示例#1
0
void
lumiera_backend_destroy (void)
{
  TRACE (backend_dbg);

  lumiera_mmapcache_delete ();
  lumiera_filehandlecache_delete ();
  lumiera_filedescriptorregistry_destroy ();
  lumiera_threadpool_destroy ();

  lumiera_safeclib_set_resourcecollector (NULL);

  mpool_init_hook = NULL;
  mpool_destroy_hook = NULL;
  mpool_malloc_hook = malloc;
  mpool_free_hook = free;

  lumiera_resourcecollector_destroy ();

  lumiera_mutex_destroy (&lumiera_filecreate_mutex, &NOBUG_FLAG (mutex_dbg), NOBUG_CONTEXT);
}
示例#2
0
int
lumiera_backend_init (void)
{

  TRACE (backend_dbg);
  lumiera_mutex_init (&lumiera_filecreate_mutex, "fileaccess", &NOBUG_FLAG (mutex_dbg), NOBUG_CONTEXT);

  lumiera_resourcecollector_init ();

  /* hook the resourcecollector into the mpool*/
  mpool_malloc_hook = lumiera_malloc;
  mpool_free_hook = lumiera_free;
  mpool_init_hook = lumiera_backend_resourcecollector_register_mpool;
  mpool_destroy_hook = lumiera_backend_resourcecollector_unregister_mpool;

  /* hook the resourcecollector into the safeclib allocation functions */
  lumiera_safeclib_set_resourcecollector (lumiera_resourcecollector_run);

  PLANNED("The resourcecollector aborts by default when there is no final strategy for recovery, TODO: initiate sane shutdown");

  lumiera_threadpool_init ();
  PLANNED ("hook threadpool into the resourcecollector (maybe in threadpool_init() instead here");

  lumiera_filedescriptorregistry_init ();

  lumiera_backend_pagesize = sysconf(_SC_PAGESIZE);

  /////////////////////////////////////////////////////////////////////TICKET #838 add config options to override following defaults"


  const char* filehandles = lumiera_tmpbuf_snprintf (SIZE_MAX,
                                                     "vault.file.max_handles = %d",
                                                     /* roughly 2/3 of all available filehandles are managed by the Lumiera Vault */
                                                     (sysconf (_SC_OPEN_MAX)-10)*2/3);

  lumiera_config_setdefault (filehandles);

  long long max_entries;
  lumiera_config_number_get ("vault.file.max_handles", &max_entries);
  lumiera_filehandlecache_new (max_entries);

#if SIZE_MAX <= 4294967295UL
  lumiera_config_setdefault ("vault.mmap.as_limit = 3221225469");
#else
  lumiera_config_setdefault ("vault.mmap.as_limit = 211106232532992");
#endif

  struct rlimit as_rlimit;
  getrlimit (RLIMIT_AS, &as_rlimit);

  long long as_limit = (long long)as_rlimit.rlim_cur;
  if (as_rlimit.rlim_cur == RLIM_INFINITY)
    {
      lumiera_config_number_get ("vault.mmap.as_limit", &as_limit);
    }
  else
    {
      INFO (vault, "address space limited to %luMiB", as_rlimit.rlim_cur/1024/1024);
    }

  lumiera_mmapcache_new (as_limit);

  return 0;
}