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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
use super::dispatch_flatbuffers::serialize_response;
use super::utils::*;
use crate::deno_error;
use crate::msg;
use crate::resources;
use crate::signal::kill;
use crate::state::ThreadSafeState;
use deno::*;
use flatbuffers::FlatBufferBuilder;
use futures;
use futures::Future;
use std;
use std::convert::From;
use std::process::Command;
use tokio_process::CommandExt;
#[cfg(unix)]
use std::os::unix::process::ExitStatusExt;
fn subprocess_stdio_map(v: msg::ProcessStdio) -> std::process::Stdio {
match v {
msg::ProcessStdio::Inherit => std::process::Stdio::inherit(),
msg::ProcessStdio::Piped => std::process::Stdio::piped(),
msg::ProcessStdio::Null => std::process::Stdio::null(),
}
}
pub fn op_run(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
if !base.sync() {
return Err(deno_error::no_async_support());
}
let cmd_id = base.cmd_id();
state.check_run()?;
assert!(data.is_none());
let inner = base.inner_as_run().unwrap();
let args = inner.args().unwrap();
let env = inner.env().unwrap();
let cwd = inner.cwd();
let mut c = Command::new(args.get(0));
(1..args.len()).for_each(|i| {
let arg = args.get(i);
c.arg(arg);
});
cwd.map(|d| c.current_dir(d));
(0..env.len()).for_each(|i| {
let entry = env.get(i);
c.env(entry.key().unwrap(), entry.value().unwrap());
});
// TODO: make this work with other resources, eg. sockets
let stdin_rid = inner.stdin_rid();
if stdin_rid > 0 {
c.stdin(resources::get_file(stdin_rid)?);
} else {
c.stdin(subprocess_stdio_map(inner.stdin()));
}
let stdout_rid = inner.stdout_rid();
if stdout_rid > 0 {
c.stdout(resources::get_file(stdout_rid)?);
} else {
c.stdout(subprocess_stdio_map(inner.stdout()));
}
let stderr_rid = inner.stderr_rid();
if stderr_rid > 0 {
c.stderr(resources::get_file(stderr_rid)?);
} else {
c.stderr(subprocess_stdio_map(inner.stderr()));
}
// Spawn the command.
let child = c.spawn_async().map_err(ErrBox::from)?;
let pid = child.id();
let resources = resources::add_child(child);
let mut res_args = msg::RunResArgs {
rid: resources.child_rid,
pid,
..Default::default()
};
if let Some(stdin_rid) = resources.stdin_rid {
res_args.stdin_rid = stdin_rid;
}
if let Some(stdout_rid) = resources.stdout_rid {
res_args.stdout_rid = stdout_rid;
}
if let Some(stderr_rid) = resources.stderr_rid {
res_args.stderr_rid = stderr_rid;
}
let builder = &mut FlatBufferBuilder::new();
let inner = msg::RunRes::create(builder, &res_args);
Ok(Op::Sync(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::RunRes,
..Default::default()
},
)))
}
pub fn op_run_status(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
assert!(data.is_none());
let cmd_id = base.cmd_id();
let inner = base.inner_as_run_status().unwrap();
let rid = inner.rid();
state.check_run()?;
let future = resources::child_status(rid)?;
let future = future.and_then(move |run_status| {
let code = run_status.code();
#[cfg(unix)]
let signal = run_status.signal();
#[cfg(not(unix))]
let signal = None;
code
.or(signal)
.expect("Should have either an exit code or a signal.");
let got_signal = signal.is_some();
let builder = &mut FlatBufferBuilder::new();
let inner = msg::RunStatusRes::create(
builder,
&msg::RunStatusResArgs {
got_signal,
exit_code: code.unwrap_or(-1),
exit_signal: signal.unwrap_or(-1),
},
);
Ok(serialize_response(
cmd_id,
builder,
msg::BaseArgs {
inner: Some(inner.as_union_value()),
inner_type: msg::Any::RunStatusRes,
..Default::default()
},
))
});
if base.sync() {
let buf = future.wait()?;
Ok(Op::Sync(buf))
} else {
Ok(Op::Async(Box::new(future)))
}
}
pub fn op_kill(
state: &ThreadSafeState,
base: &msg::Base<'_>,
data: Option<PinnedBuf>,
) -> CliOpResult {
state.check_run()?;
assert!(data.is_none());
let inner = base.inner_as_kill().unwrap();
let pid = inner.pid();
let signo = inner.signo();
kill(pid, signo)?;
ok_buf(empty_buf())
}
|
