static int dbd_freetds_get_row(apr_pool_t *pool, apr_dbd_results_t *res,
apr_dbd_row_t **rowp, int rownum)
{
RETCODE rv = 0;
apr_dbd_row_t *row = *rowp;
int sequential = ((rownum >= 0) && res->random) ? 0 : 1;
if (row == NULL) {
row = apr_palloc(pool, sizeof(apr_dbd_row_t));
*rowp = row;
row->res = res;
}
/*
else {
if ( sequential ) {
++row->n;
}
else {
row->n = rownum;
}
}
*/
if (sequential) {
rv = dbnextrow(res->proc);
}
else {
rv = (rownum >= 0) ? dbgetrow(res->proc, rownum) : NO_MORE_ROWS;
}
switch (rv) {
case SUCCEED: return 0;
case REG_ROW: return 0;
case NO_MORE_ROWS:
apr_pool_cleanup_run(res->pool, res->proc, clear_result);
*rowp = NULL;
return -1;
case FAIL: return 1;
case BUF_FULL: return 2; /* FIXME */
default: return 3;
}
return 0;
}
static ngx_int_t
ngx_dbd_freetds_row_read(ngx_dbd_t *dbd)
{
ngx_dbd_freetds_ctx_t *ctx;
ngx_log_debug0(NGX_LOG_DEBUG_MYSQL, dbd->log, 0, "dbd freetds row read");
ctx = dbd->ctx;
#if 0
/* dbsetrow: set current row */
/* dbclrbuf */
r = dbfirstrow(dbd->proc);
r = dblastrow(dbd->proc);
r = dbcurrow(dbd->proc);
dbd->err = dbgetrow(dbd->proc, row + 1);
#endif
ctx->err = dbnextrow(ctx->db);
switch (ctx->err) {
case SUCCEED:
case REG_ROW:
ctx->cur_col = 0;
return NGX_OK;
case NO_MORE_ROWS:
return NGX_DONE;
case FAIL:
case BUF_FULL:
/* TODO: case computeid: */
default:
ngx_log_error(NGX_LOG_ALERT, dbd->log, 0,
"dbnextrow() failed (err:%d)", ctx->err);
return NGX_ERROR;
}
}
int
main(int argc, char **argv)
{
LOGINREC *login;
DBPROCESS *dbproc;
int i;
char teststr[1024];
DBINT testint;
set_malloc_options();
read_login_info(argc, argv);
printf("Starting %s\n", argv[0]);
/* Fortify_EnterScope(); */
dbinit();
dberrhandle(syb_err_handler);
dbmsghandle(syb_msg_handler);
printf("About to logon\n");
login = dblogin();
DBSETLPWD(login, PASSWORD);
DBSETLUSER(login, USER);
DBSETLAPP(login, "text_buffer");
DBSETLHOST(login, "ntbox.dntis.ro");
printf("About to open\n");
dbproc = dbopen(login, SERVER);
if (strlen(DATABASE))
dbuse(dbproc, DATABASE);
dbloginfree(login);
#ifdef MICROSOFT_DBLIB
dbsetopt(dbproc, DBBUFFER, "100");
#else
dbsetopt(dbproc, DBBUFFER, "100", 0);
#endif
printf("creating table\n");
sql_cmd(dbproc);
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
printf("insert\n");
sql_cmd(dbproc);
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
sql_cmd(dbproc);
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
printf("select\n");
dbcmd(dbproc, "select * from #dblib order by i");
dbsqlexec(dbproc);
if (dbresults(dbproc) != SUCCEED) {
printf("Was expecting a result set.");
return 1;
}
for (i = 1; i <= dbnumcols(dbproc); i++) {
printf("col %d is %s\n", i, dbcolname(dbproc, i));
}
dbbind(dbproc, 1, INTBIND, 0, (BYTE *) & testint);
dbbind(dbproc, 2, STRINGBIND, 0, (BYTE *) teststr);
if (REG_ROW != dbnextrow(dbproc)) {
fprintf(stderr, "dblib failed for %s:%d\n", __FILE__, __LINE__);
