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);
}
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;
}