rt_recv

Description

The rt_recv function is used to receive data from a connected RTTP socket.

Syntax:

int rt_recv(RTEngine engine, RTSOCKET s, char * buffer, int len, int flag);

Parameters:

engine: The pointer to the RTTP engine instance returned by rt_init().

s: The connected RTTP socket descriptor.

buffer: A pointer to the buffer used to store the received data.

len: The maximum capacity of the buffer (in bytes).

flag: A reserved parameter; currently should be set to 0.

Return Value:

• When data is successfully read, it returns the number of actual bytes read.
• When the connection has been gracefully closed by the remote peer, it returns 0.
• When no data is currently available, it returns -1.
• In case of an error, it returns a negative error code.