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 
29 /* Bring in externs for caller checking code.  */
30 GX_CALLER_CHECKING_EXTERNS
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _gxe_system_timer_start                             PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Kenneth Maxwell, Microsoft Corporation                              */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    This function checks for errors in system timer start call.         */
45 /*                                                                        */
46 /*  INPUT                                                                 */
47 /*                                                                        */
48 /*    owner                                 Pointer to widget control     */
49 /*                                            block                       */
50 /*    timer_id                              ID of timer                   */
51 /*    initial ticks                         Initial expiration ticks      */
52 /*    reschedule_ticks                      Periodic expiration ticks     */
53 /*                                                                        */
54 /*  OUTPUT                                                                */
55 /*                                                                        */
56 /*    status                                Completion status             */
57 /*                                                                        */
58 /*  CALLS                                                                 */
59 /*                                                                        */
60 /*   _gx_system_timer_start                 Actual system timer start call*/
61 /*                                                                        */
62 /*  CALLED BY                                                             */
63 /*                                                                        */
64 /*    GUIX Application                                                    */
65 /*                                                                        */
66 /*  RELEASE HISTORY                                                       */
67 /*                                                                        */
68 /*    DATE              NAME                      DESCRIPTION             */
69 /*                                                                        */
70 /*  05-19-2020     Kenneth Maxwell          Initial Version 6.0           */
71 /*  09-30-2020     Kenneth Maxwell          Modified comment(s),          */
72 /*                                            resulting in version 6.1    */
73 /*                                                                        */
74 /**************************************************************************/
_gxe_system_timer_start(GX_WIDGET * owner,UINT timer_id,UINT initial_ticks,UINT reschedule_ticks)75 UINT  _gxe_system_timer_start(GX_WIDGET *owner, UINT timer_id, UINT initial_ticks, UINT reschedule_ticks)
76 {
77 UINT status;
78 
79     /* Check for invalid caller.  */
80     GX_INIT_AND_THREADS_CALLER_CHECKING
81 
82     /* Check for no more timers.  */
83     if (!_gx_system_free_timer_list)
84     {
85         return(GX_OUT_OF_TIMERS);
86     }
87 
88     /* Check for invalid pointer.  */
89     if (owner == GX_NULL)
90     {
91         return(GX_PTR_ERROR);
92     }
93 
94     /* Check for invalid widget.  */
95     if (owner -> gx_widget_type <= 0)
96     {
97         return(GX_INVALID_WIDGET);
98     }
99 
100     /* Check for invalid time values.  */
101     if (initial_ticks == 0)
102     {
103         return(GX_INVALID_VALUE);
104     }
105 
106     /* Call actual system timer start.  */
107     status = _gx_system_timer_start(owner, timer_id, initial_ticks, reschedule_ticks);
108 
109     /* Return status.  */
110     return(status);
111 }
112 
113