How to create instance in linux

Hi guys
how to create instance in linux? I know that in order to create a instance in window, we can use oradim cmd. But what about linux?

user11148588 wrote:
hi
after i performed DR. DBCA does not show the recovery database. can anyone advise me what i should do in order for DBCA to display the database?DBCA gets its knowledge of existing databases from the oratab file. Did you create an entry there? Most *nix OS's will have it in the /etc directory; if I remember correctly it will be in /var/opt on Solaris.

Similar Messages

How to Create NFS in Linux

Hi all,
I am very much new to Linux Admin, i am basically working as a apps dba, i have two servers, i installed Oracle Linux on that, now i want to create NFS file system, i have created u01 mount pioint in Linux1 and u01 in linux 2 with same space , i am able to ping both servers and i am able to do ftp both servers, could any one explain me how to create NFS in linux servers,
Thanks

On the server, edit the file <tt>/etc/exports</tt> to list the directories you
want NFS to offer, and to which systems they should be offered:
/u01 *(rw,sync,no_root_squash)
/u02 *(rw,sync,no_root_squash)
/u03 *(rw,sync,no_root_squash)The <tt>*</tt> matches any system/network and the <tt>(rw)</tt> says let the
other systems read and write the tree, the <tt>sync</tt> forces the server NFS
to finish the I/O before telling the clients the I/O is done, and the optional
<tt>no_root_squash</tt> lets root on a client system access the files as if
they were root on the NFS server; this may not be what you want.
# /sbin/chkconfig nfs on
# /sbin/service nfs startOn the NFS client, edit the <tt>/etc/fstab</tt> file to have lines that look
like this:
myserver:/u01 /u01 nfs rw,rsize=32768,wsize=32768,sync,nointr,hard 0 0
myserver:/u02 /u02 nfs rw,rsize=32768,wsize=32768,sync,nointr,hard 0 0
myserver:/u03 /u03 nfs rw,rsize=32768,wsize=32768,sync,nointr,hard 0 0and then from the client make sure you can see the offered files:
# /usr/sbin/showmount -e myserverand if you can, do this on the client:
# mkdir /u01 /u02 /u03
# mount /u01
# mount /u02
# mount /u03If the clients ever reboot, the NFS files will be mounted automatically and you
will not need these last 3 commands.
The RDBMS has its own requirements for the options in the <tt>/etc/fstab</tt>
entry, so the <tt>rw,rsize=...</tt> example may need to be adjusted a little.
Happy NFS'ing.

How to Create Instances in the Transient Root Node and Sub Nodes from Root Node Query Method ?

