common/tdm_log.c

   1 /**************************************************************************
   2  *
   3  * libtdm
   4  *
   5  * Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
   6  *
   7  * Contact: Eunchul Kim <chulspro.kim@samsung.com>,
   8  *          JinYoung Jeon <jy0.jeon@samsung.com>,
   9  *          Taeheon Kim <th908.kim@samsung.com>,
  10  *          YoungJun Cho <yj44.cho@samsung.com>,
  11  *          SooChan Lim <sc1.lim@samsung.com>,
  12  *          Boram Park <sc1.lim@samsung.com>
  13  *
  14  * Permission is hereby granted, free of charge, to any person obtaining a
  15  * copy of this software and associated documentation files (the
  16  * "Software"), to deal in the Software without restriction, including
  17  * without limitation the rights to use, copy, modify, merge, publish,
  18  * distribute, sub license, and/or sell copies of the Software, and to
  19  * permit persons to whom the Software is furnished to do so, subject to
  20  * the following conditions:
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  27  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  28  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  29  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  30  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  31  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  32  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  33  *
  34 **************************************************************************/
  35
  36 #ifdef HAVE_CONFIG_H
  37 #include "config.h"
  38 #endif
  39
  40 #include <stdio.h>
  41 #include <unistd.h>
  42 #include <time.h>
  43 #include <assert.h>
  44 #include <sys/syscall.h>
  45 #include <dlog.h>
  46 #include <pthread.h>
  47
  48 #include "tdm.h"
  49 #include "tdm_log.h"
  50 #include "tdm_macro.h"
  51
  52 //#define TDM_CONFIG_ASSERT
  53
  54 #define LOG_MAX_LEN    4076
  55
  56 #define COLOR_RED "\x1b[31m"      /* for error */
  57 #define COLOR_YELLOW "\x1b[33m"   /* for warning */
  58 #define COLOR_GREEN "\x1b[32m"    /* for info */
  59 #define COLOR_RESET "\x1b[0m"
  60
  61 #undef LOG_TAG
  62 #define LOG_TAG "TDM"
  63
  64 static unsigned int dlog_enable = 1;
  65 static unsigned int color_enable = 1;
  66
  67 static unsigned int need_check_env = 1;
  68
  69 static unsigned int log_lock_init;
  70 static pthread_mutex_t log_lock;
  71
  72 unsigned int tdm_log_debug_level = TDM_LOG_LEVEL_INFO;
  73
  74 static void
  75 _tdm_log_check_env(void)
  76 {
  77         const char *str;
  78         char *end;
  79
  80         str = getenv("TDM_DEBUG_LEVEL");
  81         if (str)
  82                 tdm_log_debug_level = strtol(str, &end, 10);
  83
  84         str = getenv("TDM_DEBUG");
  85         if (str && (strstr(str, "1")))
  86                 tdm_log_debug_level = TDM_LOG_LEVEL_DBG;
  87
  88         str = getenv("TDM_DLOG");
  89         if (str && (strstr(str, "0")))
  90                 dlog_enable = 0;
  91 }
  92
  93 EXTERN void
  94 tdm_log_enable_color(unsigned int enable)
  95 {
  96         color_enable = enable;
  97 }
  98
  99 EXTERN void
 100 tdm_log_enable_dlog(unsigned int enable)
 101 {
 102         dlog_enable = enable;
 103 }
 104
 105 EXTERN void
 106 tdm_log_enable_debug(unsigned int enable)
 107 {
 108         if (enable)
 109                 tdm_log_debug_level = TDM_LOG_LEVEL_DBG;
 110         else
 111                 tdm_log_debug_level = TDM_LOG_LEVEL_INFO;
 112 }
 113
 114 EXTERN void
 115 tdm_log_set_debug_level(int level)
 116 {
 117         tdm_log_debug_level = level;
 118 }
 119
 120 EXTERN void
 121 tdm_log_print(int level, const char *fmt, ...)
 122 {
 123         va_list arg;
 124
 125         if (!log_lock_init) {
 126                 log_lock_init = 1;
 127                 pthread_mutex_init(&log_lock, NULL);
 128
 129         }
 130
 131         if (need_check_env) {
 132                 need_check_env = 0;
 133                 _tdm_log_check_env();
 134         }
 135
 136         if (level > tdm_log_debug_level)
 137                 return;
 138
 139         if (dlog_enable) {
 140                 log_priority dlog_prio;
 141                 switch (level) {
 142                 case TDM_LOG_LEVEL_ERR:
 143                         dlog_prio = DLOG_ERROR;
 144                         break;
 145                 case TDM_LOG_LEVEL_WRN:
 146                         dlog_prio = DLOG_WARN;
 147                         break;
 148                 case TDM_LOG_LEVEL_INFO:
 149                         dlog_prio = DLOG_INFO;
 150                         break;
 151                 case TDM_LOG_LEVEL_DBG:
 152                         dlog_prio = DLOG_DEBUG;
 153                         break;
 154                 default:
 155                         return;
 156                 }
 157                 va_start(arg, fmt);
 158                 __dlog_vprint(LOG_ID_SYSTEM, dlog_prio, LOG_TAG, fmt, arg);
 159                 va_end(arg);
 160         } else {
 161                 struct timespec ts;
 162                 char *lvl_str[] = {"TDM_NON", "TDM_ERR", "TDM_WRN", "TDM_INF", "TDM_DBG"};
 163                 char *color[] = {COLOR_RESET, COLOR_RED, COLOR_YELLOW, COLOR_GREEN, COLOR_RESET};
 164
 165                 clock_gettime(CLOCK_MONOTONIC, &ts);
 166
 167                 pthread_mutex_lock(&log_lock);
 168
 169                 if (color_enable)
 170                         printf("%s", color[level]);
 171                 printf("[%s]", lvl_str[level]);
 172                 if (color_enable)
 173                         printf(COLOR_RESET);
 174                 printf("[%d.%06d]", (int)ts.tv_sec, (int)ts.tv_nsec / 1000);
 175                 va_start(arg, fmt);
 176                 vprintf(fmt, arg);
 177                 va_end(arg);
 178
 179                 pthread_mutex_unlock(&log_lock);
 180         }
 181
 182 #ifdef TDM_CONFIG_ASSERT
 183         if (level < 3)
 184                 assert(0);
 185 #endif
 186 }