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use super::*;
#[cfg(test)]
use serial_test_derive::serial;
pub struct RemoteStorage<Manager> {
pub(crate) rs: *mut sys::ISteamRemoteStorage,
pub(crate) util: *mut sys::ISteamUtils,
pub(crate) inner: Arc<Inner<Manager>>,
}
impl <Manager> Clone for RemoteStorage<Manager> {
fn clone(&self) -> Self {
RemoteStorage {
inner: self.inner.clone(),
rs: self.rs,
util: self.util,
}
}
}
impl <Manager> RemoteStorage<Manager> {
pub fn set_cloud_enabled_for_app(&self, enabled: bool) {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_SetCloudEnabledForApp(self.rs, enabled);
}
}
pub fn is_cloud_enabled_for_app(&self) -> bool {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_IsCloudEnabledForApp(self.rs)
}
}
pub fn is_cloud_enabled_for_account(&self) -> bool {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_IsCloudEnabledForAccount(self.rs)
}
}
pub fn files(&self) -> Vec<SteamFileInfo> {
unsafe {
let count = sys::SteamAPI_ISteamRemoteStorage_GetFileCount(self.rs);
if count == -1 {
return Vec::new();
}
let mut files = Vec::with_capacity(count as usize);
for idx in 0 .. count {
let mut size = 0;
let name = CStr::from_ptr(sys::SteamAPI_ISteamRemoteStorage_GetFileNameAndSize(self.rs, idx, &mut size));
files.push(SteamFileInfo {
name: name.to_string_lossy().into_owned(),
size: size as u64,
})
}
files
}
}
pub fn file(&self, name: &str) -> SteamFile<Manager> {
SteamFile {
rs: self.rs,
util: self.util,
_inner: self.inner.clone(),
name: CString::new(name).unwrap(),
}
}
}
pub struct SteamFile<Manager> {
pub(crate) rs: *mut sys::ISteamRemoteStorage,
pub(crate) util: *mut sys::ISteamUtils,
pub(crate) _inner: Arc<Inner<Manager>>,
name: CString,
}
impl <Manager> SteamFile<Manager> {
pub fn delete(&self) -> bool {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_FileDelete(self.rs, self.name.as_ptr())
}
}
pub fn forget(&self) -> bool {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_FileForget(self.rs, self.name.as_ptr())
}
}
pub fn exists(&self) -> bool {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_FileExists(self.rs, self.name.as_ptr())
}
}
pub fn is_persisted(&self) -> bool {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_FilePersisted(self.rs, self.name.as_ptr())
}
}
pub fn timestamp(&self) -> i64 {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_GetFileTimestamp(self.rs, self.name.as_ptr())
}
}
pub fn write(self) -> SteamFileWriter<Manager> {
unsafe {
let handle = sys::SteamAPI_ISteamRemoteStorage_FileWriteStreamOpen(self.rs, self.name.as_ptr());
SteamFileWriter {
file: self,
handle,
}
}
}
pub fn read(self) -> SteamFileReader<Manager> {
unsafe {
SteamFileReader {
offset: 0,
size: sys::SteamAPI_ISteamRemoteStorage_GetFileSize(self.rs, self.name.as_ptr()) as usize,
file: self,
}
}
}
}
pub struct SteamFileWriter<Manager> {
file: SteamFile<Manager>,
handle: sys::UGCFileWriteStreamHandle_t,
}
impl <Manager> std::io::Write for SteamFileWriter<Manager> {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
unsafe {
if sys::SteamAPI_ISteamRemoteStorage_FileWriteStreamWriteChunk(self.file.rs, self.handle, buf.as_ptr() as *const _, buf.len() as _) {
Ok(buf.len())
} else {
Err(std::io::ErrorKind::Other.into())
}
}
}
fn flush(&mut self) -> std::io::Result<()> {
Ok(())
}
}
impl <Manager> Drop for SteamFileWriter<Manager> {
fn drop(&mut self) {
unsafe {
sys::SteamAPI_ISteamRemoteStorage_FileWriteStreamClose(self.file.rs, self.handle);
}
}
}
pub struct SteamFileReader<Manager> {
file: SteamFile<Manager>,
offset: usize,
size: usize,
}
impl <Manager> std::io::Read for SteamFileReader<Manager> {
fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
use std::cmp::min;
if buf.is_empty() || self.size - self.offset == 0 {
return Ok(0);
}
let len = min(
buf.len(),
self.size - self.offset
);
unsafe {
let api_call = sys::SteamAPI_ISteamRemoteStorage_FileReadAsync(self.file.rs, self.file.name.as_ptr(), self.offset as _, len as _);
let mut failed = false;
while !sys::SteamAPI_ISteamUtils_IsAPICallCompleted(self.file.util, api_call, &mut failed) {
std::thread::yield_now();
}
if failed {
return Err(std::io::ErrorKind::Other.into());
}
let mut callback: sys::RemoteStorageFileReadAsyncComplete_t = std::mem::zeroed();
sys::SteamAPI_ISteamUtils_GetAPICallResult(self.file.util, api_call, (&mut callback) as *mut _ as *mut _, std::mem::size_of::<sys::RemoteStorageFileReadAsyncComplete_t>() as _, 1332, &mut failed);
if callback.m_eResult != sys::EResult::k_EResultOK {
return Err(std::io::ErrorKind::Other.into());
}
let size = callback.m_cubRead as usize;
sys::SteamAPI_ISteamRemoteStorage_FileReadAsyncComplete(self.file.rs, callback.m_hFileReadAsync, buf.as_mut_ptr() as *mut _, callback.m_cubRead);
self.offset += size;
Ok(size)
}
}
}
impl <Manager> std::io::Seek for SteamFileReader<Manager> {
fn seek(&mut self, pos: std::io::SeekFrom) -> std::io::Result<u64> {
match pos {
std::io::SeekFrom::Current(o) => {
if self.offset as isize + o as isize >= self.size as isize {
return Err(std::io::ErrorKind::InvalidInput.into());
}
self.offset = (self.offset as isize + o as isize) as usize;
},
std::io::SeekFrom::End(o) => {
if o as isize >= self.size as isize {
return Err(std::io::ErrorKind::InvalidInput.into());
}
self.offset = (self.size as isize - 1 - o as isize) as usize;
},
std::io::SeekFrom::Start(o) => {
if o as usize >= self.size {
return Err(std::io::ErrorKind::InvalidInput.into());
}
self.offset = o as usize;
},
}
Ok(self.offset as u64)
}
}
#[derive(Clone, Debug)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub struct SteamFileInfo {
pub name: String,
pub size: u64,
}
#[test]
#[serial]
fn test_cloud() {
use std::io::{Write, Read};
let (client, _single) = Client::init().unwrap();
let rs = client.remote_storage();
println!("Listing files:");
for f in rs.files() {
println!("{:?}", f);
}
{
let test = rs.file("test.txt");
let mut w = test.write();
write!(w, "Testing").unwrap();
}
println!("Listing files:");
for f in rs.files() {
println!("{:?}", f);
}
let mut output = String::new();
let test = rs.file("test.txt");
test.read().read_to_string(&mut output).unwrap();
println!("Got: {:?}", output);
assert_eq!(output, "Testing");
}