/* Stopping node */
void client_exit(CORBA_Environment *env) {
/* Free env & buffers */
CORBA_free(env->_inbuf);
CORBA_free(env->_outbuf);
CORBA_free(env);
erl_close_connection(env->_fd);
exit(1);
}
int main(int argc, char** argv)
{
int erl_fd; // FD to the ERL VM
char* bufp; // storage for incoming messages
int bufsz = 1024;
// the following are basically magic values.
erl_fd = setup_connection(1, "secretcookie", 0, "e1@am335x-evm");
ErlMessage* emsg;
emsg = (ErlMessage*)malloc(sizeof(ErlMessage));
bufp = (char*)malloc(bufsz * sizeof(char));
while (1) // main loop - we don't ever expect to leave.
{
TRACE(("starting main loop"));
TRACE(("waiting for a message..."));
int msg_status = erl_receive_msg(erl_fd, bufp, bufsz, emsg);
TRACE(("got a message"));
switch (msg_status)
{
case (ERL_MSG):
TRACE(("message status is ERL_MSG"));
process_msg(emsg, erl_fd);
break;
case (ERL_TICK):
TRACE(("message status is ERL_TICK"));
break;
case (ERL_ERROR):
default:
TRACE(("message status is ERL_ERROR"));
process_error();
break;
}
TRACE(("cleaning up at end of main loop"));
erl_free_term(emsg->msg);
erl_free_term(emsg->from);
erl_free_term(emsg->to);
} // end while loop
if (erl_close_connection(erl_fd) < 0)
{
perror("failed to close connection. plowing onward.");
}
free(emsg);
free(bufp);
}
PyObject *py_erlang_close(PyObject * self, PyObject * args) {
int fd;
if (!PyArg_ParseTuple(args, "i:erlang_close", &fd)) {
return NULL;
}
if (fd >= 0) {
erl_close_connection(fd);
}
Py_INCREF(Py_True);
return Py_True;
}
int main(int argc, char **argv)
#endif
{
struct hostent *hp;
MyTimeval start, stop;
int i, fd, ires, tries;
CORBA_Environment *env;
char *this_node_name = NULL;
char *peer_node = NULL;
char *cookie = NULL;
char host[HOSTNAMESZ + 1];
char this_node[NODENAMESZ + 1];
erlang_msg msg;
int status, loop;
#ifdef __WIN32__
WORD wVersionRequested;
WSADATA wsaData;
wVersionRequested = MAKEWORD(2, 0);
if (WSAStartup(wVersionRequested, &wsaData) != 0) {
fprintf(stderr, "Could not load winsock2 v2.0 compatible DLL");
exit(1);
}
#endif
progname = argv[0];
host[HOSTNAMESZ] = '\0';
if (gethostname(host, HOSTNAMESZ) < 0) {
fprintf(stderr, "Can't find own hostname\n");
done(1);
}
if ((hp = gethostbyname(host)) == 0) {
fprintf(stderr, "Can't get ip address for host %s\n", host);
done(1);
}
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-help") == 0) {
usage();
done(0);
} else if (strcmp(argv[i], "-this-node-name") == 0) {
i++;
this_node_name = argv[i];
} else if (strcmp(argv[i], "-peer-node") == 0) {
i++;
peer_node = argv[i];
} else if (strcmp(argv[i], "-cookie") == 0) {
i++;
cookie = argv[i];
} else {
fprintf(stderr, "Error : invalid argument \"%s\"\n", argv[i]);
usage();
done(1);
}
}
if (this_node_name == NULL || peer_node == NULL || cookie == NULL) {
fprintf(stderr, "Error: missing option\n");
usage();
done(1);
}
/* Behead hostname at first dot */
for (i=0; host[i] != '\0'; i++) {
if (host[i] == '.') { host[i] = '\0'; break; }
}
sprintf(this_node, "%s@%s", this_node_name, host);
fprintf(stderr, "c_server: this node: \"%s\"\n", this_node);
fprintf(stderr, "c_server: peer node: \"%s\"\n", peer_node);
/* initialize erl_interface */
erl_init(NULL, 0);
for (tries = 0; tries < MAXTRIES; tries++) {
/* connect to peer node */
ires = erl_connect_xinit(host, this_node_name, this_node,
(struct in_addr *)*hp->h_addr_list,
cookie, 0);
fprintf(stderr, "c_server: erl_connect_xinit(): %d\n", ires);
fd = erl_connect(peer_node);
fprintf(stderr, "c_server: erl_connect(): %d\n", fd);
if (fd >= 0)
break;
fprintf(stderr, "c_server: cannot connect, retrying\n");
}
if (fd < 0) {
fprintf(stderr, "c_server: cannot connect, exiting\n");
done(1);
}
env = CORBA_Environment_alloc(INBUFSZ, OUTBUFSZ);
env->_fd = fd;
status = 1;
loop = 1;
my_gettimeofday(&start);
while (status >= 0 && loop > 0) {
status = ei_receive_encoded(env->_fd, &env->_inbuf, &env->_inbufsz,
&msg, &env->_iin);
switch(status) {
case ERL_SEND:
case ERL_REG_SEND:
/* get result */
m_i__switch(NULL, env);
switch(env->_major) {
case CORBA_NO_EXCEPTION:
break;
case CORBA_SYSTEM_EXCEPTION:
fprintf(stderr, "Request failure, reason : %s\n",
(char *) CORBA_exception_value(env));
CORBA_exception_free(env);
break;
default: /* Should not happen */
CORBA_exception_free(env);
break;
}
/* send back result data */
if (env->_iout > 0)
ei_send_encoded(env->_fd, &env->_caller, env->_outbuf,
env->_iout);
loop = 0;
break;
case ERL_TICK:
break;
default:
if (status < 0) {
fprintf(stderr, "Status negative: %d\n", status);
loop = 0;
}
break;
}
}
my_gettimeofday(&stop);
showtime(&start, &stop);
erl_close_connection(fd);
CORBA_free(env->_inbuf);
CORBA_free(env->_outbuf);
CORBA_free(env);
if (status < 0)
done(-status);
else
done(0);
}
int main(int argc, char **argv)
#endif
{
struct hostent *hp;
erlang_pid pid;
MyTimeval start, stop;
int i, fd, ires, tres;
IC_Env *env;
int tries = 0;
char *this_node_name = NULL;
char *peer_node = NULL;
char *peer_process_name = NULL;
char *cookie = NULL;
char host[HOSTNAMESZ + 1];
TestFunc test_func = NULL;
TestCase *test_case;
char *test_case_name = NULL;
#ifdef __WIN32__
WORD wVersionRequested;
WSADATA wsaData;
wVersionRequested = MAKEWORD(2, 0);
if (WSAStartup(wVersionRequested, &wsaData) != 0) {
fprintf(stderr, "Could not load winsock2 v2.0 compatible DLL");
exit(1);
}
#endif
progname = argv[0];
host[HOSTNAMESZ] = '\0';
if (gethostname(host, HOSTNAMESZ) < 0) {
fprintf(stderr, "Can't find own hostname\n");
done(1);
}
if ((hp = gethostbyname(host)) == 0) {
fprintf(stderr, "Can't get ip address for host %s\n", host);
done(1);
}
for (i = 1; i < argc; i++) {
if (cmp_str(argv[i], "-help")) {
usage();
done(0);
} else if (cmp_str(argv[i], "-this-node-name")) {
i++;
this_node_name = argv[i];
} else if (cmp_str(argv[i], "-peer-node")) {
i++;
peer_node = argv[i];
} else if (cmp_str(argv[i], "-peer-process-name")) {
i++;
peer_process_name = argv[i];
} else if (cmp_str(argv[i], "-cookie")) {
i++;
cookie = argv[i];
} else if (cmp_str(argv[i], "-test-case")) {
i++;
test_case_name = argv[i];
} else {
fprintf(stderr, "Error : invalid argument \"%s\"\n", argv[i]);
usage();
done(1);
}
}
if (this_node_name == NULL || peer_node == NULL || test_case_name == NULL
|| peer_process_name == NULL || cookie == NULL) {
fprintf(stderr, "Error: missing option\n");
usage();
done(1);
}
test_case = test_cases;
while (test_case->func) {
if (cmp_str(test_case->name, test_case_name)) {
test_func = test_case->func;
break;
}
test_case++;
}
if (test_func == NULL) {
fprintf(stderr, "Error: illegal test case: \"%s\"\n", test_case_name);
done(1);
}
/* Behead hostname at first dot */
for (i=0; host[i] != '\0'; i++) {
if (host[i] == '.') { host[i] = '\0'; break; }
}
sprintf(this_node, "%s@%s", this_node_name, host);
fprintf(stderr, "c_client: this node: \"%s\"\n", this_node);
fprintf(stderr, "c_client: peer node: \"%s\"\n", peer_node);
fprintf(stderr, "c_client: test case: \"%s\"\n", test_case_name);
fprintf(stderr, "c_client: starting\n");
/* initialize erl_interface */
erl_init(NULL, 0);
for (tries = 0; tries < MAXTRIES; tries++) {
/* connect to erlang node */
ires = erl_connect_xinit(host, this_node_name, this_node,
(struct in_addr *)*hp->h_addr_list,
cookie, 0);
fprintf(stderr, "c_client: erl_connect_xinit(): %d\n", ires);
fd = erl_connect(peer_node);
fprintf(stderr, "c_client: erl_connect(): %d\n", fd);
if (fd >= 0)
break;
fprintf(stderr, "c_client: cannot connect, retrying\n");
}
if (fd < 0) {
fprintf(stderr, "c_client: cannot connect, exiting\n");
done(1);
}
env = CORBA_Environment_alloc(INBUFSZ, OUTBUFSZ);
env->_fd = fd;
strcpy(env->_regname, peer_process_name);
env->_to_pid = NULL;
env->_from_pid = &pid;
strcpy(pid.node, this_node);
pid.num = fd;
pid.serial = 0;
pid.creation = 0;
my_gettimeofday(&start);
tres = test_func(env); /* Call test case */
my_gettimeofday(&stop);
showtime(&start, &stop);
erl_close_connection(fd);
printf("c_client: env->_inbuf before : %d\n", INBUFSZ);
printf("c_client: env->_outbuf before : %d\n", OUTBUFSZ);
printf("c_client: env->_inbuf after : %d\n", env->_inbufsz);
printf("c_client: env->_outbuf after : %d\n", env->_outbufsz);
CORBA_free(env->_inbuf);
CORBA_free(env->_outbuf);
CORBA_free(env);
done(tres);
}
int main(void)
#endif
{
ei_x_buff eix;
int index = 0;
ETERM **etermpp = NULL, *etermp = NULL;
char *charp = NULL;
unsigned char uchar, **ucharpp = NULL, *ucharp = NULL;
void *voidp = NULL;
Erl_Heap *erl_heapp = NULL;
int intx = 0;
int *intp = NULL;
unsigned int uintx, *uintp;
unsigned long *ulongp = NULL;
long longx = 0;
double doublex = 0.0;
short shortx = 42;
FILE *filep = NULL;
Erl_IpAddr erl_ipaddr = NULL;
ErlMessage *erlmessagep = NULL;
ErlConnect *erlconnectp = NULL;
struct hostent *hostp = NULL;
struct in_addr *inaddrp = NULL;
/* Converion to erl_interface format is in liberl_interface */
intx = erl_errno;
ei_encode_term(charp, &index, voidp);
ei_x_encode_term(&eix, voidp);
ei_decode_term(charp, &index, voidp);
erl_init(voidp, longx);
erl_connect_init(intx, charp,shortx);
erl_connect_xinit(charp,charp,charp,erl_ipaddr,charp,shortx);
erl_connect(charp);
erl_xconnect(erl_ipaddr,charp);
erl_close_connection(intx);
erl_receive(intx, ucharp, intx);
erl_receive_msg(intx, ucharp, intx, erlmessagep);
erl_xreceive_msg(intx, ucharpp, intp, erlmessagep);
erl_send(intx, etermp, etermp);
erl_reg_send(intx, charp, etermp);
erl_rpc(intx,charp,charp,etermp);
erl_rpc_to(intx,charp,charp,etermp);
erl_rpc_from(intx,intx,erlmessagep);
erl_publish(intx);
erl_accept(intx,erlconnectp);
erl_thiscookie();
erl_thisnodename();
erl_thishostname();
erl_thisalivename();
erl_thiscreation();
erl_unpublish(charp);
erl_err_msg(charp);
erl_err_quit(charp);
erl_err_ret(charp);
erl_err_sys(charp);
erl_cons(etermp,etermp);
erl_copy_term(etermp);
erl_element(intx,etermp);
erl_hd(etermp);
erl_iolist_to_binary(etermp);
erl_iolist_to_string(etermp);
erl_iolist_length(etermp);
erl_length(etermp);
erl_mk_atom(charp);
erl_mk_binary(charp,intx);
erl_mk_empty_list();
erl_mk_estring(charp, intx);
erl_mk_float(doublex);
erl_mk_int(intx);
erl_mk_list(etermpp,intx);
erl_mk_pid(charp,uintx,uintx,uchar);
erl_mk_port(charp,uintx,uchar);
erl_mk_ref(charp,uintx,uchar);
erl_mk_long_ref(charp,uintx,uintx,uintx,uchar);
erl_mk_string(charp);
erl_mk_tuple(etermpp,intx);
erl_mk_uint(uintx);
erl_mk_var(charp);
erl_print_term(filep,etermp);
/* erl_sprint_term(charp,etermp); */
erl_size(etermp);
erl_tl(etermp);
erl_var_content(etermp, charp);
erl_format(charp);
erl_match(etermp, etermp);
erl_global_names(intx, intp);
erl_global_register(intx, charp, etermp);
erl_global_unregister(intx, charp);
erl_global_whereis(intx, charp, charp);
erl_init_malloc(erl_heapp,longx);
erl_alloc_eterm(uchar);
erl_eterm_release();
erl_eterm_statistics(ulongp,ulongp);
erl_free_array(etermpp,intx);
erl_free_term(etermp);
erl_free_compound(etermp);
erl_malloc(longx);
erl_free(voidp);
erl_compare_ext(ucharp, ucharp);
erl_decode(ucharp);
erl_decode_buf(ucharpp);
erl_encode(etermp,ucharp);
erl_encode_buf(etermp,ucharpp);
erl_ext_size(ucharp);
erl_ext_type(ucharp);
erl_peek_ext(ucharp,intx);
erl_term_len(etermp);
erl_gethostbyname(charp);
erl_gethostbyaddr(charp, intx, intx);
erl_gethostbyname_r(charp, hostp, charp, intx, intp);
erl_gethostbyaddr_r(charp, intx, intx, hostp, charp, intx, intp);
erl_init_resolve();
erl_distversion(intx);
erl_epmd_connect(inaddrp);
erl_epmd_port(inaddrp, charp, intp);
charp = ERL_ATOM_PTR(etermp);
intx = ERL_ATOM_SIZE(etermp);
ucharp = ERL_BIN_PTR(etermp);
intx = ERL_BIN_SIZE(etermp);
etermp = ERL_CONS_HEAD(etermp);
etermp = ERL_CONS_TAIL(etermp);
intx = ERL_COUNT(etermp);
doublex= ERL_FLOAT_VALUE(etermp);
uintx = ERL_INT_UVALUE(etermp);
intx = ERL_INT_VALUE(etermp);
intx = ERL_IS_ATOM(etermp);
intx = ERL_IS_BINARY(etermp);
intx = ERL_IS_CONS(etermp);
intx = ERL_IS_EMPTY_LIST(etermp);
intx = ERL_IS_FLOAT(etermp);
intx = ERL_IS_INTEGER(etermp);
intx = ERL_IS_LIST(etermp);
intx = ERL_IS_PID(etermp);
intx = ERL_IS_PORT(etermp);
intx = ERL_IS_REF(etermp);
intx = ERL_IS_TUPLE(etermp);
intx = ERL_IS_UNSIGNED_INTEGER(etermp);
uchar = ERL_PID_CREATION(etermp);
charp = ERL_PID_NODE(etermp);
uintx = ERL_PID_NUMBER(etermp);
uintx = ERL_PID_SERIAL(etermp);
uchar = ERL_PORT_CREATION(etermp);
charp = ERL_PORT_NODE(etermp);
uintx = ERL_PORT_NUMBER(etermp);
uchar = ERL_REF_CREATION(etermp);
intx = ERL_REF_LEN(etermp);
charp = ERL_REF_NODE(etermp);
uintx = ERL_REF_NUMBER(etermp);
uintp = ERL_REF_NUMBERS(etermp);
etermp = ERL_TUPLE_ELEMENT(etermp,intx);
intx = ERL_TUPLE_SIZE(etermp);
return
BUFSIZ +
EAGAIN +
EHOSTUNREACH +
EINVAL +
EIO +
EMSGSIZE +
ENOMEM +
ERL_ATOM +
ERL_BINARY +
ERL_ERROR +
ERL_EXIT +
ERL_FLOAT +
ERL_INTEGER +
ERL_LINK +
ERL_LIST +
ERL_MSG +
ERL_NO_TIMEOUT +
ERL_PID +
ERL_PORT +
ERL_REF +
ERL_REG_SEND +
ERL_SEND +
ERL_SMALL_BIG +
ERL_TICK +
ERL_TIMEOUT +
ERL_TUPLE +
ERL_UNLINK +
ERL_U_INTEGER +
ERL_U_SMALL_BIG +
ERL_VARIABLE +
ETIMEDOUT +
MAXNODELEN +
MAXREGLEN;
}
int main(){
double result=0;
int i=0;
int error = 0;
erlang_pid pid;
char host[HOSTNAMESZ];
char server_node[HOSTNAMESZ];
char client_node[HOSTNAMESZ];
CORBA_Environment *env;
/* Initiate names */
#ifdef __WIN32__
WORD wVersionRequested;
WSADATA wsaData;
wVersionRequested = MAKEWORD(1, 1);
if ((error = WSAStartup(wVersionRequested, &wsaData))) {
fprintf(stderr,"Can't initialize windows sockets: %d",error);
return 0;
}
#endif
error = gethostname(host,HOSTNAMESZ);
if (error) {
#ifdef __WIN32__
fprintf(stderr,"can't find own hostname (error = %ld) !\n",WSAGetLastError());
#else /* not __WIN32__ */
fprintf(stderr,"can't find own hostname !\n");
#endif
}
sprintf(client_node,"%s@%s",CLNODENAME,host);
sprintf(server_node,"%s@%s",SNODENAME,host);
/* Create and init CORBA_Environment */
env = CORBA_Environment_alloc(INBUFSZ,OUTBUFSZ);
/* Initiating the connection */
erl_init(NULL,0);
erl_connect_init(50,COOKIE,0);
/* Initiating pid*/
strcpy(pid.node,client_node);
pid.num = 99;
pid.serial = 0;
pid.creation = 0;
/* Fixing environment variable */
env->_fd=erl_connect(server_node);
strcpy(env->_regname,SREGNAME);
env->_to_pid = NULL;
env->_from_pid = &pid;
if (env->_fd < 0) {
fprintf(stderr,"Error : Cannot connect to Server\n");
/* Free env & buffers */
CORBA_free(env->_inbuf);
CORBA_free(env->_outbuf);
CORBA_free(env);
exit(1);
}
/* Calling the init function */
rmod_random_init(NULL, 1, 2, 3, env);
switch(env->_major) {
case CORBA_NO_EXCEPTION: /* Success */
printf("Init complete !\n");
break;
case CORBA_SYSTEM_EXCEPTION: /* System exception */
printf("Init call failure, reason : %s\n",(char *) CORBA_exception_value(env));
CORBA_exception_free(env);
client_exit(env);
default: /* Should not come here */
client_exit(env);
}
/* Calling the produce function */
for(i=1; i<=10; i++) {
result = rmod_random_produce(NULL, env);
switch(env->_major) {
case CORBA_NO_EXCEPTION: /* Success */
break;
case CORBA_SYSTEM_EXCEPTION: /* System exception */
printf("Init call failure, reason : %s\n",(char *) CORBA_exception_value(env));
CORBA_exception_free(env);
client_exit(env);
default: /* Should not come here */
client_exit(env);
}
printf("the random number nr%d is %f\n",i,result);
}
/* Closing the connection */
erl_close_connection(env->_fd);
/* Free env & buffers */
CORBA_free(env->_inbuf);
CORBA_free(env->_outbuf);
CORBA_free(env);
return 0;
}
void erlang_loop(struct wsgi_request *wsgi_req) {
ErlConnect econn;
ErlMessage em;
ETERM *eresponse;
PyObject *callable = PyDict_GetItemString(uwsgi.embedded_dict, "erlang_func");
if (!callable) {
PyErr_Print();
fprintf(stderr, "- you have not defined a uwsgi.erlang_func callable, Erlang message manager will be disabled until you define it -\n");
}
PyObject *pargs = PyTuple_New(1);
if (!pargs) {
PyErr_Print();
fprintf(stderr, "- error preparing arg tuple for uwsgi.erlang_func callable, Erlang message manager will be disabled -\n");
}
while (uwsgi.workers[uwsgi.mywid].manage_next_request) {
UWSGI_CLEAR_STATUS;
wsgi_req->poll.fd = erl_accept(uwsgi.erlangfd, &econn);
if (wsgi_req->poll.fd >= 0) {
UWSGI_SET_ERLANGING;
for (;;) {
if (erl_receive_msg(wsgi_req->poll.fd, (unsigned char *) wsgi_req->buffer, uwsgi.buffer_size, &em) == ERL_MSG) {
if (em.type == ERL_TICK)
continue;
if (!callable) {
callable = PyDict_GetItemString(uwsgi.embedded_dict, "erlang_func");
}
if (!callable) {
fprintf(stderr, "- you still have not defined a uwsgi.erlang_func callable, Erlang message rejected -\n");
}
PyObject *zero = eterm_to_py(em.msg);
if (em.msg) {
erl_free_compound(em.msg);
}
if (em.to) {
erl_free_compound(em.to);
}
if (!zero) {
PyErr_Print();
continue;
}
if (PyTuple_SetItem(pargs, 0, zero)) {
PyErr_Print();
continue;
}
PyObject *erlang_result = PyEval_CallObject(callable, pargs);
//Py_DECREF(zero);
if (erlang_result) {
eresponse = py_to_eterm(erlang_result);
if (eresponse) {
erl_send(wsgi_req->poll.fd, em.from, eresponse);
erl_free_compound(eresponse);
}
Py_DECREF(erlang_result);
}
if (em.from) {
erl_free_compound(em.from);
}
uwsgi.workers[0].requests++;
uwsgi.workers[uwsgi.mywid].requests++;
if (uwsgi.shared->options[UWSGI_OPTION_LOGGING])
erlang_log();
}
else {
break;
}
}
erl_close_connection(wsgi_req->poll.fd);
UWSGI_UNSET_ERLANGING;
}
}
}