Hi All,
I am Creating a BOPF BO with 3 Nodes,
Node 1) ROOT -- > contains a query,
using Root Node I have created Search UIBB Configuration in FBI.
In testing -- > when i enter Data in the Search Criteria Fields am able to get the details in to the query method
from Imporing parameter : 'IT_SELECTION_PARAMETERS'.
HERE I am fetching data from a standard table and trying to fill the data in the Node : 'MNR_SEARCH_RESULT'.
How to Append data to the Sub node 'MNR_SEARCH_RESULT' when there is no Node instance created in the ROOT Node ?
For This I have created an instance in the ROOT Node and Using that I tried to create Instance in the Sub Node 'MNR_SEARCH_RESULT'.
Below is my code which i have placed in the Query method ..
DATA : LR_DATA TYPE REF TO ZBO_S_ROOT1.
DATA : LR_SEARCH_RES TYPE REF TO ZBO_S_MNR_SEARCH_RESULT.
DATA : LO_CI_SERVICE_MANAGER TYPE REF TO /BOBF/IF_TRA_SERVICE_MANAGER,
 LO_TRANSACTION_MANAGER TYPE REF TO /BOBF/IF_TRA_TRANSACTION_MGR.
 LO_CI_SERVICE_MANAGER = /BOBF/CL_TRA_SERV_MGR_FACTORY=>GET_SERVICE_MANAGER( IV_BO_KEY = ZIF_BO_TEST_PO_C=>SC_BO_KEY ).
 LO_TRANSACTION_MANAGER = /BOBF/CL_TRA_TRANS_MGR_FACTORY=>GET_TRANSACTION_MANAGER( ).
CREATE DATA LR_DATA.
LR_DATA->KEY = LO_CI_SERVICE_MANAGER->GET_NEW_KEY( ).
LR_DATA->ROOT_KEY = IS_CTX-ROOT_NODE_KEY.
LR_DATA->PIPO_MAT_ID = '100100'.
LR_DATA->PIPO_MAT_DESC = 'MATERIAL'.
LR_DATA->PIPO_SPRAS = 'E'.
LR_DATA->PIPO_MATL_TYPE = 'ZPMI'.
LR_DATA->PIPO_MATL_GROUP = 'ZKK'.
 DATA lt_mod TYPE /bobf/t_frw_modification.
 DATA lo_change TYPE REF TO /bobf/if_tra_change.
 DATA lo_message TYPE REF TO /bobf/if_frw_message.
 FIELD-SYMBOLS: <ls_mod> LIKE LINE OF lt_mod.
 APPEND INITIAL LINE TO lt_mod ASSIGNING <ls_mod> .
 <ls_mod>-node = ZIF_BO_TEST_PO_C=>sc_node-ROOT.
 <ls_mod>-change_mode = /bobf/if_frw_c=>sc_modify_create.
 <ls_mod>-key = LR_DATA->KEY.
 <ls_mod>-data = LR_DATA.
DATA : LT_CHG_FIELDS TYPE /BOBF/T_FRW_NAME.
DATA : LS_CHG_FIELDS LIKE LINE OF LT_CHG_FIELDS.
DATA : LV_KEY TYPE /BOBF/CONF_KEY.
CALL METHOD IO_MODIFY->CREATE
 EXPORTING
 IV_NODE = ZIF_BO_TEST_PO_C=>sc_node-ROOT
 IV_KEY = LR_DATA->KEY
 IS_DATA = LR_DATA
 IV_ROOT_KEY = IS_CTX-ROOT_NODE_KEY
 IMPORTING
 EV_KEY = LV_KEY .
CREATE DATA LR_SEARCH_RES.
LR_SEARCH_RES->KEY = LO_CI_SERVICE_MANAGER->GET_NEW_KEY( )..
LR_SEARCH_RES->PARENT_KEY = LV_KEY.
LR_SEARCH_RES->ROOT_KEY = LV_KEY.
LR_SEARCH_RES->MATNR = '123'.
LR_SEARCH_RES->ERSDA = SY-DATUM.
LR_SEARCH_RES->ERNAM = SY-UNAME.
**LR_SEARCH_RES->LAEDA = .
**LR_SEARCH_RES->AENAM = .
**LR_SEARCH_RES->VPSTA = .
*LR_SEARCH_RES->LVORM = .
LR_SEARCH_RES->MTART = 'ZPI'.
LR_SEARCH_RES->MBRSH = 'ZTP' .
LR_SEARCH_RES->MATKL = 'MAT'.
**LR_SEARCH_RES->BISMT = ''
**LR_SEARCH_RES->MEINS =
CALL METHOD io_modify->create
 EXPORTING
 iv_node = ZIF_BO_TEST_PO_C=>sc_node-MNR_SEARCH_RESULT
 is_data = LR_SEARCH_RES
 iv_assoc_key = ZIF_BO_TEST_PO_C=>sc_association-root-MNR_SEARCH_RESULT
 iv_source_node_key = ZIF_BO_TEST_PO_C=>sc_node-root
 iv_source_key = LV_KEY
 iv_root_key = LV_KEY.
I am Unable to set data to the Node . I did not get any error message or Dump while executing . when i tried to retrive data I got the details from the node but am unable to view those details in the FBI UI and BOBT UI while testing .
Please provide your valuable Suggestions.
Thanks in Adv.
Thanks ,
Kranthi Kumar M.

