src/bin/lttng/loglevel.c

   1 /*
   2  * Copyright (C) 2021 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-only
   5  *
   6  */
   7
   8 #include "loglevel.h"
   9 #include <string.h>
  10 #include <strings.h>
  11 #include <ctype.h>
  12 #include <assert.h>
  13
  14 struct loglevel_name_value {
  15         const char *name;
  16         int value;
  17 };
  18
  19 static
  20 const struct loglevel_name_value loglevel_values[] = {
  21         { .name = "EMERG", .value = LTTNG_LOGLEVEL_EMERG },
  22         { .name = "TRACE_EMERG", .value = LTTNG_LOGLEVEL_EMERG },
  23         { .name = "ALERT", .value = LTTNG_LOGLEVEL_ALERT },
  24         { .name = "TRACE_ALERT", .value = LTTNG_LOGLEVEL_ALERT },
  25         { .name = "CRIT", .value = LTTNG_LOGLEVEL_CRIT },
  26         { .name = "TRACE_CRIT", .value = LTTNG_LOGLEVEL_CRIT },
  27         { .name = "ERR", .value = LTTNG_LOGLEVEL_ERR },
  28         { .name = "TRACE_ERR", .value = LTTNG_LOGLEVEL_ERR },
  29         { .name = "WARNING", .value = LTTNG_LOGLEVEL_WARNING },
  30         { .name = "TRACE_WARNING", .value = LTTNG_LOGLEVEL_WARNING },
  31         { .name = "NOTICE", .value = LTTNG_LOGLEVEL_NOTICE },
  32         { .name = "TRACE_NOTICE", .value = LTTNG_LOGLEVEL_NOTICE },
  33         { .name = "INFO", .value = LTTNG_LOGLEVEL_INFO },
  34         { .name = "TRACE_INFO", .value = LTTNG_LOGLEVEL_INFO },
  35         { .name = "DEBUG_SYSTEM", .value = LTTNG_LOGLEVEL_DEBUG_SYSTEM },
  36         { .name = "TRACE_DEBUG_SYSTEM", .value = LTTNG_LOGLEVEL_DEBUG_SYSTEM },
  37         { .name = "SYSTEM", .value = LTTNG_LOGLEVEL_DEBUG_SYSTEM },
  38         { .name = "DEBUG_PROGRAM", .value = LTTNG_LOGLEVEL_DEBUG_PROGRAM },
  39         { .name = "TRACE_DEBUG_PROGRAM", .value = LTTNG_LOGLEVEL_DEBUG_PROGRAM },
  40         { .name = "PROGRAM", .value = LTTNG_LOGLEVEL_DEBUG_PROGRAM },
  41         { .name = "DEBUG_PROCESS", .value = LTTNG_LOGLEVEL_DEBUG_PROCESS },
  42         { .name = "TRACE_DEBUG_PROCESS", .value = LTTNG_LOGLEVEL_DEBUG_PROCESS },
  43         { .name = "PROCESS", .value = LTTNG_LOGLEVEL_DEBUG_PROCESS },
  44         { .name = "DEBUG_MODULE", .value = LTTNG_LOGLEVEL_DEBUG_MODULE },
  45         { .name = "TRACE_DEBUG_MODULE", .value = LTTNG_LOGLEVEL_DEBUG_MODULE },
  46         { .name = "MODULE", .value = LTTNG_LOGLEVEL_DEBUG_MODULE },
  47         { .name = "DEBUG_UNIT", .value = LTTNG_LOGLEVEL_DEBUG_UNIT },
  48         { .name = "TRACE_DEBUG_UNIT", .value = LTTNG_LOGLEVEL_DEBUG_UNIT },
  49         { .name = "UNIT", .value = LTTNG_LOGLEVEL_DEBUG_UNIT },
  50         { .name = "DEBUG_FUNCTION", .value = LTTNG_LOGLEVEL_DEBUG_FUNCTION },
  51         { .name = "TRACE_DEBUG_FUNCTION", .value = LTTNG_LOGLEVEL_DEBUG_FUNCTION },
  52         { .name = "FUNCTION", .value = LTTNG_LOGLEVEL_DEBUG_FUNCTION },
  53         { .name = "DEBUG_LINE", .value = LTTNG_LOGLEVEL_DEBUG_LINE },
  54         { .name = "TRACE_DEBUG_LINE", .value = LTTNG_LOGLEVEL_DEBUG_LINE },
  55         { .name = "LINE", .value = LTTNG_LOGLEVEL_DEBUG_LINE },
  56         { .name = "DEBUG", .value = LTTNG_LOGLEVEL_DEBUG },
  57         { .name = "TRACE_DEBUG", .value = LTTNG_LOGLEVEL_DEBUG },
  58 };
  59
  60 static
  61 const struct loglevel_name_value loglevel_log4j_values[] = {
  62         { .name = "OFF", .value = LTTNG_LOGLEVEL_LOG4J_OFF },
  63         { .name = "LOG4J_OFF", .value = LTTNG_LOGLEVEL_LOG4J_OFF },
  64         { .name = "FATAL", .value = LTTNG_LOGLEVEL_LOG4J_FATAL },
  65         { .name = "LOG4J_FATAL", .value = LTTNG_LOGLEVEL_LOG4J_FATAL },
  66         { .name = "ERROR", .value = LTTNG_LOGLEVEL_LOG4J_ERROR },
