: // MEM_LEAK_HERE
1.33 paf 79: char *buf=(char *)::malloc(strlen(prev_value)
1.10 paf 80: +strlen(value)
81: +1);
82: strcpy(buf, prev_value);
83: strcat(buf, value);
1.24 paf 84: value=buf;
85: }
1.10 paf 86:
1.24 paf 87: return setenv(name, value, 1/*overwrite*/);
1.10 paf 88: } else {
1.4 paf 89: unsetenv(name);
90: return 0;
91: }
92: #endif
93: }
94:
1.1 parser 95: static char *lsplit(char *string, char delim) {
96: if(string) {
97: char *v=strchr(string, delim);
98: if(v) {
99: *v=0;
100: return v+1;
101: }
102: }
103: return 0;
104: }
105:
1.4 paf 106: static char *lsplit(char **string_ref, char delim) {
107: char *result=*string_ref;
108: char *next=lsplit(*string_ref, delim);
109: *string_ref=next;
110: return result;
111: }
112:
1.1 parser 113: #ifndef DOXYGEN
1.49 paf 114: struct Connection {
1.42 paf 115: SQL_Driver_services *services;
116:
1.1 parser 117: jmp_buf mark; char error[MAX_STRING];
1.27 paf 118: SQL_Error sql_error;
1.1 parser 119: OCIEnv *envhp;
120: OCIServer *srvhp;
121: OCIError *errhp;
122: OCISvcCtx *svchp;
123: OCISession *usrhp;
1.39 paf 124:
1.46 paf 125: char* fetch_buffers[MAX_COLS];
126:
1.42 paf 127: struct Options {
128: bool bLowerCaseColumnNames;
129: const char* cstrClientCharset;
130: } options;
1.1 parser 131: };
132:
133: struct OracleSQL_query_lobs {
134: struct return_rows {
135: struct return_row {
136: OCILobLocator *locator; ub4 len;
137: int ind;
138: ub2 rcode;
139: } *row;
140: int count;
141: };
142: struct cbf_context_struct {
1.49 paf 143: Connection *connection;
1.1 parser 144: return_rows *rows;
145: };
146: struct Item {
147: const char *name_ptr; size_t name_size;
148: char *data_ptr; size_t data_size;
149: OCILobLocator *locator;
150: OCIBind *bind;
151: return_rows rows;
152: } items[MAX_IN_LOBS];
153: int count;
154: };
155: #endif
156:
157: // forwards
1.49 paf 158: void check(Connection& connection, const char *step, sword status);
159: void check(Connection& connection, bool error);
1.1 parser 160: static sb4 cbf_no_data(
161: dvoid *ctxp,
162: OCIBind *bindp,
163: ub4 iter, ub4 index,
164: dvoid **bufpp,
165: ub4 *alenpp,
166: ub1 *piecep,
167: dvoid **indpp);
168: static sb4 cbf_get_data(dvoid *ctxp,
169: OCIBind *bindp,
170: ub4 iter, ub4 index,
171: dvoid **bufpp,
172: ub4 **alenp,
173: ub1 *piecep,
174: dvoid **indpp,
175: ub2 **rcodepp);
1.52 paf 176: static void tolower(char *out, const char *in, size_t size);
177: static void toupper(char *out, const char *in, size_t size);
1.1 parser 178:
1.49 paf 179: static const char *options2env(char *s, Connection::Options* options) {
1.42 paf 180: while(s) {
181: if(char *key=lsplit(&s, '&')) {
182: if(*key) {
183: if(char *value=lsplit(key, '=')) {
184: if( strcmp( key, "ClientCharset" ) == 0 ) {
1.44 paf 185: if(options) {
186: toupper(value, value, strlen(value));
1.42 paf 187: options->cstrClientCharset = value;
1.44 paf 188: }
1.42 paf 189: continue;
190: }
191:
192: if( strcmp( key, "LowerCaseColumnNames" ) == 0 ) {
193: if(options)
194: options->bLowerCaseColumnNames = atoi(value)!=0;
195: continue;
196: }
197:
198: bool do_append=key[strlen(key)-1]=='+'; // PATH+=
199: if(do_append)
200: key[strlen(key)-1]=0; // remove trailing +
201: if(strncmp(key, "ORACLE_", 7)==0 // ORACLE_HOME & co
202: || strncmp(key, "ORA_", 4)==0 // ORA_ENCRYPT_LOGIN & co
203: || strncmp(key, "NLS_", 4)==0 // NLS_LANG & co
204: || do_append
205: ) {
206: if(pa_setenv(key, value, do_append)!=0)
207: return "problem changing process environment" /*key*/;
208: } else
209: return "unknown option" /*key*/;
210: } else
211: return "option without =value" /*key*/;
212: }
213: }
214: }
215: return 0;
216: }
217:
1.1 parser 218: /**
219: OracleSQL server driver
220: */
221: class OracleSQL_Driver : public SQL_Driver {
222: public:
223:
224: OracleSQL_Driver() : SQL_Driver() {
225: }
226:
227: /// get api version
228: int api_version() { return SQL_DRIVER_API_VERSION; }
1.6 paf 229: /** initialize driver by loading sql dynamic link library
230: @todo ?objects=1 which would turn on OCI_OBJECT init flag
231: */
1.5 paf 232: const char *initialize(char *dlopen_file_spec) {
233: char *options=lsplit(dlopen_file_spec, '?');
1.1 parser 234:
235: const char *error=dlopen_file_spec?
236: dlink(dlopen_file_spec):"client library column is empty";
237: if(!error) {
1.39 paf 238: error=options2env(options, 0);
1.1 parser 239:
1.5 paf 240: if(!error)
241: OCIInitialize((ub4)OCI_THREADED/*| OCI_OBJECT*/, (dvoid *)0,
242: (dvoid * (*)(void *, unsigned int))0,
243: (dvoid * (*)(void*, void*, unsigned int))0,
244: (void (*)(void*, void*))0
245: );
1.1 parser 246: }
247:
248: return error;
249: }
250:
251: /** connect
252: @param used_only_in_connect_url
1.4 paf 253: format: @b user:pass@service?
