mono/utils/mono-logger.c

   1 #include <string.h>
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4 #include <glib.h>
   5
   6 #include "mono-compiler.h"
   7 #include "mono-logger.h"
   8
   9 typedef struct {
  10         GLogLevelFlags  level;
  11         MonoTraceMask   mask;
  12 } MonoLogLevelEntry;
  13
  14 static GLogLevelFlags current_level             = G_LOG_LEVEL_ERROR;
  15 static MonoTraceMask current_mask               = MONO_TRACE_ALL;
  16
  17 static const char       *mono_log_domain        = "Mono";
  18 static GQueue           *level_stack            = NULL;
  19
  20 /**
  21  * mono_trace_init:
  22  *
  23  * Initializes the mono tracer.
  24  */
  25 static void
  26 mono_trace_init (void)
  27 {
  28         if(level_stack == NULL) {
  29                 level_stack = g_queue_new();
  30
  31                 mono_trace_set_mask_string(getenv("MONO_LOG_MASK"));
  32                 mono_trace_set_level_string(getenv("MONO_LOG_LEVEL"));
  33         }
  34 }
  35
  36 /**
  37  * mono_trace_cleanup:
  38  *
  39  * Releases the mono tracer.
  40  */
  41 void
  42 mono_trace_cleanup (void)
  43 {
  44         if(level_stack != NULL) {
  45                 while(!g_queue_is_empty (level_stack)) {
  46                         g_free (g_queue_pop_head (level_stack));
  47                 }
  48
  49                 g_queue_free (level_stack);
  50                 level_stack = NULL;
  51         }
  52 }
  53
  54 /**
  55  * mono_trace:
  56  *
  57  *      @level: Verbose level of the specified message
  58  *      @mask: Type of the specified message
  59  *
  60  * Traces a new message, depending on the current logging level
  61  * and trace mask.
  62  */
  63 void
  64 mono_trace(GLogLevelFlags level, MonoTraceMask mask, const char *format, ...)
  65 {
  66         if(level_stack == NULL)
  67                 mono_trace_init();
  68
  69         if(level <= current_level && mask & current_mask) {
  70                 va_list args;
  71                 va_start (args, format);
  72                 g_logv (mono_log_domain, level, format, args);
  73                 va_end (args);
  74         }
  75 }
  76
  77 /**
  78  * mono_tracev:
  79  *
  80  *      @level: Verbose level of the specified message
  81  *      @mask: Type of the specified message
  82  *
  83  * Traces a new message, depending on the current logging level
  84  * and trace mask.
  85  */
  86 void
  87 mono_tracev (GLogLevelFlags level, MonoTraceMask mask, const char *format, va_list args)
  88 {
  89         if (level_stack == NULL)
  90                 mono_trace_init ();
  91
  92         if(level <= current_level && mask & current_mask)
  93                 g_logv (mono_log_domain, level, format, args);
  94 }
  95
  96 /**
  97  * mono_trace_set_level:
  98  *
  99  *      @level: Verbose level to set
 100  *
 101  * Sets the current logging level. Every subsequent call to
 102  * mono_trace will check the visibility of a message against this
 103  * value.
 104  */
 105 void
 106 mono_trace_set_level (GLogLevelFlags level)
 107 {
 108         if(level_stack == NULL)
 109                 mono_trace_init();
 110
 111         current_level = level;
 112 }
 113
 114 /**
 115  * mono_trace_set_mask:
 116  *
 117  *      @mask: Mask of visible message types.
 118  *
 119  * Sets the current logging level. Every subsequent call to
 120  * mono_trace will check the visibility of a message against this
 121  * value.
 122  */
 123 void
 124 mono_trace_set_mask (MonoTraceMask mask)
 125 {
 126         if(level_stack == NULL)
 127                 mono_trace_init();
 128
 129         current_mask    = mask;
 130 }
 131
 132 /**
 133  * mono_trace_push:
 134  *
 135  *      @level: Verbose level to set
 136  *      @mask: Mask of visible message types.
 137  *
 138  * Saves the current values of level and mask then calls mono_trace_set
 139  * with the specified new values.
