TDM Block mode for Diadem 9.1

I create TDM- Headers with the "TDM Header Writer C API". When I run the example "Single-Channel Binary File"everthing is allright, but when I run the example "Multiple Binary Files" I can't see my data in Diadem. The length of the channel is 0. I use Diadem 9.1.
Where is my problem?

Hi ccabek,
DIAdem, LabVIEW and CVI sit on top of a data management layer called the Universal Storage Interface (USI). The C library you are using creates only the TDM header file, but does not provide the USI layer with which this TDM file can be read. USI is installed by each of these 3 host applications, and the most recent version of USI always wins and always stays on the computer (even if the installing application is uninstalled). There is a similar api to the one you are using with LabVIEW wrapper VIs, and each VI has a little documentation attached to it-- here's an excerpt from the VI that declares a block of interleaved binary values:
Note that interleaved (Block) channels described in a TDM file will only load correctly in LabVIEW or DIAdem when USI version 1.1.1.2245 or later is installed (LabVIEW 8.0, DIAdem 9.1 SP2, or later versions).
Note that interleaved (Block) channels with "Block Length (# samples)" = 0 in a TDM file will only load correctly in LabVIEW or DIAdem when USI version 1.2 or later is installed (LabVIEW 8.0, DIAdem 10.0, or later versions.)
In short, a TDM header which declares an interleaved binary block requires that DIAdem 9.1 with SP2 is installed, which you can get from the site:
http://digital.ni.com/softlib.nsf/websearch/E1DEFED2895BF62086256FBF004AB6FE?opendocument&node=13207...
Note that the SP2 will force you to uninstall DIAdem 9.1 before installing SP2. Despite the SP2 name, it really is a full DIAdem installation.
Finally, if you really are declaring BlockLength = 0, you will need DIAdem 10.0 or later. You can always install the evaluation version of DIAdem 10.0, then uninstall it, and you will retain the newer USI version.
That should help,
Brad Turpin
DIAdem Product Support Engineer
National Instruments

Similar Messages

How do I troubleshoot Flash Player's protected mode for Firefox?

Starting with Flash Player 11.3, a protected mode was added as a new security enhancement for Firefox 4.0 and greater on Windows Vista and higher. This security enhancement is designed to limit the impact of attacks launched from malicious Flash content (SWF files). For additional details on this feature, please see Inside Flash Player Protected Mode for Firefox
After reviewing this FAQ, we'd appreciate if you would take a minute to let us know if it helped. There is a link to a two question survey at the bottom of the page.
While we believe this feature is fully tested and reliable, if you encounter issues with Firefox we recommend the following troubleshooting steps.
Problem: Flash content does not appear, YouTube display errors such as "An error occurred. Please try again later.", or Flash video will not function properly.
Solution: If RealPlayer is installed on your system, please disable the RealPlayer Browser Record plug-in.
Launch RealPlayer
Click the RealPlayer icon in the upper left corner of the window and choose Preferences.
Choose Download & Recording from the left hand panel
Uncheck "Enable Web Download & Recording for these installed browsers"
Click OK and close RealPlayer
Restart Firefox
If you are viewing this page in Firefox and Flash Player is not working, please click here for an HTML5 version of this video: YouTube HTML5 HD Link
Problem: RealPlayer is not installed, Flash Player crashes in Firefox
Solution:
Troubleshoot Extensions and Add-Ons by launching Firefox in Safe Mode
1. Exit Firefox
2. Click Start > Run
3. Type the following then press [Enter]:
firefox.exe -p
4. Click Continue in Safe Mode
5. Attempt to reproduce the problem
If the problem does not occur in safe mode, please try to isolate it down to an individual plug-in.
1. Exit Firefox
2. Re-launch Firefox
3. Click Firefox > Add-Ons > Extensions
4. Click Disable on all of your extensions
5. Attempt to reproduce the problem, while enabling each extension until you can reproduce the issue
If the issue persists in Safe-Mode, please continue with the steps below:
Some users have indicated that random crashing stops when clearing their Firefox profile. This step will allow you to temporarily test with a clean set of Firefox preferences, without losing your preferences.
Exit Firefox
Click Start > Run
Type the following then press [Enter]: firefox.exe -p
Click Create Profile
Click Next
In the Enter new profile name dialog, type "Test"
Click Finish
Select Test and click Start Firefox
Use Firefox as normal. If the problem goes away, clearing your Firefox preferences, or migrating the important settings (bookmarks, etc) to a clean Profile may be a good permanent solution.
If the problem persists, switch back to your old profile by doing the following:
Exit Firefox
Click Start > Run
Type the following then press [enter]:firefox.exe –p
Choose your old account (typically "default")
Click Start Firefox
Solution: Try a clean Windows profile (You must be an Administrator to complete this step. If your user account is not an admin type, skip to the next section for instructions on reporting a bug.) Creating a new Windows user will rule out any account-specific preferences that may be enabled on your system.
Create a user account in Vista
Create a user account in Windows 7
Use Flash Player normally. If the problem goes away, this indicates a compatibility problem, either with software you have installed or with preferences set on your account.
Reporting a bug:
Please file bugs at bugbase.adobe.com.
Choose "Adobe Flash Player" as the product
Choose "Browser Integration" as the product area
Please provide as much information as possible with what you were doing before the crash and an exact URL where the crash occurred.
If available, please attach your Firefox crash logs to the bug using the Attachments field.
Show hidden files and folders. For more details, see the instructions for the operating system that you use: Vista and Windows 7.
Crash logs are located at C:\Users\username\AppData\Roaming\Mozilla\Firefox\Crash Reports\
Logs will be located in either the pending or submitted folder, depending on whether or not you submitted the crash report to Mozilla.
Last resort
Finally, if these problems are blocking you from using Flash Player we recommend, as a last resort, you either revert back to Flash Player 11.2 or temporarily disable Protected Mode. We strongly recommend that Protected Mode is manually enabled once this issue is resolved.
To revert to a previous version of Flash Player, please see this FAQ: How do I revert to a previous version of Flash Player?
To disable Protected Mode, add the following line to your mms.cfg file located in:
Windows 32bit: C:\windows\system32\macromed\flash
Windows 64bit: C:\windows\syswow64\macromed\flash
ProtectedMode=0
If the mms.cfg file does not exist, create one using any standard text editor (e.g.. notepad)
Depending on your operating system, you might need to first save the mms.cfg file to a writable location (such as your documents or desktop folder) and then copy the file into the destination folder using Windows Explorer.
To re-enable Protected Mode, simply remove the line from the mms.cfg file.
Hopefully this FAQ helped you. Please let us know by taking a minute to fill out this simple survey.
Did this FAQ help?

Please ask your question on a forum for the Flash Player

ORA-00349: failure obtaining block size for '+Z' in Oracle XE

Hello,
I am attempting to move the online redo log files to a new flash recovery area location created on network drive "Z" ( Oracle Database 10g Express Edition Release 10.2.0.1.0).
When I run @?/sqlplus/admin/movelogs; in SQL*Plus as a local sysdba, I get the following errors:
ERROR at line 1:
ORA-00349: failure obtaining block size for '+Z'
ORA-06512: at line 14
Please let me know how to go about resolving this issue.
Thank you.
See below for detail:
Connected.
SQL> @?/sqlplus/admin/movelogs;
SQL> Rem
SQL> Rem $Header: movelogs.sql 19-jan-2006.00:23:11 banand Exp $
SQL> Rem
SQL> Rem movelogs.sql
SQL> Rem
SQL> Rem Copyright (c) 2006, Oracle. All rights reserved.
SQL> Rem
SQL> Rem NAME
SQL> Rem movelogs.sql - move online logs to new Flash Recovery Area
SQL> Rem
SQL> Rem DESCRIPTION
SQL> Rem This script can be used to move online logs from old online
log
SQL> Rem location to Flash Recovery Area. It assumes that the database
SQL> Rem instance is started with new Flash Recovery Area location.
SQL> Rem
SQL> Rem NOTES
SQL> Rem For use to rename online logs after moving Flash Recovery
Area.
SQL> Rem The script can be executed using following command
SQL> Rem sqlplus '/ as sysdba' @movelogs.sql
SQL> Rem
SQL> Rem MODIFIED (MM/DD/YY)
SQL> Rem banand 01/19/06 - Created
SQL> Rem
SQL>
SQL> SET ECHO ON
SQL> SET FEEDBACK 1
SQL> SET NUMWIDTH 10
SQL> SET LINESIZE 80
SQL> SET TRIMSPOOL ON
SQL> SET TAB OFF
SQL> SET PAGESIZE 100
SQL> declare
2 cursor rlc is
3 select group# grp, thread# thr, bytes/1024 bytes_k
4 from v$log
5 order by 1;
6 stmt varchar2(2048);
7 swtstmt varchar2(1024) := 'alter system switch logfile';
8 ckpstmt varchar2(1024) := 'alter system checkpoint global';
9 begin
10 for rlcRec in rlc loop
11 stmt := 'alter database add logfile thread ' ||
12 rlcRec.thr || ' size ' ||
13 rlcRec.bytes_k || 'K';
14 execute immediate stmt;
15 begin
16 stmt := 'alter database drop logfile group ' || rlcRec.grp;
17 execute immediate stmt;
18 exception
19 when others then
20 execute immediate swtstmt;
21 execute immediate ckpstmt;
22 execute immediate stmt;
23 end;
24 execute immediate swtstmt;
25 end loop;
26 end;
27 /
declare
ERROR at line 1:
ORA-00349: failure obtaining block size for '+Z'
ORA-06512: at line 14
Can someone point me in the right direction as to what I may be doing wrong here - Thank you!

