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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: */
1.59 ! paf 10: static const char *RCSId="$Id: parser3oracle.C,v 1.58 2004/05/25 07:00:09 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: }
86: return setenv(name, value, 1/*overwrite*/);
1.10 paf 87: } else {
1.4 paf 88: unsetenv(name);
89: return 0;
90: }
91: #endif
92: }
93:
1.1 parser 94: static char *lsplit(char *string, char delim) {
95: if(string) {
96: char *v=strchr(string, delim);
97: if(v) {
98: *v=0;
99: return v+1;
100: }
101: }
102: return 0;
103: }
104:
1.4 paf 105: static char *lsplit(char **string_ref, char delim) {
106: char *result=*string_ref;
107: char *next=lsplit(*string_ref, delim);
108: *string_ref=next;
109: return result;
110: }
111:
1.1 parser 112: #ifndef DOXYGEN
1.49 paf 113: struct Connection {
1.42 paf 114: SQL_Driver_services *services;
115:
1.1 parser 116: jmp_buf mark; char error[MAX_STRING];
1.27 paf 117: SQL_Error sql_error;
1.1 parser 118: OCIEnv *envhp;
119: OCIServer *srvhp;
120: OCIError *errhp;
121: OCISvcCtx *svchp;
122: OCISession *usrhp;
1.39 paf 123:
1.46 paf 124: char* fetch_buffers[MAX_COLS];
125:
1.42 paf 126: struct Options {
127: bool bLowerCaseColumnNames;
128: const char* cstrClientCharset;
129: } options;
1.1 parser 130: };
131:
132: struct OracleSQL_query_lobs {
133: struct return_rows {
134: struct return_row {
135: OCILobLocator *locator; ub4 len;
136: int ind;
137: ub2 rcode;
138: } *row;
139: int count;
140: };
141: struct Item {
142: const char *name_ptr; size_t name_size;
143: char *data_ptr; size_t data_size;
144: OCILobLocator *locator;
145: OCIBind *bind;
146: return_rows rows;
1.57 paf 147: Connection *connection;
1.1 parser 148: } items[MAX_IN_LOBS];
149: int count;
150: };
151: #endif
152:
153: // forwards
1.49 paf 154: void check(Connection& connection, const char *step, sword status);
155: void check(Connection& connection, bool error);
1.1 parser 156: static sb4 cbf_no_data(
157: dvoid *ctxp,
158: OCIBind *bindp,
159: ub4 iter, ub4 index,
160: dvoid **bufpp,
161: ub4 *alenpp,
162: ub1 *piecep,
163: dvoid **indpp);
164: static sb4 cbf_get_data(dvoid *ctxp,
165: OCIBind *bindp,
166: ub4 iter, ub4 index,
167: dvoid **bufpp,
168: ub4 **alenp,
169: ub1 *piecep,
170: dvoid **indpp,
171: ub2 **rcodepp);
1.55 paf 172: static void tolower_str(char *out, const char *in, size_t size);
173: static void toupper_str(char *out, const char *in, size_t size);
1.1 parser 174:
1.49 paf 175: static const char *options2env(char *s, Connection::Options* options) {
1.42 paf 176: while(s) {
177: if(char *key=lsplit(&s, '&')) {
178: if(*key) {
179: if(char *value=lsplit(key, '=')) {
180: if( strcmp( key, "ClientCharset" ) == 0 ) {
1.44 paf 181: if(options) {
1.55 paf 182: toupper_str(value, value, strlen(value));
1.42 paf 183: options->cstrClientCharset = value;
1.44 paf 184: }
1.42 paf 185: continue;
186: }
187:
188: if( strcmp( key, "LowerCaseColumnNames" ) == 0 ) {
189: if(options)
190: options->bLowerCaseColumnNames = atoi(value)!=0;
191: continue;
192: }
193:
194: bool do_append=key[strlen(key)-1]=='+'; // PATH+=
195: if(do_append)
196: key[strlen(key)-1]=0; // remove trailing +
197: if(strncmp(key, "ORACLE_", 7)==0 // ORACLE_HOME & co
198: || strncmp(key, "ORA_", 4)==0 // ORA_ENCRYPT_LOGIN & co
199: || strncmp(key, "NLS_", 4)==0 // NLS_LANG & co
200: || do_append
201: ) {
202: if(pa_setenv(key, value, do_append)!=0)
203: return "problem changing process environment" /*key*/;
204: } else
205: return "unknown option" /*key*/;
206: } else
207: return "option without =value" /*key*/;
208: }
209: }
210: }
211: return 0;
212: }
213:
1.1 parser 214: /**
215: OracleSQL server driver
216: */
217: class OracleSQL_Driver : public SQL_Driver {
218: public:
219:
220: OracleSQL_Driver() : SQL_Driver() {
221: }
222:
223: /// get api version
224: int api_version() { return SQL_DRIVER_API_VERSION; }
1.6 paf 225: /** initialize driver by loading sql dynamic link library
226: @todo ?objects=1 which would turn on OCI_OBJECT init flag
227: */
1.5 paf 228: const char *initialize(char *dlopen_file_spec) {
229: char *options=lsplit(dlopen_file_spec, '?');
1.1 parser 230:
231: const char *error=dlopen_file_spec?
232: dlink(dlopen_file_spec):"client library column is empty";
233: if(!error) {
1.39 paf 234: error=options2env(options, 0);
1.1 parser 235:
1.5 paf 236: if(!error)
237: OCIInitialize((ub4)OCI_THREADED/*| OCI_OBJECT*/, (dvoid *)0,
238: (dvoid * (*)(void *, unsigned int))0,
239: (dvoid * (*)(void*, void*, unsigned int))0,
240: (void (*)(void*, void*))0
241: );
1.1 parser 242: }
243:
244: return error;
245: }
246:
247: /** connect
1.58 paf 248: @param url
1.4 paf 249: format: @b user:pass@service?
