DecodeSCT.cxx File Reference

#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <utility>
#include <cstdint>
#include <filesystem>

Go to the source code of this file.

Functions
std::string	str (const char *word)
void	helpMessage ()
int	main (int argc, char **argv)

Function Documentation

helpMessage()

void helpMessage

(

)

Definition at line 48 of file DecodeSCT.cxx.

             {
  std::cout<< "'DecodeSCT' takes exactly one argument, the bytestream filename." <<std::endl;
}

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 53 of file DecodeSCT.cxx.

                                {
  if (argc < 2){
    helpMessage();
    return 1;
  } 
  fs::path input_file = getFilename(argv[1]);
  if (input_file.empty()) {
    std::cerr << argv[1] <<" does not exist."<<std::endl;
    return 2;
  }
  auto length = fs::file_size(input_file);
  printf("Length: %lu\n", length);
  auto fd = open(input_file.c_str(), O_RDONLY);
  if(fd<0) {
    perror("File open failed");
    return 3;
  }
  uint32_t *buffer = (uint32_t *) mmap(0, length, PROT_READ, MAP_PRIVATE, fd, 0);
  if(buffer == MAP_FAILED) {
    close(fd);
    perror("mmap failed");
    return 4;
  }
  uint32_t *endBuffer = &buffer[length/4];
  uint32_t *begin = buffer;
  uint32_t *end{};
  while(findNextEvent(begin, end, endBuffer, 0xee1234ee)) {
    //cppcheck-suppress invalidPrintfArgType_sint
    printf("Event from %li to %li\n", begin-buffer, end-buffer);
    int length = static_cast<int>(end - 1l - begin);
    decodeEvent(begin, length);
  }
  munmap(buffer, length);
  close(fd);
}

str()

std::string str ( const char *  word )

inline

Definition at line 43 of file DecodeSCT.cxx.

                      {
  return word ? word : "";
}