guiddef.rs - mozsearch

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// Licensed under the Apache License, Version 2.0

// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license

// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.

// All files in the project carrying such notice may not be copied, modified, or distributed

// except according to those terms.

//! GUID definition

use ctypes::{c_uchar, c_ulong, c_ushort};

STRUCT!{#[debug] struct GUID {

    Data1: c_ulong,

    Data2: c_ushort,

    Data3: c_ushort,

    Data4: [c_uchar; 8],

}}

pub type LPGUID = *mut GUID;

pub type LPCGUID = *const GUID;

pub type IID = GUID;

pub type LPIID = *mut IID;

pub use self::IsEqualGUID as IsEqualIID;

pub type CLSID = GUID;

pub type LPCLSID = *mut CLSID;

pub use self::IsEqualGUID as IsEqualCLSID;

pub type FMTID = GUID;

pub type LPFMTID = *mut FMTID;

pub use self::IsEqualGUID as IsEqualFMTID;

pub type REFGUID = *const GUID;

pub type REFIID = *const IID;

pub type REFCLSID = *const IID;

pub type REFFMTID = *const IID;

DEFINE_GUID!{IID_NULL,

    0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}

#[inline]

pub fn IsEqualGUID(g1: &GUID, g2: &GUID) -> bool {

    let a = unsafe { &*(g1 as *const _ as *const [u32; 4]) };

    let b = unsafe { &*(g2 as *const _ as *const [u32; 4]) };

    a[0] == b[0] && a[1] == b[1] && a[2] == b[2] && a[3] == b[3]