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/* ei.c */
#include "ei.h"
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
typedef unsigned char byte;
int read_cmd(byte *buf);
int write_cmd(byte *buf, int len);
int foo(int x);
int bar(int y);
static void fail(int place) {
fprintf(stderr, "Something went wrong %d\n", place);
exit(1);
}
int main() {
byte buf[100];
int index = 0;
int version = 0;
int arity = 0;
char atom[128];
long in = 0;
int res = 0;
ei_x_buff res_buf;
ei_init();
while (read_cmd(buf) > 0) {
if (ei_decode_version(buf, &index, &version) != 0)
fail(1);
if (ei_decode_tuple_header(buf, &index, &arity) != 0)
fail(2);
if (arity != 2)
fail(3);
if (ei_decode_atom(buf, &index, atom) != 0)
fail(4);
if (ei_decode_long(buf, &index, &in) != 0)
fail(5);
if (strncmp(atom, "foo", 3) == 0) {
res = foo((int)in);
} else if (strncmp(atom, "bar", 3) == 0) {
res = bar((int)in);
}
if (ei_x_new_with_version(&res_buf) != 0)
fail(6);
if (ei_x_encode_long(&res_buf, res) != 0)
fail(7);
write_cmd(res_buf.buff, res_buf.index);
if (ei_x_free(&res_buf) != 0)
fail(8);
index = 0;
}
}
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