return 1;
}
if (dbdatlen(dbproc, 2) != 6 || 0 != strcmp("ABCDEF", teststr)) {
fprintf(stderr, "Expected |%s|, found |%s|\n", "ABCDEF", teststr);
fprintf(stderr, "dblib failed for %s:%d\n", __FILE__, __LINE__);
return 1;
}
if (REG_ROW != dbnextrow(dbproc)) {
fprintf(stderr, "dblib failed for %s:%d\n", __FILE__, __LINE__);
return 1;
}
if (dbdatlen(dbproc, 2) != 3 || 0 != strcmp("abc", teststr)) {
fprintf(stderr, "Expected |%s|, found |%s|\n", "abc", teststr);
fprintf(stderr, "dblib failed for %s:%d\n", __FILE__, __LINE__);
return 1;
}
/* get again row 1 */
dbgetrow(dbproc, 1);
/* here length and string should be ok */
if (dbdatlen(dbproc, 2) != 6 || 0 != strcmp("ABCDEF", teststr)) {
fprintf(stderr, "Expected |%s|, found |%s|\n", "ABCDEF", teststr);
fprintf(stderr, "dblib failed for %s:%d\n", __FILE__, __LINE__);
return 1;
}
dbgetrow(dbproc, 2);
if (dbdatlen(dbproc, 2) != 3 || 0 != strcmp("abc", teststr)) {
fprintf(stderr, "Expected |%s|, found |%s|\n", "abc", teststr);
fprintf(stderr, "dblib failed for %s:%d\n", __FILE__, __LINE__);
return 1;
}
dbexit();
printf("%s %s\n", __FILE__, (0 ? "failed!" : "OK"));
return 0;
}
int
main(int argc, char **argv)
{
LOGINREC *login;
DBPROCESS *dbproc;
DBINT testint;
STATUS rc;
int i, iresults;
char teststr[1024];
int rows_in_buffer, limit_rows;
const int buffer_count = 10;
const int rows_to_add = 50;
set_malloc_options();
read_login_info(argc, argv);
fprintf(stdout, "Starting %s\n", argv[0]);
/* Fortify_EnterScope(); */
dbinit();
dberrhandle(syb_err_handler);
dbmsghandle(syb_msg_handler);
fprintf(stdout, "About to logon\n");
login = dblogin();
DBSETLPWD(login, PASSWORD);
DBSETLUSER(login, USER);
DBSETLAPP(login, "t0002");
fprintf(stdout, "About to open %s..%s\n", SERVER, DATABASE);
dbproc = dbopen(login, SERVER);
if (strlen(DATABASE))
dbuse(dbproc, DATABASE);
dbloginfree(login);
fprintf(stdout, "Setting row buffer to 10 rows\n");
#ifdef MICROSOFT_DBLIB
dbsetopt(dbproc, DBBUFFER, "10");
#else
dbsetopt(dbproc, DBBUFFER, "10", 0);
#endif
sql_cmd(dbproc); /* drop table if exists */
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
if (dbresults(dbproc) != NO_MORE_RESULTS) {
fprintf(stdout, "Failed: dbresults call after NO_MORE_RESULTS should return NO_MORE_RESULTS.\n");
failed = 1;
}
sql_cmd(dbproc); /* create table */
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
for (i = 1; i <= rows_to_add; i++) {
sql_cmd(dbproc);
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
}
sql_cmd(dbproc); /* two result sets */
dbsqlexec(dbproc);
for (iresults=1; iresults <= 2; iresults++ ) {
fprintf(stdout, "fetching resultset %i\n", iresults);
if (dbresults(dbproc) != SUCCEED) {
fprintf(stderr, "Was expecting a result set %d.\n", iresults);
if( iresults == 2 )
fprintf(stderr, "Buffering with multiple resultsets is broken.\n");
exit(1);
}
rows_in_buffer = 0;
for (i = 1; i <= dbnumcols(dbproc); i++)
