github.com/deanMdreon/kafka-go@v0.4.32/discard.go (about)

     1  package kafka
     2  
     3  import "bufio"
     4  
     5  func discardN(r *bufio.Reader, sz int, n int) (int, error) {
     6  	var err error
     7  	if n <= sz {
     8  		n, err = r.Discard(n)
     9  	} else {
    10  		n, err = r.Discard(sz)
    11  		if err == nil {
    12  			err = errShortRead
    13  		}
    14  	}
    15  	return sz - n, err
    16  }
    17  
    18  func discardInt8(r *bufio.Reader, sz int) (int, error) {
    19  	return discardN(r, sz, 1)
    20  }
    21  
    22  func discardInt16(r *bufio.Reader, sz int) (int, error) {
    23  	return discardN(r, sz, 2)
    24  }
    25  
    26  func discardInt32(r *bufio.Reader, sz int) (int, error) {
    27  	return discardN(r, sz, 4)
    28  }
    29  
    30  func discardInt64(r *bufio.Reader, sz int) (int, error) {
    31  	return discardN(r, sz, 8)
    32  }
    33  
    34  func discardString(r *bufio.Reader, sz int) (int, error) {
    35  	return readStringWith(r, sz, func(r *bufio.Reader, sz int, n int) (int, error) {
    36  		if n < 0 {
    37  			return sz, nil
    38  		}
    39  		return discardN(r, sz, n)
    40  	})
    41  }
    42  
    43  func discardBytes(r *bufio.Reader, sz int) (int, error) {
    44  	return readBytesWith(r, sz, func(r *bufio.Reader, sz int, n int) (int, error) {
    45  		if n < 0 {
    46  			return sz, nil
    47  		}
    48  		return discardN(r, sz, n)
    49  	})
    50  }