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
143
144
145
146
147
148
149
150
151
|
/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by the
* Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "AppenderFile.h"
#include "Log.h"
#include "LogMessage.h"
#include "StringConvert.h"
#include "Timer.h"
#include <algorithm>
AppenderFile::AppenderFile(uint8 id, std::string const& name, LogLevel level, AppenderFlags flags, std::vector<std::string_view> const& args) :
Appender(id, name, level, flags),
logfile(nullptr),
_logDir(sLog->GetLogsDir()),
_maxFileSize(0),
_fileSize(0)
{
if (args.size() < 4)
{
throw InvalidAppenderArgsException(Acore::StringFormat("Log::CreateAppenderFromConfig: Missing file name for appender %s", name.c_str()));
}
_fileName.assign(args[3]);
std::string mode = "a";
if (4 < args.size())
{
mode.assign(args[4]);
}
if (flags & APPENDER_FLAGS_USE_TIMESTAMP)
{
size_t dot_pos = _fileName.find_last_of('.');
if (dot_pos != std::string::npos)
{
_fileName.insert(dot_pos, sLog->GetLogsTimestamp());
}
else
{
_fileName += sLog->GetLogsTimestamp();
}
}
if (5 < args.size())
{
if (Optional<uint32> size = Acore::StringTo<uint32>(args[5]))
{
_maxFileSize = *size;
}
else
{
throw InvalidAppenderArgsException(Acore::StringFormat("Log::CreateAppenderFromConfig: Invalid size '%s' for appender %s", std::string(args[5]).c_str(), name.c_str()));
}
}
_dynamicName = std::string::npos != _fileName.find("%s");
_backup = (flags & APPENDER_FLAGS_MAKE_FILE_BACKUP) != 0;
if (!_dynamicName)
{
logfile = OpenFile(_fileName, mode, (mode == "w") && _backup);
}
}
AppenderFile::~AppenderFile()
{
CloseFile();
}
void AppenderFile::_write(LogMessage const* message)
{
bool exceedMaxSize = _maxFileSize > 0 && (_fileSize.load() + message->Size()) > _maxFileSize;
if (_dynamicName)
{
char namebuf[ACORE_PATH_MAX];
snprintf(namebuf, ACORE_PATH_MAX, _fileName.c_str(), message->param1.c_str());
// always use "a" with dynamic name otherwise it could delete the log we wrote in last _write() call
FILE* file = OpenFile(namebuf, "a", _backup || exceedMaxSize);
if (!file)
{
return;
}
fprintf(file, "%s%s\n", message->prefix.c_str(), message->text.c_str());
fflush(file);
_fileSize += uint64(message->Size());
fclose(file);
return;
}
else if (exceedMaxSize)
{
logfile = OpenFile(_fileName, "w", true);
}
if (!logfile)
{
return;
}
fprintf(logfile, "%s%s\n", message->prefix.c_str(), message->text.c_str());
fflush(logfile);
_fileSize += uint64(message->Size());
}
FILE* AppenderFile::OpenFile(std::string const& filename, std::string const& mode, bool backup)
{
std::string fullName(_logDir + filename);
if (backup)
{
CloseFile();
std::string newName(fullName);
newName.push_back('.');
newName.append(LogMessage::getTimeStr(GetEpochTime()));
std::replace(newName.begin(), newName.end(), ':', '-');
rename(fullName.c_str(), newName.c_str()); // no error handling... if we couldn't make a backup, just ignore
}
if (FILE* ret = fopen(fullName.c_str(), mode.c_str()))
{
_fileSize = ftell(ret);
return ret;
}
return nullptr;
}
void AppenderFile::CloseFile()
{
if (logfile)
{
fclose(logfile);
logfile = nullptr;
}
}
|
