0f02309e4b
Automated conversion using the untry tool [1] and the following command: ``` $ find -name '*.rs' -type f | xargs untry ``` at the root of the Rust repo. [1]: https://github.com/japaric/untry
55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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use prelude::v1::*;
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use os::windows::prelude::*;
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use ffi::{CString, OsStr};
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use io;
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use sys::c;
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pub struct DynamicLibrary {
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handle: c::HMODULE,
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}
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impl DynamicLibrary {
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pub fn open(filename: &str) -> io::Result<DynamicLibrary> {
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let filename = OsStr::new(filename)
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.encode_wide()
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.chain(Some(0))
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.collect::<Vec<_>>();
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let result = unsafe {
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c::LoadLibraryW(filename.as_ptr())
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};
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if result.is_null() {
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Err(io::Error::last_os_error())
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} else {
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Ok(DynamicLibrary { handle: result })
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}
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}
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pub fn symbol(&self, symbol: &str) -> io::Result<usize> {
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let symbol = CString::new(symbol)?;
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unsafe {
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match c::GetProcAddress(self.handle, symbol.as_ptr()) as usize {
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0 => Err(io::Error::last_os_error()),
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n => Ok(n),
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}
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}
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}
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}
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impl Drop for DynamicLibrary {
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fn drop(&mut self) {
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unsafe {
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c::FreeLibrary(self.handle);
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}
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}
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}
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