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Adding Code for Linux

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This commit is contained in:
Steffen Gaisser
2018-07-13 18:28:26 +02:00
parent db1f93a155
commit fd782b20c0
90 changed files with 2411 additions and 1497 deletions
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211
osal/linux/Clock.cpp Normal file
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#include <sys/time.h>
#include <time.h>
#include <framework/timemanager/Clock.h>
#include <sys/sysinfo.h>
#include <linux/sysinfo.h>
#include <unistd.h>
//#include <fstream>
uint16_t Clock::leapSeconds = 0;
MutexIF* Clock::timeMutex = NULL;
uint32_t Clock::getTicksPerSecond(void){
uint32_t ticks = sysconf(_SC_CLK_TCK);
return ticks;
}
ReturnValue_t Clock::setClock(const TimeOfDay_t* time) {
timespec timeUnix;
timeval timeTimeval;
convertTimeOfDayToTimeval(time,&timeTimeval);
timeUnix.tv_sec = timeTimeval.tv_sec;
timeUnix.tv_nsec = (__syscall_slong_t) timeTimeval.tv_usec * 1000;
int status = clock_settime(CLOCK_REALTIME,&timeUnix);
if(status!=0){
//TODO errno
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::setClock(const timeval* time) {
timespec timeUnix;
timeUnix.tv_sec = time->tv_sec;
timeUnix.tv_nsec = (__syscall_slong_t) time->tv_usec * 1000;
int status = clock_settime(CLOCK_REALTIME,&timeUnix);
if(status!=0){
//TODO errno
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::getClock_timeval(timeval* time) {
timespec timeUnix;
int status = clock_gettime(CLOCK_REALTIME,&timeUnix);
if(status!=0){
return HasReturnvaluesIF::RETURN_FAILED;
}
time->tv_sec = timeUnix.tv_sec;
time->tv_usec = timeUnix.tv_nsec / 1000.0;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::getClock_usecs(uint64_t* time) {
timeval timeVal;
ReturnValue_t result = getClock_timeval(&timeVal);
if(result != HasReturnvaluesIF::RETURN_OK){
return result;
}
*time = (uint64_t)timeVal.tv_sec*1e6 + timeVal.tv_usec;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::getUptime(timeval* uptime) {
//TODO This is not posix compatible and delivers only seconds precision
struct sysinfo sysInfo;
int result = sysinfo(&sysInfo);
if(result != 0){
return HasReturnvaluesIF::RETURN_FAILED;
}
uptime->tv_sec = sysInfo.uptime;
uptime->tv_usec = 0;
//Linux specific file read but more precise
// double uptimeSeconds;
// if(std::ifstream("/proc/uptime",std::ios::in) >> uptimeSeconds){
// uptime->tv_sec = uptimeSeconds;
// uptime->tv_usec = uptimeSeconds *(double) 1e6 - (uptime->tv_sec *1e6);
// }
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::getUptime(uint32_t* uptimeMs) {
timeval uptime;
ReturnValue_t result = getUptime(&uptime);
if(result != HasReturnvaluesIF::RETURN_OK){
return result;
}
*uptimeMs = uptime.tv_sec * 1e3 + uptime.tv_usec / 1e3;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::getDateAndTime(TimeOfDay_t* time) {
timespec timeUnix;
int status = clock_gettime(CLOCK_REALTIME,&timeUnix);
if(status != 0){
//TODO errno
return HasReturnvaluesIF::RETURN_FAILED;
}
struct tm* timeInfo;
timeInfo = gmtime(&timeUnix.tv_sec);
time->year = timeInfo->tm_year + 1900;
time->month = timeInfo->tm_mon+1;
time->day = timeInfo->tm_mday;
time->hour = timeInfo->tm_hour;
time->minute = timeInfo->tm_min;
time->second = timeInfo->tm_sec;
time->usecond = timeUnix.tv_nsec / 1000.0;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::convertTimeOfDayToTimeval(const TimeOfDay_t* from,
timeval* to) {
tm fromTm;
//Note: Fails for years before AD
fromTm.tm_year = from->year - 1900;
fromTm.tm_mon = from->month - 1;
fromTm.tm_mday = from->day;
fromTm.tm_hour = from->hour;
fromTm.tm_min = from->minute;
fromTm.tm_sec = from->second;
to->tv_sec = mktime(&fromTm);
to->tv_usec = from->usecond;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::convertTimevalToJD2000(timeval time, double* JD2000) {
*JD2000 = (time.tv_sec - 946728000. + time.tv_usec / 1000000.) / 24.
/ 3600.;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::convertUTCToTT(timeval utc, timeval* tt) {
//SHOULDDO: works not for dates in the past (might have less leap seconds)
if (timeMutex == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
uint16_t leapSeconds;
ReturnValue_t result = getLeapSeconds(&leapSeconds);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
timeval leapSeconds_timeval = { 0, 0 };
leapSeconds_timeval.tv_sec = leapSeconds;
//initial offset between UTC and TAI
timeval UTCtoTAI1972 = { 10, 0 };
timeval TAItoTT = { 32, 184000 };
*tt = utc + leapSeconds_timeval + UTCtoTAI1972 + TAItoTT;
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t Clock::setLeapSeconds(const uint16_t leapSeconds_) {
if(checkOrCreateClockMutex()!=HasReturnvaluesIF::RETURN_OK){
return HasReturnvaluesIF::RETURN_FAILED;
}
ReturnValue_t result = timeMutex->lockMutex(MutexIF::NO_TIMEOUT);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
leapSeconds = leapSeconds_;
result = timeMutex->unlockMutex();
return result;
}
ReturnValue_t Clock::getLeapSeconds(uint16_t* leapSeconds_) {
if(timeMutex==NULL){
return HasReturnvaluesIF::RETURN_FAILED;
}
ReturnValue_t result = timeMutex->lockMutex(MutexIF::NO_TIMEOUT);
if (result != HasReturnvaluesIF::RETURN_OK) {
return result;
}
*leapSeconds_ = leapSeconds;
result = timeMutex->unlockMutex();
return result;
}
ReturnValue_t Clock::checkOrCreateClockMutex(){
if(timeMutex==NULL){
MutexFactory* mutexFactory = MutexFactory::instance();
if (mutexFactory == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
timeMutex = mutexFactory->createMutex();
if (timeMutex == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
}
return HasReturnvaluesIF::RETURN_OK;
}

