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use libc;
use ArchiveRef;
use std::raw;
use std::mem;
pub struct ArchiveRO {
ptr: ArchiveRef,
}
impl ArchiveRO {
pub fn open(dst: &Path) -> Option<ArchiveRO> {
unsafe {
let ar = dst.with_c_str(|dst| {
::LLVMRustOpenArchive(dst)
});
if ar.is_null() {
None
} else {
Some(ArchiveRO { ptr: ar })
}
}
}
pub fn read<'a>(&'a self, file: &str) -> Option<&'a [u8]> {
unsafe {
let mut size = 0 as libc::size_t;
let ptr = file.with_c_str(|file| {
::LLVMRustArchiveReadSection(self.ptr, file, &mut size)
});
if ptr.is_null() {
None
} else {
Some(mem::transmute(raw::Slice {
data: ptr,
len: size as uint,
}))
}
}
}
}
impl Drop for ArchiveRO {
fn drop(&mut self) {
unsafe {
::LLVMRustDestroyArchive(self.ptr);
}
}
}