log: enable dlog by default to debug client error
[platform/core/uifw/libtdm.git] / 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
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19  * permit persons to whom the Software is furnished to do so, subject to
20  * the following conditions:
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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
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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 static unsigned int debug_level = TDM_LOG_LEVEL_INFO;
67
68 static unsigned int need_check_env = 1;
69
70 static unsigned int log_lock_init;
71 static pthread_mutex_t log_lock;
72
73 static void
74 _tdm_log_check_env(void)
75 {
76         const char *str;
77         char *end;
78
79         str = getenv("TDM_DEBUG_LEVEL");
80         if (str)
81                 debug_level = strtol(str, &end, 10);
82
83         str = getenv("TDM_DEBUG");
84         if (str && (strstr(str, "1")))
85                 debug_level = TDM_LOG_LEVEL_DBG;
86
87         str = getenv("TDM_DLOG");
88         if (str && (strstr(str, "0")))
89                 dlog_enable = 0;
90 }
91
92 EXTERN void
93 tdm_log_enable_color(unsigned int enable)
94 {
95         color_enable = enable;
96 }
97
98 EXTERN void
99 tdm_log_enable_dlog(unsigned int enable)
100 {
101         dlog_enable = enable;
102 }
103
104 EXTERN void
105 tdm_log_enable_debug(unsigned int enable)
106 {
107         if (enable)
108                 debug_level = TDM_LOG_LEVEL_DBG;
109         else
110                 debug_level = TDM_LOG_LEVEL_INFO;
111 }
112
113 EXTERN void
114 tdm_log_set_debug_level(int level)
115 {
116         debug_level = level;
117 }
118
119 EXTERN void
120 tdm_log_print(int level, const char *fmt, ...)
121 {
122         va_list arg;
123
124         if (!log_lock_init) {
125                 log_lock_init = 1;
126                 pthread_mutex_init(&log_lock, NULL);
127
128         }
129
130         if (need_check_env) {
131                 need_check_env = 0;
132                 _tdm_log_check_env();
133         }
134
135         if (level > debug_level)
136                 return;
137
138         if (dlog_enable) {
139                 log_priority dlog_prio;
140                 switch (level) {
141                 case TDM_LOG_LEVEL_ERR:
142                         dlog_prio = DLOG_ERROR;
143                         break;
144                 case TDM_LOG_LEVEL_WRN:
145                         dlog_prio = DLOG_WARN;
146                         break;
147                 case TDM_LOG_LEVEL_INFO:
148                         dlog_prio = DLOG_INFO;
149                         break;
150                 case TDM_LOG_LEVEL_DBG:
151                         dlog_prio = DLOG_DEBUG;
152                         break;
153                 default:
154                         return;
155                 }
156                 va_start(arg, fmt);
157                 dlog_vprint(dlog_prio, LOG_TAG, fmt, arg);
158                 va_end(arg);
159         } else {
160                 struct timespec ts;
161                 char *lvl_str[] = {"TDM_NON", "TDM_ERR", "TDM_WRN", "TDM_INF", "TDM_DBG"};
162                 char *color[] = {COLOR_RESET, COLOR_RED, COLOR_YELLOW, COLOR_GREEN, COLOR_RESET};
163
164                 clock_gettime(CLOCK_MONOTONIC, &ts);
165
166                 pthread_mutex_lock(&log_lock);
167
168                 if (color_enable)
169                         printf("%s", color[level]);
170                 printf("[%s]", lvl_str[level]);
171                 if (color_enable)
172                         printf(COLOR_RESET);
173                 printf("[%d.%06d]", (int)ts.tv_sec, (int)ts.tv_nsec / 1000);
174                 va_start(arg, fmt);
175                 vprintf(fmt, arg);
176                 va_end(arg);
177
178                 pthread_mutex_unlock(&log_lock);
179         }
180
181 #ifdef TDM_CONFIG_ASSERT
182         if (level < 3)
183                 assert(0);
184 #endif
185 }