printf("col %d is [%s]\n", i, dbcolname(dbproc, i));
dbbind(dbproc, 1, INTBIND, 0, (BYTE *) & testint);
dbbind(dbproc, 2, STRINGBIND, 0, (BYTE *) teststr);
/* Fetch a result set */
/* Second resultset stops at row 46 */
limit_rows = rows_to_add - (iresults == 2 ? 4 : 0);
for (i=0; i < limit_rows;) {
fprintf(stdout, "clearing %d rows from buffer\n", rows_in_buffer ? buffer_count - 1 : buffer_count);
#ifdef MICROSOFT_DBLIB
if (i == 0) {
rc = dbnextrow(dbproc);
assert(rc == REG_ROW);
++i;
rows_in_buffer = 1;
}
#endif
dbclrbuf(dbproc, buffer_count);
rows_in_buffer = rows_in_buffer ? 1 : 0;
do {
int rc;
i++;
if (REG_ROW != (rc = dbnextrow(dbproc))) {
failed = 1;
fprintf(stderr, "Failed: Expected a row (%s:%d)\n", __FILE__, __LINE__);
if (rc == BUF_FULL)
fprintf(stderr, "Failed: dbnextrow returned BUF_FULL (%d). Fix dbclrbuf.\n", rc);
exit(1);
}
++rows_in_buffer;
verify(i, testint, teststr);
} while (rows_in_buffer < buffer_count && i < limit_rows);
if (rows_in_buffer == buffer_count) {
/* The buffer should be full */
assert(BUF_FULL == dbnextrow(dbproc));
}
}
if (iresults == 1) {
fprintf(stdout, "clearing %d rows from buffer\n", buffer_count);
dbclrbuf(dbproc, buffer_count);
while (dbnextrow(dbproc) != NO_MORE_ROWS) {
abort(); /* All rows were read: should not enter loop */
}
}
}
printf("\n");
/*
* Now test the buffered rows.
* Should be operating on rows 37-46 of 2nd resultset
*/
rc = dbgetrow(dbproc, 1);
if(rc != NO_MORE_ROWS) /* row 1 is not among the 31-40 in the buffer */
fprintf(stderr, "Failed: dbgetrow returned %d.\n", rc);
assert(rc == NO_MORE_ROWS);
rc = dbgetrow(dbproc, 37);
if(rc != REG_ROW)
fprintf(stderr, "Failed: dbgetrow returned %d.\n", rc);
assert(rc == REG_ROW);
verify(37, testint, teststr); /* first buffered row should be 37 */
rc = dbnextrow(dbproc);
if(rc != REG_ROW)
fprintf(stderr, "Failed: dbgetrow returned %d.\n", rc);
assert(rc == REG_ROW);
verify(38, testint, teststr); /* next buffered row should be 38 */
rc = dbgetrow(dbproc, 11);
assert(rc == NO_MORE_ROWS); /* only 10 (not 11) rows buffered */
rc = dbgetrow(dbproc, 46);
assert(rc == REG_ROW);
verify(46, testint, teststr); /* last buffered row should be 46 */
/* Attempt dbnextrow when buffer has no space (10 out of 10 in use). */
rc = dbnextrow(dbproc);
assert(rc == BUF_FULL);
dbclrbuf(dbproc, 3); /* remove rows 37, 38, and 39 */
rc = dbnextrow(dbproc);
assert(rc == REG_ROW);
verify(47, testint, teststr); /* fetch row from database, should be 47 */
rc = dbnextrow(dbproc);
assert(rc == REG_ROW);
verify(48, testint, teststr); /* fetch row from database, should be 48 */
/* buffer contains 8 rows (40-47) try removing 10 rows */
dbclrbuf(dbproc, buffer_count);
while (dbnextrow(dbproc) != NO_MORE_ROWS) {
/* waste rows 49-50 */
}
dbclose(dbproc); /* close while buffer not cleared: OK */
dbexit();
