Data Fields
vtm_socket_dgram_srv_cbs Struct Reference

Data Fields

void(* server_ready )(vtm_socket_dgram_srv *srv, struct vtm_socket_dgram_srv_opts *opts)
 
void(* worker_init )(vtm_socket_dgram_srv *srv, vtm_dataset *wd)
 
void(* worker_end )(vtm_socket_dgram_srv *srv, vtm_dataset *wd)
 
void(* dgram_recv )(vtm_socket_dgram_srv *srv, vtm_dataset *wd, struct vtm_socket_dgram *dgram)
 

Detailed Description

Holds the user defined callbacks for a datagram server.

When a specific callback is not needed, then is MUST be set to NULL.

Unless otherwise stated each callback function is called from a worker-thread. When the server runs in single-threaded mode, the functions are called from the main thread that started the server.

Field Documentation

void(* vtm_socket_dgram_srv_cbs::server_ready)(vtm_socket_dgram_srv *srv, struct vtm_socket_dgram_srv_opts *opts)

This function is called when the socket of the server was successfully created and is ready to receive incoming datagram packets.

The function is called in the same thread that called vtm_socket_dgram_srv_run().

Parameters
srvthe server which is ready
optsthe options with which the server was started
void(* vtm_socket_dgram_srv_cbs::worker_init)(vtm_socket_dgram_srv *srv, vtm_dataset *wd)

This function is is called during startup phase of the server for each worker thread.

Parameters
srvthe server
wdan empty dataset set. The same dataset is later delivered to this thread in the other callbacks. You can store things here that may be used during processing of client messages, for example a database connection.
void(* vtm_socket_dgram_srv_cbs::worker_end)(vtm_socket_dgram_srv *srv, vtm_dataset *wd)

This function is called during shutdown phase of the server for each worker thread.

Parameters
srvthe server
wdthe working dataset
void(* vtm_socket_dgram_srv_cbs::dgram_recv)(vtm_socket_dgram_srv *srv, vtm_dataset *wd, struct vtm_socket_dgram *dgram)

A new datagram was received.

Parameters
srvthe server
wdthe working dataset
dgramthe received datagram