254: ORACLE_HOME=/u01/app/oracle/product/8.1.5&
1.5 paf 255: ORA_NLS33=/u01/app/oracle/product/8.1.5/ocommon/nls/admin/data&
1.4 paf 256: NLS_LANG=RUSSIAN_AMERICA.CL8MSWIN1251&
257: ORA_ENCRYPT_LOGIN=TRUE
258:
259: @todo environment manupulation doesnt look thread safe
1.1 parser 260: */
261: void connect(
262: char *used_only_in_connect_url,
263: SQL_Driver_services& services,
1.50 paf 264: void **connection_ref ///< output: Connection *
1.1 parser 265: ) {
1.50 paf 266: Connection& connection=*(Connection *)services.malloc(sizeof(Connection));
1.49 paf 267: connection.services=&services;
268: connection.options.bLowerCaseColumnNames = true;
1.50 paf 269: *connection_ref=&connection;
1.1 parser 270:
271: char *user=used_only_in_connect_url;
272: char *service=lsplit(user, '@');
273: char *pwd=lsplit(user, ':');
1.4 paf 274: char *options=lsplit(service, '?');
1.1 parser 275:
276: if(!(user && pwd && service))
277: services._throw("mailformed connect part, must be 'user:pass@service'");
278:
1.49 paf 279: if(const char *error=options2env(options, &connection.options))
1.5 paf 280: services._throw(error);
1.4 paf 281:
1.49 paf 282: if(setjmp(connection.mark))
283: services._throw(connection.error);
1.1 parser 284:
285: // Allocate and initialize OCIError handle, attempt #1
286: /*
287: grabbed from sample
288: /server.804/a58234/oci_func.htm#446192
289: but doc
290: /server.804/a58234/oci_func.htm#446100
291: doesnt have this param listed as allowed
292: 8.1.6 client library barks as OCI_INVALID_HANDLE
293: and debugging revealed that OCI_HTYPE_ENV param value is invalid
294: later in doc
295: /server.804/a58234/oci_func.htm#446192
296: on OCIEnvInit thay say
297: "No changes are done to an already initialized handle"
298: think, this is some sort of backward compatibility wonder.
299: leaving as it is, and without check()
300: */
1.49 paf 301: OCIHandleAlloc((dvoid *)NULL, (dvoid **) &connection.envhp, (ub4)OCI_HTYPE_ENV, 0, 0);
1.1 parser 302: // Initialize an environment handle, attempt #2
1.49 paf 303: check(connection, "EnvInit", OCIEnvInit(
304: &connection.envhp, (ub4)OCI_DEFAULT, 0, 0));
1.1 parser 305: // Allocate and initialize OCIError handle
1.49 paf 306: check(connection, "HandleAlloc errhp", OCIHandleAlloc(
307: (dvoid *)connection.envhp, (dvoid **) &connection.errhp, (ub4)OCI_HTYPE_ERROR, 0, 0));
1.1 parser 308: // Allocate and initialize OCIServer handle
1.49 paf 309: check(connection, "HandleAlloc srvhp", OCIHandleAlloc(
310: (dvoid *)connection.envhp, (dvoid **) &connection.srvhp, (ub4)OCI_HTYPE_SERVER, 0, 0));
1.1 parser 311: // Attach to a 'service'; initialize server context handle
1.49 paf 312: check(connection, "ServerAttach", OCIServerAttach(
313: connection.srvhp, connection.errhp, (text *)service, (sb4)strlen(service), (ub4)OCI_DEFAULT));
1.1 parser 314: // Allocate and initialize OCISvcCtx handle
1.49 paf 315: check(connection, "HandleAlloc svchp", OCIHandleAlloc(
316: (dvoid *)connection.envhp, (dvoid **) &connection.svchp, (ub4)OCI_HTYPE_SVCCTX, 0, 0));
1.1 parser 317: // set attribute server context in the service context
1.49 paf 318: check(connection, "AttrSet server-service", OCIAttrSet(
319: (dvoid *)connection.svchp, (ub4)OCI_HTYPE_SVCCTX,
320: (dvoid *)connection.srvhp, (ub4)0,
321: (ub4)OCI_ATTR_SERVER, (OCIError *)connection.errhp));
1.1 parser 322: // allocate a user context handle
1.49 paf 323: check(connection, "HandleAlloc usrhp", OCIHandleAlloc(
324: (dvoid *)connection.envhp, (dvoid **)&connection.usrhp, (ub4)OCI_HTYPE_SESSION, 0, 0));
1.1 parser 325: // set 'user' name
1.49 paf 326: check(connection, "AttrSet user-session", OCIAttrSet(
327: (dvoid *)connection.usrhp, (ub4)OCI_HTYPE_SESSION,
1.1 parser 328: (dvoid *)user, (ub4)strlen(user),
1.49 paf 329: OCI_ATTR_USERNAME, connection.errhp));
1.1 parser 330: // set 'pwd' password
1.49 paf 331: check(connection, "AttrSet pwd-session", OCIAttrSet(
332: (dvoid *)connection.usrhp, (ub4)OCI_HTYPE_SESSION,
1.1 parser 333: (dvoid *)pwd, (ub4)strlen(pwd),
1.49 paf 334: OCI_ATTR_PASSWORD, connection.errhp));
1.1 parser 335: // Authenticate a user
1.49 paf 336: check(connection, "SessionBegin", OCISessionBegin(
337: connection.svchp, connection.errhp, connection.usrhp,
1.1 parser 338: OCI_CRED_RDBMS, OCI_DEFAULT));
339: // remember connection in session
1.49 paf 340: check(connection, "AttrSet service-session", OCIAttrSet(
341: (dvoid *)connection.svchp, (ub4)OCI_HTYPE_SVCCTX,
342: (dvoid *)connection.usrhp, (ub4)0,
343: OCI_ATTR_SESSION, connection.errhp));
1.1 parser 344: }
1.49 paf 345: void disconnect(void *aconnection) {
346: Connection& connection=*static_cast<Connection *>(aconnection);
1.47 paf 347:
348: // free fetch buffers
349: for(int i=0; i<MAX_COLS; i++) {
1.49 paf 350: if(void* fetch_buffer=connection.fetch_buffers[i])
1.47 paf 351: ::free(fetch_buffer);
352: else
353: break;
354: }
355:
1.1 parser 356: // Terminate a user session
357: OCISessionEnd(