fprintf(stdout, "%s %s\n", __FILE__, (failed ? "failed!" : "OK"));
return failed ? 1 : 0;
}
int
main(int argc, char **argv)
{
LOGINREC *login;
DBPROCESS *dbproc;
DBINT testint;
STATUS rc;
int i, iresults;
char teststr[1024];
const int buffer_count = 10;
const int rows_to_add = 50;
const char tablename[] = "#dblib0002";
const char drop_if_exists[] = "if exists ( select 1 "
"from tempdb..sysobjects "
"where id = object_id('tempdb..%s') )\n"
"\tdrop table %s\n";
set_malloc_options();
read_login_info(argc, argv);
fprintf(stdout, "Start\n");
add_bread_crumb();
/* Fortify_EnterScope(); */
dbinit();
add_bread_crumb();
dberrhandle(syb_err_handler);
dbmsghandle(syb_msg_handler);
fprintf(stdout, "About to logon\n");
add_bread_crumb();
login = dblogin();
DBSETLPWD(login, PASSWORD);
DBSETLUSER(login, USER);
DBSETLAPP(login, "t0002");
fprintf(stdout, "About to open %s..%s\n", SERVER, DATABASE);
add_bread_crumb();
dbproc = dbopen(login, SERVER);
if (strlen(DATABASE))
dbuse(dbproc, DATABASE);
add_bread_crumb();
dbloginfree(login);
add_bread_crumb();
fprintf(stdout, "Setting row buffer to 10 rows\n");
#ifdef MICROSOFT_DBLIB
dbsetopt(dbproc, DBBUFFER, "10");
#else
dbsetopt(dbproc, DBBUFFER, "10", 0);
#endif
add_bread_crumb();
add_bread_crumb();
fprintf(stdout, drop_if_exists, tablename, tablename);
dbfcmd(dbproc, drop_if_exists, tablename, tablename);
add_bread_crumb();
dbsqlexec(dbproc);
add_bread_crumb();
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
if (dbresults(dbproc) != NO_MORE_RESULTS) {
fprintf(stdout, "Failed: dbresults call after NO_MORE_RESULTS should return NO_MORE_RESULTS.\n");
failed = 1;
}
add_bread_crumb();
fprintf(stdout, "create table %s (i int not null, s char(10) not null)\n", tablename);
dbfcmd(dbproc, "create table %s (i int not null, s char(10) not null)", tablename);
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
fprintf(stdout, "insert into %s [%d rows]\n", tablename, rows_to_add);
for (i = 1; i <= rows_to_add; i++) {
char cmd[1024];
sprintf(cmd, "insert into %s values (%d, 'row %03d')", tablename, i, i);
dbcmd(dbproc, cmd);
dbsqlexec(dbproc);
while (dbresults(dbproc) != NO_MORE_RESULTS) {
/* nop */
}
}
fprintf(stdout, "select * from %s order by i\n", tablename);
dbfcmd(dbproc, "select * from %s order by i\n", tablename);
dbfcmd(dbproc, "select * from %s order by i\n", tablename); /* two result sets */
dbsqlexec(dbproc);
add_bread_crumb();
for (iresults=1; iresults <= 2; iresults++ ) {
fprintf(stdout, "fetching resultset %i\n", iresults);
if (dbresults(dbproc) != SUCCEED) {
add_bread_crumb();
fprintf(stderr, "Was expecting a result set %d.\n", iresults);
if( iresults == 2 )
fprintf(stderr, "Buffering with multiple resultsets is broken.\n");
exit(1);
}
add_bread_crumb();
for (i = 1; i <= dbnumcols(dbproc); i++) {
add_bread_crumb();
printf("col %d is [%s]\n", i, dbcolname(dbproc, i));
add_bread_crumb();
}
add_bread_crumb();
