summaryrefslogtreecommitdiff
path: root/ace/Log_Msg_UNIX_Syslog.cpp
blob: 7c7af9bbeb5ea98cb81133226f2879abddf2380e (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
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
// $Id$

#include "ace/config-all.h"

#if !defined (ACE_WIN32) && !defined (ACE_LACKS_UNIX_SYSLOG)

#include "ace/ACE.h"
#include "ace/Log_Msg.h"
#include "ace/Log_Msg_UNIX_Syslog.h"
#include "ace/Log_Record.h"

// NOTE:
//   The ACE_Log_Msg_UNIX_Syslog class can use the openlog(),
//   setlogmask(), syslog() and closelog() routines in a thread safe
//   manner (versus using openlog_r(), et. al.), as the ACE_Log_Msg
//   class uses the lock provided by its local ACE_Log_Msg_Manager
//   class when calling the methods of the backend classes.  As a
//   result, logging semantics with respect to the UNIX syslog
//   facility, will be the same for all threads in a process.  This
//   should not be too limiting, as the ACE_Log_Msg class itself can
//   be used to control thread specific logging behavior.

ACE_Log_Msg_UNIX_Syslog::ACE_Log_Msg_UNIX_Syslog (void)
{
}

ACE_Log_Msg_UNIX_Syslog::~ACE_Log_Msg_UNIX_Syslog (void)
{
  (void) this->close ();
}

int
ACE_Log_Msg_UNIX_Syslog::open (const ACE_TCHAR * logger_key)
{
  if (logger_key == 0)
    logger_key = ACE_Log_Msg::program_name ();

  // Initialize the UNIX syslog facility.  Default the syslog log
  // options LOG_CONS and LOG_PID to be set.  There really should be a
  // logging strategy option to control the syslog log options,
  // however, we'll take the easy way out for now.
  openlog (ACE_const_cast (char *, logger_key),
           LOG_CONS|LOG_PID,
           ACE_DEFAULT_SYSLOG_FACILITY);

  // Enable logging of all syslog priorities.  If logging of all
  // priorities is not desired, use the ACE_Log_Msg::priority_mask()
  // method to control the log output sent to the syslog daemon via
  // the log() method, or use the system's syslog.conf file to select
  // desired level of information.

#if !defined (ACE_LACKS_SETLOGMASK)
  (void) setlogmask (LOG_UPTO (LOG_DEBUG));
#endif /* ACE_LACKS_SETLOGMASK */

  return 0;
}

int
ACE_Log_Msg_UNIX_Syslog::reset (void)
{
  return this->close ();
}

int
ACE_Log_Msg_UNIX_Syslog::close (void)
{
  closelog();
  return 0;
}

int
ACE_Log_Msg_UNIX_Syslog::log (ACE_Log_Record &log_record)
{
  int syslog_priority = this->convert_log_priority (log_record.type ());
  int flags = ACE_LOG_MSG->flags ();

  // The UNIX syslog() facility does not support multi-line messages.
  // Break up the message data into separate lines and send each line
  // to the syslog daemon.

  ACE_TCHAR message[ACE_Log_Record::MAXVERBOSELOGMSGLEN];
  ACE_OS::strcpy (message, log_record.msg_data ());
  ACE_TCHAR *strtokp;

  for (ACE_TCHAR *line = ACE_OS_String::strtok_r (message,
                                                  ACE_LIB_TEXT ("\n"),
                                                  &strtokp);
       line != 0;
       line = ACE_OS_String::strtok_r (0,
                                       ACE_LIB_TEXT ("\n"),
                                       &strtokp))
    {
      // Format the message line.  Note that the processing for
      // VERBOSE is the same as for VERBOSE_LITE, since syslog()
      // already provides us with the hostname and PID.  However, the
      // timestamp is duplicated (albeit a shortened version) to
      // provide a timestamp with greater precision than that provided
      // by syslog().
      if (ACE_BIT_ENABLED (flags, ACE_Log_Msg::VERBOSE)
          || ACE_BIT_ENABLED (flags, ACE_Log_Msg::VERBOSE_LITE))
        {
          ACE_TCHAR date_and_time[35];
          syslog (syslog_priority,
                  ACE_LIB_TEXT ("%s: %s: %s"),
                  ACE::timestamp (date_and_time, sizeof (date_and_time), 1),
                  ACE_Log_Record::priority_name (ACE_Log_Priority(log_record.type ())),
                  line);
        }
      else // No formatting required.
        syslog (syslog_priority, ACE_LIB_TEXT ("%s"), line);
    }

  return 0;
}

int
ACE_Log_Msg_UNIX_Syslog::convert_log_priority (int lm_priority)
{
  int syslog_priority;
  switch (lm_priority)
  {
  case LM_TRACE:
  case LM_DEBUG:
    syslog_priority = LOG_DEBUG;
    break;
  case LM_STARTUP:
  case LM_SHUTDOWN:
  case LM_INFO:
    syslog_priority = LOG_INFO;
    break;
  case LM_NOTICE:
    syslog_priority = LOG_NOTICE;
    break;
  case LM_WARNING:
    syslog_priority = LOG_WARNING;
    break;
  case LM_CRITICAL:
    syslog_priority = LOG_CRIT;
    break;
  case LM_ALERT:
    syslog_priority = LOG_ALERT;
    break;
  case LM_EMERGENCY:
    syslog_priority = LOG_EMERG;
    break;
  case LM_ERROR:
  default:
    syslog_priority = LOG_ERR;
    break;
  }

  return syslog_priority;
}

int
ACE_Log_Msg_UNIX_Syslog::convert_log_mask (int lm_mask)
{
  int syslog_mask = 0;

  if (ACE_BIT_ENABLED (lm_mask, LM_TRACE)
      || ACE_BIT_ENABLED (lm_mask, LM_DEBUG))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_DEBUG));

  if (ACE_BIT_ENABLED (lm_mask, LM_STARTUP)
      || ACE_BIT_ENABLED (lm_mask, LM_SHUTDOWN)
      || ACE_BIT_ENABLED (lm_mask, LM_INFO))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_INFO));

  if (ACE_BIT_ENABLED (lm_mask, LM_NOTICE))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_NOTICE));

  if (ACE_BIT_ENABLED (lm_mask, LM_ERROR))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_ERR));

  if (ACE_BIT_ENABLED (lm_mask, LM_WARNING))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_WARNING));

  if (ACE_BIT_ENABLED (lm_mask, LM_CRITICAL))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_CRIT));

  if (ACE_BIT_ENABLED (lm_mask, LM_ALERT))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_ALERT));

  if (ACE_BIT_ENABLED (lm_mask, LM_EMERGENCY))
    ACE_SET_BITS (syslog_mask, LOG_MASK(LOG_EMERG));

  return syslog_mask;
}

#endif /* !defined (ACE_WIN32) && !defined (ACE_LACKS_UNIX_SYSLOG) */