1.49 paf 358: connection.svchp, connection.errhp, connection.usrhp, (ub4)OCI_DEFAULT);
1.1 parser 359: // Detach from a server; uninitialize server context handle
360: OCIServerDetach(
1.49 paf 361: connection.srvhp, connection.errhp, (ub4)OCI_DEFAULT);
1.1 parser 362: // Free a previously allocated handles
363: /*
364: oci will free them up as belonging to env
365: OCIHandleFree(
1.49 paf 366: (dvoid *)connection.srvhp, (ub4)OCI_HTYPE_SERVER);
1.1 parser 367: OCIHandleFree(
1.49 paf 368: (dvoid *)connection.svchp, (ub4)OCI_HTYPE_SVCCTX);
1.1 parser 369: OCIHandleFree(
1.49 paf 370: (dvoid *)connection.errhp, (ub4)OCI_HTYPE_ERROR);
1.1 parser 371: */
372: OCIHandleFree(
1.49 paf 373: (dvoid *)connection.envhp, (ub4)OCI_HTYPE_ENV);
1.1 parser 374:
375: // connections are cross-request, do not use services._alloc [linked with request]
1.49 paf 376: ::free(&connection);
1.1 parser 377: }
1.49 paf 378: void commit(void *aconnection) {
379: Connection& connection=*static_cast<Connection *>(aconnection);
380: if(setjmp(connection.mark))
381: connection.services->_throw(connection.error);
1.1 parser 382:
1.49 paf 383: check(connection, "commit", OCITransCommit(connection.svchp, connection.errhp, 0));
1.1 parser 384: }
1.49 paf 385: void rollback(void *aconnection) {
386: Connection& connection=*static_cast<Connection *>(aconnection);
387: if(setjmp(connection.mark))
388: connection.services->_throw(connection.error);
1.1 parser 389:
1.42 paf 390: // sometimes rollback is done in context when this yields error which masks previous error
391: // consider consequent errors not very important to report, reporting first one
1.49 paf 392: /*check(connection, "rollback", */OCITransRollback(connection.svchp, connection.errhp, 0)/*)*/;
1.1 parser 393: }
394:
1.45 paf 395: bool ping(void* /*connection*/) {
1.1 parser 396: // maybe OCIServerVersion?
1.4 paf 397: // select 0 from dual
1.1 parser 398: return true;
399: }
400:
1.49 paf 401: const char* quote(void *aconnection,
1.42 paf 402: const char *from, unsigned int length)
403: {
1.49 paf 404: Connection& connection=*static_cast<Connection *>(aconnection);
405: char *result=(char*)connection.services->malloc_atomic(length*2+1);
1.32 paf 406: char *to=result;
407: while(length--) {
408: switch(*from) {
409: case '\'': // "'" -> "''"
1.35 paf 410: *to++='\'';
1.32 paf 411: break;
1.1 parser 412: }
1.32 paf 413: *to++=*from++;
414: }
415: *to=0;
416: return result;
1.1 parser 417: }
1.49 paf 418: void query(void *aconnection,
1.1 parser 419: const char *astatement, unsigned long offset, unsigned long limit,
1.42 paf 420: SQL_Driver_query_event_handlers& handlers)
421: {
1.49 paf 422: Connection& connection=*static_cast<Connection *>(aconnection);
1.54 ! paf 423: const char* cstrClientCharset=connection.options.cstrClientCharset;
1.1 parser 424: OracleSQL_query_lobs lobs={{0}, 0};
425: OCIStmt *stmthp=0;
426:
1.49 paf 427: SQL_Driver_services& services=*connection.services;
1.42 paf 428:
429: // transcode from $request:charset to connect-string?client_charset
1.54 ! paf 430: if(cstrClientCharset) {
1.53 paf 431: size_t transcoded_statement_size;
1.42 paf 432: services.transcode(astatement, strlen(astatement),
433: astatement, transcoded_statement_size,
434: services.request_charset(),
435: cstrClientCharset);
1.53 paf 436: }
1.42 paf 437:
1.1 parser 438: bool failed=false;
1.49 paf 439: if(setjmp(connection.mark)) {
1.1 parser 440: failed=true;
441: goto cleanup;
442: } else {
1.49 paf 443: const char *statement=preprocess_statement(connection, astatement, lobs);
1.1 parser 444:
1.49 paf 445: check(connection, "HandleAlloc STMT", OCIHandleAlloc(
446: (dvoid *)connection.envhp, (dvoid **) &stmthp, (ub4)OCI_HTYPE_STMT, 0, 0));
447: check(connection, "syntax",
448: OCIStmtPrepare(stmthp, connection.errhp, (unsigned char *)statement,
1.1 parser 449: (ub4)strlen((char *)statement),
450: (ub4)OCI_NTV_SYNTAX, (ub4)OCI_DEFAULT));
451: {
452: for(int i=0; i<lobs.count; i++) {
1.49 paf 453: check(connection, "alloc output var desc", OCIDescriptorAlloc(
454: (dvoid *)connection.envhp, (dvoid **)&lobs.items[i].locator, (ub4)OCI_DTYPE_LOB, 0, 0));
1.1 parser 455:
1.49 paf 456: check(connection, "bind output", OCIBindByPos(stmthp,
457: &lobs.items[i].bind, connection.errhp,
1.1 parser 458: (ub4)1+i,
459: (dvoid *)&lobs.items[i].locator,
460: (sword)sizeof (lobs.items[i].locator), SQLT_CLOB, (dvoid *)0,
461: (ub2 *)0, (ub2 *)0, (ub4)0, (ub4 *)0, OCI_DATA_AT_EXEC));
462:
463: lobs.items[i].rows.count=0;
1.49 paf 464: OracleSQL_query_lobs::cbf_context_struct cbf_context={&connection, &lobs.items[i].rows};
465: check(connection, "bind dynamic", OCIBindDynamic(
466: lobs.items[i].bind, connection.errhp,
1.1 parser 467: (dvoid *) &cbf_context, cbf_no_data,
468: (dvoid *) &cbf_context, cbf_get_data));
469: }
470: }
471:
1.49 paf 472: execute_prepared(connection,
1.26 paf 473: statement, stmthp, lobs,
474: offset, limit, handlers);
1.1 parser 475: }
476: cleanup: // no check call after this point!