Hi Kranthi,
For your requirement you need only two nodes. Root Node and Result node. Use the same structure for both.
To create Instance while search.
Create Query method with input type which has the required fields for selection criteria.
Fetch the data and create instance in the root node.
Pass the new instance key as exporting parameter form Query Method.
To Move data from ROOT to Result.
Create a action at root node.
Write a code to create new entries in Result node.
Then configure the Search UIBB and display result in List UIBB. Add button and assign the action MOVE_MAT_2_RESULT.
Create another List uibb to display data from Result node.
Connect the UIBBs using wire schema. SEARCH -> LIST(ROOT) ---> LIST(RESULT).
Give src node association for ROOT to RESULT Configuration.
Regards,
Sunil

How to create instance object of Attachments2

I am trying to add attachments to Activities i.e. contacts. I read in 2005, Attachments2 replaces Attachments.
1) Just want to to know how to attach documents to Activities using Attachments2.
2) Or How to create an instance for Attachments2?
Many Thanks

I am not sure if I understand your question but anyway this is all described in the SDK help.
Each of these objects
Contacts, ContractTemplates, CustomerEquipmentCards, EmployeeInfo, KnowledgeBaseSolutions, Messages, Message, SalesOpportunities, and ServiceContracts.
has an Attachements property that from 2005 onwards this is an Attachements2 object. So if you get the father object you will get also the attachement collection in memory.

How to create instance of IProxy

can anyone help me how to create or get instance of of IProxy for Flexible UI ?
All i wanna do is to display content of ICollection object in iview using Flexible UI by simplest possible way
I don't wanna implement anything till it's not necessary
I just wanna use predefined layouts and components to display it
i'm trying to write something like this, but may be i'm completly wrong:
public void doProcessBeforeOutput() throws PageException {
Form myForm = this.getForm();
IResourceContext resourceContext = new ResourceContext(null);
URI uri = new URI("/");
IResource res = ResourceFactory.getInstance().getResource(uri,resourceContext);
ICollection col = (ICollection)res;
ICollectionRenderer cr = CollectionRendererFactory.getInstance().getCollectionRenderer(<missing IProxy>, col, IFlavorConst.FLAVOR_LIST);
myForm.addComponent(cr.renderAll());
but i still don't know what to use instead of <missing IProxy>

Hi Jurako,
// Create interaction
IInteraction interaction = client.createInteractionEx();
IInteractionSpec interactionSpec = interaction.getInteractionSpec();
interactionSpec.setPropertyValue("Name", "REMOTE_FUNCTION_MODULE_NAME");
// Create IFunction instance
IFunctionsMetaData functionsMetaData = client.getFunctionsMetaData();
IFunction function
= functionsMetaData.getFunction("REMOTE_FUNCTION_MODULE_NAME");
PS: Please reward points for helpful answer. thank you.

How to create instances for RAC?

Could you please let me know under RAC environment we have one database and more then one instances pointing to that Database. For example, I want to create two instances under two nodes RAC? Could any body tell me how to create Database and two different instances poiting to that Database?
Thanks

http://download-uk.oracle.com/docs/cd/B19306_01/rac.102/b14197/toc.htm
http://download-uk.oracle.com/docs/cd/B19306_01/install.102/b14203/toc.htm
http://www.oracle.com/technology/pub/articles/chan_sing2rac_install.html
Hope that helps

How to create instance of IRecordSet

I need to create instance of
com.sapportals.connector.execution.structures.IRecordSet
I need to fillup importTable when proceeding BAPI call
Now i'm doing it this way:
MappedRecord output = (MappedRecord) ix.execute(ixspec, input);
Object inTable = output.get("REQUISITION_ITEMS");
((IRecordSet)inTable).insertRow();
((IRecordSet)inTable).setString("DOC_TYPE","NB");
input.put("REQUISITION_ITEMS", ((IRecordSet)inTable));
output = (MappedRecord) ix.execute(ixspec, input);
I'm calling 'ix.execute(ixspec, input)' twice
First time just to get instance of IRecordSet inTable
and second time for executing BAPI call
I think there must be better way to get that instance
Please help

