# SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# SPDX-License-Identifier: LicenseRef-NVIDIA-SOFTWARE-LICENSE
#
# This code was automatically generated across versions from 12.0.1 to 12.9.1. Do not modify it directly.

from libc.stdint cimport intptr_t

import threading
from .utils import FunctionNotFoundError, NotSupportedError

from cuda.pathfinder import load_nvidia_dynamic_lib

from libc.stddef cimport wchar_t
from libc.stdint cimport uintptr_t
from cpython cimport PyUnicode_AsWideCharString, PyMem_Free

from .utils import NotSupportedError

cdef extern from "windows.h" nogil:
    ctypedef void* HMODULE
    ctypedef void* HANDLE
    ctypedef void* FARPROC
    ctypedef unsigned long DWORD
    ctypedef const wchar_t *LPCWSTR
    ctypedef const char *LPCSTR

    cdef DWORD LOAD_LIBRARY_SEARCH_SYSTEM32 = 0x00000800
    cdef DWORD LOAD_LIBRARY_SEARCH_DEFAULT_DIRS = 0x00001000
    cdef DWORD LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR = 0x00000100

    HMODULE _LoadLibraryExW "LoadLibraryExW"(
        LPCWSTR lpLibFileName,
        HANDLE hFile,
        DWORD dwFlags
    )

    FARPROC _GetProcAddress "GetProcAddress"(HMODULE hModule, LPCSTR lpProcName)

cdef inline uintptr_t LoadLibraryExW(str path, HANDLE hFile, DWORD dwFlags):
    cdef uintptr_t result
    cdef wchar_t* wpath = PyUnicode_AsWideCharString(path, NULL)
    with nogil:
        result = <uintptr_t>_LoadLibraryExW(
            wpath,
            hFile,
            dwFlags
        )
    PyMem_Free(wpath)
    return result

cdef inline void *GetProcAddress(uintptr_t hModule, const char* lpProcName) nogil:
    return _GetProcAddress(<HMODULE>hModule, lpProcName)

cdef int get_cuda_version():
    cdef int err, driver_ver = 0

    # Load driver to check version
    handle = LoadLibraryExW("nvcuda.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32)
    if handle == 0:
        raise NotSupportedError('CUDA driver is not found')
    cuDriverGetVersion = GetProcAddress(handle, 'cuDriverGetVersion')
    if cuDriverGetVersion == NULL:
        raise RuntimeError('something went wrong')
    err = (<int (*)(int*) noexcept nogil>cuDriverGetVersion)(&driver_ver)
    if err != 0:
        raise RuntimeError('something went wrong')

    return driver_ver



###############################################################################
# Wrapper init
###############################################################################

cdef object __symbol_lock = threading.Lock()
cdef bint __py_nvjitlink_init = False

cdef void* __nvJitLinkCreate = NULL
cdef void* __nvJitLinkDestroy = NULL
cdef void* __nvJitLinkAddData = NULL
cdef void* __nvJitLinkAddFile = NULL
cdef void* __nvJitLinkComplete = NULL
cdef void* __nvJitLinkGetLinkedCubinSize = NULL
cdef void* __nvJitLinkGetLinkedCubin = NULL
cdef void* __nvJitLinkGetLinkedPtxSize = NULL
cdef void* __nvJitLinkGetLinkedPtx = NULL
cdef void* __nvJitLinkGetErrorLogSize = NULL
cdef void* __nvJitLinkGetErrorLog = NULL
cdef void* __nvJitLinkGetInfoLogSize = NULL
cdef void* __nvJitLinkGetInfoLog = NULL
cdef void* __nvJitLinkVersion = NULL


cdef int __check_or_init_nvjitlink() except -1 nogil:
    global __py_nvjitlink_init

    with gil, __symbol_lock:
        # Load library
        handle = load_nvidia_dynamic_lib("nvJitLink")._handle_uint

        # Load function
        global __nvJitLinkCreate
        __nvJitLinkCreate = GetProcAddress(handle, 'nvJitLinkCreate')

        global __nvJitLinkDestroy
        __nvJitLinkDestroy = GetProcAddress(handle, 'nvJitLinkDestroy')

        global __nvJitLinkAddData
        __nvJitLinkAddData = GetProcAddress(handle, 'nvJitLinkAddData')

        global __nvJitLinkAddFile
        __nvJitLinkAddFile = GetProcAddress(handle, 'nvJitLinkAddFile')

        global __nvJitLinkComplete
        __nvJitLinkComplete = GetProcAddress(handle, 'nvJitLinkComplete')

        global __nvJitLinkGetLinkedCubinSize
        __nvJitLinkGetLinkedCubinSize = GetProcAddress(handle, 'nvJitLinkGetLinkedCubinSize')

