blob: a24dfe5aed78086db18d7dd6798bb35e38d74dad (
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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// *****************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
// *****************************************************************************
#ifndef ERROR_LOG_H_8917590832147915
#define ERROR_LOG_H_8917590832147915
#include <cassert>
#include <vector>
#include "time.h"
#include "i18n.h"
#include "utf.h"
#include "zstring.h"
namespace zen
{
enum MessageType
{
MSG_TYPE_INFO = 0x1,
MSG_TYPE_WARNING = 0x2,
MSG_TYPE_ERROR = 0x4,
};
struct LogEntry
{
time_t time = 0;
MessageType type = MSG_TYPE_ERROR;
Zstringc message; //conserve memory (=> avoid std::string SSO overhead!)
};
std::string formatMessage(const LogEntry& entry);
class ErrorLog
{
public:
void logMsg(const std::wstring& msg, MessageType type);
struct Stats
{
int info = 0;
int warning = 0;
int error = 0;
};
Stats getStats() const;
//subset of std::vector<> interface:
using const_iterator = std::vector<LogEntry>::const_iterator;
const_iterator begin() const { return entries_.begin(); }
const_iterator end () const { return entries_.end (); }
bool empty() const { return entries_.empty(); }
private:
std::vector<LogEntry> entries_;
};
//######################## implementation ##########################
inline
void ErrorLog::logMsg(const std::wstring& msg, MessageType type)
{
entries_.push_back({std::time(nullptr), type, utfTo<Zstringc>(msg)});
}
inline
ErrorLog::Stats ErrorLog::getStats() const
{
Stats count;
for (const LogEntry& entry : entries_)
switch (entry.type)
{
case MSG_TYPE_INFO:
++count.info;
break;
case MSG_TYPE_WARNING:
++count.warning;
break;
case MSG_TYPE_ERROR:
++count.error;
break;
}
assert(std::ssize(entries_) == count.info + count.warning + count.error);
return count;
}
inline
std::wstring getMessageTypeLabel(MessageType type)
{
switch (type)
{
case MSG_TYPE_INFO:
return _("Info");
case MSG_TYPE_WARNING:
return _("Warning");
case MSG_TYPE_ERROR:
return _("Error");
}
assert(false);
return std::wstring();
}
inline
std::string formatMessage(const LogEntry& entry)
{
std::string msgFmt = '[' + utfTo<std::string>(formatTime(formatTimeTag, getLocalTime(entry.time))) + "] " + utfTo<std::string>(getMessageTypeLabel(entry.type)) + ": ";
const size_t prefixLen = unicodeLength(msgFmt); //consider Unicode!
const Zstringc msg = trimCpy(entry.message);
static_assert(std::is_same_v<decltype(msg), const Zstringc>, "don't worry about copying as long as we're using a ref-counted string!");
for (auto it = msg.begin(); it != msg.end(); )
if (*it == '\n')
{
msgFmt += '\n';
msgFmt.append(prefixLen, ' ');
++it;
//skip duplicate newlines
for (; it != msg.end() && *it == '\n'; ++it)
;
}
else
msgFmt += *it++;
msgFmt += '\n';
return msgFmt;
}
}
#endif //ERROR_LOG_H_8917590832147915
|