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osal/linux/FixedTimeslotTask.cpp Normal file
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#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <unistd.h>
#include <limits.h>
#include <signal.h>
#include <errno.h>
#include <framework/osal/linux/FixedTimeslotTask.h>
uint32_t FixedTimeslotTask::deadlineMissedCount = 0;
const size_t PeriodicTaskIF::MINIMUM_STACK_SIZE = PTHREAD_STACK_MIN;
FixedTimeslotTask::FixedTimeslotTask(const char* name_, int priority_, size_t stackSize_, uint32_t periodMs_):PosixThread(name_,priority_,stackSize_),pst(periodMs_),started(false) {
}
FixedTimeslotTask::~FixedTimeslotTask() {
}
void* FixedTimeslotTask::taskEntryPoint(void* arg) {
//The argument is re-interpreted as PollingTask.
FixedTimeslotTask *originalTask(reinterpret_cast<FixedTimeslotTask*>(arg));
//The task's functionality is called.
originalTask->taskFunctionality();
return NULL;
}
ReturnValue_t FixedTimeslotTask::startTask() {
started = true;
createTask(&taskEntryPoint,this);
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t FixedTimeslotTask::sleepFor(uint32_t ms) {
return PosixThread::sleep((uint64_t)ms*1000000);
}
uint32_t FixedTimeslotTask::getPeriodMs() const {
return pst.getLengthMs();
}
ReturnValue_t FixedTimeslotTask::addSlot(object_id_t componentId,
uint32_t slotTimeMs, int8_t executionStep) {
pst.addSlot(componentId, slotTimeMs, executionStep, this);
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t FixedTimeslotTask::checkSequence() const {
return pst.checkSequence();
}
void FixedTimeslotTask::taskFunctionality() {
//Like FreeRTOS pthreads are running as soon as they are created
if (!started) {
suspend();
}
// A local iterator for the Polling Sequence Table is created to find the start time for the first entry.
std::list<FixedSequenceSlot*>::iterator it = pst.current;
//The start time for the first entry is read.
uint64_t lastWakeTime = getCurrentMonotonicTimeMs();
uint64_t interval = pst.getIntervalToNextSlotMs();
//The task's "infinite" inner loop is entered.
while (1) {
if (pst.slotFollowsImmediately()) {
//Do nothing
} else {
//The interval for the next polling slot is selected.
interval = this->pst.getIntervalToPreviousSlotMs();
//The period is checked and restarted with the new interval.
//If the deadline was missed, the deadlineMissedFunc is called.
if(!PosixThread::delayUntil(&lastWakeTime,interval)) {
//No time left on timer -> we missed the deadline
missedDeadlineCounter();
}
}
//The device handler for this slot is executed and the next one is chosen.
this->pst.executeAndAdvance();
}
}
void FixedTimeslotTask::missedDeadlineCounter() {
FixedTimeslotTask::deadlineMissedCount++;
if (FixedTimeslotTask::deadlineMissedCount % 10 == 0) {
error << "PST missed " << FixedTimeslotTask::deadlineMissedCount
<< " deadlines." << std::endl;
}
}

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osal/linux/FixedTimeslotTask.h Normal file
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#ifndef FRAMEWORK_OSAL_LINUX_FIXEDTIMESLOTTASK_H_
#define FRAMEWORK_OSAL_LINUX_FIXEDTIMESLOTTASK_H_
#include <framework/tasks/FixedTimeslotTaskIF.h>
#include <framework/devicehandlers/FixedSlotSequence.h>
#include <framework/osal/linux/PosixThread.h>
#include <pthread.h>
class FixedTimeslotTask: public FixedTimeslotTaskIF, public PosixThread {
public:
FixedTimeslotTask(const char* name_, int priority_, size_t stackSize_, uint32_t periodMs_);
virtual ~FixedTimeslotTask();
virtual ReturnValue_t startTask();
virtual ReturnValue_t sleepFor(uint32_t ms);
virtual uint32_t getPeriodMs() const;
virtual ReturnValue_t addSlot(object_id_t componentId, uint32_t slotTimeMs, int8_t executionStep);
virtual ReturnValue_t checkSequence() const;
/**
* This static function can be used as #deadlineMissedFunc.
* It counts missedDeadlines and prints the number of missed deadlines every 10th time.
*/
static void missedDeadlineCounter();
/**
* A helper variable to count missed deadlines.
*/
static uint32_t deadlineMissedCount;
protected:
/**
* @brief This function holds the main functionality of the thread.
*
*
* @details Holding the main functionality of the task, this method is most important.
* It links the functionalities provided by FixedSlotSequence with the OS's System Calls
* to keep the timing of the periods.
*/
virtual void taskFunctionality();
private:
/**
* @brief This is the entry point in a new thread.
*
* @details This method, that is the entry point in the new thread and calls taskFunctionality of the child class.
* Needs a valid pointer to the derived class.
*/
static void* taskEntryPoint(void* arg);
FixedSlotSequence pst;
bool started;
};
#endif /* FRAMEWORK_OSAL_LINUX_FIXEDTIMESLOTTASK_H_ */

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osal/linux/InternalErrorCodes.cpp Normal file
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#include <framework/osal/InternalErrorCodes.h>
ReturnValue_t InternalErrorCodes::translate(uint8_t code) {
//TODO This class can be removed
return HasReturnvaluesIF::RETURN_FAILED;
}
InternalErrorCodes::InternalErrorCodes() {
}
InternalErrorCodes::~InternalErrorCodes() {
}

