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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "LogBackend.hxx"
#include "Log.hxx"
#include "util/Domain.hxx"
#include "util/StringUtil.hxx"
#include <assert.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_SYSLOG
#include <syslog.h>
#endif
#ifdef ANDROID
#include <android/log.h>
static int
ToAndroidLogLevel(LogLevel log_level)
{
switch (log_level) {
case LogLevel::DEBUG:
return ANDROID_LOG_DEBUG;
case LogLevel::INFO:
case LogLevel::DEFAULT:
return ANDROID_LOG_INFO;
case LogLevel::WARNING:
return ANDROID_LOG_WARN;
case LogLevel::ERROR:
return ANDROID_LOG_ERROR;
}
assert(false);
gcc_unreachable();
}
#else
static LogLevel log_threshold = LogLevel::INFO;
static bool enable_timestamp;
#ifdef HAVE_SYSLOG
static bool enable_syslog;
#endif
void
SetLogThreshold(LogLevel _threshold)
{
log_threshold = _threshold;
}
void
EnableLogTimestamp()
{
#ifdef HAVE_SYSLOG
assert(!enable_syslog);
#endif
assert(!enable_timestamp);
enable_timestamp = true;
}
static const char *log_date(void)
{
static constexpr size_t LOG_DATE_BUF_SIZE = 16;
static char buf[LOG_DATE_BUF_SIZE];
time_t t = time(nullptr);
strftime(buf, LOG_DATE_BUF_SIZE, "%b %d %H:%M : ", localtime(&t));
return buf;
}
/**
* Determines the length of the string excluding trailing whitespace
* characters.
*/
static int
chomp_length(const char *p)
{
size_t length = strlen(p);
return StripRight(p, length);
}
#ifdef HAVE_SYSLOG
static int
ToSysLogLevel(LogLevel log_level)
{
switch (log_level) {
case LogLevel::DEBUG:
return LOG_DEBUG;
case LogLevel::INFO:
return LOG_INFO;
case LogLevel::DEFAULT:
return LOG_NOTICE;
case LogLevel::WARNING:
return LOG_WARNING;
case LogLevel::ERROR:
return LOG_ERR;
}
assert(false);
gcc_unreachable();
}
static void
SysLog(const Domain &domain, LogLevel log_level, const char *message)
{
syslog(ToSysLogLevel(log_level), "%s: %.*s",
domain.GetName(),
chomp_length(message), message);
}
void
LogInitSysLog()
{
openlog(PACKAGE, 0, LOG_DAEMON);
enable_syslog = true;
}
void
LogFinishSysLog()
{
if (enable_syslog)
closelog();
}
#endif
static void
FileLog(const Domain &domain, const char *message)
{
fprintf(stderr, "%s%s: %.*s\n",
enable_timestamp ? log_date() : "",
domain.GetName(),
chomp_length(message), message);
#ifdef WIN32
/* force-flush the log file, because setvbuf() does not seem
to have an effect on WIN32 */
fflush(stderr);
#endif
}
#endif /* !ANDROID */
void
Log(const Domain &domain, LogLevel level, const char *msg)
{
#ifdef ANDROID
__android_log_print(ToAndroidLogLevel(level), "MPD",
"%s: %s", domain.GetName(), msg);
#else
if (level < log_threshold)
return;
#ifdef HAVE_SYSLOG
if (enable_syslog) {
SysLog(domain, level, msg);
return;
}
#endif
FileLog(domain, msg);
#endif /* !ANDROID */
}
|
