TCmalloc Thread cache size test

#include <iostream>
#include <cstdlib>
#ifdef HAVE_GPERFTOOLS_HEAP_PROFILER_H
#include <gperftools/heap-profiler.h>
#else
#include <google/heap-profiler.h>
#endif

#ifdef HAVE_GPERFTOOLS_MALLOC_EXTENSION_H
#include <gperftools/malloc_extension.h>
#else
#include <google/malloc_extension.h>
#endif

using namespace std;

int main ()
{
  size_t tc_cache_sz;
  size_t env_cache_sz;
  char *env_cache_sz_str;
  int st;

  env_cache_sz_str = getenv("TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES");
  if (env_cache_sz_str) {
    env_cache_sz = strtoul(env_cache_sz_str, NULL, 0);
    if (env_cache_sz == 33554432) {
        cout << "TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES Value same as default:"
                " 33554432 export a different value for test" << endl;
        exit(EXIT_FAILURE);
    }
    tc_cache_sz = 0;
    MallocExtension::instance()->
        GetNumericProperty("tcmalloc.max_total_thread_cache_bytes",
                        &tc_cache_sz);
    if (tc_cache_sz == env_cache_sz) {
      cout << "Tcmalloc OK! Internal and Env cache size are same:" <<
              tc_cache_sz << endl;
      st = EXIT_SUCCESS;
    } else {
      cout << "Tcmalloc BUG! TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES: "
              << env_cache_sz << " Internal Size: " << tc_cache_sz
              << " different" << endl;
      st = EXIT_FAILURE;
    }
  } else {
    cout << "TCMALLOC_MAX_TOTAL_THREAD_CACHE_BYTES Env Not Set" << endl;
    st = EXIT_FAILURE;
  }
  exit(st);
}
/* EOF */