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28 
29 #include <stdlib.h>
30 #include <string.h>
31 #include <fstream>
32 #include "simplefile.h"
33 
34 class SimpleFile_p
35 {
36 public:
SimpleFile_p(const char * filename)37     SimpleFile_p(const char* filename) : m_descriptor(nullptr), m_size(0)
38     {
39         m_filename = strdup(filename);
40     }
41 
~SimpleFile_p()42     ~SimpleFile_p()
43     {
44         free(m_filename);
45     }
46 
47     char* m_filename;
48     FILE* m_descriptor;
49     long m_size;
50 };
51 
SimpleFile(const char * filename)52 SimpleFile::SimpleFile(const char* filename)
53 {
54     p = new SimpleFile_p(filename);
55 }
56 
~SimpleFile()57 SimpleFile::~SimpleFile()
58 {
59     close();
60     delete p;
61 }
62 
filename()63 const char* SimpleFile::filename()
64 {
65     return p->m_filename;
66 }
67 
size()68 long SimpleFile::size()
69 {
70     return p->m_size;
71 }
72 
73 bool
open()74 SimpleFile::open()
75 {
76     if ((p->m_descriptor = fopen(p->m_filename, "rb")) == nullptr)
77         return false;
78 
79     fseek(p->m_descriptor, 0, SEEK_END);
80     p->m_size = ftell(p->m_descriptor);
81     rewind(p->m_descriptor);
82 
83     return true;
84 }
85 
86 void
close()87 SimpleFile::close()
88 {
89     if (p->m_descriptor) {
90         fclose(p->m_descriptor);
91         p->m_descriptor = nullptr;
92     }
93 }
94 
95 bool
exists() const96 SimpleFile::exists() const
97 {
98     std::ifstream ifile(p->m_filename);
99     return !ifile.fail();
100 }
101 
102 bool
exists(const char * filename)103 SimpleFile::exists(const char* filename)
104 {
105     std::ifstream ifile(filename);
106     return !ifile.fail();
107 }
108 
109