        global __nvJitLinkGetLinkedCubin
        __nvJitLinkGetLinkedCubin = GetProcAddress(handle, 'nvJitLinkGetLinkedCubin')

        global __nvJitLinkGetLinkedPtxSize
        __nvJitLinkGetLinkedPtxSize = GetProcAddress(handle, 'nvJitLinkGetLinkedPtxSize')

        global __nvJitLinkGetLinkedPtx
        __nvJitLinkGetLinkedPtx = GetProcAddress(handle, 'nvJitLinkGetLinkedPtx')

        global __nvJitLinkGetErrorLogSize
        __nvJitLinkGetErrorLogSize = GetProcAddress(handle, 'nvJitLinkGetErrorLogSize')

        global __nvJitLinkGetErrorLog
        __nvJitLinkGetErrorLog = GetProcAddress(handle, 'nvJitLinkGetErrorLog')

        global __nvJitLinkGetInfoLogSize
        __nvJitLinkGetInfoLogSize = GetProcAddress(handle, 'nvJitLinkGetInfoLogSize')

        global __nvJitLinkGetInfoLog
        __nvJitLinkGetInfoLog = GetProcAddress(handle, 'nvJitLinkGetInfoLog')

        global __nvJitLinkVersion
        __nvJitLinkVersion = GetProcAddress(handle, 'nvJitLinkVersion')

        __py_nvjitlink_init = True
        return 0


cdef inline int _check_or_init_nvjitlink() except -1 nogil:
    if __py_nvjitlink_init:
        return 0

    return __check_or_init_nvjitlink()


cdef dict func_ptrs = None


cpdef dict _inspect_function_pointers():
    global func_ptrs
    if func_ptrs is not None:
        return func_ptrs

    _check_or_init_nvjitlink()
    cdef dict data = {}

    global __nvJitLinkCreate
    data["__nvJitLinkCreate"] = <intptr_t>__nvJitLinkCreate

    global __nvJitLinkDestroy
    data["__nvJitLinkDestroy"] = <intptr_t>__nvJitLinkDestroy

    global __nvJitLinkAddData
    data["__nvJitLinkAddData"] = <intptr_t>__nvJitLinkAddData

    global __nvJitLinkAddFile
    data["__nvJitLinkAddFile"] = <intptr_t>__nvJitLinkAddFile

    global __nvJitLinkComplete
    data["__nvJitLinkComplete"] = <intptr_t>__nvJitLinkComplete

    global __nvJitLinkGetLinkedCubinSize
    data["__nvJitLinkGetLinkedCubinSize"] = <intptr_t>__nvJitLinkGetLinkedCubinSize

    global __nvJitLinkGetLinkedCubin
    data["__nvJitLinkGetLinkedCubin"] = <intptr_t>__nvJitLinkGetLinkedCubin

    global __nvJitLinkGetLinkedPtxSize
    data["__nvJitLinkGetLinkedPtxSize"] = <intptr_t>__nvJitLinkGetLinkedPtxSize

    global __nvJitLinkGetLinkedPtx
    data["__nvJitLinkGetLinkedPtx"] = <intptr_t>__nvJitLinkGetLinkedPtx

    global __nvJitLinkGetErrorLogSize
    data["__nvJitLinkGetErrorLogSize"] = <intptr_t>__nvJitLinkGetErrorLogSize

    global __nvJitLinkGetErrorLog
    data["__nvJitLinkGetErrorLog"] = <intptr_t>__nvJitLinkGetErrorLog

    global __nvJitLinkGetInfoLogSize
    data["__nvJitLinkGetInfoLogSize"] = <intptr_t>__nvJitLinkGetInfoLogSize

    global __nvJitLinkGetInfoLog
    data["__nvJitLinkGetInfoLog"] = <intptr_t>__nvJitLinkGetInfoLog

    global __nvJitLinkVersion
    data["__nvJitLinkVersion"] = <intptr_t>__nvJitLinkVersion

    func_ptrs = data
    return data


cpdef _inspect_function_pointer(str name):
    global func_ptrs
    if func_ptrs is None:
        func_ptrs = _inspect_function_pointers()
    return func_ptrs[name]


