do_op.cc

#include "caffe2/operators/do_op.h"

namespace caffe2 {

REGISTER_CPU_OPERATOR(Do, DoOp<CPUContext>);

OPERATOR_SCHEMA(Do)
    .NumInputs(1, INT_MAX)
    .NumOutputs(1, INT_MAX)
    .SetDoc(R"DOC(
'Do' control operator, executes a subnet in a separate workspace.
Last blobs in the input and output lists should be the same blob created with
CreateScope op. Arguments 'inner_blobs' and 'outer_blobs_idx' provide a mapping
between selected inner blob names and corresponding outer blob indices.
    )DOC")
    .Arg("net", "Subnet with blob bindings")
    .Arg(
        "inner_blobs",
        "List of inner net blob names to bind to outer workspace")
    .Arg(
        "outer_blobs_idx",
        "Indices of corresponding outer workspace blobs, "
        "in order: operator inputs, operator outputs (skipping workspace blobs)")
    .Arg(
        "saved_fwd_blobs",
        "List of blobs from the forward Do operator workspace needed "
        "in backward pass, used in gradient Do operator")
    .Arg(
        "reuse_workspace",
        "Whether to reuse workspace or create a new one in a given scope")
    .AllowInplace([](int in, int out) -> bool { return true; });

} // namespace caffe2