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d42e7319 JB |
1 | |
2 | /* | |
3 | * Copyright (c) 2013 Thomas Perl <m@thp.io> | |
4 | * | |
5 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
6 | * you may not use this file except in compliance with the License. | |
7 | * You may obtain a copy of the License at | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | * | |
17 | */ | |
18 | ||
19 | ||
20 | #include "logging.h" | |
21 | ||
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
24 | #include <stdio.h> | |
25 | #include <pthread.h> | |
26 | ||
27 | FILE *hybris_logging_target = NULL; | |
28 | ||
29 | pthread_mutex_t hybris_logging_mutex; | |
30 | ||
31 | static enum hybris_log_level | |
32 | hybris_minimum_log_level = HYBRIS_LOG_WARN; | |
33 | ||
34 | static enum hybris_log_format _hybris_logging_format = HYBRIS_LOG_FORMAT_NORMAL; | |
35 | ||
36 | static int _hybris_should_trace = 0; | |
37 | ||
38 | static int | |
39 | hybris_logging_initialized = 0; | |
40 | ||
41 | static void | |
42 | hybris_logging_initialize() | |
43 | { | |
44 | const char *env = getenv("HYBRIS_LOGGING_LEVEL"); | |
45 | ||
46 | if (env == NULL) { | |
47 | /* Nothing to do - use default level */ | |
48 | } else if (strcmp(env, "debug") == 0) { | |
49 | hybris_minimum_log_level = HYBRIS_LOG_DEBUG; | |
50 | } else if (strcmp(env, "info") == 0) { | |
51 | hybris_minimum_log_level = HYBRIS_LOG_INFO; | |
52 | } else if (strcmp(env, "warn") == 0) { | |
53 | hybris_minimum_log_level = HYBRIS_LOG_WARN; | |
54 | } else if (strcmp(env, "error") == 0) { | |
55 | hybris_minimum_log_level = HYBRIS_LOG_ERROR; | |
56 | } else if (strcmp(env, "disabled") == 0) { | |
57 | hybris_minimum_log_level = HYBRIS_LOG_DISABLED; | |
58 | } | |
59 | ||
60 | env = getenv("HYBRIS_LOGGING_TARGET"); | |
61 | if (env != NULL) | |
62 | { | |
63 | hybris_logging_target = fopen(env, "a"); | |
64 | } | |
65 | if (hybris_logging_target == NULL) | |
66 | hybris_logging_target = stderr; | |
67 | ||
68 | env = getenv("HYBRIS_LOGGING_FORMAT"); | |
69 | if (env != NULL) | |
70 | { | |
71 | if (strcmp(env, "systrace") == 0) { | |
72 | _hybris_logging_format = HYBRIS_LOG_FORMAT_SYSTRACE; | |
73 | } | |
74 | else | |
75 | _hybris_logging_format = HYBRIS_LOG_FORMAT_NORMAL; | |
76 | } | |
77 | ||
78 | env = getenv("HYBRIS_TRACE"); | |
79 | if (env != NULL) | |
80 | { | |
81 | if (strcmp(env, "1") == 0) { | |
82 | _hybris_should_trace = 1; | |
83 | } | |
84 | } | |
85 | pthread_mutex_init(&hybris_logging_mutex, NULL); | |
86 | } | |
87 | ||
88 | int | |
89 | hybris_should_log(enum hybris_log_level level) | |
90 | { | |
91 | /* Initialize logging level from environment */ | |
92 | if (!hybris_logging_initialized) { | |
93 | hybris_logging_initialized = 1; | |
94 | hybris_logging_initialize(); | |
95 | } | |
96 | ||
97 | return (level >= hybris_minimum_log_level); | |
98 | } | |
99 | ||
100 | void | |
101 | hybris_set_log_level(enum hybris_log_level level) | |
102 | { | |
103 | hybris_minimum_log_level = level; | |
104 | } | |
105 | ||
106 | void * | |
107 | hybris_get_thread_id() | |
108 | { | |
109 | return (void *)pthread_self(); | |
110 | } | |
111 | ||
112 | int | |
113 | hybris_should_trace(const char *module, const char *tracepoint) | |
114 | { | |
115 | return _hybris_should_trace; | |
116 | } | |
117 | ||
118 | enum hybris_log_format hybris_logging_format() | |
119 | { | |
120 | return _hybris_logging_format; | |
121 | } |