###############################################################################
# Wrapper functions
###############################################################################

cdef nvJitLinkResult _nvJitLinkCreate(nvJitLinkHandle* handle, uint32_t numOptions, const char** options) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkCreate
    _check_or_init_nvjitlink()
    if __nvJitLinkCreate == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkCreate is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle*, uint32_t, const char**) noexcept nogil>__nvJitLinkCreate)(
        handle, numOptions, options)


cdef nvJitLinkResult _nvJitLinkDestroy(nvJitLinkHandle* handle) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkDestroy
    _check_or_init_nvjitlink()
    if __nvJitLinkDestroy == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkDestroy is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle*) noexcept nogil>__nvJitLinkDestroy)(
        handle)


cdef nvJitLinkResult _nvJitLinkAddData(nvJitLinkHandle handle, nvJitLinkInputType inputType, const void* data, size_t size, const char* name) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkAddData
    _check_or_init_nvjitlink()
    if __nvJitLinkAddData == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkAddData is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, nvJitLinkInputType, const void*, size_t, const char*) noexcept nogil>__nvJitLinkAddData)(
        handle, inputType, data, size, name)


cdef nvJitLinkResult _nvJitLinkAddFile(nvJitLinkHandle handle, nvJitLinkInputType inputType, const char* fileName) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkAddFile
    _check_or_init_nvjitlink()
    if __nvJitLinkAddFile == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkAddFile is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, nvJitLinkInputType, const char*) noexcept nogil>__nvJitLinkAddFile)(
        handle, inputType, fileName)


cdef nvJitLinkResult _nvJitLinkComplete(nvJitLinkHandle handle) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkComplete
    _check_or_init_nvjitlink()
    if __nvJitLinkComplete == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkComplete is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle) noexcept nogil>__nvJitLinkComplete)(
        handle)


cdef nvJitLinkResult _nvJitLinkGetLinkedCubinSize(nvJitLinkHandle handle, size_t* size) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetLinkedCubinSize
    _check_or_init_nvjitlink()
    if __nvJitLinkGetLinkedCubinSize == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetLinkedCubinSize is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, size_t*) noexcept nogil>__nvJitLinkGetLinkedCubinSize)(
        handle, size)


cdef nvJitLinkResult _nvJitLinkGetLinkedCubin(nvJitLinkHandle handle, void* cubin) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetLinkedCubin
    _check_or_init_nvjitlink()
    if __nvJitLinkGetLinkedCubin == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetLinkedCubin is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, void*) noexcept nogil>__nvJitLinkGetLinkedCubin)(
        handle, cubin)


cdef nvJitLinkResult _nvJitLinkGetLinkedPtxSize(nvJitLinkHandle handle, size_t* size) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetLinkedPtxSize
    _check_or_init_nvjitlink()
    if __nvJitLinkGetLinkedPtxSize == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetLinkedPtxSize is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, size_t*) noexcept nogil>__nvJitLinkGetLinkedPtxSize)(
        handle, size)


cdef nvJitLinkResult _nvJitLinkGetLinkedPtx(nvJitLinkHandle handle, char* ptx) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetLinkedPtx
    _check_or_init_nvjitlink()
    if __nvJitLinkGetLinkedPtx == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetLinkedPtx is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, char*) noexcept nogil>__nvJitLinkGetLinkedPtx)(
        handle, ptx)


cdef nvJitLinkResult _nvJitLinkGetErrorLogSize(nvJitLinkHandle handle, size_t* size) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetErrorLogSize
    _check_or_init_nvjitlink()
    if __nvJitLinkGetErrorLogSize == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetErrorLogSize is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, size_t*) noexcept nogil>__nvJitLinkGetErrorLogSize)(
        handle, size)


cdef nvJitLinkResult _nvJitLinkGetErrorLog(nvJitLinkHandle handle, char* log) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetErrorLog
    _check_or_init_nvjitlink()
    if __nvJitLinkGetErrorLog == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetErrorLog is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, char*) noexcept nogil>__nvJitLinkGetErrorLog)(
        handle, log)


cdef nvJitLinkResult _nvJitLinkGetInfoLogSize(nvJitLinkHandle handle, size_t* size) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetInfoLogSize
    _check_or_init_nvjitlink()
    if __nvJitLinkGetInfoLogSize == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetInfoLogSize is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, size_t*) noexcept nogil>__nvJitLinkGetInfoLogSize)(
        handle, size)


cdef nvJitLinkResult _nvJitLinkGetInfoLog(nvJitLinkHandle handle, char* log) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkGetInfoLog
    _check_or_init_nvjitlink()
    if __nvJitLinkGetInfoLog == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkGetInfoLog is not found")
    return (<nvJitLinkResult (*)(nvJitLinkHandle, char*) noexcept nogil>__nvJitLinkGetInfoLog)(
        handle, log)


cdef nvJitLinkResult _nvJitLinkVersion(unsigned int* major, unsigned int* minor) except?_NVJITLINKRESULT_INTERNAL_LOADING_ERROR nogil:
    global __nvJitLinkVersion
    _check_or_init_nvjitlink()
    if __nvJitLinkVersion == NULL:
        with gil:
            raise FunctionNotFoundError("function nvJitLinkVersion is not found")
    return (<nvJitLinkResult (*)(unsigned int*, unsigned int*) noexcept nogil>__nvJitLinkVersion)(
        major, minor)