477: {
478: for(int i=0; i<lobs.count; i++) {
479: /* free var locator */
480: if(OCILobLocator *locator=lobs.items[i].locator)
481: OCIDescriptorFree((dvoid *)locator, (ub4)OCI_DTYPE_LOB);
482:
483: /* free rows descriptors */
484: OracleSQL_query_lobs::return_rows &rows=lobs.items[i].rows;
485: for(int r=0; r<rows.count; r++)
486: OCIDescriptorFree((dvoid *)rows.row[r].locator, (ub4)OCI_DTYPE_LOB);
487: }
488: }
489: if(stmthp)
490: OCIHandleFree((dvoid *)stmthp, (ub4)OCI_HTYPE_STMT);
491:
1.26 paf 492: if(failed) {
1.49 paf 493: if(connection.sql_error.defined())
494: services._throw(connection.sql_error);
495: services._throw(connection.error);
1.26 paf 496: }
1.1 parser 497: }
498:
499: private: // private funcs
500:
1.49 paf 501: const char *preprocess_statement(Connection& connection,
1.1 parser 502: const char *astatement, OracleSQL_query_lobs &lobs) {
503: size_t statement_size=strlen(astatement);
1.49 paf 504: SQL_Driver_services& services=*connection.services;
1.1 parser 505:
1.32 paf 506: char *result=(char *)services.malloc_atomic(statement_size
1.1 parser 507: +MAX_STRING // in case of short 'strings'
508: +11/* returning */+6/* into */+(MAX_LOB_NAME_LENGTH+2/*:, */)*2/*ret into*/*MAX_IN_LOBS
509: +1);
510: const char *o=astatement;
511:
512: // /**xxx**/'literal' -> EMPTY_CLOB_FUNC_CALL
513: char *n=result;
514: while(*o) {
515: if(
516: o[0]=='/' &&
517: o[1]=='*' &&
518: o[2]=='*') { // name start
1.34 paf 519: const char* saved_o=o;
1.1 parser 520: o+=3;
521: const char *name_begin=o;
522: while(*o)
523: if(
524: o[0]=='*' &&
525: o[1]=='*' &&
526: o[2]=='/' &&
527: o[3]=='\'') { // name end
1.34 paf 528: saved_o=0; // found, marking that
1.1 parser 529: const char *name_end=o;
530: o+=4;
531: OracleSQL_query_lobs::Item &item=lobs.items[lobs.count++];
532: item.name_ptr=name_begin; item.name_size=name_end-name_begin;
1.32 paf 533: item.data_ptr=(char *)services.malloc_atomic(statement_size/*max*/); item.data_size=0;
1.1 parser 534:
535: const char *start=o;
536: bool escaped=false;
537: while(*o && !(o[0]=='\'' && o[1]!='\'' && !escaped)) {
1.14 paf 538: escaped=o[0]=='\'' && o[1]=='\'';
1.1 parser 539: if(escaped) {
540: // write pending, skip "\" or "'"
541: if(size_t size=o-start) {
542: memcpy(item.data_ptr+item.data_size, start, size);
543: item.data_size+=size;
544: }
545: start=++o;
546: } else
547: o++;
548: }
549: if(size_t size=o-start) {
550: memcpy(item.data_ptr+item.data_size, start, size);
551: item.data_size+=size;
552: }
553: if(*o)
554: o++; // skip "'"
555:
556: n+=sprintf(n, EMPTY_CLOB_FUNC_CALL);
557: break;
558: } else
559: o++; // /**skip**/'xxx'
1.34 paf 560: if(saved_o) {
561: o=saved_o;
562: *n++=*o++;
563: }
1.1 parser 564: } else
565: *n++=*o++;
566: }
567: *n=0;
568:
569: if(lobs.count) {
570: int i;
571: n+=sprintf(n, " returning ");
572: for(i=0; i<lobs.count; i++) {
573: if(i)
574: *n++=',';
575: n+=sprintf(n, "%.*s", lobs.items[i].name_size, lobs.items[i].name_ptr);
576: }
577: n+=sprintf(n, " into ");
578: for(i=0; i<lobs.count; i++) {
579: if(i)
1.41 paf 580: *n++=',';
1.1 parser 581: n+=sprintf(n, ":%.*s", lobs.items[i].name_size, lobs.items[i].name_ptr);
582: }
583: }
584:
585: return result;
586: }
587:
588: void execute_prepared(
1.49 paf 589: Connection& connection,
1.1 parser 590: const char *statement, OCIStmt *stmthp, OracleSQL_query_lobs &lobs,
591: unsigned long offset, unsigned long limit,
592: SQL_Driver_query_event_handlers& handlers) {
593:
594: ub2 stmt_type=0; // UNKNOWN
595: /*
596: //gpfs on sun. paf 000818
597: //Zanyway, this is needed before.
