mistserver/lib/comms.cpp
2021-10-19 22:29:40 +02:00

440 lines
14 KiB
C++

#include "auth.h"
#include "bitfields.h"
#include "comms.h"
#include "defines.h"
#include "encode.h"
#include "procs.h"
#include "timing.h"
namespace Comms{
Comms::Comms(){
index = INVALID_RECORD_INDEX;
currentSize = 0;
master = false;
}
Comms::~Comms(){
if (index != INVALID_RECORD_INDEX){setStatus(COMM_STATUS_DISCONNECT);}
if (master){
if (dataPage.mapped){
finishAll();
dataPage.master = true;
}
sem.unlink();
}
sem.close();
}
void Comms::addCommonFields(){
dataAccX.addField("status", RAX_UINT);
dataAccX.addField("command", RAX_64UINT);
dataAccX.addField("timer", RAX_UINT);
dataAccX.addField("pid", RAX_32UINT);
dataAccX.addField("killtime", RAX_64UINT);
}
void Comms::commonFieldAccess(){
status = dataAccX.getFieldAccX("status");
command = dataAccX.getFieldAccX("command");
timer = dataAccX.getFieldAccX("timer");
pid = dataAccX.getFieldAccX("pid");
killTime = dataAccX.getFieldAccX("killtime");
}
size_t Comms::firstValid() const{
if (!master){return index;}
return dataAccX.getStartPos();
}
size_t Comms::endValid() const{
if (!master){return index + 1;}
return dataAccX.getEndPos();
}
void Comms::deleteFirst(){
if (!master){return;}
dataAccX.deleteRecords(1);
}
uint8_t Comms::getStatus() const{return status.uint(index);}
uint8_t Comms::getStatus(size_t idx) const{return (master ? status.uint(idx) : 0);}
void Comms::setStatus(uint8_t _status){status.set(_status, index);}
void Comms::setStatus(uint8_t _status, size_t idx){
if (!master){return;}
status.set(_status, idx);
}
uint64_t Comms::getCommand() const{return command.uint(index);}
uint64_t Comms::getCommand(size_t idx) const{return (master ? command.uint(idx) : 0);}
void Comms::setCommand(uint64_t _cmd){command.set(_cmd, index);}
void Comms::setCommand(uint64_t _cmd, size_t idx){
if (!master){return;}
command.set(_cmd, idx);
}
uint8_t Comms::getTimer() const{return timer.uint(index);}
uint8_t Comms::getTimer(size_t idx) const{return (master ? timer.uint(idx) : 0);}
void Comms::setTimer(uint8_t _timer){timer.set(_timer, index);}
void Comms::setTimer(uint8_t _timer, size_t idx){
if (!master){return;}
timer.set(_timer, idx);
}
uint32_t Comms::getPid() const{return pid.uint(index);}
uint32_t Comms::getPid(size_t idx) const{return (master ? pid.uint(idx) : 0);}
void Comms::setPid(uint32_t _pid){pid.set(_pid, index);}
void Comms::setPid(uint32_t _pid, size_t idx){
if (!master){return;}
pid.set(_pid, idx);
}
void Comms::kill(size_t idx, bool force){
if (!master){return;}
if (force){
Util::Procs::Murder(pid.uint(idx)); // hard kill
status.set(COMM_STATUS_INVALID, idx);
return;
}
uint64_t kTime = killTime.uint(idx);
uint64_t now = Util::bootSecs();
if (!kTime){
kTime = now;
killTime.set(kTime, idx);
}
if (now - kTime > 30){
Util::Procs::Murder(pid.uint(idx)); // hard kill
status.set(COMM_STATUS_INVALID, idx);
}else{
Util::Procs::Stop(pid.uint(idx)); // soft kill
}
}
void Comms::finishAll(){
if (!master){return;}
size_t c = 0;
do{
for (size_t i = firstValid(); i < endValid(); i++){
if (getStatus(i) == COMM_STATUS_INVALID){continue;}
setStatus(COMM_STATUS_DISCONNECT, i);
}
while (getStatus(firstValid()) == COMM_STATUS_INVALID){deleteFirst();}
