1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
2 /* dbus-pipe-win.c windows related pipe implementation
3 *
4 * Copyright (C) 2002, 2003, 2006 Red Hat, Inc.
5 * Copyright (C) 2003 CodeFactory AB
6 *
7 * Licensed under the Academic Free License version 2.1
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 *
23 */
24
25 #include <config.h>
26 #include "dbus-protocol.h"
27 #include "dbus-string.h"
28 #include "dbus-internals.h"
29 #include "dbus-pipe.h"
30
31 #include <windows.h>
32
33 /**
34 * write data to a pipe.
35 *
36 * @param pipe the pipe instance
37 * @param buffer the buffer to write data from
38 * @param start the first byte in the buffer to write
39 * @param len the number of bytes to try to write
40 * @param error error return
41 * @returns the number of bytes written or -1 on error
42 */
43 int
_dbus_pipe_write(DBusPipe * pipe,const DBusString * buffer,int start,int len,DBusError * error)44 _dbus_pipe_write (DBusPipe *pipe,
45 const DBusString *buffer,
46 int start,
47 int len,
48 DBusError *error)
49 {
50 DWORD written;
51 BOOL res;
52
53 const char *buffer_c = _dbus_string_get_const_data (buffer);
54
55 res = WriteFile ((HANDLE) pipe->fd_or_handle, buffer_c + start, len, &written, NULL);
56 if (res == 0 || written < 0)
57 {
58 dbus_set_error (error, DBUS_ERROR_FAILED,
59 "Writing to pipe: %s\n",
60 _dbus_strerror_from_errno ());
61 }
62 return written;
63 }
64
65 /**
66 * close a pipe.
67 *
68 * @param pipe the pipe instance
69 * @param error return location for an error
70 * @returns #FALSE if error is set
71 */
72 int
_dbus_pipe_close(DBusPipe * pipe,DBusError * error)73 _dbus_pipe_close (DBusPipe *pipe,
74 DBusError *error)
75 {
76 _DBUS_ASSERT_ERROR_IS_CLEAR (error);
77
78 if (CloseHandle ((HANDLE) pipe->fd_or_handle) == 0)
79 {
80 dbus_set_error (error, _dbus_error_from_system_errno (),
81 "Could not close pipe %d: %s", pipe->fd_or_handle,
82 _dbus_strerror_from_errno ());
83 return -1;
84 }
85 else
86 {
87 _dbus_pipe_invalidate (pipe);
88 return 0;
89 }
90 }
91