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-rw-r--r--reftable/block.c55
-rw-r--r--reftable/block_test.c27
-rw-r--r--reftable/blocksource.c15
-rw-r--r--reftable/generic.c45
-rw-r--r--reftable/iter.c4
-rw-r--r--reftable/merged.c33
-rw-r--r--reftable/pq.c3
-rw-r--r--reftable/pq_test.c27
-rw-r--r--reftable/reader.c117
-rw-r--r--reftable/readwrite_test.c170
-rw-r--r--reftable/record.c366
-rw-r--r--reftable/record.h49
-rw-r--r--reftable/record_test.c199
-rw-r--r--reftable/reftable-record.h14
-rw-r--r--reftable/reftable-writer.h2
-rw-r--r--reftable/reftable.c115
-rw-r--r--reftable/stack.c10
-rw-r--r--reftable/stack_test.c5
-rw-r--r--reftable/system.h11
-rw-r--r--reftable/tree.c4
-rw-r--r--reftable/writer.c70
21 files changed, 776 insertions, 565 deletions
diff --git a/reftable/block.c b/reftable/block.c
index 855e3f5..34d4d07 100644
--- a/reftable/block.c
+++ b/reftable/block.c
@@ -88,8 +88,9 @@ uint8_t block_writer_type(struct block_writer *bw)
return bw->buf[bw->header_off];
}
-/* adds the reftable_record to the block. Returns -1 if it does not fit, 0 on
- success */
+/* Adds the reftable_record to the block. Returns -1 if it does not fit, 0 on
+ success. Returns REFTABLE_API_ERROR if attempting to write a record with
+ empty key. */
int block_writer_add(struct block_writer *w, struct reftable_record *rec)
{
struct strbuf empty = STRBUF_INIT;
@@ -105,8 +106,14 @@ int block_writer_add(struct block_writer *w, struct reftable_record *rec)
int is_restart = 0;
struct strbuf key = STRBUF_INIT;
int n = 0;
+ int err = -1;
reftable_record_key(rec, &key);
+ if (!key.len) {
+ err = REFTABLE_API_ERROR;
+ goto done;
+ }
+
n = reftable_encode_key(&is_restart, out, last, key,
reftable_record_val_type(rec));
if (n < 0)
@@ -118,16 +125,11 @@ int block_writer_add(struct block_writer *w, struct reftable_record *rec)
goto done;
string_view_consume(&out, n);
- if (block_writer_register_restart(w, start.len - out.len, is_restart,
- &key) < 0)
- goto done;
-
- strbuf_release(&key);
- return 0;
-
+ err = block_writer_register_restart(w, start.len - out.len, is_restart,
+ &key);
done:
strbuf_release(&key);
- return -1;
+ return err;
}
int block_writer_finish(struct block_writer *w)
@@ -188,13 +190,16 @@ int block_reader_init(struct block_reader *br, struct reftable_block *block,
uint32_t full_block_size = table_block_size;
uint8_t typ = block->data[header_off];
uint32_t sz = get_be24(block->data + header_off + 1);
-
+ int err = 0;
uint16_t restart_count = 0;
uint32_t restart_start = 0;
uint8_t *restart_bytes = NULL;
+ uint8_t *uncompressed = NULL;
- if (!reftable_is_block_type(typ))
- return REFTABLE_FORMAT_ERROR;
+ if (!reftable_is_block_type(typ)) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
if (typ == BLOCK_TYPE_LOG) {
int block_header_skip = 4 + header_off;
@@ -203,7 +208,7 @@ int block_reader_init(struct block_reader *br, struct reftable_block *block,
uLongf src_len = block->len - block_header_skip;
/* Log blocks specify the *uncompressed* size in their header.
*/
- uint8_t *uncompressed = reftable_malloc(sz);
+ uncompressed = reftable_malloc(sz);
/* Copy over the block header verbatim. It's not compressed. */
memcpy(uncompressed, block->data, block_header_skip);
@@ -212,16 +217,19 @@ int block_reader_init(struct block_reader *br, struct reftable_block *block,
if (Z_OK !=
uncompress2(uncompressed + block_header_skip, &dst_len,
block->data + block_header_skip, &src_len)) {
- reftable_free(uncompressed);
- return REFTABLE_ZLIB_ERROR;
+ err = REFTABLE_ZLIB_ERROR;
+ goto done;
}
- if (dst_len + block_header_skip != sz)
- return REFTABLE_FORMAT_ERROR;
+ if (dst_len + block_header_skip != sz) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
/* We're done with the input data. */
reftable_block_done(block);
block->data = uncompressed;
+ uncompressed = NULL;
block->len = sz;
block->source = malloc_block_source();
full_block_size = src_len + block_header_skip;
@@ -251,7 +259,9 @@ int block_reader_init(struct block_reader *br, struct reftable_block *block,
br->restart_count = restart_count;
br->restart_bytes = restart_bytes;
- return 0;
+done:
+ reftable_free(uncompressed);
+ return err;
}
static uint32_t block_reader_restart_offset(struct block_reader *br, int i)
@@ -324,6 +334,9 @@ int block_iter_next(struct block_iter *it, struct reftable_record *rec)
if (n < 0)
return -1;
+ if (!key.len)
+ return REFTABLE_FORMAT_ERROR;
+
string_view_consume(&in, n);
n = reftable_record_decode(rec, key, extra, in, it->br->hash_size);
if (n < 0)
@@ -350,6 +363,8 @@ int block_reader_first_key(struct block_reader *br, struct strbuf *key)
int n = reftable_decode_key(key, &extra, empty, in);
if (n < 0)
return n;
+ if (!key->len)
+ return REFTABLE_FORMAT_ERROR;
return 0;
}
@@ -413,7 +428,7 @@ int block_reader_seek(struct block_reader *br, struct block_iter *it,
done:
strbuf_release(&key);
strbuf_release(&next.last_key);
- reftable_record_destroy(&rec);
+ reftable_record_release(&rec);
return err;
}
diff --git a/reftable/block_test.c b/reftable/block_test.c
index 4b3ea26..cb88af4 100644
--- a/reftable/block_test.c
+++ b/reftable/block_test.c
@@ -26,8 +26,9 @@ static void test_block_read_write(void)
struct block_writer bw = {
.last_key = STRBUF_INIT,
};
- struct reftable_ref_record ref = { NULL };
- struct reftable_record rec = { NULL };
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_REF,
+ };
int i = 0;
int n;
struct block_reader br = { 0 };
@@ -40,7 +41,11 @@ static void test_block_read_write(void)
block.source = malloc_block_source();
block_writer_init(&bw, BLOCK_TYPE_REF, block.data, block_size,
header_off, hash_size(GIT_SHA1_FORMAT_ID));
- reftable_record_from_ref(&rec, &ref);
+
+ rec.u.ref.refname = "";
+ rec.u.ref.value_type = REFTABLE_REF_DELETION;
+ n = block_writer_add(&bw, &rec);
+ EXPECT(n == REFTABLE_API_ERROR);
for (i = 0; i < N; i++) {
char name[100];
@@ -48,14 +53,14 @@ static void test_block_read_write(void)
snprintf(name, sizeof(name), "branch%02d", i);
memset(hash, i, sizeof(hash));
- ref.refname = name;
- ref.value_type = REFTABLE_REF_VAL1;
- ref.value.val1 = hash;
+ rec.u.ref.refname = name;
+ rec.u.ref.value_type = REFTABLE_REF_VAL1;
+ rec.u.ref.value.val1 = hash;
names[i] = xstrdup(name);
n = block_writer_add(&bw, &rec);
- ref.refname = NULL;
- ref.value_type = REFTABLE_REF_DELETION;
+ rec.u.ref.refname = NULL;
+ rec.u.ref.value_type = REFTABLE_REF_DELETION;
EXPECT(n == 0);
}
@@ -74,7 +79,7 @@ static void test_block_read_write(void)
if (r > 0) {
break;
}
- EXPECT_STREQ(names[j], ref.refname);
+ EXPECT_STREQ(names[j], rec.u.ref.refname);
j++;
}
@@ -92,7 +97,7 @@ static void test_block_read_write(void)
n = block_iter_next(&it, &rec);
EXPECT(n == 0);
- EXPECT_STREQ(names[i], ref.refname);
+ EXPECT_STREQ(names[i], rec.u.ref.refname);
want.len--;
n = block_reader_seek(&br, &it, &want);
@@ -100,7 +105,7 @@ static void test_block_read_write(void)
n = block_iter_next(&it, &rec);
EXPECT(n == 0);
- EXPECT_STREQ(names[10 * (i / 10)], ref.refname);
+ EXPECT_STREQ(names[10 * (i / 10)], rec.u.ref.refname);
block_iter_close(&it);
}
diff --git a/reftable/blocksource.c b/reftable/blocksource.c
index 0044eec..8331b34 100644
--- a/reftable/blocksource.c
+++ b/reftable/blocksource.c
@@ -15,7 +15,8 @@ https://developers.google.com/open-source/licenses/bsd
static void strbuf_return_block(void *b, struct reftable_block *dest)
{
- memset(dest->data, 0xff, dest->len);
+ if (dest->len)
+ memset(dest->data, 0xff, dest->len);
reftable_free(dest->data);
}
@@ -56,7 +57,8 @@ void block_source_from_strbuf(struct reftable_block_source *bs,
static void malloc_return_block(void *b, struct reftable_block *dest)
{
- memset(dest->data, 0xff, dest->len);
+ if (dest->len)
+ memset(dest->data, 0xff, dest->len);
reftable_free(dest->data);
}
