Philips Bluetooth QuickStart Kit - Manual (Page 38)

Bluetooth QuickStart Kit Version 1.0 - User’s Guide Page 38
Copyright 2004-2005 © Embedded Artists AB
B.2 TCP/IP API
B.2.1 m_buf_get_data
The macro
m_buf_get_data
is defined as:
#define m_buf_get_data( pBuf ) func( pBuf )
Where
func
is a function with the following prototype:
void* func( tBuf* pBuf )
This is a macro that retrieves a pointer to the data within the buffer. What actually
happens is that the pData pointer in the buffer structure is returned.
Parameters:
[in] pBuf - buffer that contains received data.
Returns:
A pointer to the actual data that resides within the buffer.
B.2.2 tcpNewTcb
tTcpTcb* tcpNewTcb( void )
This function allocates a new control block. Returns NULL if there are no more control
blocks available.
Returns:
An allocated TCB or NULL if none available.
B.2.3 tcpBind
tS8 tcpBind( tTcpTcb* pTcb, tIPAddr* pIPAddr, tU16 port )
Bind a TCB to a port. E.g. port 80 if the application is a web server.
Parameters:
[in] pTcb - an allocated TCB that will be bound to a specific port.
[in] pIPAddr – the IP address to bind to. This parameter may be set to NULL if the
TCB should be bound to all interfaces.
[in] port - the port number to use or 0 (zero) if the stack should choose a port
number.
Returns:
One of the error codes specified below.
Possible error situations (what can be identified in an error code):
TCP_OK - no errors
TCP_NULL_POINTER - parameter pTcb was NULL.
TCP_PORT_IN_USE - port number is already assigned to a connection.