888442 wrote:
I am trying to drop and recreate ONLINE redo logs on my STANDB DATABASE (11.1.0.7)., but i am getting the below error.
On primary, we have done the changes., ie we added new logfile with bigger size and 3 members. When trying to do the same on Standby we are getting this error.
Our database is in Active DG Read only mode and the oracle version is 11.1.0.7.
I have deffered the log apply and cancelled the managed recovery, and dg is in manual mode.
SQL> alter database Add LOGFILE GROUP 4 ('+DT_DG1','+DT_DG2','+DT_DG3') SIZE 1024M;
alter database Add LOGFILE GROUP 4 ('+DT_DG1','+DT_DG2','+DT_DG3') SIZE 1024M
ERROR at line 1:
ORA-00349: failure obtaining block size for '+DT_DG1'First why you are dropping & recreating online redo log files on standby.
On standby only standby redo log files will be used. Not sure what you are trying to do.
here is example how to create online redo log files, Check that diskgroup is mounted and have sufficient space to create.
sys@ORCL> select member from v$logfile;
MEMBER
C:\ORACLE\ORADATA\ORCL\REDO03.LOG
C:\ORACLE\ORADATA\ORCL\REDO02.LOG
C:\ORACLE\ORADATA\ORCL\REDO01.LOG
sys@ORCL> alter database add logfile group 4 (
2     'C:\ORACLE\ORADATA\ORCL\redo_g01a.log',
3     'C:\ORACLE\ORADATA\ORCL\redo_g01b.log',
4     'C:\ORACLE\ORADATA\ORCL\redo_g01c.log') size 10m;
Database altered.
sys@ORCL> select member from v$logfile;
MEMBER
C:\ORACLE\ORADATA\ORCL\REDO03.LOG
C:\ORACLE\ORADATA\ORCL\REDO02.LOG
C:\ORACLE\ORADATA\ORCL\REDO01.LOG
C:\ORACLE\ORADATA\ORCL\REDO_G01A.LOG
C:\ORACLE\ORADATA\ORCL\REDO_G01B.LOG
C:\ORACLE\ORADATA\ORCL\REDO_G01C.LOG
6 rows selected.
sys@ORCL>
Your profile:-
888442
     Newbie
Handle:      888442
Status Level:      Newbie
Registered:      Sep 29, 2011
Total Posts:      12
Total Questions:      8 (7 unresolved)
Close the threads if answered, Keep the forum clean.

How to open an URL from Forms in blocking mode?

Can anyone tell me if it is possible to open a website from within forms in blocking mode? The reason why I have to use blocking mode is that the user has to take some action in the website and has to end that session explicitly with a button on the website. After that, a file is written on the server that is needed for further action. Without that file the process can't go on.
I use Forms (32-bits) versie 10.1.2.0.2.

Thanks for your answer.
Your suggestion is only possible with a timer-trigger (correct me if I'm wrong). And that's the point.... The time the user can act in the website is unlimited. So, how to set up a timer-trigger? Another work around is to make a process that works at some time and searches for the files on the server. But that's not what we want to do.
Does anyone have another idea?