250: ORACLE_HOME=/u01/app/oracle/product/8.1.5&
1.5 paf 251: ORA_NLS33=/u01/app/oracle/product/8.1.5/ocommon/nls/admin/data&
1.4 paf 252: NLS_LANG=RUSSIAN_AMERICA.CL8MSWIN1251&
253: ORA_ENCRYPT_LOGIN=TRUE
254:
255: @todo environment manupulation doesnt look thread safe
1.58 paf 256: @todo allocate 'aused_only_in_connect_url' on gc heap, so it can be manipulated directly
1.1 parser 257: */
258: void connect(
1.58 paf 259: char *url,
1.1 parser 260: SQL_Driver_services& services,
1.50 paf 261: void **connection_ref ///< output: Connection *
1.56 paf 262: )
263: {
264: // connections are cross-request, do not use services._alloc [linked with request]
1.58 paf 265: Connection& connection=*(Connection *)services.malloc(sizeof(Connection));
1.49 paf 266: connection.services=&services;
267: connection.options.bLowerCaseColumnNames = true;
1.50 paf 268: *connection_ref=&connection;
1.1 parser 269:
1.58 paf 270: char *user=url;
1.1 parser 271: char *service=lsplit(user, '@');
272: char *pwd=lsplit(user, ':');
1.4 paf 273: char *options=lsplit(service, '?');
1.1 parser 274:
275: if(!(user && pwd && service))
276: services._throw("mailformed connect part, must be 'user:pass@service'");
277:
1.49 paf 278: if(const char *error=options2env(options, &connection.options))
1.5 paf 279: services._throw(error);
1.4 paf 280:
1.49 paf 281: if(setjmp(connection.mark))
282: services._throw(connection.error);
1.1 parser 283:
284: // Allocate and initialize OCIError handle, attempt #1
285: /*
286: grabbed from sample
287: /server.804/a58234/oci_func.htm#446192
288: but doc
289: /server.804/a58234/oci_func.htm#446100
290: doesnt have this param listed as allowed
291: 8.1.6 client library barks as OCI_INVALID_HANDLE
292: and debugging revealed that OCI_HTYPE_ENV param value is invalid
293: later in doc
294: /server.804/a58234/oci_func.htm#446192
295: on OCIEnvInit thay say
296: "No changes are done to an already initialized handle"
297: think, this is some sort of backward compatibility wonder.
298: leaving as it is, and without check()
299: */
1.49 paf 300: OCIHandleAlloc((dvoid *)NULL, (dvoid **) &connection.envhp, (ub4)OCI_HTYPE_ENV, 0, 0);
1.1 parser 301: // Initialize an environment handle, attempt #2
1.49 paf 302: check(connection, "EnvInit", OCIEnvInit(
303: &connection.envhp, (ub4)OCI_DEFAULT, 0, 0));
1.1 parser 304: // Allocate and initialize OCIError handle
1.49 paf 305: check(connection, "HandleAlloc errhp", OCIHandleAlloc(
306: (dvoid *)connection.envhp, (dvoid **) &connection.errhp, (ub4)OCI_HTYPE_ERROR, 0, 0));
1.1 parser 307: // Allocate and initialize OCIServer handle
1.49 paf 308: check(connection, "HandleAlloc srvhp", OCIHandleAlloc(
309: (dvoid *)connection.envhp, (dvoid **) &connection.srvhp, (ub4)OCI_HTYPE_SERVER, 0, 0));
1.1 parser 310: // Attach to a 'service'; initialize server context handle
1.49 paf 311: check(connection, "ServerAttach", OCIServerAttach(
312: connection.srvhp, connection.errhp, (text *)service, (sb4)strlen(service), (ub4)OCI_DEFAULT));
1.1 parser 313: // Allocate and initialize OCISvcCtx handle
1.49 paf 314: check(connection, "HandleAlloc svchp", OCIHandleAlloc(
315: (dvoid *)connection.envhp, (dvoid **) &connection.svchp, (ub4)OCI_HTYPE_SVCCTX, 0, 0));
1.1 parser 316: // set attribute server context in the service context
1.49 paf 317: check(connection, "AttrSet server-service", OCIAttrSet(
318: (dvoid *)connection.svchp, (ub4)OCI_HTYPE_SVCCTX,
319: (dvoid *)connection.srvhp, (ub4)0,
320: (ub4)OCI_ATTR_SERVER, (OCIError *)connection.errhp));
1.1 parser 321: // allocate a user context handle
1.49 paf 322: check(connection, "HandleAlloc usrhp", OCIHandleAlloc(
323: (dvoid *)connection.envhp, (dvoid **)&connection.usrhp, (ub4)OCI_HTYPE_SESSION, 0, 0));
1.1 parser 324: // set 'user' name
1.49 paf 325: check(connection, "AttrSet user-session", OCIAttrSet(
326: (dvoid *)connection.usrhp, (ub4)OCI_HTYPE_SESSION,
1.1 parser 327: (dvoid *)user, (ub4)strlen(user),
1.49 paf 328: OCI_ATTR_USERNAME, connection.errhp));
1.1 parser 329: // set 'pwd' password
1.49 paf 330: check(connection, "AttrSet pwd-session", OCIAttrSet(
331: (dvoid *)connection.usrhp, (ub4)OCI_HTYPE_SESSION,
1.1 parser 332: (dvoid *)pwd, (ub4)strlen(pwd),
1.49 paf 333: OCI_ATTR_PASSWORD, connection.errhp));
1.1 parser 334: // Authenticate a user
1.49 paf 335: check(connection, "SessionBegin", OCISessionBegin(
336: connection.svchp, connection.errhp, connection.usrhp,
1.1 parser 337: OCI_CRED_RDBMS, OCI_DEFAULT));
338: // remember connection in session
1.49 paf 339: check(connection, "AttrSet service-session", OCIAttrSet(
340: (dvoid *)connection.svchp, (ub4)OCI_HTYPE_SVCCTX,
341: (dvoid *)connection.usrhp, (ub4)0,
342: OCI_ATTR_SESSION, connection.errhp));
1.1 parser 343: }
1.49 paf 344: void disconnect(void *aconnection) {
345: Connection& connection=*static_cast<Connection *>(aconnection);
1.47 paf 346:
1.58 paf 347: // free fetch buffers. leave that to GC [no such services func. yet?]