Hi Jurako,
// Create interaction
IInteraction interaction = client.createInteractionEx();
IInteractionSpec interactionSpec = interaction.getInteractionSpec();
interactionSpec.setPropertyValue("Name", "REMOTE_FUNCTION_MODULE_NAME");
// Create IFunction instance
IFunctionsMetaData functionsMetaData = client.getFunctionsMetaData();
IFunction function
= functionsMetaData.getFunction("REMOTE_FUNCTION_MODULE_NAME");
PS: Please reward points for helpful answer. thank you.

How to create instance of user defined suite

I have create one user defined suite interface (ISuite) and inherite it to IsuiteASB and IsuiteCSB . The purpose of creating user defined suite is to provide hyphenation for selected text. I want to add a method which will detect whether a text has been selected by user or not , if selected then I am calling one hyphator function. I am not able to create an instance of user defined suite . I am using following syntax: in UpdateActionState I am using InterfacePtr<ISuite>suite(ac->GetContextSelection(),UseDefaultIID()); in one user defined method I am using InterfacePtr<ISuite>suite(Utils<ISelectionUtils>()->GetActiveSelection() , UseDefaultIID()); Both calls unsuccessfull. Which Interface I should use to detect whether Text has been selected by user or ITextUtils or any other. Please tell me the preoper way to create interface suite and create instance of it. Thank you.

I've seen this wording before ... Wait -- you must be referring to the SDK. Better post your question in the SDK forum, we're just helpless end-users, and in this case, clueless as well.

Urgent - How to create instance of Business Object in workflow at runtime

Hi all,
I have a requirement as follows...
1) I have a Business Object ISUPOD in which the Key field is Pointof Delivery
2) I am getting the value for Pointof Delivery in the step-2 of my workflow.
3) Now I want to create a instance for the Business Object using this key field value in my Workflow at runtime and use the instance in the following steps.
How can I do this ???
Thanks,
Sivagami

Hi Ravi,
Thanks for the solution...
There is also a wizard that will generate an activity to do this. We have to just go to Wizards->Include "Create Object Reference" which will create the task with the BO & Method referred by you.
Thanks,
Sivagami

How to create instance db to load BISAMPLE data

when I load BISAMPLE_DATA_825.zip data,the following message error(ORA-01855):
在行 57,845 上开始执行命令时出错:
Insert into SAMP_EMPL_D_VH (EMPLOYEE_KEY,EMPL_NAME,POSTN_KEY,HIRE_DT,MGR_ID,TYPE) values (26,'Sophie Bergman',2,to_timestamp('2000/11/03 12.00.00.000000000 AM','RRRR/MM/DD HH.MI.SS.FF AM'),27,'TYPE 2')
错误报告:
SQL 错误: ORA-01855: 要求 AM/A.M. 或 PM/P.M.
01855. 00000 - "AM/A.M. or PM/P.M. required"
*Cause:
*Action:

Cloning DB
http://dba.shilpatech.com/cloningdb.html
Depending on if it is archivelog or noarchivelog mode .
WINDOWS
Please follow the steps above for creating the spfile.
Once you have the spfile ready, please create the service for the oracle database:-
oradim -new oracleserviceLCLYM -syspwd oracle -startupmode manual -pfile
'c:\oracle\product\db_1\database\init<SID>ora'
This will create a new service.
In order to start the service
net start oracleserviceLCLYM
if the service is already running then a message will be displayed by the windows machine that the service is already running.
sqlplus /nolog
startup nomount;
Connect to tape, get the control file.
reconnect to tape, get the datafile(s). Restore / recover.

