135 lines
4.5 KiB
C++
135 lines
4.5 KiB
C++
#include <algorithm>
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#include <cmath>
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#include <cstdint>
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#include <cstdlib>
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#include <ctime>
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#include <iostream>
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#include <iomanip>
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#include <random>
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#include <sys/types.h>
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#include <unistd.h>
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#define START_OF_HEADER_MARKER 0xee1234ee
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#define MIN_FRAGMENTS 0
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#define MAX_FRAGMENTS 100
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typedef struct Header {
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uint32_t startOfHeaderMarker;
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uint32_t headerSize;
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uint32_t fragmentSize;
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uint32_t runNumber;
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uint32_t detectorEventNumber;
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uint32_t numberOfStatusElements;
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uint32_t *statusElementsArray;
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friend std::ostream& operator <<(std::ostream& os, Header const& header)
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{
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return os << std::setw(8) << std::setfill('0') << header.startOfHeaderMarker << '\n'
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<< std::setw(8) << std::setfill('0') << header.headerSize << '\n'
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<< std::setw(8) << std::setfill('0') << header.fragmentSize << '\n'
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<< std::setw(8) << std::setfill('0') << header.runNumber << '\n'
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<< std::setw(8) << std::setfill('0') << header.detectorEventNumber << '\n'
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<< std::setw(8) << std::setfill('0') << header.numberOfStatusElements << '\n';
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}
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} Header;
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typedef struct Fragment {
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Header header;
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uint32_t *payloadElements;
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} Fragment;
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enum ERROR_CODES {
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INCORRECT_ERROR = (1 << 0),
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CORRUPTED_ERROR = (1 << 1),
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MISSING_DATA_ERROR = (1 << 2),
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TIMEOUT_ERROR = (1 << 3)
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};
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/*
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int rndError(float p){
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float rndFloat = static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
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return rndFloat < p;
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}*/
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int main(int argc, char* argv[]) {
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//will use it later to obtain random number from hardware
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std::random_device rd;
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std::mt19937 generator(42);
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std::discrete_distribution<uint8_t> discrete_distr({0.9, 0.1});
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std::normal_distribution<float> normal_distr(25., 10.);
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std::uniform_int_distribution<uint32_t> unif_int_distib;
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std::uniform_real_distribution<float> unif_float_distrib(0.5, 2);
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//commenting all old_style generation
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//srand (static_cast <unsigned> (42));
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bool out_condition = true;
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uint32_t event_number = 0;
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uint32_t run_number = 0;
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if (argc > 1) {
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run_number = atoi(argv[1]);
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}
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while (true) {
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Header header;
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header.startOfHeaderMarker = START_OF_HEADER_MARKER;
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header.runNumber = run_number;
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header.detectorEventNumber = event_number;
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event_number++;
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header.numberOfStatusElements = 0;
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//if swap to old style just change with function above and prob 0.1 for 1
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uint8_t incorrectError = discrete_distr(generator);
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uint8_t corruptedError = discrete_distr(generator);
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uint8_t missingDataError = discrete_distr(generator);
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uint8_t timeoutError = discrete_distr(generator);
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uint32_t firstStatusElement = 0x0;
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if (incorrectError) firstStatusElement |= INCORRECT_ERROR;
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if (corruptedError) firstStatusElement |= CORRUPTED_ERROR;
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if (missingDataError) firstStatusElement |= MISSING_DATA_ERROR;
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if (timeoutError) firstStatusElement |= TIMEOUT_ERROR;
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if (firstStatusElement != 0x0) {
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header.numberOfStatusElements = 1;
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header.statusElementsArray = new uint32_t[header.numberOfStatusElements];
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header.statusElementsArray[0] = firstStatusElement;
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}
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uint32_t payload_size = std::max(std::min(static_cast<int>(std::round(normal_distr(generator))), MAX_FRAGMENTS), MIN_FRAGMENTS);
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header.headerSize = 6 + header.numberOfStatusElements;
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header.fragmentSize = header.headerSize + payload_size;
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Fragment fragment;
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fragment.header = header;
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fragment.payloadElements = new uint32_t[payload_size];
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for (uint32_t i = 0; i < payload_size; i++) {
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fragment.payloadElements[i] = unif_int_distib(generator);
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}
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std::cout << std::hex << std::setw(8) << std::setfill('0');
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std::cout << fragment.header;
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for (uint8_t i = 0; i < fragment.header.numberOfStatusElements; i++) {
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std::cout << "status element " << std::setw(8) << std::setfill('0') << fragment.header.statusElementsArray[i] << std::endl;
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}
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for (uint32_t i = 0; i < payload_size; i++) {
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std::cout << "payload element " << std::setw(8) << std::setfill('0') << fragment.payloadElements[i] << std::endl;
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}
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std::cout << std::endl;
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if (header.numberOfStatusElements > 0){
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delete [] fragment.header.statusElementsArray;
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}
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delete [] fragment.payloadElements;
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sleep(unif_float_distrib(generator));
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}
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return 0;
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} |