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#include "TestShmem.h"
#include "IPDLUnitTests.h" // fail etc.
namespace mozilla {
namespace _ipdltest {
//-----------------------------------------------------------------------------
// Parent
void TestShmemParent::Main() {
Shmem mem;
Shmem unsafe;
size_t size = 12345;
if (!AllocShmem(size, &mem)) fail("can't alloc shmem");
if (!AllocUnsafeShmem(size, &unsafe)) fail("can't alloc shmem");
if (mem.Size<char>() != size)
fail("shmem is wrong size: expected %lu, got %lu", size, mem.Size<char>());
if (unsafe.Size<char>() != size)
fail("shmem is wrong size: expected %lu, got %lu", size,
unsafe.Size<char>());
char* ptr = mem.get<char>();
memcpy(ptr, "Hello!", sizeof("Hello!"));
char* unsafeptr = unsafe.get<char>();
memcpy(unsafeptr, "Hello!", sizeof("Hello!"));
Shmem unsafecopy = unsafe;
if (!SendGive(std::move(mem), std::move(unsafe), size))
fail("can't send Give()");
// uncomment the following line for a (nondeterministic) surprise!
// char c1 = *ptr; (void)c1;
// uncomment the following line for a deterministic surprise!
// char c2 = *mem.get<char>(); (void)c2;
// unsafe shmem gets rid of those checks
char uc1 = *unsafeptr;
(void)uc1;
char uc2 = *unsafecopy.get<char>();
(void)uc2;
}
mozilla::ipc::IPCResult TestShmemParent::RecvTake(Shmem&& mem, Shmem&& unsafe,
const size_t& expectedSize) {
if (mem.Size<char>() != expectedSize)
fail("expected shmem size %lu, but it has size %lu", expectedSize,
mem.Size<char>());
if (unsafe.Size<char>() != expectedSize)
fail("expected shmem size %lu, but it has size %lu", expectedSize,
unsafe.Size<char>());
if (strcmp(mem.get<char>(), "And yourself!"))
fail("expected message was not written");
if (strcmp(unsafe.get<char>(), "And yourself!"))
fail("expected message was not written");
if (!DeallocShmem(mem)) fail("DeallocShmem");
if (!DeallocShmem(unsafe)) fail("DeallocShmem");
Close();
return IPC_OK();
}
//-----------------------------------------------------------------------------
// Child
mozilla::ipc::IPCResult TestShmemChild::RecvGive(Shmem&& mem, Shmem&& unsafe,
const size_t& expectedSize) {
if (mem.Size<char>() != expectedSize)
fail("expected shmem size %lu, but it has size %lu", expectedSize,
mem.Size<char>());
if (unsafe.Size<char>() != expectedSize)
fail("expected shmem size %lu, but it has size %lu", expectedSize,
unsafe.Size<char>());
if (strcmp(mem.get<char>(), "Hello!"))
fail("expected message was not written");
if (strcmp(unsafe.get<char>(), "Hello!"))
fail("expected message was not written");
char* unsafeptr = unsafe.get<char>();
memcpy(mem.get<char>(), "And yourself!", sizeof("And yourself!"));
memcpy(unsafeptr, "And yourself!", sizeof("And yourself!"));
Shmem unsafecopy = unsafe;
if (!SendTake(std::move(mem), std::move(unsafe), expectedSize))
fail("can't send Take()");
// these checks also shouldn't fail in the child
char uc1 = *unsafeptr;
(void)uc1;
char uc2 = *unsafecopy.get<char>();
(void)uc2;
return IPC_OK();
}
} // namespace _ipdltest
} // namespace mozilla
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