TCP implementation (license: GPLv2).
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Functions |
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void | tcp_init () |
| | Initializes the TCP layer.
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| bool | tcp_handle_packet (const uint8_t *ip, const struct tcp_header *packet, uint16_t packet_len) |
| | Forwards incoming packets to the appropriate TCP socket.
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| int | tcp_socket_alloc (tcp_callback callback) |
| | Allocates a TCP socket.
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| bool | tcp_socket_free (int socket) |
| | Deallocates a TCP socket.
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| bool | tcp_connect (int socket, const uint8_t *ip, uint16_t port) |
| | Actively opens a connection to the given remote host and port.
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| bool | tcp_disconnect (int socket) |
| | Actively closes a connection.
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| bool | tcp_listen (int socket, uint16_t port) |
| | Starts listening on a local port for incoming connections.
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| bool | tcp_accept (int socket, tcp_callback callback) |
| | Accepts an incoming connection.
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| int16_t | tcp_write (int socket, const uint8_t *data, uint16_t data_len) |
| | Writes data for transmission to the socket.
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| int16_t | tcp_write_string_P (int socket, PGM_P str) |
| | Writes a string from flash memory space to the socket.
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| int16_t | tcp_read (int socket, uint8_t *buffer, uint16_t buffer_len) |
| | Reads data which was received over a socket.
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| int16_t | tcp_peek (int socket, uint8_t *buffer, uint16_t offset, uint16_t buffer_len) |
| | Reads data which was received over a socket, without actually removing it from the input buffer.
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| int16_t | tcp_skip (int socket, uint16_t len) |
| | Removes data from the receive buffer of a socket without reading it.
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| int16_t | tcp_reserve (int socket, uint16_t len) |
| | Declares unused transmit buffer space of a socket as valid.
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| uint8_t * | tcp_buffer_rx (int socket) |
| | Retrieves a pointer to the occupied part of the receive buffer space of a socket.
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| uint8_t * | tcp_buffer_tx (int socket) |
| | Retrieves a pointer to the empty part of the transmit buffer space of a socket.
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| int16_t | tcp_buffer_used_rx (int socket) |
| | Retrieves the number of available data bytes waiting to be read from the socket.
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| int16_t | tcp_buffer_space_rx (int socket) |
| | Retrieves the number of data bytes which currently can be received until the receive buffer of the socket is full.
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| int16_t | tcp_buffer_used_tx (int socket) |
| | Retrieves the number of data bytes which have been written to the socket but which have not been sent to the remote host or which have not been acknowledged yet.
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| int16_t | tcp_buffer_space_tx (int socket) |
| | Retrieves the number of data bytes which currently can be written to the socket.
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