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process.rs
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process.rs
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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use super::check_unstable;
use deno_core::anyhow::Context;
use deno_core::error::type_error;
use deno_core::error::AnyError;
use deno_core::op2;
use deno_core::serde_json;
use deno_core::AsyncMutFuture;
use deno_core::AsyncRefCell;
use deno_core::OpState;
use deno_core::RcRef;
use deno_core::Resource;
use deno_core::ResourceId;
use deno_core::ToJsBuffer;
use deno_io::fs::FileResource;
use deno_io::ChildStderrResource;
use deno_io::ChildStdinResource;
use deno_io::ChildStdoutResource;
use deno_permissions::PermissionsContainer;
use serde::Deserialize;
use serde::Serialize;
use std::borrow::Cow;
use std::cell::RefCell;
use std::process::ExitStatus;
use std::rc::Rc;
use tokio::process::Command;
#[cfg(windows)]
use std::os::windows::process::CommandExt;
#[cfg(unix)]
use std::os::unix::prelude::ExitStatusExt;
#[cfg(unix)]
use std::os::unix::process::CommandExt;
pub const UNSTABLE_FEATURE_NAME: &str = "process";
#[derive(Copy, Clone, Eq, PartialEq, Deserialize)]
#[serde(rename_all = "snake_case")]
pub enum Stdio {
Inherit,
Piped,
Null,
IpcForInternalUse,
}
impl Stdio {
pub fn as_stdio(&self) -> std::process::Stdio {
match &self {
Stdio::Inherit => std::process::Stdio::inherit(),
Stdio::Piped => std::process::Stdio::piped(),
Stdio::Null => std::process::Stdio::null(),
_ => unreachable!(),
}
}
}
#[derive(Copy, Clone, Eq, PartialEq)]
pub enum StdioOrRid {
Stdio(Stdio),
Rid(ResourceId),
}
impl<'de> Deserialize<'de> for StdioOrRid {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: serde::Deserializer<'de>,
{
use serde_json::Value;
let value = Value::deserialize(deserializer)?;
match value {
Value::String(val) => match val.as_str() {
"inherit" => Ok(StdioOrRid::Stdio(Stdio::Inherit)),
"piped" => Ok(StdioOrRid::Stdio(Stdio::Piped)),
"null" => Ok(StdioOrRid::Stdio(Stdio::Null)),
"ipc_for_internal_use" => {
Ok(StdioOrRid::Stdio(Stdio::IpcForInternalUse))
}
val => Err(serde::de::Error::unknown_variant(
val,
&["inherit", "piped", "null"],
)),
},
Value::Number(val) => match val.as_u64() {
Some(val) if val <= ResourceId::MAX as u64 => {
Ok(StdioOrRid::Rid(val as ResourceId))
}
_ => Err(serde::de::Error::custom("Expected a positive integer")),
},
_ => Err(serde::de::Error::custom(
r#"Expected a resource id, "inherit", "piped", or "null""#,
)),
}
}
}
impl StdioOrRid {
pub fn as_stdio(
&self,
state: &mut OpState,
) -> Result<std::process::Stdio, AnyError> {
match &self {
StdioOrRid::Stdio(val) => Ok(val.as_stdio()),
StdioOrRid::Rid(rid) => {
FileResource::with_file(state, *rid, |file| Ok(file.as_stdio()?))
}
}
}
pub fn is_ipc(&self) -> bool {
matches!(self, StdioOrRid::Stdio(Stdio::IpcForInternalUse))
}
}
deno_core::extension!(
deno_process,
ops = [
op_spawn_child,
op_spawn_wait,
op_spawn_sync,
op_spawn_kill,
deprecated::op_run,
deprecated::op_run_status,
deprecated::op_kill,
],
);
/// Second member stores the pid separately from the RefCell. It's needed for
/// `op_spawn_kill`, where the RefCell is borrowed mutably by `op_spawn_wait`.
