const char *test_zlib_vmbuf() {
ssize_t data_size;
for (data_size = DATA_SIZE - 5; data_size < DATA_SIZE + 5; ++data_size) {
int data[data_size];
int i;
for (i = 0; i < data_size; ++i) {
data[i] = i;
}
size_t expected_size = compressBound(sizeof(data));
uint8_t *expected = malloc(expected_size);
compress(expected, &expected_size, (uint8_t *)data, sizeof(data));
struct vmbuf compressed = VMBUF_INITIALIZER;
vmbuf_init(&compressed, 128);
if (0 > vmbuf_deflate_ptr(data, sizeof(data), &compressed))
mu_fail("vmbuf_deflate_ptr() failed");
// printf("%zu ==> %zu (%zu)\n", sizeof(data), vmbuf_wlocpos(&compressed), expected_size);
mu_assert_eqi(expected_size + 12 /* gzip header and trailer */, vmbuf_wlocpos(&compressed));
struct vmbuf decompressed = VMBUF_INITIALIZER;
vmbuf_init(&decompressed, 128);
vmbuf_inflate2(&compressed, &decompressed);
mu_assert_eqi(vmbuf_wlocpos(&decompressed), sizeof(data));
typeof(data[0]) *decompressed_buf = vmbuf_mem(&decompressed);
for (i = 0; i < data_size; ++i)
mu_assert_eqi_idx(i, data[i], decompressed_buf[i]);
vmbuf_free(&compressed);
vmbuf_free(&decompressed);
free(expected);
}
return NULL;
}
int vmbuf_inflate(struct vmbuf *buf) {
static struct vmbuf outbuf = VMBUF_INITIALIZER;
vmbuf_init(&outbuf, vmbuf_ravail(buf));
if (0 > vmbuf_inflate2(buf, &outbuf))
return -1;
vmbuf_swap(&outbuf, buf);
return 0;
}