src/tbm_log.c

   1 /**************************************************************************
   2
   3 libtbm
   4
   5 Copyright 2018 Samsung Electronics co., Ltd. All Rights Reserved.
   6
   7 Contact: SooChan Lim <sc1.lim@samsung.com>, Sangjin Lee <lsj119@samsung.com>
   8 Boram Park <boram1288.park@samsung.com>, Changyeon Lee <cyeon.lee@samsung.com>
   9
  10 Permission is hereby granted, free of charge, to any person obtaining a
  11 copy of this software and associated documentation files (the
  12 "Software"), to deal in the Software without restriction, including
  13 without limitation the rights to use, copy, modify, merge, publish,
  14 distribute, sub license, and/or sell copies of the Software, and to
  15 permit persons to whom the Software is furnished to do so, subject to
  16 the following conditions:
  17
  18 The above copyright notice and this permission notice (including the
  19 next paragraph) shall be included in all copies or substantial portions
  20 of the Software.
  21
  22 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  23 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  25 IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  26 ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  27 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  28 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29
  30 **************************************************************************/
  31
  32 #ifdef HAVE_CONFIG_H
  33 #include "config.h"
  34 #endif
  35
  36 #include "tbm_bufmgr_int.h"
  37 #include "tbm_log.h"
  38 #include <dlog.h>
  39
  40 #define TBM_PATH_LEN        1024
  41
  42 #define COLOR_RED "\x1b[31m"      /* for error */
  43 #define COLOR_YELLOW "\x1b[33m"   /* for warning */
  44 #define COLOR_GREEN "\x1b[32m"    /* for info */
  45 #define COLOR_RESET "\x1b[0m"
  46
  47 #undef LOG_TAG
  48 #define LOG_TAG "TBM"
  49
  50 #if ENABLE_DLOG
  51 static unsigned int dlog_enable = 1;
  52 #else
  53 static unsigned int dlog_enable = 0;
  54 #endif
  55 static unsigned int color_enable = 1;
  56
  57 static unsigned int assert_level = TBM_LOG_LEVEL_NONE;
  58
  59 static unsigned int log_lock_init;
  60 static pthread_mutex_t log_lock;
  61
  62 unsigned int tbm_log_debug_level = TBM_LOG_LEVEL_INFO;
  63
  64 static int stdout_fd = -1;
  65
  66 void
  67 tbm_log_enable_color(unsigned int enable)
  68 {
  69         color_enable = enable;
  70 }
  71
  72 void
  73 tbm_log_enable_dlog(unsigned int enable)
  74 {
  75         dlog_enable = enable;
  76 }
  77
  78 void
  79 tbm_log_set_debug_level(int level)
  80 {
  81         tbm_log_debug_level = level;
  82 }
  83
  84 void
  85 tbm_log_set_assert_level(int level)
  86 {
  87         assert_level = level;
  88 }
  89
  90 void
  91 tbm_log_set_path(const char *path)
  92 {
  93         if (!path) {
  94                 if (stdout_fd != -1) {
  95                         fflush(stdout);
  96                         close(STDOUT_FILENO);
  97                         dup2(stdout_fd, STDOUT_FILENO);
  98                         close(stdout_fd);
  99                         stdout_fd = -1;
 100                 }
 101         } else {
 102                 char fd_name[TBM_PATH_LEN];
 103                 int  log_fd = -1;
 104                 FILE *log_fl;
 105
 106                 snprintf(fd_name, TBM_PATH_LEN, "%s", path);
 107
 108                 log_fl = fopen(fd_name, "a");
 109                 if (!log_fl) {
 110                         TBM_ERR("failed: open file(%s)\n", fd_name);
 111                         return;
 112                 }
 113
 114                 if (stdout_fd == -1) {
 115                         fflush(stdout);
 116                         stdout_fd = dup(STDOUT_FILENO);
 117                         if (stdout_fd < 0) {
 118                                 TBM_ERR("dup failed: %m\n");
 119                                 fclose(log_fl);
 120                                 return;
 121                         }
 122                 }
 123
 124                 setvbuf(log_fl, NULL, _IOLBF, 512);
 125                 log_fd = fileno(log_fl);
 126
 127                 close(STDOUT_FILENO);
 128                 dup2(log_fd, STDOUT_FILENO);
 129                 fclose(log_fl);
 130         }
 131 }
 132
 133 static void
 134 _tbm_log_vprint_stdout(int level, const char *fmt, va_list arg)
 135 {
 136         char *lvl_str[] = {"TBM_NON", "TBM_ERR", "TBM_WRN", "TBM_INF", "TBM_DBG"};
 137         char *color[] = {COLOR_RESET, COLOR_RED, COLOR_YELLOW, COLOR_GREEN, COLOR_RESET};
 138
 139         if (!log_lock_init) {
 140                 log_lock_init = 1;
 141                 pthread_mutex_init(&log_lock, NULL);
 142         }
 143
 144         if (level > tbm_log_debug_level)
 145                 return;
 146
 147         pthread_mutex_lock(&log_lock);
 148
 149         if (color_enable)
 150                 printf("%s", color[level]);
 151         printf("[%s]", lvl_str[level]);
 152         if (color_enable)
 153                 printf(COLOR_RESET);
 154         vprintf(fmt, arg);
 155         printf("\n");
 156         pthread_mutex_unlock(&log_lock);
 157 }
 158
 159 void
 160 tbm_log_print_stdout(int level, const char *fmt, ...)
 161 {
 162         va_list arg;
 163         va_start(arg, fmt);
 164         _tbm_log_vprint_stdout(level, fmt, arg);
 165         va_end(arg);
 166 }
 167
 168 static void
 169 _tbm_log_dlog_print(int level, const char *fmt, va_list arg)
 170 {
 171         log_priority dlog_prio;
 172
 173         switch (level) {
 174         case TBM_LOG_LEVEL_ERR:
 175                 dlog_prio = DLOG_ERROR;
 176                 break;
 177         case TBM_LOG_LEVEL_WRN:
 178                 dlog_prio = DLOG_WARN;
 179                 break;
 180         case TBM_LOG_LEVEL_INFO:
 181                 dlog_prio = DLOG_INFO;
 182                 break;
 183         case TBM_LOG_LEVEL_DBG:
 184                 dlog_prio = DLOG_DEBUG;
 185                 break;
 186         default:
 187                 return;
 188         }
 189         __dlog_vprint(LOG_ID_SYSTEM, dlog_prio, LOG_TAG, fmt, arg);
 190 }
 191
 192 void
 193 tbm_log_print(int level, const char *fmt, ...)
 194 {
 195         va_list arg;
 196
 197         if (!log_lock_init) {
 198                 log_lock_init = 1;
 199                 pthread_mutex_init(&log_lock, NULL);
 200         }
 201
 202         if (level > tbm_log_debug_level)
 203                 return;
 204
 205         if (dlog_enable) {
 206                 va_start(arg, fmt);
 207                 _tbm_log_dlog_print(level, fmt, arg);
 208                 va_end(arg);
 209         } else {
 210                 va_start(arg, fmt);
 211                 _tbm_log_vprint_stdout(level, fmt, arg);
 212                 va_end(arg);
 213         }
 214
 215         assert(level > assert_level);
 216 }
 217