SELECT of OCILobLocator in Non Blocking mode

Hi all.
I have problem:
I try select BLOB field into OCILobLocator* buffer in Non Blocking mode, and receive 'ORA-03106: fatal two-task communication protocol error' sometimes.
Details:
Application contains two threads : 1. select blob field, 2. update it.
I tried separate update and select to different apps (and run its in one time) - problem reproduced.
problem reproduced for OCIStmtFetch and OCIStmtFetch2.
If disable non blocking mode - problem disappear.
if error appear - record level error code contains 1405. Need wait few minutes for error message appearing (~1 minute in my case).
Using of OCI_DEFAULT in OCIDefineByPos instead OCI_DYNAMIC_FETCH don't solve problem.
I use oracle server and client library with version 10.2.0.4
Output sample:
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #877: 1405
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #54: 1405
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #877: 1405
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #54: 1405
Can anybody help me ?
m.b. exists workaround ?
#include <iostream>
#include <sstream>
#include <assert.h>
#include <oci.h>
#define _DYN 1
before run this test run next sql at DB:
CREATE TABLE ADSERVERTEST_BLOB(id NUMBER(10), text BLOB);
BEGIN
FOR i IN 0..999 LOOP
INSERT INTO ADSERVERTEST_BLOB(id, text) VALUES(i, utl_raw.cast_to_raw('init'));
END LOOP;
END;
template<typename Type, unsigned long TypeId>
class OCIHandlePtr
public:
OCIHandlePtr(): handle_(0) {}
OCIHandlePtr(Type* handle): handle_(handle) {}
~OCIHandlePtr()
reset(0);
void reset(Type* handle)
if(handle_)
sword result;
if((result = OCIHandleFree(
handle_,
TypeId)) != OCI_SUCCESS)
assert(0);
std::cerr << "Can't make OCIHandleFree" << std::endl;
handle_ = handle;
Type* get()
return handle_;
Type*& fill()
reset(0);
return handle_;
private:
Type* handle_;
template<typename Type, unsigned long TypeId>
class OCIDescriptorPtr
public:
OCIDescriptorPtr(): handle_(0) {}
OCIDescriptorPtr(Type* handle): handle_(handle) {}
~OCIDescriptorPtr()
reset(0);
void reset(Type* handle)
if(handle_)
sword result;
if((result = OCIDescriptorFree(
handle_,
TypeId)) != OCI_SUCCESS)
std::cerr << "Can't make OCIDescriptorFree" << std::endl;
handle_ = handle;
Type* get()
return handle_;
Type*& fill()
reset(0);
return handle_;
private:
Type* handle_;
void throw_oci_error(
const char* fun,
const char* oci_op,
long status,
OCIError* oci_error_handler,
const char* query = 0)
std::cerr << fun << ": can't make " << oci_op << ": status = " << status;
if(status == OCI_SUCCESS_WITH_INFO ||
status == OCI_ERROR)
std::cerr << ", message = '";
text err_buf[1024] = "";
sb4 err_code = 0;
OCIErrorGet(
oci_error_handler,
(ub4)1,
0,
&err_code,
err_buf,
sizeof(err_buf),
(ub4)OCI_HTYPE_ERROR);
std::cerr << err_buf << "', error code = " << err_code;
exit(1);
if(query)
std::cerr << ", sql = " << query;
OCIHandlePtr<OCIEnv, OCI_HTYPE_ENV> environment_handle;
void connect(
OCIEnv* environment_handle,
const char* db,
const char* user,
const char* password,
OCIHandlePtr<OCIError, OCI_HTYPE_ERROR>& error_handle,
OCIHandlePtr<OCIServer, OCI_HTYPE_SERVER>& server_handle,
OCIHandlePtr<OCISession, OCI_HTYPE_SESSION>& session_handle,
OCIHandlePtr<OCISvcCtx, OCI_HTYPE_SVCCTX>& svc_context_handle)
static const char* FUN = "connect()";
sword result;
// allocate an error handle
if((result = OCIHandleAlloc(
environment_handle,
(void **) &error_handle.fill(),
OCI_HTYPE_ERROR,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// allocate a server handle
if((result = OCIHandleAlloc(
environment_handle,
(void **) &server_handle.fill(),
OCI_HTYPE_SERVER,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
if((result = OCIServerAttach(
server_handle.get(),
error_handle.get(),
(text*)db,
strlen(db),
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIServerAttach", result, error_handle.get());
// allocate a service handle
if((result = OCIHandleAlloc(
environment_handle,
(void **) &svc_context_handle.fill(),
OCI_HTYPE_SVCCTX,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// set the server attribute in the service context handle
if((result = OCIAttrSet(
svc_context_handle.get(),
OCI_HTYPE_SVCCTX,
server_handle.get(),
sizeof(OCIServer*),
OCI_ATTR_SERVER,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// allocate a user session handle
if((result = OCIHandleAlloc(
environment_handle,
(void **)&session_handle.fill(),
OCI_HTYPE_SESSION,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// set username and password attributes in user session handle
if((result = OCIAttrSet(
session_handle.get(),
OCI_HTYPE_SESSION,
(text*)user,
strlen(user),
OCI_ATTR_USERNAME,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
if((result = OCIAttrSet(
session_handle.get(),
OCI_HTYPE_SESSION,
(text*)password,
strlen(password),
OCI_ATTR_PASSWORD,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
// start the session
if((result = OCISessionBegin(
svc_context_handle.get(),
error_handle.get(),
session_handle.get(),
OCI_CRED_RDBMS,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCISessionBegin", result, error_handle.get());
// set the user session attribute in the service context handle
if((result = OCIAttrSet(
svc_context_handle.get(),
OCI_HTYPE_SVCCTX,
session_handle.get(),
sizeof(OCISession*),
OCI_ATTR_SESSION,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
ub1 attr_value = 1;
if((result = OCIAttrSet(
server_handle.get(),
OCI_HTYPE_SERVER,
&attr_value,
sizeof(attr_value),
OCI_ATTR_NONBLOCKING_MODE,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
void disconnect(
OCIEnv* environment_handle,
OCIError* error_handle,
OCIServer* server_handle,
OCISession* session_handle,
OCISvcCtx* svc_context_handle)
static const char* FUN = "disconnect()";
sword result;
if((result = OCISessionEnd(
svc_context_handle,
error_handle,
session_handle,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCISessionEnd", result, error_handle);
if((result = OCIServerDetach(
server_handle,
error_handle,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIServerDetach", result, error_handle);
OCILobLocator* FETCH_BUFFER_1[10000*1024];
char IND_BUFFER_1[10000*1024];
ub2 ERROR_BUFFER_1[1024];
OCIDefine* define_handle_1;
void clear_blob_buf(
OCILobLocator** buf,
unsigned long fetch_size)
for(unsigned long i = 0; i < 1024; ++i)
OCIDescriptorFree(
buf,
(ub4)OCI_DTYPE_LOB);
::memset(buf, 0, fetch_size * 1024);
uint32_t RET_LEN4;
sb4 oci_blob_callback(
dvoid* ctx,
OCIDefine* define,
ub4 iter,
dvoid** bufpp,
ub4** alenpp,
ub1* piecep,
dvoid** indpp,
ub2** rcodepp)
RET_LEN4 = sizeof(OCILobLocator*);
*bufpp = FETCH_BUFFER_1[iter];
*alenpp = &RET_LEN4;
*piecep = OCI_ONE_PIECE;
*indpp = IND_BUFFER_1 + iter;
*rcodepp = ERROR_BUFFER_1 + iter;
//std::cout << "iter: " << iter << std::endl;
return OCI_CONTINUE;
int define_column(
OCIEnv* environment_handle,
OCISvcCtx* svc_handle,
OCIStmt* stmt_handle,
OCIError* error_handle,
OCIDefine** define_handle,
unsigned long pos,
long oci_type,
unsigned long fetch_size,
OCILobLocator** buf,
char* ind_buf,
ub2* err_buf)
static const char* FUN = "define_column()";
sword result;
if(oci_type == SQLT_BLOB)
::memset(buf, 0, fetch_size * 1024);
for(int i = 0; i < 1024; ++i)
if((result = OCIDescriptorAlloc(
(dvoid*)environment_handle,
(dvoid**)&buf[i],
(ub4)OCI_DTYPE_LOB,
(size_t)0,
(dvoid**)0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIDescriptorAlloc", result, error_handle);
ub2 size = 0;
OCIDescriptorPtr<OCIParam, OCI_DTYPE_PARAM> param_handle;
// ub2 oci_data_type = 0;
if((result = OCIParamGet(
stmt_handle,
OCI_HTYPE_STMT,
error_handle,
reinterpret_cast<void**>(&param_handle.fill()),
pos)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIParamGet", result, error_handle);
if((result = OCIAttrGet(
param_handle.get(),
OCI_DTYPE_PARAM,
&size,
0,
OCI_ATTR_DATA_SIZE,
error_handle)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrGet", result, error_handle);
if((result = OCIDefineByPos(
stmt_handle,
define_handle,
error_handle,
pos,
# ifdef _DYN
0,
-1,
#else
buf,
fetch_size,
#endif
oci_type,
ind_buf,
0,
err_buf, // ptr to array of column-level return codes
# ifdef _DYN
OCI_DYNAMIC_FETCH
# else
OCI_DEFAULT
# endif
)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIDefineByPos", result, error_handle);
# ifdef _DYN
if((result = OCIDefineDynamic(
*define_handle,
error_handle,
0,
oci_blob_callback)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIDefineByPos", result, error_handle);
# endif
return 0;
int define_columns(
OCIEnv* environment_handle,
OCISvcCtx* svc_handle,
OCIStmt* stmt_handle,
OCIError* error_handle)
static const char* FUN = "define_columns()";
define_handle_1 = 0;
int pos = 1;
::memset(ERROR_BUFFER_1, 0, 1024 * sizeof(ERROR_BUFFER_1[0]));
define_column(
environment_handle,
svc_handle,
stmt_handle,
error_handle,
&define_handle_1,
pos++,
SQLT_BLOB,
sizeof(OCILobLocator*),
FETCH_BUFFER_1,
IND_BUFFER_1,
ERROR_BUFFER_1);
return 0;
int execute_select(
const char* db,
const char* user,
const char* password)
static const char* FUN = "execute_select()";
const unsigned long FETCH_COUNT = 1024;
OCIHandlePtr<OCIError, OCI_HTYPE_ERROR> error_handle;
OCIHandlePtr<OCIServer, OCI_HTYPE_SERVER> server_handle;
OCIHandlePtr<OCISession, OCI_HTYPE_SESSION> session_handle;
OCIHandlePtr<OCISvcCtx, OCI_HTYPE_SVCCTX> svc_context_handle;
connect(
environment_handle.get(),
db,
user,
password,
error_handle,
server_handle,
session_handle,
svc_context_handle);
OCIHandlePtr<OCIStmt, OCI_HTYPE_STMT> stmt_handle;
sword result;
if((result = OCIHandleAlloc(
environment_handle.get(),
(void**)&stmt_handle.fill(),
OCI_HTYPE_STMT,
0,
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
const char QUERY[] = "SELECT text FROM ADSERVERTEST_BLOB";
ub4 rows = 0;
if((result = OCIAttrSet(
stmt_handle.get(),
OCI_HTYPE_STMT,
(dvoid *)&rows,
(ub4)sizeof(ub4),
OCI_ATTR_PREFETCH_ROWS,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(
FUN, "OCIAttrSet(OCI_ATTR_PREFETCH_ROWS)", result, error_handle.get());
if((result = OCIStmtPrepare(
stmt_handle.get(),
error_handle.get(),
(text*)QUERY,
strlen(QUERY),
OCI_NTV_SYNTAX,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIStmtPrepare", result, error_handle.get());
ub2 stmt_type;
if((result = OCIAttrGet(
stmt_handle.get(),
OCI_HTYPE_STMT,
&stmt_type,
0,
OCI_ATTR_STMT_TYPE,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrGet", result, error_handle.get());
ub4 prev_fetched = 0;
while((result = OCIStmtExecute(
svc_context_handle.get(),
stmt_handle.get(),
error_handle.get(),
0,
0,
0,
0,
OCI_DEFAULT)) != OCI_SUCCESS)
if(result != OCI_STILL_EXECUTING)
throw_oci_error(FUN, "OCIStmtExecute", result, error_handle.get());
define_columns(
environment_handle.get(),
svc_context_handle.get(),
stmt_handle.get(),
error_handle.get());
ub4 all_fetched_count = 0;
while(true)
while((result = OCIStmtFetch2(
stmt_handle.get(),
error_handle.get(),
FETCH_COUNT,
OCI_FETCH_NEXT,
1,
OCI_DEFAULT)) == OCI_STILL_EXECUTING
# ifdef _DYN
// || result == OCI_NEED_DATA
# endif
if (result != OCI_SUCCESS &&
result != OCI_NO_DATA &&
result != OCI_SUCCESS_WITH_INFO)
std::cerr << FUN << ": can't make OCIStmtFetch2: status = " << result;
std::cerr << ", message = '";
text err_buf[1024] = "";
sb4 err_code = 0;
OCIErrorGet(
error_handle.get(),
(ub4)1,
0,
&err_code,
err_buf,
sizeof(err_buf),
(ub4)OCI_HTYPE_ERROR);
std::cerr << err_buf << "', error code = " << err_code << ", row errors: ";
for(const ub2* cur = ERROR_BUFFER_1;
cur < ERROR_BUFFER_1 + 1024; ++cur)
if(*cur)
std::cerr << "#" << (cur - ERROR_BUFFER_1) << ": " <<
*cur << std::endl;
ub4 fetched_count = 0;
if((result = OCIAttrGet (
stmt_handle.get(),
OCI_HTYPE_STMT,
&fetched_count,
0,
OCI_ATTR_ROW_COUNT,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrGet", result, error_handle.get());
all_fetched_count += fetched_count;
if(fetched_count > 0)
for(unsigned long i = 0; i < fetched_count - 1; ++i)
ub4 lob_size;
while((result = OCILobGetLength(
svc_context_handle.get(),
error_handle.get(),
FETCH_BUFFER_1[i],
&lob_size)) == OCI_STILL_EXECUTING)
if(result != OCI_SUCCESS)
throw_oci_error(FUN, "OCILobGetLength", result, error_handle.get());
std::cout << "#" << i << ": ind = " << (unsigned long)IND_BUFFER_1[i] <<
", len = " << lob_size << std::endl;
if(fetched_count - prev_fetched < FETCH_COUNT)
break;
prev_fetched = fetched_count;
clear_blob_buf(
FETCH_BUFFER_1,
sizeof(OCILobLocator*));
while((result = OCIStmtFetch(
stmt_handle.get(),
error_handle.get(),
0,
OCI_FETCH_NEXT,
OCI_DEFAULT)) == OCI_STILL_EXECUTING
disconnect(
environment_handle.get(),
error_handle.get(),
server_handle.get(),
session_handle.get(),
svc_context_handle.get());
return 0;
int execute_update(
const char* db,
const char* user,
const char* password)
static const char* FUN = "execute_update()";
OCIHandlePtr<OCIError, OCI_HTYPE_ERROR> error_handle;
OCIHandlePtr<OCIServer, OCI_HTYPE_SERVER> server_handle;
OCIHandlePtr<OCISession, OCI_HTYPE_SESSION> session_handle;
OCIHandlePtr<OCISvcCtx, OCI_HTYPE_SVCCTX> svc_context_handle;
connect(
environment_handle.get(),
db,
user,
password,
error_handle,
server_handle,
session_handle,
svc_context_handle);
OCIHandlePtr<OCIStmt, OCI_HTYPE_STMT> stmt_handle;
for(int i = 0; i < 1000; ++i)
sword result;
if((result = OCIHandleAlloc(
environment_handle.get(),
(void**)&stmt_handle.fill(),
OCI_HTYPE_STMT,
0,
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
std::ostringstream sql;
std::string str;
std::string et("\xEB\xB2\x88");
unsigned long rep = ::rand() % 500 + 1;
str.reserve(rep*et.size());
for(unsigned long ei = 0; ei < rep; ++ei)
str.append(et);
sql << "BEGIN " <<
"UPDATE ADSERVERTEST_BLOB SET text = "
"utl_raw.cast_to_raw('" << str << "') "
"WHERE id = " << i <<
"END;";
if((result = OCIStmtPrepare(
stmt_handle.get(),
error_handle.get(),
(text*)sql.str().c_str(),
sql.str().length(),
OCI_NTV_SYNTAX,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIStmtPrepare", result, error_handle.get());
while((result = OCIStmtExecute(
svc_context_handle.get(),
stmt_handle.get(),
error_handle.get(),
1,
0,
0,
0,
OCI_DEFAULT)) != OCI_SUCCESS)
if(result != OCI_STILL_EXECUTING)
throw_oci_error(FUN, "OCIStmtExecute", result, error_handle.get());
disconnect(
environment_handle.get(),
error_handle.get(),
server_handle.get(),
session_handle.get(),
svc_context_handle.get());
return 0;
void* select_thread(void* ctx)
while(true)
execute_select(
"//oraclept.ocslab.com/addbpt.ocslab.com",
"bs_unittest_4",
"adserver");
// std::cout << "select finished" << std::endl;
return ctx;
void* update_thread(void* ctx)
while(true)
execute_update(
"//oraclept.ocslab.com/addbpt.ocslab.com",
"bs_unittest_4",
"adserver");
// std::cout << "update finished" << std::endl;
return ctx;
int main()
static const char* FUN = "main()";
sword result;
// allocate an environment handle
if((result = OCIEnvCreate(
&environment_handle.fill(),
OCI_OBJECT | OCI_THREADED,
0, // context
0, // malloc
0, // realloc
0, // free
0, // extra memory to allocate
0) // pointer to user-memory
) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIEnvCreate", result, 0);
pthread_t th1, th2;
pthread_create(&th1, 0, select_thread, 0);
pthread_create(&th2, 0, update_thread, 0);
pthread_join(th1, 0);
pthread_join(th2, 0);
return 0;
Edited by: user13011391 on 20.04.2010 5:50
Edited by: user13011391 on 20.04.2010 6:00
Edited by: user13011391 on 20.04.2010 6:15

