C/C++ Overview

The Sybase CEP SDK in C/C++ programming language includes the following:

• Libraries of functions that you can call.

• Header (.h) files that your source code can #include.

• Source code for some of the adapters that Sybase CEP supplies.

• Sample source code for other purposes, including:

  • An out-of-process input adapter (example_input_adapter.c) and output adapter (example_output_adapter.c).

  • Registering a query (example_register_query.c).

  • A user-defined function (weightedAverage3).

  • A user-defined aggregate function (runningAverage).

You will need to supply a C/C++ compiler.

If you have a .dll file that was generated with a previous version of Microsoft Visual Studio, that .dll file will not work reliably with version 5.1 and later of Sybase CEP Server. You should re-compile the code. This applies to all .dll files that are intended to be linked in with Sybase CEP Server, including:

• In-process adapters.

• UDFs. Note that, throughout this chapter, when we refer to UDFs, we are referring to UDFs written in C/C++, not CCL UDFs, unless explicitly stated otherwise.

• RPC plugins.

• User-defined plugins.

• Compiling for 64-bit Microsoft Windows
  This section describes how to compile for 64-bit Microsoft Windows, with specific instructions for working with Microsoft Visual Studio.
• In-process vs. Out-of-process Activities
  An overview of in-process and out-of-process activities that are not specific to adapters.