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osal/linux/MessageQueue.cpp Normal file
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#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <fcntl.h> /* For O_* constants */
#include <sys/stat.h> /* For mode constants */
#include <mqueue.h>
#include <cstring>
#include <errno.h>
#include <framework/osal/linux/MessageQueue.h>
MessageQueue::MessageQueue(size_t message_depth, size_t max_message_size) :
id(0), lastPartner(0), defaultDestination(NO_QUEUE), internalErrorReporter(
NULL) {
//debug << "MessageQueue::MessageQueue: Creating a queue" << std::endl;
mq_attr attributes;
this->id = 0;
//Set attributes
attributes.mq_curmsgs = 0;
attributes.mq_maxmsg = message_depth;
attributes.mq_msgsize = max_message_size;
attributes.mq_flags = 0; //Flags are ignored on Linux during mq_open
//Set the name of the queue
sprintf(name, "/Q%u\n", queueCounter++);
//Create a nonblocking queue if the name is available (the queue is Read and writable for the owner as well as the group)
mqd_t tempId = mq_open(name, O_NONBLOCK | O_RDWR | O_CREAT | O_EXCL,
S_IWUSR | S_IREAD | S_IWGRP | S_IRGRP | S_IROTH | S_IWOTH, &attributes);
if (tempId == -1) {
//An error occured during open
//We need to distinguish if it is caused by an already created queue
if (errno == EEXIST) {
//There's another queue with the same name
//We unlink the other queue
int status = mq_unlink(name);
if (status != 0) {
error << "mq_unlink Failed with status: " << strerror(errno)
<< std::endl;
} else {
//Successful unlinking, try to open again
mqd_t tempId = mq_open(name,
O_NONBLOCK | O_RDWR | O_CREAT | O_EXCL,
S_IWUSR | S_IREAD | S_IWGRP | S_IRGRP, &attributes);
if (tempId != -1) {
//Successful mq_open
this->id = tempId;
return;
}
}
}
//Failed either the first time or the second time
error << "MessageQueue::MessageQueue: Creating Queue " << std::hex
<< name << std::dec << " failed with status: "
<< strerror(errno) << std::endl;
} else {
//Successful mq_open call
this->id = tempId;
}
}
MessageQueue::~MessageQueue() {
int status = mq_close(this->id);
if(status != 0){
error << "MessageQueue::Destructor: mq_close Failed with status: " << strerror(errno) <<std::endl;
}
status = mq_unlink(name);
if(status != 0){
error << "MessageQueue::Destructor: mq_unlink Failed with status: " << strerror(errno) <<std::endl;
}
}
ReturnValue_t MessageQueue::sendMessage(MessageQueueId_t sendTo,
MessageQueueMessage* message, bool ignoreFault) {
return sendMessageFrom(sendTo, message, this->getId(), false);
}
ReturnValue_t MessageQueue::sendToDefault(MessageQueueMessage* message) {
return sendToDefaultFrom(message, this->getId());
}
ReturnValue_t MessageQueue::reply(MessageQueueMessage* message) {
if (this->lastPartner != 0) {
return sendMessageFrom(this->lastPartner, message, this->getId());
} else {
//TODO: Good returnCode
return HasReturnvaluesIF::RETURN_FAILED;
}
}
ReturnValue_t MessageQueue::receiveMessage(MessageQueueMessage* message,
MessageQueueId_t* receivedFrom) {
ReturnValue_t status = this->receiveMessage(message);
*receivedFrom = this->lastPartner;
return status;
}
ReturnValue_t MessageQueue::receiveMessage(MessageQueueMessage* message) {
unsigned int messagePriority = 0;
int status = mq_receive(id,reinterpret_cast<char*>(message->getBuffer()),message->MAX_MESSAGE_SIZE,&messagePriority);
if (status > 0) {
this->lastPartner = message->getSender();
//Check size of incoming message.
if (message->messageSize < message->getMinimumMessageSize()) {
return HasReturnvaluesIF::RETURN_FAILED;
}
return HasReturnvaluesIF::RETURN_OK;
}else if(status==0){
//Success but no message received
return MessageQueueIF::EMPTY;
} else {
//No message was received. Keep lastPartner anyway, I might send something later.
//But still, delete packet content.
memset(message->getData(), 0, message->MAX_DATA_SIZE);
switch(errno){
case EAGAIN:
//O_NONBLOCK or MQ_NONBLOCK was set and there are no messages currently on the specified queue.
return MessageQueueIF::EMPTY;
case EBADF:
//mqdes doesn't represent a valid queue open for reading.
error << "MessageQueue::receive: configuration error " << strerror(errno) << std::endl;
/*NO BREAK*/
case EINVAL:
/*
* This value indicates one of the following:
* * The pointer to the buffer for storing the received message, msg_ptr, is NULL.
* * The number of bytes requested, msg_len is less than zero.
* * msg_len is anything other than the mq_msgsize of the specified queue, and the QNX extended option MQ_READBUF_DYNAMIC hasn't been set in the queue's mq_flags.
*/
error << "MessageQueue::receive: configuration error " << strerror(errno) << std::endl;
/*NO BREAK*/
case EMSGSIZE:
/*
* This value indicates one of the following:
* * the QNX extended option MQ_READBUF_DYNAMIC hasn't been set, and the given msg_len is shorter than the mq_msgsize for the given queue.
* * the extended option MQ_READBUF_DYNAMIC has been set, but the given msg_len is too short for the message that would have been received.
*/
error << "MessageQueue::receive: configuration error " << strerror(errno) << std::endl;
/*NO BREAK*/
case EINTR:
//The operation was interrupted by a signal.
default:
return HasReturnvaluesIF::RETURN_FAILED;
}
}
}
MessageQueueId_t MessageQueue::getLastPartner() const {
return this->lastPartner;
}
ReturnValue_t MessageQueue::flush(uint32_t* count) {
mq_attr attrib;
int status = mq_getattr(id,&attrib);
if(status != 0){
switch(errno){
case EBADF:
//mqdes doesn't represent a valid message queue.
error << "MessageQueue::flush configuration error, called flush with an invalid queue ID" << std::endl;
/*NO BREAK*/
case EINVAL:
//mq_attr is NULL
default:
return HasReturnvaluesIF::RETURN_FAILED;
}
}
*count = attrib.mq_curmsgs;
attrib.mq_curmsgs = 0;
status = mq_setattr(id,&attrib,NULL);
if(status != 0){
switch(errno){
case EBADF:
//mqdes doesn't represent a valid message queue.
error << "MessageQueue::flush configuration error, called flush with an invalid queue ID" << std::endl;
/*NO BREAK*/
case EINVAL:
/*
* This value indicates one of the following:
* * mq_attr is NULL.
* * MQ_MULT_NOTIFY had been set for this queue, and the given mq_flags includes a 0 in the MQ_MULT_NOTIFY bit. Once MQ_MULT_NOTIFY has been turned on, it may never be turned off.
*
*/
default:
return HasReturnvaluesIF::RETURN_FAILED;
}
}
return HasReturnvaluesIF::RETURN_OK;
}
MessageQueueId_t MessageQueue::getId() const {
return this->id;
}
void MessageQueue::setDefaultDestination(MessageQueueId_t defaultDestination) {
this->defaultDestination = defaultDestination;
}
ReturnValue_t MessageQueue::sendMessageFrom(MessageQueueId_t sendTo,
MessageQueueMessage* message, MessageQueueId_t sentFrom,
bool ignoreFault) {
message->setSender(sentFrom);
int result = mq_send(sendTo,
reinterpret_cast<const char*>(message->getBuffer()), message->messageSize,0);
//TODO: Check if we're in ISR.
if (result != 0 && !ignoreFault) {
if (internalErrorReporter == NULL) {
internalErrorReporter = objectManager->get<InternalErrorReporterIF>(
objects::INTERNAL_ERROR_REPORTER);
}
if (internalErrorReporter != NULL) {
internalErrorReporter->queueMessageNotSent();
}
switch(errno){
case EAGAIN:
//The O_NONBLOCK flag was set when opening the queue, or the MQ_NONBLOCK flag was set in its attributes, and the specified queue is full.
return MessageQueueIF::FULL;
case EBADF:
//mq_des doesn't represent a valid message queue descriptor, or mq_des wasn't opened for writing.
error << "MessageQueue::sendMessage: Configuration error " << strerror(errno) << " in mq_send mqSendTo: " << sendTo << " sent from " << sentFrom << std::endl;
/*NO BREAK*/
case EINTR:
//The call was interrupted by a signal.
case EINVAL:
/*
* This value indicates one of the following:
* * msg_ptr is NULL.
* * msg_len is negative.
* * msg_prio is greater than MQ_PRIO_MAX.
* * msg_prio is less than 0.
* * MQ_PRIO_RESTRICT is set in the mq_attr of mq_des, and msg_prio is greater than the priority of the calling process.
* */
error << "MessageQueue::sendMessage: Configuration error " << strerror(errno) << " in mq_send" << std::endl;
/*NO BREAK*/
case EMSGSIZE:
//The msg_len is greater than the msgsize associated with the specified queue.
default:
return HasReturnvaluesIF::RETURN_FAILED;
}
}
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t MessageQueue::sendToDefaultFrom(MessageQueueMessage* message,
MessageQueueId_t sentFrom, bool ignoreFault) {
return sendMessageFrom(defaultDestination, message, sentFrom, ignoreFault);
}
MessageQueueId_t MessageQueue::getDefaultDestination() const {
return this->defaultDestination;
}
bool MessageQueue::isDefaultDestinationSet() const {
return (defaultDestination != NO_QUEUE);
}
uint16_t MessageQueue::queueCounter = 0;