 140  */
 141 void
 142 mono_trace_push (GLogLevelFlags level, MonoTraceMask mask)
 143 {
 144         if(level_stack == NULL)
 145                 g_error("%s: cannot use mono_trace_push without calling mono_trace_init first.", __func__);
 146         else {
 147                 MonoLogLevelEntry *entry = g_malloc(sizeof(MonoLogLevelEntry));
 148                 entry->level    = current_level;
 149                 entry->mask             = current_mask;
 150
 151                 g_queue_push_head (level_stack, (gpointer)entry);
 152
 153                 /* Set the new level and mask
 154                  */
 155                 current_level = level;
 156                 current_mask  = mask;
 157         }
 158 }
 159
 160 /**
 161  * mono_trace_pop:
 162  *
 163  * Restores level and mask values saved from a previous call to mono_trace_push.
 164  */
 165 void
 166 mono_trace_pop (void)
 167 {
 168         if(level_stack == NULL)
 169                 g_error("%s: cannot use mono_trace_pop without calling mono_trace_init first.", __func__);
 170         else {
 171                 if(!g_queue_is_empty (level_stack)) {
 172                         MonoLogLevelEntry *entry = (MonoLogLevelEntry*)g_queue_pop_head (level_stack);
 173
 174                         /*      Restore previous level and mask
 175                          */
 176                         current_level = entry->level;
 177                         current_mask  = entry->mask;
 178
 179                         g_free (entry);
 180                 }
 181         }
 182 }
 183
 184
 185 void
 186 mono_trace_set_level_string (const char *value)
 187 {
 188         int i = 0;
 189         const char *valid_vals[] = {"error", "critical", "warning", "message", "info", "debug", NULL};
 190         const GLogLevelFlags valid_ids[] = {G_LOG_LEVEL_ERROR, G_LOG_LEVEL_CRITICAL, G_LOG_LEVEL_WARNING,
 191                                                                                 G_LOG_LEVEL_MESSAGE, G_LOG_LEVEL_INFO, G_LOG_LEVEL_DEBUG };
 192
 193         if(!value)
 194                 return;
 195
 196         while(valid_vals[i]) {
 197                 if(!strcmp(valid_vals[i], value)){
 198                         mono_trace_set_level(valid_ids[i]);
 199                         return;
 200                 }
 201                 i++;
 202         }
 203
 204         if(*value)
 205                 g_print("Unknown trace loglevel: %s\n", value);
 206 }
 207
 208 void
 209 mono_trace_set_mask_string (char *value)
 210 {
 211         int i;
 212         char *tok;
 213         guint32 flags = 0;
 214
 215         const char *valid_flags[] = {"asm", "type", "dll", "gc", "cfg", "aot", "all", NULL};
 216         const MonoTraceMask     valid_masks[] = {MONO_TRACE_ASSEMBLY, MONO_TRACE_TYPE, MONO_TRACE_DLLIMPORT,
 217                                                  MONO_TRACE_GC, MONO_TRACE_CONFIG, MONO_TRACE_AOT, MONO_TRACE_ALL };
 218
 219         if(!value)
 220                 return;
 221
 222         tok     = strtok (value, ",");
 223
 224         if(!tok)
 225                 tok = value;
 226
 227         while (tok) {
 228                 for (i = 0; valid_flags[i]; i++) {
 229                         if (strcmp (tok, valid_flags[i]) == 0) {
 230                                 flags |= valid_masks[i];
 231                                 break;
 232                         }
 233                 }
 234                 if (!valid_flags[i])
 235                         g_print("Unknown trace flag: %s\n", tok);
 236
 237                 tok = strtok (NULL, ",");
 238         }
 239
 240         if(flags)
 241                 mono_trace_set_mask (flags);
 242 }
 243
 244 /*
 245  * mono_trace_is_traced:
 246  *
 247  *   Returns whenever a message with @level and @mask will be printed or not.
 248  */
 249 gboolean
 250 mono_trace_is_traced (GLogLevelFlags level, MonoTraceMask mask)
 251 {
 252         return (level <= current_level && mask & current_mask);
 253 }