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160 lines
4.7 KiB
160 lines
4.7 KiB
/* |
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* Copyright (C) 2006 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 <stdint.h> |
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#include <sys/types.h> |
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#include <android/log.h> |
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#include <log/event_tag_map.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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typedef enum { |
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/* Verbs */ |
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FORMAT_OFF = 0, |
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FORMAT_BRIEF, |
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FORMAT_PROCESS, |
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FORMAT_TAG, |
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FORMAT_THREAD, |
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FORMAT_RAW, |
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FORMAT_TIME, |
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FORMAT_THREADTIME, |
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FORMAT_LONG, |
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/* Adverbs. The following are modifiers to above format verbs */ |
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FORMAT_MODIFIER_COLOR, /* converts priority to color */ |
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FORMAT_MODIFIER_TIME_USEC, /* switches from msec to usec time precision */ |
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FORMAT_MODIFIER_PRINTABLE, /* converts non-printable to printable escapes */ |
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FORMAT_MODIFIER_YEAR, /* Adds year to date */ |
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FORMAT_MODIFIER_ZONE, /* Adds zone to date, + UTC */ |
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FORMAT_MODIFIER_EPOCH, /* Print time as seconds since Jan 1 1970 */ |
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FORMAT_MODIFIER_MONOTONIC, /* Print cpu time as seconds since start */ |
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FORMAT_MODIFIER_UID, /* Adds uid */ |
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FORMAT_MODIFIER_DESCRIPT, /* Adds descriptive */ |
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/* private, undocumented */ |
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FORMAT_MODIFIER_TIME_NSEC, /* switches from msec to nsec time precision */ |
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} AndroidLogPrintFormat; |
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typedef struct AndroidLogFormat_t AndroidLogFormat; |
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typedef struct AndroidLogEntry_t { |
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time_t tv_sec; |
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long tv_nsec; |
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android_LogPriority priority; |
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int32_t uid; |
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int32_t pid; |
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int32_t tid; |
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const char* tag; |
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size_t tagLen; |
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size_t messageLen; |
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const char* message; |
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} AndroidLogEntry; |
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AndroidLogFormat* android_log_format_new(); |
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void android_log_format_free(AndroidLogFormat* p_format); |
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/* currently returns 0 if format is a modifier, 1 if not */ |
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int android_log_setPrintFormat(AndroidLogFormat* p_format, |
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AndroidLogPrintFormat format); |
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/** |
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* Returns FORMAT_OFF on invalid string |
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*/ |
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AndroidLogPrintFormat android_log_formatFromString(const char* s); |
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/** |
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* filterExpression: a single filter expression |
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* eg "AT:d" |
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* |
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* returns 0 on success and -1 on invalid expression |
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* |
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* Assumes single threaded execution |
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* |
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*/ |
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int android_log_addFilterRule(AndroidLogFormat* p_format, |
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const char* filterExpression); |
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/** |
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* filterString: a whitespace-separated set of filter expressions |
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* eg "AT:d *:i" |
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* |
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* returns 0 on success and -1 on invalid expression |
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* |
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* Assumes single threaded execution |
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* |
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*/ |
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int android_log_addFilterString(AndroidLogFormat* p_format, |
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const char* filterString); |
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/** |
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* returns 1 if this log line should be printed based on its priority |
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* and tag, and 0 if it should not |
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*/ |
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int android_log_shouldPrintLine(AndroidLogFormat* p_format, const char* tag, |
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android_LogPriority pri); |
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/** |
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* Splits a wire-format buffer into an AndroidLogEntry |
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* entry allocated by caller. Pointers will point directly into buf |
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* |
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* Returns 0 on success and -1 on invalid wire format (entry will be |
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* in unspecified state) |
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*/ |
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int android_log_processLogBuffer(struct logger_entry* buf, |
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AndroidLogEntry* entry); |
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/** |
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* Like android_log_processLogBuffer, but for binary logs. |
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* |
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* If "map" is non-NULL, it will be used to convert the log tag number |
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* into a string. |
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*/ |
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int android_log_processBinaryLogBuffer(struct logger_entry* buf, |
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AndroidLogEntry* entry, |
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const EventTagMap* map, char* messageBuf, |
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int messageBufLen); |
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/** |
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* Formats a log message into a buffer |
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* |
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* Uses defaultBuffer if it can, otherwise malloc()'s a new buffer |
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* If return value != defaultBuffer, caller must call free() |
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* Returns NULL on malloc error |
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*/ |
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char* android_log_formatLogLine(AndroidLogFormat* p_format, char* defaultBuffer, |
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size_t defaultBufferSize, |
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const AndroidLogEntry* p_line, |
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size_t* p_outLength); |
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/** |
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* Either print or do not print log line, based on filter |
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* |
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* Assumes single threaded execution |
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* |
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*/ |
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int android_log_printLogLine(AndroidLogFormat* p_format, int fd, |
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const AndroidLogEntry* entry); |
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#ifdef __cplusplus |
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} |
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#endif
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