1 | /* |
---|
2 | ------------------------------------------------------------------------ |
---|
3 | |
---|
4 | COPYRIGHT (c) 1997 |
---|
5 | Objective Design Systems Ltd Pty (ODS) |
---|
6 | All rights reserved (R) Objective Design Systems Ltd Pty |
---|
7 | |
---|
8 | The license and distribution terms for this file may be found in the |
---|
9 | file LICENSE in this distribution or at |
---|
10 | http://www.rtems.org/license/LICENSE. |
---|
11 | |
---|
12 | ------------------------------------------------------------------------ |
---|
13 | |
---|
14 | rtemsTaskMode class. |
---|
15 | |
---|
16 | This class allows the user to query or change the mode of an RTEMS |
---|
17 | task. |
---|
18 | |
---|
19 | This object only operates on the currently executing task. |
---|
20 | |
---|
21 | The standard flags defined in RTEMS are used. |
---|
22 | |
---|
23 | Methods are provided to operate on a group of modes which are |
---|
24 | required to be changed in a single operation. The mode and mask is |
---|
25 | specified by ORing the required flags. |
---|
26 | |
---|
27 | Methods are provided for accessing and controlling a specific |
---|
28 | mode. The returned value will only contain the requested mode's flags, |
---|
29 | and only the that mode will be changed when setting a mode. |
---|
30 | |
---|
31 | ------------------------------------------------------------------------ */ |
---|
32 | |
---|
33 | #if !defined(_rtemsTaskMode_h_) |
---|
34 | #define _rtemsTaskMode_h_ |
---|
35 | |
---|
36 | #include <rtems++/rtemsStatusCode.h> |
---|
37 | |
---|
38 | /* ---- |
---|
39 | rtemsTaskMode |
---|
40 | */ |
---|
41 | |
---|
42 | class rtemsTaskMode |
---|
43 | : public rtemsStatusCode |
---|
44 | { |
---|
45 | public: |
---|
46 | |
---|
47 | rtemsTaskMode() {}; |
---|
48 | |
---|
49 | // group mode control, OR the values together |
---|
50 | inline const rtems_status_code get_mode(rtems_mode& mode); |
---|
51 | inline const rtems_status_code set_mode(const rtems_mode mode, |
---|
52 | const rtems_mode mask); |
---|
53 | inline const rtems_status_code set_mode(const rtems_mode mode, |
---|
54 | const rtems_mode mask, |
---|
55 | rtems_mode& old_mode); |
---|
56 | |
---|
57 | // preemption control |
---|
58 | inline const rtems_status_code get_preemption_state(rtems_mode& preemption); |
---|
59 | inline const rtems_status_code set_preemption_state(const rtems_mode preemption); |
---|
60 | inline const rtems_status_code set_preemption_state(const rtems_mode preemption, |
---|
61 | rtems_mode& old_preemption); |
---|
62 | inline const bool preemption_set(const rtems_mode preemption); |
---|
63 | |
---|
64 | // timeslice control |
---|
65 | inline const rtems_status_code get_timeslice_state(rtems_mode& timeslice); |
---|
66 | inline const rtems_status_code set_timeslice_state(const rtems_mode timeslice); |
---|
67 | inline const rtems_status_code set_timeslice_state(const rtems_mode timeslice, |
---|
68 | rtems_mode& old_timeslice); |
---|
69 | inline const bool timeslice_set(const rtems_mode preemption); |
---|
70 | |
---|
71 | // async-sub-routine control |
---|
72 | inline const rtems_status_code get_asr_state(rtems_mode& asr); |
---|
73 | inline const rtems_status_code set_asr_state(const rtems_mode asr); |
---|
74 | inline const rtems_status_code set_asr_state(const rtems_mode asr, |
---|
75 | rtems_mode& old_asr); |
---|
76 | inline const bool asr_set(const rtems_mode preemption); |
---|
77 | |
---|
78 | // interrupt mask control |
---|
79 | inline const rtems_status_code get_interrupt_level(rtems_interrupt_level& level); |
---|
80 | inline const rtems_status_code set_interrupt_level(const rtems_interrupt_level level); |
---|
81 | inline const rtems_status_code set_interrupt_level(const rtems_interrupt_level level, |
---|
82 | rtems_interrupt_level& old_level); |
---|
83 | }; |
---|
84 | |
---|
85 | const rtems_status_code rtemsTaskMode::get_mode(rtems_mode& mode) |
---|
86 | { |
---|
87 | return set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &mode)); |
---|
88 | } |
---|
89 | |
---|
90 | const rtems_status_code rtemsTaskMode::set_mode(const rtems_mode mode, |
---|
91 | const rtems_mode mask) |
---|
92 | { |
---|
93 | rtems_mode old_mode; |
---|
94 | return set_status_code(rtems_task_mode(mode, mask, &old_mode)); |
---|
95 | } |
---|
96 | |
---|
97 | const rtems_status_code rtemsTaskMode::set_mode(const rtems_mode mode, |
---|
98 | const rtems_mode mask, |
---|
99 | rtems_mode& old_mode) |
