IOTools.h

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/*---------------------------------------------------------------------\
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\---------------------------------------------------------------------*/
#ifndef ZYPP_BASE_IOTOOLS_H
#define ZYPP_BASE_IOTOOLS_H
 
#include <stdio.h>
#include <utility>
#include <string>
#include <zypp-core/base/Exception.h>
 
namespace zypp::io {
 
  enum class BlockingMode{
    FailedToSetMode = -1, 
    WasBlocking,          
    WasNonBlocking        
  };
 
  BlockingMode setFILEBlocking ( FILE *file, bool mode = true );
  BlockingMode setFDBlocking ( int fd, bool mode = true );
 
  bool writeAll ( int fd, void *buf, size_t size );
 
        enum class ReadAllResult {
                Error,
                Eof,
                Ok
        };
  ReadAllResult readAll ( int fd, void *buf, size_t size );
 
  class TimeoutException : public Exception
  {
  public:
    TimeoutException() : Exception( "Timeout Exception" )
    {}
    TimeoutException( const std::string & msg_r )
      : Exception( msg_r )
    {}
 
    virtual ~TimeoutException() noexcept override;
  };
 
  enum ReceiveUpToResult {
    Success,
    Timeout,
    EndOfFile,
    Error,
  };
 
  using timeout_type = size_t;
  static const timeout_type no_timeout = static_cast<timeout_type>(-1);
 
  std::pair<ReceiveUpToResult, std::string> receiveUpto( FILE * file, char c, timeout_type timeout, bool failOnUnblockError = true );
}
 
#endif