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 LOG_MAX_LEN    4076
  53
  54 #define COLOR_RED "\x1b[31m"      /* for error */
  55 #define COLOR_YELLOW "\x1b[33m"   /* for warning */
  56 #define COLOR_GREEN "\x1b[32m"    /* for info */
  57 #define COLOR_RESET "\x1b[0m"
  58
  59 #undef LOG_TAG
  60 #define LOG_TAG "TDM"
  61
  62 static unsigned int dlog_enable = 1;
  63 static unsigned int color_enable = 1;
  64
  65 static unsigned int assert_level = TDM_LOG_LEVEL_NONE;
  66
  67 static unsigned int log_lock_init;
  68 static pthread_mutex_t log_lock;
  69
  70 unsigned int tdm_log_debug_level = TDM_LOG_LEVEL_INFO;
  71
  72 EXTERN void
  73 tdm_log_enable_color(unsigned int enable)
  74 {
  75         color_enable = enable;
  76 }
  77
  78 EXTERN void
  79 tdm_log_enable_dlog(unsigned int enable)
  80 {
  81         dlog_enable = enable;
  82 }
  83
  84 EXTERN void
  85 tdm_log_enable_debug(unsigned int enable)
  86 {
  87         if (enable)
  88                 tdm_log_debug_level = TDM_LOG_LEVEL_DBG;
  89         else
  90                 tdm_log_debug_level = TDM_LOG_LEVEL_INFO;
  91 }
  92
  93 EXTERN void
  94 tdm_log_set_debug_level(int level)
  95 {
  96         tdm_log_debug_level = level;
  97 }
  98
  99 EXTERN void
 100 tdm_log_set_assert_level(int level)
 101 {
 102         assert_level = level;
 103 }
 104
 105 EXTERN void
 106 tdm_log_set_path(const char *path)
 107 {
 108         char fd_name[TDM_PATH_LEN];
 109         int  log_fd = -1;
 110         FILE *log_fl;
 111
 112         snprintf(fd_name, TDM_PATH_LEN, "%s", path);
 113
 114         log_fl = fopen(fd_name, "a");
 115         if (!log_fl) {
 116                 TDM_ERR("failed: open file(%s)\n", fd_name);
 117                 return;
 118         }
 119
 120         fflush(stdout);
 121         close(STDOUT_FILENO);
 122
 123         setvbuf(log_fl, NULL, _IOLBF, 512);
 124         log_fd = fileno(log_fl);
 125
 126         dup2(log_fd, STDOUT_FILENO);
 127         fclose(log_fl);
 128 }
 129
 130 EXTERN void
 131 tdm_log_print(int level, const char *fmt, ...)
 132 {
 133         va_list arg;
 134
 135         if (!log_lock_init) {
 136                 log_lock_init = 1;
 137                 pthread_mutex_init(&log_lock, NULL);
 138
 139         }
 140
 141         if (level > tdm_log_debug_level)
 142                 return;
 143
 144         if (dlog_enable) {
 145                 log_priority dlog_prio;
 146                 switch (level) {
 147                 case TDM_LOG_LEVEL_ERR:
 148                         dlog_prio = DLOG_ERROR;
 149                         break;
 150                 case TDM_LOG_LEVEL_WRN:
 151                         dlog_prio = DLOG_WARN;
 152                         break;
 153                 case TDM_LOG_LEVEL_INFO:
 154                         dlog_prio = DLOG_INFO;
 155                         break;
 156                 case TDM_LOG_LEVEL_DBG:
 157                         dlog_prio = DLOG_DEBUG;
 158                         break;
 159                 default:
 160                         return;
 161                 }
 162                 va_start(arg, fmt);
 163                 __dlog_vprint(LOG_ID_SYSTEM, dlog_prio, LOG_TAG, fmt, arg);
 164                 va_end(arg);
 165         } else {
 166                 struct timespec ts;
 167                 char *lvl_str[] = {"TDM_NON", "TDM_ERR", "TDM_WRN", "TDM_INF", "TDM_DBG"};
 168                 char *color[] = {COLOR_RESET, COLOR_RED, COLOR_YELLOW, COLOR_GREEN, COLOR_RESET};
 169
 170                 clock_gettime(CLOCK_MONOTONIC, &ts);
 171
 172                 pthread_mutex_lock(&log_lock);
 173
 174                 if (color_enable)
 175                         printf("%s", color[level]);
 176                 printf("[%s]", lvl_str[level]);
 177                 if (color_enable)
 178                         printf(COLOR_RESET);
 179                 printf("[%d.%06d]", (int)ts.tv_sec, (int)ts.tv_nsec / 1000);
 180                 va_start(arg, fmt);
 181                 vprintf(fmt, arg);
 182                 va_end(arg);
 183
 184                 pthread_mutex_unlock(&log_lock);
 185         }
 186
 187 #ifdef TDM_CONFIG_ASSERT
 188         if (level <= assert_level)
 189                 assert(0);
 190 #endif
 191 }
 192
 193 EXTERN void
 194 tdm_log_reset(void)
 195 {
 196         pthread_mutex_trylock(&log_lock);
 197         pthread_mutex_unlock(&log_lock);
 198 }