WolfSSLIOSendCallback

```
public interface WolfSSLIOSendCallback
```
wolfSSL I/O Send Callback Interface. This interface specifies how applicaitons should implement the I/O send callback class to be used by wolfSSL.
After implementing this interface, it should be passed as a parameter to the WolfSSLContext.setIOSend() method to be registered with the native wolfSSL library.

Version:

1.0, August 2013

Author:

wolfSSL

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`sendCallback(WolfSSLSession ssl, byte[] buf, int sz, java.lang.Object ctx)`	I/O send callback method.

- Method Detail
  - sendCallback
```
int sendCallback(WolfSSLSession ssl,
                 byte[] buf,
                 int sz,
                 java.lang.Object ctx)
```
    I/O send callback method. This method acts as the I/O send callback to be used with wolfSSL. This can be registered with an SSL session using the WolfSSLContext#setIOSend(WolfSSLIOSendCallback) method.
    
    Parameters:
    
    ssl - the current SSL session object from which the callback was initiated.
    
    buf - buffer containing data to be sent to the peer.
    
    sz - size of data in buffer "buf"
    
    ctx - I/O context to be used.
    
    Returns:
    
    the number of bytes sent, or an error. For possible error codes, see the default EmbedSend() function in wolfssl_package/src/io.c