Function PAG_set_force_write

src/jrd/pag.cpp:1687–1732

void PAG_set_force_write(thread_db* tdbb, bool flag)
{
/**************************************
 *
 *	P A G _ s e t _ f o r c e _ w r i t e
 *
 **************************************
 *
 * Functional description
 *	Turn on/off force write.
 *
 **************************************/
	SET_TDBB(tdbb);
	Database* dbb = tdbb->getDatabase();

	err_post_if_database_is_readonly(dbb);

	WIN window(HEADER_PAGE_NUMBER);
	header_page* header = (header_page*) CCH_FETCH(tdbb, &window, LCK_write, pag_header);
	CCH_MARK_MUST_WRITE(tdbb, &window);

	if (flag)
	{
		header->hdr_flags |= hdr_force_write;
		dbb->dbb_flags |= DBB_force_write;
	}
	else
	{
		header->hdr_flags &= ~hdr_force_write;
		dbb->dbb_flags &= ~DBB_force_write;
	}

	CCH_RELEASE(tdbb, &window);

	PageSpace* pageSpace = dbb->dbb_page_manager.findPageSpace(DB_PAGE_SPACE);
	for (jrd_file* file = pageSpace->file; file; file = file->fil_next) {
		PIO_force_write(file, flag, dbb->dbb_flags & DBB_no_fs_cache);
	}

	for (Shadow* shadow = dbb->dbb_shadow; shadow; shadow = shadow->sdw_next)
	{
		for (jrd_file* file = shadow->sdw_file; file; file = file->fil_next) {
			PIO_force_write(file, flag, dbb->dbb_flags & DBB_no_fs_cache);
		}
	}
}


void PAG_set_no_reserve(thread_db* tdbb, bool flag)