348: /*
1.47 paf 349: for(int i=0; i<MAX_COLS; i++) {
1.49 paf 350: if(void* fetch_buffer=connection.fetch_buffers[i])
1.58 paf 351: connection.services->free(fetch_buffer);
1.47 paf 352: else
353: break;
1.58 paf 354: }
355: */
1.47 paf 356:
1.1 parser 357: // Terminate a user session
358: OCISessionEnd(
1.49 paf 359: connection.svchp, connection.errhp, connection.usrhp, (ub4)OCI_DEFAULT);
1.1 parser 360: // Detach from a server; uninitialize server context handle
361: OCIServerDetach(
1.49 paf 362: connection.srvhp, connection.errhp, (ub4)OCI_DEFAULT);
1.1 parser 363: // Free a previously allocated handles
364: /*
365: oci will free them up as belonging to env
366: OCIHandleFree(
1.49 paf 367: (dvoid *)connection.srvhp, (ub4)OCI_HTYPE_SERVER);
1.1 parser 368: OCIHandleFree(
1.49 paf 369: (dvoid *)connection.svchp, (ub4)OCI_HTYPE_SVCCTX);
1.1 parser 370: OCIHandleFree(
1.49 paf 371: (dvoid *)connection.errhp, (ub4)OCI_HTYPE_ERROR);
1.1 parser 372: */
373: OCIHandleFree(
1.49 paf 374: (dvoid *)connection.envhp, (ub4)OCI_HTYPE_ENV);
1.1 parser 375:
1.58 paf 376: // free connection. leave that to GC [no such services func. yet?]
377: // connection.services->free(&connection);
1.1 parser 378: }
1.49 paf 379: void commit(void *aconnection) {
380: Connection& connection=*static_cast<Connection *>(aconnection);
381: if(setjmp(connection.mark))
382: connection.services->_throw(connection.error);
1.1 parser 383:
1.49 paf 384: check(connection, "commit", OCITransCommit(connection.svchp, connection.errhp, 0));
1.1 parser 385: }
1.49 paf 386: void rollback(void *aconnection) {
387: Connection& connection=*static_cast<Connection *>(aconnection);
388: if(setjmp(connection.mark))
389: connection.services->_throw(connection.error);
1.1 parser 390:
1.42 paf 391: // sometimes rollback is done in context when this yields error which masks previous error
392: // consider consequent errors not very important to report, reporting first one
1.49 paf 393: /*check(connection, "rollback", */OCITransRollback(connection.svchp, connection.errhp, 0)/*)*/;
1.1 parser 394: }
395:
1.45 paf 396: bool ping(void* /*connection*/) {
1.1 parser 397: // maybe OCIServerVersion?
1.4 paf 398: // select 0 from dual
1.1 parser 399: return true;
400: }
401:
1.49 paf 402: const char* quote(void *aconnection,
1.42 paf 403: const char *from, unsigned int length)
404: {
1.49 paf 405: Connection& connection=*static_cast<Connection *>(aconnection);
406: char *result=(char*)connection.services->malloc_atomic(length*2+1);
1.32 paf 407: char *to=result;
408: while(length--) {
409: switch(*from) {
410: case '\'': // "'" -> "''"
1.35 paf 411: *to++='\'';
1.32 paf 412: break;
1.1 parser 413: }
1.32 paf 414: *to++=*from++;
415: }
416: *to=0;
417: return result;
1.1 parser 418: }
1.49 paf 419: void query(void *aconnection,
1.1 parser 420: const char *astatement, unsigned long offset, unsigned long limit,
1.42 paf 421: SQL_Driver_query_event_handlers& handlers)
422: {
1.49 paf 423: Connection& connection=*static_cast<Connection *>(aconnection);
1.54 paf 424: const char* cstrClientCharset=connection.options.cstrClientCharset;
1.1 parser 425: OracleSQL_query_lobs lobs={{0}, 0};
426: OCIStmt *stmthp=0;
427:
1.49 paf 428: SQL_Driver_services& services=*connection.services;
1.42 paf 429:
430: // transcode from $request:charset to connect-string?client_charset
1.54 paf 431: if(cstrClientCharset) {
1.53 paf 432: size_t transcoded_statement_size;
1.42 paf 433: services.transcode(astatement, strlen(astatement),
434: astatement, transcoded_statement_size,
435: services.request_charset(),
436: cstrClientCharset);
1.53 paf 437: }
1.42 paf 438:
1.1 parser 439: bool failed=false;
1.49 paf 440: if(setjmp(connection.mark)) {
1.1 parser 441: failed=true;
442: goto cleanup;
443: } else {
1.49 paf 444: const char *statement=preprocess_statement(connection, astatement, lobs);
1.1 parser 445:
1.49 paf 446: check(connection, "HandleAlloc STMT", OCIHandleAlloc(
447: (dvoid *)connection.envhp, (dvoid **) &stmthp, (ub4)OCI_HTYPE_STMT, 0, 0));
448: check(connection, "syntax",
449: OCIStmtPrepare(stmthp, connection.errhp, (unsigned char *)statement,
1.1 parser 450: (ub4)strlen((char *)statement),
451: (ub4)OCI_NTV_SYNTAX, (ub4)OCI_DEFAULT));
452: {
453: for(int i=0; i<lobs.count; i++) {
1.57 paf 454: OracleSQL_query_lobs::Item &item=lobs.items[i];
1.49 paf 455: check(connection, "alloc output var desc", OCIDescriptorAlloc(
1.57 paf 456: (dvoid *)connection.envhp, (dvoid **)&item.locator, (ub4)OCI_DTYPE_LOB, 0, 0));
1.1 parser 457:
1.59 ! paf 458: char placeholder_buf[MAX_STRING];
! 459: sb4 placeh_len=snprintf(placeholder_buf, sizeof(placeholder_buf),
! 460: ":%.*s", item.name_size, item.name_ptr);
! 461: check(connection, "bind lob", OCIBindByName(stmthp,
1.57 paf 462: &item.bind, connection.errhp,
1.59 ! paf 463: (text*)placeholder_buf, placeh_len,
1.57 paf 464: (dvoid *)&item.locator,
465: (sword)sizeof (item.locator), SQLT_CLOB, (dvoid *)0,
1.1 parser 466: (ub2 *)0, (ub2 *)0, (ub4)0, (ub4 *)0, OCI_DATA_AT_EXEC));
467:
1.57 paf 468: item.rows.count=0;
469: item.connection=&connection;
1.49 paf 470: check(connection, "bind dynamic", OCIBindDynamic(
1.57 paf 471: item.bind, connection.errhp,
472: (dvoid *) &item, cbf_no_data,
473: (dvoid *) &item, cbf_get_data));
1.1 parser 474: }
475: }
476:
1.49 paf 477: execute_prepared(connection,
1.26 paf 478: statement, stmthp, lobs,
479: offset, limit, handlers);
1.1 parser 480: }
481: cleanup: // no check call after this point!
