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comparison gcc/testsuite/ada/acats/tests/c9/c940016.a @ 111:04ced10e8804

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author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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1 -- C940016.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 -- TEST OBJECTIVE:
27 -- Check that an Unchecked_Deallocation of a protected object
28 -- performs the required finalization on the protected object.
29 --
30 -- TEST DESCRIPTION:
31 -- Test that finalization takes place when an Unchecked_Deallocation
32 -- deallocates a protected object with queued callers.
33 -- Try protected objects that have no other finalization code and
34 -- protected objects with user defined finalization.
35 --
36 --
37 -- CHANGE HISTORY:
38 -- 16 Jan 96 SAIC ACVC 2.1
39 -- 10 Jul 96 SAIC Fixed race condition noted by reviewers.
40 --
41 --!
42
43
44 with Ada.Finalization;
45 package C940016_0 is
46 Verbose : constant Boolean := False;
47 Finalization_Occurred : Boolean := False;
48
49 type Has_Finalization is new Ada.Finalization.Limited_Controlled with
50 record
51 Placeholder : Integer;
52 end record;
53 procedure Finalize (Object : in out Has_Finalization);
54 end C940016_0;
55
56
57 with Report;
58 with ImpDef;
59 package body C940016_0 is
60 procedure Finalize (Object : in out Has_Finalization) is
61 begin
62 delay ImpDef.Clear_Ready_Queue;
63 Finalization_Occurred := True;
64 if Verbose then
65 Report.Comment ("in Finalize");
66 end if;
67 end Finalize;
68 end C940016_0;
69
70
71
72 with Report;
73 with Ada.Finalization;
74 with C940016_0;
75 with Ada.Unchecked_Deallocation;
76 with ImpDef;
77
78 procedure C940016 is
79 Verbose : constant Boolean := C940016_0.Verbose;
80
81 begin
82
83 Report.Test ("C940016", "Check that Unchecked_Deallocation of a" &
84 " protected object finalizes the" &
85 " protected object");
86
87 First_Check: declare
88 protected type Semaphore is
89 entry Wait;
90 procedure Signal;
91 private
92 Count : Integer := 0;
93 end Semaphore;
94 protected body Semaphore is
95 entry Wait when Count > 0 is
96 begin
97 Count := Count - 1;
98 end Wait;
99
100 procedure Signal is
101 begin
102 Count := Count + 1;
103 end Signal;
104 end Semaphore;
105
106 type pSem is access Semaphore;
107 procedure Zap_Semaphore is new
108 Ada.Unchecked_Deallocation (Semaphore, pSem);
109 Sem_Ptr : pSem := new Semaphore;
110
111 -- positive confirmation that Blocker got the exception
112 Ok : Boolean := False;
113
114 task Blocker;
115
116 task body Blocker is
117 begin
118 Sem_Ptr.Wait;
119 Report.Failed ("Program_Error not raised in waiting task");
120 exception
121 when Program_Error =>
122 Ok := True;
123 if Verbose then
124 Report.Comment ("Blocker received Program_Error");
125 end if;
126 when others =>
127 Report.Failed ("Wrong exception in Blocker");
128 end Blocker;
129
130 begin -- First_Check
131 -- wait for Blocker to get blocked on the semaphore
132 delay ImpDef.Clear_Ready_Queue;
133 Zap_Semaphore (Sem_Ptr);
134 -- make sure Blocker has time to complete
135 delay ImpDef.Clear_Ready_Queue * 2;
136 if not Ok then
137 Report.Failed ("finalization not properly performed");
138 -- Blocker is probably hung so kill it
139 abort Blocker;
140 end if;
141 end First_Check;
142
143
144 Second_Check : declare
145 -- here we want to check that the raising of Program_Error
146 -- occurs before the other finalization actions.
147 protected type Semaphore is
148 entry Wait;
149 procedure Signal;
150 private
151 Count : Integer := 0;
152 Component : C940016_0.Has_Finalization;
153 end Semaphore;
154 protected body Semaphore is
155 entry Wait when Count > 0 is
156 begin
157 Count := Count - 1;
158 end Wait;
159
160 procedure Signal is
161 begin
162 Count := Count + 1;
163 end Signal;
164 end Semaphore;
165
166 type pSem is access Semaphore;
167 procedure Zap_Semaphore is new
168 Ada.Unchecked_Deallocation (Semaphore, pSem);
169 Sem_Ptr : pSem := new Semaphore;
170
171 -- positive confirmation that Blocker got the exception
172 Ok : Boolean := False;
173
174 task Blocker;
175
176 task body Blocker is
177 begin
178 Sem_Ptr.Wait;
179 Report.Failed ("Program_Error not raised in waiting task 2");
180 exception
181 when Program_Error =>
182 Ok := True;
183 if C940016_0.Finalization_Occurred then
184 Report.Failed ("wrong order for finalization 2");
185 elsif Verbose then
186 Report.Comment ("Blocker received Program_Error 2");
187 end if;
188 when others =>
189 Report.Failed ("Wrong exception in Blocker 2");
190 end Blocker;
191
192 begin -- Second_Check
193 -- wait for Blocker to get blocked on the semaphore
194 delay ImpDef.Clear_Ready_Queue;
195 Zap_Semaphore (Sem_Ptr);
196 -- make sure Blocker has time to complete
197 delay ImpDef.Clear_Ready_Queue * 2;
198 if not Ok then
199 Report.Failed ("finalization not properly performed 2");
200 -- Blocker is probably hung so kill it
201 abort Blocker;
202 end if;
203 if not C940016_0.Finalization_Occurred then
204 Report.Failed ("user defined finalization didn't happen");
205 end if;
206 end Second_Check;
207
208
209 Report.Result;
210
211 end C940016;