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new e7d65e4 [style] translate code annotations into english (#7752)
e7d65e4 is described below
commit e7d65e488cee6981e910a74a056b1847b955ae4a
Author: Yu Sheng <[email protected]>
AuthorDate: Fri Jan 14 09:37:46 2022 +0800
[style] translate code annotations into english (#7752)
Translate Chinese code comments into English，the following files has been
modified:
1. be/src/olap/row_cursor.h
2. be/src/olap/compress.h
---
be/src/olap/compress.h | 24 +++++++++++++-----------
be/src/olap/row_cursor.h | 29 ++++++++++++++---------------
2 files changed, 27 insertions(+), 26 deletions(-)
diff --git a/be/src/olap/compress.h b/be/src/olap/compress.h
index 6b85f74..769da51 100644
--- a/be/src/olap/compress.h
+++ b/be/src/olap/compress.h
@@ -24,23 +24,25 @@ namespace doris {
class StorageByteBuffer;
-// 定义压缩函数,将in中剩余的内存压缩,并保存到out中剩余的空间
+// Define a compression function to compress the remaining memory in the input
buffer
+// and save it to the remaining space in the output buffer
// Inputs:
-// in - 输入缓冲区,压缩从position到limit位置的内存
-// out - 输出缓冲区,从position到limit的空间可以用于存放数据
-// smaller - 压缩后的数据大小是否小于压缩前的数据大小
+// in - input buffer,Compress memory from position to limit
+// out - output buffer,The space from position to limit can be used to
store data
+// smaller - Whether the compressed data size is smaller than the data
size before compression
// Returns:
-// OLAP_ERR_BUFFER_OVERFLOW - out中的剩余空间不足
-// OLAP_ERR_COMPRESS_ERROR - 压缩错误
+// OLAP_ERR_BUFFER_OVERFLOW - Insufficient space left in output buffer
+// OLAP_ERR_COMPRESS_ERROR - Compression error
typedef OLAPStatus (*Compressor)(StorageByteBuffer* in, StorageByteBuffer*
out, bool* smaller);
-// 定义解压缩函数,将in中剩余的内存解压缩,并保存到out中剩余的空间
+// Define a decompression function to decompress the remaining memory in the
input buffer
+// and save it to the remaining space in the output buffer
// Inputs:
-// in - 输入缓冲区,解压缩从position到limit位置的内存
-// out - 输出缓冲区,从position到limit的空间可以用于存放数据
+// in - input buffer,Decompress memory from position to limit
+// out - output buffer,The space from position to limit can be used to
store data
// Returns:
-// OLAP_ERR_BUFFER_OVERFLOW - out中的剩余空间不足
-// OLAP_ERR_DECOMPRESS_ERROR - 解压缩错误
+// OLAP_ERR_BUFFER_OVERFLOW - Insufficient space left in output buffer
+// OLAP_ERR_DECOMPRESS_ERROR - decompression error
typedef OLAPStatus (*Decompressor)(StorageByteBuffer* in, StorageByteBuffer*
out);
#ifdef DORIS_WITH_LZO
diff --git a/be/src/olap/row_cursor.h b/be/src/olap/row_cursor.h
index bfffe3c..e94e832 100644
--- a/be/src/olap/row_cursor.h
+++ b/be/src/olap/row_cursor.h
@@ -31,30 +31,29 @@
namespace doris {
class Field;
-// 代理一行数据的操作
+// Delegate the operation of a row of data
class RowCursor {
public:
static const int DEFAULT_TEXT_LENGTH = 128;
RowCursor();
- // 遍历销毁field指针
+ // Traverse and destroy the field cursor
~RowCursor();
- // 根据传入schema的创建RowCursor
+ // Create a RowCursor based on the schema
OLAPStatus init(const TabletSchema& schema);
OLAPStatus init(const std::vector<TabletColumn>& schema);
- // 根据传入schema的前n列创建RowCursor
+ // Create a RowCursor based on the first n columns of the schema
OLAPStatus init(const std::vector<TabletColumn>& schema, size_t
column_count);
OLAPStatus init(const TabletSchema& schema, size_t column_count);
- // 根据传入schema和column id list创建RowCursor，
- // 用于计算过程只使用部分非前缀连续列的场景
+ // Create a RowCursor based on the schema and column id list
+ // which is used for the calculation process only uses some discontinuous
prefix columns
OLAPStatus init(const TabletSchema& schema, const std::vector<uint32_t>&
columns);
- // 用传入的key的size来初始化
- // 目前仅用在拆分key区间的时候
+ // Initialize with the size of the key, currently only used when splitting
the range of key
OLAPStatus init_scan_key(const TabletSchema& schema, const
std::vector<std::string>& keys);
OLAPStatus init_scan_key(const TabletSchema& schema,
@@ -66,10 +65,10 @@ public:
RowCursorCell cell(uint32_t cid) const { return
RowCursorCell(nullable_cell_ptr(cid)); }
- // RowCursor attach到一段连续的buf
+ // RowCursor received a continuous buf
inline void attach(char* buf) { _fixed_buf = buf; }
- // 输出一列的index到buf
+ // Output the index of a column to buf
void write_index_by_index(size_t index, char* index_ptr) const {
auto dst_cell = RowCursorCell(index_ptr);
column_schema(index)->to_index(&dst_cell, cell(index));
@@ -93,15 +92,15 @@ public:
return column_schema(index)->convert_from(dest, src, src_type,
mem_pool);
}
- // 从传入的字符串数组反序列化内部各field的值
- // 每个字符串必须是一个\0结尾的字符串
- // 要求输入字符串和row cursor有相同的列数，
+ // Deserialize the value of each field from the string array,
+ // Each array item must be a \0 terminated string
+ // and the input string and line cursor need the same number of columns
OLAPStatus from_tuple(const OlapTuple& tuple);
- // 返回当前row cursor中列的个数
+ // Returns the number of columns in the current row cursor
size_t field_count() const { return _schema->column_ids().size(); }
- // 以string格式输出rowcursor内容，仅供log及debug使用
+ // Output row cursor content in string format, only for using of log and
debug
std::string to_string() const;
OlapTuple to_tuple() const;
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