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netconn Struct Reference
A netconn descriptor. More...
#include <api.h>
Data Fields | |
| enum netconn_type | type |
| type of the netconn (TCP, UDP or RAW) | |
| enum netconn_state | state |
| current state of the netconn | |
| err_t | last_err |
| the last error this netconn had | |
| sys_sem_t | op_completed |
| sem that is used to synchronously execute functions in the core context | |
| sys_mbox_t | recvmbox |
| mbox where received packets are stored until they are fetched by the netconn application thread (can grow quite big) | |
| sys_mbox_t | acceptmbox |
| mbox where new connections are stored until processed by the application thread | |
| int | socket |
| only used for socket layer | |
| s32_t | send_timeout |
| timeout to wait for sending data (which means enqueueing data for sending in internal buffers) in milliseconds | |
| int | recv_timeout |
| timeout in milliseconds to wait for new data to be received (or connections to arrive for listening netconns) | |
| int | recv_bufsize |
| maximum amount of bytes queued in recvmbox not used for TCP: adjust TCP_WND instead! | |
| int | recv_avail |
| number of bytes currently in recvmbox to be received, tested against recv_bufsize to limit bytes on recvmbox for UDP and RAW, used for FIONREAD | |
| s16_t | linger |
| values <0 mean linger is disabled, values > 0 are seconds to linger | |
| u8_t | flags |
| flags holding more netconn-internal state, see NETCONN_FLAG_* defines | |
| size_t | write_offset |
| TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores how much is already sent. | |
| struct api_msg * | current_msg |
| TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores the message. | |
| netconn_callback | callback |
| A callback function that is informed about events for this netconn. | |
| s16_t | recv_avail |
| number of bytes currently in recvmbox to be received, tested against recv_bufsize to limit bytes on recvmbox for UDP and RAW, used for FIONREAD | |
| struct api_msg_msg * | current_msg |
| TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores the message. | |
Detailed Description
A netconn descriptor.
Definition at line 180 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
Field Documentation
| sys_mbox_t acceptmbox |
mbox where new connections are stored until processed by the application thread
Definition at line 204 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
A callback function that is informed about events for this netconn.
Definition at line 245 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| struct api_msg* current_msg |
TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores the message.
Also used during connect and close.
Definition at line 242 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| struct api_msg_msg* current_msg |
TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores the message.
Also used during connect and close.
Definition at line 185 of file unsupported/net/lwip/lwip/include/lwip/api.h.
| u8_t flags |
flags holding more netconn-internal state, see NETCONN_FLAG_* defines
Definition at line 234 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
the last error this netconn had
Definition at line 193 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| s16_t linger |
values <0 mean linger is disabled, values > 0 are seconds to linger
Definition at line 231 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| sys_sem_t op_completed |
sem that is used to synchronously execute functions in the core context
sem that is used to synchroneously execute functions in the core context
Definition at line 196 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| int recv_avail |
number of bytes currently in recvmbox to be received, tested against recv_bufsize to limit bytes on recvmbox for UDP and RAW, used for FIONREAD
Definition at line 227 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| s16_t recv_avail |
number of bytes currently in recvmbox to be received, tested against recv_bufsize to limit bytes on recvmbox for UDP and RAW, used for FIONREAD
Definition at line 174 of file unsupported/net/lwip/lwip/include/lwip/api.h.
| int recv_bufsize |
maximum amount of bytes queued in recvmbox not used for TCP: adjust TCP_WND instead!
Definition at line 223 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| int recv_timeout |
timeout in milliseconds to wait for new data to be received (or connections to arrive for listening netconns)
timeout to wait for new data to be received (or connections to arrive for listening netconns)
Definition at line 218 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| sys_mbox_t recvmbox |
mbox where received packets are stored until they are fetched by the netconn application thread (can grow quite big)
Definition at line 200 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| s32_t send_timeout |
timeout to wait for sending data (which means enqueueing data for sending in internal buffers) in milliseconds
Definition at line 213 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| int socket |
only used for socket layer
Definition at line 208 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| enum netconn_state state |
current state of the netconn
Definition at line 184 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| enum netconn_type type |
type of the netconn (TCP, UDP or RAW)
Definition at line 182 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
| size_t write_offset |
TCP: when data passed to netconn_write doesn't fit into the send buffer, this temporarily stores how much is already sent.
Definition at line 238 of file FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/api.h.
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