482: {
483: for(int i=0; i<lobs.count; i++) {
484: /* free var locator */
485: if(OCILobLocator *locator=lobs.items[i].locator)
486: OCIDescriptorFree((dvoid *)locator, (ub4)OCI_DTYPE_LOB);
487:
488: /* free rows descriptors */
489: OracleSQL_query_lobs::return_rows &rows=lobs.items[i].rows;
490: for(int r=0; r<rows.count; r++)
491: OCIDescriptorFree((dvoid *)rows.row[r].locator, (ub4)OCI_DTYPE_LOB);
492: }
493: }
494: if(stmthp)
495: OCIHandleFree((dvoid *)stmthp, (ub4)OCI_HTYPE_STMT);
496:
1.26 paf 497: if(failed) {
1.49 paf 498: if(connection.sql_error.defined())
499: services._throw(connection.sql_error);
500: services._throw(connection.error);
1.26 paf 501: }
1.1 parser 502: }
503:
504: private: // private funcs
505:
1.49 paf 506: const char *preprocess_statement(Connection& connection,
1.1 parser 507: const char *astatement, OracleSQL_query_lobs &lobs) {
508: size_t statement_size=strlen(astatement);
1.49 paf 509: SQL_Driver_services& services=*connection.services;
1.1 parser 510:
1.32 paf 511: char *result=(char *)services.malloc_atomic(statement_size
1.1 parser 512: +MAX_STRING // in case of short 'strings'
513: +11/* returning */+6/* into */+(MAX_LOB_NAME_LENGTH+2/*:, */)*2/*ret into*/*MAX_IN_LOBS
514: +1);
515: const char *o=astatement;
516:
517: // /**xxx**/'literal' -> EMPTY_CLOB_FUNC_CALL
518: char *n=result;
519: while(*o) {
520: if(
521: o[0]=='/' &&
522: o[1]=='*' &&
523: o[2]=='*') { // name start
1.34 paf 524: const char* saved_o=o;
1.1 parser 525: o+=3;
526: const char *name_begin=o;
527: while(*o)
528: if(
529: o[0]=='*' &&
530: o[1]=='*' &&
531: o[2]=='/' &&
532: o[3]=='\'') { // name end
1.34 paf 533: saved_o=0; // found, marking that
1.1 parser 534: const char *name_end=o;
535: o+=4;
536: OracleSQL_query_lobs::Item &item=lobs.items[lobs.count++];
537: item.name_ptr=name_begin; item.name_size=name_end-name_begin;
1.32 paf 538: item.data_ptr=(char *)services.malloc_atomic(statement_size/*max*/); item.data_size=0;
1.1 parser 539:
540: const char *start=o;
541: bool escaped=false;
542: while(*o && !(o[0]=='\'' && o[1]!='\'' && !escaped)) {
1.14 paf 543: escaped=o[0]=='\'' && o[1]=='\'';
1.1 parser 544: if(escaped) {
545: // write pending, skip "\" or "'"
546: if(size_t size=o-start) {
547: memcpy(item.data_ptr+item.data_size, start, size);
548: item.data_size+=size;
549: }
550: start=++o;
551: } else
552: o++;
553: }
554: if(size_t size=o-start) {
555: memcpy(item.data_ptr+item.data_size, start, size);
556: item.data_size+=size;
557: }
558: if(*o)
559: o++; // skip "'"
560:
561: n+=sprintf(n, EMPTY_CLOB_FUNC_CALL);
562: break;
563: } else
564: o++; // /**skip**/'xxx'
1.34 paf 565: if(saved_o) {
566: o=saved_o;
567: *n++=*o++;
568: }
1.1 parser 569: } else
570: *n++=*o++;
571: }
572: *n=0;
573:
574: if(lobs.count) {
575: int i;
576: n+=sprintf(n, " returning ");
577: for(i=0; i<lobs.count; i++) {
578: if(i)
579: *n++=',';
580: n+=sprintf(n, "%.*s", lobs.items[i].name_size, lobs.items[i].name_ptr);
581: }
582: n+=sprintf(n, " into ");
583: for(i=0; i<lobs.count; i++) {
584: if(i)
1.41 paf 585: *n++=',';
1.1 parser 586: n+=sprintf(n, ":%.*s", lobs.items[i].name_size, lobs.items[i].name_ptr);
587: }
588: }
589:
590: return result;
591: }
592:
593: void execute_prepared(
1.49 paf 594: Connection& connection,
1.1 parser 595: const char *statement, OCIStmt *stmthp, OracleSQL_query_lobs &lobs,
596: unsigned long offset, unsigned long limit,
597: SQL_Driver_query_event_handlers& handlers) {
598:
599: ub2 stmt_type=0; // UNKNOWN
600: /*
601: //gpfs on sun. paf 000818
602: //Zanyway, this is needed before.
