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Message: Create a type system so non-frame data can be represented

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This change breaks existing code, hence the version bump, but it's
going to be much less error prone going forward.
This commit is contained in:
Paul Hollinsky
2021-05-22 01:58:36 -04:00
parent 21e93d1f73
commit 21bc4eeff2
48 changed files with 853 additions and 527 deletions
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examples/cpp/interactive/CMakeLists.txt
+1 -1
View File
@@ -1,7 +1,7 @@
cmake_minimum_required(VERSION 3.2)
project(libicsneocpp-interactive-example VERSION 0.2.0)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED 11)
include(GNUInstallDirs)
examples/cpp/interactive/src/InteractiveExample.cpp
+106 -50
View File
@@ -182,6 +182,102 @@ std::shared_ptr<icsneo::Device> selectDevice(const std::vector<std::shared_ptr<i
return from.at(selectedDeviceNum - 1);
}
void printMessage(const std::shared_ptr<icsneo::Message>& message) {
switch(message->type) {
case icsneo::Message::Type::Frame: {
// A message of type Frame is guaranteed to be a Frame, so we can static cast safely
auto frame = std::static_pointer_cast<icsneo::Frame>(message);
switch(frame->network.getType()) {
case icsneo::Network::Type::CAN: {
// A message of type CAN is guaranteed to be a CANMessage, so we can static cast safely
auto canMessage = std::static_pointer_cast<icsneo::CANMessage>(message);
std::cout << "\t\t" << frame->network << ' ';
if(canMessage->isCANFD) {
std::cout << "FD ";
if(!canMessage->baudrateSwitch)
std::cout << "(No BRS) ";
}
// Print the Arbitration ID
std::cout << "0x" << std::hex << std::setw(canMessage->isExtended ? 8 : 3)
<< std::setfill('0') << canMessage->arbid;
// Print the DLC
std::cout << std::dec << " [" << canMessage->data.size() << "] ";
// Print the data
for(auto& databyte : canMessage->data)
std::cout << std::hex << std::setw(2) << (uint32_t)databyte << ' ';
// Print the timestamp
std::cout << std::dec << '(' << canMessage->timestamp << " ns since 1/1/2007)\n";
break;
}
case icsneo::Network::Type::Ethernet: {
auto ethMessage = std::static_pointer_cast<icsneo::EthernetMessage>(message);
std::cout << "\t\t" << ethMessage->network << " Frame - " << std::dec
<< ethMessage->data.size() << " bytes on wire\n";
std::cout << "\t\t Timestamped:\t"<< ethMessage->timestamp << " ns since 1/1/2007\n";
// The MACAddress may be printed directly or accessed with the `data` member
std::cout << "\t\t Source:\t" << ethMessage->getSourceMAC() << "\n";
std::cout << "\t\t Destination:\t" << ethMessage->getDestinationMAC();
// Print the data
for(size_t i = 0; i < ethMessage->data.size(); i++) {
if(i % 8 == 0)
std::cout << "\n\t\t " << std::hex << std::setw(4) << std::setfill('0') << i << '\t';
std::cout << std::hex << std::setw(2) << (uint32_t)ethMessage->data[i] << ' ';
}
std::cout << std::dec << std::endl;
break;
}
case icsneo::Network::Type::ISO9141: {
// Note that the default settings on some devices have ISO9141 disabled by default in favor of LIN
// and that this example loads the device defaults at the very end.
