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/*
Copyright 2020 Google LLC
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file or at
https://developers.google.com/open-source/licenses/bsd
*/
#include "test-lib.h"
#include "reftable/block.h"
#include "reftable/blocksource.h"
#include "reftable/constants.h"
#include "reftable/reftable-error.h"
static void t_block_read_write(void)
{
const int header_off = 21; /* random */
struct reftable_record recs[30];
const size_t N = ARRAY_SIZE(recs);
const size_t block_size = 1024;
struct reftable_block block = { 0 };
struct block_writer bw = {
.last_key = STRBUF_INIT,
};
struct reftable_record rec = {
.type = BLOCK_TYPE_REF,
};
size_t i = 0;
int ret;
struct block_reader br = { 0 };
struct block_iter it = BLOCK_ITER_INIT;
size_t j = 0;
struct strbuf want = STRBUF_INIT;
REFTABLE_CALLOC_ARRAY(block.data, block_size);
block.len = block_size;
block.source = malloc_block_source();
block_writer_init(&bw, BLOCK_TYPE_REF, block.data, block_size,
header_off, hash_size(GIT_SHA1_FORMAT_ID));
rec.u.ref.refname = (char *) "";
rec.u.ref.value_type = REFTABLE_REF_DELETION;
ret = block_writer_add(&bw, &rec);
check_int(ret, ==, REFTABLE_API_ERROR);
for (i = 0; i < N; i++) {
char name[100];
snprintf(name, sizeof(name), "branch%02"PRIuMAX, (uintmax_t)i);
rec.u.ref.refname = xstrdup(name);
rec.u.ref.value_type = REFTABLE_REF_VAL1;
memset(rec.u.ref.value.val1, i, GIT_SHA1_RAWSZ);
recs[i] = rec;
ret = block_writer_add(&bw, &rec);
rec.u.ref.refname = NULL;
rec.u.ref.value_type = REFTABLE_REF_DELETION;
check_int(ret, ==, 0);
}
ret = block_writer_finish(&bw);
check_int(ret, >, 0);
block_writer_release(&bw);
block_reader_init(&br, &block, header_off, block_size, GIT_SHA1_RAWSZ);
block_iter_seek_start(&it, &br);
while (1) {
ret = block_iter_next(&it, &rec);
check_int(ret, >=, 0);
if (ret > 0) {
check_int(i, ==, N);
break;
}
check(reftable_record_equal(&recs[j], &rec, GIT_SHA1_RAWSZ));
j++;
}
reftable_record_release(&rec);
block_iter_close(&it);
for (i = 0; i < N; i++) {
struct block_iter it = BLOCK_ITER_INIT;
strbuf_reset(&want);
strbuf_addstr(&want, recs[i].u.ref.refname);
ret = block_iter_seek_key(&it, &br, &want);
check_int(ret, ==, 0);
ret = block_iter_next(&it, &rec);
check_int(ret, ==, 0);
check(reftable_record_equal(&recs[i], &rec, GIT_SHA1_RAWSZ));
want.len--;
ret = block_iter_seek_key(&it, &br, &want);
check_int(ret, ==, 0);
ret = block_iter_next(&it, &rec);
check_int(ret, ==, 0);
check(reftable_record_equal(&recs[10 * (i / 10)], &rec, GIT_SHA1_RAWSZ));
block_iter_close(&it);
}
block_reader_release(&br);
reftable_record_release(&rec);
reftable_block_done(&br.block);
strbuf_release(&want);
for (i = 0; i < N; i++)
reftable_record_release(&recs[i]);
}
int cmd_main(int argc, const char *argv[])
{
TEST(t_block_read_write(), "read-write operations on blocks work");
return test_done();
}
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