platform_system_core/logd/LogUtils.h

63 lines
2.0 KiB
C++

/*
* 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LOGD_LOG_UTILS_H__
#define _LOGD_LOG_UTILS_H__
#include <sys/types.h>
#include <log/log.h>
// Hijack this header as a common include file used by most all sources
// to report some utilities defined here and there.
namespace android {
// Furnished in main.cpp. Caller must own and free returned value
char *uidToName(uid_t uid);
// Furnished in LogStatistics.cpp. Caller must own and free returned value
char *pidToName(pid_t pid);
char *tidToName(pid_t tid);
// Furnished in main.cpp. Thread safe.
const char *tagToName(uint32_t tag);
}
static inline bool worstUidEnabledForLogid(log_id_t id) {
return (id != LOG_ID_CRASH) && (id != LOG_ID_KERNEL) && (id != LOG_ID_EVENTS);
}
template <int (*cmp)(const char *l, const char *r, const size_t s)>
static inline int fast(const char *l, const char *r, const size_t s) {
return (*l != *r) || cmp(l + 1, r + 1, s - 1);
}
template <int (*cmp)(const void *l, const void *r, const size_t s)>
static inline int fast(const void *lv, const void *rv, const size_t s) {
const char *l = static_cast<const char *>(lv);
const char *r = static_cast<const char *>(rv);
return (*l != *r) || cmp(l + 1, r + 1, s - 1);
}
template <int (*cmp)(const char *l, const char *r)>
static inline int fast(const char *l, const char *r) {
return (*l != *r) || cmp(l + 1, r + 1);
}
#endif // _LOGD_LOG_UTILS_H__