dbbind(dbproc, 1, INTBIND, 0, (BYTE *) & testint);
add_bread_crumb();
dbbind(dbproc, 2, STRINGBIND, 0, (BYTE *) teststr);
add_bread_crumb();
/* Fetch a result set */
/* Second resultset stops at row 40 */
for (i=0; i < rows_to_add - (iresults == 2 ? buffer_count : 0);) {
fprintf(stdout, "clearing %d rows from buffer\n", buffer_count);
dbclrbuf(dbproc, buffer_count);
do {
int rc;
i++;
add_bread_crumb();
if (REG_ROW != (rc = dbnextrow(dbproc))) {
failed = 1;
fprintf(stderr, "Failed: Expected a row (%s:%d)\n", __FILE__, __LINE__);
if (rc == BUF_FULL)
fprintf(stderr, "Failed: dbnextrow returned BUF_FULL (%d). Fix dbclrbuf.\n", rc);
exit(1);
}
add_bread_crumb();
verify(i, testint, teststr);
} while (i % buffer_count);
if (iresults == 1 && i == rows_to_add) {
/* The buffer should be full */
assert(BUF_FULL == dbnextrow(dbproc));
}
}
if (iresults == 1) {
fprintf(stdout, "clearing %d rows from buffer\n", buffer_count);
dbclrbuf(dbproc, buffer_count);
while (dbnextrow(dbproc) != NO_MORE_ROWS) {
abort(); /* All rows were read: should not enter loop */
}
}
}
/*
* Now test the buffered rows.
* Should be operating on rows 31-40 of 2nd resultset
*/
rc = dbgetrow(dbproc, 1);
add_bread_crumb();
if(rc != NO_MORE_ROWS) /* row 1 is not among the 31-40 in the buffer */
fprintf(stderr, "Failed: dbgetrow returned %d.\n", rc);
assert(rc == NO_MORE_ROWS);
rc = dbgetrow(dbproc, 31);
add_bread_crumb();
if(rc != REG_ROW)
fprintf(stderr, "Failed: dbgetrow returned %d.\n", rc);
assert(rc == REG_ROW);
verify(31, testint, teststr); /* first buffered row should be 31 */
rc = dbnextrow(dbproc);
add_bread_crumb();
if(rc != REG_ROW)
fprintf(stderr, "Failed: dbgetrow returned %d.\n", rc);
assert(rc == REG_ROW);
verify(32, testint, teststr); /* next buffered row should be 32 */
rc = dbgetrow(dbproc, 11);
add_bread_crumb();
assert(rc == NO_MORE_ROWS); /* only 10 (not 11) rows buffered */
rc = dbgetrow(dbproc, 40);
add_bread_crumb();
assert(rc == REG_ROW);
verify(40, testint, teststr); /* last buffered row should be 40 */
/* Attempt dbnextrow when buffer has no space (10 out of 10 in use). */
rc = dbnextrow(dbproc);
assert(rc == BUF_FULL);
dbclrbuf(dbproc, 3); /* remove rows 31, 32, and 33 */
rc = dbnextrow(dbproc);
add_bread_crumb();
assert(rc == REG_ROW);
verify(41, testint, teststr); /* fetch row from database, should be 41 */
rc = dbnextrow(dbproc);
add_bread_crumb();
assert(rc == REG_ROW);
verify(42, testint, teststr); /* fetch row from database, should be 42 */
/* buffer contains 9 rows (34-42) try removing 10 rows */
dbclrbuf(dbproc, buffer_count);
while (dbnextrow(dbproc) != NO_MORE_ROWS) {
/* waste rows 43-50 */
}
dbclose(dbproc); /* close while buffer not cleared: OK */
add_bread_crumb();
dbexit();
add_bread_crumb();
fprintf(stdout, "dblib %s on %s\n", (failed ? "failed!" : "okay"), __FILE__);
free_bread_crumb();
return failed ? 1 : 0;
}
