662 void alloc_std_fd(struct fd_table_s *fdt)  in alloc_std_fd()  argument
664   fdt->ft_fds[STDIN_FILENO].sysFd = STDIN_FILENO;  in alloc_std_fd()
665   fdt->ft_fds[STDOUT_FILENO].sysFd = STDOUT_FILENO;  in alloc_std_fd()
666   fdt->ft_fds[STDERR_FILENO].sysFd = STDERR_FILENO;  in alloc_std_fd()
667   FD_SET(STDIN_FILENO, fdt->proc_fds);  in alloc_std_fd()
668   FD_SET(STDOUT_FILENO, fdt->proc_fds);  in alloc_std_fd()
669   FD_SET(STDERR_FILENO, fdt->proc_fds);  in alloc_std_fd()
724   struct fd_table_s *fdt;  in alloc_fd_table()  local
727   fdt = LOS_MemAlloc(m_aucSysMem0, sizeof(struct fd_table_s));  in alloc_fd_table()
728   if (!fdt)  in alloc_fd_table()
732   fdt->max_fds = numbers;  in alloc_fd_table()
735       fdt->ft_fds = NULL;  in alloc_fd_table()
736       fdt->proc_fds = NULL;  in alloc_fd_table()
737       fdt->cloexec_fds = NULL;  in alloc_fd_table()
738       return fdt;  in alloc_fd_table()
745   fdt->ft_fds = data;  in alloc_fd_table()
749         fdt->ft_fds[i].sysFd = -1;  in alloc_fd_table()
758   fdt->proc_fds = (fd_set *)data;  in alloc_fd_table()
759   fdt->cloexec_fds = (fd_set *)((uintptr_t)data + sizeof(fd_set));  in alloc_fd_table()
761   alloc_std_fd(fdt);  in alloc_fd_table()
763   (void)sem_init(&fdt->ft_sem, 0, 1);  in alloc_fd_table()
765   return fdt;  in alloc_fd_table()
768   (VOID)LOS_MemFree(m_aucSysMem0, fdt->ft_fds);  in alloc_fd_table()
770   (VOID)LOS_MemFree(m_aucSysMem0, fdt);  in alloc_fd_table()
791   files->fdt = alloc_fd_table(NR_OPEN_DEFAULT);  in alloc_files()
792   if (!files->fdt)  in alloc_files()
814   if((old_files == NULL) || (old_files->fdt == NULL) || (old_files->fdt->max_fds == 0))  in dup_fd()
832   old_fdt = old_files->fdt;  in dup_fd()
841   files->fdt = new_fdt;  in dup_fd()
875   if (files->fdt == NULL)  in delete_files()
880   for (int i = 0; i < files->fdt->max_fds; i++)  in delete_files()
882       if (FD_ISSET(i, files->fdt->proc_fds))  in delete_files()
890   (VOID)sem_destroy(&files->fdt->ft_sem);  in delete_files()
891   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->ft_fds);  in delete_files()
892   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->proc_fds);  in delete_files()
893   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt);  in delete_files()
904   if ((old_files == NULL) || (old_files->fdt == NULL) || (old_files->fdt->max_fds == 0))  in create_files_snapshot()
922   old_fdt = old_files->fdt;  in create_files_snapshot()
931   files->fdt = new_fdt;  in create_files_snapshot()
950   if (files->fdt == NULL)  in delete_files_snapshot()
955   (VOID)sem_destroy(&files->fdt->ft_sem);  in delete_files_snapshot()
956   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->ft_fds);  in delete_files_snapshot()
957   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->proc_fds);  in delete_files_snapshot()
958   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt);  in delete_files_snapshot()