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- version39-41:1.1;
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- comment @ * @;
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- 1.1
- date 92.05.14.19.55.40; author mwild; state Exp;
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-
- desc
- @rename a file
- @
-
-
- 1.1
- log
- @Initial revision
- @
- text
- @/*
- * This file is part of ixemul.library for the Amiga.
- * Copyright (C) 1991, 1992 Markus M. Wild
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
- *
- * $Log$
- */
-
- #define KERNEL
- #include "ixemul.h"
-
- #if __GNUC__ != 2
- #define alloca __builtin_alloca
- #endif
-
- struct rename_vec {
- char *source_name;
- BPTR target_dir_lock;
- BSTR target_name;
- };
-
-
- static int
- __rename_func (struct StandardPacket *sp, struct MsgPort *handler,
- BPTR parent_lock,
- BSTR name,
- struct rename_vec *rv, int *no_error)
- {
- sp->sp_Pkt.dp_Type = ACTION_RENAME_OBJECT;
- sp->sp_Pkt.dp_Arg1 = parent_lock;
- sp->sp_Pkt.dp_Arg2 = name;
- sp->sp_Pkt.dp_Arg3 = rv->target_dir_lock;
- sp->sp_Pkt.dp_Arg4 = rv->target_name;
-
- PutPacket (handler, sp);
- __wait_sync_packet (sp);
-
- *no_error = sp->sp_Pkt.dp_Res1 == -1;
-
- /* retry if necessary */
- return 1;
- }
-
- static int
- __get_target_data (struct StandardPacket *sp, struct MsgPort *handler,
- BPTR parent_lock,
- BSTR name,
- struct rename_vec *rv, int *no_error)
- {
- rv->target_dir_lock = parent_lock;
- rv->target_name = name;
-
- sp->sp_Pkt.dp_Res1 = __plock (rv->source_name, __rename_func, rv);
- sp->sp_Pkt.dp_Res2 = ((struct Process *)FindTask(0))->pr_Result2;
-
- *no_error = sp->sp_Pkt.dp_Res1 == -1;
-
- /* don't retry */
- return 0;
- }
-
- int
- rename(char *from, char *to)
- {
- int res;
- struct rename_vec rv;
-
- rv.source_name = from;
-
- res = __plock (to, __get_target_data, &rv);
-
- if (res == 0 && IoErr() == ERROR_OBJECT_EXISTS)
- {
- syscall (SYS_unlink ,to);
- res = __plock (to, __get_target_data, &rv);
- }
-
- if (!res) errno = __ioerr_to_errno (IoErr ());
- return res == -1 ? 0 : -1;
- }
- @
-