Hi. Now I trying to write a large struct ( 2GB aprox. ) and then read only an attribute of it. I write it doing something like:
object_capnp.Object(all_the_data).write( open(file, "w+b") )
Then, when the struct is on the file, I am trying to read it:
If I read it doing object_capnp.Object().read(file) all the file is loaded on memory.
If I read it using the random access i do:
message = capnp._StreamFdMessageReader(file)
object = message.get_root( object_capnp.Object )
But then the next error is raised:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "capnp/lib/capnp.pyx", line 3746, in capnp.lib.capnp._MessageReader.get_root
capnp.lib.capnp.KjException: capnp/layout.c++:2165: failed: expected ref->kind() == WirePointer::STRUCT; Message contains non-struct pointer where struct pointer was expected.
Whats the problem with that? I'm reading these docs:
Thanks for the help.