util.hpp

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#pragma once
 
#include <fstream>
 
#include "ityr/common/util.hpp"
 
namespace ityr::ori {
 
namespace mode {
struct read_t {};
inline constexpr read_t read;
struct write_t {};
inline constexpr write_t write;
struct read_write_t {};
inline constexpr read_write_t read_write;
}
 
inline std::string str(mode::read_t) {
  return "read";
}
 
inline std::string str(mode::write_t) {
  return "write";
}
 
inline std::string str(mode::read_write_t) {
  return "read_write";
}
 
using block_size_t = uint32_t;
 
inline std::size_t sys_mmap_entry_limit() {
  std::ifstream ifs("/proc/sys/vm/max_map_count");
  if (!ifs) {
    common::die("Cannot open /proc/sys/vm/max_map_count");
  }
  std::size_t sys_limit;
  ifs >> sys_limit;
  return sys_limit;
}
 
}