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comparison: ipc/ipdl/test/cxx/TestShmem.cpp
ipc/ipdl/test/cxx/TestShmem.cpp
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:ef532239f94f |
|---|---|
| 1 #include "TestShmem.h" | |
| 2 | |
| 3 #include "IPDLUnitTests.h" // fail etc. | |
| 4 | |
| 5 | |
| 6 namespace mozilla { | |
| 7 namespace _ipdltest { | |
| 8 | |
| 9 //----------------------------------------------------------------------------- | |
| 10 // Parent | |
| 11 | |
| 12 void | |
| 13 TestShmemParent::Main() | |
| 14 { | |
| 15 Shmem mem; | |
| 16 Shmem unsafe; | |
| 17 | |
| 18 size_t size = 12345; | |
| 19 if (!AllocShmem(size, SharedMemory::TYPE_BASIC, &mem)) | |
| 20 fail("can't alloc shmem"); | |
| 21 if (!AllocUnsafeShmem(size, SharedMemory::TYPE_BASIC, &unsafe)) | |
| 22 fail("can't alloc shmem"); | |
| 23 | |
| 24 if (mem.Size<char>() != size) | |
| 25 fail("shmem is wrong size: expected %lu, got %lu", | |
| 26 size, mem.Size<char>()); | |
| 27 if (unsafe.Size<char>() != size) | |
| 28 fail("shmem is wrong size: expected %lu, got %lu", | |
| 29 size, unsafe.Size<char>()); | |
| 30 | |
| 31 char* ptr = mem.get<char>(); | |
| 32 memcpy(ptr, "Hello!", sizeof("Hello!")); | |
| 33 | |
| 34 char* unsafeptr = unsafe.get<char>(); | |
| 35 memcpy(unsafeptr, "Hello!", sizeof("Hello!")); | |
| 36 | |
| 37 Shmem unsafecopy = unsafe; | |
| 38 if (!SendGive(mem, unsafe, size)) | |
| 39 fail("can't send Give()"); | |
| 40 | |
| 41 // uncomment the following line for a (nondeterministic) surprise! | |
| 42 //char c1 = *ptr; (void)c1; | |
| 43 | |
| 44 // uncomment the following line for a deterministic surprise! | |
| 45 //char c2 = *mem.get<char>(); (void)c2; | |
| 46 | |
| 47 // unsafe shmem gets rid of those checks | |
| 48 char uc1 = *unsafeptr; (void)uc1; | |
| 49 char uc2 = *unsafecopy.get<char>(); (void)uc2; | |
| 50 } | |
| 51 | |
| 52 | |
| 53 bool | |
| 54 TestShmemParent::RecvTake(Shmem& mem, Shmem& unsafe, | |
| 55 const size_t& expectedSize) | |
| 56 { | |
| 57 if (mem.Size<char>() != expectedSize) | |
| 58 fail("expected shmem size %lu, but it has size %lu", | |
| 59 expectedSize, mem.Size<char>()); | |
| 60 if (unsafe.Size<char>() != expectedSize) | |
| 61 fail("expected shmem size %lu, but it has size %lu", | |
| 62 expectedSize, unsafe.Size<char>()); | |
| 63 | |
| 64 if (strcmp(mem.get<char>(), "And yourself!")) | |
| 65 fail("expected message was not written"); | |
| 66 if (strcmp(unsafe.get<char>(), "And yourself!")) | |
| 67 fail("expected message was not written"); | |
| 68 | |
| 69 if (!DeallocShmem(mem)) | |
| 70 fail("DeallocShmem"); | |
| 71 if (!DeallocShmem(unsafe)) | |
| 72 fail("DeallocShmem"); | |
| 73 | |
| 74 Close(); | |
| 75 | |
| 76 return true; | |
| 77 } | |
| 78 | |
| 79 //----------------------------------------------------------------------------- | |
| 80 // Child | |
| 81 | |
| 82 bool | |
| 83 TestShmemChild::RecvGive(Shmem& mem, Shmem& unsafe, const size_t& expectedSize) | |
| 84 { | |
| 85 if (mem.Size<char>() != expectedSize) | |
| 86 fail("expected shmem size %lu, but it has size %lu", | |
| 87 expectedSize, mem.Size<char>()); | |
| 88 if (unsafe.Size<char>() != expectedSize) | |
| 89 fail("expected shmem size %lu, but it has size %lu", | |
| 90 expectedSize, unsafe.Size<char>()); | |
| 91 | |
| 92 if (strcmp(mem.get<char>(), "Hello!")) | |
| 93 fail("expected message was not written"); | |
| 94 if (strcmp(unsafe.get<char>(), "Hello!")) | |
| 95 fail("expected message was not written"); | |
| 96 | |
| 97 char* unsafeptr = unsafe.get<char>(); | |
| 98 | |
| 99 memcpy(mem.get<char>(), "And yourself!", sizeof("And yourself!")); | |
| 100 memcpy(unsafeptr, "And yourself!", sizeof("And yourself!")); | |
| 101 | |
| 102 Shmem unsafecopy = unsafe; | |
| 103 if (!SendTake(mem, unsafe, expectedSize)) | |
| 104 fail("can't send Take()"); | |
| 105 | |
| 106 // these checks also shouldn't fail in the child | |
| 107 char uc1 = *unsafeptr; (void)uc1; | |
| 108 char uc2 = *unsafecopy.get<char>(); (void)uc2; | |
| 109 | |
| 110 return true; | |
| 111 } | |
| 112 | |
| 113 | |
| 114 } // namespace _ipdltest | |
| 115 } // namespace mozilla |
