blob: 08c7b5b277843e4b6c3204f48070a6479678827f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
#include "bytesizeparser.h"
#include <iostream>
#include <stdexcept>
static std::size_t suffixToSize(const char& suffix)
{
int size = 1;
switch(suffix)
{
case 'k':
size <<= 10;
break;
case 'M':
size <<= 20;
break;
case 'G':
size <<= 30;
break;
default:
size = 0;
break;
}
return size;
}
std::size_t byteSizeParser(const std::string& argument)
{
std::string::size_type suffix_index;
std::size_t size;
std::string suffix;
bool error = false;
if(argument.find('-') != std::string::npos)
{
error = true;
}
try
{
size = std::stoi(argument, &suffix_index);
}
catch(std::invalid_argument&)
{
std::cerr << "Invalid argument for diskstreamsize" << std::endl;
error = true;
}
catch(std::out_of_range&)
{
std::cerr << "Number too big. Try using bigger suffix for diskstreamsize" << std::endl;
error = true;
}
if(!error)
{
suffix = argument.substr(suffix_index);
if (suffix.length() > 1)
{
error = true;
}
}
if(!error && suffix.size() > 0)
{
std::size_t suffix_size = suffixToSize(suffix[0]);
size *= suffix_size;
}
if(error)
{
return 0;
}
return size;
}
|