2 * Copyright (C) 2007 The Android Open Source Project
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
25 #ifdef SD_JOURNAL_SUPPORT
27 #include <systemd/sd-journal.h>
29 #define LOG_BUF_SIZE 1024
31 #define LOG_MAIN "log_main"
32 #define LOG_RADIO "log_radio"
33 #define LOG_SYSTEM "log_system"
34 #define LOG_APPS "log_apps"
36 static int log_fds[(int)LOG_ID_MAX] = { -1, -1, -1, -1 };
38 static int g_logging_on = 1;
39 static int g_dlog_level = DLOG_SILENT;
41 static int __dlog_init(log_id_t, log_priority, const char *tag, const char *msg);
42 static int (*write_to_log)(log_id_t, log_priority, const char *tag, const char *msg) = __dlog_init;
43 static pthread_mutex_t log_init_lock = PTHREAD_MUTEX_INITIALIZER;
44 static int __write_to_log_null(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
48 static int __write_to_log_kernel(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
54 if (log_id < LOG_ID_APPS) {
55 if(prio < g_dlog_level) {
58 } else if (LOG_ID_MAX <= log_id) {
61 if (log_id < LOG_ID_MAX)
62 log_fd = log_fds[log_id];
72 vec[0].iov_base = (unsigned char *) &prio;
74 vec[1].iov_base = (void *) tag;
75 vec[1].iov_len = strlen(tag) + 1;
76 vec[2].iov_base = (void *) msg;
77 vec[2].iov_len = strlen(msg) + 1;
79 ret = writev(log_fd, vec, 3);
83 static char dlog_pri_to_char (log_priority pri)
86 case DLOG_VERBOSE: return 'V';
87 case DLOG_DEBUG: return 'D';
88 case DLOG_INFO: return 'I';
89 case DLOG_WARN: return 'W';
90 case DLOG_ERROR: return 'E';
91 case DLOG_FATAL: return 'F';
92 case DLOG_SILENT: return 'S';
100 #ifdef SD_JOURNAL_SUPPORT
101 static int dlog_pri_to_journal_pri(log_priority prio)
103 int journal_prio = LOG_DEBUG;
109 journal_prio = LOG_DEBUG;
112 journal_prio = LOG_DEBUG;
115 journal_prio = LOG_INFO;
118 journal_prio = LOG_WARNING;
121 journal_prio = LOG_ERR;
124 journal_prio = LOG_CRIT;
133 static int __write_to_log_sd_journal_print(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
138 if (log_id < LOG_ID_APPS) {
139 if(prio < g_dlog_level) {
142 } else if (LOG_ID_MAX <= log_id) {
145 if (log_id < LOG_ID_MAX)
146 log_fd = log_fds[log_id];
149 return sd_journal_print(dlog_pri_to_journal_pri(prio), "%c %s: %s",dlog_pri_to_char(prio), tag, msg);
152 void init_dlog_level(void)
154 char *dlog_level_env;
155 char *logging_mode_env;
157 logging_mode_env = getenv("TIZEN_PLATFORMLOGGING_MODE");
158 if (!logging_mode_env)
161 g_logging_on = atoi(logging_mode_env);
164 dlog_level_env = getenv("TIZEN_DLOG_LEVEL");
165 if (!dlog_level_env) {
168 g_dlog_level = atoi(dlog_level_env);
173 static int __dlog_init(log_id_t log_id, log_priority prio, const char *tag, const char *msg)
175 pthread_mutex_lock(&log_init_lock);
176 // get filtering info
178 if (write_to_log == __dlog_init) {
181 log_fds[LOG_ID_MAIN] = open("/dev/"LOG_MAIN, O_WRONLY);
182 log_fds[LOG_ID_RADIO] = open("/dev/"LOG_RADIO, O_WRONLY);
183 log_fds[LOG_ID_SYSTEM] = open("/dev/"LOG_SYSTEM, O_WRONLY);
184 log_fds[LOG_ID_APPS] = open("/dev/"LOG_APPS, O_WRONLY);
186 if (log_fds[LOG_ID_MAIN] < 0 || log_fds[LOG_ID_RADIO] < 0) {
187 fprintf(stderr, "open log dev is failed\n");
188 write_to_log = __write_to_log_null;
190 #ifdef SD_JOURNAL_SUPPORT
191 write_to_log = __write_to_log_sd_journal_print;
193 write_to_log = __write_to_log_kernel;
197 if (log_fds[LOG_ID_SYSTEM] < 0)
198 log_fds[LOG_ID_SYSTEM] = log_fds[LOG_ID_MAIN];
200 if (log_fds[LOG_ID_APPS] < 0)
201 log_fds[LOG_ID_APPS] = log_fds[LOG_ID_MAIN];
203 pthread_mutex_unlock(&log_init_lock);
204 return write_to_log(log_id, prio, tag, msg);
207 int __dlog_vprint(log_id_t log_id, int prio, const char *tag, const char *fmt, va_list ap)
209 char buf[LOG_BUF_SIZE];
211 vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
213 return write_to_log(log_id, prio, tag, buf);
216 int __dlog_print(log_id_t log_id, int prio, const char *tag, const char *fmt, ...)
219 char buf[LOG_BUF_SIZE];
222 vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
225 return write_to_log(log_id, prio, tag, buf);
227 int _get_logging_on(void)