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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/simple/CMakeLists.txt
+1 -1
View File
@@ -1,7 +1,7 @@
cmake_minimum_required(VERSION 3.2)
project(libicsneocpp-simple-example VERSION 0.2.0)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED 11)
include(GNUInstallDirs)
examples/cpp/simple/src/SimpleExample.cpp
+103 -67
View File
@@ -8,7 +8,7 @@
int main() {
// Print version
std::cout << "Running libicsneo " << icsneo::GetVersion() << std::endl;
std::cout<< "Supported devices:" << std::endl;
for(auto& dev : icsneo::GetSupportedDevices())
std::cout << '\t' << dev.getGenericProductName() << std::endl;
@@ -85,7 +85,7 @@ int main() {
std::cout << "FAIL" << std::endl;
else
std::cout << "OK, " << (baud/1000) << "kbit/s" << std::endl;
std::cout << "\tGetting HSCANFD Baudrate... ";
baud = device->settings->getFDBaudrateFor(icsneo::Network::NetID::HSCAN);
if(baud < 0)
@@ -126,82 +126,118 @@ int main() {
device->setPollingMessageLimit(100000); // Feel free to set a limit if you like, the default is a conservative 20k
// Keep in mind that 20k messages comes quickly at high bus loads!
// We can transmit messages
std::cout << "\tTransmitting an extended CAN FD frame... ";
auto txMessage5 = std::make_shared<icsneo::CANMessage>();
txMessage5->network = icsneo::Network::NetID::HSCAN;
txMessage5->arbid = 0x1C5001C5;
txMessage5->data.insert(txMessage5->data.end(), {0xaa, 0xbb, 0xcc});
// The DLC will come from the length of the data vector
txMessage5->isExtended = true;
txMessage5->isCANFD = true;
ret = device->transmit(txMessage5); // This will return false if the device does not support CAN FD, or does not have HSCAN
std::cout << (ret ? "OK" : "FAIL") << std::endl;
// We can also register a handler
std::cout << "\tStreaming messages in for 3 seconds... " << std::endl;
// MessageCallbacks are powerful, and can filter on things like ArbID for you. See the documentation
auto handler = device->addMessageCallback(icsneo::MessageCallback([](std::shared_ptr<icsneo::Message> message) {
switch(message->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\tCAN ";
if(canMessage->isCANFD) {
std::cout << "FD ";
if(!canMessage->baudrateSwitch)
std::cout << "(No BRS) ";
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;
}
// 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] << ' ';
}
} // 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 << 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 error counts
std::cout << "\t\t" << cec->network << " error counts changed, REC=" << std::to_string(cec->receiveErrorCount)
<< " TEC=" << std::to_string(cec->transmitErrorCount) << " (" << (cec->busOff ? "" : "Not ") << "Bus Off) ";
// Print the timestamp
std::cout << std::dec << '(' << isoMessage->timestamp << " ns since 1/1/2007)\n";
std::cout << std::dec << '(' << cec->timestamp << " ns since 1/1/2007)\n";
break;
}
default:
// Ignoring non-network messages
// Ignoring other types of messages
break;
}
}));
@@ -278,7 +314,7 @@ int main() {
ret = device->close();
std::cout << (ret ? "OK\n" : "FAIL\n") << std::endl;
}
std::cout << "Press any key to continue..." << std::endl;
std::cin.get();
return 0;