1.49 paf 603: check(connection, "get stmt type", OCIAttrGet(
1.1 parser 604: (dvoid *)stmthp, (ub4)OCI_HTYPE_STMT, (ub1 *)&stmt_type,
1.49 paf 605: (ub4 *)0, OCI_ATTR_STMT_TYPE, connection.errhp));
1.1 parser 606: */
1.16 paf 607:
1.17 paf 608: while(isspace(*statement))
1.16 paf 609: statement++;
1.1 parser 610: if(strncasecmp(statement, "select", 6)==0)
611: stmt_type=OCI_STMT_SELECT;
612: else if(strncasecmp(statement, "insert", 6)==0)
613: stmt_type=OCI_STMT_INSERT;
614: else if(strncasecmp(statement, "update", 6)==0)
615: stmt_type=OCI_STMT_UPDATE;
616:
1.49 paf 617: sword status=OCIStmtExecute(connection.svchp, stmthp, connection.errhp,
1.1 parser 618: (ub4)stmt_type==OCI_STMT_SELECT?0:1, (ub4)0,
619: (OCISnapshot *)NULL,
620: (OCISnapshot *)NULL, (ub4)OCI_DEFAULT);
621:
622: if(status!=OCI_NO_DATA)
1.49 paf 623: check(connection, "execute", status);
1.1 parser 624:
625: {
626: for(int i=0; i<lobs.count; i++)
627: if(ub4 bytes_to_write=lobs.items[i].data_size) {
628: OracleSQL_query_lobs::return_rows *rows=&lobs.items[i].rows;
629: for(int r=0; r<rows->count; r++) {
630: OCILobLocator *locator=rows->row[r].locator;
1.49 paf 631: check(connection, "lobwrite", OCILobWrite (
632: connection.svchp, connection.errhp,
1.1 parser 633: locator, &bytes_to_write, 1,
634: (dvoid *)lobs.items[i].data_ptr, (ub4)bytes_to_write, OCI_ONE_PIECE,
635: (dvoid *)0, 0, (ub2)0,
636: (ub1) SQLCS_IMPLICIT));
637: }
638: }
639: }
640:
641: switch(stmt_type) {
642: case OCI_STMT_SELECT:
1.49 paf 643: fetch_table(connection,
1.1 parser 644: stmthp, offset, limit,
645: handlers);
646: break;
647: default:
648: /*
649: case OCI_STMT_INSERT:
650: case OCI_STMT_UPDATE:
651: */
652: break;
653: }
654: }
655:
1.49 paf 656: void fetch_table(Connection& connection,
1.1 parser 657: OCIStmt *stmthp, unsigned long offset, unsigned long limit,
1.42 paf 658: SQL_Driver_query_event_handlers& handlers)
659: {
1.54 paf 660: const char* cstrClientCharset=connection.options.cstrClientCharset;
1.49 paf 661: SQL_Driver_services& services=*connection.services;
1.12 paf 662:
1.10 paf 663: ub4 prefetch_rows=100;
1.49 paf 664: check(connection, "AttrSet prefetch-rows", OCIAttrSet(
1.9 paf 665: (dvoid *)stmthp, (ub4)OCI_HTYPE_STMT,
666: (dvoid *)&prefetch_rows, (ub4)0,
1.49 paf 667: (ub4)OCI_ATTR_PREFETCH_ROWS, (OCIError *)connection.errhp));
1.9 paf 668:
1.20 paf 669: ub4 prefetch_mem_size=100*0x400;
1.49 paf 670: check(connection, "AttrSet prefetch-memory", OCIAttrSet(
1.9 paf 671: (dvoid *)stmthp, (ub4)OCI_HTYPE_STMT,
672: (dvoid *)&prefetch_mem_size, (ub4)0,
1.49 paf 673: (ub4)OCI_ATTR_PREFETCH_MEMORY, (OCIError *)connection.errhp));
1.1 parser 674:
675: OCIParam *mypard;
676: ub2 dtype;
1.51 paf 677: const char* col_name;
1.1 parser 678:
1.40 paf 679: struct Col {
1.1 parser 680: ub2 type;
681: char *str;
682: OCILobLocator *var;
683: OCIDefine *def;
684: sb2 indicator;
685: } cols[MAX_COLS]={0};
686: int column_count=0;
687:
688: bool failed=false;
1.49 paf 689: jmp_buf saved_mark; memcpy(saved_mark, connection.mark, sizeof(jmp_buf));
690: if(setjmp(connection.mark)) {
1.1 parser 691: failed=true;
692: goto cleanup;
693: } else {
1.27 paf 694: // idea of preincrementing is that at error time all handles would free up
695: while(++column_count<=MAX_COLS) {
696: /* get next descriptor, if there is one */
1.49 paf 697: if(OCIParamGet(stmthp, OCI_HTYPE_STMT, connection.errhp, (void **)&mypard,
1.27 paf 698: (ub4) column_count)!=OCI_SUCCESS) {
699: --column_count;
700: break;
701: }
702:
703: /* Retrieve the data type attribute */
1.49 paf 704: check(connection, "get type", OCIAttrGet(
1.27 paf 705: (dvoid*) mypard, (ub4)OCI_DTYPE_PARAM,
706: (dvoid*) &dtype, (ub4 *)0, (ub4)OCI_ATTR_DATA_TYPE,
1.49 paf 707: (OCIError *)connection.errhp));
1.27 paf 708:
709: /* Retrieve the column name attribute */
710: ub4 col_name_len;
1.49 paf 711: check(connection, "get name", OCIAttrGet(
1.27 paf 712: (dvoid*) mypard, (ub4)OCI_DTYPE_PARAM,
713: (dvoid**) &col_name, (ub4 *) &col_name_len, (ub4)OCI_ATTR_NAME,
1.49 paf 714: (OCIError *)connection.errhp));
1.51 paf 715: // transcode to $request:charset from connect-string?client_charset
1.54 paf 716: if(cstrClientCharset) {
1.51 paf 717: services.transcode(col_name, col_name_len,
718: col_name, col_name_len,
719: cstrClientCharset,
720: services.request_charset());
721: }
722:
1.40 paf 723: Col& col=cols[column_count-1];
1.27 paf 724: {
1.38 paf 725: size_t length=(size_t)col_name_len;
726: char *ptr=(char *)services.malloc_atomic(length+1);
1.49 paf 727: if( connection.options.bLowerCaseColumnNames )
1.55 paf 728: tolower_str(ptr, col_name, length);
1.39 paf 729: else
730: memcpy(ptr, col_name, length);
1.38 paf 731: ptr[length]=0;
1.49 paf 732: check(connection, handlers.add_column(connection.sql_error, ptr, length));
1.27 paf 733: }
734:
