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// Copyright (c) 2024, Marvin Borner <dev@marvinborner.de>
// SPDX-License-Identifier: MIT
#define _DEFAULT_SOURCE
#include <stdio.h>
#include <dirent.h>
#include <sys/stat.h>
#include <term.h>
#include <parse.h>
#include <print.h>
#include <impl.h>
#define N_IMPLS 5
static size_t file_size(FILE *fp)
{
struct stat st;
fstat(fileno(fp), &st);
return st.st_size;
}
static size_t test_impl(Impl impl, Term *term, FILE *out)
{
rewind(out);
impl.encode(term, out);
size_t size = ftell(out);
rewind(out);
Term *recon = impl.decode(out);
term_diff(term, recon);
term_free(recon);
return size;
}
static void test_all(Impl impls[N_IMPLS], const char *dir_path, FILE *out)
{
char path[1024];
struct dirent *dir_entry;
DIR *dir = opendir(dir_path);
while ((dir_entry = readdir(dir))) {
if (dir_entry->d_type != DT_REG)
continue;
sprintf(path, "%s/%s", dir_path, dir_entry->d_name);
printf("%s\n", path);
FILE *fp = fopen(path, "rb");
Term *term = parse_blc_fp(fp);
for (Impl *impl = impls; impl != impls + N_IMPLS; impl++) {
size_t prev = file_size(fp);
size_t after = test_impl(*impl, term, out);
printf("%s: %lu -> %lu (%f%% reduction)\n", impl->name,
prev, after,
(double)((long)prev - (long)after) /
(double)prev * 100);
}
term_free(term);
fclose(fp);
printf("\n");
}
closedir(dir);
}
int main(void)
{
Impl impls[N_IMPLS] = { impl_blc(), impl_blc2(), impl_closed(),
impl_abs(), impl_app() };
FILE *out = tmpfile();
const char *dir_path = "test/small";
test_all(impls, dir_path, out);
dir_path = "test/medium";
test_all(impls, dir_path, out);
/* dir_path = "test/large"; */
/* test_all(impls, dir_path, out); */
fclose(out);
}
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