chore: adjust comments (alibaba#187)

Author: lxy-9602

src/paimon/common/compression/block_compressor.h

@@ -29,31 +29,25 @@ class BlockCompressor {
     virtual ~BlockCompressor() = default;
 
  public:
-    /**
-     * Get the max compressed size for a given original size.
-     * @param src_size The original size
-     * @return The max compressed size
-     */
+    /// Get the max compressed size for a given original size.
+    /// @param src_size The original size
+    /// @return The max compressed size
     virtual int32_t GetMaxCompressedSize(int32_t src_size) = 0;
 
-    /**
-     * Compress data read from src, and write the compressed data to dst.
-     *
-     * @param src Uncompressed data to read from
-     * @param src_length The length of data which want to be compressed
-     * @param dst The target to write compressed data
-     * @param dst_length The max length of data
-     * @return Length of compressed data
-     */
     /// Compress data read from src, and write the compressed data to dst.
+    ///
+    /// @param src Uncompressed data to read from
+    /// @param src_length The length of data which want to be compressed
+    /// @param dst The target to write compressed data
+    /// @param dst_length The max length of data
+    /// @return Length of compressed data
     virtual Result<int32_t> Compress(const char* src, int32_t src_length, char* dst,
                                      int32_t dst_length) = 0;
 
  public:
-    /**
-     * We put two integers before each compressed block, the first integer represents the compressed
-     * length of the block, and the second one represents the original length of the block.
-     */
+    /// We put two integers before each compressed block, the first integer represents the
+    /// compressed length of the block, and the second one represents the original length of the
+    /// block.
     static constexpr int32_t HEADER_LENGTH = 8;
 };
 }  // namespace paimon

src/paimon/common/compression/block_decompressor.h

@@ -31,15 +31,13 @@ class BlockDecompressor {
     virtual ~BlockDecompressor() = default;
 
  public:
-    /**
-     * Decompress data read from src, and write the decompressed data to dst.
-     *
-     * @param src Compressed data to read from
-     * @param src_length The length of data which want to be decompressed
-     * @param dst The target to write decompressed data
-     * @param dst_length The max length of data
-     * @return Length of decompressed data
-     */
+    /// Decompress data read from src, and write the decompressed data to dst.
+    ///
+    /// @param src Compressed data to read from
+    /// @param src_length The length of data which want to be decompressed
+    /// @param dst The target to write decompressed data
+    /// @param dst_length The max length of data
+    /// @return Length of decompressed data
     virtual Result<int32_t> Decompress(const char* src, int32_t src_length, char* dst,
                                        int32_t dst_length) = 0;
 

src/paimon/common/sst/sst_file_reader.h

@@ -46,30 +46,24 @@ class SstFileReader {
 
     std::unique_ptr<SstFileIterator> CreateIterator();
 
-    /**
-     * Lookup the specified key in the file.
-     *
-     * @param key serialized key
-     * @return corresponding serialized value, nullptr if not found.
-     */
+    /// Lookup the specified key in the file.
+    ///
+    /// @param key serialized key
+    /// @return corresponding serialized value, nullptr if not found.
     Result<std::shared_ptr<Bytes>> Lookup(const std::shared_ptr<Bytes>& key);
 
     Result<std::unique_ptr<BlockIterator>> GetNextBlock(
         std::unique_ptr<BlockIterator>& index_iterator);
 
-    /**
-     * @param handle The block handle.
-     * @param index Whether read the block as an index.
-     * @return The reader of the target block.
-     */
+    /// @param handle The block handle.
+    /// @param index Whether read the block as an index.
+    /// @return The reader of the target block.
     Result<std::shared_ptr<BlockReader>> ReadBlock(std::shared_ptr<BlockHandle>&& handle,
                                                    bool index);
 
-    /**
-     * @param handle The block handle.
-     * @param index Whether read the block as an index.
-     * @return The reader of the target block.
-     */
+    /// @param handle The block handle.
+    /// @param index Whether read the block as an index.
+    /// @return The reader of the target block.
     Result<std::shared_ptr<BlockReader>> ReadBlock(const std::shared_ptr<BlockHandle>& handle,
                                                    bool index);
 
@@ -98,10 +92,8 @@ class SstFileIterator {
  public:
     SstFileIterator(SstFileReader* reader, std::unique_ptr<BlockIterator> index_iterator);
 
-    /**
-     * Seek to the position of the record whose key is exactly equal to or greater than the
-     * specified key.
-     */
+    /// Seek to the position of the record whose key is exactly equal to or greater than the
+    /// specified key.
     Status SeekTo(const std::shared_ptr<Bytes>& key);
 
  private:

src/paimon/common/utils/crc32c.h

@@ -32,14 +32,12 @@ class PAIMON_EXPORT CRC32C {
 
  private:
 #if defined(PAIMON_HAVE_SSE4_2)
-    /**
-     * Simd implementation for crc32c.
-     *
-     * @param data data to be calculated
-     * @param length length of data
-     * @param crc initial crc value
-     * @return crc32c value
-     */
+    /// Simd implementation for crc32c.
+    ///
+    /// @param data data to be calculated
+    /// @param length length of data
+    /// @param crc initial crc value
+    /// @return crc32c value
     static uint32_t crc32c_hw(const char* data, size_t length, uint32_t crc);
 #endif
 };