diff options
Diffstat (limited to 'reftable/record.c')
| -rw-r--r-- | reftable/record.c | 413 |
1 files changed, 256 insertions, 157 deletions
diff --git a/reftable/record.c b/reftable/record.c index 6b5a075b92..8919df8a4d 100644 --- a/reftable/record.c +++ b/reftable/record.c @@ -21,47 +21,49 @@ static void *reftable_record_data(struct reftable_record *rec); int get_var_int(uint64_t *dest, struct string_view *in) { - int ptr = 0; + const unsigned char *buf = in->buf; + unsigned char c; uint64_t val; - if (in->len == 0) + if (!in->len) return -1; - val = in->buf[ptr] & 0x7f; - - while (in->buf[ptr] & 0x80) { - ptr++; - if (ptr > in->len) { + c = *buf++; + val = c & 0x7f; + + while (c & 0x80) { + /* + * We use a micro-optimization here: whenever we see that the + * 0x80 bit is set, we know that the remainder of the value + * cannot be 0. The zero-values thus doesn't need to be encoded + * at all, which is why we subtract 1 when encoding and add 1 + * when decoding. + * + * This allows us to save a byte in some edge cases. + */ + val += 1; + if (!val || (val & (uint64_t)(~0ULL << (64 - 7)))) + return -1; /* overflow */ + if (buf >= in->buf + in->len) return -1; - } - val = (val + 1) << 7 | (uint64_t)(in->buf[ptr] & 0x7f); + c = *buf++; + val = (val << 7) + (c & 0x7f); } *dest = val; - return ptr + 1; + return buf - in->buf; } -int put_var_int(struct string_view *dest, uint64_t val) +int put_var_int(struct string_view *dest, uint64_t value) { - uint8_t buf[10] = { 0 }; - int i = 9; - int n = 0; - buf[i] = (uint8_t)(val & 0x7f); - i--; - while (1) { - val >>= 7; - if (!val) { - break; - } - val--; - buf[i] = 0x80 | (uint8_t)(val & 0x7f); - i--; - } - - n = sizeof(buf) - i - 1; - if (dest->len < n) + unsigned char varint[10]; + unsigned pos = sizeof(varint) - 1; + varint[pos] = value & 0x7f; + while (value >>= 7) + varint[--pos] = 0x80 | (--value & 0x7f); + if (dest->len < sizeof(varint) - pos) return -1; - memcpy(dest->buf, &buf[i + 1], n); - return n; + memcpy(dest->buf, varint + pos, sizeof(varint) - pos); + return sizeof(varint) - pos; } int reftable_is_block_type(uint8_t typ) @@ -98,19 +100,24 @@ const unsigned char *reftable_ref_record_val2(const struct reftable_ref_record * } } -static int decode_string(struct strbuf *dest, struct string_view in) +static int decode_string(struct reftable_buf *dest, struct string_view in) { int start_len = in.len; uint64_t tsize = 0; - int n = get_var_int(&tsize, &in); + int n, err; + + n = get_var_int(&tsize, &in); if (n <= 0) return -1; string_view_consume(&in, n); if (in.len < tsize) return -1; - strbuf_reset(dest); - strbuf_add(dest, in.buf, tsize); + reftable_buf_reset(dest); + err = reftable_buf_add(dest, in.buf, tsize); + if (err < 0) + return err; + string_view_consume(&in, tsize); return start_len - in.len; @@ -119,7 +126,7 @@ static int decode_string(struct strbuf *dest, struct string_view in) static int encode_string(const char *str, struct string_view s) { struct string_view start = s; - int l = strlen(str); + size_t l = strlen(str); int n = put_var_int(&s, l); if (n < 0) return -1; @@ -133,13 +140,13 @@ static int encode_string(const char *str, struct string_view s) } int reftable_encode_key(int *restart, struct string_view dest, - struct strbuf prev_key, struct strbuf key, + struct reftable_buf prev_key, struct reftable_buf key, uint8_t extra) { struct string_view start = dest; - int prefix_len = common_prefix_size(&prev_key, &key); + size_t prefix_len = common_prefix_size(&prev_key, &key); uint64_t suffix_len = key.len - prefix_len; - int n = put_var_int(&dest, (uint64_t)prefix_len); + int n = put_var_int(&dest, prefix_len); if (n < 0) return -1; string_view_consume(&dest, n); @@ -183,13 +190,13 @@ int reftable_decode_keylen(struct string_view in, return start_len - in.len; } -int reftable_decode_key(struct