blob: c0f62d39ca992e596ec2e843a66e67496b447cf3 [file] [log] [blame]
* Copyright (C) 2012-2015 The Android Open Source Project
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#pragma once
#include <sys/cdefs.h>
#include <sys/types.h>
#include <private/android_logger.h>
#include <utils/FastStrcmp.h>
// Hijack this header as a common include file used by most all sources
// to report some utilities defined here and there.
#define LOGD_SNDTIMEO 32
namespace android {
// Furnished in main.cpp. Caller must own and free returned value
char* uidToName(uid_t uid);
// Caller must own and free returned value
char* pidToName(pid_t pid);
char* tidToName(pid_t tid);
// Furnished in LogTags.cpp. Thread safe.
const char* tagToName(uint32_t tag);
// Furnished by LogKlog.cpp
char* log_strntok_r(char* s, ssize_t& len, char*& saveptr, ssize_t& sublen);
// needle should reference a string longer than 1 character
static inline const char* strnstr(const char* s, ssize_t len,
const char* needle) {
if (len <= 0) return nullptr;
const char c = *needle++;
const size_t needleLen = strlen(needle);
do {
do {
if (len <= (ssize_t)needleLen) return nullptr;
} while (*s++ != c);
} while (fastcmp<memcmp>(s, needle, needleLen));
return s;
// Returns true if the log buffer is meant for binary logs.
static inline bool IsBinary(log_id_t log_id) {
return log_id == LOG_ID_EVENTS || log_id == LOG_ID_STATS || log_id == LOG_ID_SECURITY;
// Returns the numeric log tag for binary log messages.
static inline uint32_t MsgToTag(const char* msg, uint16_t msg_len) {
if (msg_len < sizeof(android_event_header_t)) {
return 0;
return reinterpret_cast<const android_event_header_t*>(msg)->tag;
static inline bool worstUidEnabledForLogid(log_id_t id) {
return (id == LOG_ID_MAIN) || (id == LOG_ID_SYSTEM) ||
(id == LOG_ID_RADIO) || (id == LOG_ID_EVENTS);