IPC::Message*
Shmem::ShareTo(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead,
base::ProcessHandle aProcess,
int32 routingId)
{
AssertInvariants();
if (SharedMemory::TYPE_BASIC == mSegment->Type()) {
SharedMemoryBasic* seg = static_cast<SharedMemoryBasic*>(mSegment);
SharedMemoryBasic::Handle handle;
if (!seg->ShareToProcess(aProcess, &handle))
return 0;
return new ShmemCreated(routingId, mId, mSize, handle);
}
#ifdef MOZ_HAVE_SHAREDMEMORYSYSV
else if (SharedMemory::TYPE_SYSV == mSegment->Type()) {
SharedMemorySysV* seg = static_cast<SharedMemorySysV*>(mSegment);
return new ShmemCreated(routingId, mId, mSize, seg->GetHandle());
}
#endif
else {
NS_RUNTIMEABORT("unknown shmem type (here?!)");
}
return 0;
}
IPC::Message*
Shmem::ShareTo(IHadBetterBeIPDLCodeCallingThis_OtherwiseIAmADoodyhead,
base::ProcessHandle aProcess,
int32_t routingId)
{
AssertInvariants();
// kInvalidProcessHandle is used to indicate that it's the same process.
if (aProcess == kInvalidProcessHandle) {
aProcess = base::GetCurrentProcessHandle();
}
if (SharedMemory::TYPE_BASIC == mSegment->Type()) {
SharedMemoryBasic* seg = static_cast<SharedMemoryBasic*>(mSegment);
SharedMemoryBasic::Handle handle;
if (!seg->ShareToProcess(aProcess, &handle))
return nullptr;
return new ShmemCreated(routingId, mId, mSize, handle);
}
#ifdef MOZ_HAVE_SHAREDMEMORYSYSV
else if (SharedMemory::TYPE_SYSV == mSegment->Type()) {
SharedMemorySysV* seg = static_cast<SharedMemorySysV*>(mSegment);
return new ShmemCreated(routingId, mId, mSize, seg->GetHandle());
}
#endif
else {
MOZ_ASSERT(false, "unknown shmem type (here?!)");
return nullptr;
}
return nullptr;
}
int
Shmem::GetSysVID() const
{
#ifdef MOZ_HAVE_SHAREDMEMORYSYSV
AssertInvariants();
if (mSegment->Type() != SharedMemory::TYPE_SYSV)
NS_RUNTIMEABORT("Can't call GetSysVID() on a non-SysV Shmem!");
SharedMemorySysV* seg = static_cast<SharedMemorySysV*>(mSegment);
return seg->GetHandle();
#else
NS_RUNTIMEABORT("Can't call GetSysVID() with no support for SysV shared memory!");
return -1; // not reached
#endif
}
