TCPSOCKET Struct Reference
[TCP Sockets]
TCP socket information structure.
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Data Fields |
TCPSOCKET * | so_next |
| Link to next tcp socket structure.
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void * | so_device |
| Always zero.
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uint8_t | so_devtype |
| Device type, always IFTYP_TCPSOCK.
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int(* | so_devread )(TCPSOCKET *, void *, int) |
| Read from device.
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int(* | so_devwrite )(TCPSOCKET *, CONST void *, int) |
| Write to device.
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int(* | so_devwrite_P )(TCPSOCKET *, PGM_P, int) |
| Write to device.
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int(* | so_devioctl )(TCPSOCKET *, int, void *) |
| Driver control function.
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uint16_t | so_devocnt |
| Number of data bytes in output buffer.
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uint8_t * | so_devobuf |
| Pointer to output buffer.
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uint16_t | so_devobsz |
| Output buffer size.
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volatile uint8_t | so_state |
| Connection state, see tcp_fsm.h.
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uint32_t | so_local_addr |
| Local IP address in net byte order.
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uint16_t | so_local_port |
| Local port number in net byte order.
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uint32_t | so_remote_addr |
| Remote IP address in net byte order.
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uint16_t | so_remote_port |
| Remote port number in net byte order.
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uint8_t | so_tx_flags |
| Flags used during transmissions - see below.
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uint32_t | so_tx_isn |
| Initial sequence number.
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uint32_t | so_tx_una |
| Unacknowledged sequence number.
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uint32_t | so_tx_nxt |
| Next sequence number to send.
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uint32_t | so_tx_wl1 |
| Sequence number of last window update.
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uint32_t | so_tx_wl2 |
| Acknowledged sequence of last window update.
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uint16_t | so_tx_win |
| Peer's receive window.
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uint8_t | so_tx_dup |
| Duplicate ACK counter.
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NETBUF * | so_tx_nbq |
| Network buffers waiting to be acknowledged.
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HANDLE | so_tx_tq |
| Threads waiting for transmit buffer space.
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uint32_t | so_rx_isn |
| Initial sequence number of remote.
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uint32_t | so_rx_nxt |
| Next sequence number to receive.
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uint16_t | so_rx_win |
| Local receive window.
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int | so_rx_cnt |
| Number of data bytes in the receive buffer.
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int | so_rx_bsz |
| Receive buffer size.
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int | so_rd_cnt |
| Number of bytes read from buffer top.
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NETBUF * | so_rx_buf |
| Data waiting to be read by application.
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HANDLE | so_rx_tq |
| Threads waiting for received data.
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NETBUF * | so_rx_nbq |
| Network buffers received in advance.
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uint16_t | so_mss |
| MSS, limited by remote option or MTU.
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uint32_t | so_rtt_seq |
| Sequence number for RTT calculation.
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uint16_t | so_rtto |
| Current retransmission timeout.
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uint16_t | so_retransmits |
| Number of retransmits.
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uint16_t | so_time_wait |
| Time wait counter.
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uint16_t | so_retran_time |
| Retransmit time counter.
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uint16_t | so_last_error |
| Last error code.
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HANDLE | so_pc_tq |
| Listening thread.
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HANDLE | so_ac_tq |
| Connecting thread.
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uint32_t | so_read_to |
| Read timeout.
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uint32_t | so_write_to |
| Write timeout.
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uint32_t | so_oos_drop |
| Out of sequence dropped.
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Detailed Description
TCP socket information structure.
TCP socket type.
Applications should not rely on the content of this structure. It may change without notice.
Definition at line 209 of file sock_var.h.
Field Documentation
TCPSOCKET* TCPSOCKET::so_next |
Link to next tcp socket structure.
Definition at line 210 of file sock_var.h.
void* TCPSOCKET::so_device |
Device type, always IFTYP_TCPSOCK.
Definition at line 212 of file sock_var.h.
int(* TCPSOCKET::so_devread)(TCPSOCKET *, void *, int) |
int(* TCPSOCKET::so_devwrite)(TCPSOCKET *, CONST void *, int) |
int(* TCPSOCKET::so_devwrite_P)(TCPSOCKET *, PGM_P, int) |
int(* TCPSOCKET::so_devioctl)(TCPSOCKET *, int, void *) |
Number of data bytes in output buffer.
Definition at line 220 of file sock_var.h.
Pointer to output buffer.
Definition at line 221 of file sock_var.h.
volatile uint8_t TCPSOCKET::so_state |
Local IP address in net byte order.
Definition at line 225 of file sock_var.h.
Local port number in net byte order.
Definition at line 226 of file sock_var.h.
Remote IP address in net byte order.
Definition at line 227 of file sock_var.h.
Remote port number in net byte order.
Definition at line 228 of file sock_var.h.
Flags used during transmissions - see below.
Definition at line 230 of file sock_var.h.
Initial sequence number.
Definition at line 231 of file sock_var.h.
Unacknowledged sequence number.
Definition at line 232 of file sock_var.h.
Next sequence number to send.
Definition at line 233 of file sock_var.h.
Sequence number of last window update.
Definition at line 234 of file sock_var.h.
Acknowledged sequence of last window update.
Definition at line 235 of file sock_var.h.
Peer's receive window.
Definition at line 236 of file sock_var.h.
Duplicate ACK counter.
Definition at line 237 of file sock_var.h.
NETBUF* TCPSOCKET::so_tx_nbq |
Network buffers waiting to be acknowledged.
Definition at line 238 of file sock_var.h.
Threads waiting for transmit buffer space.
Definition at line 239 of file sock_var.h.
Initial sequence number of remote.
Definition at line 241 of file sock_var.h.
Next sequence number to receive.
Definition at line 242 of file sock_var.h.
Number of data bytes in the receive buffer.
Definition at line 244 of file sock_var.h.
Number of bytes read from buffer top.
Definition at line 246 of file sock_var.h.
NETBUF* TCPSOCKET::so_rx_buf |
Data waiting to be read by application.
Definition at line 247 of file sock_var.h.
Threads waiting for received data.
Definition at line 248 of file sock_var.h.
NETBUF* TCPSOCKET::so_rx_nbq |
Network buffers received in advance.
Definition at line 249 of file sock_var.h.
MSS, limited by remote option or MTU.
Definition at line 251 of file sock_var.h.
Sequence number for RTT calculation.
Definition at line 253 of file sock_var.h.
Current retransmission timeout.
Definition at line 254 of file sock_var.h.
Number of retransmits.
Definition at line 255 of file sock_var.h.
Retransmit time counter.
Definition at line 257 of file sock_var.h.
Out of sequence dropped.
Definition at line 264 of file sock_var.h.
The documentation for this struct was generated from the following file: