static int erl_do_receive_msg(int fd, ei_x_buff* x, ErlMessage* emsg)
{
erlang_msg msg;
int r;
msg.from.node[0] = msg.to.node[0] = msg.toname[0] = '\0';
r = ei_do_receive_msg(fd, 0, &msg, x, 0);
if (r == ERL_MSG) {
int index = 0;
emsg->type = msg.msgtype;
/*
We can't call ei_decode_term for cases where there are no
data following the type information. If there are other
types added later where there are data this case has to be
extended.
*/
switch (msg.msgtype) {
case ERL_SEND:
case ERL_REG_SEND:
case ERL_EXIT:
case ERL_EXIT2:
if (ei_decode_term(x->buff, &index, &emsg->msg) < 0)
r = ERL_ERROR;
break;
default:
emsg->msg = NULL; /* Not needed but may avoid problems for unsafe caller */
break;
}
} else
emsg->msg = NULL;
if (msg.from.node[0] != '\0')
emsg->from = erl_mk_pid(msg.from.node, msg.from.num, msg.from.serial, msg.from.creation);
else
emsg->from = NULL;
if (msg.to.node[0] != '\0')
emsg->to = erl_mk_pid(msg.to.node, msg.to.num, msg.to.serial, msg.to.creation);
else
emsg->to = NULL;
strcpy(emsg->to_name, msg.toname);
return r;
}
int ei_xreceive_msg_tmo(int fd, erlang_msg *msg, ei_x_buff *x, unsigned ms)
{
return ei_do_receive_msg(fd, 0, msg, x, ms);
}
int ei_xreceive_msg(int fd, erlang_msg *msg, ei_x_buff *x)
{
return ei_do_receive_msg(fd, 0, msg, x, 0);
}