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use crate::tools::bench::BenchEvent;
use deno_core::error::generic_error;
use deno_core::error::AnyError;
use deno_core::op;
use deno_core::Extension;
use deno_core::ModuleSpecifier;
use deno_core::OpState;
use deno_runtime::permissions::create_child_permissions;
use deno_runtime::permissions::ChildPermissionsArg;
use deno_runtime::permissions::Permissions;
use std::time;
use tokio::sync::mpsc::UnboundedSender;
use uuid::Uuid;
pub fn init(sender: UnboundedSender<BenchEvent>, unstable: bool) -> Extension {
Extension::builder()
.ops(vec![
op_pledge_test_permissions::decl(),
op_restore_test_permissions::decl(),
op_get_bench_origin::decl(),
op_dispatch_bench_event::decl(),
op_bench_now::decl(),
op_bench_check_unstable::decl(),
])
.state(move |state| {
state.put(sender.clone());
state.put(Unstable(unstable));
Ok(())
})
.build()
}
pub struct Unstable(pub bool);
fn check_unstable(state: &OpState, api_name: &str) {
let unstable = state.borrow::<Unstable>();
if !unstable.0 {
eprintln!(
"Unstable API '{}'. The --unstable flag must be provided.",
api_name
);
std::process::exit(70);
}
}
#[op]
fn op_bench_check_unstable(state: &mut OpState) -> Result<(), AnyError> {
check_unstable(state, "Deno.bench");
Ok(())
}
#[derive(Clone)]
struct PermissionsHolder(Uuid, Permissions);
#[op]
pub fn op_pledge_test_permissions(
state: &mut OpState,
args: ChildPermissionsArg,
) -> Result<Uuid, AnyError> {
let token = Uuid::new_v4();
let parent_permissions = state.borrow_mut::<Permissions>();
let worker_permissions = create_child_permissions(parent_permissions, args)?;
let parent_permissions = parent_permissions.clone();
state.put::<PermissionsHolder>(PermissionsHolder(token, parent_permissions));
// NOTE: This call overrides current permission set for the worker
state.put::<Permissions>(worker_permissions);
Ok(token)
}
#[op]
pub fn op_restore_test_permissions(
state: &mut OpState,
token: Uuid,
) -> Result<(), AnyError> {
if let Some(permissions_holder) = state.try_take::<PermissionsHolder>() {
if token != permissions_holder.0 {
panic!("restore test permissions token does not match the stored token");
}
let permissions = permissions_holder.1;
state.put::<Permissions>(permissions);
Ok(())
} else {
Err(generic_error("no permissions to restore"))
}
}
#[op]
fn op_get_bench_origin(state: &mut OpState) -> Result<String, AnyError> {
Ok(state.borrow::<ModuleSpecifier>().to_string())
}
#[op]
fn op_dispatch_bench_event(
state: &mut OpState,
event: BenchEvent,
) -> Result<(), AnyError> {
let sender = state.borrow::<UnboundedSender<BenchEvent>>().clone();
sender.send(event).ok();
Ok(())
}
#[op]
fn op_bench_now(state: &mut OpState) -> Result<u64, AnyError> {
let ns = state.borrow::<time::Instant>().elapsed().as_nanos();
let ns_u64 = u64::try_from(ns)?;
Ok(ns_u64)
}
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