1.49 paf 598: check(connection, "get stmt type", OCIAttrGet(
1.1 parser 599: (dvoid *)stmthp, (ub4)OCI_HTYPE_STMT, (ub1 *)&stmt_type,
1.49 paf 600: (ub4 *)0, OCI_ATTR_STMT_TYPE, connection.errhp));
1.1 parser 601: */
1.16 paf 602:
1.17 paf 603: while(isspace(*statement))
1.16 paf 604: statement++;
1.1 parser 605: if(strncasecmp(statement, "select", 6)==0)
606: stmt_type=OCI_STMT_SELECT;
607: else if(strncasecmp(statement, "insert", 6)==0)
608: stmt_type=OCI_STMT_INSERT;
609: else if(strncasecmp(statement, "update", 6)==0)
610: stmt_type=OCI_STMT_UPDATE;
611:
1.49 paf 612: sword status=OCIStmtExecute(connection.svchp, stmthp, connection.errhp,
1.1 parser 613: (ub4)stmt_type==OCI_STMT_SELECT?0:1, (ub4)0,
614: (OCISnapshot *)NULL,
615: (OCISnapshot *)NULL, (ub4)OCI_DEFAULT);
616:
617: if(status!=OCI_NO_DATA)
1.49 paf 618: check(connection, "execute", status);
1.1 parser 619:
620: {
621: for(int i=0; i<lobs.count; i++)
622: if(ub4 bytes_to_write=lobs.items[i].data_size) {
623: OracleSQL_query_lobs::return_rows *rows=&lobs.items[i].rows;
624: for(int r=0; r<rows->count; r++) {
625: OCILobLocator *locator=rows->row[r].locator;
1.49 paf 626: check(connection, "lobwrite", OCILobWrite (
627: connection.svchp, connection.errhp,
1.1 parser 628: locator, &bytes_to_write, 1,
629: (dvoid *)lobs.items[i].data_ptr, (ub4)bytes_to_write, OCI_ONE_PIECE,
630: (dvoid *)0, 0, (ub2)0,
631: (ub1) SQLCS_IMPLICIT));
632: }
633: }
634: }
635:
636: switch(stmt_type) {
637: case OCI_STMT_SELECT:
1.49 paf 638: fetch_table(connection,
1.1 parser 639: stmthp, offset, limit,
640: handlers);
641: break;
642: default:
643: /*
644: case OCI_STMT_INSERT:
645: case OCI_STMT_UPDATE:
646: */
647: break;
648: }
649: }
650:
1.49 paf 651: void fetch_table(Connection& connection,
1.1 parser 652: OCIStmt *stmthp, unsigned long offset, unsigned long limit,
1.42 paf 653: SQL_Driver_query_event_handlers& handlers)
654: {
1.54 ! paf 655: const char* cstrClientCharset=connection.options.cstrClientCharset;
1.49 paf 656: SQL_Driver_services& services=*connection.services;
1.12 paf 657:
1.10 paf 658: ub4 prefetch_rows=100;
1.49 paf 659: check(connection, "AttrSet prefetch-rows", OCIAttrSet(
1.9 paf 660: (dvoid *)stmthp, (ub4)OCI_HTYPE_STMT,
661: (dvoid *)&prefetch_rows, (ub4)0,
1.49 paf 662: (ub4)OCI_ATTR_PREFETCH_ROWS, (OCIError *)connection.errhp));
1.9 paf 663:
1.20 paf 664: ub4 prefetch_mem_size=100*0x400;
1.49 paf 665: check(connection, "AttrSet prefetch-memory", OCIAttrSet(
1.9 paf 666: (dvoid *)stmthp, (ub4)OCI_HTYPE_STMT,
667: (dvoid *)&prefetch_mem_size, (ub4)0,
1.49 paf 668: (ub4)OCI_ATTR_PREFETCH_MEMORY, (OCIError *)connection.errhp));
1.1 parser 669:
670: OCIParam *mypard;
671: ub2 dtype;
1.51 paf 672: const char* col_name;
1.1 parser 673:
1.40 paf 674: struct Col {
1.1 parser 675: ub2 type;
676: char *str;
677: OCILobLocator *var;
678: OCIDefine *def;
679: sb2 indicator;
680: } cols[MAX_COLS]={0};
681: int column_count=0;
682:
683: bool failed=false;
1.49 paf 684: jmp_buf saved_mark; memcpy(saved_mark, connection.mark, sizeof(jmp_buf));
685: if(setjmp(connection.mark)) {
1.1 parser 686: failed=true;
687: goto cleanup;
688: } else {
1.27 paf 689: // idea of preincrementing is that at error time all handles would free up
690: while(++column_count<=MAX_COLS) {
691: /* get next descriptor, if there is one */
1.49 paf 692: if(OCIParamGet(stmthp, OCI_HTYPE_STMT, connection.errhp, (void **)&mypard,
1.27 paf 693: (ub4) column_count)!=OCI_SUCCESS) {
694: --column_count;
695: break;
696: }
697:
698: /* Retrieve the data type attribute */
1.49 paf 699: check(connection, "get type", OCIAttrGet(
1.27 paf 700: (dvoid*) mypard, (ub4)OCI_DTYPE_PARAM,
701: (dvoid*) &dtype, (ub4 *)0, (ub4)OCI_ATTR_DATA_TYPE,
1.49 paf 702: (OCIError *)connection.errhp));
1.27 paf 703:
704: /* Retrieve the column name attribute */
705: ub4 col_name_len;
1.49 paf 706: check(connection, "get name", OCIAttrGet(
1.27 paf 707: (dvoid*) mypard, (ub4)OCI_DTYPE_PARAM,
708: (dvoid**) &col_name, (ub4 *) &col_name_len, (ub4)OCI_ATTR_NAME,
1.49 paf 709: (OCIError *)connection.errhp));
1.51 paf 710: // transcode to $request:charset from connect-string?client_charset
1.54 ! paf 711: if(cstrClientCharset) {
1.51 paf 712: services.transcode(col_name, col_name_len,
713: col_name, col_name_len,
714: cstrClientCharset,
715: services.request_charset());
716: }
717:
1.40 paf 718: Col& col=cols[column_count-1];
1.27 paf 719: {
1.38 paf 720: size_t length=(size_t)col_name_len;
721: char *ptr=(char *)services.malloc_atomic(length+1);