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#ifndef MESSAGEQUEUE_H_
#define MESSAGEQUEUE_H_
#include <framework/internalError/InternalErrorReporterIF.h>
#include <framework/ipc/MessageQueueIF.h>
#include <framework/ipc/MessageQueueMessage.h>
/**
* @brief This class manages sending and receiving of message queue messages.
*
* @details Message queues are used to pass asynchronous messages between processes.
* They work like post boxes, where all incoming messages are stored in FIFO
* order. This class creates a new receiving queue and provides methods to fetch
* received messages. Being a child of MessageQueueSender, this class also provides
* methods to send a message to a user-defined or a default destination. In addition
* it also provides a reply method to answer to the queue it received its last message
* from.
* The MessageQueue should be used as "post box" for a single owning object. So all
* message queue communication is "n-to-one".
* For creating the queue, as well as sending and receiving messages, the class makes
* use of the operating system calls provided.
* \ingroup message_queue
*/
class MessageQueue : public MessageQueueIF {
public:
/**
* @brief The constructor initializes and configures the message queue.
* @details By making use of the according operating system call, a message queue is created
* and initialized. The message depth - the maximum number of messages to be
* buffered - may be set with the help of a parameter, whereas the message size is
* automatically set to the maximum message queue message size. The operating system
* sets the message queue id, or i case of failure, it is set to zero.
* @param message_depth The number of messages to be buffered before passing an error to the
* sender. Default is three.
* @param max_message_size With this parameter, the maximum message size can be adjusted.
* This should be left default.
*/
MessageQueue( size_t message_depth = 3, size_t max_message_size = MessageQueueMessage::MAX_MESSAGE_SIZE );
/**
* @brief The destructor deletes the formerly created message queue.
* @details This is accomplished by using the delete call provided by the operating system.
*/
virtual ~MessageQueue();
/**
* @brief This operation sends a message to the given destination.
* @details It directly uses the sendMessage call of the MessageQueueSender parent, but passes its
* queue id as "sentFrom" parameter.
* @param sendTo This parameter specifies the message queue id of the destination message queue.
* @param message A pointer to a previously created message, which is sent.
* @param ignoreFault If set to true, the internal software fault counter is not incremented if queue is full.
*/
virtual ReturnValue_t sendMessage(MessageQueueId_t sendTo,
MessageQueueMessage* message, bool ignoreFault = false );
/**
* @brief This operation sends a message to the default destination.
* @details As in the sendMessage method, this function uses the sendToDefault call of the
* MessageQueueSender parent class and adds its queue id as "sentFrom" information.
* @param message A pointer to a previously created message, which is sent.
*/
virtual ReturnValue_t sendToDefault( MessageQueueMessage* message );
/**
* @brief This operation sends a message to the last communication partner.
* @details This operation simplifies answering an incoming message by using the stored
* lastParnter information as destination. If there was no message received yet
* (i.e. lastPartner is zero), an error code is returned.
* @param message A pointer to a previously created message, which is sent.
*/
ReturnValue_t reply( MessageQueueMessage* message );
/**
* @brief This function reads available messages from the message queue and returns the sender.
* @details It works identically to the other receiveMessage call, but in addition returns the
* sender's queue id.
* @param message A pointer to a message in which the received data is stored.
* @param receivedFrom A pointer to a queue id in which the sender's id is stored.
*/
ReturnValue_t receiveMessage(MessageQueueMessage* message,
MessageQueueId_t *receivedFrom);
/**
* @brief This function reads available messages from the message queue.
* @details If data is available it is stored in the passed message pointer. The message's
* original content is overwritten and the sendFrom information is stored in the
* lastPartner attribute. Else, the lastPartner information remains untouched, the
* message's content is cleared and the function returns immediately.
* @param message A pointer to a message in which the received data is stored.
*/
ReturnValue_t receiveMessage(MessageQueueMessage* message);
/**
* Deletes all pending messages in the queue.
* @param count The number of flushed messages.
* @return RETURN_OK on success.
*/
ReturnValue_t flush(uint32_t* count);
/**
* @brief This method returns the message queue id of the last communication partner.
*/
MessageQueueId_t getLastPartner() const;
/**
* @brief This method returns the message queue id of this class's message queue.
*/
MessageQueueId_t getId() const;
/**
* \brief With the sendMessage call, a queue message is sent to a receiving queue.
* \details This method takes the message provided, adds the sentFrom information and passes
* it on to the destination provided with an operating system call. The OS's return
* value is returned.
* \param sendTo This parameter specifies the message queue id to send the message to.
* \param message This is a pointer to a previously created message, which is sent.
* \param sentFrom The sentFrom information can be set to inject the sender's queue id into the message.
* This variable is set to zero by default.
* \param ignoreFault If set to true, the internal software fault counter is not incremented if queue is full.
*/
virtual ReturnValue_t sendMessageFrom( MessageQueueId_t sendTo, MessageQueueMessage* message, MessageQueueId_t sentFrom, bool ignoreFault = false );
/**
* \brief The sendToDefault method sends a queue message to the default destination.
* \details In all other aspects, it works identical to the sendMessage method.
* \param message This is a pointer to a previously created message, which is sent.
* \param sentFrom The sentFrom information can be set to inject the sender's queue id into the message.
* This variable is set to zero by default.
*/
virtual ReturnValue_t sendToDefaultFrom( MessageQueueMessage* message, MessageQueueId_t sentFrom = NO_QUEUE, bool ignoreFault = false );
/**
* \brief This method is a simple setter for the default destination.
*/
void setDefaultDestination(MessageQueueId_t defaultDestination);
/**
* \brief This method is a simple getter for the default destination.
*/
MessageQueueId_t getDefaultDestination() const;
bool isDefaultDestinationSet() const;
private:
/**
* @brief The class stores the queue id it got assigned from the operating system in this attribute.
* If initialization fails, the queue id is set to zero.
*/
MessageQueueId_t id;
/**
* @brief In this attribute, the queue id of the last communication partner is stored
* to allow for replying.
*/
MessageQueueId_t lastPartner;
/**
* @brief The message queue's name -a user specific information for the operating system- is
* generated automatically with the help of this static counter.
*/
/**
* \brief This attribute stores a default destination to send messages to.
* \details It is stored to simplify sending to always-the-same receiver. The attribute may
* be set in the constructor or by a setter call to setDefaultDestination.
*/
MessageQueueId_t defaultDestination;
/**
* \brief This attribute stores a reference to the internal error reporter for reporting full queues.
* \details In the event of a full destination queue, the reporter will be notified. The reference is set
* by lazy loading
*/
InternalErrorReporterIF *internalErrorReporter;
/**
* The name of the message queue, stored for unlinking
*/
char name[5];
static uint16_t queueCounter;
};
#endif /* MESSAGEQUEUE_H_ */