}while (firstValid() < endValid() && ++c < 10);
}
void Comms::keepAlive(){
if (isAlive()){setTimer(0);}
}
bool Comms::isAlive() const{
if (!*this){return false;}
if (getStatus() == COMM_STATUS_INVALID){return false;}
if (getStatus() == COMM_STATUS_DISCONNECT){return false;}
return getTimer() < 126;
}
void Comms::setMaster(bool _master){
master = _master;
dataPage.master = _master;
}
Statistics::Statistics() : Comms(){sem.open(SEM_STATISTICS, O_CREAT | O_RDWR, ACCESSPERMS, 1);}
void Statistics::unload(){
if (index != INVALID_RECORD_INDEX){setStatus(COMM_STATUS_DISCONNECT);}
index = INVALID_RECORD_INDEX;
}
void Statistics::reload(bool _master, bool reIssue){
master = _master;
bool setFields = true;
if (!currentSize){currentSize = COMMS_STATISTICS_INITSIZE;}
dataPage.init(COMMS_STATISTICS, currentSize, false, false);
if (master){
if (dataPage.mapped){
setFields = false;
dataPage.master = true;
}else{
dataPage.init(COMMS_STATISTICS, currentSize, true);
}
}
if (!dataPage.mapped){
FAIL_MSG("Unable to open page " COMMS_STATISTICS);
return;
}
if (master){
dataAccX = Util::RelAccX(dataPage.mapped, false);
if (setFields){
addCommonFields();
dataAccX.addField("sync", RAX_UINT);
dataAccX.addField("now", RAX_64UINT);
dataAccX.addField("time", RAX_64UINT);
dataAccX.addField("lastsecond", RAX_64UINT);
dataAccX.addField("down", RAX_64UINT);
dataAccX.addField("up", RAX_64UINT);
dataAccX.addField("host", RAX_STRING, 16);
dataAccX.addField("stream", RAX_STRING, 100);
dataAccX.addField("connector", RAX_STRING, 20);
dataAccX.addField("crc", RAX_32UINT);
dataAccX.setRCount((currentSize - dataAccX.getOffset()) / dataAccX.getRSize());
dataAccX.setReady();
}
}else{
dataAccX = Util::RelAccX(dataPage.mapped);
if (index == INVALID_RECORD_INDEX || reIssue){
sem.wait();
for (index = 0; index < dataAccX.getEndPos(); ++index){
if (dataAccX.getInt("status", index) == COMM_STATUS_INVALID){
// Reverse! clear entry and claim it.
dataAccX.setInt("crc", 0, index);
dataAccX.setString("connector", "", index);
dataAccX.setString("stream", "", index);
dataAccX.setString("host", "", index);
dataAccX.setInt("up", 0, index);
dataAccX.setInt("down", 0, index);
dataAccX.setInt("lastsecond", 0, index);
dataAccX.setInt("time", 0, index);
dataAccX.setInt("now", 0, index);
dataAccX.setInt("sync", 0, index);
dataAccX.setInt("killtime", 0, index);
dataAccX.setInt("pid", 0, index);
dataAccX.setInt("timer", 0, index);
dataAccX.setInt("command", 0, index);
dataAccX.setInt("status", 0, index);
break;
}
}
if (index == dataAccX.getEndPos()){dataAccX.addRecords(1);}
sem.post();
}
}
commonFieldAccess();
sync = dataAccX.getFieldAccX("sync");
now = dataAccX.getFieldAccX("now");
time = dataAccX.getFieldAccX("time");
lastSecond = dataAccX.getFieldAccX("lastsecond");
down = dataAccX.getFieldAccX("down");
up = dataAccX.getFieldAccX("up");
host = dataAccX.getFieldAccX("host");
stream = dataAccX.getFieldAccX("stream");
connector = dataAccX.getFieldAccX("connector");
crc = dataAccX.getFieldAccX("crc");
}
uint8_t Statistics::getSync() const{return sync.uint(index);}
uint8_t Statistics::getSync(size_t idx) const{return (master ? sync.uint(idx) : 0);}
void Statistics::setSync(uint8_t _sync){sync.set(_sync, index);}
void Statistics::setSync(uint8_t _sync, size_t idx){