1.49 paf 722: if( connection.options.bLowerCaseColumnNames )
1.51 paf 723: tolower(ptr, col_name, length);
1.39 paf 724: else
725: memcpy(ptr, col_name, length);
1.38 paf 726: ptr[length]=0;
1.49 paf 727: check(connection, handlers.add_column(connection.sql_error, ptr, length));
1.27 paf 728: }
729:
730: ub2 coerce_type=dtype;
731: sb4 size=0;
732: void *ptr;
733:
734: switch(dtype) {
735: case SQLT_CLOB:
1.1 parser 736: {
1.49 paf 737: check(connection, "alloc output var desc", OCIDescriptorAlloc(
738: (dvoid *)connection.envhp, (dvoid **)(ptr=&col.var),
1.27 paf 739: (ub4)OCI_DTYPE_LOB,
740: 0, (dvoid **)0));
741:
742: size=0;
1.1 parser 743: break;
744: }
1.27 paf 745: default:
746: coerce_type=SQLT_STR;
1.49 paf 747: char*& buf=connection.fetch_buffers[column_count-1];
1.46 paf 748: ptr=buf; // get cached buffer
749: if(!ptr) // allocate if needed, caching it
1.47 paf 750: ptr=buf=(char *)::/*see disconnect*/malloc(MAX_OUT_STRING_LENGTH+1/*terminator*/);
1.46 paf 751: col.str=(char*)ptr;
1.27 paf 752: size=MAX_OUT_STRING_LENGTH;
753: break;
1.1 parser 754: }
755:
1.40 paf 756: col.type=coerce_type;
1.1 parser 757:
1.48 paf 758: // http://i/docs/oracle/server.804/a58234/oci_func.htm#449680
759: // this call implicitly allocates the define handle
760: // http://sunsite.eunnet.net/documentation/oracle.8.0.4/server.804/a58234/basics.htm
761: // when a statement handle is freed, any bind and define handles associated with it
762: // are also freed
1.49 paf 763: col.def=0; check(connection, "DefineByPos", OCIDefineByPos(
764: stmthp, &col.def, connection.errhp,
1.27 paf 765: column_count, (ub1 *) ptr, size,
1.40 paf 766: coerce_type, (dvoid *) &col.indicator,
1.27 paf 767: (ub2 *)0, (ub2 *)0, OCI_DEFAULT));
768: }
769:
1.49 paf 770: check(connection, handlers.before_rows(connection.sql_error));
1.27 paf 771:
772: for(unsigned long row=0; !limit||row<offset+limit; row++) {
1.49 paf 773: sword status=OCIStmtFetch(stmthp, connection.errhp, (ub4)1, (ub4)OCI_FETCH_NEXT,
1.27 paf 774: (ub4)OCI_DEFAULT);
775: if(status==OCI_NO_DATA)
776: break;
1.49 paf 777: check(connection, "fetch", status);
1.3 paf 778:
1.27 paf 779: if(row>=offset) {
1.49 paf 780: check(connection, handlers.add_row(connection.sql_error));
1.27 paf 781: for(int i=0; i<column_count; i++) {
1.37 paf 782: size_t length=0;
1.42 paf 783: char* strm=0;
1.27 paf 784: if(!cols[i].indicator) // not NULL
785: switch(cols[i].type) {
786: case SQLT_CLOB:
787: {
788: ub4 offset=1;
789: OCILobLocator *var=(OCILobLocator *)cols[i].var;
1.42 paf 790: size_t read_size=0;
1.45 paf 791: strm=(char*)services.malloc_atomic(1/*for terminator*/); // set type of memory block
1.42 paf 792: do {
793: char buf[MAX_STRING*10];
1.45 paf 794: ub4 amtp=0/*to be read in stream mode*/;
795: // http://i/docs/oracle/server.804/a58234/oci_func.htm#427818
1.49 paf 796: status=OCILobRead(connection.svchp, connection.errhp,
1.42 paf 797: var, &amtp, offset, (dvoid *)buf,
798: sizeof(buf),
799: (dvoid *)0, 0,
800: (ub2)0, (ub1)SQLCS_IMPLICIT);
801: if(status!=OCI_SUCCESS && status!=OCI_NEED_DATA)
1.49 paf 802: check(connection, "lobread", status);
1.42 paf 803:
1.45 paf 804: strm=(char*)services.realloc(strm, read_size+amtp+1/*for termintator*/);
1.42 paf 805: memcpy(strm+read_size, buf, amtp);
806: read_size+=amtp;
807: offset+=amtp;
808: } while(status==OCI_NEED_DATA);
809:
810: length=(size_t)read_size;
811: strm[length]=0;
1.1 parser 812: break;
813: }
1.27 paf 814: default:
1.32 paf 815: if(const char *value=cols[i].str) {
1.37 paf 816: length=strlen(value);
1.42 paf 817: strm=(char*)services.malloc_atomic(length+1);
818: memcpy(strm, value, length+1);
1.27 paf 819: } else {
1.37 paf 820: length=0;
1.42 paf 821: strm=0;
1.27 paf 822: }
823: break;
824: }
1.42 paf 825:
826: const char* str=strm;
827: if(str && length)
828: {
829: // transcode to $request:charset from connect-string?client_charset
1.54 ! paf 830: if(cstrClientCharset)
1.42 paf 831: services.transcode(str, length,
1.53 paf 832: str, length,
1.42 paf 833: cstrClientCharset,
834: services.request_charset());
835: }
836:
1.49 paf 837: check(connection, handlers.add_row_cell(connection.sql_error, str, length));
1.1 parser 838: }
839: }
840: }
841: }
842:
843: cleanup: // no check call after this point!
844: for(int i=0; i<column_count; i++) {
845: switch(cols[i].type) {
846: case SQLT_CLOB:
847: /* free var locator */
848: OCIDescriptorFree((dvoid *) cols[i].var, (ub4)OCI_DTYPE_LOB);
849: break;
850: default:
851: break;
852: }
853: }
854:
855: if(failed) // need rethrow?
