jemalloc/src/arena.c

44     size_t pageind, size_t npages, bool maybe_adjac_pred,
47     size_t pageind, size_t npages, bool maybe_adjac_pred,
224 arena_avail_adjac_succ(arena_chunk_t *chunk, size_t pageind, size_t npages)
228 	if (pageind+npages == chunk_npages)
231 		assert(pageind+npages < chunk_npages);
232 		ret = (arena_mapbits_allocated_get(chunk, pageind+npages) == 0);
234 		    != arena_mapbits_dirty_get(chunk, pageind+npages));
240 arena_avail_adjac(arena_chunk_t *chunk, size_t pageind, size_t npages)
244 	    arena_avail_adjac_succ(chunk, pageind, npages));
249     size_t npages, bool maybe_adjac_pred, bool maybe_adjac_succ)
252 	assert(npages == (arena_mapbits_unallocated_size_get(chunk, pageind) >>
264 	if (maybe_adjac_succ && arena_avail_adjac_succ(chunk, pageind, npages))
270 		arena->ndirty += npages;
271 		chunk->ndirty += npages;
282     size_t npages, bool maybe_adjac_pred, bool maybe_adjac_succ)
285 	assert(npages == (arena_mapbits_unallocated_size_get(chunk, pageind) >>
297 	if (maybe_adjac_succ && arena_avail_adjac_succ(chunk, pageind, npages))
304 		arena->ndirty -= npages;
305 		chunk->ndirty -= npages;
362 arena_run_zero(arena_chunk_t *chunk, size_t run_ind, size_t npages)
366 	    LG_PAGE)), (npages << LG_PAGE));
368 	    (npages << LG_PAGE));
716 	size_t pageind, npages;
758 	for (pageind = map_bias; pageind < chunk_npages; pageind += npages) {
764 			npages = run_size >> LG_PAGE;
765 			assert(pageind + npages <= chunk_npages);
767 			    arena_mapbits_dirty_get(chunk, pageind+npages-1));
771 			    npages))) {
784 				npages = arena_mapbits_large_size_get(chunk,
796 				npages = bin_info->run_size >> LG_PAGE;
814 		npages = arena_mapbits_large_size_get(chunk, pageind) >>
816 		assert(pageind + npages <= chunk_npages);
818 		    LG_PAGE)), (npages << LG_PAGE));
830 		for (i = 0; i < npages; i++) {
834 		npurged += npages;
1621 	size_t npages, run_ind, past;
1633 	npages = bin_info->run_size >> LG_PAGE;
1647 	    arena_mapbits_dirty_get(chunk, run_ind+npages-1));
1649 	    npages) {
1651 		assert(npages > 0);
1653 		arena_mapbits_large_set(chunk, run_ind+npages-1, 0, 0);
1654 		arena_run_trim_tail(arena, chunk, run, (npages << LG_PAGE),
1656 		/* npages = past - run_ind; */
1817 	size_t npages = oldsize >> LG_PAGE;
1825 	if (pageind + npages < chunk_npages &&
1826 	    arena_mapbits_allocated_get(chunk, pageind+npages) == 0 &&
1828 	    pageind+npages)) >= size - oldsize) {
1838 		    ((pageind+npages) << LG_PAGE)), splitsize, true,
1842 		npages = size >> LG_PAGE;
1853 		    arena_mapbits_dirty_get(chunk, pageind+npages-1);
1855 		arena_mapbits_large_set(chunk, pageind+npages-1, 0, flag_dirty);