Function CallLoadTargetBuildFile

tools/gyp/pylib/gyp/input.py:500–552

Wrapper around LoadTargetBuildFile for parallel processing. This wrapper is used when LoadTargetBuildFile is executed in a worker process.

(
    global_flags,
    build_file_path,
    variables,
    includes,
    depth,
    check,
    generator_input_info,
)

def CallLoadTargetBuildFile(
    global_flags,
    build_file_path,
    variables,
    includes,
    depth,
    check,
    generator_input_info,
):
    """Wrapper around LoadTargetBuildFile for parallel processing.

    This wrapper is used when LoadTargetBuildFile is executed in
    a worker process.
    """

    try:
        signal.signal(signal.SIGINT, signal.SIG_IGN)

        # Apply globals so that the worker process behaves the same.
        for key, value in global_flags.items():
            globals()[key] = value

        SetGeneratorGlobals(generator_input_info)
        result = LoadTargetBuildFile(
            build_file_path,
            per_process_data,
            per_process_aux_data,
            variables,
            includes,
            depth,
            check,
            False,
        )
        if not result:
            return result

        (build_file_path, dependencies) = result

        # We can safely pop the build_file_data from per_process_data because it
        # will never be referenced by this process again, so we don't need to keep
        # it in the cache.
        build_file_data = per_process_data.pop(build_file_path)

        # This gets serialized and sent back to the main process via a pipe.
        # It's handled in LoadTargetBuildFileCallback.
        return (build_file_path, build_file_data, dependencies)
    except GypError as e:
        sys.stderr.write("gyp: %s\n" % e)
        return None
    except Exception as e:
        print("Exception:", e, file=sys.stderr)
        print(traceback.format_exc(), file=sys.stderr)
        return None


class ParallelProcessingError(Exception):