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/*
* Copyright (C) 2014 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_STATISTICS_H__
#define _LOGD_LOG_STATISTICS_H__
#include <sys/types.h>
#include <log/log.h>
#include <log/log_read.h>
#include <utils/List.h>
#define log_id_for_each(i) \
for (log_id_t i = LOG_ID_MIN; i < LOG_ID_MAX; i = (log_id_t) (i + 1))
class PidStatistics {
const pid_t pid;
// Total
size_t mSizesTotal;
size_t mElementsTotal;
// Current
size_t mSizes;
size_t mElements;
char *name;
public:
static const pid_t gone = (pid_t) -1;
PidStatistics(pid_t pid, char *name = NULL);
PidStatistics(const PidStatistics ©);
~PidStatistics();
pid_t getPid() const { return pid; }
char *getName() const { return name; }
void setName(char *name);
void add(unsigned short size);
bool subtract(unsigned short size); // returns true if stats and PID gone
void addTotal(size_t size, size_t element);
size_t sizes() const { return mSizes; }
size_t elements() const { return mElements; }
size_t sizesTotal() const { return mSizesTotal; }
size_t elementsTotal() const { return mElementsTotal; }
// helper
static char *pidToName(pid_t pid);
};
typedef android::List<PidStatistics *> PidStatisticsCollection;
class UidStatistics {
const uid_t uid;
PidStatisticsCollection Pids;
public:
UidStatistics(uid_t uid);
~UidStatistics();
PidStatisticsCollection::iterator begin() { return Pids.begin(); }
PidStatisticsCollection::iterator end() { return Pids.end(); }
uid_t getUid() { return uid; }
void add(unsigned short size, pid_t pid);
void subtract(unsigned short size, pid_t pid);
static const pid_t pid_all = (pid_t) -1;
size_t sizes(pid_t pid = pid_all);
size_t elements(pid_t pid = pid_all);
size_t sizesTotal(pid_t pid = pid_all);
size_t elementsTotal(pid_t pid = pid_all);
// helper
static char *pidToName(pid_t pid) { return PidStatistics::pidToName(pid); }
};
typedef android::List<UidStatistics *> UidStatisticsCollection;
class LidStatistics {
UidStatisticsCollection Uids;
public:
LidStatistics();
~LidStatistics();
UidStatisticsCollection::iterator begin() { return Uids.begin(); }
UidStatisticsCollection::iterator end() { return Uids.end(); }
void add(unsigned short size, uid_t uid, pid_t pid);
void subtract(unsigned short size, uid_t uid, pid_t pid);
static const pid_t pid_all = (pid_t) -1;
static const uid_t uid_all = (uid_t) -1;
size_t sizes(uid_t uid = uid_all, pid_t pid = pid_all);
size_t elements(uid_t uid = uid_all, pid_t pid = pid_all);
size_t sizesTotal(uid_t uid = uid_all, pid_t pid = pid_all);
size_t elementsTotal(uid_t uid = uid_all, pid_t pid = pid_all);
};
// Log Statistics
class LogStatistics {
LidStatistics LogIds[LOG_ID_MAX];
size_t mSizes[LOG_ID_MAX];
size_t mElements[LOG_ID_MAX];
bool dgram_qlen_statistics;
static const unsigned short mBuckets[14];
log_time mMinimum[sizeof(mBuckets) / sizeof(mBuckets[0])];
public:
const log_time start;
LogStatistics();
LidStatistics &id(log_id_t log_id) { return LogIds[log_id]; }
void enableDgramQlenStatistics() { dgram_qlen_statistics = true; }
static unsigned short dgram_qlen(unsigned short bucket);
unsigned long long minimum(unsigned short bucket);
void recordDiff(log_time diff, unsigned short bucket);
void add(unsigned short size, log_id_t log_id, uid_t uid, pid_t pid);
void subtract(unsigned short size, log_id_t log_id, uid_t uid, pid_t pid);
// fast track current value by id only
size_t sizes(log_id_t id) const { return mSizes[id]; }
size_t elements(log_id_t id) const { return mElements[id]; }
// statistical track
static const log_id_t log_id_all = (log_id_t) -1;
static const uid_t uid_all = (uid_t) -1;
static const pid_t pid_all = (pid_t) -1;
size_t sizes(log_id_t id, uid_t uid, pid_t pid = pid_all);
size_t elements(log_id_t id, uid_t uid, pid_t pid = pid_all);
size_t sizes() { return sizes(log_id_all, uid_all); }
size_t elements() { return elements(log_id_all, uid_all); }
size_t sizesTotal(log_id_t id = log_id_all,
uid_t uid = uid_all,
pid_t pid = pid_all);
size_t elementsTotal(log_id_t id = log_id_all,
uid_t uid = uid_all,
pid_t pid = pid_all);
// *strp = malloc, balance with free
void format(char **strp, uid_t uid, unsigned int logMask, log_time oldest);
// helper
static char *pidToName(pid_t pid) { return PidStatistics::pidToName(pid); }
uid_t pidToUid(pid_t pid);
};
#endif // _LOGD_LOG_STATISTICS_H__
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