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//! This module roughly corresponds to `mach/exc.h`.

#![allow(dead_code, non_snake_case)]

use core::ffi::{c_uint, c_int};

use crate::exception_types::{exception_data_t, exception_type_t};
use crate::kern_return::kern_return_t;
use crate::message::{
    mach_msg_body_t,
    mach_msg_header_t,
    mach_msg_port_descriptor_t,
    mach_msg_type_number_t,
};
use crate::ndr::NDR_record_t;
use crate::port::mach_port_t;
use crate::thread_status::thread_state_t;
use crate::vm_types::integer_t;

pub const exc_MSG_COUNT: c_uint = 3;

extern "C" {
    pub fn exception_raise(
        exception_port: mach_port_t,
        thread:         mach_port_t,
        task:           mach_port_t,
        exception:      exception_type_t,
        code:           exception_data_t,
        codeCnt:        mach_msg_type_number_t,
    ) -> kern_return_t;

    pub fn exception_raise_state(
        exception_port: mach_port_t,
        exception:      exception_type_t,
        code:           exception_data_t,
        codeCnt:        mach_msg_type_number_t,
        flavor:         *mut c_int,
        old_state:      thread_state_t,
        old_stateCnt:   mach_msg_type_number_t,
        new_state:      thread_state_t,
        new_stateCnt:   *mut mach_msg_type_number_t,
    ) -> kern_return_t;

    pub fn exception_raise_state_identity(
        exception_port: mach_port_t,
        thread:         mach_port_t,
        task:           mach_port_t,
        exception:      exception_type_t,
        code:           exception_data_t,
        codeCnt:        mach_msg_type_number_t,
        flavor:         *mut c_int,
        old_state:      thread_state_t,
        old_stateCnt:   mach_msg_type_number_t,
        new_state:      thread_state_t,
        new_stateCnt:   *mut mach_msg_type_number_t,
    ) -> kern_return_t;
}

#[repr(C)]
#[derive(Copy, Clone, Debug)]
pub struct __Request__exception_raise_t {
    pub Head:      mach_msg_header_t,

    /* start of the kernel processed data */
    pub msgh_body: mach_msg_body_t,
    pub thread:    mach_msg_port_descriptor_t,
    pub task:      mach_msg_port_descriptor_t,
    /* end of the kernel processed data */

    pub NDR:       NDR_record_t,
    pub exception: exception_type_t,
    pub codeCnt:   mach_msg_type_number_t,
    pub code:      [integer_t; 2],
}

#[repr(C)]
#[derive(Copy, Clone, Debug)]
pub struct __Reply__exception_raise_t {
    pub Head:    mach_msg_header_t,
    pub NDR:     NDR_record_t,
    pub RetCode: kern_return_t,
}