ipc/ipdl/test/cxx/TestRacyInterruptReplies.cpp@b8a032363ba2
ipc/ipdl/test/cxx/TestRacyInterruptReplies.cpp
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 #include "TestRacyInterruptReplies.h"
3 #include "IPDLUnitTests.h" // fail etc.
5 namespace mozilla {
6 namespace _ipdltest {
8 //-----------------------------------------------------------------------------
9 // parent
11 TestRacyInterruptRepliesParent::TestRacyInterruptRepliesParent() : mReplyNum(0)
12 {
13 MOZ_COUNT_CTOR(TestRacyInterruptRepliesParent);
14 }
16 TestRacyInterruptRepliesParent::~TestRacyInterruptRepliesParent()
17 {
18 MOZ_COUNT_DTOR(TestRacyInterruptRepliesParent);
19 }
21 void
22 TestRacyInterruptRepliesParent::Main()
23 {
24 int replyNum = -1;
25 if (!CallR_(&replyNum))
26 fail("calling R()");
28 if (1 != replyNum)
29 fail("this should have been the first reply to R()");
31 if (!SendChildTest())
32 fail("sending ChildStart");
33 }
35 bool
36 TestRacyInterruptRepliesParent::RecvA_()
37 {
38 int replyNum = -1;
39 // this R() call races with the reply being generated by the other
40 // side to the R() call from Main(). This is a pretty nasty edge
41 // case for which one could argue we're breaking in-order message
42 // delivery, since this side will process the second reply to R()
43 // before the first.
44 if (!CallR_(&replyNum))
45 fail("calling R()");
47 if (2 != replyNum)
48 fail("this should have been the second reply to R()");
50 return true;
51 }
53 bool
54 TestRacyInterruptRepliesParent::Answer_R(int* replyNum)
55 {
56 *replyNum = ++mReplyNum;
58 if (1 == *replyNum)
59 if (!Send_A())
60 fail("sending _A()");
62 return true;
63 }
65 //-----------------------------------------------------------------------------
66 // child
68 TestRacyInterruptRepliesChild::TestRacyInterruptRepliesChild() : mReplyNum(0)
69 {
70 MOZ_COUNT_CTOR(TestRacyInterruptRepliesChild);
71 }
73 TestRacyInterruptRepliesChild::~TestRacyInterruptRepliesChild()
74 {
75 MOZ_COUNT_DTOR(TestRacyInterruptRepliesChild);
76 }
78 bool
79 TestRacyInterruptRepliesChild::AnswerR_(int* replyNum)
80 {
81 *replyNum = ++mReplyNum;
83 if (1 == *replyNum)
84 SendA_();
86 return true;
87 }
89 bool
90 TestRacyInterruptRepliesChild::RecvChildTest()
91 {
92 int replyNum = -1;
93 if (!Call_R(&replyNum))
94 fail("calling R()");
96 if (1 != replyNum)
97 fail("this should have been the first reply to R()");
99 Close();
101 return true;
102 }
104 bool
105 TestRacyInterruptRepliesChild::Recv_A()
106 {
107 int replyNum = -1;
109 if (!Call_R(&replyNum))
110 fail("calling _R()");
112 if (2 != replyNum)
113 fail("this should have been the second reply to R()");
115 return true;
116 }
118 } // namespace _ipdltest
119 } // namespace mozilla