strbuf *last_key, uint8_t *extra, +int reftable_decode_key(struct reftable_buf *last_key, uint8_t *extra, struct string_view in) { int start_len = in.len; uint64_t prefix_len = 0; uint64_t suffix_len = 0; - int n; + int err, n; n = reftable_decode_keylen(in, &prefix_len, &suffix_len, extra); if (n < 0) @@ -200,30 +207,35 @@ int reftable_decode_key(struct strbuf *last_key, uint8_t *extra, prefix_len > last_key->len) return -1; - strbuf_setlen(last_key, prefix_len); - strbuf_add(last_key, in.buf, suffix_len); + err = reftable_buf_setlen(last_key, prefix_len); + if (err < 0) + return err; + + err = reftable_buf_add(last_key, in.buf, suffix_len); + if (err < 0) + return err; + string_view_consume(&in, suffix_len); return start_len - in.len; } -static void reftable_ref_record_key(const void *r, struct strbuf *dest) +static int reftable_ref_record_key(const void *r, struct reftable_buf *dest) { const struct reftable_ref_record *rec = (const struct reftable_ref_record *)r; - strbuf_reset(dest); - strbuf_addstr(dest, rec->refname); + reftable_buf_reset(dest); + return reftable_buf_addstr(dest, rec->refname); } -static void reftable_ref_record_copy_from(void *rec, const void *src_rec, - int hash_size) +static int reftable_ref_record_copy_from(void *rec, const void *src_rec, + uint32_t hash_size) { struct reftable_ref_record *ref = rec; const struct reftable_ref_record *src = src_rec; char *refname = NULL; size_t refname_cap = 0; - - assert(hash_size > 0); + int err; SWAP(refname, ref->refname); SWAP(refname_cap, ref->refname_cap); @@ -234,8 +246,13 @@ static void reftable_ref_record_copy_from(void *rec, const void *src_rec, if (src->refname) { size_t refname_len = strlen(src->refname); - REFTABLE_ALLOC_GROW(ref->refname, refname_len + 1, - ref->refname_cap); + REFTABLE_ALLOC_GROW_OR_NULL(ref->refname, refname_len + 1, + ref->refname_cap); + if (!ref->refname) { + err = REFTABLE_OUT_OF_MEMORY_ERROR; + goto out; + } + memcpy(ref->refname, src->refname, refname_len); ref->refname[refname_len] = 0; } @@ -254,9 +271,17 @@ static void reftable_ref_record_copy_from(void *rec, const void *src_rec, src->value.val2.target_value, hash_size); break; case REFTABLE_REF_SYMREF: - ref->value.symref = xstrdup(src->value.symref); + ref->value.symref = reftable_strdup(src->value.symref); + if (!ref->value.symref) { + err = REFTABLE_OUT_OF_MEMORY_ERROR; + goto out; + } break; } + + err = 0; +out: + return err; } static void reftable_ref_record_release_void(void *rec) @@ -292,13 +317,12 @@ static uint8_t reftable_ref_record_val_type(const void *rec) } static int reftable_ref_record_encode(const void *rec, struct string_view s, - int hash_size) + uint32_t hash_size) { const struct reftable_ref_record *r = (const struct reftable_ref_record *)rec; struct string_view start = s; int n = put_var_int(&s, r->update_index); - assert(hash_size > 0); if (n < 0) return -1; string_view_consume(&s, n); @@ -336,18 +360,16 @@ static int reftable_ref_record_encode(const void *rec, struct string_view s, return start.len - s.len; } -static int reftable_ref_record_decode(void *rec, struct strbuf key, +static int reftable_ref_record_decode(void *rec, struct reftable_buf key, uint8_t val_type, struct string_view in, - int hash_size, struct strbuf *scratch) + uint32_t hash_size, struct reftable_buf *scratch) { struct reftable_ref_record *r = rec; struct string_view start = in; uint64_t update_index = 0; const char *refname = NULL; size_t refname_cap = 0; - int n; - - assert(hash_size > 0); + int n, err; n = get_var_int(&update_index, &in); if (n < 0) @@ -360,7 +382,11 @@ static int reftable_ref_record_decode(void *rec, struct strbuf key, SWAP(r->refname, refname); SWAP(r->refname_cap, refname_cap); - REFTABLE_ALLOC_GROW(r->refname, key.len + 1, r->refname_cap); + REFTABLE_ALLOC_GROW_OR_NULL(r->refname, key.len + 1, r->refname_cap); + if (!r->refname) { + err = REFTABLE_OUT_OF_MEMORY_ERROR; + goto done; + } memcpy(r->refname, key.buf, key.len); r->refname[key.len] = 0; @@ -369,7 +395,8 @@ static int reftable_ref_record_decode(void *rec, struct strbuf key, switch (val_type) { case REFTABLE_REF_VAL1: if (in.len < hash_size) { - return -1; + err = REFTABLE_FORMAT_ERROR; + goto done; } memcpy(r->value.val1, in.buf, hash_size); @@ -378,7 +405,8 @@ static int reftable_ref_record_decode(void *rec, struct strbuf key, case REFTABLE_REF_VAL2: if (in.len < 2 * hash_size) { - return -1; + err = REFTABLE_FORMAT_ERROR; + goto done; } memcpy(r->value.val2.value, in.buf, hash_size); @@ -391,10 +419,11 @@ static int reftable_ref_record_decode(void *rec, struct strbuf key, case REFTABLE_REF_SYMREF: { int n = decode_string(scratch, in); if (n < 0) { - return -1; + err = REFTABLE_FORMAT_ERROR; + goto done; } string_view_consume(&in, n); - r->value.symref = strbuf_detach(scratch, NULL); + r->value.symref = reftable_buf_detach(scratch); } break; case REFTABLE_REF_DELETION: @@ -405,6 +434,9 @@ static int reftable_ref_record_decode(void *rec, struct strbuf key, } return start.len - in.len; + +done: + return err; } static int reftable_ref_record_is_deletion_void(const void *p) @@ -414,7 +446,7 @@ static int reftable_ref_record_is_deletion_void(const void *p) } static int reftable_ref_record_equal_void(const void *a, - const void *b, int hash_size) + const void *b, uint32_t hash_size) { struct reftable_ref_record *ra = (struct reftable_ref_record *) a; struct reftable_ref_record *rb = (struct reftable_ref_record *) b; @@ -441,39 +473,44 @@ static struct reftable_record_vtable reftable_ref_record_vtable = { .cmp = &reftable_ref_record_cmp_void, }; -static void reftable_obj_record_key(const void *r, struct strbuf *dest) +static int reftable_obj_record_key(const void *r, struct reftable_buf *dest) { const struct reftable_obj_record *rec = (const struct reftable_obj_record *)r; - strbuf_reset(dest); - strbuf_add(dest, rec->hash_prefix, rec->hash_prefix_len); + reftable_buf_reset(dest); + return reftable_buf_add(dest, rec->hash_prefix, rec->hash_prefix_len); } static void reftable_obj_record_release(void *rec) { struct reftable_obj_record *obj = rec; - FREE_AND_NULL(obj->hash_prefix); - FREE_AND_NULL(obj->offsets); + REFTABLE_FREE_AND_NULL(obj->hash_prefix); + REFTABLE_FREE_AND_NULL(obj->offsets); memset(obj, 0, sizeof(struct reftable_obj_record)); } -static void reftable_obj_record_copy_from(void *rec, const void *src_rec, - int hash_size UNUSED) +static int reftable_obj_record_copy_from(void *rec, const void *src_rec, + uint32_t hash_size UNUSED) { struct reftable_obj_record *obj = rec; - const struct reftable_obj_record *src = - (const struct reftable_obj_record *)src_rec; + const struct reftable_obj_record *src = src_rec; reftable_obj_record_release(obj); REFTABLE_ALLOC_ARRAY(obj->hash_prefix, src->hash_prefix_len); + if (!obj->hash_prefix) + return REFTABLE_OUT_OF_MEMORY_ERROR; obj->hash_prefix_len = src->hash_prefix_len; if (src->hash_prefix_len) memcpy(obj->hash_prefix, src->hash_prefix, obj->hash_prefix_len); REFTABLE_ALLOC_ARRAY(obj->offsets, src->offset_len); + if (!obj->offsets) + return REFTABLE_OUT_OF_MEMORY_ERROR; obj->offset_len = src->offset_len; COPY_ARRAY(obj->offsets, src->offsets, src->offset_len); + + return 0; } static uint8_t reftable_obj_record_val_type(const void *rec) @@ -485,7 +522,7 @@ static uint8_t reftable_obj_record_val_type(const void *rec) } static int reftable_obj_record_encode(const void *rec, struct string_view s, - int hash_size UNUSED) + uint32_t hash_size UNUSED) { const struct reftable_obj_record *r = rec; struct string_view start = s; @@ -518,21 +555,22 @@ static int reftable_obj_record_encode(const void *rec, struct string_view s, return