#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;
(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)
.equal = &reftable_log_record_equal_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;
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));
}
int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, int hash_size)
{
- if (a->ops != b->ops)
+ if (a->type != b->type)
return 0;
- return a->ops->equal(a->data, b->data, hash_size);
-}
-
-void reftable_record_from_ref(struct reftable_record *rec,
- struct reftable_ref_record *ref_rec)
-{
- 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;
+ 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)
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;
+}
projects / thirdparty / git.git / blobdiff