856: longjmp(saved_mark, 1);
857: }
858:
859: private: // conn client library funcs
860:
1.49 paf 861: friend void check(Connection& connection, const char *step, sword status);
1.1 parser 862: friend sb4 cbf_get_data(dvoid *ctxp,
863: OCIBind *bindp,
864: ub4 iter, ub4 index,
865: dvoid **bufpp,
866: ub4 **alenp,
867: ub1 *piecep,
868: dvoid **indpp,
869: ub2 **rcodepp);
870:
871:
872: #define OCI_DECL(name, params) \
873: typedef sword (*t_OCI##name)params; t_OCI##name OCI##name
874:
875: OCI_DECL(Initialize, (ub4 mode, dvoid *ctxp,
876: dvoid * (*malocfp)(dvoid *ctxp, size_t size),
877: dvoid * (*ralocfp)(dvoid *ctxp, dvoid *memptr, size_t newsize),
878: void (*mfreefp)(dvoid *ctxp, dvoid *memptr) ));
879:
880: OCI_DECL(EnvInit, (OCIEnv **envp, ub4 mode,
881: size_t xtramem_sz, dvoid **usrmempp));
882:
883: OCI_DECL(AttrGet, (CONST dvoid *trgthndlp, ub4 trghndltyp,
884: dvoid *attributep, ub4 *sizep, ub4 attrtype,
885: OCIError *errhp));
886:
887: OCI_DECL(AttrSet, (dvoid *trgthndlp, ub4 trghndltyp, dvoid *attributep,
888: ub4 size, ub4 attrtype, OCIError *errhp));
889:
890: OCI_DECL(BindByPos, (OCIStmt *stmtp, OCIBind **bindp, OCIError *errhp,
891: ub4 position, dvoid *valuep, sb4 value_sz,
892: ub2 dty, dvoid *indp, ub2 *alenp, ub2 *rcodep,
893: ub4 maxarr_len, ub4 *curelep, ub4 mode));
894:
895: OCI_DECL(BindDynamic, (OCIBind *bindp, OCIError *errhp, dvoid *ictxp,
896: OCICallbackInBind icbfp, dvoid *octxp,
897: OCICallbackOutBind ocbfp));
898:
899: OCI_DECL(DefineByPos, (OCIStmt *stmtp, OCIDefine **defnp, OCIError *errhp,
900: ub4 position, dvoid *valuep, sb4 value_sz, ub2 dty,
901: dvoid *indp, ub2 *rlenp, ub2 *rcodep, ub4 mode));
902:
903: OCI_DECL(DescriptorAlloc, (CONST dvoid *parenth, dvoid **descpp,
904: CONST ub4 type, CONST size_t xtramem_sz,
905: dvoid **usrmempp));
906:
907: OCI_DECL(DescriptorFree, (dvoid *descp, CONST ub4 type));
908:
909:
910: OCI_DECL(ErrorGet, (dvoid *hndlp, ub4 recordno, OraText *sqlstate,
911: sb4 *errcodep, OraText *bufp, ub4 bufsiz, ub4 type));
912:
913: OCI_DECL(HandleAlloc, (CONST dvoid *parenth, dvoid **hndlpp, CONST ub4 type,
914: CONST size_t xtramem_sz, dvoid **usrmempp));
915:
916: OCI_DECL(HandleFree, (dvoid *hndlp, CONST ub4 type));
917:
918: OCI_DECL(LobGetLength, (OCISvcCtx *svchp, OCIError *errhp,
919: OCILobLocator *locp,
920: ub4 *lenp));
921:
922: OCI_DECL(LobRead, (OCISvcCtx *svchp, OCIError *errhp, OCILobLocator *locp,
923: ub4 *amtp, ub4 offset, dvoid *bufp, ub4 bufl,
924: dvoid *ctxp, sb4 (*cbfp)(dvoid *ctxp,
925: CONST dvoid *bufp,
926: ub4 len,
927: ub1 piece),
928: ub2 csid, ub1 csfrm));
929:
930: OCI_DECL(LobWrite, (OCISvcCtx *svchp, OCIError *errhp, OCILobLocator *locp,
931: ub4 *amtp, ub4 offset, dvoid *bufp, ub4 buflen,
932: ub1 piece, dvoid *ctxp,
933: sb4 (*cbfp)(dvoid *ctxp,
934: dvoid *bufp,
935: ub4 *len,
936: ub1 *piece),
937: ub2 csid, ub1 csfrm));
938:
939: OCI_DECL(ParamGet, (CONST dvoid *hndlp, ub4 htype, OCIError *errhp,
940: dvoid **parmdpp, ub4 pos));
941:
942: OCI_DECL(ServerAttach, (OCIServer *srvhp, OCIError *errhp,
943: CONST OraText *dblink, sb4 dblink_len, ub4 mode));
944:
945: OCI_DECL(ServerDetach, (OCIServer *srvhp, OCIError *errhp, ub4 mode));
946:
947: OCI_DECL(SessionBegin, (OCISvcCtx *svchp, OCIError *errhp, OCISession *usrhp,
948: ub4 credt, ub4 mode));
949:
950: OCI_DECL(SessionEnd, (OCISvcCtx *svchp, OCIError *errhp, OCISession *usrhp,
951: ub4 mode));
952:
953: OCI_DECL(StmtExecute, (OCISvcCtx *svchp, OCIStmt *stmtp, OCIError *errhp,
954: ub4 iters, ub4 rowoff, CONST OCISnapshot *snap_in,
955: OCISnapshot *snap_out, ub4 mode));
956:
957: OCI_DECL(StmtFetch, (OCIStmt *stmtp, OCIError *errhp, ub4 nrows,
958: ub2 orientation, ub4 mode));
959:
960: OCI_DECL(StmtPrepare, (OCIStmt *stmtp, OCIError *errhp, CONST OraText *stmt,
961: ub4 stmt_len, ub4 language, ub4 mode));
962:
963: OCI_DECL(TransCommit, (OCISvcCtx *svchp, OCIError *errhp, ub4 flags));
964:
965: OCI_DECL(TransRollback, (OCISvcCtx *svchp, OCIError *errhp, ub4 flags));
966:
967: private: // conn client library funcs linking
968:
969: const char *dlink(const char *dlopen_file_spec) {
970: if(lt_dlinit())
971: return lt_dlerror();
972: lt_dlhandle handle=lt_dlopen(dlopen_file_spec);
973: if(!handle)
974: return lt_dlerror(); //"can not open the dynamic link module";
975:
976: #define DSLINK(name, action) \
977: name=(t_##name)lt_dlsym(handle, #name); \
978: if(!name) \
979: action;
980:
981: #define OCI_LINK(name) DSLINK(OCI##name, return "function OCI" #name " was not found")
982:
983: OCI_LINK(Initialize);
984: OCI_LINK(EnvInit);
985: OCI_LINK(AttrGet); OCI_LINK(AttrSet);
986: OCI_LINK(BindByPos); OCI_LINK(BindDynamic);
987: OCI_LINK(DefineByPos);
988: OCI_LINK(DescriptorAlloc); OCI_LINK(DescriptorFree);
989: OCI_LINK(ErrorGet);
990: OCI_LINK(HandleAlloc); OCI_LINK(HandleFree);
991: OCI_LINK(LobGetLength);
992: OCI_LINK(LobRead); OCI_LINK(LobWrite);
993: OCI_LINK(ParamGet);
994: OCI_LINK(ServerAttach); OCI_LINK(ServerDetach);