Create instance manually

1. My requirement is to create a database on a system, which has one instance already running.
2. How to create instance in LINUX(oradim = windows) or can I go directly and create database using the below procedure?
1.set variable
2. create file initsid.ora, orapwd
3. create database?
Please help

Unix like systems and windows work in different ways due to architecture differences. Oracle on windows requires the oradim command to be run prior to start up an instance. On unix like systems, since they don't require services, you can directly set the ORACLE_SID environment variable, have your parameter file (either pfile or spfile) properly configured and parameterized and startup your instace with the startup nomount command.
If you are planning to manually create a database with this procedure I suggest you to take a look at the CREATE DATABASE command, there are many more issues that go beyond the scope of a single post in a thread.
~ Madrid
http://hrivera99.blogspot.com/

Create instance of class

Hi all,
I have problem with creating static fields in class. I have separate packages in my project and I need to have instances for all classes in this packages. I create instance of class using next code:
public class Digest
   private static Digest digest = null;
   protected Digest ()
public static Digest getInstance()
         if(digest == null)
          digest = new Digest();
        return digest;
public static void clearInstacePool()
         digest = null;
}But I have problem with deleting my packages and applet after I call Digest.getInstance(). I need to implement clearInstacePool() method to set reference of digest to null in unistall() method of my applet. Question is: how to create instance of class without implementing clearInstacePool()?

Question is: how to create instance of class without implementing clearInstacePool()?That question doesn't make sense,or at least it is ambiguous. 'Create instance' usually involves the 'new' operator, which has nothing to do with what methods are implemented. Do you mean how to code the class without implementing clearInstancePool()?

How to create an asm instance manaually? oracle 11gr2.

env: oracle 11gr2 os: hpux or aix single machine , not rac.
question:how to create an asm instance manaually?? diskgroup,listener,db ,they can be resigistered to crs??
can anyone give me document about it?

