libzypp  17.7.0
Fd.cc
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1 /*---------------------------------------------------------------------\
2 | ____ _ __ __ ___ |
3 | |__ / \ / / . \ . \ |
4 | / / \ V /| _/ _/ |
5 | / /__ | | | | | | |
6 | /_____||_| |_| |_| |
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8 \---------------------------------------------------------------------*/
12 extern "C"
13 {
14 #include <sys/types.h>
15 #include <sys/stat.h>
16 #include <fcntl.h>
17 }
18 
19 #include <iostream>
20 
21 #include "zypp/base/Exception.h"
22 #include "zypp/base/Fd.h"
23 
25 namespace zypp
26 {
27  namespace base
29  {
30 
32  //
33  // METHOD NAME : Fd::Fd
34  // METHOD TYPE : Ctor
35  //
36  Fd::Fd( const Pathname & file_r, int open_flags, mode_t mode )
37  : m_fd( -1 )
38  {
39  m_fd = open( file_r.asString().c_str(), open_flags, mode );
40  if ( m_fd == -1 )
41  ZYPP_THROW_ERRNO_MSG( Exception, std::string("open ")+file_r.asString() );
42  }
43 
45  //
46  // METHOD NAME : Fd::close
47  // METHOD TYPE : void
48  //
49  void Fd::close()
50  {
51  if ( m_fd != -1 )
52  {
53  ::close( m_fd );
54  m_fd = -1;
55  }
56  }
57 
59  } // namespace base
62 } // namespace zypp
zypp::Exception
Base class for Exception.
Definition: Exception.h:145
zypp::base::Fd::m_fd
int m_fd
The filedescriptor.
Definition: Fd.h:83
ZYPP_THROW_ERRNO_MSG
#define ZYPP_THROW_ERRNO_MSG(EXCPTTYPE, MSG)
Throw Exception built from errno and a message string.
Definition: Exception.h:417
Fd.h
Exception.h
zypp::base::Fd::close
void close()
Explicitly close the file.
Definition: Fd.cc:49
zypp
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:1
zypp::filesystem::Pathname
Pathname.
Definition: Pathname.h:43
zypp::filesystem::Pathname::asString
const std::string & asString() const
String representation.
Definition: Pathname.h:90
zypp::base::Fd::Fd
Fd(const Pathname &file_r, int open_flags, mode_t mode=0)
Ctor opens file.
Definition: Fd.cc:36