if (!master){return;}
sync.set(_sync, idx);
}
uint64_t Statistics::getNow() const{return now.uint(index);}
uint64_t Statistics::getNow(size_t idx) const{return (master ? now.uint(idx) : 0);}
void Statistics::setNow(uint64_t _now){now.set(_now, index);}
void Statistics::setNow(uint64_t _now, size_t idx){
if (!master){return;}
now.set(_now, idx);
}
uint64_t Statistics::getTime() const{return time.uint(index);}
uint64_t Statistics::getTime(size_t idx) const{return (master ? time.uint(idx) : 0);}
void Statistics::setTime(uint64_t _time){time.set(_time, index);}
void Statistics::setTime(uint64_t _time, size_t idx){
if (!master){return;}
time.set(_time, idx);
}
uint64_t Statistics::getLastSecond() const{return lastSecond.uint(index);}
uint64_t Statistics::getLastSecond(size_t idx) const{
return (master ? lastSecond.uint(idx) : 0);
}
void Statistics::setLastSecond(uint64_t _lastSecond){lastSecond.set(_lastSecond, index);}
void Statistics::setLastSecond(uint64_t _lastSecond, size_t idx){
if (!master){return;}
lastSecond.set(_lastSecond, idx);
}
uint64_t Statistics::getDown() const{return down.uint(index);}
uint64_t Statistics::getDown(size_t idx) const{return (master ? down.uint(idx) : 0);}
void Statistics::setDown(uint64_t _down){down.set(_down, index);}
void Statistics::setDown(uint64_t _down, size_t idx){
if (!master){return;}
down.set(_down, idx);
}
uint64_t Statistics::getUp() const{return up.uint(index);}
uint64_t Statistics::getUp(size_t idx) const{return (master ? up.uint(idx) : 0);}
void Statistics::setUp(uint64_t _up){up.set(_up, index);}
void Statistics::setUp(uint64_t _up, size_t idx){
if (!master){return;}
up.set(_up, idx);
}
std::string Statistics::getHost() const{return host.string(index);}
std::string Statistics::getHost(size_t idx) const{return (master ? host.string(idx) : "");}
void Statistics::setHost(std::string _host){host.set(_host, index);}
void Statistics::setHost(std::string _host, size_t idx){
if (!master){return;}
host.set(_host, idx);
}
std::string Statistics::getStream() const{return stream.string(index);}
std::string Statistics::getStream(size_t idx) const{return (master ? stream.string(idx) : "");}
void Statistics::setStream(std::string _stream){stream.set(_stream, index);}
void Statistics::setStream(std::string _stream, size_t idx){
if (!master){return;}
stream.set(_stream, idx);
}
std::string Statistics::getConnector() const{return connector.string(index);}
std::string Statistics::getConnector(size_t idx) const{
return (master ? connector.string(idx) : "");
}
void Statistics::setConnector(std::string _connector){connector.set(_connector, index);}
void Statistics::setConnector(std::string _connector, size_t idx){
if (!master){return;}
connector.set(_connector, idx);
}
uint32_t Statistics::getCRC() const{return crc.uint(index);}
uint32_t Statistics::getCRC(size_t idx) const{return (master ? crc.uint(idx) : 0);}
void Statistics::setCRC(uint32_t _crc){crc.set(_crc, index);}
void Statistics::setCRC(uint32_t _crc, size_t idx){
if (!master){return;}
crc.set(_crc, idx);
}
std::string Statistics::getSessId() const{return getSessId(index);}
std::string Statistics::getSessId(size_t idx) const{
char res[140];
memset(res, 0, 140);