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#include <framework/osal/linux/Mutex.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <framework/timemanager/Clock.h>
const uint32_t MutexIF::NO_TIMEOUT = 0;
uint8_t Mutex::count = 0;
#include <cstring>
#include <errno.h>
Mutex::Mutex() {
pthread_mutexattr_t mutexAttr;
int status = pthread_mutexattr_init(&mutexAttr);
if (status != 0) {
error << "Mutex: Attribute init failed with: " << strerror(status) << std::endl;
}
status = pthread_mutexattr_setprotocol(&mutexAttr, PTHREAD_PRIO_INHERIT);
if (status != 0) {
error << "Mutex: Attribute set PRIO_INHERIT failed with: " << strerror(status)
<< std::endl;
}
status = pthread_mutex_init(&mutex, &mutexAttr);
if (status != 0) {
error << "Mutex: creation with name, id " << mutex.__data.__count
<< ", " << " failed with " << strerror(status) << std::endl;
}
//After a mutex attributes object has been used to initialize one or more mutexes, any function affecting the attributes object (including destruction) shall not affect any previously initialized mutexes.
status = pthread_mutexattr_destroy(&mutexAttr);
if (status != 0) {
error << "Mutex: Attribute destroy failed with " << strerror(status) << std::endl;
}
}
Mutex::~Mutex() {
//No Status check yet
pthread_mutex_destroy(&mutex);
}
ReturnValue_t Mutex::lockMutex(uint32_t timeoutMs) {
int status = 0;
if (timeoutMs != MutexIF::NO_TIMEOUT) {
timespec timeOut;
clock_gettime(CLOCK_REALTIME, &timeOut);
uint64_t nseconds = timeOut.tv_sec * 1000000000 + timeOut.tv_nsec;
nseconds += timeoutMs * 1000000;
timeOut.tv_sec = nseconds / 1000000000;
timeOut.tv_nsec = nseconds - timeOut.tv_sec * 1000000000;
status = pthread_mutex_timedlock(&mutex, &timeOut);
} else {
status = pthread_mutex_lock(&mutex);
}
switch (status) {
case EINVAL:
//The mutex was created with the protocol attribute having the value PTHREAD_PRIO_PROTECT and the calling thread's priority is higher than the mutex's current priority ceiling.
return WRONG_ATTRIBUTE_SETTING;
//The process or thread would have blocked, and the abs_timeout parameter specified a nanoseconds field value less than zero or greater than or equal to 1000 million.
//The value specified by mutex does not refer to an initialized mutex object.
//return MUTEX_NOT_FOUND;
case EBUSY:
//The mutex could not be acquired because it was already locked.
return MUTEX_ALREADY_LOCKED;
case ETIMEDOUT:
//The mutex could not be locked before the specified timeout expired.
return MUTEX_TIMEOUT;
case EAGAIN:
//The mutex could not be acquired because the maximum number of recursive locks for mutex has been exceeded.
return MUTEX_MAX_LOCKS;
case EDEADLK:
//A deadlock condition was detected or the current thread already owns the mutex.
return CURR_THREAD_ALREADY_OWNS_MUTEX;
case 0:
//Success
return HasReturnvaluesIF::RETURN_OK;
default:
return HasReturnvaluesIF::RETURN_FAILED;
};
}
ReturnValue_t Mutex::unlockMutex() {
int status = pthread_mutex_unlock(&mutex);
switch (status) {
case EINVAL:
//The value specified by mutex does not refer to an initialized mutex object.
return MUTEX_NOT_FOUND;
case EAGAIN:
//The mutex could not be acquired because the maximum number of recursive locks for mutex has been exceeded.
return MUTEX_MAX_LOCKS;
case EPERM:
//The current thread does not own the mutex.
return CURR_THREAD_DOES_NOT_OWN_MUTEX;
case 0:
//Success
return HasReturnvaluesIF::RETURN_OK;
default:
return HasReturnvaluesIF::RETURN_FAILED;
};
}

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#ifndef OS_RTEMS_MUTEX_H_
#define OS_RTEMS_MUTEX_H_
#include <framework/ipc/MutexIF.h>
#include <pthread.h>
class Mutex : public MutexIF {
public:
Mutex();
virtual ~Mutex();
virtual ReturnValue_t lockMutex(uint32_t timeoutMs);
virtual ReturnValue_t unlockMutex();
private:
pthread_mutex_t mutex;
static uint8_t count;
};
#endif /* OS_RTEMS_MUTEX_H_ */

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#include <framework/ipc/MutexFactory.h>
#include <framework/osal/linux/Mutex.h>
//TODO: Different variant than the lazy loading in QueueFactory. What's better and why?
MutexFactory* MutexFactory::factoryInstance = new MutexFactory();
MutexFactory::MutexFactory() {
}
MutexFactory::~MutexFactory() {
}
MutexFactory* MutexFactory::instance() {
return MutexFactory::factoryInstance;
}
MutexIF* MutexFactory::createMutex() {
return new Mutex();
}
void MutexFactory::deleteMutex(MutexIF* mutex) {
delete mutex;
}

