Initial commit
This commit is contained in:
commit
e7e6c62208
1
.gitignore
vendored
Normal file
1
.gitignore
vendored
Normal file
@ -0,0 +1 @@
|
||||
target
|
||||
325
Cargo.lock
generated
Normal file
325
Cargo.lock
generated
Normal file
@ -0,0 +1,325 @@
|
||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
|
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
|
||||
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|
||||
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||||
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|
||||
"quote",
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||||
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]
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||||
|
||||
[[package]]
|
||||
name = "spin"
|
||||
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|
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||||
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||||
|
||||
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|
||||
name = "spinning_top"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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|
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dependencies = [
|
||||
"lock_api",
|
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]
|
||||
|
||||
[[package]]
|
||||
name = "std"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"core2",
|
||||
"crossbeam-queue",
|
||||
"derive-try-from-primitive",
|
||||
"elfloader",
|
||||
"hashbrown",
|
||||
"linked_list_allocator",
|
||||
"postcard",
|
||||
"serde",
|
||||
"spin",
|
||||
"x86_64",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.99"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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|
||||
dependencies = [
|
||||
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|
||||
"quote",
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
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|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
|
||||
|
||||
[[package]]
|
||||
name = "volatile"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
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|
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|
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|
||||
|
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[[package]]
|
||||
name = "x86_64"
|
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version = "0.14.10"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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|
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|
||||
"bit_field",
|
||||
"bitflags",
|
||||
"rustversion",
|
||||
"volatile",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "xmas-elf"
|
||||
version = "0.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "8d29b4d8e7beaceb4e77447ba941a7600d23d0319ab52da0461abea214832d5a"
|
||||
dependencies = [
|
||||
"zero",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "zero"
|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5f1bc8a6b2005884962297587045002d8cfb8dcec9db332f4ca216ddc5de82c5"
|
||||
18
Cargo.toml
Normal file
18
Cargo.toml
Normal file
@ -0,0 +1,18 @@
|
||||
[package]
|
||||
name = "file_rpc"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
postcard = { version = "1.0.2", default-features = false, features = ["alloc"] }
|
||||
serde = { version = "1.0.144", default-features = false, features = ["alloc", "derive"] }
|
||||
spin = "0.9.4"
|
||||
std = { version = "0.1.0", path = "../std" }
|
||||
|
||||
[profile.dev]
|
||||
panic="abort"
|
||||
|
||||
[profile.release]
|
||||
panic="abort"
|
||||
2
rust-toolchain.toml
Normal file
2
rust-toolchain.toml
Normal file
@ -0,0 +1,2 @@
|
||||
[toolchain]
|
||||
channel = "nightly"
|
||||
95
src/lib.rs
Normal file
95
src/lib.rs
Normal file
@ -0,0 +1,95 @@
|
||||
#![no_std]
|
||||
|
||||
use std::{
|
||||
boxed::Box,
|
||||
io,
|
||||
ipc::rpc::{self, IncomingCall},
|
||||
vec::Vec,
|
||||
};
|
||||
|
||||
use spin::RwLock;
|
||||
|
||||
static SERVER: RwLock<Option<Box<dyn Server>>> = RwLock::new(None);
|
||||
|
||||
const PROTO: u16 = 1;
|
||||
|
||||
pub trait Server: Send + Sync {
|
||||
fn read(&self, fd: u64, pos: u64, len: usize) -> Result<Vec<u8>, io::Error>;
|
||||
fn write(&self, fd: u64, pos: u64, data: &[u8]) -> Result<(), io::Error>;
|
||||
fn close(&self, fd: u64);
|
||||
}
|
||||
|
||||
#[derive(Copy, Clone)]
|
||||
pub struct Client(u64);
|
||||
|
||||
impl Client {
|
||||
pub fn new(pid: u64) -> Self {
|
||||
Self(pid)
|
||||
}
|
||||
|
||||
pub fn read(self, fd: u64, pos: u64, len: usize) -> Result<Vec<u8>, io::Error> {
|
||||
postcard::from_bytes(
|
||||
&rpc::send_call(
|
||||
self.0,
|
||||
PROTO,
|
||||
0,
|
||||
&postcard::to_allocvec(&(fd, pos, len)).unwrap(),
|
||||
)
|
||||
.get_return(),
|
||||
)
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
pub fn write(self, fd: u64, pos: u64, data: &[u8]) -> Result<(), io::Error> {
|
||||
postcard::from_bytes(
|
||||
&rpc::send_call(
|
||||
self.0,
|
||||
PROTO,
|
||||
1,
|
||||
&postcard::to_allocvec(&(fd, pos, data)).unwrap(),
|
||||
)
|
||||
.get_return(),
|
||||
)
|
||||
.unwrap()
|
||||
}
|
||||
|
||||
pub fn close(self, fd: u64) {
|
||||
postcard::from_bytes(
|
||||
&rpc::send_call(self.0, PROTO, 2, &postcard::to_allocvec(&fd).unwrap()).get_return(),
|
||||
)
|
||||
.unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
pub fn register_server(server: Box<dyn Server>) {
|
||||
*SERVER.write() = Some(server);
|
||||
rpc::register_callback(PROTO, callback);
|
||||
}
|
||||
|
||||
pub fn unregister_server() {
|
||||
rpc::unregister_callback(PROTO);
|
||||
*SERVER.write() = None;
|
||||
}
|
||||
|
||||
fn callback(call: IncomingCall) {
|
||||
let server_lock = SERVER.read();
|
||||
let server = server_lock.as_ref().unwrap();
|
||||
match call.func {
|
||||
0 => {
|
||||
let (fd, pos, len) = postcard::from_bytes(&call.args).unwrap();
|
||||
let ret = postcard::to_allocvec(&server.read(fd, pos, len)).unwrap();
|
||||
call.send_return(&ret);
|
||||
}
|
||||
1 => {
|
||||
let (fd, pos, data) = postcard::from_bytes(&call.args).unwrap();
|
||||
let ret = postcard::to_allocvec(&server.write(fd, pos, data)).unwrap();
|
||||
call.send_return(&ret);
|
||||
}
|
||||
2 => {
|
||||
let fd = postcard::from_bytes(&call.args).unwrap();
|
||||
let ret = postcard::to_allocvec(&server.close(fd)).unwrap();
|
||||
call.send_return(&ret);
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user