### Build and Install libfluid_base

Source: https://github.com/opennetworkingfoundation/libfluid_base/blob/master/doc/Intro.md

These commands compile and install the libfluid_base library. The `configure` script prepares the build system, `make` compiles the source, and `sudo make install` installs the compiled binaries and headers system-wide. TLS support can be optionally disabled during configuration.

```sh
./configure
make
sudo make install
```

--------------------------------

### Install libfluid_base Dependencies on Ubuntu

Source: https://github.com/opennetworkingfoundation/libfluid_base/blob/master/doc/Intro.md

This snippet provides commands to install the necessary build tools and library dependencies (libevent, OpenSSL) for libfluid_base on Ubuntu 12.04. These packages are required before compiling the library.

```sh
sudo apt-get install autoconf libtool build-essential pkg-config
sudo apt-get install libevent-dev libssl-dev
```

--------------------------------

### Install libfluid_base Dependencies on Fedora

Source: https://github.com/opennetworkingfoundation/libfluid_base/blob/master/doc/Intro.md

This snippet provides commands to install the necessary build tools and library dependencies (libevent, OpenSSL) for libfluid_base on Fedora 19. These packages are required before compiling the library.

```sh
sudo yum install autoconf automake gcc-g++ libtool
sudo yum install libevent-devel openssl-devel
```

--------------------------------

### Configure libfluid_base Library Path

Source: https://github.com/opennetworkingfoundation/libfluid_base/blob/master/doc/Intro.md

This snippet adds `/usr/local/lib` to the system's dynamic linker search path, ensuring that applications can find the installed libfluid_base libraries. `ldconfig` updates the linker cache. This step can be skipped if the library is installed directly to `/usr/lib`.

```sh
sudo sh -c "echo /usr/local/lib > /etc/ld.so.conf.d/libfluid.conf"
sudo ldconfig
```

--------------------------------

### libfluid_base OFServer Class and Callback API

Source: https://github.com/opennetworkingfoundation/libfluid_base/blob/master/doc/Intro.md

Documentation for the `fluid_base::OFServer` class, which forms the core of a libfluid_base controller, and its essential callback methods. It details how to configure the server with port, worker count, and optional TLS, and how to handle connection events and messages.

```APIDOC
fluid_base::OFServer:
  __init__(port: int, workers: int, tls_enabled: bool = False, settings: fluid_base::OFServerSettings = None)
    - Description: Initializes the OFServer instance.
    - Parameters:
      - port (int): The port number for the server to listen on.
      - workers (int): The number of worker threads to use for handling connections.
      - tls_enabled (bool, optional): Enable or disable TLS support. Defaults to False.
      - settings (fluid_base::OFServerSettings, optional): Configuration parameters for OpenFlow features.
    - Behavior:
      - Each worker runs in its own thread and handles a certain number of connections in a round-robin fashion.
      - Connections are typically presented as fluid_base::OFConnection objects in callbacks.

  Callbacks to implement:
    - message_callback(connection: fluid_base::OFConnection, message: OpenFlowMessage):
      - Description: Called when a new OpenFlow message arrives from a connected switch.
      - Parameters:
        - connection (fluid_base::OFConnection): The connection object from which the message was received.
        - message (OpenFlowMessage): The received OpenFlow message.
      - Constraints: Must be thread-safe and return as quickly as possible to avoid starving other connections.
      - Recommendation: Process events asynchronously (e.g., by queuing them).

    - connection_callback(connection: fluid_base::OFConnection, event_type: ConnectionEventType):
      - Description: Called when a connection event occurs (e.g., establishment, disconnection).
      - Parameters:
        - connection (fluid_base::OFConnection): The connection object involved in the event.
        - event_type (ConnectionEventType): The type of connection event (e.g., CONNECTED, DISCONNECTED).
      - Constraints: Must be thread-safe and return as quickly as possible.
      - Recommendation: Process events asynchronously.
```

--------------------------------

### Include libfluid_base OFServer Header in C++

Source: https://github.com/opennetworkingfoundation/libfluid_base/blob/master/doc/Intro.md

This C++ include statement is required to use the `fluid_base::OFServer` class, which is the base class for building OpenFlow controllers with libfluid_base. It provides access to the core server functionalities.

```cc
#include <fluid/OFServer.hh>
```

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