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
|
// *****************************************************************************
// * 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 "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);
using ErrorLog = std::vector<LogEntry>;
void logMsg(ErrorLog& log, const std::wstring& msg, MessageType type, time_t time = std::time(nullptr));
struct ErrorLogStats
{
int infos = 0;
int warnings = 0;
int errors = 0;
};
ErrorLogStats getStats(const ErrorLog& log);
//######################## implementation ##########################
inline
void logMsg(ErrorLog& log, const std::wstring& msg, MessageType type, time_t time)
{
log.push_back({time, type, utfTo<Zstringc>(msg)});
}
inline
ErrorLogStats getStats(const ErrorLog& log)
{
ErrorLogStats count;
for (const LogEntry& entry : log)
switch (entry.type)
{
case MSG_TYPE_INFO:
++count.infos;
break;
case MSG_TYPE_WARNING:
++count.warnings;
break;
case MSG_TYPE_ERROR:
++count.errors;
break;
}
assert(std::ssize(log) == count.infos + count.warnings + count.errors);
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>, "no worries about copying as long as we're using a ref-counted string!");
assert(msg == entry.message); //trimming shouldn't be needed usually!?
for (auto it = msg.begin(); it != msg.end(); )
if (*it == '\n')
{
msgFmt += *it++;
msgFmt.append(prefixLen, ' ');
//skip duplicate newlines
for (; it != msg.end() && *it == '\n'; ++it)
;
}
else
msgFmt += *it++;
msgFmt += '\n';
return msgFmt;
}
}
#endif //ERROR_LOG_H_8917590832147915
|