735: ub2 coerce_type=dtype;
736: sb4 size=0;
737: void *ptr;
738:
739: switch(dtype) {
740: case SQLT_CLOB:
1.1 parser 741: {
1.49 paf 742: check(connection, "alloc output var desc", OCIDescriptorAlloc(
743: (dvoid *)connection.envhp, (dvoid **)(ptr=&col.var),
1.27 paf 744: (ub4)OCI_DTYPE_LOB,
745: 0, (dvoid **)0));
746:
747: size=0;
1.1 parser 748: break;
749: }
1.27 paf 750: default:
751: coerce_type=SQLT_STR;
1.49 paf 752: char*& buf=connection.fetch_buffers[column_count-1];
1.46 paf 753: ptr=buf; // get cached buffer
754: if(!ptr) // allocate if needed, caching it
1.58 paf 755: ptr=buf=(char *)services.malloc_atomic(MAX_OUT_STRING_LENGTH+1/*terminator*/);
1.46 paf 756: col.str=(char*)ptr;
1.27 paf 757: size=MAX_OUT_STRING_LENGTH;
758: break;
1.1 parser 759: }
760:
1.40 paf 761: col.type=coerce_type;
1.1 parser 762:
1.48 paf 763: // http://i/docs/oracle/server.804/a58234/oci_func.htm#449680
764: // this call implicitly allocates the define handle
765: // http://sunsite.eunnet.net/documentation/oracle.8.0.4/server.804/a58234/basics.htm
766: // when a statement handle is freed, any bind and define handles associated with it
767: // are also freed
1.49 paf 768: col.def=0; check(connection, "DefineByPos", OCIDefineByPos(
769: stmthp, &col.def, connection.errhp,
1.27 paf 770: column_count, (ub1 *) ptr, size,
1.40 paf 771: coerce_type, (dvoid *) &col.indicator,
1.27 paf 772: (ub2 *)0, (ub2 *)0, OCI_DEFAULT));
773: }
774:
1.49 paf 775: check(connection, handlers.before_rows(connection.sql_error));
1.27 paf 776:
777: for(unsigned long row=0; !limit||row<offset+limit; row++) {
1.49 paf 778: sword status=OCIStmtFetch(stmthp, connection.errhp, (ub4)1, (ub4)OCI_FETCH_NEXT,
1.27 paf 779: (ub4)OCI_DEFAULT);
780: if(status==OCI_NO_DATA)
781: break;
1.49 paf 782: check(connection, "fetch", status);
1.3 paf 783:
1.27 paf 784: if(row>=offset) {
1.49 paf 785: check(connection, handlers.add_row(connection.sql_error));
1.27 paf 786: for(int i=0; i<column_count; i++) {
1.37 paf 787: size_t length=0;
1.42 paf 788: char* strm=0;
1.27 paf 789: if(!cols[i].indicator) // not NULL
790: switch(cols[i].type) {
791: case SQLT_CLOB:
792: {
793: ub4 offset=1;
794: OCILobLocator *var=(OCILobLocator *)cols[i].var;
1.42 paf 795: size_t read_size=0;
1.45 paf 796: strm=(char*)services.malloc_atomic(1/*for terminator*/); // set type of memory block
1.42 paf 797: do {
798: char buf[MAX_STRING*10];
1.45 paf 799: ub4 amtp=0/*to be read in stream mode*/;
800: // http://i/docs/oracle/server.804/a58234/oci_func.htm#427818
1.49 paf 801: status=OCILobRead(connection.svchp, connection.errhp,
1.42 paf 802: var, &amtp, offset, (dvoid *)buf,
803: sizeof(buf),
804: (dvoid *)0, 0,
805: (ub2)0, (ub1)SQLCS_IMPLICIT);
806: if(status!=OCI_SUCCESS && status!=OCI_NEED_DATA)
1.49 paf 807: check(connection, "lobread", status);
1.42 paf 808:
1.45 paf 809: strm=(char*)services.realloc(strm, read_size+amtp+1/*for termintator*/);
1.42 paf 810: memcpy(strm+read_size, buf, amtp);
811: read_size+=amtp;
812: offset+=amtp;
813: } while(status==OCI_NEED_DATA);
814:
815: length=(size_t)read_size;
816: strm[length]=0;
1.1 parser 817: break;
818: }
1.27 paf 819: default:
1.32 paf 820: if(const char *value=cols[i].str) {
1.37 paf 821: length=strlen(value);
1.42 paf 822: strm=(char*)services.malloc_atomic(length+1);
823: memcpy(strm, value, length+1);
1.27 paf 824: } else {
1.37 paf 825: length=0;
1.42 paf 826: strm=0;
1.27 paf 827: }
828: break;
829: }
1.42 paf 830:
831: const char* str=strm;
832: if(str && length)
833: {
834: // transcode to $request:charset from connect-string?client_charset
1.54 paf 835: if(cstrClientCharset)
1.42 paf 836: services.transcode(str, length,
1.53 paf 837: str, length,
1.42 paf 838: cstrClientCharset,
839: services.request_charset());
840: }
841:
1.49 paf 842: check(connection, handlers.add_row_cell(connection.sql_error, str, length));
1.1 parser 843: }
844: }
845: }
846: }
847:
848: cleanup: // no check call after this point!
849: for(int i=0; i<column_count; i++) {
850: switch(cols[i].type) {
851: case SQLT_CLOB:
852: /* free var locator */
853: OCIDescriptorFree((dvoid *) cols[i].var, (ub4)OCI_DTYPE_LOB);
854: break;
855: default:
856: break;
857: }
858: }
859:
860: if(failed) // need rethrow?
861: longjmp(saved_mark, 1);
862: }
863:
864: private: // conn client library funcs
865:
1.49 paf 866: friend void check(Connection& connection, const char *step, sword status);
1.1 parser 867: friend sb4 cbf_get_data(dvoid *ctxp,
868: OCIBind *bindp,
869: ub4 iter, ub4 index,
870: dvoid **bufpp,
871: ub4 **alenp,
872: ub1 *piecep,
873: dvoid **indpp,
874: ub2 **rcodepp);
875:
876:
877: #define OCI_DECL(name, params) \
878: typedef sword (*t_OCI##name)params; t_OCI##name OCI##name
879:
880: OCI_DECL(Initialize, (ub4 mode, dvoid *ctxp,
881: dvoid * (*malocfp)(dvoid *ctxp, size_t size),