---|
100 | { |
---|
101 | return set_status_code(rtems_task_mode(mode, mask, &old_mode)); |
---|
102 | } |
---|
103 | |
---|
104 | const rtems_status_code rtemsTaskMode::get_preemption_state(rtems_mode& preemption) |
---|
105 | { |
---|
106 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &preemption)); |
---|
107 | preemption &= RTEMS_PREEMPT_MASK; |
---|
108 | return last_status_code(); |
---|
109 | } |
---|
110 | |
---|
111 | const rtems_status_code rtemsTaskMode::set_preemption_state(const rtems_mode preemption) |
---|
112 | { |
---|
113 | rtems_mode old_mode; |
---|
114 | return set_status_code(rtems_task_mode(preemption, RTEMS_PREEMPT_MASK, &old_mode)); |
---|
115 | } |
---|
116 | |
---|
117 | const rtems_status_code rtemsTaskMode::set_preemption_state(const rtems_mode preemption, |
---|
118 | rtems_mode& old_preemption) |
---|
119 | { |
---|
120 | set_status_code(rtems_task_mode(preemption, RTEMS_PREEMPT_MASK, &old_preemption)); |
---|
121 | old_preemption &= RTEMS_PREEMPT_MASK; |
---|
122 | return last_status_code(); |
---|
123 | } |
---|
124 | |
---|
125 | const bool rtemsTaskMode::preemption_set(const rtems_mode preemption) |
---|
126 | { |
---|
127 | return (preemption & RTEMS_PREEMPT_MASK) ? false : true; |
---|
128 | } |
---|
129 | |
---|
130 | const rtems_status_code rtemsTaskMode::get_timeslice_state(rtems_mode& timeslice) |
---|
131 | { |
---|
132 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, ×lice)); |
---|
133 | timeslice &= RTEMS_TIMESLICE_MASK; |
---|
134 | return last_status_code(); |
---|
135 | } |
---|
136 | |
---|
137 | const rtems_status_code rtemsTaskMode::set_timeslice_state(const rtems_mode timeslice) |
---|
138 | { |
---|
139 | rtems_mode old_mode; |
---|
140 | return set_status_code(rtems_task_mode(timeslice, RTEMS_TIMESLICE_MASK, &old_mode)); |
---|
141 | } |
---|
142 | |
---|
143 | const rtems_status_code rtemsTaskMode::set_timeslice_state(const rtems_mode timeslice, |
---|
144 | rtems_mode& old_timeslice) |
---|
145 | { |
---|
146 | set_status_code(rtems_task_mode(timeslice, RTEMS_TIMESLICE_MASK, &old_timeslice)); |
---|
147 | old_timeslice &= RTEMS_TIMESLICE_MASK; |
---|
148 | return last_status_code(); |
---|
149 | } |
---|
150 | |
---|
151 | const bool rtemsTaskMode::timeslice_set(const rtems_mode timeslice) |
---|
152 | { |
---|
153 | return (timeslice & RTEMS_TIMESLICE_MASK) ? true : false; |
---|
154 | } |
---|
155 | |
---|
156 | const rtems_status_code rtemsTaskMode::get_asr_state(rtems_mode& asr) |
---|
157 | { |
---|
158 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &asr)); |
---|
159 | asr &= RTEMS_ASR_MASK; |
---|
160 | return last_status_code(); |
---|
161 | } |
---|
162 | |
---|
163 | const rtems_status_code rtemsTaskMode::set_asr_state(const rtems_mode asr) |
---|
164 | { |
---|
165 | rtems_mode old_mode; |
---|
166 | return set_status_code(rtems_task_mode(asr, RTEMS_ASR_MASK, &old_mode)); |
---|
167 | } |
---|
168 | |
---|
169 | const rtems_status_code rtemsTaskMode::set_asr_state(const rtems_mode asr, |
---|
170 | rtems_mode& old_asr) |
---|
171 | { |
---|
172 | set_status_code(rtems_task_mode(asr, RTEMS_ASR_MASK, &old_asr)); |
---|
173 | old_asr &= RTEMS_ASR_MASK; |
---|
174 | return last_status_code(); |
---|
175 | } |
---|
176 | |
---|
177 | const bool rtemsTaskMode::asr_set(const rtems_mode asr) |
---|
178 | { |
---|
179 | return (asr & RTEMS_ASR_MASK) ? true : false; |
---|
180 | } |
---|
181 | |
---|
182 | const rtems_status_code rtemsTaskMode::get_interrupt_level(rtems_interrupt_level& level) |
---|
183 | { |
---|
184 | rtems_mode mode; |
---|
185 | set_status_code(rtems_task_mode(0, RTEMS_CURRENT_MODE, &mode)); |
---|
186 | level = mode & RTEMS_INTERRUPT_MASK; |
---|
187 | return last_status_code(); |
---|
188 | } |
---|
189 | |
---|
190 | const rtems_status_code rtemsTaskMode::set_interrupt_level(const rtems_interrupt_level level) |
---|
191 | { |
---|
192 | rtems_mode old_mode; |
---|
193 | return set_status_code(rtems_task_mode(level, RTEMS_INTERRUPT_MASK, &old_mode)); |
---|
194 | } |
---|
195 | |
---|
196 | const rtems_status_code rtemsTaskMode::set_interrupt_level(rtems_interrupt_level level, |
---|
197 | rtems_interrupt_level& old_level) |
---|
198 | { |
---|
199 | set_status_code(rtems_task_mode(level, RTEMS_INTERRUPT_MASK, &old_level)); |
---|
200 | old_level = old_level & RTEMS_INTERRUPT_MASK; |
---|
201 | return last_status_code(); |
---|
202 | } |
---|
203 | |
---|
204 | #endif // _rtemsTaskMode_h_ |
---|