NAME

       knet_handle_enable_sock_notify - Register a callback to receive socket events.

SYNOPSIS

       #include <libknet.h>

       int knet_handle_enable_sock_notify(
           knet_handle_t  knet_h,
           void          *sock_notify_fn_private_data,
           void(*)(void *private_data, int datafd, int8_t channel, uint8_t tx_rx, int error, int errorno)  sock_notify_fn
       );

DESCRIPTION

       knet_handle_enable_sock_notify

       knet_h - pointer to knet_handle_t

       sock_notify_fn_private_data  void  pointer  to  data  that  can  be  used  to identify the
       callback.

       sock_notify_fn A callback function that is invoked every time a socket in the datafd  pool
       will  report  an error (-1) or an end of read (0) (see socket.7). This function MUST NEVER
       block or add substantial delays. The callback is invoked in an internal unlocked  area  to
       allow  calls  to  knet_handle_add_datafd/knet_handle_remove_datafd to swap/replace the bad
       fd. if both err and errno are 0, it means that the socket has received  a  0  byte  packet
       (EOF?).   The  callback  function  must  either  remove  the  fd  from  knet  (by  calling
       knet_handle_remove_fd()) or dup a new fd in its  place.  Failure  to  do  this  can  cause
       problems.

RETURN VALUE

       knet_handle_enable_sock_notify returns 0 on success -1 on error and errno is set.

SEE ALSO

       knet_handle_remove_datafd(3), knet_handle_get_stats(3), knet_host_add(3),
       knet_handle_pmtud_setfreq(3), knet_handle_pmtud_get(3), knet_handle_crypto_use_config(3),
       knet_host_get_id_by_host_name(3), knet_host_get_status(3), knet_link_add_acl(3),
       knet_link_get_pong_count(3), knet_link_get_priority(3), knet_handle_free(3),
       knet_handle_get_datafd(3), knet_recv(3), knet_link_get_ping_timers(3),
       knet_log_get_subsystem_id(3), knet_host_remove(3),
       knet_host_enable_status_change_notify(3), knet_strtoaddr(3), knet_link_rm_acl(3),
       knet_send(3), knet_handle_enable_pmtud_notify(3),
       knet_handle_get_transport_reconnect_interval(3), knet_link_get_enable(3),
       knet_link_set_priority(3), knet_log_set_loglevel(3), knet_handle_get_channel(3),
       knet_link_get_config(3), knet_link_get_link_list(3), knet_get_transport_list(3),
       knet_get_transport_id_by_name(3), knet_log_get_loglevel_id(3), knet_handle_new_ex(3),
       knet_host_set_name(3), knet_addrtostr(3), knet_handle_setfwd(3),
       knet_get_compress_list(3), knet_host_set_policy(3), knet_get_transport_name_by_id(3),
       knet_handle_enable_filter(3), knet_handle_crypto_rx_clear_traffic(3),
       knet_handle_compress(3), knet_link_get_status(3), knet_handle_add_datafd(3),
       knet_send_sync(3), knet_log_get_loglevel_name(3), knet_handle_enable_access_lists(3),
       knet_host_get_host_list(3), knet_host_get_policy(3), knet_link_set_enable(3),
       knet_link_set_pong_count(3), knet_log_get_subsystem_name(3),
       knet_host_get_name_by_host_id(3), knet_link_clear_config(3), knet_log_get_loglevel(3),
       knet_handle_new(3), knet_handle_pmtud_getfreq(3), knet_handle_pmtud_set(3),
       knet_handle_clear_stats(3), knet_link_set_config(3), knet_handle_crypto_set_config(3),
       knet_handle_crypto(3), knet_get_crypto_list(3),
       knet_handle_set_transport_reconnect_interval(3), knet_link_clear_acl(3),
       knet_link_set_ping_timers(3), knet_link_insert_acl(3)

COPYRIGHT

       Copyright (C) 2010-2023 Red Hat, Inc. All rights reserved.