82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
#include "icsneo/communication/driver.h"
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//#define ICSNEO_DRIVER_DEBUG_PRINTS
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#ifdef ICSNEO_DRIVER_DEBUG_PRINTS
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#include <iostream>
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#include <iomanip>
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#endif
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using namespace icsneo;
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bool Driver::read(std::vector<uint8_t>& bytes, size_t limit) {
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// A limit of zero indicates no limit
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if(limit == 0)
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limit = (size_t)-1;
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if(limit > (readQueue.size_approx() + 4))
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limit = (readQueue.size_approx() + 4);
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if(bytes.capacity() < limit)
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bytes.resize(limit);
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size_t actuallyRead = readQueue.try_dequeue_bulk(bytes.data(), limit);
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if(bytes.size() > actuallyRead)
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bytes.resize(actuallyRead);
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return true;
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}
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bool Driver::readWait(std::vector<uint8_t>& bytes, std::chrono::milliseconds timeout, size_t limit) {
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// A limit of zero indicates no limit
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if(limit == 0)
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limit = (size_t)-1;
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if(limit > (readQueue.size_approx() + 4))
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limit = (readQueue.size_approx() + 4);
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bytes.resize(limit);
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size_t actuallyRead = readQueue.wait_dequeue_bulk_timed(bytes.data(), limit, timeout);
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bytes.resize(actuallyRead);
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#ifdef ICSNEO_DRIVER_DEBUG_PRINTS
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if(actuallyRead > 0) {
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std::cout << "Read data: (" << actuallyRead << ')' << std::hex << std::endl;
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for(int i = 0; i < actuallyRead; i += 16) {
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for(int j = 0; j < std::min<int>(actuallyRead - i, 16); j++)
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std::cout << std::setw(2) << std::setfill('0') << uint32_t(bytes[i+j]) << ' ';
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std::cout << std::endl;
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}
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std::cout << std::dec << std::endl;
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}
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#endif
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return actuallyRead > 0;
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}
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bool Driver::write(const std::vector<uint8_t>& bytes) {
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if(!isOpen()) {
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report(APIEvent::Type::DeviceCurrentlyClosed, APIEvent::Severity::Error);
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return false;
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}
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if(writeBlocks) {
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if(writeQueueFull()) {
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while(writeQueueAlmostFull()) // Wait until we have some decent amount of space
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std::this_thread::sleep_for(std::chrono::milliseconds(10));
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}
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} else {
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if(writeQueueFull()) {
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report(APIEvent::Type::TransmitBufferFull, APIEvent::Severity::Error);
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return false;
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}
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}
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const bool ret = writeInternal(bytes);
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if(!ret)
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report(APIEvent::Type::Unknown, APIEvent::Severity::Error);
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return ret;
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} |