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#include <framework/tasks/ExecutableObjectIF.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <errno.h>
#include <framework/osal/linux/PeriodicPosixTask.h>
PeriodicPosixTask::PeriodicPosixTask(const char* name_, int priority_, size_t stackSize_, uint32_t period_, void(deadlineMissedFunc_)()):PosixThread(name_,priority_,stackSize_),objectList(),started(false),periodMs(period_),deadlineMissedFunc(
deadlineMissedFunc_) {
}
PeriodicPosixTask::~PeriodicPosixTask() {
//Not Implemented
}
void* PeriodicPosixTask::taskEntryPoint(void* arg) {
//The argument is re-interpreted as PollingTask.
PeriodicPosixTask *originalTask(reinterpret_cast<PeriodicPosixTask*>(arg));
//The task's functionality is called.
originalTask->taskFunctionality();
return NULL;
}
ReturnValue_t PeriodicPosixTask::addComponent(object_id_t object) {
ExecutableObjectIF* newObject = objectManager->get<ExecutableObjectIF>(
object);
if (newObject == NULL) {
return HasReturnvaluesIF::RETURN_FAILED;
}
objectList.push_back(newObject);
return HasReturnvaluesIF::RETURN_OK;
}
ReturnValue_t PeriodicPosixTask::sleepFor(uint32_t ms) {
return PosixThread::sleep((uint64_t)ms*1000000);
}
ReturnValue_t PeriodicPosixTask::startTask(void){
started = true;
createTask(&taskEntryPoint,this);
return HasReturnvaluesIF::RETURN_OK;
}
void PeriodicPosixTask::taskFunctionality(void){
if(!started){
suspend();
}
uint64_t lastWakeTime = getCurrentMonotonicTimeMs();
//The task's "infinite" inner loop is entered.
while (1) {
for (ObjectList::iterator it = objectList.begin();
it != objectList.end(); ++it) {
(*it)->performOperation();
}
if(!PosixThread::delayUntil(&lastWakeTime,periodMs)){
char name[20] = {0};
int status = pthread_getname_np(pthread_self(),name,sizeof(name));
if(status==0){
error << "ObjectTask: " << name << " Deadline missed." << std::endl;
}else{
error << "ObjectTask: X Deadline missed. " << status << std::endl;
}
if (this->deadlineMissedFunc != NULL) {
this->deadlineMissedFunc();
}
}
}
}
uint32_t PeriodicPosixTask::getPeriodMs() const {
return periodMs;
}

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#ifndef FRAMEWORK_OSAL_LINUX_PERIODICPOSIXTASK_H_
#define FRAMEWORK_OSAL_LINUX_PERIODICPOSIXTASK_H_
#include <framework/tasks/PeriodicTaskIF.h>
#include <framework/objectmanager/ObjectManagerIF.h>
#include <framework/osal/linux/PosixThread.h>
#include <framework/tasks/ExecutableObjectIF.h>
#include <vector>
class PeriodicPosixTask: public PosixThread, public PeriodicTaskIF {
public:
PeriodicPosixTask(const char* name_, int priority_, size_t stackSize_, uint32_t period_, void(*deadlineMissedFunc_)());
virtual ~PeriodicPosixTask();
/**
* @brief The method to start the task.
* @details The method starts the task with the respective system call.
* Entry point is the taskEntryPoint method described below.
* The address of the task object is passed as an argument
* to the system call.
*/
ReturnValue_t startTask(void);
/**
* Adds an object to the list of objects to be executed.
* The objects are executed in the order added.
* @param object Id of the object to add.
* @return RETURN_OK on success, RETURN_FAILED if the object could not be added.
*/
ReturnValue_t addComponent(object_id_t object);
uint32_t getPeriodMs() const;
ReturnValue_t sleepFor(uint32_t ms);
private:
typedef std::vector<ExecutableObjectIF*> ObjectList; //!< Typedef for the List of objects.
/**
* @brief This attribute holds a list of objects to be executed.
*/
ObjectList objectList;
/**
* @brief Flag to indicate that the task was started and is allowed to run
*/
bool started;
/**
* @brief Period of the task in milliseconds
*/
uint32_t periodMs;
/**
* @brief The function containing the actual functionality of the task.
* @details The method sets and starts
* the task's period, then enters a loop that is repeated indefinitely. Within the loop, all performOperation methods of the added
* objects are called. Afterwards the task will be blocked until the next period.
* On missing the deadline, the deadlineMissedFunction is executed.
*/
virtual void taskFunctionality(void);
/**
* @brief This is the entry point in a new thread.
*
* @details This method, that is the entry point in the new thread and calls taskFunctionality of the child class.
* Needs a valid pointer to the derived class.
*/
static void* taskEntryPoint(void* arg);
/**
* @brief The pointer to the deadline-missed function.
* @details This pointer stores the function that is executed if the task's deadline is missed.
* So, each may react individually on a timing failure. The pointer may be NULL,
* then nothing happens on missing the deadline. The deadline is equal to the next execution
* of the periodic task.
*/
void (*deadlineMissedFunc)();
};
#endif /* FRAMEWORK_OSAL_LINUX_PERIODICPOSIXTASK_H_ */

