python/tvm/support.py

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"""Support infra of TVM."""
import ctypes
import tvm._ffi
from .runtime.module import Module
from . import get_global_func


def libinfo():
    """Returns a dictionary containing compile-time info, including cmake flags and git commit hash

    Returns
    -------
    info: Dict[str, str]
        The dictionary of compile-time info.
    """
    return {k: v for k, v in GetLibInfo().items()}  # pylint: disable=unnecessary-comprehension


class FrontendTestModule(Module):
    """A tvm.runtime.Module whose member functions are PackedFunc."""

    def __init__(self, entry_name=None):
        underlying_mod = get_global_func("testing.FrontendTestModule")()
        handle = underlying_mod.handle

        # Set handle to NULL to avoid cleanup in c++ runtime, transferring ownership.
        # Both cython and ctypes FFI use c_void_p, so this is safe to assign here.
        underlying_mod.handle = ctypes.c_void_p(0)

        super(FrontendTestModule, self).__init__(handle)
        if entry_name is not None:
            self.entry_name = entry_name

    def add_function(self, name, func):
        self.get_function("__add_function")(name, func)

    def __setitem__(self, key, value):
        self.add_function(key, value)


tvm._ffi._init_api("support", __name__)