@@ -85,7 +87,8 @@ static uint64_t file_size(void *b)
static void file_return_block(void *b, struct reftable_block *dest)
{
- memset(dest->data, 0xff, dest->len);
+ if (dest->len)
+ memset(dest->data, 0xff, dest->len);
reftable_free(dest->data);
}
@@ -134,8 +137,10 @@ int reftable_block_source_from_file(struct reftable_block_source *bs,
}
err = fstat(fd, &st);
- if (err < 0)
- return -1;
+ if (err < 0) {
+ close(fd);
+ return REFTABLE_IO_ERROR;
+ }
p = reftable_calloc(sizeof(struct file_block_source));
p->size = st.st_size;
diff --git a/reftable/generic.c b/reftable/generic.c
index 7a8a738..57f8032 100644
--- a/reftable/generic.c
+++ b/reftable/generic.c
@@ -7,6 +7,7 @@ https://developers.google.com/open-source/licenses/bsd
*/
#include "basics.h"
+#include "constants.h"
#include "record.h"
#include "generic.h"
#include "reftable-iterator.h"
@@ -15,23 +16,21 @@ https://developers.google.com/open-source/licenses/bsd
int reftable_table_seek_ref(struct reftable_table *tab,
struct reftable_iterator *it, const char *name)
{
- struct reftable_ref_record ref = {
- .refname = (char *)name,
- };
- struct reftable_record rec = { NULL };
- reftable_record_from_ref(&rec, &ref);
+ struct reftable_record rec = { .type = BLOCK_TYPE_REF,
+ .u.ref = {
+ .refname = (char *)name,
+ } };
return tab->ops->seek_record(tab->table_arg, it, &rec);
}
int reftable_table_seek_log(struct reftable_table *tab,
struct reftable_iterator *it, const char *name)
{
- struct reftable_log_record log = {
- .refname = (char *)name,
- .update_index = ~((uint64_t)0),
- };
- struct reftable_record rec = { NULL };
- reftable_record_from_log(&rec, &log);
+ struct reftable_record rec = { .type = BLOCK_TYPE_LOG,
+ .u.log = {
+ .refname = (char *)name,
+ .update_index = ~((uint64_t)0),
+ } };
return tab->ops->seek_record(tab->table_arg, it, &rec);
}
@@ -129,17 +128,29 @@ void reftable_iterator_destroy(struct reftable_iterator *it)
int reftable_iterator_next_ref(struct reftable_iterator *it,
struct reftable_ref_record *ref)
{
- struct reftable_record rec = { NULL };
- reftable_record_from_ref(&rec, ref);
- return iterator_next(it, &rec);
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_REF,
+ .u = {
+ .ref = *ref
+ },
+ };
+ int err = iterator_next(it, &rec);
+ *ref = rec.u.ref;
+ return err;
}
int reftable_iterator_next_log(struct reftable_iterator *it,
struct reftable_log_record *log)
{
- struct reftable_record rec = { NULL };
- reftable_record_from_log(&rec, log);
- return iterator_next(it, &rec);
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_LOG,
+ .u = {
+ .log = *log,
+ },
+ };
+ int err = iterator_next(it, &rec);
+ *log = rec.u.log;
+ return err;
}
int iterator_next(struct reftable_iterator *it, struct reftable_record *rec)
diff --git a/reftable/iter.c b/reftable/iter.c
index 93d04f7..a8d174c 100644
--- a/reftable/iter.c
+++ b/reftable/iter.c
@@ -32,7 +32,7 @@ static int filtering_ref_iterator_next(void *iter_arg,
struct reftable_record *rec)
{
struct filtering_ref_iterator *fri = iter_arg;
- struct reftable_ref_record *ref = rec->data;
+ struct reftable_ref_record *ref = &rec->u.ref;
int err = 0;
while (1) {
err = reftable_iterator_next_ref(&fri->it, ref);
@@ -127,7 +127,7 @@ static int indexed_table_ref_iter_next_block(struct indexed_table_ref_iter *it)
static int indexed_table_ref_iter_next(void *p, struct reftable_record *rec)
{
struct indexed_table_ref_iter *it = p;
- struct reftable_ref_record *ref = rec->data;
+ struct reftable_ref_record *ref = &rec->u.ref;
while (1) {
int err = block_iter_next(&it->cur, rec);
diff --git a/reftable/merged.c b/reftable/merged.c
index e5b53da..2a6efa1 100644
--- a/reftable/merged.c
+++ b/reftable/merged.c
@@ -30,7 +30,7 @@ static int merged_iter_init(struct merged_iter *mi)
if (err > 0) {
reftable_iterator_destroy(&mi->stack[i]);
- reftable_record_destroy(&rec);
+ reftable_record_release(&rec);
} else {
struct pq_entry e = {
.rec = rec,
@@ -57,18 +57,17 @@ static void merged_iter_close(void *p)
static int merged_iter_advance_nonnull_subiter(struct merged_iter *mi,
size_t idx)
{
- struct reftable_record rec = reftable_new_record(mi->typ);
struct pq_entry e = {
- .rec = rec,
+ .rec = reftable_new_record(mi->typ),
.index = idx,
};
- int err = iterator_next(&mi->stack[idx], &rec);
+ int err = iterator_next(&mi->stack[idx], &e.rec);
if (err < 0)
return err;
if (err > 0) {
reftable_iterator_destroy(&mi->stack[idx]);
- reftable_record_destroy(&rec);
+ reftable_record_release(&e.rec);
return 0;
}
@@ -126,11 +125,11 @@ static int merged_iter_next_entry(struct merged_iter *mi,
if (err < 0) {
return err;
}
- reftable_record_destroy(&top.rec);
+ reftable_record_release(&top.rec);
}
reftable_record_copy_from(rec, &entry.rec, hash_size(mi->hash_id));
- reftable_record_destroy(&entry.rec);
+ reftable_record_release(&entry.rec);
strbuf_release(&entry_key);
return 0;
}
@@ -290,11 +289,12 @@ int reftable_merged_table_seek_ref(struct reftable_merged_table *mt,
struct reftable_iterator *it,
const char *name)
{
- struct reftable_ref_record ref = {
- .refname = (char *)name,
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_REF,
+ .u.ref = {
+ .refname = (char *)name,
+ },
};
- struct reftable_record rec = { NULL };
- reftable_record_from_ref(&rec, &ref);
return merged_table_seek_record(mt, it, &rec);
}
@@ -302,12 +302,11 @@ int reftable_merged_table_seek_log_at(struct reftable_merged_table *mt,
struct reftable_iterator *it,
const char *name, uint64_t update_index)
{
- struct reftable_log_record log = {
- .refname = (char *)name,
- .update_index = update_index,
- };
- struct reftable_record rec = { NULL };
- reftable_record_from_log(&rec, &log);
+ struct reftable_record rec = { .type = BLOCK_TYPE_LOG,
+ .u.log = {
+ .refname = (char *)name,
+ .update_index = update_index,
+ } };
return merged_table_seek_record(mt, it, &rec);
}
diff --git a/reftable/pq.c b/reftable/pq.c
index efc4740..96ca6dd 100644
--- a/reftable/pq.c
+++ b/reftable/pq.c
@@ -74,6 +74,7 @@ struct pq_entry merged_iter_pqueue_remove(struct merged_iter_pqueue *pq)
void merged_iter_pqueue_add(struct merged_iter_pqueue *pq, struct pq_entry e)
{
int i = 0;
+
if (pq->len == pq->cap) {
pq->cap = 2 * pq->cap + 1;
pq->heap = reftable_realloc(pq->heap,
@@ -98,7 +99,7 @@ void merged_iter_pqueue_release(struct merged_iter_pqueue *pq)
{
int i = 0;
for (i = 0; i < pq->len; i++) {
- reftable_record_destroy(&pq->heap[i].rec);
+ reftable_record_release(&pq->heap[i].rec);
}
FREE_AND_NULL(pq->heap);
pq->len = pq->cap = 0;
diff --git a/reftable/pq_test.c b/reftable/pq_test.c
index c9bb05e..7de5e88 100644
--- a/reftable/pq_test.c
+++ b/reftable/pq_test.c
@@ -31,7 +31,7 @@ static void test_pq(void)
int N = ARRAY_SIZE(names) - 1;
struct merged_iter_pqueue pq = { NULL };
- const char *last = NULL;
+ char *last = NULL;
int i = 0;
for (i = 0; i < N; i++) {
@@ -42,12 +42,10 @@ static void test_pq(void)
i = 1;
do {
- struct reftable_record rec =
- reftable_new_record(BLOCK_TYPE_REF);
- struct pq_entry e = { 0 };
-
- reftable_record_as_ref(&rec)->refname = names[i];
- e.rec = rec;
+ struct pq_entry e = { .rec = { .type = BLOCK_TYPE_REF,
+ .u.ref = {
+ .refname = names[i],
+ } } };
merged_iter_pqueue_add(&pq, e);
merged_iter_pqueue_check(pq);
i = (i * 7) % N;
@@ -55,19 +53,18 @@ static void test_pq(void)
while (!merged_iter_pqueue_is_empty(pq)) {
struct pq_entry e = merged_iter_pqueue_remove(&pq);
- struct reftable_ref_record *ref =
- reftable_record_as_ref(&e.rec);
-
+ struct reftable_record *rec = &e.rec;
merged_iter_pqueue_check(pq);
+ EXPECT(reftable_record_type(rec) == BLOCK_TYPE_REF);
if (last) {
- EXPECT(strcmp(last, ref->refname) < 0);
+ EXPECT(strcmp(last, rec->u.ref.refname) < 0);
}
- last = ref->refname;
- ref->refname = NULL;
- reftable_free(ref);
+ // this is names[i], so don't dealloc.
