Function build_table_cell

internal/cbm/sqlite_writer.c:827–842

// Table leaf cell: varint(payload_len) + varint(rowid) + payload

static uint8_t *build_table_cell(int64_t rowid, const uint8_t *payload, int payload_len,
                                 int *out_cell_len) {
    int rl = varint_len(payload_len);
    int kl = varint_len(rowid);
    int total = rl + kl + payload_len;
    uint8_t *cell = (uint8_t *)malloc(total);
    if (!cell) {
        return NULL;
    }
    int pos = 0;
    pos += put_varint(cell + pos, payload_len);
    pos += put_varint(cell + pos, rowid);
    memcpy(cell + pos, payload, payload_len);
    *out_cell_len = pos + payload_len;
    return cell;
}

// Build a table leaf cell with overflow: stores only the first local_len bytes of
// payload inline, followed by a 4-byte overflow page number.