static size_t assemble_id_index_value(DocInfo *docinfo, char *dst)
{
char* const start = dst;
raw_id_index_value *raw = (raw_id_index_value*)dst;
raw->db_seq = encode_raw48(docinfo->db_seq);
raw->size = encode_raw32((uint32_t)docinfo->size);
raw->bp = encode_raw48(docinfo->bp | (docinfo->deleted ? 1LL<<47 : 0));
raw->content_meta = encode_raw08(docinfo->content_meta);
raw->rev_seq = encode_raw48(docinfo->rev_seq);
dst += sizeof(*raw);
memcpy(dst, docinfo->rev_meta.buf, docinfo->rev_meta.size);
dst += docinfo->rev_meta.size;
return dst - start;
}
static couchstore_error_t write_header(Db *db)
{
sized_buf writebuf;
size_t seqrootsize = 0, idrootsize = 0, localrootsize = 0;
if (db->header.by_seq_root) {
seqrootsize = ROOT_BASE_SIZE + db->header.by_seq_root->reduce_value.size;
}
if (db->header.by_id_root) {
idrootsize = ROOT_BASE_SIZE + db->header.by_id_root->reduce_value.size;
}
if (db->header.local_docs_root) {
localrootsize = ROOT_BASE_SIZE + db->header.local_docs_root->reduce_value.size;
}
writebuf.size = sizeof(raw_file_header) + seqrootsize + idrootsize + localrootsize;
writebuf.buf = (char *) calloc(1, writebuf.size);
raw_file_header* header = (raw_file_header*)writebuf.buf;
header->version = encode_raw08(COUCH_DISK_VERSION);
header->update_seq = encode_raw48(db->header.update_seq);
header->purge_seq = encode_raw48(db->header.purge_seq);
header->purge_ptr = encode_raw48(db->header.purge_ptr);
header->seqrootsize = encode_raw16((uint16_t)seqrootsize);
header->idrootsize = encode_raw16((uint16_t)idrootsize);
header->localrootsize = encode_raw16((uint16_t)localrootsize);
uint8_t *root = (uint8_t*)(header + 1);
encode_root(root, db->header.by_seq_root);
root += seqrootsize;
encode_root(root, db->header.by_id_root);
root += idrootsize;
encode_root(root, db->header.local_docs_root);
cs_off_t pos;
couchstore_error_t errcode = db_write_header(&db->file, &writebuf, &pos);
if (errcode == COUCHSTORE_SUCCESS) {
db->header.position = pos;
}
free(writebuf.buf);
return errcode;
}
static void test_raw_08(uint8_t value)
{
raw_08 raw;
raw = encode_raw08(value);
assert(decode_raw08(raw) == value);
}
