예제 #1
0
        private static void SetStream_Unchecked(SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metadata, StreamDataFeed feed) {
            long len = metadata.MaxLength;
            byte[] buff = new byte[constBinBufferSize];
            int nWritten = 0;
            do {
                int nRead = 0;
                int readSize = constBinBufferSize;
                if (len > 0 && nWritten + readSize > len) {
                    readSize = (int)(len - nWritten);
                }

                Debug.Assert(readSize >= 0);

                nRead = feed._source.Read(buff, 0, readSize);

                if (nRead == 0) {
                    break;
                }

                setters.SetBytes(sink, ordinal, nWritten, buff, 0, nRead);
                sink.ProcessMessagesAndThrow();

                nWritten += nRead;
            } while (len <= 0 || nWritten < len);

            setters.SetBytesLength(sink, ordinal, nWritten);
            sink.ProcessMessagesAndThrow();
        }
예제 #2
0
        // note: length < 0 indicates write everything
        private static void SetSqlBytes_Unchecked( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SqlBytes value, int offset, long length ) {
            if ( value.IsNull ) {
                setters.SetDBNull( sink, ordinal );
                sink.ProcessMessagesAndThrow();
            }
            else {
                int chunkSize;
                if ( length > __maxByteChunkSize || length < 0 ) {
                    chunkSize = __maxByteChunkSize;
                }
                else {
                    chunkSize = checked( (int)length );
                }

                byte[] buffer = new byte[ chunkSize ];
                long bytesRead;
                long bytesWritten = 1;  // prime value to get into write loop
                long currentOffset = offset;
                long lengthWritten = 0;

                while ( (length < 0  || lengthWritten < length) &&
                        0 != ( bytesRead = value.Read( currentOffset, buffer, 0, chunkSize ) ) &&
                        0 != bytesWritten ) {
                    bytesWritten = setters.SetBytes( sink, ordinal, currentOffset, buffer, 0, checked( (int) bytesRead ) );
                    sink.ProcessMessagesAndThrow();
                    checked{ currentOffset += bytesWritten; }
                    checked{ lengthWritten += bytesWritten; }
                }

                // Make sure to trim any left-over data
                setters.SetBytesLength( sink, ordinal, currentOffset );
                sink.ProcessMessagesAndThrow();
            }
        }
예제 #3
0
 private static void SetByteArray_Unchecked( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, byte[] buffer, int bufferOffset, int length ) {
     if ( length > 0 ) {
         setters.SetBytes( sink, ordinal, 0, buffer, bufferOffset, length );
         sink.ProcessMessagesAndThrow();
     }
     setters.SetBytesLength( sink, ordinal, length );
     sink.ProcessMessagesAndThrow();
 }
예제 #4
0
        private static void SetBytes_FromRecord( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData, SqlDataRecord record, int offset ) {
            int length = 0;

            // Deal with large values by sending bufferLength of NoLengthLimit (== assume 
            //  CheckXetParameters will ignore requested-length checks in this case
            long bufferLength = record.GetBytes(ordinal, 0, null, 0, 0);
            if ( bufferLength > Int32.MaxValue ) {
                bufferLength = NoLengthLimit;
            }
            length = CheckXetParameters( metaData.SqlDbType, metaData.MaxLength, NoLengthLimit /* actual */, 0, checked( (int) bufferLength ), offset, checked( (int) bufferLength ) );

            int chunkSize;
            if ( length > __maxByteChunkSize || length < 0 ) {
                chunkSize = __maxByteChunkSize;
            }
            else {
                chunkSize = checked( (int)length );
            }

            byte[] buffer = new byte[ chunkSize ];
            long bytesRead;
            long bytesWritten = 1;  // prime value to get into write loop
            long currentOffset = offset;
            long lengthWritten = 0;

            while ( (length < 0  || lengthWritten < length) &&
                    0 != ( bytesRead = record.GetBytes( ordinal, currentOffset, buffer, 0, chunkSize ) ) &&
                    0 != bytesWritten ) {
                bytesWritten = setters.SetBytes( sink, ordinal, currentOffset, buffer, 0, checked( (int) bytesRead ) );
                sink.ProcessMessagesAndThrow();
                checked{ currentOffset += bytesWritten; }
                checked{ lengthWritten += bytesWritten; }
            }

            // Make sure to trim any left-over data
            setters.SetBytesLength( sink, ordinal, currentOffset );
            sink.ProcessMessagesAndThrow();
        }
예제 #5
0
        internal static long SetBytesLength( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData, long length ) {
            ThrowIfInvalidSetterAccess( metaData, ExtendedClrTypeCode.ByteArray );

            if ( length < 0 ) {
                throw ADP.InvalidDataLength( length );
            }

            if ( metaData.MaxLength >= 0 && length > metaData.MaxLength ) {
                length = metaData.MaxLength;
            }

            setters.SetBytesLength( sink, ordinal, length );
            sink.ProcessMessagesAndThrow();

            return length;
        }
 private static void SetSqlBytes_Unchecked(SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SqlBytes value, int offset, long length)
 {
     if (value.IsNull)
     {
         setters.SetDBNull(sink, ordinal);
         sink.ProcessMessagesAndThrow();
     }
     else
     {
         int num4;
         long num5;
         if ((length > 0x1f40L) || (length < 0L))
         {
             num4 = 0x1f40;
         }
         else
         {
             num4 = (int) length;
         }
         byte[] buffer = new byte[num4];
         long num2 = 1L;
         long num = offset;
         for (long i = 0L; ((length < 0L) || (i < length)) && ((0L != (num5 = value.Read(num, buffer, 0, num4))) && (0L != num2)); i += num2)
         {
             num2 = setters.SetBytes(sink, ordinal, num, buffer, 0, (int) num5);
             sink.ProcessMessagesAndThrow();
             num += num2;
         }
         setters.SetBytesLength(sink, ordinal, num);
         sink.ProcessMessagesAndThrow();
     }
 }
 private static void SetBytes_FromRecord(SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData, SqlDataRecord record, int offset)
 {
     int num6;
     long num7;
     int num = 0;
     long num4 = record.GetBytes(ordinal, 0L, null, 0, 0);
     if (num4 > 0x7fffffffL)
     {
         num4 = -1L;
     }
     num = CheckXetParameters(metaData.SqlDbType, metaData.MaxLength, -1L, 0L, (int) num4, offset, (int) num4);
     if ((num > 0x1f40) || (num < 0))
     {
         num6 = 0x1f40;
     }
     else
     {
         num6 = num;
     }
     byte[] buffer = new byte[num6];
     long num3 = 1L;
     long fieldOffset = offset;
     for (long i = 0L; ((num < 0) || (i < num)) && ((0L != (num7 = record.GetBytes(ordinal, fieldOffset, buffer, 0, num6))) && (0L != num3)); i += num3)
     {
         num3 = setters.SetBytes(sink, ordinal, fieldOffset, buffer, 0, (int) num7);
         sink.ProcessMessagesAndThrow();
         fieldOffset += num3;
     }
     setters.SetBytesLength(sink, ordinal, fieldOffset);
     sink.ProcessMessagesAndThrow();
 }