Packages

excansock

1.0.0
1.0.3 1.0.2 1.0.1 1.0.0

Excansock allows you to communicate using CAN bus through SocketCAN API. As SocketCAN is Linux specific, this project is useful only on Linux operating system.

HexDocs

Current section

Files

Jump to
Readme
4 Versions
1 Dependency
Dependants
Files
Activity
excansock c_src excansock.h
Raw

c_src/excansock.h 

#ifndef EXCANSOCK_H

#define EXCANSOCK_H



#include <erl_nif.h>



typedef struct {

  int socket;

  int canfd;



  ErlNifMutex* write_mtx;

  ErlNifMutex* read_mtx;

  

} ResourceData;



typedef struct {

  ERL_NIF_TERM atom_ok;

  ERL_NIF_TERM atom_undefined;

  ERL_NIF_TERM atom_error;

  ERL_NIF_TERM atom_nil;

  ERL_NIF_TERM atom_eagain;

  ERL_NIF_TERM atom_can_frame;

  ERL_NIF_TERM atom_enofd;

} PrivData;



static ErlNifResourceType *excansock_rt;



static ERL_NIF_TERM excansock_open_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);

static ERL_NIF_TERM excansock_close_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);

static ERL_NIF_TERM excansock_recv_own_messages_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);

static ERL_NIF_TERM excansock_set_loopback_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);

static ERL_NIF_TERM excansock_set_filters_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);

static ERL_NIF_TERM excansock_set_error_filter_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);

static ERL_NIF_TERM send_try_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);

static ERL_NIF_TERM recv_try_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]);





static void excansock_rt_dtor(ErlNifEnv *env, ResourceData *obj);



static int load(ErlNifEnv* env, void** priv, ERL_NIF_TERM info);

static int reload(ErlNifEnv* env, void** priv, ERL_NIF_TERM info);

static int upgrade(ErlNifEnv* env, void** priv, void** old_priv, ERL_NIF_TERM info);

static void unload(ErlNifEnv* env, void* priv);



static ErlNifFunc nif_funcs[] = {

  {"excansock_open", 2, excansock_open_nif, 0},

  {"excansock_close", 1, excansock_close_nif, 0},

  {"excansock_recv_own_messages", 2, excansock_recv_own_messages_nif, 0},

  {"excansock_set_loopback", 2, excansock_set_loopback_nif, 0},

  {"excansock_set_filters", 2, excansock_set_filters_nif, 0},

  {"excansock_set_error_filter", 2, excansock_set_error_filter_nif, 0},

  {"excansock_send_try", 3, send_try_nif, 0},

  {"excansock_recv_try", 1, recv_try_nif, 0},

};



ERL_NIF_INIT(Elixir.Excansock.Nif, nif_funcs, &load, &reload, &upgrade, &unload)



#endif // EXCANSOCK_H