73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define EVENT_TAG_MAP_FILE "/system/etc/event-log-tags"
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struct EventTagMap;
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typedef struct EventTagMap EventTagMap;
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/*
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* Open the specified file as an event log tag map.
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*
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* Returns NULL on failure.
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*/
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EventTagMap* android_openEventTagMap(const char* fileName);
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/*
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* Close the map.
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*/
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void android_closeEventTagMap(EventTagMap* map);
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/*
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* Look up a tag by index. Returns the tag string, or NULL if not found.
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*/
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const char* android_lookupEventTag(const EventTagMap* map, unsigned int tag)
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__attribute__((
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deprecated("use android_lookupEventTag_len() instead to minimize "
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"MAP_PRIVATE copy-on-write memory impact")));
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/*
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* Look up a tag by index. Returns the tag string & string length, or NULL if
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* not found. Returned string is not guaranteed to be nul terminated.
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*/
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const char* android_lookupEventTag_len(const EventTagMap* map, size_t* len,
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unsigned int tag);
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/*
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* Look up a format by index. Returns the format string & string length,
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* or NULL if not found. Returned string is not guaranteed to be nul terminated.
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*/
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const char* android_lookupEventFormat_len(const EventTagMap* map, size_t* len,
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unsigned int tag);
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/*
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* Look up tagname, generate one if necessary, and return a tag
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*/
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int android_lookupEventTagNum(EventTagMap* map, const char* tagname,
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const char* format, int prio);
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#ifdef __cplusplus
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}
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#endif
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