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from typing import Optional

from m5.objects import Addr
from ...utils.override import overrides

from .abstract_generator import AbstractGenerator
from .gups_generator_core import GUPSGeneratorCore


class GUPSGenerator(AbstractGenerator):
    def __init__(
        self,
        start_addr: Addr,
        mem_size: str,
        update_limit: int = 0,
        clk_freq: Optional[str] = None,
    ):
        """The GUPSGenerator class
        This class defines the interface for a single core GUPSGenerator, this
        generator could be used in place of a processor. For multicore versions
        of this generator look at GUPSGeneraorEP (EP stands for embarrassingly
        parallel) and GUPSGeneratorPAR (PAR stands for parallel). The two
        variants are specified by the HPCC benchmark.

        :param start_addr: The start address for allocating the update table.
        :param mem_size: The size of memory to allocate for the update table.
        Should be a power of 2.
        :param update_limit: The number of updates to do before terminating
        simulation. Pass zero to run the benchmark to completion (The amount of
        time it takes to simulate depends on )
        """
        super().__init__(
            cores=[
                GUPSGeneratorCore(
                    start_addr=start_addr,
                    mem_size=mem_size,
                    update_limit=update_limit,
                    clk_freq=clk_freq,
                )
            ]
        )

    @overrides(AbstractGenerator)
    def start_traffic(self):
        """
        Since GUPSGeneratorCore does not need a call to start_traffic to
        start generation. This function is just pass.
        """
        pass