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comparison: ipc/ipdl/test/cxx/TestSysVShmem.cpp
ipc/ipdl/test/cxx/TestSysVShmem.cpp
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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| -1:000000000000 | 0:0ca4a81c6cf2 |
|---|---|
| 1 #include "TestSysVShmem.h" | |
| 2 | |
| 3 #include "IPDLUnitTests.h" // fail etc. | |
| 4 | |
| 5 | |
| 6 namespace mozilla { | |
| 7 namespace _ipdltest { | |
| 8 | |
| 9 //----------------------------------------------------------------------------- | |
| 10 // Parent | |
| 11 | |
| 12 void | |
| 13 TestSysVShmemParent::Main() | |
| 14 { | |
| 15 Shmem mem; | |
| 16 Shmem unsafe; | |
| 17 | |
| 18 size_t size = 12345; | |
| 19 if (!AllocShmem(size, SharedMemory::TYPE_SYSV, &mem)) | |
| 20 fail("can't alloc shmem"); | |
| 21 if (!AllocUnsafeShmem(size, SharedMemory::TYPE_SYSV, &unsafe)) | |
| 22 fail("can't alloc shmem"); | |
| 23 | |
| 24 if (0 > mem.GetSysVID()) | |
| 25 fail("invalid shmem ID"); | |
| 26 if (0 > unsafe.GetSysVID()) | |
| 27 fail("invalid shmem ID"); | |
| 28 | |
| 29 if (mem.Size<char>() != size) | |
| 30 fail("shmem is wrong size: expected %lu, got %lu", | |
| 31 size, mem.Size<char>()); | |
| 32 if (unsafe.Size<char>() != size) | |
| 33 fail("shmem is wrong size: expected %lu, got %lu", | |
| 34 size, unsafe.Size<char>()); | |
| 35 | |
| 36 char* ptr = mem.get<char>(); | |
| 37 memcpy(ptr, "Hello!", sizeof("Hello!")); | |
| 38 | |
| 39 char* unsafeptr = unsafe.get<char>(); | |
| 40 memcpy(unsafeptr, "Hello!", sizeof("Hello!")); | |
| 41 | |
| 42 Shmem unsafecopy = unsafe; | |
| 43 if (!SendGive(mem, unsafe, size)) | |
| 44 fail("can't send Give()"); | |
| 45 | |
| 46 // uncomment the following line for a (nondeterministic) surprise! | |
| 47 //char c1 = *ptr; (void)c1; | |
| 48 | |
| 49 // uncomment the following line for a deterministic surprise! | |
| 50 //char c2 = *mem.get<char>(); (void)c2; | |
| 51 | |
| 52 // unsafe shmem gets rid of those checks | |
| 53 char uc1 = *unsafeptr; (void)uc1; | |
| 54 char uc2 = *unsafecopy.get<char>(); (void)uc2; | |
| 55 } | |
| 56 | |
| 57 | |
| 58 bool | |
| 59 TestSysVShmemParent::RecvTake(Shmem& mem, Shmem& unsafe, | |
| 60 const size_t& expectedSize) | |
| 61 { | |
| 62 if (mem.Size<char>() != expectedSize) | |
| 63 fail("expected shmem size %lu, but it has size %lu", | |
| 64 expectedSize, mem.Size<char>()); | |
| 65 if (unsafe.Size<char>() != expectedSize) | |
| 66 fail("expected shmem size %lu, but it has size %lu", | |
| 67 expectedSize, unsafe.Size<char>()); | |
| 68 | |
| 69 if (strcmp(mem.get<char>(), "And yourself!")) | |
| 70 fail("expected message was not written"); | |
| 71 if (strcmp(unsafe.get<char>(), "And yourself!")) | |
| 72 fail("expected message was not written"); | |
| 73 | |
| 74 if (!DeallocShmem(mem)) | |
| 75 fail("DeallocShmem"); | |
| 76 if (!DeallocShmem(unsafe)) | |
| 77 fail("DeallocShmem"); | |
| 78 | |
| 79 Close(); | |
| 80 | |
| 81 return true; | |
| 82 } | |
| 83 | |
| 84 //----------------------------------------------------------------------------- | |
| 85 // Child | |
| 86 | |
| 87 bool | |
| 88 TestSysVShmemChild::RecvGive(Shmem& mem, Shmem& unsafe, const size_t& expectedSize) | |
| 89 { | |
| 90 if (mem.Size<char>() != expectedSize) | |
| 91 fail("expected shmem size %lu, but it has size %lu", | |
| 92 expectedSize, mem.Size<char>()); | |
| 93 if (unsafe.Size<char>() != expectedSize) | |
| 94 fail("expected shmem size %lu, but it has size %lu", | |
| 95 expectedSize, unsafe.Size<char>()); | |
| 96 | |
| 97 if (strcmp(mem.get<char>(), "Hello!")) | |
| 98 fail("expected message was not written"); | |
| 99 if (strcmp(unsafe.get<char>(), "Hello!")) | |
| 100 fail("expected message was not written"); | |
| 101 | |
| 102 char* unsafeptr = unsafe.get<char>(); | |
| 103 | |
| 104 memcpy(mem.get<char>(), "And yourself!", sizeof("And yourself!")); | |
| 105 memcpy(unsafeptr, "And yourself!", sizeof("And yourself!")); | |
| 106 | |
| 107 Shmem unsafecopy = unsafe; | |
| 108 if (!SendTake(mem, unsafe, expectedSize)) | |
| 109 fail("can't send Take()"); | |
| 110 | |
| 111 // these checks also shouldn't fail in the child | |
| 112 char uc1 = *unsafeptr; (void)uc1; | |
| 113 char uc2 = *unsafecopy.get<char>(); (void)uc2; | |
| 114 | |
| 115 return true; | |
| 116 } | |
| 117 | |
| 118 | |
| 119 } // namespace _ipdltest | |
| 120 } // namespace mozilla |