+ last = rec->u.ref.refname;
+ rec->u.ref.refname = NULL;
+ reftable_record_release(rec);
}
-
for (i = 0; i < N; i++) {
reftable_free(names[i]);
}
diff --git a/reftable/reader.c b/reftable/reader.c
index 006709a..54b4025 100644
--- a/reftable/reader.c
+++ b/reftable/reader.c
@@ -155,6 +155,11 @@ static int parse_footer(struct reftable_reader *r, uint8_t *footer,
r->log_offsets.is_present = (first_block_typ == BLOCK_TYPE_LOG ||
r->log_offsets.offset > 0);
r->obj_offsets.is_present = r->obj_offsets.offset > 0;
+ if (r->obj_offsets.is_present && !r->object_id_len) {
+ err = REFTABLE_FORMAT_ERROR;
+ goto done;
+ }
+
err = 0;
done:
return err;
@@ -239,8 +244,7 @@ static int table_iter_next_in_block(struct table_iter *ti,
{
int res = block_iter_next(&ti->bi, rec);
if (res == 0 && reftable_record_type(rec) == BLOCK_TYPE_REF) {
- ((struct reftable_ref_record *)rec->data)->update_index +=
- ti->r->min_update_index;
+ rec->u.ref.update_index += ti->r->min_update_index;
}
return res;
@@ -290,28 +294,33 @@ int reader_init_block_reader(struct reftable_reader *r, struct block_reader *br,
err = reader_get_block(r, &block, next_off, guess_block_size);
if (err < 0)
- return err;
+ goto done;
block_size = extract_block_size(block.data, &block_typ, next_off,
r->version);
- if (block_size < 0)
- return block_size;
-
+ if (block_size < 0) {
+ err = block_size;
+ goto done;
+ }
if (want_typ != BLOCK_TYPE_ANY && block_typ != want_typ) {
- reftable_block_done(&block);
- return 1;
+ err = 1;
+ goto done;
}
if (block_size > guess_block_size) {
reftable_block_done(&block);
err = reader_get_block(r, &block, next_off, block_size);
if (err < 0) {
- return err;
+ goto done;
}
}
- return block_reader_init(br, &block, header_off, r->block_size,
- hash_size(r->hash_id));
+ err = block_reader_init(br, &block, header_off, r->block_size,
+ hash_size(r->hash_id));
+done:
+ reftable_block_done(&block);
+
+ return err;
}
static int table_iter_next_block(struct table_iter *dest,
@@ -475,7 +484,7 @@ static int reader_seek_linear(struct reftable_reader *r, struct table_iter *ti,
done:
block_iter_close(&next.bi);
- reftable_record_destroy(&rec);
+ reftable_record_release(&rec);
strbuf_release(&want_key);
strbuf_release(&got_key);
return err;
@@ -485,34 +494,35 @@ static int reader_seek_indexed(struct reftable_reader *r,
struct reftable_iterator *it,
struct reftable_record *rec)
{
- struct reftable_index_record want_index = { .last_key = STRBUF_INIT };
- struct reftable_record want_index_rec = { NULL };
- struct reftable_index_record index_result = { .last_key = STRBUF_INIT };
- struct reftable_record index_result_rec = { NULL };
+ struct reftable_record want_index = {
+ .type = BLOCK_TYPE_INDEX, .u.idx = { .last_key = STRBUF_INIT }
+ };
+ struct reftable_record index_result = {
+ .type = BLOCK_TYPE_INDEX,
+ .u.idx = { .last_key = STRBUF_INIT },
+ };
struct table_iter index_iter = TABLE_ITER_INIT;
struct table_iter next = TABLE_ITER_INIT;
int err = 0;
- reftable_record_key(rec, &want_index.last_key);
- reftable_record_from_index(&want_index_rec, &want_index);
- reftable_record_from_index(&index_result_rec, &index_result);
-
+ reftable_record_key(rec, &want_index.u.idx.last_key);
err = reader_start(r, &index_iter, reftable_record_type(rec), 1);
if (err < 0)
goto done;
- err = reader_seek_linear(r, &index_iter, &want_index_rec);
+ err = reader_seek_linear(r, &index_iter, &want_index);
while (1) {
- err = table_iter_next(&index_iter, &index_result_rec);
+ err = table_iter_next(&index_iter, &index_result);
table_iter_block_done(&index_iter);
if (err != 0)
goto done;
- err = reader_table_iter_at(r, &next, index_result.offset, 0);
+ err = reader_table_iter_at(r, &next, index_result.u.idx.offset,
+ 0);
if (err != 0)
goto done;
- err = block_iter_seek(&next.bi, &want_index.last_key);
+ err = block_iter_seek(&next.bi, &want_index.u.idx.last_key);
if (err < 0)
goto done;
@@ -540,8 +550,8 @@ static int reader_seek_indexed(struct reftable_reader *r,
done:
block_iter_close(&next.bi);
table_iter_close(&index_iter);
- reftable_record_release(&want_index_rec);
- reftable_record_release(&index_result_rec);
+ reftable_record_release(&want_index);
+ reftable_record_release(&index_result);
return err;
}
@@ -590,11 +600,12 @@ static int reader_seek(struct reftable_reader *r, struct reftable_iterator *it,
int reftable_reader_seek_ref(struct reftable_reader *r,
struct reftable_iterator *it, const char *name)
{
- struct reftable_ref_record ref = {
- .refname = (char *)name,
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_REF,
+ .u.ref = {
+ .refname = (char *)name,
+ },
};
- struct reftable_record rec = { NULL };
- reftable_record_from_ref(&rec, &ref);
return reader_seek(r, it, &rec);
}
@@ -602,12 +613,11 @@ int reftable_reader_seek_log_at(struct reftable_reader *r,
struct reftable_iterator *it, const char *name,
uint64_t update_index)
{
- struct reftable_log_record log = {
- .refname = (char *)name,
- .update_index = update_index,
- };
- struct reftable_record rec = { NULL };
- reftable_record_from_log(&rec, &log);
+ struct reftable_record rec = { .type = BLOCK_TYPE_LOG,
+ .u.log = {
+ .refname = (char *)name,
+ .update_index = update_index,
+ } };
return reader_seek(r, it, &rec);
}
@@ -641,6 +651,8 @@ int reftable_new_reader(struct reftable_reader **p,
void reftable_reader_free(struct reftable_reader *r)
{
+ if (!r)
+ return;
reader_close(r);
reftable_free(r);
}
@@ -649,31 +661,33 @@ static int reftable_reader_refs_for_indexed(struct reftable_reader *r,
struct reftable_iterator *it,
uint8_t *oid)
{
- struct reftable_obj_record want = {
- .hash_prefix = oid,
- .hash_prefix_len = r->object_id_len,
+ struct reftable_record want = {
+ .type = BLOCK_TYPE_OBJ,
+ .u.obj = {
+ .hash_prefix = oid,
+ .hash_prefix_len = r->object_id_len,
+ },
};
- struct reftable_record want_rec = { NULL };
struct reftable_iterator oit = { NULL };
- struct reftable_obj_record got = { NULL };
- struct reftable_record got_rec = { NULL };
+ struct reftable_record got = {
+ .type = BLOCK_TYPE_OBJ,
+ .u.obj = { 0 },
+ };
int err = 0;
struct indexed_table_ref_iter *itr = NULL;
/* Look through the reverse index. */
- reftable_record_from_obj(&want_rec, &want);
- err = reader_seek(r, &oit, &want_rec);
+ err = reader_seek(r, &oit, &want);
if (err != 0)
goto done;
/* read out the reftable_obj_record */
- reftable_record_from_obj(&got_rec, &got);
- err = iterator_next(&oit, &got_rec);
+ err = iterator_next(&oit, &got);
if (err < 0)
goto done;
- if (err > 0 ||
- memcmp(want.hash_prefix, got.hash_prefix, r->object_id_len)) {
+ if (err > 0 || memcmp(want.u.obj.hash_prefix, got.u.obj.hash_prefix,
+ r->object_id_len)) {
/* didn't find it; return empty iterator */
iterator_set_empty(it);
err = 0;
@@ -681,15 +695,16 @@ static int reftable_reader_refs_for_indexed(struct reftable_reader *r,
}
err = new_indexed_table_ref_iter(&itr, r, oid, hash_size(r->hash_id),
- got.offsets, got.offset_len);
+ got.u.obj.offsets,
+ got.u.obj.offset_len);
if (err < 0)
goto done;
- got.offsets = NULL;
+ got.u.obj.offsets = NULL;
iterator_from_indexed_table_ref_iter(it, itr);
done:
reftable_iterator_destroy(&oit);
- reftable_record_release(&got_rec);
+ reftable_record_release(&got);
return err;
}
diff --git a/reftable/readwrite_test.c b/reftable/readwrite_test.c
index 70c7aed..469ab79 100644
--- a/reftable/readwrite_test.c
+++ b/reftable/readwrite_test.c
@@ -100,7 +100,7 @@ static void write_table(char ***names, struct strbuf *buf, int N,
n = reftable_writer_close(w);
EXPECT(n == 0);
- stats = writer_stats(w);
+ stats = reftable_writer_stats(w);
for (i = 0; i < stats->ref_stats.blocks; i++) {
int off = i * opts.block_size;
if (off == 0) {
@@ -239,7 +239,7 @@ static void test_log_write_read(void)
n = reftable_writer_close(w);
EXPECT(n == 0);
- stats = writer_stats(w);
+ stats = reftable_writer_stats(w);
EXPECT(stats->log_stats.blocks > 0);
reftable_writer_free(w);
w = NULL;
@@ -288,6 +288,71 @@ static void test_log_write_read(void)
reader_close(&rd);
}
+static void test_log_zlib_corruption(void)
+{
+ struct reftable_write_options opts = {
+ .block_size = 256,
+ };
+ struct reftable_iterator it = { 0 };
+ struct reftable_reader rd = { 0 };
+ struct reftable_block_source source = { 0 };
+ struct strbuf buf = STRBUF_INIT;
+ struct reftable_writer *w =
+ reftable_new_writer(&strbuf_add_void, &buf, &opts);
+ const struct reftable_stats *stats = NULL;
+ uint8_t hash1[GIT_SHA1_RAWSZ] = { 1 };
+ uint8_t hash2[GIT_SHA1_RAWSZ] = { 2 };
+ char message[100] = { 0 };
+ int err, i, n;
+
+ struct reftable_log_record log = {
+ .refname = "refname",
+ .value_type = REFTABLE_LOG_UPDATE,
+ .value = {
+ .update = {
+ .new_hash = hash1,
+ .old_hash = hash2,
+ .name = "My Name",
+ .email = "myname@invalid",
+ .message = message,
+ },
+ },
+ };
+
+ for (i = 0; i < sizeof(message) - 1; i++)
+ message[i] = (uint8_t)(rand() % 64 + ' ');
+
+ reftable_writer_set_limits(w, 1, 1);
+
+ err = reftable_writer_add_log(w, &log);
+ EXPECT_ERR(err);
+
+ n = reftable_writer_close(w);
+ EXPECT(n == 0);
+
+ stats = reftable_writer_stats(w);
+ EXPECT(stats->log_stats.blocks > 0);
+ reftable_writer_free(w);
+ w = NULL;
+
+ /* corrupt the data. */
+ buf.buf[50] ^= 0x99;
+
+ block_source_from_strbuf(&source, &buf);
+
+ err = init_reader(&rd, &source, "file.log");
+ EXPECT_ERR(err);
+
+ err = reftable_reader_seek_log(&rd, &it, "refname");
+ EXPECT(err == REFTABLE_ZLIB_ERROR);
+
+ reftable_iterator_destroy(&it);
+
+ /* cleanup. */
+ strbuf_release(&buf);
+ reader_close(&rd);
+}
+
static void test_table_read_write_sequential(void)
{
char **names;
@@ -602,6 +667,102 @@ static void test_write_empty_table(void)
strbuf_release(&buf);
}
+static void test_write_object_id_min_length(void)
+{
+ struct reftable_write_options opts = {
+ .block_size = 75,
+ };
+ struct strbuf buf = STRBUF_INIT;
+ struct reftable_writer *w =
+ reftable_new_writer(&strbuf_add_void, &buf, &opts);