std::string tmp = host.string(idx);
memcpy(res, tmp.c_str(), (tmp.size() > 16 ? 16 : tmp.size()));
tmp = stream.string(idx);
memcpy(res + 16, tmp.c_str(), (tmp.size() > 100 ? 100 : tmp.size()));
tmp = connector.string(idx);
memcpy(res + 116, tmp.c_str(), (tmp.size() > 20 ? 20 : tmp.size()));
Bit::htobl(res + 136, crc.uint(idx));
return Secure::md5(res, 140);
}
Users::Users() : Comms(){}
Users::Users(const Users &rhs) : Comms(){
if (rhs && rhs.isAlive()){
reload(rhs.streamName, (size_t)rhs.getTrack());
if (*this){
setKeyNum(rhs.getKeyNum());
setTrack(rhs.getTrack());
}
}
}
void Users::reload(const std::string &_streamName, bool _master, bool reIssue){
streamName = _streamName;
char semName[NAME_BUFFER_SIZE];
snprintf(semName, NAME_BUFFER_SIZE, SEM_USERS, streamName.c_str());
sem.open(semName, O_CREAT | O_RDWR, ACCESSPERMS, 1);
master = _master;
if (!currentSize){currentSize = COMMS_USERS_INITSIZE;}
char userPageName[NAME_BUFFER_SIZE];
snprintf(userPageName, NAME_BUFFER_SIZE, COMMS_USERS, streamName.c_str());
bool newPage = false;
if (master){
dataPage.init(userPageName, currentSize, false, false);
if (dataPage){
dataPage.master = true;
}else{
dataPage.init(userPageName, currentSize, true);
newPage = true;
}
}else{
dataPage.init(userPageName, currentSize, false);
}
if (!dataPage.mapped){
HIGH_MSG("Unable to open page %s", userPageName);
return;
}
if (master){
if (newPage){
dataAccX = Util::RelAccX(dataPage.mapped, false);
addCommonFields();
dataAccX.addField("track", RAX_32UINT);
dataAccX.addField("keynum", RAX_32UINT);
dataAccX.setRCount((currentSize - dataAccX.getOffset()) / dataAccX.getRSize());
dataAccX.setReady();
}else{
dataAccX = Util::RelAccX(dataPage.mapped);
}
}else{
dataAccX = Util::RelAccX(dataPage.mapped);
if (index == INVALID_RECORD_INDEX || reIssue){
sem.wait();
for (index = 0; index < dataAccX.getEndPos(); ++index){
if (dataAccX.getInt("status", index) == COMM_STATUS_INVALID){
// Reverse! clear entry and claim it.
dataAccX.setInt("keynum", 0, index);
dataAccX.setInt("track", 0, index);
dataAccX.setInt("killtime", 0, index);
dataAccX.setInt("pid", 0, index);
dataAccX.setInt("timer", 0, index);
dataAccX.setInt("command", 0, index);
dataAccX.setInt("status", 0, index);
break;
}
}
if (index == dataAccX.getEndPos()){dataAccX.addRecords(1);}
sem.post();
}
}
commonFieldAccess();
track = dataAccX.getFieldAccX("track");
keyNum = dataAccX.getFieldAccX("keynum");
setPid(getpid());
}
void Users::reload(const std::string &_streamName, size_t idx, uint8_t initialState){
reload(_streamName);
if (dataPage.mapped){
setTrack(idx);
setStatus(initialState);
}
}
uint32_t Users::getTrack() const{return track.uint(index);}
uint32_t Users::getTrack(size_t idx) const{return (master ? track.uint(idx) : 0);}
void Users::setTrack(uint32_t _track){track.set(_track, index);}
void Users::setTrack(uint32_t _track, size_t idx){
if (!master){return;}
track.set(_track, idx);
}
size_t Users::getKeyNum() const{return keyNum.uint(index);}
size_t Users::getKeyNum(size_t idx) const{return (master ? keyNum.uint(idx) : 0);}
void Users::setKeyNum(size_t _keyNum){keyNum.set(_keyNum, index);}
void Users::setKeyNum(size_t _keyNum, size_t idx){
if (!master){return;}
keyNum.set(_keyNum, idx);
}
}// namespace Comms