Hi all.
I have problem:
I try select BLOB field into OCILobLocator* buffer in Non Blocking mode, and receive 'ORA-03106: fatal two-task communication protocol error' sometimes.
Details:
Application contains two threads : 1. select blob field, 2. update it.
I tried separate update and select to different apps (and run its in one time) - problem reproduced.
problem reproduced for OCIStmtFetch and OCIStmtFetch2.
If disable non blocking mode - problem disappear.
if error appear - record level error code contains 1405. Need wait few minutes for error message appearing (~1 minute in my case).
Using of OCI_DEFAULT in OCIDefineByPos instead OCI_DYNAMIC_FETCH don't solve problem.
I use oracle server and client library with version 10.2.0.4
Output sample:
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #877: 1405
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #54: 1405
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #877: 1405
execute_select(): can't make OCIStmtFetch2: status = -1, message = 'ORA-03106: fatal two-task communication protocol error
', error code = 3106, row errors: #54: 1405
Can anybody help me ?
m.b. exists workaround ?
#include <iostream>
#include <sstream>
#include <assert.h>
#include <oci.h>
#define _DYN 1
before run this test run next sql at DB:
CREATE TABLE ADSERVERTEST_BLOB(id NUMBER(10), text BLOB);
BEGIN
FOR i IN 0..999 LOOP
INSERT INTO ADSERVERTEST_BLOB(id, text) VALUES(i, utl_raw.cast_to_raw('init'));
END LOOP;
END;
template<typename Type, unsigned long TypeId>
class OCIHandlePtr
public:
OCIHandlePtr(): handle_(0) {}
OCIHandlePtr(Type* handle): handle_(handle) {}
~OCIHandlePtr()
reset(0);
void reset(Type* handle)
if(handle_)
sword result;
if((result = OCIHandleFree(
handle_,
TypeId)) != OCI_SUCCESS)
assert(0);
std::cerr << "Can't make OCIHandleFree" << std::endl;
handle_ = handle;
Type* get()
return handle_;
Type*& fill()
reset(0);
return handle_;
private:
Type* handle_;
template<typename Type, unsigned long TypeId>
class OCIDescriptorPtr
public:
OCIDescriptorPtr(): handle_(0) {}
OCIDescriptorPtr(Type* handle): handle_(handle) {}
~OCIDescriptorPtr()
reset(0);
void reset(Type* handle)
if(handle_)
sword result;
if((result = OCIDescriptorFree(
handle_,
TypeId)) != OCI_SUCCESS)
std::cerr << "Can't make OCIDescriptorFree" << std::endl;
handle_ = handle;
Type* get()
return handle_;
Type*& fill()
reset(0);
return handle_;
private:
Type* handle_;
void throw_oci_error(
const char* fun,
const char* oci_op,
long status,
OCIError* oci_error_handler,
const char* query = 0)
std::cerr << fun << ": can't make " << oci_op << ": status = " << status;
if(status == OCI_SUCCESS_WITH_INFO ||
status == OCI_ERROR)
std::cerr << ", message = '";
text err_buf[1024] = "";
sb4 err_code = 0;
OCIErrorGet(
oci_error_handler,
(ub4)1,
0,
&err_code,
err_buf,
sizeof(err_buf),
(ub4)OCI_HTYPE_ERROR);
std::cerr << err_buf << "', error code = " << err_code;
exit(1);
if(query)
std::cerr << ", sql = " << query;
OCIHandlePtr<OCIEnv, OCI_HTYPE_ENV> environment_handle;
void connect(
OCIEnv* environment_handle,
const char* db,
const char* user,
const char* password,
OCIHandlePtr<OCIError, OCI_HTYPE_ERROR>& error_handle,
OCIHandlePtr<OCIServer, OCI_HTYPE_SERVER>& server_handle,
OCIHandlePtr<OCISession, OCI_HTYPE_SESSION>& session_handle,
OCIHandlePtr<OCISvcCtx, OCI_HTYPE_SVCCTX>& svc_context_handle)
static const char* FUN = "connect()";
sword result;
// allocate an error handle
if((result = OCIHandleAlloc(
environment_handle,
(void **) &error_handle.fill(),
OCI_HTYPE_ERROR,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// allocate a server handle
if((result = OCIHandleAlloc(
environment_handle,
(void **) &server_handle.fill(),
OCI_HTYPE_SERVER,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
if((result = OCIServerAttach(
server_handle.get(),
error_handle.get(),
(text*)db,
strlen(db),
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIServerAttach", result, error_handle.get());
// allocate a service handle
if((result = OCIHandleAlloc(
environment_handle,
(void **) &svc_context_handle.fill(),
OCI_HTYPE_SVCCTX,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// set the server attribute in the service context handle
if((result = OCIAttrSet(
svc_context_handle.get(),
OCI_HTYPE_SVCCTX,
server_handle.get(),
sizeof(OCIServer*),
OCI_ATTR_SERVER,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// allocate a user session handle
if((result = OCIHandleAlloc(
environment_handle,
(void **)&session_handle.fill(),
OCI_HTYPE_SESSION,
0, // extra memory to allocate
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
// set username and password attributes in user session handle
if((result = OCIAttrSet(
session_handle.get(),
OCI_HTYPE_SESSION,
(text*)user,
strlen(user),
OCI_ATTR_USERNAME,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
if((result = OCIAttrSet(
session_handle.get(),
OCI_HTYPE_SESSION,
(text*)password,
strlen(password),
OCI_ATTR_PASSWORD,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
// start the session
if((result = OCISessionBegin(
svc_context_handle.get(),
error_handle.get(),
session_handle.get(),
OCI_CRED_RDBMS,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCISessionBegin", result, error_handle.get());
// set the user session attribute in the service context handle
if((result = OCIAttrSet(
svc_context_handle.get(),
OCI_HTYPE_SVCCTX,
session_handle.get(),
sizeof(OCISession*),
OCI_ATTR_SESSION,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
ub1 attr_value = 1;
if((result = OCIAttrSet(
server_handle.get(),
OCI_HTYPE_SERVER,
&attr_value,
sizeof(attr_value),
OCI_ATTR_NONBLOCKING_MODE,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrSet", result, error_handle.get());
void disconnect(
OCIEnv* environment_handle,
OCIError* error_handle,
OCIServer* server_handle,
OCISession* session_handle,
OCISvcCtx* svc_context_handle)
static const char* FUN = "disconnect()";
sword result;
if((result = OCISessionEnd(
svc_context_handle,
error_handle,
session_handle,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCISessionEnd", result, error_handle);
if((result = OCIServerDetach(
server_handle,
error_handle,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIServerDetach", result, error_handle);
OCILobLocator* FETCH_BUFFER_1[10000*1024];
char IND_BUFFER_1[10000*1024];
ub2 ERROR_BUFFER_1[1024];
OCIDefine* define_handle_1;
void clear_blob_buf(
OCILobLocator** buf,
unsigned long fetch_size)
for(unsigned long i = 0; i < 1024; ++i)
OCIDescriptorFree(
buf,
(ub4)OCI_DTYPE_LOB);
::memset(buf, 0, fetch_size * 1024);
uint32_t RET_LEN4;
sb4 oci_blob_callback(
dvoid* ctx,
OCIDefine* define,
ub4 iter,
dvoid** bufpp,
ub4** alenpp,
ub1* piecep,
dvoid** indpp,
ub2** rcodepp)
RET_LEN4 = sizeof(OCILobLocator*);
*bufpp = FETCH_BUFFER_1[iter];
*alenpp = &RET_LEN4;
*piecep = OCI_ONE_PIECE;
*indpp = IND_BUFFER_1 + iter;
*rcodepp = ERROR_BUFFER_1 + iter;
//std::cout << "iter: " << iter << std::endl;
return OCI_CONTINUE;
int define_column(
OCIEnv* environment_handle,
OCISvcCtx* svc_handle,
OCIStmt* stmt_handle,
OCIError* error_handle,
OCIDefine** define_handle,
unsigned long pos,
long oci_type,
unsigned long fetch_size,
OCILobLocator** buf,
char* ind_buf,
ub2* err_buf)
static const char* FUN = "define_column()";
sword result;
if(oci_type == SQLT_BLOB)
::memset(buf, 0, fetch_size * 1024);
for(int i = 0; i < 1024; ++i)
if((result = OCIDescriptorAlloc(
(dvoid*)environment_handle,
(dvoid**)&buf[i],
(ub4)OCI_DTYPE_LOB,
(size_t)0,
(dvoid**)0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIDescriptorAlloc", result, error_handle);
ub2 size = 0;
OCIDescriptorPtr<OCIParam, OCI_DTYPE_PARAM> param_handle;
// ub2 oci_data_type = 0;
if((result = OCIParamGet(
stmt_handle,
OCI_HTYPE_STMT,
error_handle,
reinterpret_cast<void**>(&param_handle.fill()),