Hi,
This is a simple answer:
Automatic Storage Management (ASM)
ASM was a new storage option introduced with Oracle Database 10gR1 that provides the services of a filesystem, logical volume manager, and software RAID in a platform-independent manner. ASM can stripe and mirror your disks, allow disks to be added or removed while the database is under load, and automatically balance I/O to remove "hot spots." It also supports direct and asynchronous I/O and implements the Oracle Data Manager API (simplified I/O system call interface) introduced in Oracle9i.
ASM is not a general-purpose filesystem and can be used only for Oracle data files, redo logs, and control files. Files in ASM can be created and named automatically by the database (by use of the Oracle Managed Files feature) or manually by the DBA. Because the files stored in ASM are not accessible to the operating system, the only way to perform backup and recovery operations on databases that use ASM files is through Recovery Manager (RMAN).
ASM is implemented as a separate Oracle instance that must be up if other databases are to be able to access it. Memory requirements for ASM are light: only 64 MB for most systems.
Installing ASM
On Linux platforms, ASM can use raw devices or devices managed via the ASMLib interface. Oracle recommends ASMLib over raw devices for ease-of-use and performance reasons. ASMLib 2.0 is available for free download from OTN. This section walks through the process of configuring a simple ASM instance by using ASMLib 2.0 and building a database that uses ASM for disk storage.
Determine Which Version of ASMLib You Need
ASMLib 2.0 is delivered as a set of three Linux packages:
* oracleasmlib-2.0 - the ASM libraries
* oracleasm-support-2.0 - utilities needed to administer ASMLib
* oracleasm - a kernel module for the ASM library
Each Linux distribution has its own set of ASMLib 2.0 packages, and within each distribution, each kernel version has a corresponding oracleasm package. The following paragraphs describe how to determine which set of packages you need.
First, determine which kernel you are using by logging in as root and running the following command:
uname -rm
Ex:
# uname -rm
2.6.9-22.ELsmp i686
The example shows that this is a 2.6.9-22 kernel for an SMP (multiprocessor) box using Intel i686 CPUs.
Use this information to find the correct ASMLib packages on OTN:
1. Point your Web browser to http://www.oracle.com/technology/tech/linux/asmlib/index.html
2. Select the link for your version of Linux.
3. Download the oracleasmlib and oracleasm-support packages for your version of Linux
4. Download the oracleasm package corresponding to your kernel. In the example above, the oracleasm-2.6.9-22.ELsmp-2.0.0-1.i686.rpm package was used.
Next, install the packages by executing the following command as root:
rpm -Uvh oracleasm-kernel_version-asmlib_version.cpu_type.rpm \
oracleasmlib-asmlib_version.cpu_type.rpm \
oracleasm-support-asmlib_version.cpu_type.rpm
Ex:
# rpm -Uvh \
> oracleasm-2.6.9-22.ELsmp-2.0.0-1.i686.rpm \
> oracleasmlib-2.0.1-1.i386.rpm \
> oracleasm-support-2.0.1-1.i386.rpm
Preparing... ########################################### [100%]
1:oracleasm-support ########################################### [ 33%]
2:oracleasm-2.6.9-22.ELsm########################################### [ 67%]
3:oracleasmlib ########################################### [100%]
Configuring ASMLib
Before using ASMLib, you must run a configuration script to prepare the driver. Run the following command as root, and answer the prompts as shown in the example below.
# /etc/init.d/oracleasm configure
Configuring the Oracle ASM library driver.
This will configure the on-boot properties of the Oracle ASM library
driver. The following questions will determine whether the driver is
loaded on boot and what permissions it will have. The current values
will be shown in brackets ('[]'). Hitting <ENTER> without typing an
answer will keep that current value. Ctrl-C will abort.
Default user to own the driver interface []: oracle
Default group to own the driver interface []: dba
Start Oracle ASM library driver on boot (y/n) [n]: y
Fix permissions of Oracle ASM disks on boot (y/n) [y]: y
Writing Oracle ASM library driver configuration: [ OK ]
Creating /dev/oracleasm mount point: [ OK ]
Loading module "oracleasm": [ OK ]
Mounting ASMlib driver filesystem: [ OK ]
Scanning system for ASM disks: [ OK ]
Next you tell the ASM driver which disks you want it to use. Oracle recommends that each disk contain a single partition for the entire disk. See Partitioning the Disks at the beginning of this section for an example of creating disk partitions.
You mark disks for use by ASMLib by running the following command as root:
/etc/init.d/oracleasm createdisk DISK_NAME device_name
Tip: Enter the DISK_NAME in UPPERCASE letters.
Ex:
# /etc/init.d/oracleasm createdisk VOL1 /dev/sdb1
Marking disk "/dev/sdb1" as an ASM disk: [ OK ]
# /etc/init.d/oracleasm createdisk VOL1 /dev/sdc1
Marking disk "/dev/sdc1" as an ASM disk: [ OK ]
# /etc/init.d/oracleasm createdisk VOL1 /dev/sdd1
Marking disk "/dev/sdd1" as an ASM disk: [ OK ]
Verify that ASMLib has marked the disks:
# /etc/init.d/oracleasm listdisks
VOL1
VOL2
VOL3
Create the ASM Instance
ASM runs as a separate Oracle instance which can be created and configured using the Oracle Universal Installer. Now that ASMLib is installed and the disks are marked for use, you can create an ASM instance.
Log in as oracle and start runInstaller:
$ ./runInstaller
1. Select Installation Method
* Select Advanced Installation
* Click on Next
2. Specify Inventory Directory and Credentials
* Inventory Directory: /u01/app/oracle/oraInventory
* Operating System group name: oinstall
* Click on Next
3. Select Installation Type
* Select Enterprise Edition
* Click on Next
4. Specify Home Details
* Name: OraDB10gASM
* Path: /u01/app/oracle/product/10.2.0/asm
Note:Oracle recommends using a different ORACLE_HOME for ASM than the ORACLE_HOME used for the database for ease of administration.
* Click on Next
5. Product-specific Prerequisite Checks
* If you've been following the steps in this guide, all the checks should pass without difficulty. If one or more checks fail, correct the problem before proceeding.
* Click on Next
6. Select Configuration Option
* Select Configure Automatic Storage Management (ASM)
* Enter the ASM SYS password and confirm
* Click on Next
7. Configure Automatic Storage Management
* Disk Group Name: DATA
* Redundancy
- High mirrors data twice.
- Normal mirrors data once. This is the default.
- External does not mirror data within ASM. This is typically used if an external RAID array is providing redundancy.
* Add Disks
The disks you configured for use with ASMLib are listed as Candidate Disks. Select each disk you wish to include in the disk group.
* Click on Next
8. Summary
* A summary of the products being installed is presented.
* Click on Install.
9. Execute Configuration Scripts
* At the end of the installation, a pop up window will appear indicating scripts that need to be run as root. Login as root and run the indicated scripts.
* Click on OK when finished.
10. Configuration Assistants
* The Oracle Net, Oracle Database, and iSQL*Plus configuration assistants will run automatically
11. End of Installation
* Make note of the URLs presented in the summary, and click on Exit when ready.
12. Congratulations! Your new Oracle ASM Instance is up and ready for use.
Kind regards
Mohamed

