571 lines
17 KiB
C++
571 lines
17 KiB
C++
/*
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* Copyright (C) 2014 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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#include <stdarg.h>
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#include <time.h>
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#include <log/logger.h>
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#include <private/android_filesystem_config.h>
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#include <utils/String8.h>
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#include "LogStatistics.h"
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PidStatistics::PidStatistics(pid_t pid)
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: pid(pid)
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, mSizesTotal(0)
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, mElementsTotal(0)
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, mSizes(0)
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, mElements(0) { }
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void PidStatistics::add(unsigned short size) {
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mSizesTotal += size;
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++mElementsTotal;
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mSizes += size;
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++mElements;
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}
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bool PidStatistics::subtract(unsigned short size) {
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mSizes -= size;
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--mElements;
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return mElements == 0 && kill(pid, 0);
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}
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void PidStatistics::addTotal(size_t size, size_t element) {
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if (pid == gone) {
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mSizesTotal += size;
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mElementsTotal += element;
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}
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}
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UidStatistics::UidStatistics(uid_t uid)
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: uid(uid) {
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Pids.clear();
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}
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UidStatistics::~UidStatistics() {
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PidStatisticsCollection::iterator it;
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for (it = begin(); it != end();) {
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delete (*it);
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it = Pids.erase(it);
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}
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}
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void UidStatistics::add(unsigned short size, pid_t pid) {
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PidStatistics *p;
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PidStatisticsCollection::iterator last;
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PidStatisticsCollection::iterator it;
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for (last = it = begin(); it != end(); last = it, ++it) {
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p = *it;
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if (pid == p->getPid()) {
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p->add(size);
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// poor-man sort, bubble upwards if bigger than last
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if ((last != it) && ((*last)->sizesTotal() < p->sizesTotal())) {
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Pids.erase(it);
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Pids.insert(last, p);
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}
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return;
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}
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}
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// poor-man sort, insert if bigger than last or last is the gone entry.
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bool insert = (last != it)
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&& ((p->getPid() == p->gone)
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|| ((*last)->sizesTotal() < (size_t) size));
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p = new PidStatistics(pid);
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if (insert) {
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Pids.insert(last, p);
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} else {
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Pids.push_back(p);
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}
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p->add(size);
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}
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void UidStatistics::subtract(unsigned short size, pid_t pid) {
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PidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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PidStatistics *p = *it;
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if (pid == p->getPid()) {
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if (p->subtract(size)) {
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size_t szsTotal = p->sizesTotal();
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size_t elsTotal = p->elementsTotal();
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delete p;
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Pids.erase(it);
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it = end();
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--it;
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if (it == end()) {
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p = new PidStatistics(p->gone);
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Pids.push_back(p);
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} else {
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p = *it;
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if (p->getPid() != p->gone) {
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p = new PidStatistics(p->gone);
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Pids.push_back(p);
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}
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}
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p->addTotal(szsTotal, elsTotal);
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}
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return;
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}
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}
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}
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size_t UidStatistics::sizes(pid_t pid) {
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size_t sizes = 0;
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PidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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PidStatistics *p = *it;
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if ((pid == pid_all) || (pid == p->getPid())) {
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sizes += p->sizes();
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}
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}
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return sizes;
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}
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size_t UidStatistics::elements(pid_t pid) {
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size_t elements = 0;
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PidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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PidStatistics *p = *it;
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if ((pid == pid_all) || (pid == p->getPid())) {
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elements += p->elements();
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}
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}
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return elements;
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}
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size_t UidStatistics::sizesTotal(pid_t pid) {
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size_t sizes = 0;
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PidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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PidStatistics *p = *it;
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if ((pid == pid_all) || (pid == p->getPid())) {
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sizes += p->sizesTotal();
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}
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}
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return sizes;
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}
