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use std::{ffi::CStr, io};
use io_trait::{AsyncFile, AsyncIo};
use crate::async_traits::{File, Operation, Overlapped};
#[cfg(target_family = "windows")]
use crate::windows::*;
#[cfg(target_family = "unix")]
use crate::unix::*;
struct AFile {
file: File<Os>,
overlapped: Overlapped<Os>,
}
impl AsyncFile for AFile {
type Operation<'a> = Operation<'a, Os>;
fn read<'a>(
&'a mut self,
offset: u64,
buffer: &'a mut [u8],
) -> io::Result<Self::Operation<'a>> {
self.file.read(&mut self.overlapped, offset, buffer)
}
fn write<'a>(&'a mut self, offset: u64, buffer: &'a [u8]) -> io::Result<Self::Operation<'a>> {
self.file.write(&mut self.overlapped, offset, buffer)
}
}
struct AIo();
impl AsyncIo for AIo {
type File = AFile;
fn create(&self, path: &CStr) -> io::Result<Self::File> {
Ok(AFile {
file: File::create(path)?,
overlapped: Overlapped::default(),
})
}
fn open(&self, path: &CStr) -> io::Result<Self::File> {
Ok(AFile {
file: File::open(path)?,
overlapped: Default::default(),
})
}
}
#[cfg(test)]
mod test {
use std::{ffi::CString, thread::yield_now};
use super::AIo;
use io_trait::{AsyncFile, AsyncIo, AsyncOperation, OperationResult};
#[test]
fn test() {
let aio = AIo();
//
for _ in 0..1000 {
let x: CString = CString::new("_test.txt").unwrap();
let origin = b"Hello World!";
{
let mut handle = aio.create(&x).unwrap();
let mut operation = handle.write(0, origin).unwrap();
loop {
match operation.get_result() {
OperationResult::Ok(bytes_written) => {
if bytes_written != origin.len() {
panic!();
}
break;
}
OperationResult::Pending => {
yield_now();
}
OperationResult::Err(e) => {
panic!("e: {}", e);
}
}
}
// let result = operation.get_result(true).unwrap();
// assert_eq!(result, 12);
}
{
let mut handle = aio.open(&x).unwrap();
let mut buffer = [0u8; 1024];
{
let mut operation = handle.read(0, &mut buffer).unwrap();
loop {
match operation.get_result() {
OperationResult::Ok(bytes_written) => {
if bytes_written != origin.len() {
panic!();
}
break;
}
OperationResult::Pending => {
yield_now();
}
OperationResult::Err(e) => {
panic!("e: {}", e);
}
}
}
// let result = operation.get_result(true).unwrap();
// assert_eq!(result, 12);
}
assert_eq!(&buffer[..12], b"Hello World!");
}
}
}
#[test]
fn test2() {
let aio = AIo();
let x: CString = CString::new("_test2.txt").unwrap();
let origin = "Hello, world!";
for _ in 0..1000 {
{
let mut file = aio.create(&x).unwrap();
let mut operation = file.write(0, origin.as_bytes()).unwrap();
loop {
match operation.get_result() {
OperationResult::Ok(bytes_written) => {
if bytes_written != origin.len() {
panic!();
}
break;
}
OperationResult::Pending => {
yield_now();
}
OperationResult::Err(e) => {
panic!("e: {}", e);
}
}
}
}
}
for _ in 0..1000 {
{
let mut file = aio.open(&x).unwrap();
let mut buffer = [0u8; 1024];
let len;
{
let mut operation = file.read(0, &mut buffer).unwrap();
loop {
match operation.get_result() {
OperationResult::Ok(bytes_read) => {
len = bytes_read;
break;
}
OperationResult::Pending => {
yield_now();
}
OperationResult::Err(e) => {
panic!("e: {}", e);
}
}
}
}
assert_eq!(&buffer[..len], origin.as_bytes());
}
}
}
#[test]
fn test3() {
let aio = AIo();
let x: CString = CString::new("_big_test.txt").unwrap();
let origin = "Hello, world!".repeat(100);
{
let mut file = aio.create(&x).unwrap();
let mut operation = file.write(0, origin.as_bytes()).unwrap();
loop {
match operation.get_result() {
OperationResult::Ok(bytes_written) => {
if bytes_written != origin.len() {
panic!();
}
break;
}
OperationResult::Pending => {
yield_now();
}
OperationResult::Err(e) => {
panic!("e: {}", e);
}
}
}
}
{
let mut file = aio.open(&x).unwrap();
let mut v = Vec::default();
loop {
let mut buffer = [0u8; 1024];
let len;
{
let mut operation = file.read(v.len() as u64, &mut buffer).unwrap();
loop {
match operation.get_result() {
OperationResult::Ok(bytes_read) => {
len = bytes_read;
break;
}
OperationResult::Pending => {
yield_now();
}
OperationResult::Err(e) => {
panic!("e: {}", e);
}
}
}
}
if len == 0 {
break;
}
v.extend_from_slice(&buffer[..len]);
}
assert_eq!(&v, origin.as_bytes());
}
}
}