#     Copyright 2025, Kay Hayen, mailto:kay.hayen@gmail.com find license text at end of file


# nuitka-project: --mode=standalone

import ctypes
import os
import sys

if os.name == "nt":
    # adapted from http://code.activestate.com/recipes/578513
    from ctypes import wintypes

    # Lets allow this to match Windows API it reflects,
    # pylint: disable=invalid-name
    class PROCESS_MEMORY_COUNTERS_EX(ctypes.Structure):
        _fields_ = [
            ("cb", wintypes.DWORD),
            ("PageFaultCount", wintypes.DWORD),
            ("PeakWorkingSetSize", ctypes.c_size_t),
            ("WorkingSetSize", ctypes.c_size_t),
            ("QuotaPeakPagedPoolUsage", ctypes.c_size_t),
            ("QuotaPagedPoolUsage", ctypes.c_size_t),
            ("QuotaPeakNonPagedPoolUsage", ctypes.c_size_t),
            ("QuotaNonPagedPoolUsage", ctypes.c_size_t),
            ("PagefileUsage", ctypes.c_size_t),
            ("PeakPagefileUsage", ctypes.c_size_t),
            ("PrivateUsage", ctypes.c_size_t),
        ]

    GetProcessMemoryInfo = ctypes.windll.psapi.GetProcessMemoryInfo
    GetProcessMemoryInfo.argtypes = (
        wintypes.HANDLE,
        ctypes.POINTER(PROCESS_MEMORY_COUNTERS_EX),
        wintypes.DWORD,
    )
    GetProcessMemoryInfo.restype = wintypes.BOOL

    counters = PROCESS_MEMORY_COUNTERS_EX()
    rv = GetProcessMemoryInfo(
        ctypes.windll.kernel32.GetCurrentProcess(),
        ctypes.byref(counters),
        ctypes.sizeof(counters),
    )

    if not rv:
        raise ctypes.WinError()

    print("OK.")
elif sys.platform == "linux":
    libc = ctypes.CDLL("libc.so.6")

    printf = libc.printf
    # printf.argtypes = (ctypes.c_char_p, ctypes.c_char_p)
    printf(b"Hello, %s\n", b"World!\0")

    print("OK.")
elif sys.platform == "darwin":
    libc = ctypes.CDLL("libc.dylib")

    puts = libc.puts
    puts(b"Hello, World\0")

    print("OK.")
else:
    print("Not doing much for %s" % sys.platform)

#     Python test originally created or extracted from other peoples work. The
#     parts from me are licensed as below. It is at least Free Software where
#     it's copied from other people. In these cases, that will normally be
#     indicated.
#
#     Licensed under the Apache License, Version 2.0 (the "License");
#     you may not use this file except in compliance with the License.
#     You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#     Unless required by applicable law or agreed to in writing, software
#     distributed under the License is distributed on an "AS IS" BASIS,
#     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#     See the License for the specific language governing permissions and
#     limitations under the License.