struct ChildResource(RefCell<tokio::process::Child>, u32);
impl Resource for ChildResource {
fn name(&self) -> Cow<str> {
"child".into()
}
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct SpawnArgs {
cmd: String,
args: Vec<String>,
cwd: Option<String>,
clear_env: bool,
env: Vec<(String, String)>,
#[cfg(unix)]
gid: Option<u32>,
#[cfg(unix)]
uid: Option<u32>,
#[cfg(windows)]
windows_raw_arguments: bool,
ipc: Option<i32>,
#[serde(flatten)]
stdio: ChildStdio,
}
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct ChildStdio {
stdin: StdioOrRid,
stdout: StdioOrRid,
stderr: StdioOrRid,
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct ChildStatus {
success: bool,
code: i32,
signal: Option<String>,
}
impl TryFrom<ExitStatus> for ChildStatus {
type Error = AnyError;
fn try_from(status: ExitStatus) -> Result<Self, Self::Error> {
let code = status.code();
#[cfg(unix)]
let signal = status.signal();
#[cfg(not(unix))]
let signal: Option<i32> = None;
let status = if let Some(signal) = signal {
ChildStatus {
success: false,
code: 128 + signal,
#[cfg(unix)]
signal: Some(
crate::ops::signal::signal_int_to_str(signal)?.to_string(),
),
#[cfg(not(unix))]
signal: None,
}
} else {
let code = code.expect("Should have either an exit code or a signal.");
ChildStatus {
success: code == 0,
code,
signal: None,
}
};
Ok(status)
}
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct SpawnOutput {
status: ChildStatus,
stdout: Option<ToJsBuffer>,
stderr: Option<ToJsBuffer>,
}
type CreateCommand = (std::process::Command, Option<ResourceId>);
fn create_command(
state: &mut OpState,
mut args: SpawnArgs,
api_name: &str,
) -> Result<CreateCommand, AnyError> {
state
.borrow_mut::<PermissionsContainer>()
.check_run(&args.cmd, api_name)?;
let mut command = std::process::Command::new(args.cmd);
#[cfg(windows)]
if args.windows_raw_arguments {
for arg in args.args.iter() {
command.raw_arg(arg);
}
} else {
command.args(args.args);
}
#[cfg(not(windows))]
command.args(args.args);
if let Some(cwd) = args.cwd {
command.current_dir(cwd);
}
if args.clear_env {
command.env_clear();
}
command.envs(args.env);
#[cfg(unix)]
if let Some(gid) = args.gid {
command.gid(gid);
}
#[cfg(unix)]
if let Some(uid) = args.uid {
command.uid(uid);
}
if args.stdio.stdin.is_ipc() {
args.ipc = Some(0);
} else {
command.stdin(args.stdio.stdin.as_stdio(state)?);
}
command.stdout(match args.stdio.stdout {
StdioOrRid::Stdio(Stdio::Inherit) => StdioOrRid::Rid(1).as_stdio(state)?,
value => value.as_stdio(state)?,
});
command.stderr(match args.stdio.stderr {
StdioOrRid::Stdio(Stdio::Inherit) => StdioOrRid::Rid(2).as_stdio(state)?,
value => value.as_stdio(state)?,
});
#[cfg(unix)]
// TODO(bartlomieju):
#[allow(clippy::undocumented_unsafe_blocks)]
unsafe {
if let Some(ipc) = args.ipc {
if ipc < 0 {
return Ok((command, None));
}
// SockFlag is broken on macOS
// https://github.com/nix-rust/nix/issues/861
let mut fds = [-1, -1];
#[cfg(not(target_os = "macos"))]
let flags = libc::SOCK_CLOEXEC | libc::SOCK_NONBLOCK;
#[cfg(target_os = "macos")]
let flags = 0;
let ret = libc::socketpair(
libc::AF_UNIX,
libc::SOCK_STREAM | flags,
0,
fds.as_mut_ptr(),
);
if ret != 0 {
return Err(std::io::Error::last_os_error().into());
}
if cfg!(target_os = "macos") {
let fcntl =
|fd: i32, flag: libc::c_int| -> Result<(), std::io::Error> {
let flags = libc::fcntl(fd, libc::F_GETFL, 0);
if flags == -1 {
return Err(fail(fds));
}
let ret = libc::fcntl(fd, libc::F_SETFL, flags | flag);
if ret == -1 {
return Err(fail(fds));
}
Ok(())
};
fn fail(fds: [i32; 2]) -> std::io::Error {
unsafe {
libc::close(fds[0]);
libc::close(fds[1]);
}
std::io::Error::last_os_error()
}
// SOCK_NONBLOCK is not supported on macOS.