882: dvoid * (*ralocfp)(dvoid *ctxp, dvoid *memptr, size_t newsize),
883: void (*mfreefp)(dvoid *ctxp, dvoid *memptr) ));
884:
885: OCI_DECL(EnvInit, (OCIEnv **envp, ub4 mode,
886: size_t xtramem_sz, dvoid **usrmempp));
887:
888: OCI_DECL(AttrGet, (CONST dvoid *trgthndlp, ub4 trghndltyp,
889: dvoid *attributep, ub4 *sizep, ub4 attrtype,
890: OCIError *errhp));
891:
892: OCI_DECL(AttrSet, (dvoid *trgthndlp, ub4 trghndltyp, dvoid *attributep,
893: ub4 size, ub4 attrtype, OCIError *errhp));
894:
895: OCI_DECL(BindByPos, (OCIStmt *stmtp, OCIBind **bindp, OCIError *errhp,
896: ub4 position, dvoid *valuep, sb4 value_sz,
897: ub2 dty, dvoid *indp, ub2 *alenp, ub2 *rcodep,
898: ub4 maxarr_len, ub4 *curelep, ub4 mode));
899:
1.59 ! paf 900: OCI_DECL(BindByName, (OCIStmt *stmtp, OCIBind **bindp, OCIError *errhp,
! 901: text* placeholder, sb4 placeh_len, dvoid *valuep, sb4 value_sz,
! 902: ub2 dty, dvoid *indp, ub2 *alenp, ub2 *rcodep,
! 903: ub4 maxarr_len, ub4 *curelep, ub4 mode));
! 904:
1.1 parser 905: OCI_DECL(BindDynamic, (OCIBind *bindp, OCIError *errhp, dvoid *ictxp,
906: OCICallbackInBind icbfp, dvoid *octxp,
907: OCICallbackOutBind ocbfp));
908:
909: OCI_DECL(DefineByPos, (OCIStmt *stmtp, OCIDefine **defnp, OCIError *errhp,
910: ub4 position, dvoid *valuep, sb4 value_sz, ub2 dty,
911: dvoid *indp, ub2 *rlenp, ub2 *rcodep, ub4 mode));
912:
913: OCI_DECL(DescriptorAlloc, (CONST dvoid *parenth, dvoid **descpp,
914: CONST ub4 type, CONST size_t xtramem_sz,
915: dvoid **usrmempp));
916:
917: OCI_DECL(DescriptorFree, (dvoid *descp, CONST ub4 type));
918:
919:
920: OCI_DECL(ErrorGet, (dvoid *hndlp, ub4 recordno, OraText *sqlstate,
921: sb4 *errcodep, OraText *bufp, ub4 bufsiz, ub4 type));
922:
923: OCI_DECL(HandleAlloc, (CONST dvoid *parenth, dvoid **hndlpp, CONST ub4 type,
924: CONST size_t xtramem_sz, dvoid **usrmempp));
925:
926: OCI_DECL(HandleFree, (dvoid *hndlp, CONST ub4 type));
927:
928: OCI_DECL(LobGetLength, (OCISvcCtx *svchp, OCIError *errhp,
929: OCILobLocator *locp,
930: ub4 *lenp));
931:
932: OCI_DECL(LobRead, (OCISvcCtx *svchp, OCIError *errhp, OCILobLocator *locp,
933: ub4 *amtp, ub4 offset, dvoid *bufp, ub4 bufl,
934: dvoid *ctxp, sb4 (*cbfp)(dvoid *ctxp,
935: CONST dvoid *bufp,
936: ub4 len,
937: ub1 piece),
938: ub2 csid, ub1 csfrm));
939:
940: OCI_DECL(LobWrite, (OCISvcCtx *svchp, OCIError *errhp, OCILobLocator *locp,
941: ub4 *amtp, ub4 offset, dvoid *bufp, ub4 buflen,
942: ub1 piece, dvoid *ctxp,
943: sb4 (*cbfp)(dvoid *ctxp,
944: dvoid *bufp,
945: ub4 *len,
946: ub1 *piece),
947: ub2 csid, ub1 csfrm));
948:
949: OCI_DECL(ParamGet, (CONST dvoid *hndlp, ub4 htype, OCIError *errhp,
950: dvoid **parmdpp, ub4 pos));
951:
952: OCI_DECL(ServerAttach, (OCIServer *srvhp, OCIError *errhp,
953: CONST OraText *dblink, sb4 dblink_len, ub4 mode));
954:
955: OCI_DECL(ServerDetach, (OCIServer *srvhp, OCIError *errhp, ub4 mode));
956:
957: OCI_DECL(SessionBegin, (OCISvcCtx *svchp, OCIError *errhp, OCISession *usrhp,
958: ub4 credt, ub4 mode));
959:
960: OCI_DECL(SessionEnd, (OCISvcCtx *svchp, OCIError *errhp, OCISession *usrhp,
961: ub4 mode));
962:
963: OCI_DECL(StmtExecute, (OCISvcCtx *svchp, OCIStmt *stmtp, OCIError *errhp,
964: ub4 iters, ub4 rowoff, CONST OCISnapshot *snap_in,
965: OCISnapshot *snap_out, ub4 mode));
966:
967: OCI_DECL(StmtFetch, (OCIStmt *stmtp, OCIError *errhp, ub4 nrows,
968: ub2 orientation, ub4 mode));
969:
970: OCI_DECL(StmtPrepare, (OCIStmt *stmtp, OCIError *errhp, CONST OraText *stmt,
971: ub4 stmt_len, ub4 language, ub4 mode));
972:
973: OCI_DECL(TransCommit, (OCISvcCtx *svchp, OCIError *errhp, ub4 flags));
974:
975: OCI_DECL(TransRollback, (OCISvcCtx *svchp, OCIError *errhp, ub4 flags));
976:
977: private: // conn client library funcs linking
978:
979: const char *dlink(const char *dlopen_file_spec) {
980: if(lt_dlinit())
981: return lt_dlerror();
982: lt_dlhandle handle=lt_dlopen(dlopen_file_spec);
983: if(!handle)
984: return lt_dlerror(); //"can not open the dynamic link module";
985:
986: #define DSLINK(name, action) \
987: name=(t_##name)lt_dlsym(handle, #name); \
988: if(!name) \
989: action;
990:
991: #define OCI_LINK(name) DSLINK(OCI##name, return "function OCI" #name " was not found")
992:
993: OCI_LINK(Initialize);
994: OCI_LINK(EnvInit);
995: OCI_LINK(AttrGet); OCI_LINK(AttrSet);
1.59 ! paf 996: OCI_LINK(BindByPos); OCI_LINK(BindByName); OCI_LINK(BindDynamic);
1.1 parser 997: OCI_LINK(DefineByPos);
998: OCI_LINK(DescriptorAlloc); OCI_LINK(DescriptorFree);
999: OCI_LINK(ErrorGet);
1000: OCI_LINK(HandleAlloc); OCI_LINK(HandleFree);
1001: OCI_LINK(LobGetLength);
1002: OCI_LINK(LobRead); OCI_LINK(LobWrite);
1003: OCI_LINK(ParamGet);
1004: OCI_LINK(ServerAttach); OCI_LINK(ServerDetach);
1005: OCI_LINK(SessionBegin); OCI_LINK(SessionEnd);
1006: OCI_LINK(StmtExecute); OCI_LINK(StmtFetch); OCI_LINK(StmtPrepare);
