1 /*
2 * Copyright 2014 The Android Open Source Project
3 *
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
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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.
15 */
16
17 #include <errno.h>
18 #include <stdlib.h>
19 #include <ctype.h>
20
21 #define LOG_TAG "ADebug"
22 #include <utils/Log.h>
23 #include <utils/misc.h>
24
25 #include <cutils/properties.h>
26
27 #include <ADebug.h>
28 #include <AStringUtils.h>
29 #include <AUtils.h>
30
31 namespace android {
32
33 //static
GetDebugLevelFromString(const char * name,const char * value,ADebug::Level def)34 ADebug::Level ADebug::GetDebugLevelFromString(
35 const char *name, const char *value, ADebug::Level def) {
36 // split on ,
37 const char *next = value, *current;
38 const unsigned long maxLevel = (unsigned long)kDebugMax;
39 while (next != NULL) {
40 current = next;
41 next = strchr(current, ',');
42 if (next != NULL) {
43 ++next; // pass ,
44 }
45
46 while (isspace(*current)) {
47 ++current;
48 }
49 // check for :
50 char *colon = strchr(current, ':');
51
52 // get level
53 char *end;
54 errno = 0; // strtoul does not clear errno, but it can be set for any return value
55 unsigned long level = strtoul(current, &end, 10);
56 while (isspace(*end)) {
57 ++end;
58 }
59 if (errno != 0 || end == current || (end != colon && *end != '\0' && end != next)) {
60 // invalid level - skip
61 continue;
62 }
63 if (colon != NULL) {
64 // check if pattern matches
65 do { // skip colon and spaces
66 ++colon;
67 } while (isspace(*colon));
68 size_t globLen = (next == NULL ? strlen(colon) : (next - 1 - colon));
69 while (globLen > 0 && isspace(colon[globLen - 1])) {
70 --globLen; // trim glob
71 }
72
73 if (!AStringUtils::MatchesGlob(
74 colon, globLen, name, strlen(name), true /* ignoreCase */)) {
75 continue;
76 }
77 }
78
79 // update debug level
80 def = (Level)min(level, maxLevel);
81 }
82 return def;
83 }
84
85 //static
GetDebugLevelFromProperty(const char * name,const char * propertyName,ADebug::Level def)86 ADebug::Level ADebug::GetDebugLevelFromProperty(
87 const char *name, const char *propertyName, ADebug::Level def) {
88 char value[PROPERTY_VALUE_MAX];
89 if (property_get(propertyName, value, NULL)) {
90 return GetDebugLevelFromString(name, value, def);
91 }
92 return def;
93 }
94
95 //static
GetDebugName(const char * name)96 char *ADebug::GetDebugName(const char *name) {
97 char *debugName = strdup(name);
98 const char *terms[] = { "omx", "video", "audio" };
99 for (size_t i = 0; i < NELEM(terms) && debugName != NULL; i++) {
100 const char *term = terms[i];
101 const size_t len = strlen(term);
102 char *match = strcasestr(debugName, term);
103 if (match != NULL && (match == debugName || match[-1] == '.'
104 || match[len] == '.' || match[len] == '\0')) {
105 char *src = match + len;
106 if (match == debugName || match[-1] == '.') {
107 src += (*src == '.'); // remove trailing or double .
108 }
109 memmove(match, src, debugName + strlen(debugName) - src + 1);
110 }
111 }
112
113 return debugName;
114 }
115
116 } // namespace android
117
118