1 //
2 // aegis - project change supervisor
3 // Copyright (C) 2007, 2008, 2012 Peter Miller
4 //
5 // This program is free software; you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation; either version 3 of the License, or
8 // (at your option) any later version.
9 //
10 // This program is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 // GNU General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with this program. If not, see
17 // <http://www.gnu.org/licenses/>.
18 //
19
20 #include <common/ac/assert.h>
21
22 #include <common/trace.h>
23 #include <libaegis/commit.h>
24 #include <libaegis/gonzo.h>
25 #include <libaegis/os.h>
26 #include <libaegis/undo.h>
27 #include <libaegis/user.h>
28
29
30 void
user_ustate_write(user_ty::pointer up)31 user_ustate_write(user_ty::pointer up)
32 {
33 up->ustate_write();
34 }
35
36
37 void
ustate_write()38 user_ty::ustate_write()
39 {
40 trace(("user_ty::ustate_write(this = %p)\n{\n", this));
41 assert(ustate_data);
42 assert(ustate_path);
43 if (!ustate_modified)
44 {
45 trace(("}\n"));
46 return;
47 }
48
49 //
50 // write it out
51 //
52 static int count;
53 nstring filename_new =
54 nstring::format("%s,%d", ustate_path.c_str(), ++count);
55 nstring filename_old =
56 nstring::format("%s,%d", ustate_path.c_str(), ++count);
57 gonzo_become();
58 if (ustate_is_new)
59 {
60 undo_unlink_errok(filename_new);
61 ustate_write_file(filename_new, ustate_data, 0);
62 commit_rename(filename_new, ustate_path);
63 }
64 else
65 {
66 undo_unlink_errok(filename_new);
67 ustate_write_file(filename_new, ustate_data, 0);
68 commit_rename(ustate_path, filename_old);
69 commit_rename(filename_new, ustate_path);
70 commit_unlink_errok(filename_old);
71 }
72 os_chmod(filename_new, 0644);
73 gonzo_become_undo();
74 ustate_modified = false;
75 ustate_is_new = false;
76 trace(("}\n"));
77 }
78
79
80 // vim: set ts=8 sw=4 et :
81