1007: OCI_LINK(TransCommit); OCI_LINK(TransRollback);
1008:
1009: return 0;
1010: }
1011:
1012: } *OracleSQL_driver;
1013:
1.49 paf 1014: void check(Connection& connection, const char *step, sword status) {
1.1 parser 1015:
1016: const char *msg;
1017: char reason[MAX_STRING/2];
1018:
1019: switch (status) {
1.22 paf 1020: case OCI_SUCCESS: // hurrah
1021: case OCI_SUCCESS_WITH_INFO: // ignoring. example: count(column) when column contains NULLs,
1022: // count() not counting them and gives that status
1023: return;
1.1 parser 1024: case OCI_ERROR:
1025: {
1.45 paf 1026: sb4 errcode;
1.49 paf 1027: if(OracleSQL_driver->OCIErrorGet((dvoid *)connection.errhp, (ub4)1, (text *)NULL, &errcode,
1.45 paf 1028: (text *)reason, (ub4)sizeof(reason), OCI_HTYPE_ERROR)==OCI_SUCCESS) {
1029: msg=reason;
1030:
1031: // transcode to $request:charset from connect-string?client_charset
1.49 paf 1032: if(const char* cstrClientCharset=connection.options.cstrClientCharset) {
1.45 paf 1033: if(msg) {
1034: if(size_t msg_length=strlen(msg)) {
1.49 paf 1035: connection.services->transcode(msg, msg_length,
1.45 paf 1036: msg, msg_length,
1037: cstrClientCharset,
1.49 paf 1038: connection.services->request_charset());
1.45 paf 1039: }
1.42 paf 1040: }
1041: }
1.45 paf 1042: } else
1043: msg="[can not get error description]";
1044: break;
1.1 parser 1045: }
1046: case OCI_NEED_DATA:
1047: msg="NEED_DATA"; break;
1048: case OCI_NO_DATA:
1049: msg="NODATA"; break;
1050: case OCI_INVALID_HANDLE:
1051: msg="INVALID_HANDLE"; break;
1052: case OCI_STILL_EXECUTING:
1053: msg="STILL_EXECUTE"; break;
1054: case OCI_CONTINUE:
1055: msg="CONTINUE"; break;
1056: default:
1057: msg="unknown"; break;
1058: }
1059:
1.49 paf 1060: snprintf(connection.error, sizeof(connection.error), "%s (%s, %d)",
1.22 paf 1061: msg, step, (int)status);
1.49 paf 1062: longjmp(connection.mark, 1);
1.1 parser 1063: }
1064:
1.49 paf 1065: void check(Connection& connection, bool error) {
1.27 paf 1066: if(error)
1.49 paf 1067: longjmp(connection.mark, 1);
1.27 paf 1068: }
1.1 parser 1069:
1070: /* ----------------------------------------------------------------- */
1071: /* Intbind callback that does not do any data input. */
1072: /* ----------------------------------------------------------------- */
1073: static sb4 cbf_no_data(
1.45 paf 1074: dvoid* /*ctxp*/,
1075: OCIBind* /*bindp*/,
1076: ub4 /*iter*/, ub4 /*index*/,
1.1 parser 1077: dvoid **bufpp,
1078: ub4 *alenpp,
1079: ub1 *piecep,
1080: dvoid **indpp) {
1081: *bufpp=(dvoid *)0;
1082: *alenpp=0;
1083: static sb2 null_ind=-1;
1084: *indpp=(dvoid *) &null_ind;
1085: *piecep=OCI_ONE_PIECE;
1086:
1087: return OCI_CONTINUE;
1088: }
1089:
1090: /* ----------------------------------------------------------------- */
1091: /* Outbind callback for returning data. */
1092: /* ----------------------------------------------------------------- */
1093: static sb4 cbf_get_data(dvoid *ctxp,
1094: OCIBind *bindp,
1.45 paf 1095: ub4 /*iter*/, ub4 index,
1.1 parser 1096: dvoid **bufpp,
1097: ub4 **alenp,
1098: ub1 *piecep,
1099: dvoid **indpp,
1100: ub2 **rcodepp) {
1.57 paf 1101: OracleSQL_query_lobs::Item& context=*static_cast<OracleSQL_query_lobs::Item*>(ctxp);
1.1 parser 1102:
1103: if(index==0) {
1104: static ub4 rows;
1.49 paf 1105: check(*context.connection, "AttrGet cbf_get_data ROWS_RETURNED",
1.1 parser 1106: OracleSQL_driver->OCIAttrGet(
1107: (CONST dvoid *) bindp, OCI_HTYPE_BIND, (dvoid *)&rows,
1.49 paf 1108: (ub4 *)sizeof(ub2), OCI_ATTR_ROWS_RETURNED, context.connection->errhp)) ;
1.57 paf 1109: context.rows.count=(ub2)rows;
1110: context.rows.row=(OracleSQL_query_lobs::return_rows::return_row *)
1.49 paf 1111: context.connection->services->malloc_atomic(sizeof(OracleSQL_query_lobs::return_rows::return_row)*rows);
1.1 parser 1112: }
1113:
1.57 paf 1114: OracleSQL_query_lobs::return_rows::return_row &var=context.rows.row[index];
1.1 parser 1115:
1.49 paf 1116: check(*context.connection, "alloc output var desc dynamic", OracleSQL_driver->OCIDescriptorAlloc(
1117: (dvoid *) context.connection->envhp, (dvoid **)&var.locator,
1.1 parser 1118: (ub4)OCI_DTYPE_LOB,
1119: 0, (dvoid **)0));
1120:
1121: *bufpp=var.locator;
1122: *alenp=&var.len;
1123: *indpp=(dvoid *) &var.ind;
1124: *piecep=OCI_ONE_PIECE;
1125: *rcodepp=&var.rcode;
1126:
1127: return OCI_CONTINUE;
1128: }
1129:
1.55 paf 1130: static void tolower_str(char *out, const char *in, size_t size) {
1.38 paf 1131: while(size--)
1.45 paf 1132: *out++=(char)tolower(*in++);
1.1 parser 1133: }
1.55 paf 1134: static void toupper_str(char *out, const char *in, size_t size) {
1.44 paf 1135: while(size--)
1.45 paf 1136: *out++=(char)toupper(*in++);
1.44 paf 1137: }
1138:
1.1 parser 1139:
1140: extern "C" SQL_Driver *SQL_DRIVER_CREATE() {
1141: return OracleSQL_driver=new OracleSQL_Driver();
1142: }