pos)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIParamGet", result, error_handle);
if((result = OCIAttrGet(
param_handle.get(),
OCI_DTYPE_PARAM,
&size,
0,
OCI_ATTR_DATA_SIZE,
error_handle)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrGet", result, error_handle);
if((result = OCIDefineByPos(
stmt_handle,
define_handle,
error_handle,
pos,
# ifdef _DYN
0,
-1,
#else
buf,
fetch_size,
#endif
oci_type,
ind_buf,
0,
err_buf, // ptr to array of column-level return codes
# ifdef _DYN
OCI_DYNAMIC_FETCH
# else
OCI_DEFAULT
# endif
)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIDefineByPos", result, error_handle);
# ifdef _DYN
if((result = OCIDefineDynamic(
*define_handle,
error_handle,
0,
oci_blob_callback)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIDefineByPos", result, error_handle);
# endif
return 0;
int define_columns(
OCIEnv* environment_handle,
OCISvcCtx* svc_handle,
OCIStmt* stmt_handle,
OCIError* error_handle)
static const char* FUN = "define_columns()";
define_handle_1 = 0;
int pos = 1;
::memset(ERROR_BUFFER_1, 0, 1024 * sizeof(ERROR_BUFFER_1[0]));
define_column(
environment_handle,
svc_handle,
stmt_handle,
error_handle,
&define_handle_1,
pos++,
SQLT_BLOB,
sizeof(OCILobLocator*),
FETCH_BUFFER_1,
IND_BUFFER_1,
ERROR_BUFFER_1);
return 0;
int execute_select(
const char* db,
const char* user,
const char* password)
static const char* FUN = "execute_select()";
const unsigned long FETCH_COUNT = 1024;
OCIHandlePtr<OCIError, OCI_HTYPE_ERROR> error_handle;
OCIHandlePtr<OCIServer, OCI_HTYPE_SERVER> server_handle;
OCIHandlePtr<OCISession, OCI_HTYPE_SESSION> session_handle;
OCIHandlePtr<OCISvcCtx, OCI_HTYPE_SVCCTX> svc_context_handle;
connect(
environment_handle.get(),
db,
user,
password,
error_handle,
server_handle,
session_handle,
svc_context_handle);
OCIHandlePtr<OCIStmt, OCI_HTYPE_STMT> stmt_handle;
sword result;
if((result = OCIHandleAlloc(
environment_handle.get(),
(void**)&stmt_handle.fill(),
OCI_HTYPE_STMT,
0,
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
const char QUERY[] = "SELECT text FROM ADSERVERTEST_BLOB";
ub4 rows = 0;
if((result = OCIAttrSet(
stmt_handle.get(),
OCI_HTYPE_STMT,
(dvoid *)&rows,
(ub4)sizeof(ub4),
OCI_ATTR_PREFETCH_ROWS,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(
FUN, "OCIAttrSet(OCI_ATTR_PREFETCH_ROWS)", result, error_handle.get());
if((result = OCIStmtPrepare(
stmt_handle.get(),
error_handle.get(),
(text*)QUERY,
strlen(QUERY),
OCI_NTV_SYNTAX,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIStmtPrepare", result, error_handle.get());
ub2 stmt_type;
if((result = OCIAttrGet(
stmt_handle.get(),
OCI_HTYPE_STMT,
&stmt_type,
0,
OCI_ATTR_STMT_TYPE,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrGet", result, error_handle.get());
ub4 prev_fetched = 0;
while((result = OCIStmtExecute(
svc_context_handle.get(),
stmt_handle.get(),
error_handle.get(),
0,
0,
0,
0,
OCI_DEFAULT)) != OCI_SUCCESS)
if(result != OCI_STILL_EXECUTING)
throw_oci_error(FUN, "OCIStmtExecute", result, error_handle.get());
define_columns(
environment_handle.get(),
svc_context_handle.get(),
stmt_handle.get(),
error_handle.get());
ub4 all_fetched_count = 0;
while(true)
while((result = OCIStmtFetch2(
stmt_handle.get(),
error_handle.get(),
FETCH_COUNT,
OCI_FETCH_NEXT,
1,
OCI_DEFAULT)) == OCI_STILL_EXECUTING
# ifdef _DYN
// || result == OCI_NEED_DATA
# endif
if (result != OCI_SUCCESS &&
result != OCI_NO_DATA &&
result != OCI_SUCCESS_WITH_INFO)
std::cerr << FUN << ": can't make OCIStmtFetch2: status = " << result;
std::cerr << ", message = '";
text err_buf[1024] = "";
sb4 err_code = 0;
OCIErrorGet(
error_handle.get(),
(ub4)1,
0,
&err_code,
err_buf,
sizeof(err_buf),
(ub4)OCI_HTYPE_ERROR);
std::cerr << err_buf << "', error code = " << err_code << ", row errors: ";
for(const ub2* cur = ERROR_BUFFER_1;
cur < ERROR_BUFFER_1 + 1024; ++cur)
if(*cur)
std::cerr << "#" << (cur - ERROR_BUFFER_1) << ": " <<
*cur << std::endl;
ub4 fetched_count = 0;
if((result = OCIAttrGet (
stmt_handle.get(),
OCI_HTYPE_STMT,
&fetched_count,
0,
OCI_ATTR_ROW_COUNT,
error_handle.get())) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIAttrGet", result, error_handle.get());
all_fetched_count += fetched_count;
if(fetched_count > 0)
for(unsigned long i = 0; i < fetched_count - 1; ++i)
ub4 lob_size;
while((result = OCILobGetLength(
svc_context_handle.get(),
error_handle.get(),
FETCH_BUFFER_1[i],
&lob_size)) == OCI_STILL_EXECUTING)
if(result != OCI_SUCCESS)
throw_oci_error(FUN, "OCILobGetLength", result, error_handle.get());
std::cout << "#" << i << ": ind = " << (unsigned long)IND_BUFFER_1[i] <<
", len = " << lob_size << std::endl;
if(fetched_count - prev_fetched < FETCH_COUNT)
break;
prev_fetched = fetched_count;
clear_blob_buf(
FETCH_BUFFER_1,
sizeof(OCILobLocator*));
while((result = OCIStmtFetch(
stmt_handle.get(),
error_handle.get(),
0,
OCI_FETCH_NEXT,
OCI_DEFAULT)) == OCI_STILL_EXECUTING
disconnect(
environment_handle.get(),
error_handle.get(),
server_handle.get(),
session_handle.get(),
svc_context_handle.get());
return 0;
int execute_update(
const char* db,
const char* user,
const char* password)
static const char* FUN = "execute_update()";
OCIHandlePtr<OCIError, OCI_HTYPE_ERROR> error_handle;
OCIHandlePtr<OCIServer, OCI_HTYPE_SERVER> server_handle;
OCIHandlePtr<OCISession, OCI_HTYPE_SESSION> session_handle;
OCIHandlePtr<OCISvcCtx, OCI_HTYPE_SVCCTX> svc_context_handle;
connect(
environment_handle.get(),
db,
user,
password,
error_handle,
server_handle,
session_handle,
svc_context_handle);
OCIHandlePtr<OCIStmt, OCI_HTYPE_STMT> stmt_handle;
for(int i = 0; i < 1000; ++i)
sword result;
if((result = OCIHandleAlloc(
environment_handle.get(),
(void**)&stmt_handle.fill(),
OCI_HTYPE_STMT,
0,
0)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIHandleAlloc", result, error_handle.get());
std::ostringstream sql;
std::string str;
std::string et("\xEB\xB2\x88");
unsigned long rep = ::rand() % 500 + 1;
str.reserve(rep*et.size());
for(unsigned long ei = 0; ei < rep; ++ei)
str.append(et);
sql << "BEGIN " <<
"UPDATE ADSERVERTEST_BLOB SET text = "
"utl_raw.cast_to_raw('" << str << "') "
"WHERE id = " << i <<
"END;";
if((result = OCIStmtPrepare(
stmt_handle.get(),
error_handle.get(),
(text*)sql.str().c_str(),
sql.str().length(),
OCI_NTV_SYNTAX,
OCI_DEFAULT)) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIStmtPrepare", result, error_handle.get());
while((result = OCIStmtExecute(
svc_context_handle.get(),
stmt_handle.get(),
error_handle.get(),
1,
0,
0,
0,
OCI_DEFAULT)) != OCI_SUCCESS)
if(result != OCI_STILL_EXECUTING)
throw_oci_error(FUN, "OCIStmtExecute", result, error_handle.get());
disconnect(
environment_handle.get(),
error_handle.get(),
server_handle.get(),
session_handle.get(),
svc_context_handle.get());
return 0;
void* select_thread(void* ctx)
while(true)
execute_select(
"//oraclept.ocslab.com/addbpt.ocslab.com",
"bs_unittest_4",
"adserver");
// std::cout << "select finished" << std::endl;
return ctx;
void* update_thread(void* ctx)
while(true)
execute_update(
"//oraclept.ocslab.com/addbpt.ocslab.com",
"bs_unittest_4",
"adserver");
// std::cout << "update finished" << std::endl;
return ctx;
int main()
static const char* FUN = "main()";
sword result;
// allocate an environment handle
if((result = OCIEnvCreate(
&environment_handle.fill(),
OCI_OBJECT | OCI_THREADED,
0, // context
0, // malloc
0, // realloc
0, // free
0, // extra memory to allocate
0) // pointer to user-memory
) != OCI_SUCCESS)
throw_oci_error(FUN, "OCIEnvCreate", result, 0);
pthread_t th1, th2;
pthread_create(&th1, 0, select_thread, 0);
pthread_create(&th2, 0, update_thread, 0);
pthread_join(th1, 0);
pthread_join(th2, 0);
return 0;
Edited by: user13011391 on 20.04.2010 5:50
Edited by: user13011391 on 20.04.2010 6:00
Edited by: user13011391 on 20.04.2010 6:15