// A message of type ISO9414 is guaranteed to be an ISO9141Message, so we can static cast safely
auto isoMessage = std::static_pointer_cast<icsneo::ISO9141Message>(message);
std::cout << "\t\t" << isoMessage->network << ' ';
// Print the header bytes
std::cout << '(' << std::hex << std::setfill('0') << std::setw(2) << (uint32_t)isoMessage->header[0] << ' ';
std::cout << std::setfill('0') << std::setw(2) << (uint32_t)isoMessage->header[1] << ' ';
std::cout << std::setfill('0') << std::setw(2) << (uint32_t)isoMessage->header[2] << ") ";
// Print the data length
std::cout << std::dec << " [" << isoMessage->data.size() << "] ";
// Print the data
for(auto& databyte : isoMessage->data)
std::cout << std::hex << std::setfill('0') << std::setw(2) << (uint32_t)databyte << ' ';
// Print the timestamp
std::cout << std::dec << '(' << isoMessage->timestamp << " ns since 1/1/2007)\n";
break;
}
default:
// Ignoring non-network messages
break;
}
break;
} // end of icsneo::Message::Type::Frame
case icsneo::Message::Type::CANErrorCount: {
// A message of type CANErrorCount is guaranteed to be a CANErrorCount, so we can static cast safely
auto cec = std::static_pointer_cast<icsneo::CANErrorCountMessage>(message);
std::cout << "\t\t" << cec->network << " error counts changed, REC=" << cec->receiveErrorCount
<< " TEC=" << cec->transmitErrorCount << " (" << (cec->busOff ? "" : "Not ") << "Bus Off)" << std::endl;
break;
}
default:
// Ignoring other types of messages
break;
}
}
int main() {
std::cout << "Running libicsneo " << icsneo::GetVersion() << std::endl << std::endl;
@@ -237,7 +333,7 @@ int main() {
std::cout << "[1] Open" << std::endl << "[2] Close" << std::endl << "[3] Cancel" << std::endl << std::endl;
char selection = getCharInput(std::vector<char> {'1', '2', '3'});
std::cout << std::endl;
switch(selection) {
case '1':
if(selectedDevice->open()) {
@@ -247,7 +343,7 @@ int main() {
std::cout << icsneo::GetLastError() << std::endl;
std::cout << std::endl;
}
break;
case '2':
// Attempt to close the device
@@ -259,7 +355,7 @@ int main() {
std::cout << icsneo::GetLastError() << std::endl;;
std::cout << std::endl;
}
break;
default:
std::cout << "Canceling!" << std::endl << std::endl;
@@ -360,7 +456,7 @@ int main() {
default:
std::cout << "Canceling!" << std::endl << std::endl;
break;
}
}
}
break;
// Get messages
@@ -392,29 +488,9 @@ int main() {
}
// Print out the received messages
for(auto msg : msgs) {
switch(msg->network.getType()) {
case icsneo::Network::Type::CAN:
{
// A message of type CAN is guaranteed to be a CANMessage, so we can static cast safely
auto canMsg = std::static_pointer_cast<icsneo::CANMessage>(msg);
std::cout << "\t0x" << std::setfill('0') << std::setw(3) << std::hex << (int) canMsg->arbid << " [" << canMsg->data.size() << "] " << std::dec;
for(auto data : canMsg->data) {
std::cout << std::setfill('0') << std::setw(2) << std::hex << (int) data << " " << std::dec;
}
for(const auto& msg : msgs)
printMessage(msg);
std::cout << canMsg->timestamp << std::endl;
break;
}
default:
if(msg->network.getNetID() != icsneo::Network::NetID::Device) {
std::cout << "\tMessage on netid " << msg->network.GetNetIDString(msg->network.getNetID()) << " with length " << msg->data.size() << std::endl;
}
break;
}
}
std::cout << std::endl;
}
@@ -445,7 +521,7 @@ int main() {
std::cout << "Failed to transmit message to " << selectedDevice->describe() << "!" << std::endl << std::endl;
std::cout << icsneo::GetLastError() << std::endl;;
}
/** Example of CAN FD
std::cout << "Transmitting an extended CAN FD frame... " << std::endl;
auto txMessage = std::make_shared<icsneo::CANMessage>();
@@ -538,28 +614,8 @@ int main() {
switch(selection) {
case '1':
{
// Shameless copy-paste from get messages above, demonstrating a callback
int callbackID = selectedDevice->addMessageCallback(icsneo::MessageCallback([](std::shared_ptr<icsneo::Message> msg){
switch(msg->network.getType()) {
case icsneo::Network::Type::CAN:
{
// A message of type CAN is guaranteed to be a CANMessage, so we can static cast safely
auto canMsg = std::static_pointer_cast<icsneo::CANMessage>(msg);
std::cout << "\t0x" << std::setfill('0') << std::setw(3) << std::hex << (int) canMsg->arbid << " [" << canMsg->data.size() << "] " << std::dec;
for(auto data : canMsg->data) {
std::cout << std::setfill('0') << std::setw(2) << std::hex << (int) data << " " << std::dec;
}
std::cout << canMsg->timestamp << std::endl;
break;
}
default:
if(msg->network.getNetID() != icsneo::Network::NetID::Device) {
std::cout << "\tMessage on netid " << msg->network.GetNetIDString(msg->network.getNetID()) << " with length " << msg->data.size() << std::endl;
}
break;
}
printMessage(msg);
}));
if(callbackID != -1) {
@@ -578,7 +634,7 @@ int main() {
break;
} else {
std::vector<char> allowed;
std::cout << "Which id would you like to remove?" << std::endl;
for(int id : callbacks.find(selectedDevice)->second) {
allowed.push_back(static_cast<char>(id) + '0');
@@ -595,7 +651,7 @@ int main() {
} else {
std::cout << "Failed to remove message callback id " << removeID << " from " << selectedDevice->describe() << "!" << std::endl << std::endl;
std::cout << icsneo::GetLastError() << std::endl;;
}
}
}
}
break;