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netconn Struct Reference
A netconn descriptor.
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#include <api.h >
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.
Detailed Description
A netconn descriptor.
Definition at line 205 of file api.h .
Field Documentation
mbox where new connections are stored until processed by the application thread
Definition at line 229 of file api.h .
A callback function that is informed about events for this netconn.
Definition at line 270 of file api.h .
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 267 of file api.h .
flags holding more netconn-internal state, see NETCONN_FLAG_* defines
Definition at line 259 of file api.h .
the last error this netconn had
Definition at line 218 of file api.h .
values <0 mean linger is disabled, values > 0 are seconds to linger
Definition at line 256 of file api.h .
sem that is used to synchronously execute functions in the core context
Definition at line 221 of file api.h .
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 252 of file api.h .
maximum amount of bytes queued in recvmbox not used for TCP: adjust TCP_WND instead!
Definition at line 248 of file api.h .
timeout in milliseconds to wait for new data to be received (or connections to arrive for listening netconns)
Definition at line 243 of file api.h .
mbox where received packets are stored until they are fetched by the netconn application thread (can grow quite big)
Definition at line 225 of file api.h .
timeout to wait for sending data (which means enqueueing data for sending in internal buffers) in milliseconds
Definition at line 238 of file api.h .
only used for socket layer
Definition at line 233 of file api.h .
current state of the netconn
Definition at line 209 of file api.h .
type of the netconn (TCP, UDP or RAW)
Definition at line 207 of file api.h .
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 263 of file api.h .
1.7.2