+ uint8_t hash[GIT_SHA1_RAWSZ] = {42};
+ struct reftable_ref_record ref = {
+ .update_index = 1,
+ .value_type = REFTABLE_REF_VAL1,
+ .value.val1 = hash,
+ };
+ int err;
+ int i;
+
+ reftable_writer_set_limits(w, 1, 1);
+
+ /* Write the same hash in many refs. If there is only 1 hash, the
+ * disambiguating prefix is length 0 */
+ for (i = 0; i < 256; i++) {
+ char name[256];
+ snprintf(name, sizeof(name), "ref%05d", i);
+ ref.refname = name;
+ err = reftable_writer_add_ref(w, &ref);
+ EXPECT_ERR(err);
+ }
+
+ err = reftable_writer_close(w);
+ EXPECT_ERR(err);
+ EXPECT(reftable_writer_stats(w)->object_id_len == 2);
+ reftable_writer_free(w);
+ strbuf_release(&buf);
+}
+
+static void test_write_object_id_length(void)
+{
+ struct reftable_write_options opts = {
+ .block_size = 75,
+ };
+ struct strbuf buf = STRBUF_INIT;
+ struct reftable_writer *w =
+ reftable_new_writer(&strbuf_add_void, &buf, &opts);
+ uint8_t hash[GIT_SHA1_RAWSZ] = {42};
+ struct reftable_ref_record ref = {
+ .update_index = 1,
+ .value_type = REFTABLE_REF_VAL1,
+ .value.val1 = hash,
+ };
+ int err;
+ int i;
+
+ reftable_writer_set_limits(w, 1, 1);
+
+ /* Write the same hash in many refs. If there is only 1 hash, the
+ * disambiguating prefix is length 0 */
+ for (i = 0; i < 256; i++) {
+ char name[256];
+ snprintf(name, sizeof(name), "ref%05d", i);
+ ref.refname = name;
+ ref.value.val1[15] = i;
+ err = reftable_writer_add_ref(w, &ref);
+ EXPECT_ERR(err);
+ }
+
+ err = reftable_writer_close(w);
+ EXPECT_ERR(err);
+ EXPECT(reftable_writer_stats(w)->object_id_len == 16);
+ reftable_writer_free(w);
+ strbuf_release(&buf);
+}
+
+static void test_write_empty_key(void)
+{
+ struct reftable_write_options opts = { 0 };
+ struct strbuf buf = STRBUF_INIT;
+ struct reftable_writer *w =
+ reftable_new_writer(&strbuf_add_void, &buf, &opts);
+ struct reftable_ref_record ref = {
+ .refname = "",
+ .update_index = 1,
+ .value_type = REFTABLE_REF_DELETION,
+ };
+ int err;
+
+ reftable_writer_set_limits(w, 1, 1);
+ err = reftable_writer_add_ref(w, &ref);
+ EXPECT(err == REFTABLE_API_ERROR);
+
+ err = reftable_writer_close(w);
+ EXPECT(err == REFTABLE_EMPTY_TABLE_ERROR);
+ reftable_writer_free(w);
+ strbuf_release(&buf);
+}
+
static void test_write_key_order(void)
{
struct reftable_write_options opts = { 0 };
@@ -631,7 +792,6 @@ static void test_write_key_order(void)
err = reftable_writer_add_ref(w, &refs[0]);
EXPECT_ERR(err);
err = reftable_writer_add_ref(w, &refs[1]);
- printf("%d\n", err);
EXPECT(err == REFTABLE_API_ERROR);
reftable_writer_close(w);
reftable_writer_free(w);
@@ -667,6 +827,7 @@ static void test_corrupt_table(void)
int readwrite_test_main(int argc, const char *argv[])
{
+ RUN_TEST(test_log_zlib_corruption);
RUN_TEST(test_corrupt_table);
RUN_TEST(test_corrupt_table_empty);
RUN_TEST(test_log_write_read);
@@ -681,7 +842,10 @@ int readwrite_test_main(int argc, const char *argv[])
RUN_TEST(test_table_read_write_seek_index);
RUN_TEST(test_table_refs_for_no_index);
RUN_TEST(test_table_refs_for_obj_index);
+ RUN_TEST(test_write_empty_key);
RUN_TEST(test_write_empty_table);
RUN_TEST(test_log_overflow);
+ RUN_TEST(test_write_object_id_length);
+ RUN_TEST(test_write_object_id_min_length);
return 0;
}
diff --git a/reftable/record.c b/reftable/record.c
index 6a5dac3..fbaa1fb 100644
--- a/reftable/record.c
+++ b/reftable/record.c
@@ -15,6 +15,10 @@ https://developers.google.com/open-source/licenses/bsd
#include "reftable-error.h"
#include "basics.h"
+static struct reftable_record_vtable *
+reftable_record_vtable(struct reftable_record *rec);
+static void *reftable_record_data(struct reftable_record *rec);
+
int get_var_int(uint64_t *dest, struct string_view *in)
{
int ptr = 0;
@@ -72,7 +76,7 @@ int reftable_is_block_type(uint8_t typ)
return 0;
}
-uint8_t *reftable_ref_record_val1(struct reftable_ref_record *rec)
+uint8_t *reftable_ref_record_val1(const struct reftable_ref_record *rec)
{
switch (rec->value_type) {
case REFTABLE_REF_VAL1:
@@ -84,7 +88,7 @@ uint8_t *reftable_ref_record_val1(struct reftable_ref_record *rec)
}
}
-uint8_t *reftable_ref_record_val2(struct reftable_ref_record *rec)
+uint8_t *reftable_ref_record_val2(const struct reftable_ref_record *rec)
{
switch (rec->value_type) {
case REFTABLE_REF_VAL2:
@@ -251,24 +255,24 @@ static void hex_format(char *dest, uint8_t *src, int hash_size)
}
}
-void reftable_ref_record_print(struct reftable_ref_record *ref,
- uint32_t hash_id)
+static void reftable_ref_record_print_sz(const struct reftable_ref_record *ref,
+ int hash_size)
{
- char hex[2 * GIT_SHA256_RAWSZ + 1] = { 0 }; /* BUG */
+ char hex[GIT_MAX_HEXSZ + 1] = { 0 }; /* BUG */
printf("ref{%s(%" PRIu64 ") ", ref->refname, ref->update_index);
switch (ref->value_type) {
case REFTABLE_REF_SYMREF:
printf("=> %s", ref->value.symref);
break;
case REFTABLE_REF_VAL2:
- hex_format(hex, ref->value.val2.value, hash_size(hash_id));
+ hex_format(hex, ref->value.val2.value, hash_size);
printf("val 2 %s", hex);
hex_format(hex, ref->value.val2.target_value,
- hash_size(hash_id));
+ hash_size);
printf("(T %s)", hex);
break;
case REFTABLE_REF_VAL1:
- hex_format(hex, ref->value.val1, hash_size(hash_id));
+ hex_format(hex, ref->value.val1, hash_size);
printf("val 1 %s", hex);
break;
case REFTABLE_REF_DELETION:
@@ -278,6 +282,11 @@ void reftable_ref_record_print(struct reftable_ref_record *ref,
printf("}\n");
}
+void reftable_ref_record_print(const struct reftable_ref_record *ref,
+ uint32_t hash_id) {
+ reftable_ref_record_print_sz(ref, hash_size(hash_id));
+}
+
static void reftable_ref_record_release_void(void *rec)
{
reftable_ref_record_release(rec);
@@ -430,6 +439,21 @@ static int reftable_ref_record_is_deletion_void(const void *p)
(const struct reftable_ref_record *)p);
}
+
+static int reftable_ref_record_equal_void(const void *a,
+ const void *b, int hash_size)
+{
+ struct reftable_ref_record *ra = (struct reftable_ref_record *) a;
+ struct reftable_ref_record *rb = (struct reftable_ref_record *) b;
+ return reftable_ref_record_equal(ra, rb, hash_size);
+}
+
+static void reftable_ref_record_print_void(const void *rec,
+ int hash_size)
+{
+ reftable_ref_record_print_sz((struct reftable_ref_record *) rec, hash_size);
+}
+
static struct reftable_record_vtable reftable_ref_record_vtable = {
.key = &reftable_ref_record_key,
.type = BLOCK_TYPE_REF,
@@ -439,6 +463,8 @@ static struct reftable_record_vtable reftable_ref_record_vtable = {
.decode = &reftable_ref_record_decode,
.release = &reftable_ref_record_release_void,
.is_deletion = &reftable_ref_record_is_deletion_void,
+ .equal = &reftable_ref_record_equal_void,
+ .print = &reftable_ref_record_print_void,
};
static void reftable_obj_record_key(const void *r, struct strbuf *dest)
@@ -457,6 +483,21 @@ static void reftable_obj_record_release(void *rec)
memset(obj, 0, sizeof(struct reftable_obj_record));
}
+static void reftable_obj_record_print(const void *rec, int hash_size)
+{
+ const struct reftable_obj_record *obj = rec;
+ char hex[GIT_MAX_HEXSZ + 1] = { 0 };
+ struct strbuf offset_str = STRBUF_INIT;
+ int i;
+
+ for (i = 0; i < obj->offset_len; i++)
+ strbuf_addf(&offset_str, "%" PRIu64 " ", obj->offsets[i]);
+ hex_format(hex, obj->hash_prefix, obj->hash_prefix_len);
+ printf("prefix %s (len %d), offsets [%s]\n",
+ hex, obj->hash_prefix_len, offset_str.buf);
+ strbuf_release(&offset_str);
+}
+
static void reftable_obj_record_copy_from(void *rec, const void *src_rec,
int hash_size)
{
@@ -465,12 +506,14 @@ static void reftable_obj_record_copy_from(void *rec, const void *src_rec,
(const struct reftable_obj_record *)src_rec;
reftable_obj_record_release(obj);
- *obj = *src;
- obj->hash_prefix = reftable_malloc(obj->hash_prefix_len);
- memcpy(obj->hash_prefix, src->hash_prefix, obj->hash_prefix_len);
+ obj->hash_prefix = reftable_malloc(src->hash_prefix_len);
+ obj->hash_prefix_len = src->hash_prefix_len;
+ if (src->hash_prefix_len)
+ memcpy(obj->hash_prefix, src->hash_prefix, obj->hash_prefix_len);
- obj->offsets = reftable_malloc(obj->offset_len * sizeof(uint64_t));
- COPY_ARRAY(obj->offsets, src->offsets, obj->offset_len);
+ obj->offsets = reftable_malloc(src->offset_len * sizeof(uint64_t));
+ obj->offset_len = src->offset_len;
+ COPY_ARRAY(obj->offsets, src->offsets, src->offset_len);
}
static uint8_t reftable_obj_record_val_type(const void *rec)
@@ -572,6 +615,25 @@ static int not_a_deletion(const void *p)
return 0;
}
+static int reftable_obj_record_equal_void(const void *a, const void *b, int hash_size)
+{
+ struct reftable_obj_record *ra = (struct reftable_obj_record *) a;
+ struct reftable_obj_record *rb = (struct reftable_obj_record *) b;
+
+ if (ra->hash_prefix_len != rb->hash_prefix_len
+ || ra->offset_len != rb->offset_len)
+ return 0;
+
+ if (ra->hash_prefix_len &&
+ memcmp(ra->hash_prefix, rb->hash_prefix, ra->hash_prefix_len))
+ return 0;
+ if (ra->offset_len &&
+ memcmp(ra->offsets, rb->offsets, ra->offset_len * sizeof(uint64_t)))
+ return 0;
+
+ return 1;
+}
+
static struct reftable_record_vtable reftable_obj_record_vtable = {
.key = &reftable_obj_record_key,
.type = BLOCK_TYPE_OBJ,
@@ -580,32 +642,43 @@ static struct reftable_record_vtable reftable_obj_record_vtable = {
.encode = &reftable_obj_record_encode,
.decode = &reftable_obj_record_decode,
.release = &reftable_obj_record_release,
- .is_deletion = not_a_deletion,
+ .is_deletion = &not_a_deletion,
+ .equal = &reftable_obj_record_equal_void,
+ .print = &reftable_obj_record_print,
};
-void reftable_log_record_print(struct reftable_log_record *log,
- uint32_t hash_id)
+static void reftable_log_record_print_sz(struct reftable_log_record *log,
+ int hash_size)
{
- char hex[GIT_SHA256_RAWSZ + 1] = { 0 };
+ char hex[GIT_MAX_HEXSZ + 1] = { 0 };
switch (log->value_type) {
case REFTABLE_LOG_DELETION:
- printf("log{%s(%" PRIu64 ") delete", log->refname,
+ printf("log{%s(%" PRIu64 ") delete\n", log->refname,