How to create multiple instance on same database

Hi ,
I would like to know how to create multiple instance on same database . I know that some people use database configuration assistant to do this but i could not figure out how they did it.
Any how if some one can help me with this and can give me links of this it would be great help for me.
Thank you for reading my problem and helping me !
Amil
please if possible mail me on [email protected]

How to create multiple instance?????Do you mean multiple instances on the same database, or multiple databases on the same machine ?
I m new to this field....
Willin to learn a lot about oracle....Then it wouldn't be bad reading a bit of Database Concepts

How to create a c++ shared library (.so) for linux real time (for myRio) with Eclipse to use in LabView?

I tried already these Tutorials and Advices but I didn't find a solution:
- http://www.ni.com/tutorial/14625/en/
- http://www.ni.com/tutorial/14690/en/
- http://forums.ni.com/t5/LabVIEW/Shared-Library-on-myrio-Linux-Real-time-system/m-p/2842540/
- http://forums.ni.com/t5/LabVIEW/How-to-create-shared-library-for-linux-real-time-target-in/m-p/28218...
- and some more
I want use c++ codes on linux real time. For testing reasons I want to have a function that adds 2 values and gives the result.
I've done these steps:
1. writing a c++ file in Eclipse (see screensot 2)
2. building a shared library (.so) from my c++ project in Eclipse (with Cross GCC)
3. putting this file on myRio (path: /usr/local/lib/)
4. creating a VI that calls this library from Labview with a "Call Library Function Node" (see screenshot3)
5. Setting the properties for the "Call Library Function Node" (see screenshots 4-7)
After I run this VI i get this error message: LabVIEW: (Hex 0x627) The function name for the ... node cannot be found in the library. To correct this error, right-click the Call Library Function Node and select Configure from the shortcut menu. Then choose the correct function name. (see screenshot1)
I've tried a lot things to solve this problem but I couldn't find a solution. Would be very happy if anyone can help me. I guess that I have to edit my c++ code to export my function (symbol). But I have no idea how to make it. I also tried it with a dll file in the same folder but it didn't help.
Perhaps someone can send an example which works on myRIO.
Thanks!
screenshot1
screenshot2
screenshot3
screenshot4
screenshot5
screenshot6
screenshot7

can see it in the screenshot8 there is a function called "_Z8AddierenddPd" instead of "Addieren". I copied this name to Labview (see screenshot9) and it worked.
I'm sure that there is a way to compile the shared folder with gcc without decorations (mangling). But I don't know how. If someone has a recommendation I would be very glad!
Prepend each function declaration that you want to be available without name decoration with
extern "C" <your function declaration>
Or if you have multiple functions you want to export you can in the header file where you declare your functions simply use:
#ifdef __cplusplus
extern "C" {
#endif
<all your function declarations>
#ifdef __cplusplus
#endif
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

How to create instance in linux

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