(fcntl)(fds[0], libc::O_NONBLOCK)?;
(fcntl)(fds[1], libc::O_NONBLOCK)?;
// SOCK_CLOEXEC is not supported on macOS.
(fcntl)(fds[0], libc::FD_CLOEXEC)?;
(fcntl)(fds[1], libc::FD_CLOEXEC)?;
}
let fd1 = fds[0];
let fd2 = fds[1];
command.pre_exec(move || {
if ipc >= 0 {
let _fd = libc::dup2(fd2, ipc);
libc::close(fd2);
}
libc::setgroups(0, std::ptr::null());
Ok(())
});
/* One end returned to parent process (this) */
let pipe_rid = Some(
state
.resource_table
.add(deno_node::IpcJsonStreamResource::new(fd1 as _)?),
);
/* The other end passed to child process via DENO_CHANNEL_FD */
command.env("DENO_CHANNEL_FD", format!("{}", ipc));
return Ok((command, pipe_rid));
}
Ok((command, None))
}
#[cfg(windows)]
// Safety: We setup a windows named pipe and pass one end to the child process.
unsafe {
use windows_sys::Win32::Foundation::CloseHandle;
use windows_sys::Win32::Foundation::DuplicateHandle;
use windows_sys::Win32::Foundation::DUPLICATE_SAME_ACCESS;
use windows_sys::Win32::Foundation::ERROR_ACCESS_DENIED;
use windows_sys::Win32::Foundation::ERROR_PIPE_CONNECTED;
use windows_sys::Win32::Foundation::GENERIC_READ;
use windows_sys::Win32::Foundation::GENERIC_WRITE;
use windows_sys::Win32::Foundation::INVALID_HANDLE_VALUE;
use windows_sys::Win32::Security::SECURITY_ATTRIBUTES;
use windows_sys::Win32::Storage::FileSystem::CreateFileW;
use windows_sys::Win32::Storage::FileSystem::FILE_FLAG_FIRST_PIPE_INSTANCE;
use windows_sys::Win32::Storage::FileSystem::FILE_FLAG_OVERLAPPED;
use windows_sys::Win32::Storage::FileSystem::OPEN_EXISTING;
use windows_sys::Win32::Storage::FileSystem::PIPE_ACCESS_DUPLEX;
use windows_sys::Win32::System::Pipes::ConnectNamedPipe;
use windows_sys::Win32::System::Pipes::CreateNamedPipeW;
use windows_sys::Win32::System::Pipes::PIPE_READMODE_BYTE;
use windows_sys::Win32::System::Pipes::PIPE_TYPE_BYTE;
use windows_sys::Win32::System::Threading::GetCurrentProcess;
use std::io;
use std::os::windows::ffi::OsStrExt;
use std::path::Path;
use std::ptr;
if let Some(ipc) = args.ipc {
if ipc < 0 {
return Ok((command, None));
}
let (path, hd1) = loop {
let name = format!("\\\\.\\pipe\\{}", uuid::Uuid::new_v4());
let mut path = Path::new(&name)
.as_os_str()
.encode_wide()
.collect::<Vec<_>>();
path.push(0);
let hd1 = CreateNamedPipeW(
path.as_ptr(),
PIPE_ACCESS_DUPLEX
| FILE_FLAG_FIRST_PIPE_INSTANCE
| FILE_FLAG_OVERLAPPED,
PIPE_TYPE_BYTE | PIPE_READMODE_BYTE,
1,
65536,
65536,
0,
std::ptr::null_mut(),
);
if hd1 == INVALID_HANDLE_VALUE {
let err = io::Error::last_os_error();
/* If the pipe name is already in use, try again. */
if err.raw_os_error() == Some(ERROR_ACCESS_DENIED as i32) {
continue;
}
return Err(err.into());
}
break (path, hd1);
};
/* Create child pipe handle. */
let s = SECURITY_ATTRIBUTES {
nLength: std::mem::size_of::<SECURITY_ATTRIBUTES>() as u32,
lpSecurityDescriptor: ptr::null_mut(),
bInheritHandle: 1,
};
let mut hd2 = CreateFileW(
path.as_ptr(),
GENERIC_READ | GENERIC_WRITE,
0,
&s,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
0,
);
if hd2 == INVALID_HANDLE_VALUE {
return Err(io::Error::last_os_error().into());
}
// Will not block because we have create the pair.