  67         { .name = "LOG4J_ERROR", .value = LTTNG_LOGLEVEL_LOG4J_ERROR },
  68         { .name = "WARN", .value = LTTNG_LOGLEVEL_LOG4J_WARN },
  69         { .name = "LOG4J_WARN", .value = LTTNG_LOGLEVEL_LOG4J_WARN },
  70         { .name = "INFO", .value = LTTNG_LOGLEVEL_LOG4J_INFO },
  71         { .name = "LOG4J_INFO", .value = LTTNG_LOGLEVEL_LOG4J_INFO },
  72         { .name = "DEBUG", .value = LTTNG_LOGLEVEL_LOG4J_DEBUG },
  73         { .name = "LOG4J_DEBUG", .value = LTTNG_LOGLEVEL_LOG4J_DEBUG },
  74         { .name = "TRACE", .value = LTTNG_LOGLEVEL_LOG4J_TRACE },
  75         { .name = "LOG4J_TRACE", .value = LTTNG_LOGLEVEL_LOG4J_TRACE },
  76         { .name = "ALL", .value = LTTNG_LOGLEVEL_LOG4J_ALL },
  77         { .name = "LOG4J_ALL", .value = LTTNG_LOGLEVEL_LOG4J_ALL },
  78 };
  79
  80 static
  81 const struct loglevel_name_value loglevel_jul_values[] = {
  82         { .name = "OFF", .value = LTTNG_LOGLEVEL_JUL_OFF },
  83         { .name = "JUL_OFF", .value = LTTNG_LOGLEVEL_JUL_OFF },
  84         { .name = "SEVERE", .value = LTTNG_LOGLEVEL_JUL_SEVERE },
  85         { .name = "JUL_SEVERE", .value = LTTNG_LOGLEVEL_JUL_SEVERE },
  86         { .name = "WARNING", .value = LTTNG_LOGLEVEL_JUL_WARNING },
  87         { .name = "JUL_WARNING", .value = LTTNG_LOGLEVEL_JUL_WARNING },
  88         { .name = "INFO", .value = LTTNG_LOGLEVEL_JUL_INFO },
  89         { .name = "JUL_INFO", .value = LTTNG_LOGLEVEL_JUL_INFO },
  90         { .name = "CONFIG", .value = LTTNG_LOGLEVEL_JUL_CONFIG },
  91         { .name = "JUL_CONFIG", .value = LTTNG_LOGLEVEL_JUL_CONFIG },
  92         { .name = "FINE", .value = LTTNG_LOGLEVEL_JUL_FINE },
  93         { .name = "JUL_FINE", .value = LTTNG_LOGLEVEL_JUL_FINE },
  94         { .name = "FINER", .value = LTTNG_LOGLEVEL_JUL_FINER },
  95         { .name = "JUL_FINER", .value = LTTNG_LOGLEVEL_JUL_FINER },
  96         { .name = "FINEST", .value = LTTNG_LOGLEVEL_JUL_FINEST },
  97         { .name = "JUL_FINEST", .value = LTTNG_LOGLEVEL_JUL_FINEST },
  98         { .name = "ALL", .value = LTTNG_LOGLEVEL_JUL_ALL },
  99         { .name = "JUL_ALL", .value = LTTNG_LOGLEVEL_JUL_ALL },
 100 };
 101
 102 static
 103 const struct loglevel_name_value loglevel_python_values[] = {
 104         { .name = "CRITICAL", .value = LTTNG_LOGLEVEL_PYTHON_CRITICAL },
 105         { .name = "PYTHON_CRITICAL", .value = LTTNG_LOGLEVEL_PYTHON_CRITICAL },
 106         { .name = "ERROR", .value = LTTNG_LOGLEVEL_PYTHON_ERROR },
 107         { .name = "PYTHON_ERROR", .value = LTTNG_LOGLEVEL_PYTHON_ERROR },
 108         { .name = "WARNING", .value = LTTNG_LOGLEVEL_PYTHON_WARNING },
 109         { .name = "PYTHON_WARNING", .value = LTTNG_LOGLEVEL_PYTHON_WARNING },
 110         { .name = "INFO", .value = LTTNG_LOGLEVEL_PYTHON_INFO },
 111         { .name = "PYTHON_INFO", .value = LTTNG_LOGLEVEL_PYTHON_INFO },
 112         { .name = "DEBUG", .value = LTTNG_LOGLEVEL_PYTHON_DEBUG },
 113         { .name = "PYTNON_DEBUG", .value = LTTNG_LOGLEVEL_PYTHON_DEBUG },
 114         { .name = "NOTSET", .value = LTTNG_LOGLEVEL_PYTHON_NOTSET },
 115         { .name = "PYTHON_NOTSET", .value = LTTNG_LOGLEVEL_PYTHON_NOTSET },
 116 };
 117
 118 static
 119 bool string_equal_insensitive(const char *a, const char *b)
 120 {
 121         return strcasecmp(a, b) == 0;
 122 }
 123
 124 static
 125 int lookup_value_from_name(const struct loglevel_name_value values[],
 126                 size_t values_count, const char *name)
 127 {
 128         size_t i;
 129         int ret = -1;
 130
 131         if (!name) {
 132                 goto end;
 133         }
 134
 135         for (i = 0; i < values_count; i++) {
