LeechCraft  0.6.70-13729-g7046a9d2a7
Modular cross-platform feature rich live environment.
fdguard.cpp
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30 
31 #include "fdguard.h"
32 
33 #include <fcntl.h>
34 #include <unistd.h>
35 
36 namespace LC
37 {
38 namespace Util
39 {
40  FDGuard::FDGuard (const char *file, int mode)
41  : FD_ { open (file, mode) }
42  {
43  }
44 
46  : FD_ { other.FD_ }
47  {
48  other.FD_ = -1;
49  }
50 
52  {
53  swap (*this, other);
54 
55  return *this;
56  }
57 
59  {
60  if (FD_ >= 0)
61  close (FD_);
62  }
63 
64  FDGuard::operator bool () const
65  {
66  return FD_ >= 0;
67  }
68 
69  FDGuard::operator int () const
70  {
71  return FD_;
72  }
73 
74  void swap (FDGuard& g1, FDGuard& g2)
75  {
76  std::swap (g1.FD_, g2.FD_);
77  }
78 }
79 }
FDGuard & operator=(const FDGuard &)=delete
void swap(FDGuard &g1, FDGuard &g2)
Definition: fdguard.cpp:74
FDGuard(const char *file, int mode)
Definition: fdguard.cpp:40
friend void swap(FDGuard &g1, FDGuard &g2)
Definition: fdguard.cpp:74
Definition: constants.h:35