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#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <cstring>
#include <errno.h>
#include <framework/osal/linux/PosixThread.h>
PosixThread::~PosixThread() {
//No deletion and no free of Stack Pointer
}
ReturnValue_t PosixThread::sleep(uint64_t ns) {
//TODO sleep might be better with timer instead of sleep()
timespec time;
time.tv_sec = ns/1000000000;
time.tv_nsec = ns - time.tv_sec*1e9;
//Remaining Time is not set here
int status = nanosleep(&time,NULL);
if(status != 0){
switch(errno){
case EINTR:
//The nanosleep() function was interrupted by a signal.
return HasReturnvaluesIF::RETURN_FAILED;
case EINVAL:
//The rqtp argument specified a nanosecond value less than zero or greater than or equal to 1000 million.
return HasReturnvaluesIF::RETURN_FAILED;
default:
return HasReturnvaluesIF::RETURN_FAILED;
}
}
return HasReturnvaluesIF::RETURN_OK;
}
void PosixThread::suspend() {
//Wait for SIGUSR1
int caughtSig = 0;
sigset_t waitSignal;
sigemptyset(&waitSignal);
sigaddset(&waitSignal, SIGUSR1);
sigwait(&waitSignal, &caughtSig);
if (caughtSig != SIGUSR1) {
error << "FixedTimeslotTask: Unknown Signal received: " << caughtSig
<< std::endl;
}
}
void PosixThread::resume(){
/* Signal the thread to start. Makes sense to call kill to start or? ;)
*
* According to Posix raise(signal) will call pthread_kill(pthread_self(), sig),
* but as the call must be done from the thread itsself this is not possible here
*/
pthread_kill(thread,SIGUSR1);
}
bool PosixThread::delayUntil(uint64_t* const prevoiusWakeTime_ms,
const uint64_t delayTime_ms) {
uint64_t nextTimeToWake_ms;
bool shouldDelay = false;
//Get current Time
const uint64_t currentTime_ms = getCurrentMonotonicTimeMs();
/* Generate the tick time at which the task wants to wake. */
nextTimeToWake_ms = (*prevoiusWakeTime_ms) + delayTime_ms;
if (currentTime_ms < *prevoiusWakeTime_ms) {
/* The tick count has overflowed since this function was
lasted called. In this case the only time we should ever
actually delay is if the wake time has also overflowed,
and the wake time is greater than the tick time. When this
is the case it is as if neither time had overflowed. */
if ((nextTimeToWake_ms < *prevoiusWakeTime_ms)
&& (nextTimeToWake_ms > currentTime_ms)) {
shouldDelay = true;
}
} else {
/* The tick time has not overflowed. In this case we will
delay if either the wake time has overflowed, and/or the
tick time is less than the wake time. */
if ((nextTimeToWake_ms < *prevoiusWakeTime_ms)
|| (nextTimeToWake_ms > currentTime_ms)) {
shouldDelay = true;
}
}
/* Update the wake time ready for the next call. */
(*prevoiusWakeTime_ms) = nextTimeToWake_ms;
if (shouldDelay) {
uint64_t sleepTime = nextTimeToWake_ms - currentTime_ms;
PosixThread::sleep(sleepTime * 1000000ull);
return true;
}
//We are shifting the time in case the deadline was missed like rtems
(*prevoiusWakeTime_ms) = currentTime_ms;
return false;
}
uint64_t PosixThread::getCurrentMonotonicTimeMs(){
timespec timeNow;
clock_gettime(CLOCK_MONOTONIC_RAW, &timeNow);
uint64_t currentTime_ms = (uint64_t) timeNow.tv_sec * 1000
+ timeNow.tv_nsec / 1000000;
return currentTime_ms;
}
PosixThread::PosixThread(const char* name_, int priority_, size_t stackSize_):thread(0),priority(priority_),stackSize(stackSize_) {
strcpy(name,name_);
}
void PosixThread::createTask(void* (*fnc_)(void*), void* arg_) {
debug << "PosixThread::createTask" << std::endl;
/*
* The attr argument points to a pthread_attr_t structure whose contents
are used at thread creation time to determine attributes for the new
thread; this structure is initialized using pthread_attr_init(3) and
related functions. If attr is NULL, then the thread is created with
default attributes.
*/
pthread_attr_t attributes;
int status = pthread_attr_init(&attributes);
if(status != 0){
error << "Posix Thread attribute init failed with: " << strerror(status) << std::endl;
}
void* sp;
status = posix_memalign(&sp, sysconf(_SC_PAGESIZE), stackSize);
if(status != 0){
error << "Posix Thread stack init failed with: " << strerror(status) << std::endl;
}
status = pthread_attr_setstack(&attributes, sp, stackSize);
if(status != 0){
error << "Posix Thread attribute setStack failed with: " << strerror(status) << std::endl;
}
status = pthread_attr_setinheritsched(&attributes, PTHREAD_EXPLICIT_SCHED);
if(status != 0){
error << "Posix Thread attribute setinheritsched failed with: " << strerror(status) << std::endl;
}
//TODO FIFO -> This needs root privileges for the process
status = pthread_attr_setschedpolicy(&attributes,SCHED_FIFO);
if(status != 0){
error << "Posix Thread attribute schedule policy failed with: " << strerror(status) << std::endl;
}
sched_param scheduleParams;
scheduleParams.__sched_priority = priority;
status = pthread_attr_setschedparam(&attributes, &scheduleParams);
if(status != 0){
error << "Posix Thread attribute schedule params failed with: " << strerror(status) << std::endl;
}
//Set Signal Mask for suspend until startTask is called
sigset_t waitSignal;
sigemptyset(&waitSignal);
sigaddset(&waitSignal, SIGUSR1);
status = pthread_sigmask(SIG_BLOCK, &waitSignal, NULL);
if(status != 0){
error << "Posix Thread sigmask failed failed with: " << strerror(status) << " errno: " << strerror(errno) << std::endl;
}
status = pthread_create(&thread,&attributes,fnc_,arg_);
if(status != 0){
error << "Posix Thread create failed with: " << strerror(status) << std::endl;
}
status = pthread_setname_np(thread,name);
if(status != 0){
error << "Posix Thread setname failed with: " << strerror(status) << std::endl;
}
status = pthread_attr_destroy(&attributes);
if(status!=0){
error << "Posix Thread attribute destroy failed with: " << strerror(status) << std::endl;
}
}

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#ifndef FRAMEWORK_OSAL_LINUX_POSIXTHREAD_H_
#define FRAMEWORK_OSAL_LINUX_POSIXTHREAD_H_
#include <pthread.h>
#include <sched.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <framework/returnvalues/HasReturnvaluesIF.h>
class PosixThread {
public:
PosixThread(const char* name_, int priority_, size_t stackSize_);
virtual ~PosixThread();
/**
* Set the Thread to sleep state
* @param ns Nanosecond sleep time
* @return Returns Failed if sleep fails
*/
static ReturnValue_t sleep(uint64_t ns);
/**
* @brief Function to suspend the task until SIGUSR1 was received
*
* @details Will be called in the beginning to suspend execution until startTask() is called explicitly.
*/
void suspend();
/**
* @brief Function to allow a other thread to start the thread again from suspend state
*
* @details Restarts the Thread after suspend call
*/
void resume();
/**
* Delay function similar to FreeRtos delayUntil function
*
* @param prevoiusWakeTime_ms Needs the previous wake time and returns the next wakeup time
* @param delayTime_ms Time period to delay
*
* @return False If deadline was missed; True if task was delayed
*/
static bool delayUntil(uint64_t* const prevoiusWakeTime_ms, const uint64_t delayTime_ms);
/**
* Returns the current time in milliseconds from CLOCK_MONOTONIC
*
* @return current time in milliseconds from CLOCK_MONOTONIC
*/
static uint64_t getCurrentMonotonicTimeMs();
protected:
pthread_t thread;
/**
* @brief Function that has to be called by derived class because the derived class pointer has to be valid as argument
* @details This function creates a pthread with the given parameters. As the function requires a pointer to the derived object
* it has to be called after the this pointer of the derived object is valid. Sets the taskEntryPoint as
* function to be called by new a thread.
* @param name_ Name of the task
* @param priority_ Priority of the task according to POSIX
* @param stackSize_ Size of the stack attached to that task
* @param arg_ argument of the taskEntryPoint function, needs to be this pointer of derived class
*/
void createTask(void* (*fnc_)(void*),void* arg_);
private:
char name[10];
int priority;
size_t stackSize;
};
#endif /* FRAMEWORK_OSAL_LINUX_POSIXTHREAD_H_ */