log->update_index);
break;
case REFTABLE_LOG_UPDATE:
printf("log{%s(%" PRIu64 ") %s <%s> %" PRIu64 " %04d\n",
- log->refname, log->update_index, log->value.update.name,
- log->value.update.email, log->value.update.time,
+ log->refname, log->update_index,
+ log->value.update.name ? log->value.update.name : "",
+ log->value.update.email ? log->value.update.email : "",
+ log->value.update.time,
log->value.update.tz_offset);
- hex_format(hex, log->value.update.old_hash, hash_size(hash_id));
+ hex_format(hex, log->value.update.old_hash, hash_size);
printf("%s => ", hex);
- hex_format(hex, log->value.update.new_hash, hash_size(hash_id));
- printf("%s\n\n%s\n}\n", hex, log->value.update.message);
+ hex_format(hex, log->value.update.new_hash, hash_size);
+ printf("%s\n\n%s\n}\n", hex,
+ log->value.update.message ? log->value.update.message : "");
break;
}
}
+void reftable_log_record_print(struct reftable_log_record *log,
+ uint32_t hash_id)
+{
+ reftable_log_record_print_sz(log, hash_size(hash_id));
+}
+
static void reftable_log_record_key(const void *r, struct strbuf *dest)
{
const struct reftable_log_record *rec =
@@ -881,8 +954,16 @@ static int zero_hash_eq(uint8_t *a, uint8_t *b, int sz)
return !memcmp(a, b, sz);
}
-int reftable_log_record_equal(struct reftable_log_record *a,
- struct reftable_log_record *b, int hash_size)
+static int reftable_log_record_equal_void(const void *a,
+ const void *b, int hash_size)
+{
+ return reftable_log_record_equal((struct reftable_log_record *) a,
+ (struct reftable_log_record *) b,
+ hash_size);
+}
+
+int reftable_log_record_equal(const struct reftable_log_record *a,
+ const struct reftable_log_record *b, int hash_size)
{
if (!(null_streq(a->refname, b->refname) &&
a->update_index == b->update_index &&
@@ -915,6 +996,11 @@ static int reftable_log_record_is_deletion_void(const void *p)
(const struct reftable_log_record *)p);
}
+static void reftable_log_record_print_void(const void *rec, int hash_size)
+{
+ reftable_log_record_print_sz((struct reftable_log_record*)rec, hash_size);
+}
+
static struct reftable_record_vtable reftable_log_record_vtable = {
.key = &reftable_log_record_key,
.type = BLOCK_TYPE_LOG,
@@ -924,60 +1010,10 @@ static struct reftable_record_vtable reftable_log_record_vtable = {
.decode = &reftable_log_record_decode,
.release = &reftable_log_record_release_void,
.is_deletion = &reftable_log_record_is_deletion_void,
+ .equal = &reftable_log_record_equal_void,
+ .print = &reftable_log_record_print_void,
};
-struct reftable_record reftable_new_record(uint8_t typ)
-{
- struct reftable_record rec = { NULL };
- switch (typ) {
- case BLOCK_TYPE_REF: {
- struct reftable_ref_record *r =
- reftable_calloc(sizeof(struct reftable_ref_record));
- reftable_record_from_ref(&rec, r);
- return rec;
- }
-
- case BLOCK_TYPE_OBJ: {
- struct reftable_obj_record *r =
- reftable_calloc(sizeof(struct reftable_obj_record));
- reftable_record_from_obj(&rec, r);
- return rec;
- }
- case BLOCK_TYPE_LOG: {
- struct reftable_log_record *r =
- reftable_calloc(sizeof(struct reftable_log_record));
- reftable_record_from_log(&rec, r);
- return rec;
- }
- case BLOCK_TYPE_INDEX: {
- struct reftable_index_record empty = { .last_key =
- STRBUF_INIT };
- struct reftable_index_record *r =
- reftable_calloc(sizeof(struct reftable_index_record));
- *r = empty;
- reftable_record_from_index(&rec, r);
- return rec;
- }
- }
- abort();
- return rec;
-}
-
-/* clear out the record, yielding the reftable_record data that was
- * encapsulated. */
-static void *reftable_record_yield(struct reftable_record *rec)
-{
- void *p = rec->data;
- rec->data = NULL;
- return p;
-}
-
-void reftable_record_destroy(struct reftable_record *rec)
-{
- reftable_record_release(rec);
- reftable_free(reftable_record_yield(rec));
-}
-
static void reftable_index_record_key(const void *r, struct strbuf *dest)
{
const struct reftable_index_record *rec = r;
@@ -1042,6 +1078,21 @@ static int reftable_index_record_decode(void *rec, struct strbuf key,
return start.len - in.len;
}
+static int reftable_index_record_equal(const void *a, const void *b, int hash_size)
+{
+ struct reftable_index_record *ia = (struct reftable_index_record *) a;
+ struct reftable_index_record *ib = (struct reftable_index_record *) b;
+
+ return ia->offset == ib->offset && !strbuf_cmp(&ia->last_key, &ib->last_key);
+}
+
+static void reftable_index_record_print(const void *rec, int hash_size)
+{
+ const struct reftable_index_record *idx = rec;
+ /* TODO: escape null chars? */
+ printf("\"%s\" %" PRIu64 "\n", idx->last_key.buf, idx->offset);
+}
+
static struct reftable_record_vtable reftable_index_record_vtable = {
.key = &reftable_index_record_key,
.type = BLOCK_TYPE_INDEX,
@@ -1051,95 +1102,66 @@ static struct reftable_record_vtable reftable_index_record_vtable = {
.decode = &reftable_index_record_decode,
.release = &reftable_index_record_release,
.is_deletion = &not_a_deletion,
+ .equal = &reftable_index_record_equal,
+ .print = &reftable_index_record_print,
};
void reftable_record_key(struct reftable_record *rec, struct strbuf *dest)
{
- rec->ops->key(rec->data, dest);
+ reftable_record_vtable(rec)->key(reftable_record_data(rec), dest);
}
uint8_t reftable_record_type(struct reftable_record *rec)
{
- return rec->ops->type;
+ return rec->type;
}
int reftable_record_encode(struct reftable_record *rec, struct string_view dest,
int hash_size)
{
- return rec->ops->encode(rec->data, dest, hash_size);
+ return reftable_record_vtable(rec)->encode(reftable_record_data(rec),
+ dest, hash_size);
}
void reftable_record_copy_from(struct reftable_record *rec,
struct reftable_record *src, int hash_size)
{
- assert(src->ops->type == rec->ops->type);
+ assert(src->type == rec->type);
- rec->ops->copy_from(rec->data, src->data, hash_size);
+ reftable_record_vtable(rec)->copy_from(reftable_record_data(rec),
+ reftable_record_data(src),
+ hash_size);
}
uint8_t reftable_record_val_type(struct reftable_record *rec)
{
- return rec->ops->val_type(rec->data);
+ return reftable_record_vtable(rec)->val_type(reftable_record_data(rec));
}
int reftable_record_decode(struct reftable_record *rec, struct strbuf key,
uint8_t extra, struct string_view src, int hash_size)
{
- return rec->ops->decode(rec->data, key, extra, src, hash_size);
+ return reftable_record_vtable(rec)->decode(reftable_record_data(rec),
+ key, extra, src, hash_size);
}
void reftable_record_release(struct reftable_record *rec)
{
- rec->ops->release(rec->data);
+ reftable_record_vtable(rec)->release(reftable_record_data(rec));
}
int reftable_record_is_deletion(struct reftable_record *rec)
{
- return rec->ops->is_deletion(rec->data);
+ return reftable_record_vtable(rec)->is_deletion(
+ reftable_record_data(rec));
}
-void reftable_record_from_ref(struct reftable_record *rec,
- struct reftable_ref_record *ref_rec)
+int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, int hash_size)
{
- assert(!rec->ops);
- rec->data = ref_rec;
- rec->ops = &reftable_ref_record_vtable;
-}
-
-void reftable_record_from_obj(struct reftable_record *rec,
- struct reftable_obj_record *obj_rec)
-{
- assert(!rec->ops);
- rec->data = obj_rec;
- rec->ops = &reftable_obj_record_vtable;
-}
-
-void reftable_record_from_index(struct reftable_record *rec,
- struct reftable_index_record *index_rec)
-{
- assert(!rec->ops);
- rec->data = index_rec;
- rec->ops = &reftable_index_record_vtable;
-}
-
-void reftable_record_from_log(struct reftable_record *rec,
- struct reftable_log_record *log_rec)
-{
- assert(!rec->ops);
- rec->data = log_rec;
- rec->ops = &reftable_log_record_vtable;
-}
-
-struct reftable_ref_record *reftable_record_as_ref(struct reftable_record *rec)
-{
- assert(reftable_record_type(rec) == BLOCK_TYPE_REF);
- return rec->data;
-}
-
-struct reftable_log_record *reftable_record_as_log(struct reftable_record *rec)
-{
- assert(reftable_record_type(rec) == BLOCK_TYPE_LOG);
- return rec->data;
+ if (a->type != b->type)
+ return 0;
+ return reftable_record_vtable(a)->equal(
+ reftable_record_data(a), reftable_record_data(b), hash_size);
}
static int hash_equal(uint8_t *a, uint8_t *b, int hash_size)
@@ -1150,13 +1172,15 @@ static int hash_equal(uint8_t *a, uint8_t *b, int hash_size)
return a == b;
}
-int reftable_ref_record_equal(struct reftable_ref_record *a,
- struct reftable_ref_record *b, int hash_size)
+int reftable_ref_record_equal(const struct reftable_ref_record *a,
+ const struct reftable_ref_record *b, int hash_size)
{
assert(hash_size > 0);
- if (!(0 == strcmp(a->refname, b->refname) &&
- a->update_index == b->update_index &&
- a->value_type == b->value_type))
+ if (!null_streq(a->refname, b->refname))
+ return 0;
+
+ if (a->update_index != b->update_index ||
+ a->value_type != b->value_type)
return 0;
switch (a->value_type) {
@@ -1210,3 +1234,81 @@ void string_view_consume(struct string_view *s, int n)
s->buf += n;
s->len -= n;
}
+
+static void *reftable_record_data(struct reftable_record *rec)
+{
+ switch (rec->type) {
+ case BLOCK_TYPE_REF:
+ return &rec->u.ref;
+ case BLOCK_TYPE_LOG:
+ return &rec->u.log;
+ case BLOCK_TYPE_INDEX:
+ return &rec->u.idx;
+ case BLOCK_TYPE_OBJ:
+ return &rec->u.obj;
+ }
+ abort();
+}
+
+static struct reftable_record_vtable *
+reftable_record_vtable(struct reftable_record *rec)
+{
+ switch (rec->type) {
+ case BLOCK_TYPE_REF:
+ return &reftable_ref_record_vtable;
+ case BLOCK_TYPE_LOG:
+ return &reftable_log_record_vtable;
+ case BLOCK_TYPE_INDEX:
+ return &reftable_index_record_vtable;
+ case BLOCK_TYPE_OBJ:
+ return &reftable_obj_record_vtable;
+ }
+ abort();
+}
+
+struct reftable_record reftable_new_record(uint8_t typ)
+{
+ struct reftable_record clean = {
+ .type = typ,
+ };
+
+ /* the following is involved, but the naive solution (just return
+ * `clean` as is, except for BLOCK_TYPE_INDEX), returns a garbage
+ * clean.u.obj.offsets pointer on Windows VS CI. Go figure.