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size_t UidStatistics::elementsTotal(pid_t pid) {
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size_t elements = 0;
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PidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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PidStatistics *p = *it;
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if ((pid == pid_all) || (pid == p->getPid())) {
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elements += p->elementsTotal();
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}
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}
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return elements;
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}
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LidStatistics::LidStatistics() {
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Uids.clear();
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}
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LidStatistics::~LidStatistics() {
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UidStatisticsCollection::iterator it;
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for (it = begin(); it != end();) {
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delete (*it);
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it = Uids.erase(it);
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}
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}
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void LidStatistics::add(unsigned short size, uid_t uid, pid_t pid) {
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UidStatistics *u;
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UidStatisticsCollection::iterator it;
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UidStatisticsCollection::iterator last;
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if (uid == (uid_t) -1) { // init
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uid = (uid_t) AID_ROOT;
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}
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for (last = it = begin(); it != end(); last = it, ++it) {
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u = *it;
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if (uid == u->getUid()) {
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u->add(size, pid);
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if ((last != it) && ((*last)->sizesTotal() < u->sizesTotal())) {
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Uids.erase(it);
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Uids.insert(last, u);
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}
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return;
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}
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}
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u = new UidStatistics(uid);
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if ((last != it) && ((*last)->sizesTotal() < (size_t) size)) {
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Uids.insert(last, u);
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} else {
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Uids.push_back(u);
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}
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u->add(size, pid);
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}
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void LidStatistics::subtract(unsigned short size, uid_t uid, pid_t pid) {
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UidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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UidStatistics *u = *it;
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if (uid == u->getUid()) {
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u->subtract(size, pid);
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return;
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}
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}
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}
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size_t LidStatistics::sizes(uid_t uid, pid_t pid) {
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size_t sizes = 0;
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UidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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UidStatistics *u = *it;
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if ((uid == uid_all) || (uid == u->getUid())) {
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sizes += u->sizes(pid);
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}
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}
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return sizes;
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}
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size_t LidStatistics::elements(uid_t uid, pid_t pid) {
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size_t elements = 0;
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UidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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UidStatistics *u = *it;
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if ((uid == uid_all) || (uid == u->getUid())) {
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elements += u->elements(pid);
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}
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}
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return elements;
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}
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size_t LidStatistics::sizesTotal(uid_t uid, pid_t pid) {
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size_t sizes = 0;
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UidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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UidStatistics *u = *it;
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if ((uid == uid_all) || (uid == u->getUid())) {
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sizes += u->sizesTotal(pid);
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}
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}
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return sizes;
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}
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size_t LidStatistics::elementsTotal(uid_t uid, pid_t pid) {
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size_t elements = 0;
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UidStatisticsCollection::iterator it;
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for (it = begin(); it != end(); ++it) {
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UidStatistics *u = *it;
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if ((uid == uid_all) || (uid == u->getUid())) {
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elements += u->elementsTotal(pid);
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}
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}
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return elements;
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}
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LogStatistics::LogStatistics()
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: start(CLOCK_MONOTONIC) {
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log_id_for_each(i) {
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mSizes[i] = 0;
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mElements[i] = 0;
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}
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}
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void LogStatistics::add(unsigned short size,
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log_id_t log_id, uid_t uid, pid_t pid) {
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mSizes[log_id] += size;
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++mElements[log_id];
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id(log_id).add(size, uid, pid);
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}
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void LogStatistics::subtract(unsigned short size,
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log_id_t log_id, uid_t uid, pid_t pid) {
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mSizes[log_id] -= size;
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--mElements[log_id];
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id(log_id).subtract(size, uid, pid);
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}
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size_t LogStatistics::sizes(log_id_t log_id, uid_t uid, pid_t pid) {
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if (log_id != log_id_all) {
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return id(log_id).sizes(uid, pid);
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}
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size_t sizes = 0;
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log_id_for_each(i) {
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sizes += id(i).sizes(uid, pid);
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}
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return sizes;
