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comparison gcc/testsuite/ada/acats/tests/c9/c940011.a @ 111:04ced10e8804

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author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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1 -- C940011.A
2 --
3 -- Grant of Unlimited Rights
4 --
5 -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
6 -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
7 -- unlimited rights in the software and documentation contained herein.
8 -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
9 -- this public release, the Government intends to confer upon all
10 -- recipients unlimited rights equal to those held by the Government.
11 -- These rights include rights to use, duplicate, release or disclose the
12 -- released technical data and computer software in whole or in part, in
13 -- any manner and for any purpose whatsoever, and to have or permit others
14 -- to do so.
15 --
16 -- DISCLAIMER
17 --
18 -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
19 -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
20 -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
21 -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
22 -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
23 -- PARTICULAR PURPOSE OF SAID MATERIAL.
24 --*
25 --
26 -- OBJECTIVE:
27 -- Check that, in the body of a protected object created by the execution
28 -- of an allocator, external calls to other protected objects via
29 -- the access type are correctly performed
30 --
31 -- TEST DESCRIPTION:
32 -- Use a subset of the simulation of the freeway on-ramp described in
33 -- c940005. In this case an array of access types is built with pointers
34 -- to successive ramps. The external calls within the protected
35 -- objects are made via the index into the array. Routines which refer
36 -- to the "previous" ramp and the "next" ramp are exercised. (Note: The
37 -- first and last ramps are assumed to be dummies and no first/last
38 -- condition code is included)
39 --
40 --
41 -- CHANGE HISTORY:
42 -- 06 Dec 94 SAIC ACVC 2.0
43 --
44 --!
45
46
47 with Report;
48
49
50 procedure C940011 is
51
52 type Ramp;
53 type acc_Ramp is access Ramp;
54
55 subtype Ramp_Index is integer range 1..4;
56
57
58 -- Weighted load given to each potential problem area and accumulated
59 type Load_Factor is range 0..8;
60 Clear_Level : constant Load_Factor := 0;
61 Moderate_Level : constant Load_Factor := 3;
62
63 --================================================================
64 -- Only the Routines that are used in this test are shown
65 --
66 protected type Ramp is
67
68 procedure Set_Index (Index : Ramp_Index);
69 procedure Set_Local_Overload (Sensor_Level : Load_Factor);
70 function Local_Overload return Load_Factor;
71 procedure Notify;
72 function Next_Ramp_Overload return Load_Factor;
73
74 private
75
76 This_Ramp : Ramp_Index;
77
78 Next_Ramp_Alert : Boolean := false; -- Next Ramp is in trouble?
79
80 -- Current state of the various Sample Points
81 Local_State : Load_Factor := Clear_Level;
82
83 end Ramp;
84 --================================================================
85
86 -- Build a set of Ramp objects and an array of pointers to them
87 --
88 Ramp_Array : array (Ramp_Index) of acc_Ramp := (Ramp_Index => new Ramp);
89
90 --================================================================
91 protected body Ramp is
92
93 procedure Set_Index (Index : Ramp_Index) is
94 begin
95 This_Ramp := Index;
96 end Set_Index;
97
98 -- These Set/Clear routines are triggered by real-time sensors that
99 -- reflect traffic state
100 procedure Set_Local_Overload(Sensor_Level : Load_Factor) is
101 begin
102 if Local_State = Clear_Level then
103 -- Notify "previous" ramp to check this one for current state.
104 -- Subsequent changes in state will not send an alert
105 -- When the situation clears another routine performs the
106 -- all_clear notification. (not shown)
107 -- EXTERNAL CALL OF PROCEDURE FROM PROCEDURE
108 Ramp_Array(This_Ramp - 1).Notify; -- index to previous ramp
109 end if;
110 Local_State := Sensor_Level;
111 null; --::::: Start local meter if not already started
112 end Set_Local_Overload;
113
114 function Local_Overload return Load_Factor is
115 begin
116 return Local_State;
117 end Local_Overload;
118
119 -- This is notification from the next ramp that it is in
120 -- overload. With this provision we only need to sample the next
121 -- ramp during adverse conditions.
122 procedure Notify is
123 begin
124 Next_Ramp_Alert := true;
125 end Notify;
126
127 function Next_Ramp_Overload return Load_Factor is
128 begin
129 if Next_Ramp_Alert then
130 -- EXTERNAL FUNCTION CALL FROM FUNCTION
131 -- Get next ramp's current state
132 return Ramp_Array(This_Ramp + 1).Local_Overload;
133 else
134 return Clear_Level;
135 end if;
136 end Next_Ramp_Overload;
137 end Ramp;
138
139 --================================================================
140
141
142 begin
143
144
145 Report.Test ("C940011", "Protected Objects created by allocators: " &
146 "external calls via access types");
147
148 -- Initialize each Ramp
149 for i in Ramp_Index loop
150 Ramp_Array(i).Set_Index (i);
151 end loop;
152
153 -- Test driver. This is ALL test control code
154
155 -- Simulate calls to the protected functions and procedures
156 -- external calls. (do not call the "dummy" end ramps)
157
158 -- Simple Call
159 if Ramp_Array(2).Next_Ramp_Overload /= Clear_level then
160 Report.Failed ("Primary call incorrect");
161 end if;
162
163 -- Call which results in an external procedure call via the array
164 -- index from within the protected object
165 Ramp_Array(3).Set_Local_Overload (Moderate_Level);
166
167 -- Call which results in an external function call via the array
168 -- index from within the protected object
169 if Ramp_Array(2).Next_Ramp_Overload /= Moderate_level then
170 Report.Failed ("Secondary call incorrect");
171 end if;
172
173 Report.Result;
174
175 end C940011;