+ */
+ switch (typ) {
+ case BLOCK_TYPE_OBJ:
+ {
+ struct reftable_obj_record obj = { 0 };
+ clean.u.obj = obj;
+ break;
+ }
+ case BLOCK_TYPE_INDEX:
+ {
+ struct reftable_index_record idx = {
+ .last_key = STRBUF_INIT,
+ };
+ clean.u.idx = idx;
+ break;
+ }
+ case BLOCK_TYPE_REF:
+ {
+ struct reftable_ref_record ref = { 0 };
+ clean.u.ref = ref;
+ break;
+ }
+ case BLOCK_TYPE_LOG:
+ {
+ struct reftable_log_record log = { 0 };
+ clean.u.log = log;
+ break;
+ }
+ }
+ return clean;
+}
+
+void reftable_record_print(struct reftable_record *rec, int hash_size)
+{
+ printf("'%c': ", rec->type);
+ reftable_record_vtable(rec)->print(reftable_record_data(rec), hash_size);
+}
diff --git a/reftable/record.h b/reftable/record.h
index 498e8c5..fd80cd4 100644
--- a/reftable/record.h
+++ b/reftable/record.h
@@ -58,18 +58,18 @@ struct reftable_record_vtable {
/* is this a tombstone? */
int (*is_deletion)(const void *rec);
-};
-/* record is a generic wrapper for different types of records. */
-struct reftable_record {
- void *data;
- struct reftable_record_vtable *ops;
+ /* Are two records equal? This assumes they have the same type. Returns 0 for non-equal. */
+ int (*equal)(const void *a, const void *b, int hash_size);
+
+ /* Print on stdout, for debugging. */
+ void (*print)(const void *rec, int hash_size);
};
/* returns true for recognized block types. Block start with the block type. */
int reftable_is_block_type(uint8_t typ);
-/* creates a malloced record of the given type. Dispose with record_destroy */
+/* return an initialized record for the given type */
struct reftable_record reftable_new_record(uint8_t typ);
/* Encode `key` into `dest`. Sets `is_restart` to indicate a restart. Returns
@@ -97,8 +97,25 @@ struct reftable_obj_record {
int offset_len;
};
-/* see struct record_vtable */
+/* record is a generic wrapper for different types of records. It is normally
+ * created on the stack, or embedded within another struct. If the type is
+ * known, a fresh instance can be initialized explicitly. Otherwise, use
+ * reftable_new_record() to initialize generically (as the index_record is not
+ * valid as 0-initialized structure)
+ */
+struct reftable_record {
+ uint8_t type;
+ union {
+ struct reftable_ref_record ref;
+ struct reftable_log_record log;
+ struct reftable_obj_record obj;
+ struct reftable_index_record idx;
+ } u;
+};
+/* see struct record_vtable */
+int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, int hash_size);
+void reftable_record_print(struct reftable_record *rec, int hash_size);
void reftable_record_key(struct reftable_record *rec, struct strbuf *dest);
uint8_t reftable_record_type(struct reftable_record *rec);
void reftable_record_copy_from(struct reftable_record *rec,
@@ -111,25 +128,9 @@ int reftable_record_decode(struct reftable_record *rec, struct strbuf key,
int hash_size);
int reftable_record_is_deletion(struct reftable_record *rec);
-/* zeroes out the embedded record */
+/* frees and zeroes out the embedded record */
void reftable_record_release(struct reftable_record *rec);
-/* clear and deallocate embedded record, and zero `rec`. */
-void reftable_record_destroy(struct reftable_record *rec);
-
-/* initialize generic records from concrete records. The generic record should
- * be zeroed out. */
-void reftable_record_from_obj(struct reftable_record *rec,
- struct reftable_obj_record *objrec);
-void reftable_record_from_index(struct reftable_record *rec,
- struct reftable_index_record *idxrec);
-void reftable_record_from_ref(struct reftable_record *rec,
- struct reftable_ref_record *refrec);
-void reftable_record_from_log(struct reftable_record *rec,
- struct reftable_log_record *logrec);
-struct reftable_ref_record *reftable_record_as_ref(struct reftable_record *ref);
-struct reftable_log_record *reftable_record_as_log(struct reftable_record *ref);
-
/* for qsort. */
int reftable_ref_record_compare_name(const void *a, const void *b);
diff --git a/reftable/record_test.c b/reftable/record_test.c
index f4ad7ca..70ae78f 100644
--- a/reftable/record_test.c
+++ b/reftable/record_test.c
@@ -16,24 +16,20 @@
static void test_copy(struct reftable_record *rec)
{
- struct reftable_record copy =
- reftable_new_record(reftable_record_type(rec));
+ struct reftable_record copy = { 0 };
+ uint8_t typ;
+
+ typ = reftable_record_type(rec);
+ copy = reftable_new_record(typ);
reftable_record_copy_from(&copy, rec, GIT_SHA1_RAWSZ);
/* do it twice to catch memory leaks */
reftable_record_copy_from(&copy, rec, GIT_SHA1_RAWSZ);
- switch (reftable_record_type(&copy)) {
- case BLOCK_TYPE_REF:
- EXPECT(reftable_ref_record_equal(reftable_record_as_ref(&copy),
- reftable_record_as_ref(rec),
- GIT_SHA1_RAWSZ));
- break;
- case BLOCK_TYPE_LOG:
- EXPECT(reftable_log_record_equal(reftable_record_as_log(&copy),
- reftable_record_as_log(rec),
- GIT_SHA1_RAWSZ));
- break;
- }
- reftable_record_destroy(&copy);
+ EXPECT(reftable_record_equal(rec, &copy, GIT_SHA1_RAWSZ));
+
+ puts("testing print coverage:\n");
+ reftable_record_print(&copy, GIT_SHA1_RAWSZ);
+
+ reftable_record_release(&copy);
}
static void test_varint_roundtrip(void)
@@ -106,61 +102,58 @@ static void test_reftable_ref_record_roundtrip(void)
int i = 0;
for (i = REFTABLE_REF_DELETION; i < REFTABLE_NR_REF_VALUETYPES; i++) {
- struct reftable_ref_record in = { NULL };
- struct reftable_ref_record out = { NULL };
- struct reftable_record rec_out = { NULL };
+ struct reftable_record in = {
+ .type = BLOCK_TYPE_REF,
+ };
+ struct reftable_record out = { .type = BLOCK_TYPE_REF };
struct strbuf key = STRBUF_INIT;
- struct reftable_record rec = { NULL };
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
.buf = buffer,
.len = sizeof(buffer),
};
-
int n, m;
- in.value_type = i;
+ in.u.ref.value_type = i;
switch (i) {
case REFTABLE_REF_DELETION:
break;
case REFTABLE_REF_VAL1:
- in.value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
- set_hash(in.value.val1, 1);
+ in.u.ref.value.val1 = reftable_malloc(GIT_SHA1_RAWSZ);
+ set_hash(in.u.ref.value.val1, 1);
break;
case REFTABLE_REF_VAL2:
- in.value.val2.value = reftable_malloc(GIT_SHA1_RAWSZ);
- set_hash(in.value.val2.value, 1);
- in.value.val2.target_value =
+ in.u.ref.value.val2.value =
reftable_malloc(GIT_SHA1_RAWSZ);
- set_hash(in.value.val2.target_value, 2);
+ set_hash(in.u.ref.value.val2.value, 1);
+ in.u.ref.value.val2.target_value =
+ reftable_malloc(GIT_SHA1_RAWSZ);
+ set_hash(in.u.ref.value.val2.target_value, 2);
break;
case REFTABLE_REF_SYMREF:
- in.value.symref = xstrdup("target");
+ in.u.ref.value.symref = xstrdup("target");
break;
}
- in.refname = xstrdup("refs/heads/master");
+ in.u.ref.refname = xstrdup("refs/heads/master");
- reftable_record_from_ref(&rec, &in);
- test_copy(&rec);
+ test_copy(&in);
- EXPECT(reftable_record_val_type(&rec) == i);
+ EXPECT(reftable_record_val_type(&in) == i);
- reftable_record_key(&rec, &key);
- n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ);
+ reftable_record_key(&in, &key);
+ n = reftable_record_encode(&in, dest, GIT_SHA1_RAWSZ);
EXPECT(n > 0);
/* decode into a non-zero reftable_record to test for leaks. */
-
- reftable_record_from_ref(&rec_out, &out);
- m = reftable_record_decode(&rec_out, key, i, dest,
- GIT_SHA1_RAWSZ);
+ m = reftable_record_decode(&out, key, i, dest, GIT_SHA1_RAWSZ);
EXPECT(n == m);
- EXPECT(reftable_ref_record_equal(&in, &out, GIT_SHA1_RAWSZ));
- reftable_record_release(&rec_out);
+ EXPECT(reftable_ref_record_equal(&in.u.ref, &out.u.ref,
+ GIT_SHA1_RAWSZ));
+ reftable_record_release(&in);
strbuf_release(&key);
- reftable_ref_record_release(&in);
+ reftable_record_release(&out);
}
}
@@ -187,7 +180,8 @@ static void test_reftable_log_record_equal(void)
static void test_reftable_log_record_roundtrip(void)
{
int i;
- struct reftable_log_record in[2] = {
+
+ struct reftable_log_record in[] = {
{
.refname = xstrdup("refs/heads/master"),
.update_index = 42,
@@ -208,12 +202,26 @@ static void test_reftable_log_record_roundtrip(void)
.refname = xstrdup("refs/heads/master"),
.update_index = 22,
.value_type = REFTABLE_LOG_DELETION,
+ },
+ {
+ .refname = xstrdup("branch"),
+ .update_index = 33,