How to read Assignment blocks mode options Lazy, Direct etc

Hi,
I need to read the Assignment block mode settings made in configuration i.e, Direct, Lazy etc in a program. Can some one help me out how to get these values for Account assignment block. Based on these modes, i need to programatically control and decide some rules.
Any pointers on this will be very helpful.
Thanks,
Udaya

Hi Udaya,
This is done in class CL_BSP_WD_OVW_VIEWSET, method DO_INIT_CONFIG
* get configuration in xml language
me->configuration_descr->get_config_data(
    RECEIVING rv_result = lv_config_xml
    EXCEPTIONS foreign_lock = 1
               config_not_found = 2 ).
* transform configuration xml into table definition
CALL METHOD cl_bsp_dlc_config_ovw=>conv_xml_to_data(
              EXPORTING iv_xml = lv_config_xml
              IMPORTING rt_data = ls_assgnm_xml ).
lt_assignm = ls_assgnm_xml-views.
* conversion of the load options (direct,expanded=abap_true and lazy,collapsed=abap_false)
LOOP AT lt_assignm ASSIGNING <f>.
      <f>-traymode = XXX
Possible values (XXX in the code) are:
CL_BSP_WD_OVW_VIEWSET=>C_DIRECTMODE_ID
CL_BSP_WD_OVW_VIEWSET=>C_LAZYMODE_ID
CL_BSP_WD_OVW_VIEWSET=>C_HIDEMODE_ID
Regards,
Fabian

Where do changed data values goto if DB is in BACKUP mode for LONG PERIODs

Where does oracle write if put the database in begin backup mode for LONG PERIODs. Lets say I issued a "ALTER DATABASE BEGIN BACKUP" command in a busy database and forgot about it for a long time.
I understand that when the DB IS IN BEGIN BACKUP MODE, "the database copies whole changed data blocks into the redo stream." (Page 503 of 11.1 backup and recovery guide). But the redo stream is limited by the number of online redologs. After some time redologs also wont be sufficient for the changed data values after a begin backup is issued. I understand that there are archived redologs.
Lets say there are 2 redolog groups in this database and Lets say 10 archive log files got generated since the ALTER DATABASE BEGIN BACKUP was issued.
When i finally issue the "ALTER DATABASE END BACKUP" command, will Oracle sync the datafiles with the changed data blocks reading the data from these 10 archived log files ? What happens if i delete these archive redologs from the archive log destination. ??
page 504 of 598 in the backup and recovery guide
Caution : If you fail to take the tablespace out of backup mode,
then Oracle Database continues to write copies of data blocks in
this tablespace to the online redo logs, causing performance
problems. Also, you receive an ORA-01149 error if you try to shut
down the database with the tablespaces still in backup mode.
it just says "performance problems", nothing more than that.*
Any answers ? I am sure this question would have popped to some of you senior DBA people out there.