if ConnectNamedPipe(hd1, ptr::null_mut()) == 0 {
let err = std::io::Error::last_os_error();
if err.raw_os_error() != Some(ERROR_PIPE_CONNECTED as i32) {
CloseHandle(hd2);
return Err(err.into());
}
}
// Duplicating the handle to allow the child process to use it.
if DuplicateHandle(
GetCurrentProcess(),
hd2,
GetCurrentProcess(),
&mut hd2,
0,
1,
DUPLICATE_SAME_ACCESS,
) == 0
{
return Err(std::io::Error::last_os_error().into());
}
/* One end returned to parent process (this) */
let pipe_fd = Some(
state
.resource_table
.add(deno_node::IpcJsonStreamResource::new(hd1 as i64)?),
);
/* The other end passed to child process via DENO_CHANNEL_FD */
command.env("DENO_CHANNEL_FD", format!("{}", hd2 as i64));
return Ok((command, pipe_fd));
}
}
#[cfg(not(unix))]
return Ok((command, None));
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct Child {
rid: ResourceId,
pid: u32,
stdin_rid: Option<ResourceId>,
stdout_rid: Option<ResourceId>,
stderr_rid: Option<ResourceId>,
pipe_fd: Option<ResourceId>,
}
fn spawn_child(
state: &mut OpState,
command: std::process::Command,
pipe_fd: Option<ResourceId>,
) -> Result<Child, AnyError> {
let mut command = tokio::process::Command::from(command);
// TODO(@crowlkats): allow detaching processes.
// currently deno will orphan a process when exiting with an error or Deno.exit()
// We want to kill child when it's closed
command.kill_on_drop(true);
let mut child = match command.spawn() {
Ok(child) => child,
Err(err) => {
let command = command.as_std();
let command_name = command.get_program().to_string_lossy();
if let Some(cwd) = command.get_current_dir() {
// launching a sub process always depends on the real
// file system so using these methods directly is ok
#[allow(clippy::disallowed_methods)]
if !cwd.exists() {
return Err(
std::io::Error::new(
std::io::ErrorKind::NotFound,
format!(
"Failed to spawn '{}': No such cwd '{}'",
command_name,
cwd.to_string_lossy()
),
)
.into(),
);
}
#[allow(clippy::disallowed_methods)]
if !cwd.is_dir() {
return Err(
std::io::Error::new(
std::io::ErrorKind::NotFound,
format!(
"Failed to spawn '{}': cwd is not a directory '{}'",
command_name,
cwd.to_string_lossy()
),
)
.into(),
);
}
}
return Err(AnyError::from(err).context(format!(
"Failed to spawn '{}'",
command.get_program().to_string_lossy()
)));
}
};
let pid = child.id().expect("Process ID should be set.");
let stdin_rid = child
.stdin
.take()
.map(|stdin| state.resource_table.add(ChildStdinResource::from(stdin)));
let stdout_rid = child
.stdout
.take()
.map(|stdout| state.resource_table.add(ChildStdoutResource::from(stdout)));
let stderr_rid = child
.stderr
.take()
.map(|stderr| state.resource_table.add(ChildStderrResource::from(stderr)));
let child_rid = state
.resource_table
.add(ChildResource(RefCell::new(child), pid));
Ok(Child {
rid: child_rid,
pid,
stdin_rid,
stdout_rid,
stderr_rid,
pipe_fd,
})
}
#[op2]
#[serde]
fn op_spawn_child(
state: &mut OpState,
#[serde] args: SpawnArgs,
#[string] api_name: String,
) -> Result<Child, AnyError> {
let (command, pipe_rid) = create_command(state, args, &api_name)?;
spawn_child(state, command, pipe_rid)
}
#[op2(async)]
#[allow(clippy::await_holding_refcell_ref)]
#[serde]
async fn op_spawn_wait(
state: Rc<RefCell<OpState>>,
#[smi] rid: ResourceId,
) -> Result<ChildStatus, AnyError> {
let resource = state
.borrow_mut()
.resource_table
.get::<ChildResource>(rid)?;
let result = resource.0.try_borrow_mut()?.wait().await?.try_into();
if let Ok(resource) = state.borrow_mut().resource_table.take_any(rid) {
resource.close();
}
result
}
#[op2]
#[serde]
fn op_spawn_sync(
state: &mut OpState,
#[serde] args: SpawnArgs,
) -> Result<SpawnOutput, AnyError> {
let stdout = matches!(args.stdio.stdout, StdioOrRid::Stdio(Stdio::Piped));
let stderr = matches!(args.stdio.stderr, StdioOrRid::Stdio(Stdio::Piped));
let (mut command, _) =
create_command(state, args, "Deno.Command().outputSync()")?;
let output = command.output().with_context(|| {
format!(
"Failed to spawn '{}'",
command.get_program().to_string_lossy()
)
})?;
Ok(SpawnOutput {
status: output.status.try_into()?,
stdout: if stdout {
Some(output.stdout.into())
} else {
None
},
stderr: if stderr {
Some(output.stderr.into())
} else {
None
},
})
}
#[op2(fast)]
fn op_spawn_kill(
state: &mut OpState,
#[smi] rid: ResourceId,
#[string] signal: String,
) -> Result<(), AnyError> {
if let Ok(child_resource) = state.resource_table.get::<ChildResource>(rid) {
deprecated::kill(child_resource.1 as i32, &signal)?;
return Ok(());
}
Err(type_error("Child process has already terminated."))