start.len - s.len; } -static int reftable_obj_record_decode(void *rec, struct strbuf key, +static int reftable_obj_record_decode(void *rec, struct reftable_buf key, uint8_t val_type, struct string_view in, - int hash_size UNUSED, - struct strbuf *scratch UNUSED) + uint32_t hash_size UNUSED, + struct reftable_buf *scratch UNUSED) { struct string_view start = in; struct reftable_obj_record *r = rec; uint64_t count = val_type; int n = 0; uint64_t last; - int j; reftable_obj_record_release(r); REFTABLE_ALLOC_ARRAY(r->hash_prefix, key.len); + if (!r->hash_prefix) + return REFTABLE_OUT_OF_MEMORY_ERROR; memcpy(r->hash_prefix, key.buf, key.len); r->hash_prefix_len = key.len; @@ -551,6 +589,8 @@ static int reftable_obj_record_decode(void *rec, struct strbuf key, return start.len - in.len; REFTABLE_ALLOC_ARRAY(r->offsets, count); + if (!r->offsets) + return REFTABLE_OUT_OF_MEMORY_ERROR; r->offset_len = count; n = get_var_int(&r->offsets[0], &in); @@ -559,8 +599,7 @@ static int reftable_obj_record_decode(void *rec, struct strbuf key, string_view_consume(&in, n); last = r->offsets[0]; - j = 1; - while (j < count) { + for (uint64_t j = 1; j < count; j++) { uint64_t delta = 0; int n = get_var_int(&delta, &in); if (n < 0) { @@ -569,7 +608,6 @@ static int reftable_obj_record_decode(void *rec, struct strbuf key, string_view_consume(&in, n); last = r->offsets[j] = (delta + last); - j++; } return start.len - in.len; } @@ -580,7 +618,7 @@ static int not_a_deletion(const void *p UNUSED) } static int reftable_obj_record_equal_void(const void *a, const void *b, - int hash_size UNUSED) + uint32_t hash_size UNUSED) { struct reftable_obj_record *ra = (struct reftable_obj_record *) a; struct reftable_obj_record *rb = (struct reftable_obj_record *) b; @@ -631,48 +669,67 @@ static struct reftable_record_vtable reftable_obj_record_vtable = { .cmp = &reftable_obj_record_cmp_void, }; -static void reftable_log_record_key(const void *r, struct strbuf *dest) +static int reftable_log_record_key(const void *r, struct reftable_buf *dest) { const struct reftable_log_record *rec = (const struct reftable_log_record *)r; - int len = strlen(rec->refname); + int len = strlen(rec->refname), err; uint8_t i64[8]; uint64_t ts = 0; - strbuf_reset(dest); - strbuf_add(dest, (uint8_t *)rec->refname, len + 1); + + reftable_buf_reset(dest); + err = reftable_buf_add(dest, (uint8_t *)rec->refname, len + 1); + if (err < 0) + return err; ts = (~ts) - rec->update_index; put_be64(&i64[0], ts); - strbuf_add(dest, i64, sizeof(i64)); + + err = reftable_buf_add(dest, i64, sizeof(i64)); + if (err < 0) + return err; + + return 0; } -static void reftable_log_record_copy_from(void *rec, const void *src_rec, - int hash_size) +static int reftable_log_record_copy_from(void *rec, const void *src_rec, + uint32_t hash_size) { struct reftable_log_record *dst = rec; const struct reftable_log_record *src = (const struct reftable_log_record *)src_rec; + int ret; reftable_log_record_release(dst); *dst = *src; + if (dst->refname) { - dst->refname = xstrdup(dst->refname); + dst->refname = reftable_strdup(dst->refname); + if (!dst->refname) { + ret = REFTABLE_OUT_OF_MEMORY_ERROR; + goto out; + } } + switch (dst->value_type) { case REFTABLE_LOG_DELETION: break; case REFTABLE_LOG_UPDATE: - if (dst->value.update.email) { + if (dst->value.update.email) dst->value.update.email = - xstrdup(dst->value.update.email); - } - if (dst->value.update.name) { + reftable_strdup(dst->value.update.email); + if (dst->value.update.name) dst->value.update.name = - xstrdup(dst->value.update.name); - } - if (dst->value.update.message) { + reftable_strdup(dst->value.update.name); + if (dst->value.update.message) dst->value.update.message = - xstrdup(dst->value.update.message); + reftable_strdup(dst->value.update.message); + + if (!dst->value.update.email || + !dst->value.update.name || + !dst->value.update.message) { + ret = REFTABLE_OUT_OF_MEMORY_ERROR; + goto out; } memcpy(dst->value.update.new_hash, @@ -681,6 +738,10 @@ static void reftable_log_record_copy_from(void *rec, const void *src_rec, src->value.update.old_hash, hash_size); break; } + + ret = 0; +out: + return ret; } static void reftable_log_record_release_void(void *rec) @@ -713,7 +774,7 @@ static uint8_t reftable_log_record_val_type(const void *rec) } static int reftable_log_record_encode(const void *rec, struct string_view s, - int hash_size) + uint32_t hash_size) { const struct reftable_log_record *r = rec; struct string_view start = s; @@ -759,20 +820,25 @@ static int reftable_log_record_encode(const void *rec, struct string_view s, return start.len - s.len; } -static int reftable_log_record_decode(void *rec, struct strbuf key, +static int reftable_log_record_decode(void *rec, struct reftable_buf key, uint8_t val_type, struct string_view in, - int hash_size, struct strbuf *scratch) + uint32_t hash_size, struct reftable_buf *scratch) { struct string_view start = in; struct reftable_log_record *r = rec; uint64_t max = 0; uint64_t ts = 0; - int n; + int err, n; if (key.len <= 9 || key.buf[key.len - 9] != 0) return REFTABLE_FORMAT_ERROR; - REFTABLE_ALLOC_GROW(r->refname, key.len - 8, r->refname_cap); + REFTABLE_ALLOC_GROW_OR_NULL(r->refname, key.len - 8, r->refname_cap); + if (!r->refname) { + err = REFTABLE_OUT_OF_MEMORY_ERROR; + goto done; + } + memcpy(r->refname, key.buf, key.len - 8); ts = get_be64(key.buf + key.len - 8); @@ -781,10 +847,10 @@ static int reftable_log_record_decode(void *rec, struct strbuf key, if (val_type != r->value_type) { switch (r->value_type) { case REFTABLE_LOG_UPDATE: - FREE_AND_NULL(r->value.update.message); + REFTABLE_FREE_AND_NULL(r->value.update.message); r->value.update.message_cap = 0; - FREE_AND_NULL(r->value.update.email); - FREE_AND_NULL(r->value.update.name); + REFTABLE_FREE_AND_NULL(r->value.update.email); + REFTABLE_FREE_AND_NULL(r->value.update.name); break; case REFTABLE_LOG_DELETION: break; @@ -795,8 +861,10 @@ static int reftable_log_record_decode(void *rec, struct strbuf key, if (val_type == REFTABLE_LOG_DELETION) return 0; - if (in.len < 2 * hash_size) - return REFTABLE_FORMAT_ERROR; + if (in.len < 2 * hash_size) { + err = REFTABLE_FORMAT_ERROR; + goto done; + } memcpy(r->value.update.old_hash, in.buf, hash_size); memcpy(r->value.update.new_hash, in.buf + hash_size, hash_size); @@ -804,8 +872,10 @@ static int reftable_log_record_decode(void *rec, struct strbuf key, string_view_consume(&in, 2 * hash_size); n = decode_string(scratch, in); - if (n < 0) + if (n < 0) { + err = REFTABLE_FORMAT_ERROR; goto done; + } string_view_consume(&in, n); /* @@ -816,52 +886,75 @@ static int reftable_log_record_decode(void *rec, struct strbuf key, */ if (!r->value.update.name || strcmp(r->value.update.name, scratch->buf)) { - r->value.update.name = - reftable_realloc(r->value.update.name, scratch->len + 1); + char *name = reftable_realloc(r->value.update.name, scratch->len + 1); + if (!name) { + err = REFTABLE_OUT_OF_MEMORY_ERROR; + goto done; + } + + r->value.update.name = name; memcpy(r->value.update.name, scratch->buf, scratch->len); r->value.update.name[scratch->len] = 0; } n = decode_string(scratch, in); - if (n < 0) + if (n < 0) { + err = REFTABLE_FORMAT_ERROR; goto done; + } string_view_consume(&in, n); /* Same as above, but for the reflog email. */ if (!r->value.update.email || strcmp(r->value.update.email, scratch->buf)) { - r->value.update.email = - reftable_realloc(r->value.update.email, scratch->len + 1); + char *email = reftable_realloc(r->value.update.email, scratch->len + 1); + if (!email) { + err = REFTABLE_OUT_OF_MEMORY_ERROR; + goto done; + } + + r->value.update.email = email; memcpy(r->value.update.email, scratch->buf, scratch->len); r->value.update.email[scratch->len] = 0; } ts = 0; n = get_var_int(&ts, &in); - if (n < 0) + if (n < 0) { + err = REFTABLE_FORMAT_ERROR; goto done; + } string_view_consume(&in, n); r->value.update.time = ts; - if (in.len < 2) + if (in.len < 2) { + err = REFTABLE_FORMAT_ERROR; goto done; + } r->value.update.tz_offset = get_be16(in.buf); string_view_consume(&in, 2); n = decode_string(scratch, in); - if (n < 0) + if (n < 0) { + err = REFTABLE_FORMAT_ERROR; goto done; + } string_view_consume(&in, n); - REFTABLE_ALLOC_GROW(r->value.update.message, scratch->len + 1, - r->value.update.message_cap); + REFTABLE_ALLOC_GROW_OR_NULL(r->value.update.message, scratch->len + 1, + r->value.update.message_cap); + if (!r->value.update.message) { + err = REFTABLE_OUT_OF_MEMORY_ERROR; + goto done; + } + memcpy(r->value.update.message, scratch->buf, scratch->len); r->value.update.message[scratch->len] = 0; return start.len - in.len; done: - return REFTABLE_FORMAT_ERROR; + return err; } static int null_streq(const char *a, const char *b) @@ -877,7 +970,7 @@ static int null_streq(const char *a, const char *b) } static int reftable_log_record_equal_void(const void *a, - const void *b, int hash_size) + const void *b, uint32_t hash_size) { return reftable_log_record_equal((struct reftable_log_record *) a, (struct reftable_log_record *) b, @@ -901,7 +994,7 @@ static int reftable_log_record_cmp_void(const void *_a, const void *_b) } int reftable_log_record_equal(const struct reftable_log_record *a, - const struct reftable_log_record *b, int hash_size) + const struct reftable_log_record *b, uint32_t hash_size) { if (!(null_streq(a->refname, b->refname) && a->update_index == b->update_index && @@ -947,28 +1040,33 @@ static struct reftable_record_vtable reftable_log_record_vtable = { .cmp = &reftable_log_record_cmp_void, }; -static void reftable_index_record_key(const void *r, struct strbuf *dest) +static int reftable_index_record_key(const void *r, struct reftable_buf *dest) { const struct reftable_index_record *rec = r; - strbuf_reset(dest); - strbuf_addbuf(dest, &rec->last_key); + reftable_buf_reset(dest); + return reftable_buf_add(dest, rec->last_key.buf, rec->last_key.len); } -static void reftable_index_record_copy_from(void *rec, const void *src_rec, - int hash_size UNUSED) +static int reftable_index_record_copy_from(void *rec, const void *src_rec, + uint32_t hash_size UNUSED) { struct reftable_index_record *dst = rec; const struct reftable_index_record *src = src_rec; + int err; - strbuf_reset(&dst->last_key); - strbuf_addbuf(&dst->last_key, &src->last_key); + reftable_buf_reset(&dst->last_key); + err = reftable_buf_add(&dst->last_key, src->last_key.buf, src->last_key.len); + if (err < 0) + return err; dst->offset = src->offset; + + return 0; } static void reftable_index_record_release(void *rec) { struct reftable_index_record *idx = rec; - strbuf_release(&idx->last_key); + reftable_buf_release(&idx->last_key); } static uint8_t reftable_index_record_val_type(const void *rec UNUSED) @@ -977,7 +1075,7 @@ static uint8_t reftable_index_record_val_type(const void *rec UNUSED) } static int reftable_index_record_encode(const void *rec, struct string_view out, - int hash_size UNUSED) + uint32_t hash_size UNUSED) { const struct reftable_index_record *r = (const struct reftable_index_record *)rec; @@ -992,18 +1090,20 @@ static int reftable_index_record_encode(const void *rec, struct string_view out, return start.len - out.len; } -static int reftable_index_record_decode(void *rec, struct strbuf key, +static int reftable_index_record_decode(void *rec, struct reftable_buf key, uint8_t val_type UNUSED, struct string_view in, - int hash_size UNUSED, - struct strbuf *scratch UNUSED) + uint32_t hash_size UNUSED, + struct reftable_buf *scratch