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#include <framework/ipc/QueueFactory.h>
#include <mqueue.h>
#include <errno.h>
#include <framework/osal/linux/MessageQueue.h>
#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <cstring>
QueueFactory* QueueFactory::factoryInstance = NULL;
ReturnValue_t MessageQueueSenderIF::sendMessage(MessageQueueId_t sendTo,
MessageQueueMessage* message, MessageQueueId_t sentFrom) {
message->setSender(sentFrom);
int result = mq_send(sendTo,
reinterpret_cast<const char*>(message->getBuffer()), message->messageSize,0);
//TODO: Check if we're in ISR.
if (result != 0) {
//TODO Translate error
switch(errno){
case EAGAIN:
//The O_NONBLOCK flag was set when opening the queue, or the MQ_NONBLOCK flag was set in its attributes, and the specified queue is full.
return MessageQueueIF::FULL;
case EBADF:
//mq_des doesn't represent a valid message queue descriptor, or mq_des wasn't opened for writing.
error << "MessageQueueSenderIF::sendMessage: Configuration error " << strerror(errno) << " in mq_send mqSendTo: " << sendTo << " sent from " << sentFrom << std::endl;
/*NO BREAK*/
case EINTR:
//The call was interrupted by a signal.
case EINVAL:
/*
* This value indicates one of the following:
* * msg_ptr is NULL.
* * msg_len is negative.
* * msg_prio is greater than MQ_PRIO_MAX.
* * msg_prio is less than 0.
* * MQ_PRIO_RESTRICT is set in the mq_attr of mq_des, and msg_prio is greater than the priority of the calling process.
* */
case EMSGSIZE:
//The msg_len is greater than the msgsize associated with the specified queue.
default:
return HasReturnvaluesIF::RETURN_FAILED;
}
}
return HasReturnvaluesIF::RETURN_OK;
}
QueueFactory* QueueFactory::instance() {
if (factoryInstance == NULL) {
factoryInstance = new QueueFactory;
}
return factoryInstance;
}
QueueFactory::QueueFactory() {
}
QueueFactory::~QueueFactory() {
}
MessageQueueIF* QueueFactory::createMessageQueue(uint32_t message_depth,
uint32_t max_message_size) {
return new MessageQueue(message_depth, max_message_size);
}
void QueueFactory::deleteMessageQueue(MessageQueueIF* queue) {
delete queue;
}

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#include <framework/osal/linux/FixedTimeslotTask.h>
#include <framework/osal/linux/PeriodicPosixTask.h>
#include <framework/tasks/TaskFactory.h>
#include <framework/returnvalues/HasReturnvaluesIF.h>
//TODO: Different variant than the lazy loading in QueueFactory. What's better and why?
TaskFactory* TaskFactory::factoryInstance = new TaskFactory();
TaskFactory::~TaskFactory() {
}
TaskFactory* TaskFactory::instance() {
return TaskFactory::factoryInstance;
}
PeriodicTaskIF* TaskFactory::createPeriodicTask(TaskName name_,TaskPriority taskPriority_,TaskStackSize stackSize_,TaskPeriod periodInSeconds_,TaskDeadlineMissedFunction deadLineMissedFunction_) {
return static_cast<PeriodicTaskIF*>(new PeriodicPosixTask(name_, taskPriority_,stackSize_,periodInSeconds_ * 1000,deadLineMissedFunction_));
}
FixedTimeslotTaskIF* TaskFactory::createFixedTimeslotTask(TaskName name_,TaskPriority taskPriority_,TaskStackSize stackSize_,TaskPeriod periodInSeconds_,TaskDeadlineMissedFunction deadLineMissedFunction_) {
return static_cast<FixedTimeslotTaskIF*>(new FixedTimeslotTask(name_, taskPriority_,stackSize_,periodInSeconds_*1000));
}
ReturnValue_t TaskFactory::deleteTask(PeriodicTaskIF* task) {
//TODO not implemented
return HasReturnvaluesIF::RETURN_FAILED;
}
ReturnValue_t TaskFactory::delayTask(uint32_t delayMs){
return PosixThread::sleep(delayMs*1000000ull);
}
TaskFactory::TaskFactory() {
}

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#include <framework/serviceinterface/ServiceInterfaceStream.h>
#include <errno.h>
#include <framework/osal/linux/Timer.h>
Timer::Timer() {
sigevent sigEvent;
sigEvent.sigev_notify = SIGEV_NONE;
sigEvent.sigev_signo = 0;
sigEvent.sigev_value.sival_ptr = &timerId;
int status = timer_create(CLOCK_MONOTONIC, &sigEvent, &timerId);
if(status!=0){
error << "Timer creation failed with: " << status << " errno: " << errno << std::endl;
}
}
Timer::~Timer() {
timer_delete(timerId);
}
int Timer::setTimer(uint32_t intervalMs) {
itimerspec timer;
timer.it_value.tv_sec = intervalMs / 1000;
timer.it_value.tv_nsec = (intervalMs * 1000000) % (1000000000);
timer.it_interval.tv_sec = 0;
timer.it_interval.tv_nsec = 0;
return timer_settime(timerId, 0, &timer, NULL);
}
int Timer::getTimer(uint32_t* remainingTimeMs){
itimerspec timer;
timer.it_value.tv_sec = 0;
timer.it_value.tv_nsec = 0;
timer.it_interval.tv_sec = 0;
timer.it_interval.tv_nsec = 0;
int status = timer_gettime(timerId, &timer);
*remainingTimeMs = timer.it_value.tv_sec * 1000 + timer.it_value.tv_nsec / 1000000;
return status;
}

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osal/linux/Timer.h Normal file
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#ifndef FRAMEWORK_OSAL_LINUX_TIMER_H_
#define FRAMEWORK_OSAL_LINUX_TIMER_H_
#include <signal.h>
#include <time.h>
#include <stdint.h>
/**
* This class is a helper for the creation of a Clock Monotonic timer which does not trigger a signal
*/
class Timer {
public:
/**
* Creates the Timer sets the timerId Member
*/
Timer();
/**
* Deletes the timer
*
* Careful! According to POSIX documentation:
* The treatment of any pending signal generated by the deleted timer is unspecified.
*/
virtual ~Timer();
/**
* Set the timer given in timerId to the given interval
*
* @param intervalMs Interval in ms to be set
* @return 0 on Success 1 else
*/
int setTimer(uint32_t intervalMs);
/**
* Get the remaining time of the timer
*
* @param remainingTimeMs Pointer to integer value which is used to return the remaining time
* @return 0 on Success 1 else (see timer_getime documentation of posix function)
*/
int getTimer(uint32_t* remainingTimeMs);
private:
timer_t timerId;
};
#endif /* FRAMEWORK_OSAL_LINUX_TIMER_H_ */