}
mod deprecated {
use super::*;
#[derive(Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct RunArgs {
cmd: Vec<String>,
cwd: Option<String>,
clear_env: bool,
env: Vec<(String, String)>,
#[cfg(unix)]
gid: Option<u32>,
#[cfg(unix)]
uid: Option<u32>,
stdin: StdioOrRid,
stdout: StdioOrRid,
stderr: StdioOrRid,
}
struct ChildResource {
child: AsyncRefCell<tokio::process::Child>,
}
impl Resource for ChildResource {
fn name(&self) -> Cow<str> {
"child".into()
}
}
impl ChildResource {
fn borrow_mut(self: Rc<Self>) -> AsyncMutFuture<tokio::process::Child> {
RcRef::map(self, |r| &r.child).borrow_mut()
}
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
// TODO(@AaronO): maybe find a more descriptive name or a convention for return structs
pub struct RunInfo {
rid: ResourceId,
pid: Option<u32>,
stdin_rid: Option<ResourceId>,
stdout_rid: Option<ResourceId>,
stderr_rid: Option<ResourceId>,
}
#[op2]
#[serde]
pub fn op_run(
state: &mut OpState,
#[serde] run_args: RunArgs,
) -> Result<RunInfo, AnyError> {
let args = run_args.cmd;
state
.borrow_mut::<PermissionsContainer>()
.check_run(&args[0], "Deno.run()")?;
let env = run_args.env;
let cwd = run_args.cwd;
let mut c = Command::new(args.first().unwrap());
(1..args.len()).for_each(|i| {
let arg = args.get(i).unwrap();
c.arg(arg);
});
cwd.map(|d| c.current_dir(d));
if run_args.clear_env {
super::check_unstable(state, UNSTABLE_FEATURE_NAME, "Deno.run.clearEnv");
c.env_clear();
}
for (key, value) in &env {
c.env(key, value);
}
#[cfg(unix)]
if let Some(gid) = run_args.gid {
super::check_unstable(state, UNSTABLE_FEATURE_NAME, "Deno.run.gid");
c.gid(gid);
}
#[cfg(unix)]
if let Some(uid) = run_args.uid {
super::check_unstable(state, UNSTABLE_FEATURE_NAME, "Deno.run.uid");
c.uid(uid);
}
#[cfg(unix)]
// TODO(bartlomieju):
#[allow(clippy::undocumented_unsafe_blocks)]
unsafe {
c.pre_exec(|| {
libc::setgroups(0, std::ptr::null());
Ok(())
});
}
// TODO: make this work with other resources, eg. sockets
c.stdin(run_args.stdin.as_stdio(state)?);
c.stdout(
match run_args.stdout {
StdioOrRid::Stdio(Stdio::Inherit) => StdioOrRid::Rid(1),
value => value,
}
.as_stdio(state)?,
);
c.stderr(
match run_args.stderr {
StdioOrRid::Stdio(Stdio::Inherit) => StdioOrRid::Rid(2),
value => value,
}
.as_stdio(state)?,
);
// We want to kill child when it's closed
c.kill_on_drop(true);
// Spawn the command.
