This tab allows you to specify Open Server event handlers when you have configured EAServer to support Open Server client connections. This feature allows you to run legacy Sybase Open Server applications in EAServer. For more information, see Appendix B, “Migrating Open Server Applications to EAServer,” in the EAServer Programmer’s Guide. These handlers are called only for events that are generated by clients that connect to a listener that is configured to accept Open Server requests.
Specifying an event handler
Select the Handlers tab.
Enter the DLL or shared library name and the function name of the specific event handler being called, separated by a colon.
The following example illustrates an entry for a connect event handler:
Platform |
Entry |
|---|---|
Solaris, AIX, Digital UNIX, and LINUX |
libsamp.so:debug_connect |
HP-UX |
libsamp.sl:debug_connect |
Windows |
libsamp.dll:debug_connect |
where libsamp is the DLL or shared library name and debug_connect is the function called whenever a connect event handler is called.
Table 3-6 summarizes the types of event handlers that you can install. For information on coding event handlers, see Appendix B, “Migrating Open Server Applications to EAServer,” in the EAServer Programmer’s Guide.
Event handler |
Called |
|---|---|
Connect |
Each time a client connects to EAServer. |
Disconnect |
When the client disconnects from EAServer. |
Error |
When a server processing error occurs. |
CS Error |
When a CS-Library error occurs |
CT Error |
When a Client-Library error occurs |
Open Server Error |
When a Open Server error occurs. |
Initialization |
Before starting a server. |
Start |
When a request to start the server is made. |
Stop |
When a request to stop the server is made. |
Language |
When a client sends a language request, such as a SQL statement. |
RPC |
When a client issues a remote procedure call. |
Attention |
When an attention has been received. An attention is an immediate event; EAServer services the attention as soon as it occurs, rather than adding it to the client’s event queue. |
Cursor |
When a client sends a cursor request. |
Dynamic |
When a client sends a dynamic SQL request. |
Message |
When the client sends a message. |
Option |
When a client sends an option command. |
Bulk |
When a client issues a bulk copy request. |
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