UNUSED) { struct string_view start = in; struct reftable_index_record *r = rec; - int n = 0; + int err, n = 0; - strbuf_reset(&r->last_key); - strbuf_addbuf(&r->last_key, &key); + reftable_buf_reset(&r->last_key); + err = reftable_buf_add(&r->last_key, key.buf, key.len); + if (err < 0) + return err; n = get_var_int(&r->offset, &in); if (n < 0) @@ -1014,19 +1114,19 @@ static int reftable_index_record_decode(void *rec, struct strbuf key, } static int reftable_index_record_equal(const void *a, const void *b, - int hash_size UNUSED) + uint32_t hash_size UNUSED) { 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); + return ia->offset == ib->offset && !reftable_buf_cmp(&ia->last_key, &ib->last_key); } static int reftable_index_record_cmp(const void *_a, const void *_b) { const struct reftable_index_record *a = _a; const struct reftable_index_record *b = _b; - return strbuf_cmp(&a->last_key, &b->last_key); + return reftable_buf_cmp(&a->last_key, &b->last_key); } static struct reftable_record_vtable reftable_index_record_vtable = { @@ -1042,26 +1142,26 @@ static struct reftable_record_vtable reftable_index_record_vtable = { .cmp = &reftable_index_record_cmp, }; -void reftable_record_key(struct reftable_record *rec, struct strbuf *dest) +int reftable_record_key(struct reftable_record *rec, struct reftable_buf *dest) { - reftable_record_vtable(rec)->key(reftable_record_data(rec), dest); + return reftable_record_vtable(rec)->key(reftable_record_data(rec), dest); } int reftable_record_encode(struct reftable_record *rec, struct string_view dest, - int hash_size) + uint32_t 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) +int reftable_record_copy_from(struct reftable_record *rec, + struct reftable_record *src, uint32_t hash_size) { assert(src->type == rec->type); - reftable_record_vtable(rec)->copy_from(reftable_record_data(rec), - reftable_record_data(src), - hash_size); + return 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) @@ -1069,9 +1169,9 @@ uint8_t reftable_record_val_type(struct reftable_record *rec) 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, - struct strbuf *scratch) +int reftable_record_decode(struct reftable_record *rec, struct reftable_buf key, + uint8_t extra, struct string_view src, uint32_t hash_size, + struct reftable_buf *scratch) { return reftable_record_vtable(rec)->decode(reftable_record_data(rec), key, extra, src, hash_size, @@ -1097,7 +1197,7 @@ int reftable_record_cmp(struct reftable_record *a, struct reftable_record *b) reftable_record_data(a), reftable_record_data(b)); } -int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, int hash_size) +int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, uint32_t hash_size) { if (a->type != b->type) return 0; @@ -1105,7 +1205,7 @@ int reftable_record_equal(struct reftable_record *a, struct reftable_record *b, reftable_record_data(a), reftable_record_data(b), hash_size); } -static int hash_equal(const unsigned char *a, const unsigned char *b, int hash_size) +static int hash_equal(const unsigned char *a, const unsigned char *b, uint32_t hash_size) { if (a && b) return !memcmp(a, b, hash_size); @@ -1114,9 +1214,8 @@ static int hash_equal(const unsigned char *a, const unsigned char *b, int hash_s } int reftable_ref_record_equal(const struct reftable_ref_record *a, - const struct reftable_ref_record *b, int hash_size) + const struct reftable_ref_record *b, uint32_t hash_size) { - assert(hash_size > 0); if (!null_streq(a->refname, b->refname)) return 0; @@ -1212,7 +1311,7 @@ void reftable_record_init(struct reftable_record *rec, uint8_t typ) case BLOCK_TYPE_OBJ: return; case BLOCK_TYPE_INDEX: - strbuf_init(&rec->u.idx.last_key, 0); + reftable_buf_init(&rec->u.idx.last_key); return; default: BUG("unhandled record type"); 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