 136                 if (string_equal_insensitive(values[i].name, name)) {
 137                         /* Match found. */
 138                         ret = values[i].value;
 139                         goto end;
 140                 }
 141         }
 142
 143 end:
 144         return ret;
 145 }
 146
 147 LTTNG_HIDDEN
 148 int loglevel_name_to_value(const char *name, enum lttng_loglevel *loglevel)
 149 {
 150         int ret = lookup_value_from_name(loglevel_values,
 151                         ARRAY_SIZE(loglevel_values), name);
 152
 153         if (ret >= 0) {
 154                 *loglevel = (typeof(*loglevel)) ret;
 155                 ret = 0;
 156         }
 157
 158         return ret;
 159 }
 160
 161 LTTNG_HIDDEN
 162 int loglevel_log4j_name_to_value(
 163                 const char *name, enum lttng_loglevel_log4j *loglevel)
 164 {
 165         int ret = lookup_value_from_name(loglevel_log4j_values,
 166                         ARRAY_SIZE(loglevel_log4j_values),
 167                         name);
 168
 169         if (ret >= 0) {
 170                 *loglevel = (typeof(*loglevel)) ret;
 171                 ret = 0;
 172         }
 173
 174         return ret;
 175 }
 176
 177 LTTNG_HIDDEN
 178 int loglevel_jul_name_to_value(
 179                 const char *name, enum lttng_loglevel_jul *loglevel)
 180 {
 181         int ret = lookup_value_from_name(loglevel_jul_values,
 182                         ARRAY_SIZE(loglevel_jul_values),
 183                         name);
 184
 185         if (ret >= 0) {
 186                 *loglevel = (typeof(*loglevel)) ret;
 187                 ret = 0;
 188         }
 189
 190         return ret;
 191 }
 192
 193 LTTNG_HIDDEN
 194 int loglevel_python_name_to_value(
 195                 const char *name, enum lttng_loglevel_python *loglevel)
 196 {
 197         int ret = lookup_value_from_name(loglevel_python_values,
 198                         ARRAY_SIZE(loglevel_python_values),
 199                         name);
 200
 201         if (ret >= 0) {
 202                 *loglevel = (typeof(*loglevel)) ret;
 203                 ret = 0;
 204         }
 205
 206         return ret;
 207 }
 208
 209 static
 210 const char *lookup_name_from_value(const struct loglevel_name_value values[],
 211                 size_t values_count, int loglevel)
 212 {
 213         size_t i;
 214         const char *name = NULL;
 215
 216         for (i = 0; i < values_count; i++) {
 217                 if (values[i].value == loglevel) {
 218                         /* Match found. */
 219                         name = values[i].name;
 220                         goto end;
 221                 }
 222         }
 223
 224 end:
 225         return name;
 226 }
 227
 228 LTTNG_HIDDEN
 229 const char *loglevel_value_to_name(int loglevel)
 230 {
 231         return lookup_name_from_value(
 232                         loglevel_values, ARRAY_SIZE(loglevel_values), loglevel);
 233 }
 234
 235 LTTNG_HIDDEN
 236 const char *loglevel_log4j_value_to_name(int loglevel)
 237 {
 238         return lookup_name_from_value(loglevel_log4j_values,
 239                         ARRAY_SIZE(loglevel_log4j_values), loglevel);
 240 }
 241
 242 LTTNG_HIDDEN
 243 const char *loglevel_jul_value_to_name(int loglevel)
 244 {
 245         return lookup_name_from_value(loglevel_jul_values,
 246                         ARRAY_SIZE(loglevel_jul_values), loglevel);
 247 }
 248
 249 LTTNG_HIDDEN
 250 const char *loglevel_python_value_to_name(int loglevel)
 251 {
 252         return lookup_name_from_value(loglevel_python_values,
 253                         ARRAY_SIZE(loglevel_python_values), loglevel);
 254 }