none/tests/freebsd/proc_pid_file.cpp

   1 #include <iostream>
   2 //#include <fstream>
   3 #include <string>
   4 #include <limits.h>
   5 #include <unistd.h>
   6 #include <fcntl.h>
   7 #include <cassert>
   8
   9 int main()
  10 {
  11    char resolvedPath[PATH_MAX];
  12    auto count = readlink("/proc/curproc/file", resolvedPath, PATH_MAX);
  13    resolvedPath[count] = '\0';
  14    //std::cout << "resolvedPath: " << resolvedPath << '\n';
  15    char resolvedPath2[PATH_MAX];
  16    auto count2 = readlinkat(AT_FDCWD, "/proc/curproc/file", resolvedPath2, PATH_MAX);
  17    resolvedPath2[count2] = '\0';
  18    //std::cout << "resolvedPath2: " << resolvedPath2 << '\n';
  19    std::string rp(resolvedPath);
  20    assert(rp == resolvedPath2);
  21
  22    auto n = rp.rfind("proc_pid_file");
  23
  24    std::string filename(rp.substr(n));
  25    //std::cout << "filename: " << filename << '\n';
  26    assert(filename == "proc_pid_file");
  27 }