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use base::{CFAllocatorRef, CFIndex, CFIndexConvertible, CFRelease, CFRetain};
use base::{CFTypeID, CFTypeRef, TCFType, kCFAllocatorDefault};
use std::mem;
#[repr(C)]
struct __CFData;
pub type CFDataRef = *const __CFData;
pub struct CFData {
obj: CFDataRef,
}
impl Drop for CFData {
fn drop(&mut self) {
unsafe {
CFRelease(self.as_CFTypeRef())
}
}
}
impl TCFType<CFDataRef> for CFData {
#[inline]
fn as_concrete_TypeRef(&self) -> CFDataRef {
self.obj
}
#[inline]
unsafe fn wrap_under_get_rule(reference: CFDataRef) -> CFData {
let reference: CFDataRef = mem::transmute(CFRetain(mem::transmute(reference)));
TCFType::wrap_under_create_rule(reference)
}
#[inline]
fn as_CFTypeRef(&self) -> CFTypeRef {
unsafe {
mem::transmute(self.as_concrete_TypeRef())
}
}
unsafe fn wrap_under_create_rule(obj: CFDataRef) -> CFData {
CFData {
obj: obj,
}
}
#[inline]
fn type_id() -> CFTypeID {
unsafe {
CFDataGetTypeID()
}
}
}
impl CFData {
pub fn from_buffer(buffer: &[u8]) -> CFData {
unsafe {
let data_ref = CFDataCreate(kCFAllocatorDefault,
buffer.as_ptr(),
buffer.len().to_CFIndex());
TCFType::wrap_under_create_rule(data_ref)
}
}
#[inline]
pub fn bytes<'a>(&'a self) -> &'a [u8] {
unsafe {
mem::transmute((CFDataGetBytePtr(self.obj), self.len() as usize))
}
}
#[inline]
pub fn len(&self) -> CFIndex {
unsafe {
CFDataGetLength(self.obj)
}
}
}
#[link(name = "CoreFoundation", kind = "framework")]
extern {
fn CFDataCreate(allocator: CFAllocatorRef,
bytes: *const u8, length: CFIndex) -> CFDataRef;
fn CFDataGetBytePtr(theData: CFDataRef) -> *const u8;
fn CFDataGetLength(theData: CFDataRef) -> CFIndex;
fn CFDataGetTypeID() -> CFTypeID;
}