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annotate src/log.c @ 500:614a3177b15c noffle tip

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author Jim Hague <jim.hague@acm.org>
date Wed, 14 Aug 2013 12:04:39 +0100
parents de7f674d1224
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 log.c
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3
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4 $Id: log.c 607 2003-07-23 09:26:49Z bears $
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5 */
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6
45
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7 #if HAVE_CONFIG_H
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8 #include <config.h>
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9 #endif
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10
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11 #include <syslog.h>
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12 #include <stdarg.h>
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13 #include "common.h"
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14 #include "lock.h"
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15 #include "log.h"
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16 #include "portable.h"
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18 #define MAXLENGTH 240
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19
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20 #define DEFAULT_DBG_MASK LOG_DBG_NONE
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22 static struct
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23 {
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24 Bool interactive;
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25 unsigned debugMask;
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26 } logSetting = { FALSE, DEFAULT_DBG_MASK };
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28 void
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29 Log_init( const char *name, Bool interactive, int facility )
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30 {
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31 int option = LOG_PID | LOG_CONS;
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33 logSetting.interactive = interactive;
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34 openlog( name, option, facility );
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35 }
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36
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37 #define DO_LOG( LEVEL ) \
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38 va_list ap; \
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39 Str t; \
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40 \
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41 va_start( ap, fmt ); \
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42 vsnprintf( t, MAXCHAR, fmt, ap ); \
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43 if ( MAXLENGTH < MAXCHAR ) \
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44 t[ MAXLENGTH ] = '\0'; \
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45 syslog( LEVEL, "%s", t ); \
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46 if ( logSetting.interactive ) \
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47 fprintf( stderr, "%s\n", t ); \
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48 va_end( ap );
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49
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50 void
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51 Log_inf( const char *fmt, ... )
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52 {
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53 DO_LOG( LOG_INFO );
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54 }
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55
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56 void
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57 Log_err( const char *fmt, ... )
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58 {
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59 DO_LOG( LOG_ERR );
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60 }
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61
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62 /* Ensure the condition "cond" is true; otherwise log an error and return 1 */
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63 int
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64 Log_check(int cond, const char *fmt, ... )
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65 {
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66 if (!cond) {
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67 DO_LOG( LOG_ERR );
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68 return 1;
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69 }
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70 return 0;
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71 }
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72
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73 void
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74 Log_ntc( const char *fmt, ... )
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75 {
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76 DO_LOG( LOG_NOTICE );
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77 }
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78
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79 void
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80 Log_dbg( unsigned subsystem, const char *fmt, ... )
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81 {
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82 if ( ( subsystem & logSetting.debugMask ) != 0 ) {
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83 DO_LOG( LOG_DEBUG );
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84 }
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85 }
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86
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87 void
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88 Log_setDbgMask( unsigned mask )
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89 {
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90 /* A non-zero mask always include Noffle logs */
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91 if ( mask != 0 )
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92 mask |= LOG_DBG_NOFFLE;
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93
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94 logSetting.debugMask = mask;
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95 }
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96
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97 /*
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98 * A fatal error. Log it, close down as much as possible and
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99 * exit with EXIT_FAILURE.
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100 */
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101 void
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102 Log_fatal( const char *fmt, ... )
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103 {
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104 DO_LOG( LOG_ERR );
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105 exit( EXIT_FAILURE );
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106 /* NOTREACHED */
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107 }
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108
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109 /* Fatal error function for gdbm */
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110 void
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111 Log_gdbm_fatal( const char *msg )
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112 {
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113 Log_fatal( "gdbm: %s", msg );
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114 /* NOTREACHED */
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115 }
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116
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117