FWStorage/StorageFactory/interface/IOBuffer.h - master - githubmirror/cmssw

FWStorage/StorageFactory/interface/IOBuffer.h

38 строк1 KB

Chris Jones

Move Utilities/StorageFactory to FWStorage/StorageFactory

10 дек 2025, 18:12

10 дек 2025, 18:12852ff34

#ifndef STORAGE_FACTORY_IO_BUFFER_H
#define STORAGE_FACTORY_IO_BUFFER_H

#include "FWStorage/StorageFactory/interface/IOTypes.h"

namespace edm::storage {

  /** Buffer for I/O operations. */
  class IOBuffer {
  public:
    IOBuffer();
    IOBuffer(void *data, IOSize length);
    IOBuffer(const void *data, IOSize length);

    void *data() const;
    IOSize size() const;

  private:
    void *m_data;     //< Data
    IOSize m_length;  //< Length of data in bytes.
  };

  /** Construct a null I/O buffer.  */
  inline IOBuffer::IOBuffer(void) : m_data(nullptr), m_length(0) {}

  /** Construct a I/O buffer for reading.  */
  inline IOBuffer::IOBuffer(void *data, IOSize length) : m_data(data), m_length(length) {}

  /** Construct a I/O buffer for writing.  */
  inline IOBuffer::IOBuffer(const void *data, IOSize length) : m_data(const_cast<void *>(data)), m_length(length) {}

  /** Return a pointer to the beginning of the buffer's data area.  */
  inline void *IOBuffer::data(void) const { return m_data; }

  /** Return the buffer's size.  */
  inline IOSize IOBuffer::size(void) const { return m_length; }
}  // namespace edm::storage
#endif  // STORAGE_FACTORY_IO_BUFFER_H