495   process_files = processCB->files;  in files_close_internal()
769   struct files_struct *files = LOS_MemAlloc(m_aucSysMem0, sizeof(struct files_struct));  in alloc_files()  local
770   if (!files)  in alloc_files()
775   files->count = 1;  in alloc_files()
776   files->file_lock = 0;  in alloc_files()
777   files->next_fd = 3;  in alloc_files()
779   spin_lock_init(&files->workdir_lock);  in alloc_files()
780   memset_s(files->workdir, PATH_MAX, 0, PATH_MAX);  in alloc_files()
781   files->workdir[0] = '/';  in alloc_files()
783   files->fdt = alloc_fd_table(NR_OPEN_DEFAULT);  in alloc_files()
784   if (!files->fdt)  in alloc_files()
787       (VOID)LOS_MemFree(m_aucSysMem0, files);  in alloc_files()
791   return files;  in alloc_files()
798   struct files_struct *files = NULL;  in dup_fd()  local
803   files = LOS_MemAlloc(m_aucSysMem0, sizeof(struct files_struct));  in dup_fd()
804   if(!files)  in dup_fd()
809   files->count = 1;  in dup_fd()
810   files->file_lock = 0;  in dup_fd()
811   files->next_fd = old_files->next_fd;  in dup_fd()
813   spin_lock_init(&files->workdir_lock);  in dup_fd()
814   memset_s(files->workdir, PATH_MAX, 0, PATH_MAX);  in dup_fd()
815   strncpy_s(files->workdir, PATH_MAX - 1, old_files->workdir, PATH_MAX - 1);  in dup_fd()
822       (VOID)LOS_MemFree(m_aucSysMem0, files);  in dup_fd()
826   files->fdt = new_fdt;  in dup_fd()
828   return files;  in dup_fd()
839 void delete_files(struct files_struct *files)  in delete_files()  argument
841   if (files == NULL)  in delete_files()
846   if (files->fdt == NULL)  in delete_files()
851   for (int i = 0; i < files->fdt->max_fds; i++)  in delete_files()
853       if (FD_ISSET(i, files->fdt->proc_fds))  in delete_files()
861   (VOID)sem_destroy(&files->fdt->ft_sem);  in delete_files()
862   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->ft_fds);  in delete_files()
863   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->proc_fds);  in delete_files()
864   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt);  in delete_files()
866   (VOID)LOS_MemFree(m_aucSysMem0, files);  in delete_files()
874   struct files_struct *files = NULL;  in create_files_snapshot()  local
879   files = LOS_MemAlloc(m_aucSysMem0, sizeof(struct files_struct));  in create_files_snapshot()
880   if (!files)  in create_files_snapshot()
885   files->count = 1;  in create_files_snapshot()
886   files->file_lock = 0;  in create_files_snapshot()
887   files->next_fd = old_files->next_fd;  in create_files_snapshot()
889   spin_lock_init(&files->workdir_lock);  in create_files_snapshot()
890   memset_s(files->workdir, PATH_MAX, 0, PATH_MAX);  in create_files_snapshot()
891   strncpy_s(files->workdir, PATH_MAX - 1, old_files->workdir, PATH_MAX - 1);  in create_files_snapshot()
898       (VOID)LOS_MemFree(m_aucSysMem0, files);  in create_files_snapshot()
902   files->fdt = new_fdt;  in create_files_snapshot()
904   return files;  in create_files_snapshot()
908 void delete_files_snapshot(struct files_struct *files)  in delete_files_snapshot()  argument
910   if (files == NULL)  in delete_files_snapshot()
914   if (files->fdt == NULL)  in delete_files_snapshot()
919   (VOID)sem_destroy(&files->fdt->ft_sem);  in delete_files_snapshot()
920   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->ft_fds);  in delete_files_snapshot()
921   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt->proc_fds);  in delete_files_snapshot()
922   (VOID)LOS_MemFree(m_aucSysMem0, files->fdt);  in delete_files_snapshot()
924   (VOID)LOS_MemFree(m_aucSysMem0, files);  in delete_files_snapshot()