user13076519 wrote:
Where does oracle write if put the database in begin backup mode for LONG PERIODs. Lets say I issued a "ALTER DATABASE BEGIN BACKUP" command in a busy database and forgot about it for a long time. It writes just like it always does, plus it puts some extra in the redo log the [url http://oraclenz.com/2008/07/11/logging-or-nologging-that-is-the-question-part-ii/]first time a block is changed.
>
>
I understand that when the DB IS IN BEGIN BACKUP MODE, "the database copies whole changed data blocks into the redo stream." (Page 503 of 11.1 backup and recovery guide). But the redo stream is limited by the number of online redologs. After some time redologs also wont be sufficient for the changed data values after a begin backup is issued. I understand that there are archived redologs. This appears to be a typo (incompleteness, really) in the backup and recovery guide.
The redo stream is not limited by the number of of redo logs, only the volume of data. When a log fills up, it gets archived. If all the logs get filled up before the first one is finished archiving, the db will stall until the next redo becomes available. The only limit to archiving is disk space (and bandwidth if that is an issue, which it can be in some configurations).
>
Lets say there are 2 redolog groups in this database and Lets say 10 archive log files got generated since the ALTER DATABASE BEGIN BACKUP was issued.
When i finally issue the "ALTER DATABASE END BACKUP" command, will Oracle sync the datafiles with the changed data blocks reading the data from these 10 archived log files ? What happens if i delete these archive redologs from the archive log destination. ??Archived logs are archived, Oracle only reads them in recovery. You do not understand archive logs, read the concepts manual.
>
page 504 of 598 in the backup and recovery guide
Caution : If you fail to take the tablespace out of backup mode,
then Oracle Database continues to write copies of data blocks in
this tablespace to the online redo logs, causing performance
problems. Also, you receive an ORA-01149 error if you try to shut
down the database with the tablespaces still in backup mode.
it just says "performance problems", nothing more than that.*Because it is overgeneralizing.
>
Any answers ? I am sure this question would have popped to some of you senior DBA people out there.Oh, you want to send me a gift for showing where in oracle it's documented? See [url http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:271815712711]here for something over a decade old.

ASM is in blocked mode, is it normal ?

I have database version 10.2.0.1.0 for x86 linux, the Linux is "RedHat Enterprise Linux AS 4 Update 2"
I have standardli installed ASM as it is described in Oracle Administrator's Guide. If I look at the listener i see this:
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 22-MAR-2006 12:05:17
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=pc71)(PORT=1521)))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 22-MAR-2006 12:02:35
Uptime 0 days 0 hr. 2 min. 42 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /db0/app/oracle/product/10.2.0/network/admin/listener.ora
Listener Log File /db0/app/oracle/product/10.2.0/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=pc71)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM", status BLOCKED, has 1 handler(s) for this service...
Service "+ASM_XPT" has 1 instance(s).
Instance "+ASM", status BLOCKED, has 1 handler(s) for this service...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
What is the second service of ASM named "+ASM_XPT" ?
And why the services are in BLOCKED mode ?
Thanks for answer.

I had a similar issue with my 3G it turned out to be a faulty switched so apple gave me a new phone! gotta love there support! set up an appointment granted you are still under warranty and such. If you are not sure you an find out through the support link on apples page. i believe its under the apple care stuff. Good luck

Is UDPDatagramConnection's send() method in blocking mode?

Hello,
I need your help in order to clarify this problem. I'd like to know if the send() method of UDPDatagramConnection is in blocking mode by default (Or is there any possiblity to verify it?).
Thanks in advance for your response,
Luubi.

Since it throws InterruptedIOException for timeouts of interrupts I'm gessing this is a blocking method.

Debug Mode for CustomRealm

( maybe see as well entry #27 in this list)
For debugging / logging from my ( now working) CustomRealm implements DebugableRealm, i tried to set DebugSecurityRealm=true. Starting WL Server gives the behaviour, described in thread 27.
As well instanciating a new LogOutoustream results in runtime Stackoverflow.
The same thing works well wit a custom AuditProvider.
Are there sulutions to this problem ?
Thanks,
Paul

Thanks for the comment. i implmented my own debug file, so i can live with it for now.
Paul
"Suresh Vallabhaneni" <[email protected]> wrote:
>
Hi Paul
Sorry for the late reply. First of all, thank you for uncovering an untested part of ServerDebug MBean. The Debug Mode for Security Realms currently works for fileRealm but doesnot work for alternate realms(e.g., LDAP realm). We're in the process of fixing this in the future releases(may not be Beta Refresh but will definitely be fixed in GA). I'm attaching a working config.xml(with fileRealm) and the only change you've to make to your config.xml is
<Server
<ServerDebug
DebugSecurityRealm="true"
Name="myserver"
/>
</Server>
If you're debugging a fileRealm then I belive, this serves your purpose. But if you're debugging a Security Realm other than fileRealm and this is blocking you, plz let us know so that this will be fixed with a higer priority. Thanks again for uncovering this.Will let you know as soon as this is fixed.
regards
"Paul Hettl" <[email protected]> wrote:
( maybe see as well entry #27 in this list)
For debugging / logging from my ( now working) CustomRealm implements DebugableRealm, i tried to set DebugSecurityRealm=true. Starting WL Server gives the behaviour, described in thread 27.
As well instanciating a new LogOutoustream results in runtime Stackoverflow.
The same thing works well wit a custom AuditProvider.
Are there sulutions to this problem ?
Thanks,
Paul

Debug-Mode for Security Realm

Hi,
then i try start the server with the debug mode i get the following
exception:
Starting WebLogic Server ....
<Tue Oct 24 17:45:33 GMT+02:00 2000> <Info> <Management> <Loading
configuration file .\config\virtHoDomain\config.xml...>
Unable to dump log: Fatal initialization exception
Throwable: java.lang.StackOverflowError
java.lang.StackOverflowError
at java.util.Collections$SynchronizedMap.get(Collections.java:1433)
at
weblogic.kernel.ResettableThreadLocal.currentStorage(ResettableThreadLocal.j
ava:100)
at
weblogic.kernel.ResettableThreadLocal.get(ResettableThreadLocal.java:35)
at
weblogic.transaction.internal.TransactionManagerImpl.getOrCreateThreadProp(T
ransactionManagerImpl.java:844)
at
weblogic.transaction.internal.TransactionManagerImpl.getTransaction(Transact
ionManagerImpl.java:359)
at weblogic.transaction.TxHelper.getTransaction(TxHelper.java:34)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:156)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
at weblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
at weblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
at weblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
at weblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
at weblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
at weblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
I even get that exeception if try to initialize the
weblogic.logging.LogManager in a commun class.
I think this is a bug.

Hi Lars Klippert
Sorry for the late reply. First of all, thank you for uncovering an untested part of ServerDebug MBean. The Debug Mode for Security Realms currently works for fileRealm but doesnot work for alternate realms(e.g., LDAP realm). We're in the process of fixing this in the future releases(may not be Beta Refresh but will definitely be fixed in GA). I'm attaching a working config.xml(with fileRealm) and the only change you've to make to your config.xml is
<Server
<ServerDebug
DebugSecurityRealm="true"
Name="myserver"
/>
</Server>
If you're debugging a fileRealm then I belive, this serves your purpose. But if you're debugging a Security Realm other than fileRealm and this is blocking you, plz let us know so that this will be fixed with a higer priority. Thanks again for uncovering this. We will let you know as soon as this is fixed.
regards
"Lars Klippert" <[email protected]> wrote:
Hi,
Part from config.xml:
<Server ...>
<ServerDebug Name="virtHoServer" DebugSecurityRealm="false"/>
</Server>
Part from my start-script:
%JAVA_HOME%\bin\java.exe -ms16m -mx64m -classpath
%CLASSPATH% -Dweblogic.Domain=virtHoDomain -Dweblogic.Name=virtHoServer -Dja
va.security.policy==.\lib\weblogic.policy weblogic.Server
As you can see i enable the debug-mode in the config.xml.
I also get the exception then i disable the debug-modus and
initialize the weblogic.logging.LogOutputStream by hand.
For our EntityBeans we have developed a custom error logger
that uses the weblogic.logging.LogOutputStream and it works
fine. Maybe the error only acccours if two or more
weblogic.logging.LogOutputStreams are active...
With the 5.1.0 version of the server everything works fine.
Thanks
"Paul Ferwerda" <[email protected]> schrieb im Newsbeitrag
news:[email protected]...
How exactly are you starting "the server with debug mode"?
Thanks,
Paul
Lars Klippert wrote:
Hi,
then i try start the server with the debug mode i get the following
exception:
Starting WebLogic Server ....
<Tue Oct 24 17:45:33 GMT+02:00 2000> <Info> <Management> <Loading
configuration file .\config\virtHoDomain\config.xml...>
Unable to dump log: Fatal initialization exception
Throwable: java.lang.StackOverflowError
java.lang.StackOverflowError
at
java.util.Collections$SynchronizedMap.get(Collections.java:1433)
at
weblogic.kernel.ResettableThreadLocal.currentStorage(ResettableThreadLocal.j
ava:100)
at
weblogic.kernel.ResettableThreadLocal.get(ResettableThreadLocal.java:35)
at
weblogic.transaction.internal.TransactionManagerImpl.getOrCreateThreadProp(T
ransactionManagerImpl.java:844)
at
weblogic.transaction.internal.TransactionManagerImpl.getTransaction(Transact
ionManagerImpl.java:359)
atweblogic.transaction.TxHelper.getTransaction(TxHelper.java:34)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:156)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
atweblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
atweblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
atweblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
atweblogic.logging.LogOutputStream.debug(LogOutputStream.java:80)
atweblogic.security.acl.CachingRealm.getUser(CachingRealm.java:775)
atweblogic.security.acl.Security.getCurrentUser(Security.java:238)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:161)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:145)
at
weblogic.management.logging.LogBroadcaster.log(LogBroadcaster.java:138)
at weblogic.logging.LogManager.log(LogManager.java:93)
I even get that exeception if try to initialize the
weblogic.logging.LogManager in a commun class.
I think this is a bug.

