1berry/ruby
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Reuse sysconf result

Browse Source
This commit is contained in:
Nobuyoshi Nakada 2021-05-06 12:09:57 +09:00
parent 0dd9ac7721
commit f941dd5a9f
No known key found for this signature in database
GPG Key ID: 7CD2805BFA3770C6
1 changed files with 14 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
gc.c
View File

@ -3213,20 +3213,6 @@ Init_heap(void)
{
rb_objspace_t *objspace = &rb_objspace;
#if defined(HAVE_MMAP) && !HAVE_CONST_PAGE_SIZE && !defined(PAGE_MAX_SIZE)
/* Need to determine if we can use mmap at runtime. */
# ifdef PAGE_SIZE
/* If the PAGE_SIZE macro can be used. */
use_mmap_aligned_alloc = PAGE_SIZE <= HEAP_PAGE_SIZE;
# elif defined(HAVE_SYSCONF) && defined(_SC_PAGE_SIZE)
/* If we can use sysconf to determine the page size. */
use_mmap_aligned_alloc = sysconf(_SC_PAGE_SIZE) <= HEAP_PAGE_SIZE;
# else
/* Otherwise we can't determine the system page size, so don't use mmap. */
use_mmap_aligned_alloc = FALSE;
# endif
#endif
#if defined(HAVE_SYSCONF) && defined(_SC_PAGE_SIZE)
/* If Ruby's heap pages are not a multiple of the system page size, we
* cannot use mprotect for the read barrier, so we must disable automatic
@ -3238,6 +3224,20 @@ Init_heap(void)
}
#endif
#if defined(HAVE_MMAP) && !HAVE_CONST_PAGE_SIZE && !defined(PAGE_MAX_SIZE)
/* Need to determine if we can use mmap at runtime. */
# ifdef PAGE_SIZE
/* If the PAGE_SIZE macro can be used. */
use_mmap_aligned_alloc = PAGE_SIZE <= HEAP_PAGE_SIZE;
# elif defined(HAVE_SYSCONF) && defined(_SC_PAGE_SIZE)
/* If we can use sysconf to determine the page size. */
use_mmap_aligned_alloc = pagesize <= HEAP_PAGE_SIZE;
# else
/* Otherwise we can't determine the system page size, so don't use mmap. */
use_mmap_aligned_alloc = FALSE;
# endif
#endif
objspace->next_object_id = INT2FIX(OBJ_ID_INITIAL);
objspace->id_to_obj_tbl = st_init_table(&object_id_hash_type);
objspace->obj_to_id_tbl = st_init_numtable();