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netbuf_ref() function
Let a netbuf reference existing (non-volatile) data.
Syntax
Implemented in ![]()
netbuf.c:150
Return value
ERR_OK if data is referenced ERR_MEM if data couldn't be referenced due to lack of memory
Related Functions
Found 12 other functions taking a ![]()
netbuf
argument:
Function
Description
Deallocate a netbuf allocated by netbuf_new().
Receive data (in form of a netbuf containing a packet buffer) from a netconn
Get the data pointer and length of the data inside a netbuf.
Send data over a UDP or RAW netconn (that is already connected).
Move the current data pointer of a packet buffer contained in a netbuf to the next part. The packet buffer itself is not modified.
Free the packet buffer included in a netbuf
Receive data (in form of a netbuf) from a UDP or RAW netconn
Chain one netbuf to another (@see pbuf_chain)
Move the current data pointer of a packet buffer contained in a netbuf to the beginning of the packet. The packet buffer itself is not modified.
Allocate memory for a packet buffer for a given netbuf.
Send data (in form of a netbuf) to a specific remote IP address and port. Only to be used for UDP and RAW netconns (not TCP).
Receive data (in form of a netbuf) from a UDP or RAW netconn