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}
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size_t LogStatistics::elements(log_id_t log_id, uid_t uid, pid_t pid) {
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if (log_id != log_id_all) {
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return id(log_id).elements(uid, pid);
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}
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size_t elements = 0;
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log_id_for_each(i) {
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elements += id(i).elements(uid, pid);
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}
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return elements;
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}
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size_t LogStatistics::sizesTotal(log_id_t log_id, uid_t uid, pid_t pid) {
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if (log_id != log_id_all) {
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return id(log_id).sizesTotal(uid, pid);
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}
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size_t sizes = 0;
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log_id_for_each(i) {
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sizes += id(i).sizesTotal(uid, pid);
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}
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return sizes;
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}
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size_t LogStatistics::elementsTotal(log_id_t log_id, uid_t uid, pid_t pid) {
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if (log_id != log_id_all) {
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return id(log_id).elementsTotal(uid, pid);
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}
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size_t elements = 0;
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log_id_for_each(i) {
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elements += id(i).elementsTotal(uid, pid);
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}
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return elements;
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}
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size_t LogStatistics::format(char **buf,
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uid_t uid, unsigned int logMask, log_time oldest) {
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const unsigned short spaces_current = 13;
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const unsigned short spaces_total = 19;
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if (*buf) {
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free(buf);
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*buf = NULL;
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}
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android::String8 string(" span -> size/num");
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size_t oldLength;
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short spaces = 2;
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log_id_for_each(i) {
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if (logMask & (1 << i)) {
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oldLength = string.length();
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string.appendFormat("%*s%s", spaces, "", android_log_id_to_name(i));
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spaces += spaces_total + oldLength - string.length();
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}
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}
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spaces = 1;
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log_time t(CLOCK_MONOTONIC);
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unsigned long long d = t.nsec() - start.nsec();
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string.appendFormat("\nTotal%4llu:%02llu:%02llu.%09llu",
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d / NS_PER_SEC / 60 / 60, (d / NS_PER_SEC / 60) % 60,
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(d / NS_PER_SEC) % 60, d % NS_PER_SEC);
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log_id_for_each(i) {
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if (!(logMask & (1 << i))) {
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continue;
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}
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oldLength = string.length();
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string.appendFormat("%*s%zu/%zu", spaces, "",
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sizesTotal(i), elementsTotal(i));
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spaces += spaces_total + oldLength - string.length();
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}
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spaces = 1;
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d = t.nsec() - oldest.nsec();
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string.appendFormat("\nNow%6llu:%02llu:%02llu.%09llu",
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d / NS_PER_SEC / 60 / 60, (d / NS_PER_SEC / 60) % 60,
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(d / NS_PER_SEC) % 60, d % NS_PER_SEC);
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log_id_for_each(i) {
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if (!(logMask & (1 << i))) {
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continue;
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}
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size_t els = elements(i);
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if (els) {
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oldLength = string.length();
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string.appendFormat("%*s%zu/%zu", spaces, "", sizes(i), els);
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spaces -= string.length() - oldLength;
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}
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spaces += spaces_total;
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}
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log_id_for_each(i) {
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if (!(logMask & (1 << i))) {
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continue;
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}
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bool header = false;
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bool first = true;
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UidStatisticsCollection::iterator ut;
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for(ut = id(i).begin(); ut != id(i).end(); ++ut) {
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UidStatistics *up = *ut;
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if ((uid != AID_ROOT) && (uid != up->getUid())) {
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continue;
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}
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PidStatisticsCollection::iterator pt = up->begin();
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if (pt == up->end()) {
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continue;
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}
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android::String8 intermediate;
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if (!header) {
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// header below tuned to match spaces_total and spaces_current
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spaces = 0;
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intermediate = string.format("%s: UID/PID Total size/num",
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android_log_id_to_name(i));
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string.appendFormat("\n\n%-31sNow "
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"UID/PID[?] Total Now",
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intermediate.string());
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intermediate.clear();
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header = true;
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}
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bool oneline = ++pt == up->end();
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--pt;
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if (!oneline) {
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first = true;
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} else if (!first && spaces) {
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string.appendFormat("%*s", spaces, "");
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}
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spaces = 0;
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uid_t u = up->getUid();
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pid_t p = (*pt)->getPid();
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intermediate = string.format(oneline
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? ((p == PidStatistics::gone)
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? "%d/?"
