3 * Copyright (c) 2005-2008, The Android Open Source Project
4 * Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
6 * Licensed under the Apache License, Version 2.0 (the License);
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
27 #ifdef SD_JOURNAL_SUPPORT
29 #include <systemd/sd-journal.h>
31 #define LOG_BUF_SIZE 1024
33 #define LOG_MAIN "log_main"
34 #define LOG_RADIO "log_radio"
35 #define LOG_SYSTEM "log_system"
36 #define LOG_APPS "log_apps"
38 static int log_fds[(int)LOG_ID_MAX] = { -1, -1, -1, -1 };
40 static int g_logging_on = 1;
41 static int g_dlog_level = DLOG_SILENT;
43 static int __dlog_init(log_id_t, log_priority, const char *tag, const char *msg);
44 static int (*write_to_log)(log_id_t, log_priority, const char *tag, const char *msg) = __dlog_init;
45 static pthread_mutex_t log_init_lock = PTHREAD_MUTEX_INITIALIZER;
46 static int __write_to_log_null(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
50 static int __write_to_log_kernel(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
56 if (log_id < LOG_ID_APPS) {
57 if(prio < g_dlog_level) {
60 } else if (LOG_ID_MAX <= log_id) {
63 if (log_id < LOG_ID_MAX)
64 log_fd = log_fds[log_id];
74 vec[0].iov_base = (unsigned char *) &prio;
76 vec[1].iov_base = (void *) tag;
77 vec[1].iov_len = strlen(tag) + 1;
78 vec[2].iov_base = (void *) msg;
79 vec[2].iov_len = strlen(msg) + 1;
81 ret = writev(log_fd, vec, 3);
85 static char dlog_pri_to_char (log_priority pri)
88 case DLOG_VERBOSE: return 'V';
89 case DLOG_DEBUG: return 'D';
90 case DLOG_INFO: return 'I';
91 case DLOG_WARN: return 'W';
92 case DLOG_ERROR: return 'E';
93 case DLOG_FATAL: return 'F';
94 case DLOG_SILENT: return 'S';
102 #ifdef SD_JOURNAL_SUPPORT
103 static int dlog_pri_to_journal_pri(log_priority prio)
105 int journal_prio = LOG_DEBUG;
111 journal_prio = LOG_DEBUG;
114 journal_prio = LOG_DEBUG;
117 journal_prio = LOG_INFO;
120 journal_prio = LOG_WARNING;
123 journal_prio = LOG_ERR;
126 journal_prio = LOG_CRIT;
135 static int __write_to_log_sd_journal_print(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
140 if (log_id < LOG_ID_APPS) {
141 if(prio < g_dlog_level) {
144 } else if (LOG_ID_MAX <= log_id) {
147 if (log_id < LOG_ID_MAX)
148 log_fd = log_fds[log_id];
151 return sd_journal_print(dlog_pri_to_journal_pri(prio), "%c %s: %s",dlog_pri_to_char(prio), tag, msg);
154 void init_dlog_level(void)
156 char *dlog_level_env;
157 char *logging_mode_env;
159 logging_mode_env = getenv("TIZEN_PLATFORMLOGGING_MODE");
160 if (!logging_mode_env)
163 g_logging_on = atoi(logging_mode_env);
166 dlog_level_env = getenv("TIZEN_DLOG_LEVEL");
167 if (!dlog_level_env) {
170 g_dlog_level = atoi(dlog_level_env);
175 static int __dlog_init(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
177 pthread_mutex_lock(&log_init_lock);
178 // get filtering info
180 if (write_to_log == __dlog_init) {
183 log_fds[LOG_ID_MAIN] = open("/dev/"LOG_MAIN, O_WRONLY);
184 log_fds[LOG_ID_RADIO] = open("/dev/"LOG_RADIO, O_WRONLY);
185 log_fds[LOG_ID_SYSTEM] = open("/dev/"LOG_SYSTEM, O_WRONLY);
186 log_fds[LOG_ID_APPS] = open("/dev/"LOG_APPS, O_WRONLY);
188 if (log_fds[LOG_ID_MAIN] < 0 || log_fds[LOG_ID_RADIO] < 0) {
189 fprintf(stderr, "open log dev is failed\n");
190 write_to_log = __write_to_log_null;
192 #ifdef SD_JOURNAL_SUPPORT
193 write_to_log = __write_to_log_sd_journal_print;
195 write_to_log = __write_to_log_kernel;
199 if (log_fds[LOG_ID_SYSTEM] < 0)
200 log_fds[LOG_ID_SYSTEM] = log_fds[LOG_ID_MAIN];
202 if (log_fds[LOG_ID_APPS] < 0)
203 log_fds[LOG_ID_APPS] = log_fds[LOG_ID_MAIN];
205 pthread_mutex_unlock(&log_init_lock);
206 return write_to_log(log_id, prio, tag, msg);
209 int __dlog_vprint(log_id_t log_id, int prio, const char *tag, const char *fmt, va_list ap)
211 char buf[LOG_BUF_SIZE];
213 vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
215 return write_to_log(log_id, prio, tag, buf);
218 int __dlog_print(log_id_t log_id, int prio, const char *tag, const char *fmt, ...)
221 char buf[LOG_BUF_SIZE];
224 vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
227 return write_to_log(log_id, prio, tag, buf);
229 int _get_logging_on(void)