1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** GUIX Component */
16 /** */
17 /** System Management (System) */
18 /** */
19 /**************************************************************************/
20
21 #define GX_SOURCE_CODE
22
23
24 /* Include necessary system files. */
25
26 #include "gx_api.h"
27 #include "gx_system.h"
28 #include "gx_utility.h"
29
30
31 /**************************************************************************/
32 /* */
33 /* FUNCTION RELEASE */
34 /* */
35 /* _gx_system_free_view_get PORTABLE C */
36 /* 6.1 */
37 /* AUTHOR */
38 /* */
39 /* Kenneth Maxwell, Microsoft Corporation */
40 /* */
41 /* DESCRIPTION */
42 /* */
43 /* Grabs a free GX_VIEW from the list of free views, updates free */
44 /* view list. */
45 /* */
46 /* */
47 /* INPUT */
48 /* */
49 /* None */
50 /* */
51 /* OUTPUT */
52 /* */
53 /* Returns a pointer to a free GX_VIEW structure */
54 /* */
55 /* CALLS */
56 /* */
57 /* _gx_system_error_process Process a system error */
58 /* */
59 /* CALLED BY */
60 /* */
61 /* _gx_system_view_add Link a view to window's */
62 /* view list */
63 /* */
64 /* RELEASE HISTORY */
65 /* */
66 /* DATE NAME DESCRIPTION */
67 /* */
68 /* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */
69 /* 09-30-2020 Kenneth Maxwell Modified comment(s), */
70 /* resulting in version 6.1 */
71 /* */
72 /**************************************************************************/
73
_gx_system_free_view_get(VOID)74 GX_VIEW *_gx_system_free_view_get(VOID)
75 {
76 GX_VIEW *retval = GX_NULL;
77
78 if (_gx_system_free_views)
79 {
80 retval = _gx_system_free_views;
81 _gx_system_free_views = _gx_system_free_views -> gx_view_next;
82 }
83 else
84 {
85 _gx_system_error_process(GX_SYSTEM_OUT_OF_VIEWS);
86 }
87 return retval;
88 }
89
90