let mut child = c.spawn()?;
let pid = child.id();
let stdin_rid = match child.stdin.take() {
Some(child_stdin) => {
let rid = state
.resource_table
.add(ChildStdinResource::from(child_stdin));
Some(rid)
}
None => None,
};
let stdout_rid = match child.stdout.take() {
Some(child_stdout) => {
let rid = state
.resource_table
.add(ChildStdoutResource::from(child_stdout));
Some(rid)
}
None => None,
};
let stderr_rid = match child.stderr.take() {
Some(child_stderr) => {
let rid = state
.resource_table
.add(ChildStderrResource::from(child_stderr));
Some(rid)
}
None => None,
};
let child_resource = ChildResource {
child: AsyncRefCell::new(child),
};
let child_rid = state.resource_table.add(child_resource);
Ok(RunInfo {
rid: child_rid,
pid,
stdin_rid,
stdout_rid,
stderr_rid,
})
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
pub struct ProcessStatus {
got_signal: bool,
exit_code: i32,
exit_signal: i32,
}
#[op2(async)]
#[serde]
pub async fn op_run_status(
state: Rc<RefCell<OpState>>,
#[smi] rid: ResourceId,
) -> Result<ProcessStatus, AnyError> {
let resource = state
.borrow_mut()
.resource_table
.get::<ChildResource>(rid)?;
let mut child = resource.borrow_mut().await;
let run_status = child.wait().await?;
let code = run_status.code();
#[cfg(unix)]
let signal = run_status.signal();
#[cfg(not(unix))]
let signal = Default::default();
code
.or(signal)
.expect("Should have either an exit code or a signal.");
let got_signal = signal.is_some();
Ok(ProcessStatus {
got_signal,
exit_code: code.unwrap_or(-1),
exit_signal: signal.unwrap_or(-1),
})
}
#[cfg(unix)]
pub fn kill(pid: i32, signal: &str) -> Result<(), AnyError> {
let signo = super::super::signal::signal_str_to_int(signal)?;
use nix::sys::signal::kill as unix_kill;
use nix::sys::signal::Signal;
use nix::unistd::Pid;
let sig = Signal::try_from(signo)?;
unix_kill(Pid::from_raw(pid), Option::Some(sig)).map_err(AnyError::from)
}
#[cfg(not(unix))]
pub fn kill(pid: i32, signal: &str) -> Result<(), AnyError> {
use std::io::Error;
use std::io::ErrorKind::NotFound;
use winapi::shared::minwindef::DWORD;
use winapi::shared::minwindef::FALSE;
use winapi::shared::minwindef::TRUE;
use winapi::shared::winerror::ERROR_INVALID_PARAMETER;
use winapi::um::errhandlingapi::GetLastError;
use winapi::um::handleapi::CloseHandle;
use winapi::um::processthreadsapi::OpenProcess;
use winapi::um::processthreadsapi::TerminateProcess;
use winapi::um::winnt::PROCESS_TERMINATE;
if !matches!(signal, "SIGKILL" | "SIGTERM") {
Err(type_error(format!("Invalid signal: {signal}")))
} else if pid <= 0 {
Err(type_error("Invalid pid"))
} else {
let handle =
// SAFETY: winapi call
unsafe { OpenProcess(PROCESS_TERMINATE, FALSE, pid as DWORD) };
if handle.is_null() {
// SAFETY: winapi call
let err = match unsafe { GetLastError() } {
ERROR_INVALID_PARAMETER => Error::from(NotFound), // Invalid `pid`.
errno => Error::from_raw_os_error(errno as i32),
};
Err(err.into())
} else {
// SAFETY: winapi calls
unsafe {
let is_terminated = TerminateProcess(handle, 1);
CloseHandle(handle);
match is_terminated {
FALSE => Err(Error::last_os_error().into()),
TRUE => Ok(()),
_ => unreachable!(),
}
}
}
}
}
#[op2(fast)]
pub fn op_kill(
state: &mut OpState,
#[smi] pid: i32,
#[string] signal: String,
#[string] api_name: String,
) -> Result<(), AnyError> {
state
.borrow_mut::<PermissionsContainer>()
.check_run_all(&api_name)?;
kill(pid, &signal)?;
Ok(())
}
}