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 <boram1288.park@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 <pthread.h>
  46
  47 #include "tdm.h"
  48 #include "tdm_log.h"
  49 #include "tdm_macro.h"
  50
  51 #define LOG_MAX_LEN    4076
  52
  53 #define COLOR_RED "\x1b[31m"      /* for error */
  54 #define COLOR_YELLOW "\x1b[33m"   /* for warning */
  55 #define COLOR_GREEN "\x1b[32m"    /* for info */
  56 #define COLOR_RESET "\x1b[0m"
  57
  58 #undef LOG_TAG
  59 #define LOG_TAG "TDM"
  60
  61 #if ENABLE_DLOG
  62 #include <dlog.h>
  63 static unsigned int dlog_enable = 1;
  64 #else
  65 #include <stdarg.h>
  66 static unsigned int dlog_enable = 0;
  67 #endif
  68 static unsigned int color_enable = 1;
  69
  70 static unsigned int assert_level = TDM_LOG_LEVEL_NONE;
  71
  72 static unsigned int log_lock_init;
  73 static pthread_mutex_t log_lock;
  74
  75 unsigned int tdm_log_debug_level = TDM_LOG_LEVEL_INFO;
  76
  77 static int stdout_fd = -1;
  78
  79 EXTERN void
  80 tdm_log_enable_color(unsigned int enable)
  81 {
  82         color_enable = enable;
  83         TDM_INFO("color_enable: %d", color_enable);
  84 }
  85
  86 EXTERN void
  87 tdm_log_enable_dlog(unsigned int enable)
  88 {
  89         dlog_enable = enable;
  90         TDM_INFO("dlog_enable: %d", dlog_enable);
  91 }
  92
  93 EXTERN void
  94 tdm_log_set_debug_level(int level)
  95 {
  96         tdm_log_debug_level = level;
  97         TDM_INFO("debug_level: %d", tdm_log_debug_level);
  98 }
  99
 100 EXTERN void
 101 tdm_log_set_assert_level(int level)
 102 {
 103         assert_level = level;
 104         TDM_INFO("assert_level: %d", assert_level);
 105 }
 106
 107 EXTERN void
 108 tdm_log_set_path(const char *path)
 109 {
 110         TDM_INFO("log_path: %s", path);
 111
 112         if (!path) {
 113                 if (stdout_fd != -1) {
 114                         fflush(stdout);
 115                         close(STDOUT_FILENO);
 116                         dup2(stdout_fd, STDOUT_FILENO);
 117                         close(stdout_fd);
 118                         stdout_fd = -1;
 119                 }
 120         } else {
 121                 char fd_name[TDM_PATH_LEN];
 122                 int  log_fd = -1;
 123                 FILE *log_fl;
 124
 125                 snprintf(fd_name, TDM_PATH_LEN, "%s", path);
 126
 127                 log_fl = fopen(fd_name, "a");
 128                 if (!log_fl) {
 129                         TDM_ERR("failed: open file(%s)\n", fd_name);
 130                         return;
 131                 }
 132
 133                 if (stdout_fd == -1) {
 134                         fflush(stdout);
 135                         stdout_fd = dup(STDOUT_FILENO);
 136                         if (stdout_fd < 0) {
 137                                 TDM_ERR("dup failed: %m\n");
 138                                 fclose(log_fl);
 139                                 return;
 140                         }
 141                 }
 142
 143                 setvbuf(log_fl, NULL, _IOLBF, 512);
 144                 log_fd = fileno(log_fl);
 145
 146                 close(STDOUT_FILENO);
 147                 dup2(log_fd, STDOUT_FILENO);
 148                 fclose(log_fl);
 149                 TDM_INFO("log_path: %s done", path);
 150         }
 151 }
 152
 153 static void
 154 _tdm_log_vprint_stdout(int level, const char *fmt, va_list ap)
 155 {
 156         if (!log_lock_init) {
 157                 log_lock_init = 1;
 158                 pthread_mutex_init(&log_lock, NULL);
 159         }
 160
 161         if (level > tdm_log_debug_level)
 162                 return;
 163
 164         char *lvl_str[] = {"TDM_NON", "TDM_ERR", "TDM_WRN", "TDM_INF", "TDM_DBG"};
 165         char *color[] = {COLOR_RESET, COLOR_RED, COLOR_YELLOW, COLOR_GREEN, COLOR_RESET};
 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         vprintf(fmt, ap);
 175         printf("\n");
 176         pthread_mutex_unlock(&log_lock);
 177 }
 178
 179
 180 EXTERN void
 181 tdm_log_printf(int level, const char *fmt, ...)
 182 {
 183         va_list arg;
 184         va_start(arg, fmt);
 185         _tdm_log_vprint_stdout(level, fmt, arg);
 186         va_end(arg);
 187 }
 188
 189 EXTERN void
 190 tdm_log_print(int level, const char *fmt, ...)
 191 {
 192         va_list arg;
 193
 194         if (level > tdm_log_debug_level)
 195                 return;
 196
 197 #if ENABLE_DLOG
 198         if (dlog_enable) {
 199                 log_priority dlog_prio;
 200                 switch (level) {
 201                 case TDM_LOG_LEVEL_ERR:
 202                         dlog_prio = DLOG_ERROR;
 203                         break;
 204                 case TDM_LOG_LEVEL_WRN:
 205                         dlog_prio = DLOG_WARN;
 206                         break;
 207                 case TDM_LOG_LEVEL_INFO:
 208                         dlog_prio = DLOG_INFO;
 209                         break;
 210                 case TDM_LOG_LEVEL_DBG:
 211                         dlog_prio = DLOG_DEBUG;
 212                         break;
 213                 default:
 214                         return;
 215                 }
 216                 va_start(arg, fmt);
 217                 __dlog_vprint(LOG_ID_SYSTEM, dlog_prio, LOG_TAG, fmt, arg);
 218                 va_end(arg);
 219         }
 220         else
 221 #endif
 222         {
 223                 va_start(arg, fmt);
 224                 _tdm_log_vprint_stdout(level, fmt, arg);
 225                 va_end(arg);
 226         }
 227
 228
 229         assert(level > assert_level);
 230 }
 231
 232 EXTERN void
 233 tdm_log_reset(void)
 234 {
 235         pthread_mutex_unlock(&log_lock);
 236 }