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: "%d/%d")
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: "%d",
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u, p);
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string.appendFormat((first) ? "\n%-12s" : "%-12s",
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intermediate.string());
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intermediate.clear();
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size_t elsTotal = up->elementsTotal();
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oldLength = string.length();
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string.appendFormat("%zu/%zu", up->sizesTotal(), elsTotal);
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spaces += spaces_total + oldLength - string.length();
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size_t els = up->elements();
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if (els == elsTotal) {
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string.appendFormat("%*s=", spaces, "");
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spaces = -1;
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} else if (els) {
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oldLength = string.length();
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string.appendFormat("%*s%zu/%zu", spaces, "", up->sizes(), els);
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spaces -= string.length() - oldLength;
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}
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spaces += spaces_current;
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first = !first;
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if (oneline) {
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continue;
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}
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size_t gone_szs = 0;
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size_t gone_els = 0;
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for(; pt != up->end(); ++pt) {
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PidStatistics *pp = *pt;
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pid_t p = pp->getPid();
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// If a PID no longer has any current logs, and is not
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// active anymore, skip & report totals for gone.
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elsTotal = pp->elementsTotal();
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size_t szsTotal = pp->sizesTotal();
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if (p == pp->gone) {
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gone_szs += szsTotal;
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gone_els += elsTotal;
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continue;
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}
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els = pp->elements();
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bool gone = kill(p, 0);
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if (gone && (els == 0)) {
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// ToDo: garbage collection: move this statistical bucket
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// from its current UID/PID to UID/? (races and
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// wrap around are our achilles heel). Below is
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// merely lipservice to catch PIDs that were still
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// around when the stats were pruned to zero.
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gone_szs += szsTotal;
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gone_els += elsTotal;
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continue;
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}
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if (!first && spaces) {
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string.appendFormat("%*s", spaces, "");
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}
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spaces = 0;
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intermediate = string.format((gone) ? "%d/%d?" : "%d/%d", u, p);
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string.appendFormat((first) ? "\n%-12s" : "%-12s",
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intermediate.string());
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intermediate.clear();
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oldLength = string.length();
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string.appendFormat("%zu/%zu", szsTotal, elsTotal);
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spaces += spaces_total + oldLength - string.length();
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if (els == elsTotal) {
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string.appendFormat("%*s=", spaces, "");
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spaces = -1;
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} else if (els) {
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oldLength = string.length();
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string.appendFormat("%*s%zu/%zu", spaces, "",
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pp->sizes(), els);
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spaces -= string.length() - oldLength;
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}
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spaces += spaces_current;
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first = !first;
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}
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if (gone_els) {
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if (!first && spaces) {
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string.appendFormat("%*s", spaces, "");
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}
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intermediate = string.format("%d/?", u);
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string.appendFormat((first) ? "\n%-12s" : "%-12s",
|
|
intermediate.string());
|
|
intermediate.clear();
|
|
|
|
spaces = spaces_total + spaces_current;
|
|
|
|
oldLength = string.length();
|
|
string.appendFormat("%zu/%zu", gone_szs, gone_els);
|
|
spaces -= string.length() - oldLength;
|
|
|
|
first = !first;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Calculate total buffer size prefix
|
|
char re_fmt[32];
|
|
size_t ret;
|
|
for(size_t l = string.length(), y = 0, x = 6;
|
|
y != x;
|
|
y = x, x = strlen(re_fmt) - 2) {
|
|
snprintf(re_fmt, sizeof(re_fmt), "%zu\n%%s\n\f", l + x);
|
|
ret = l + x;
|
|
}
|
|
|
|
android::String8 intermediate = string.format(re_fmt, string.string());
|
|
string.clear();
|
|
|
|
*buf = strdup(intermediate.string());
|
|
|
|
return ret;
|
|
}
|