Writing binary files in block mode?

I am sampling two channels in continuous mode using labview basic version. I would like to take the two arrays of values as I am sampling them and write them out in block mode to a binary file. What's the best way to do that?

Open or create a file for write before daq starts, then continuously write data to the file, and close it after the daq is stopped. Make sure each column of the data array is each channel, so an Array transpose might be needed.
-Joe
Attachments:
Snap8.gif ‏8 KB

Datafiles in swapping mode - for performance

Hi there,
One of the Senior DBAs told me that it is better to keep the datafiles in swapping mode, which means..
Suppose we need to create 4 Tablespaces, 2 for data files and 2 for index files and we have two drives called E, F. In this case he said, the performance will be increased if we prepare
E drive
Datafile_Tablespace_A (datafile TS no. 1)
Index_Tablespace_D (index TS for datafile no.2)
F drive
Index_Tablespace_B (index TS for datafile no.1)
Datafile_Tablespace_C (datafile TS no. 2)
According to him, Oracle works better in swapping mode, is it true? I was under the impression that index and datafile tablespaces should be built on separate drives.
Even though my quetions is in general, for reference - The OS we are using is windows 2003 server and parition is Raid-5 and the Oralce 10.2.0.1 version.
If anybody can clarify, I would be obliged.
Thanks

I'm going to default to one of Billy's responses:
{message:id=4060608}
>
Irrelevant as that does not change any of the storage fundamentals in Oracle. The database does not know or care what you use as storage system.. why should it? It is the kernel and disk/file system drivers job to deal with the actual storage hardware. From a database perspective, it wants the ability to read() and write() - in other words, use the standard I/O interface provided by the kernel.
I/O performance must not be factor. If it is, then you storage layer is incorrectly designed and implemented. Striping (RAID 0) for example must be dealt with at the storage layer and not at the application layer. Tablespaces and datafiles in Oracle makes extremely poor tools to implement striping of any sort. It does not make sense to attempt I/O balancing such as striping at tablespace and datafile level in Oracle.
So why then use separate tablespaces? You may need different tablespaces to implement different block sizes for performance.. but this is an exception to the rule. And you do not address actual storage performance here, but more how Oracle should manage the smallest unit of data in the tablespace.
So besides this exception, what other reasons? Could be you want to physically separate one logical data base (Oracle schema) from another. Could be that you want to implement transportable tablespaces.
All these requirements are quite explicit in that more than one tablespace is needed. If there is no such requirement, why then consider using multiple tablespaces? It only increases the complexity of space management.
Consider using different tablespaces for indexes and table data. In a year's time, you may find that the index tablespace has been oversized and the data tablespace undersized. You now have too much space on the one hand, too little on the other, and no easy way to "move" the freespace to where it is needed.
It is far easier to deal with a single tablespace - as it allows far more flexibility in how you use that for data and index objects, then attempting some kind of split.
So I will look for a sound and unambiguous technical requirement that very clearly says "multiple tablespaces needed". If not, I will not beat myself over the head trying to find reasons for implementing multiple tablespaces.>
There are also many other threads on this forum about separating data and indexes, try and search for them.

Sockets in non-blocking mode

Hello Techies,
How to set sockets in the non-blocking mode and what is the main use of setting sockets in non-blocking mode.
regards,
Ramu.

Hello Techies,
Thanks for u r replies,
Finally i had understood how to use nio. But the problem is it is going into infinite loop. Here is my code.
package networking;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.util.Iterator;
public class testSocketChannel {
      * @param args
     public static ByteBuffer buf ;
     public static SocketChannel clientChannel;
     public static void main(String[] args) {
          // TODO Auto-generated method stub
                    try
                         Selector selector = Selector.open();
                     clientChannel = SocketChannel.open();
                  clientChannel.configureBlocking(false);
                  // Send a connection request to the server; this method is non-blocking
                  clientChannel.connect(new InetSocketAddress("localhost",90));
                  clientChannel.register(selector,clientChannel.validOps());
//                Wait for events
                  while (true)
                      try {
                          // Wait for an event
                          selector.select();
                      } catch (IOException e) {
                          // Handle error with selector
                          //break;
                      // Get list of selection keys with pending events
                      Iterator it = selector.selectedKeys().iterator();
                      // Process each key at a time
                      //while (it.hasNext())
                           for(int i = 0;i<selector.selectedKeys().size();i++)
                          // Get the selection key
                          SelectionKey selKey = (SelectionKey)it.next();
                          // Remove it from the list to indicate that it is being processed
                          it.remove();
                          try
                      // processSelectionKey(selKey);
                                if (selKey.isValid() && selKey.isConnectable()) {
                                   // Get channel with connection request
                                   SocketChannel sChannel = (SocketChannel)selKey.channel();
                                   boolean success = sChannel.finishConnect();
                                   if (!success) {
                                       // An error occurred; handle it
                                       // Unregister the channel with this selector
                                       selKey.cancel();
                               if (selKey.isValid() && selKey.isReadable()) {
                                   // Get channel with bytes to read
                                    clientChannel = (SocketChannel)selKey.channel();
                                   System.out.println("INSIDE reading");
                                   // See e174 Reading from a SocketChannel
                                   // Clear the buffer and read bytes from socket
//                                 Clear the buffer and read bytes from socket
                                  // ByteBuffer byteBuffer = ByteBuffer.allocate( BUFSIZE );
                                   buf = ByteBuffer.allocateDirect(1024);
                                   int nbytes = clientChannel.read( buf );
                                   buf.flip();
                                   Charset charset = Charset.forName( "us-ascii" );
                                   CharsetDecoder decoder = charset.newDecoder();
                                   CharBuffer charBuffer = decoder.decode( buf );
                                   String result = charBuffer.toString();
                               if (selKey.isValid() && selKey.isWritable()) {
                                   // Get channel that's ready for more bytes
                                   //SocketChannel sChannel = (SocketChannel)selKey.channel();
                                   System.out.println("INSIDE writting");
                                   // See e175 Writing to a SocketChannel
                                 String message = "hi";
                                  buf = ByteBuffer.wrap( message.getBytes() );
                                   int nbytes = clientChannel.write( buf );
                                   System.out.println( "Wrote " + nbytes + " to channel." );
                          catch (IOException e) {
                                   // TODO: handle exception
                               System.out.println("IOException"+e.getMessage());
                    catch (IOException ioe) {
                         // TODO: handle exception
                         System.out.println("IOException"+ioe.getMessage());
}How to stop this infinite loop.
Need quick replies.
Ramu

Why was blocking mode disabled from GS3?

I do not understand why blocking mode was disabled from the latest update, it was very useful tool for me as I have trouble sleeping. Last night my phone drove me crazy, LED blinking, emails, texts etc... I finally turned my phone off, which would defeat the purpose of having the people on my favorites to contact me in case of an emergency. Please some one explain to me why we are not allowed to have blocking mode enabled...

I feel your pain. My Sprint Samsung Galaxy S3 has blocking mode readily available. My Verizon version of the S3 does not. Why? It's not just a nice feature, I truly need it.
Come on Verizon. Post an update for the phone or at least instructions how to enable/access the setting.

TDM Block mode for Diadem 9.1

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