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lwIP
2.1.1
Lightweight IP stack
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#include <sockets_priv.h>
Data Fields | |
| struct lwip_select_cb * | next |
| struct lwip_select_cb * | prev |
| fd_set * | readset |
| fd_set * | writeset |
| fd_set * | exceptset |
| struct pollfd * | poll_fds |
| nfds_t | poll_nfds |
| int | sem_signalled |
| sys_sem_t | sem |
Description for a task waiting in select
| fd_set* lwip_select_cb::exceptset |
unimplemented: exceptset passed to select
| struct lwip_select_cb* lwip_select_cb::next |
Pointer to the next waiting task
| struct pollfd* lwip_select_cb::poll_fds |
fds passed to poll; NULL if select
| nfds_t lwip_select_cb::poll_nfds |
nfds passed to poll; 0 if select
| struct lwip_select_cb* lwip_select_cb::prev |
Pointer to the previous waiting task
| fd_set* lwip_select_cb::readset |
readset passed to select
| sys_sem_t lwip_select_cb::sem |
semaphore to wake up a task waiting for select
| int lwip_select_cb::sem_signalled |
don't signal the same semaphore twice: set to 1 when signalled
| fd_set* lwip_select_cb::writeset |
writeset passed to select