I am seeing the following message on Linux upon calling
StreamFdMessageReader on the receiving end of a connection. I did have this
working until I put messages inside a union as a wrapper.
Exception in setting up sender: capnp/layout.c++:2438: failed: expected
ref-kind() == WirePointer::LIST [0 == 1]; Message contains non-list pointer
where text was expected.
I'm guessing something is wrong on the sender as the receiving seems to
only report the problem as soon as it reads from the fd. I am mainly
confused about the WirePointer::LIST [0 == 1] part. Can anyone add
clarification?
struct MyObjA {
fieldA @0 :SomeType;
fieldB @1 :UInt16;
fieldC @2 :Text;
}
struct MyObjB {
fieldA @0 :SomeType;
fieldB @1 :UInt16;
fieldC @2 :Text;
}
struct MyWrapper {
union {
objA @0 :MyObjA;
objB @1 :MyObjB;
}
}
auto w = builder->initRoot<MyWrapper>();
auto obj = w->initMyObjA();
obj.getMyObjA.setFieldA("a");
obj.getMyObjA.setFieldB("b");
writeMessageToFd(fd, builder);
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