+ .value_type = REFTABLE_LOG_UPDATE,
+ .value = {
+ .update = {
+ .old_hash = reftable_malloc(GIT_SHA1_RAWSZ),
+ .new_hash = reftable_malloc(GIT_SHA1_RAWSZ),
+ /* rest of fields left empty. */
+ },
+ },
}
};
set_test_hash(in[0].value.update.new_hash, 1);
set_test_hash(in[0].value.update.old_hash, 2);
+ set_test_hash(in[2].value.update.new_hash, 3);
+ set_test_hash(in[2].value.update.old_hash, 4);
for (i = 0; i < ARRAY_SIZE(in); i++) {
- struct reftable_record rec = { NULL };
+ struct reftable_record rec = { .type = BLOCK_TYPE_LOG };
struct strbuf key = STRBUF_INIT;
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
@@ -221,23 +229,25 @@ static void test_reftable_log_record_roundtrip(void)
.len = sizeof(buffer),
};
/* populate out, to check for leaks. */
- struct reftable_log_record out = {
- .refname = xstrdup("old name"),
- .value_type = REFTABLE_LOG_UPDATE,
- .value = {
- .update = {
- .new_hash = reftable_calloc(GIT_SHA1_RAWSZ),
- .old_hash = reftable_calloc(GIT_SHA1_RAWSZ),
- .name = xstrdup("old name"),
- .email = xstrdup("old@email"),
- .message = xstrdup("old message"),
+ struct reftable_record out = {
+ .type = BLOCK_TYPE_LOG,
+ .u.log = {
+ .refname = xstrdup("old name"),
+ .value_type = REFTABLE_LOG_UPDATE,
+ .value = {
+ .update = {
+ .new_hash = reftable_calloc(GIT_SHA1_RAWSZ),
+ .old_hash = reftable_calloc(GIT_SHA1_RAWSZ),
+ .name = xstrdup("old name"),
+ .email = xstrdup("old@email"),
+ .message = xstrdup("old message"),
+ },
},
},
};
- struct reftable_record rec_out = { NULL };
int n, m, valtype;
- reftable_record_from_log(&rec, &in[i]);
+ rec.u.log = in[i];
test_copy(&rec);
@@ -245,16 +255,16 @@ static void test_reftable_log_record_roundtrip(void)
n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ);
EXPECT(n >= 0);
- reftable_record_from_log(&rec_out, &out);
valtype = reftable_record_val_type(&rec);
- m = reftable_record_decode(&rec_out, key, valtype, dest,
+ m = reftable_record_decode(&out, key, valtype, dest,
GIT_SHA1_RAWSZ);
EXPECT(n == m);
- EXPECT(reftable_log_record_equal(&in[i], &out, GIT_SHA1_RAWSZ));
+ EXPECT(reftable_log_record_equal(&in[i], &out.u.log,
+ GIT_SHA1_RAWSZ));
reftable_log_record_release(&in[i]);
strbuf_release(&key);
- reftable_record_release(&rec_out);
+ reftable_record_release(&out);
}
}
@@ -322,47 +332,45 @@ static void test_reftable_obj_record_roundtrip(void)
} };
int i = 0;
for (i = 0; i < ARRAY_SIZE(recs); i++) {
- struct reftable_obj_record in = recs[i];
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
.buf = buffer,
.len = sizeof(buffer),
};
- struct reftable_record rec = { NULL };
+ struct reftable_record in = {
+ .type = BLOCK_TYPE_OBJ,
+ .u = {
+ .obj = recs[i],
+ },
+ };
struct strbuf key = STRBUF_INIT;
- struct reftable_obj_record out = { NULL };
- struct reftable_record rec_out = { NULL };
+ struct reftable_record out = { .type = BLOCK_TYPE_OBJ };
int n, m;
uint8_t extra;
- reftable_record_from_obj(&rec, &in);
- test_copy(&rec);
- reftable_record_key(&rec, &key);
- n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ);
+ test_copy(&in);
+ reftable_record_key(&in, &key);
+ n = reftable_record_encode(&in, dest, GIT_SHA1_RAWSZ);
EXPECT(n > 0);
- extra = reftable_record_val_type(&rec);
- reftable_record_from_obj(&rec_out, &out);
- m = reftable_record_decode(&rec_out, key, extra, dest,
+ extra = reftable_record_val_type(&in);
+ m = reftable_record_decode(&out, key, extra, dest,
GIT_SHA1_RAWSZ);
EXPECT(n == m);
- EXPECT(in.hash_prefix_len == out.hash_prefix_len);
- EXPECT(in.offset_len == out.offset_len);
-
- EXPECT(!memcmp(in.hash_prefix, out.hash_prefix,
- in.hash_prefix_len));
- EXPECT(0 == memcmp(in.offsets, out.offsets,
- sizeof(uint64_t) * in.offset_len));
+ EXPECT(reftable_record_equal(&in, &out, GIT_SHA1_RAWSZ));
strbuf_release(&key);
- reftable_record_release(&rec_out);
+ reftable_record_release(&out);
}
}
static void test_reftable_index_record_roundtrip(void)
{
- struct reftable_index_record in = {
- .offset = 42,
- .last_key = STRBUF_INIT,
+ struct reftable_record in = {
+ .type = BLOCK_TYPE_INDEX,
+ .u.idx = {
+ .offset = 42,
+ .last_key = STRBUF_INIT,
+ },
};
uint8_t buffer[1024] = { 0 };
struct string_view dest = {
@@ -370,31 +378,30 @@ static void test_reftable_index_record_roundtrip(void)
.len = sizeof(buffer),
};
struct strbuf key = STRBUF_INIT;
- struct reftable_record rec = { NULL };
- struct reftable_index_record out = { .last_key = STRBUF_INIT };
- struct reftable_record out_rec = { NULL };
+ struct reftable_record out = {
+ .type = BLOCK_TYPE_INDEX,
+ .u.idx = { .last_key = STRBUF_INIT },
+ };
int n, m;
uint8_t extra;
- strbuf_addstr(&in.last_key, "refs/heads/master");
- reftable_record_from_index(&rec, &in);
- reftable_record_key(&rec, &key);
- test_copy(&rec);
+ strbuf_addstr(&in.u.idx.last_key, "refs/heads/master");
+ reftable_record_key(&in, &key);
+ test_copy(&in);
- EXPECT(0 == strbuf_cmp(&key, &in.last_key));
- n = reftable_record_encode(&rec, dest, GIT_SHA1_RAWSZ);
+ EXPECT(0 == strbuf_cmp(&key, &in.u.idx.last_key));
+ n = reftable_record_encode(&in, dest, GIT_SHA1_RAWSZ);
EXPECT(n > 0);
- extra = reftable_record_val_type(&rec);
- reftable_record_from_index(&out_rec, &out);
- m = reftable_record_decode(&out_rec, key, extra, dest, GIT_SHA1_RAWSZ);
+ extra = reftable_record_val_type(&in);
+ m = reftable_record_decode(&out, key, extra, dest, GIT_SHA1_RAWSZ);
EXPECT(m == n);
- EXPECT(in.offset == out.offset);
+ EXPECT(reftable_record_equal(&in, &out, GIT_SHA1_RAWSZ));
- reftable_record_release(&out_rec);
+ reftable_record_release(&out);
strbuf_release(&key);
- strbuf_release(&in.last_key);
+ strbuf_release(&in.u.idx.last_key);
}
int record_test_main(int argc, const char *argv[])
diff --git a/reftable/reftable-record.h b/reftable/reftable-record.h
index 5370d22..67104f8 100644
--- a/reftable/reftable-record.h
+++ b/reftable/reftable-record.h
@@ -49,25 +49,25 @@ struct reftable_ref_record {
/* Returns the first hash, or NULL if `rec` is not of type
* REFTABLE_REF_VAL1 or REFTABLE_REF_VAL2. */
-uint8_t *reftable_ref_record_val1(struct reftable_ref_record *rec);
+uint8_t *reftable_ref_record_val1(const struct reftable_ref_record *rec);
/* Returns the second hash, or NULL if `rec` is not of type
* REFTABLE_REF_VAL2. */
-uint8_t *reftable_ref_record_val2(struct reftable_ref_record *rec);
+uint8_t *reftable_ref_record_val2(const struct reftable_ref_record *rec);
/* returns whether 'ref' represents a deletion */
int reftable_ref_record_is_deletion(const struct reftable_ref_record *ref);
/* prints a reftable_ref_record onto stdout. Useful for debugging. */
-void reftable_ref_record_print(struct reftable_ref_record *ref,
+void reftable_ref_record_print(const struct reftable_ref_record *ref,
uint32_t hash_id);
/* frees and nulls all pointer values inside `ref`. */
void reftable_ref_record_release(struct reftable_ref_record *ref);
/* returns whether two reftable_ref_records are the same. Useful for testing. */
-int reftable_ref_record_equal(struct reftable_ref_record *a,
- struct reftable_ref_record *b, int hash_size);
+int reftable_ref_record_equal(const struct reftable_ref_record *a,
+ const struct reftable_ref_record *b, int hash_size);
/* reftable_log_record holds a reflog entry */
struct reftable_log_record {
@@ -104,8 +104,8 @@ int reftable_log_record_is_deletion(const struct reftable_log_record *log);
void reftable_log_record_release(struct reftable_log_record *log);
/* returns whether two records are equal. Useful for testing. */
-int reftable_log_record_equal(struct reftable_log_record *a,
- struct reftable_log_record *b, int hash_size);
+int reftable_log_record_equal(const struct reftable_log_record *a,
+ const struct reftable_log_record *b, int hash_size);
/* dumps a reftable_log_record on stdout, for debugging/testing. */
void reftable_log_record_print(struct reftable_log_record *log,
diff --git a/reftable/reftable-writer.h b/reftable/reftable-writer.h
index a560dc1..db8de19 100644
--- a/reftable/reftable-writer.h
+++ b/reftable/reftable-writer.h
@@ -143,7 +143,7 @@ int reftable_writer_close(struct reftable_writer *w);
This struct becomes invalid when the writer is freed.