995: OCI_LINK(SessionBegin); OCI_LINK(SessionEnd);
996: OCI_LINK(StmtExecute); OCI_LINK(StmtFetch); OCI_LINK(StmtPrepare);
997: OCI_LINK(TransCommit); OCI_LINK(TransRollback);
998:
999: return 0;
1000: }
1001:
1002: } *OracleSQL_driver;
1003:
1.49 paf 1004: void check(Connection& connection, const char *step, sword status) {
1.1 parser 1005:
1006: const char *msg;
1007: char reason[MAX_STRING/2];
1008:
1009: switch (status) {
1.22 paf 1010: case OCI_SUCCESS: // hurrah
1011: case OCI_SUCCESS_WITH_INFO: // ignoring. example: count(column) when column contains NULLs,
1012: // count() not counting them and gives that status
1013: return;
1.1 parser 1014: case OCI_ERROR:
1015: {
1.45 paf 1016: sb4 errcode;
1.49 paf 1017: if(OracleSQL_driver->OCIErrorGet((dvoid *)connection.errhp, (ub4)1, (text *)NULL, &errcode,
1.45 paf 1018: (text *)reason, (ub4)sizeof(reason), OCI_HTYPE_ERROR)==OCI_SUCCESS) {
1019: msg=reason;
1020:
1021: // transcode to $request:charset from connect-string?client_charset
1.49 paf 1022: if(const char* cstrClientCharset=connection.options.cstrClientCharset) {
1.45 paf 1023: if(msg) {
1024: if(size_t msg_length=strlen(msg)) {
1.49 paf 1025: connection.services->transcode(msg, msg_length,
1.45 paf 1026: msg, msg_length,
1027: cstrClientCharset,
1.49 paf 1028: connection.services->request_charset());
1.45 paf 1029: }
1.42 paf 1030: }
1031: }
1.45 paf 1032: } else
1033: msg="[can not get error description]";
1034: break;
1.1 parser 1035: }
1036: case OCI_NEED_DATA:
1037: msg="NEED_DATA"; break;
1038: case OCI_NO_DATA:
1039: msg="NODATA"; break;
1040: case OCI_INVALID_HANDLE:
1041: msg="INVALID_HANDLE"; break;
1042: case OCI_STILL_EXECUTING:
1043: msg="STILL_EXECUTE"; break;
1044: case OCI_CONTINUE:
1045: msg="CONTINUE"; break;
1046: default:
1047: msg="unknown"; break;
1048: }
1049:
1.49 paf 1050: snprintf(connection.error, sizeof(connection.error), "%s (%s, %d)",
1.22 paf 1051: msg, step, (int)status);
1.49 paf 1052: longjmp(connection.mark, 1);
1.1 parser 1053: }
1054:
1.49 paf 1055: void check(Connection& connection, bool error) {
1.27 paf 1056: if(error)
1.49 paf 1057: longjmp(connection.mark, 1);
1.27 paf 1058: }
1.1 parser 1059:
1060: /* ----------------------------------------------------------------- */
1061: /* Intbind callback that does not do any data input. */
1062: /* ----------------------------------------------------------------- */
1063: static sb4 cbf_no_data(
1.45 paf 1064: dvoid* /*ctxp*/,
1065: OCIBind* /*bindp*/,
1066: ub4 /*iter*/, ub4 /*index*/,
1.1 parser 1067: dvoid **bufpp,
1068: ub4 *alenpp,
1069: ub1 *piecep,
1070: dvoid **indpp) {
1071: *bufpp=(dvoid *)0;
1072: *alenpp=0;
1073: static sb2 null_ind=-1;
1074: *indpp=(dvoid *) &null_ind;
1075: *piecep=OCI_ONE_PIECE;
1076:
1077: return OCI_CONTINUE;
1078: }
1079:
1080: /* ----------------------------------------------------------------- */
1081: /* Outbind callback for returning data. */
1082: /* ----------------------------------------------------------------- */
1083: static sb4 cbf_get_data(dvoid *ctxp,
1084: OCIBind *bindp,
1.45 paf 1085: ub4 /*iter*/, ub4 index,
1.1 parser 1086: dvoid **bufpp,
1087: ub4 **alenp,
1088: ub1 *piecep,
1089: dvoid **indpp,
1090: ub2 **rcodepp) {
1091: OracleSQL_query_lobs::cbf_context_struct &context=
1092: *(OracleSQL_query_lobs::cbf_context_struct *)ctxp;
1093:
1094: if(index==0) {
1095: static ub4 rows;
1.49 paf 1096: check(*context.connection, "AttrGet cbf_get_data ROWS_RETURNED",
1.1 parser 1097: OracleSQL_driver->OCIAttrGet(
1098: (CONST dvoid *) bindp, OCI_HTYPE_BIND, (dvoid *)&rows,
1.49 paf 1099: (ub4 *)sizeof(ub2), OCI_ATTR_ROWS_RETURNED, context.connection->errhp)) ;
1.1 parser 1100: context.rows->count=(ub2)rows;
1101: context.rows->row=(OracleSQL_query_lobs::return_rows::return_row *)
1.49 paf 1102: context.connection->services->malloc_atomic(sizeof(OracleSQL_query_lobs::return_rows::return_row)*rows);
1.1 parser 1103: }
1104:
1105: OracleSQL_query_lobs::return_rows::return_row &var=context.rows->row[index];
1106:
1.49 paf 1107: check(*context.connection, "alloc output var desc dynamic", OracleSQL_driver->OCIDescriptorAlloc(
1108: (dvoid *) context.connection->envhp, (dvoid **)&var.locator,
1.1 parser 1109: (ub4)OCI_DTYPE_LOB,
1110: 0, (dvoid **)0));
1111:
1112: *bufpp=var.locator;
1113: *alenp=&var.len;
1114: *indpp=(dvoid *) &var.ind;
1115: *piecep=OCI_ONE_PIECE;
1116: *rcodepp=&var.rcode;
1117:
1118: return OCI_CONTINUE;
1119: }
1120:
1.52 paf 1121: static void tolower(char *out, const char *in, size_t size) {
1.38 paf 1122: while(size--)
1.45 paf 1123: *out++=(char)tolower(*in++);
1.1 parser 1124: }
1.52 paf 1125: static void toupper(char *out, const char *in, size_t size) {
1.44 paf 1126: while(size--)
1.45 paf 1127: *out++=(char)toupper(*in++);
1.44 paf 1128: }
1129:
1.1 parser 1130:
1131: extern "C" SQL_Driver *SQL_DRIVER_CREATE() {
1132: return OracleSQL_driver=new OracleSQL_Driver();
1133: }