GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/util/pointer.h
Date: 2026-04-05 02:35:23
Exec Total Coverage
Lines: 34 34 100.0%
Branches: 7 8 87.5%
Line Branch Exec Source
1 /**
2 * This file is part of the CernVM File System.
3 */
4
5 #ifndef CVMFS_UTIL_POINTER_H_
6 #define CVMFS_UTIL_POINTER_H_
7
8 #include <cstdlib>
9
10 #include "util/single_copy.h"
11
12 #ifdef CVMFS_NAMESPACE_GUARD
13 namespace CVMFS_NAMESPACE_GUARD {
14 #endif
15
16 /**
17 * Type Trait:
18 * "Static" assertion that a template parameter is a pointer
19 */
20 template<typename T>
21 struct IsPointer {
22 static const bool value = false;
23 };
24 template<typename T>
25 struct IsPointer<T *> {
26 static const bool value = true;
27 };
28
29
30 template<class T, class DerivedT>
31 class UniquePtrBase : SingleCopy {
32 public:
33 inline UniquePtrBase() : ref_(NULL) { }
34 5325225 inline explicit UniquePtrBase(T *ref) : ref_(ref) { }
35 2986951 inline ~UniquePtrBase() { Free(); }
36
37 32402651 inline T *operator->() const { return ref_; }
38 // NOLINTNEXTLINE(misc-unconventional-assign-operator)
39 1172205 inline DerivedT &operator=(T *ref) {
40
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 1172205 if (ref_ != ref) {
41 1162469 Free();
42 1162173 ref_ = ref;
43 }
44 1171909 return *(static_cast<DerivedT *>(this));
45 }
46 8246735 inline T *weak_ref() const { return ref_; }
47 3384379 inline bool IsValid() const { return (ref_ != NULL); }
48 366659 inline T *Release() {
49 371306 T *r = ref_;
50 371306 ref_ = NULL;
51 371306 return r;
52 }
53 1031682 inline void Destroy() {
54 1031682 Free();
55 1032562 ref_ = NULL;
56 1032562 }
57
58 protected:
59 9519905 void Free() { static_cast<DerivedT *>(this)->Free(); }
60 T *ref_;
61 };
62
63
64 template<class T>
65 class UniquePtr : public UniquePtrBase<T, UniquePtr<T> > {
66 friend class UniquePtrBase<T, UniquePtr<T> >;
67
68 private:
69 typedef UniquePtrBase<T, UniquePtr<T> > BaseT;
70
71 public:
72 using BaseT::operator=;
73 196655 inline UniquePtr() : BaseT(NULL) { }
74 4040017 inline explicit UniquePtr(T *ref) : BaseT(ref) { }
75 300605 inline T &operator*() const { return *BaseT::ref_; }
76
77 protected:
78
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 6521667 void Free() { delete BaseT::ref_; }
79 };
80
81
82 template<>
83 class UniquePtr<void> : public UniquePtrBase<void, UniquePtr<void> > {
84 private:
85 typedef UniquePtrBase<void, UniquePtr<void> > BaseT;
86
87 public:
88 friend class UniquePtrBase<void, UniquePtr<void> >;
89 using BaseT::operator=;
90 4 inline UniquePtr() : BaseT(NULL) { }
91 55 inline explicit UniquePtr(void *ref) : BaseT(ref) { }
92
93 protected:
94 56 void Free() {
95
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 56 if (IsValid()) {
96 52 free(BaseT::ref_);
97 }
98 56 }
99 };
100
101 template<>
102 class UniquePtr<unsigned char>
103 : public UniquePtrBase<unsigned char, UniquePtr<unsigned char> > {
104 private:
105 typedef UniquePtrBase<unsigned char, UniquePtr<unsigned char> > BaseT;
106
107 public:
108 friend class UniquePtrBase<unsigned char, UniquePtr<unsigned char> >;
109 using BaseT::operator=;
110 inline UniquePtr() : BaseT(NULL) { }
111 94 inline explicit UniquePtr(unsigned char *ref) : BaseT(ref) { }
112
113 protected:
114 94 void Free() {
115
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 94 if (IsValid()) {
116 94 free(BaseT::ref_);
117 }
118 94 }
119 };
120
121
122 #ifdef CVMFS_NAMESPACE_GUARD
123 } // namespace CVMFS_NAMESPACE_GUARD
124 #endif
125
126 #endif // CVMFS_UTIL_POINTER_H_
127