*/
-const struct reftable_stats *writer_stats(struct reftable_writer *w);
+const struct reftable_stats *reftable_writer_stats(struct reftable_writer *w);
/* reftable_writer_free deallocates memory for the writer */
void reftable_writer_free(struct reftable_writer *w);
diff --git a/reftable/reftable.c b/reftable/reftable.c
deleted file mode 100644
index 0e4607a..0000000
--- a/reftable/reftable.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
-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 "basics.h"
-#include "record.h"
-#include "generic.h"
-#include "reftable-iterator.h"
-#include "reftable-generic.h"
-
-int reftable_table_seek_ref(struct reftable_table *tab,
- struct reftable_iterator *it, const char *name)
-{
- struct reftable_ref_record ref = {
- .refname = (char *)name,
- };
- struct reftable_record rec = { NULL };
- reftable_record_from_ref(&rec, &ref);
- return tab->ops->seek_record(tab->table_arg, it, &rec);
-}
-
-int reftable_table_read_ref(struct reftable_table *tab, const char *name,
- struct reftable_ref_record *ref)
-{
- struct reftable_iterator it = { NULL };
- int err = reftable_table_seek_ref(tab, &it, name);
- if (err)
- goto done;
-
- err = reftable_iterator_next_ref(&it, ref);
- if (err)
- goto done;
-
- if (strcmp(ref->refname, name) ||
- reftable_ref_record_is_deletion(ref)) {
- reftable_ref_record_release(ref);
- err = 1;
- goto done;
- }
-
-done:
- reftable_iterator_destroy(&it);
- return err;
-}
-
-uint64_t reftable_table_max_update_index(struct reftable_table *tab)
-{
- return tab->ops->max_update_index(tab->table_arg);
-}
-
-uint64_t reftable_table_min_update_index(struct reftable_table *tab)
-{
- return tab->ops->min_update_index(tab->table_arg);
-}
-
-uint32_t reftable_table_hash_id(struct reftable_table *tab)
-{
- return tab->ops->hash_id(tab->table_arg);
-}
-
-void reftable_iterator_destroy(struct reftable_iterator *it)
-{
- if (!it->ops) {
- return;
- }
- it->ops->close(it->iter_arg);
- it->ops = NULL;
- FREE_AND_NULL(it->iter_arg);
-}
-
-int reftable_iterator_next_ref(struct reftable_iterator *it,
- struct reftable_ref_record *ref)
-{
- struct reftable_record rec = { NULL };
- reftable_record_from_ref(&rec, ref);
- return iterator_next(it, &rec);
-}
-
-int reftable_iterator_next_log(struct reftable_iterator *it,
- struct reftable_log_record *log)
-{
- struct reftable_record rec = { NULL };
- reftable_record_from_log(&rec, log);
- return iterator_next(it, &rec);
-}
-
-int iterator_next(struct reftable_iterator *it, struct reftable_record *rec)
-{
- return it->ops->next(it->iter_arg, rec);
-}
-
-static int empty_iterator_next(void *arg, struct reftable_record *rec)
-{
- return 1;
-}
-
-static void empty_iterator_close(void *arg)
-{
-}
-
-static struct reftable_iterator_vtable empty_vtable = {
- .next = &empty_iterator_next,
- .close = &empty_iterator_close,
-};
-
-void iterator_set_empty(struct reftable_iterator *it)
-{
- assert(!it->ops);
- it->iter_arg = NULL;
- it->ops = &empty_vtable;
-}
diff --git a/reftable/stack.c b/reftable/stack.c
index 56bf5f2..ddbdf1b 100644
--- a/reftable/stack.c
+++ b/reftable/stack.c
@@ -889,7 +889,7 @@ static int stack_compact_range(struct reftable_stack *st, int first, int last,
struct strbuf new_table_path = STRBUF_INIT;
int err = 0;
int have_lock = 0;
- int lock_file_fd = 0;
+ int lock_file_fd = -1;
int compact_count = last - first + 1;
char **listp = NULL;
char **delete_on_success =
@@ -923,7 +923,7 @@ static int stack_compact_range(struct reftable_stack *st, int first, int last,
}
/* Don't want to write to the lock for now. */
close(lock_file_fd);
- lock_file_fd = 0;
+ lock_file_fd = -1;
have_lock = 1;
err = stack_uptodate(st);
@@ -1031,7 +1031,7 @@ static int stack_compact_range(struct reftable_stack *st, int first, int last,
goto done;
}
err = close(lock_file_fd);
- lock_file_fd = 0;
+ lock_file_fd = -1;
if (err < 0) {
err = REFTABLE_IO_ERROR;
unlink(new_table_path.buf);
@@ -1068,9 +1068,9 @@ done:
listp++;
}
free_names(subtable_locks);
- if (lock_file_fd > 0) {
+ if (lock_file_fd >= 0) {
close(lock_file_fd);
- lock_file_fd = 0;
+ lock_file_fd = -1;
}
if (have_lock) {
unlink(lock_file_name.buf);
diff --git a/reftable/stack_test.c b/reftable/stack_test.c
index f4c743d..d0b7175 100644
--- a/reftable/stack_test.c
+++ b/reftable/stack_test.c
@@ -35,7 +35,7 @@ static int count_dir_entries(const char *dirname)
DIR *dir = opendir(dirname);
int len = 0;
struct dirent *d;
- if (dir == NULL)
+ if (!dir)
return 0;
while ((d = readdir(dir))) {
@@ -90,7 +90,7 @@ static void test_read_file(void)
EXPECT(0 == strcmp(want[i], names[i]));
}
free_names(names);
- remove(fn);
+ (void) remove(fn);
}
static void test_parse_names(void)
@@ -839,6 +839,7 @@ static void test_reftable_stack_auto_compaction(void)
EXPECT_ERR(err);
err = reftable_stack_auto_compact(st);
+ EXPECT_ERR(err);
EXPECT(i < 3 || st->merged->stack_len < 2 * fastlog2(i));
}
diff --git a/reftable/system.h b/reftable/system.h
index 4907306..18f9207 100644
--- a/reftable/system.h
+++ b/reftable/system.h
@@ -16,17 +16,6 @@ https://developers.google.com/open-source/licenses/bsd
#include "hash.h" /* hash ID, sizes.*/
#include "dir.h" /* remove_dir_recursively, for tests.*/
-#include <zlib.h>
-
-#ifdef NO_UNCOMPRESS2
-/*
- * This is uncompress2, which is only available in zlib >= 1.2.9
- * (released as of early 2017)
- */
-int uncompress2(Bytef *dest, uLongf *destLen, const Bytef *source,
- uLong *sourceLen);
-#endif
-
int hash_size(uint32_t id);
#endif
diff --git a/reftable/tree.c b/reftable/tree.c
index 82db799..b8899e0 100644
--- a/reftable/tree.c
+++ b/reftable/tree.c
@@ -16,7 +16,7 @@ struct tree_node *tree_search(void *key, struct tree_node **rootp,
int insert)
{
int res;
- if (*rootp == NULL) {
+ if (!*rootp) {
if (!insert) {
return NULL;
} else {
@@ -50,7 +50,7 @@ void infix_walk(struct tree_node *t, void (*action)(void *arg, void *key),
void tree_free(struct tree_node *t)
{
- if (t == NULL) {
+ if (!t) {
return;
}
if (t->left) {
diff --git a/reftable/writer.c b/reftable/writer.c
index 35c8649..2e322a5 100644
--- a/reftable/writer.c
+++ b/reftable/writer.c
@@ -150,6 +150,8 @@ void reftable_writer_set_limits(struct reftable_writer *w, uint64_t min,
void reftable_writer_free(struct reftable_writer *w)
{
+ if (!w)
+ return;
reftable_free(w->block);
reftable_free(w);
}
@@ -181,7 +183,7 @@ static void writer_index_hash(struct reftable_writer *w, struct strbuf *hash)
struct tree_node *node = tree_search(&want, &w->obj_index_tree,
&obj_index_tree_node_compare, 0);
struct obj_index_tree_node *key = NULL;
- if (node == NULL) {
+ if (!node) {
struct obj_index_tree_node empty = OBJ_INDEX_TREE_NODE_INIT;
key = reftable_malloc(sizeof(struct obj_index_tree_node));
*key = empty;
@@ -220,7 +222,7 @@ static int writer_add_record(struct reftable_writer *w,
strbuf_reset(&w->last_key);
strbuf_addbuf(&w->last_key, &key);
- if (w->block_writer == NULL) {
+ if (!w->block_writer) {
writer_reinit_block_writer(w, reftable_record_type(rec));
}
@@ -238,14 +240,13 @@ static int writer_add_record(struct reftable_writer *w,
writer_reinit_block_writer(w, reftable_record_type(rec));
err = block_writer_add(w->block_writer, rec);
- if (err < 0) {
+ if (err == -1) {
/* we are writing into memory, so an error can only mean it
* doesn't fit. */
err = REFTABLE_ENTRY_TOO_BIG_ERROR;
goto done;
}
- err = 0;
done:
strbuf_release(&key);
return err;
@@ -254,18 +255,21 @@ done:
int reftable_writer_add_ref(struct reftable_writer *w,
struct reftable_ref_record *ref)
{
- struct reftable_record rec = { NULL };
- struct reftable_ref_record copy = *ref;
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_REF,
+ .u = {
+ .ref = *ref
+ },
+ };
int err = 0;
- if (ref->refname == NULL)
+ if (!ref->refname)
return REFTABLE_API_ERROR;
if (ref->update_index < w->min_update_index ||
ref->update_index > w->max_update_index)
return REFTABLE_API_ERROR;
- reftable_record_from_ref(&rec, &copy);
- copy.update_index -= w->min_update_index;
+ rec.u.ref.update_index -= w->min_update_index;
err = writer_add_record(w, &rec);
if (err < 0)
@@ -304,7 +308,12 @@ int reftable_writer_add_refs(struct reftable_writer *w,
static int reftable_writer_add_log_verbatim(struct reftable_writer *w,
struct reftable_log_record *log)
{
- struct reftable_record rec = { NULL };
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_LOG,
+ .u = {
+ .log = *log,
+ },
+ };
if (w->block_writer &&
block_writer_type(w->block_writer) == BLOCK_TYPE_REF) {
int err = writer_finish_public_section(w);
@@ -314,8 +323,6 @@ static int reftable_writer_add_log_verbatim(struct reftable_writer *w,
w->next -= w->pending_padding;
w->pending_padding = 0;
-
- reftable_record_from_log(&rec, log);
return writer_add_record(w, &rec);
}
@@ -329,7 +336,7 @@ int reftable_writer_add_log(struct reftable_writer *w,
if (log->value_type == REFTABLE_LOG_DELETION)
return reftable_writer_add_log_verbatim(w, log);
- if (log->refname == NULL)
+ if (!log->refname)
return REFTABLE_API_ERROR;
input_log_message = log->value.update.message;
@@ -396,8 +403,12 @@ static int writer_finish_section(struct reftable_writer *w)
w->index_len = 0;
w->index_cap = 0;
for (i = 0; i < idx_len; i++) {
- struct reftable_record rec = { NULL };
- reftable_record_from_index(&rec, idx + i);
+ struct reftable_record rec = {
+ .type = BLOCK_TYPE_INDEX,
+ .u = {
+ .idx = idx[i],
+ },
+ };
if (block_writer_add(w->block_writer, &rec) == 0) {
continue;
}
@@ -465,17 +476,17 @@ static void write_object_record(void *void_arg, void *key)
{
struct write_record_arg *arg = void_arg;
struct obj_index_tree_node *entry = key;
- struct reftable_obj_record obj_rec = {
- .hash_prefix = (uint8_t *)entry->hash.buf,
- .hash_prefix_len = arg->w->stats.object_id_len,
- .offsets = entry->offsets,
- .offset_len = entry->offset_len,
- };
- struct reftable_record rec = { NULL };
+ struct reftable_record
+ rec = { .type = BLOCK_TYPE_OBJ,
+ .u.obj = {
+ .hash_prefix = (uint8_t *)entry->hash.buf,
+ .hash_prefix_len = arg->w->stats.object_id_len,
+ .offsets = entry->offsets,
+ .offset_len = entry->offset_len,
+ } };
if (arg->err < 0)
goto done;
- reftable_record_from_obj(&rec, &obj_rec);
arg->err = block_writer_add(arg->w->block_writer, &rec);
if (arg->err == 0)
goto done;
@@ -488,7 +499,8 @@ static void write_object_record(void *void_arg, void *key)
arg->err = block_writer_add(arg->w->block_writer, &rec);
if (arg->err == 0)
goto done;
- obj_rec.offset_len = 0;
+
+ rec.u.obj.offset_len = 0;
arg->err = block_writer_add(arg->w->block_writer, &rec);
/* Should be able to write into a fresh block. */
@@ -509,7 +521,9 @@ static void object_record_free(void *void_arg, void *key)
static int writer_dump_object_index(struct reftable_writer *w)
{
struct write_record_arg closure = { .w = w };
- struct common_prefix_arg common = { NULL };
+ struct common_prefix_arg common = {
+ .max = 1, /* obj_id_len should be >= 2. */
+ };
if (w->obj_index_tree) {
infix_walk(w->obj_index_tree, &update_common, &common);
}
@@ -531,7 +545,7 @@ static int writer_finish_public_section(struct reftable_writer *w)
uint8_t typ = 0;
int err = 0;
- if (w->block_writer == NULL)
+ if (!w->block_writer)
return 0;
typ = block_writer_type(w->block_writer);
@@ -680,14 +694,14 @@ static int writer_flush_nonempty_block(struct reftable_writer *w)
static int writer_flush_block(struct reftable_writer *w)
{
- if (w->block_writer == NULL)
+ if (!w->block_writer)
return 0;
if (w->block_writer->entries == 0)
return 0;
return writer_flush_nonempty_block(w);
}
-const struct reftable_stats *writer_stats(struct reftable_writer *w)
+const struct reftable_stats *reftable_writer_stats(struct reftable_writer *w)
{
return &w->stats;
}
generated by cgit v0.10.2-6-g49f6 at 2024-04-27 15:35:52 (GMT)