diff options
Diffstat (limited to 'cli/ops/dispatch_flatbuffers.rs')
-rw-r--r-- | cli/ops/dispatch_flatbuffers.rs | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/cli/ops/dispatch_flatbuffers.rs b/cli/ops/dispatch_flatbuffers.rs deleted file mode 100644 index edec77703..000000000 --- a/cli/ops/dispatch_flatbuffers.rs +++ /dev/null @@ -1,128 +0,0 @@ -use super::utils::CliOpResult; -use crate::deno_error::GetErrorKind; -use crate::msg; -use crate::state::ThreadSafeState; -use deno::*; -use flatbuffers::FlatBufferBuilder; -use hyper::rt::Future; - -type CliDispatchFn = fn( - state: &ThreadSafeState, - base: &msg::Base<'_>, - data: Option<PinnedBuf>, -) -> CliOpResult; - -use super::files::{op_read, op_write}; - -/// Processes raw messages from JavaScript. -/// This functions invoked every time Deno.core.dispatch() is called. -/// control corresponds to the first argument of Deno.core.dispatch(). -/// data corresponds to the second argument of Deno.core.dispatch(). -pub fn dispatch( - state: &ThreadSafeState, - control: &[u8], - zero_copy: Option<PinnedBuf>, -) -> CoreOp { - let base = msg::get_root_as_base(&control); - let inner_type = base.inner_type(); - let is_sync = base.sync(); - let cmd_id = base.cmd_id(); - - debug!( - "msg_from_js {} sync {}", - msg::enum_name_any(inner_type), - is_sync - ); - - let op_func: CliDispatchFn = match op_selector_std(inner_type) { - Some(v) => v, - None => panic!("Unhandled message {}", msg::enum_name_any(inner_type)), - }; - - let op_result = op_func(state, &base, zero_copy); - - match op_result { - Ok(Op::Sync(buf)) => Op::Sync(buf), - Ok(Op::Async(fut)) => { - let result_fut = Box::new( - fut - .or_else(move |err: ErrBox| -> Result<Buf, ()> { - debug!("op err {}", err); - // No matter whether we got an Err or Ok, we want a serialized message to - // send back. So transform the DenoError into a Buf. - let builder = &mut FlatBufferBuilder::new(); - let errmsg_offset = builder.create_string(&format!("{}", err)); - Ok(serialize_response( - cmd_id, - builder, - msg::BaseArgs { - error: Some(errmsg_offset), - error_kind: err.kind(), - ..Default::default() - }, - )) - }) - .and_then(move |buf: Buf| -> Result<Buf, ()> { - // Handle empty responses. For sync responses we just want - // to send null. For async we want to send a small message - // with the cmd_id. - let buf = if buf.len() > 0 { - buf - } else { - let builder = &mut FlatBufferBuilder::new(); - serialize_response( - cmd_id, - builder, - msg::BaseArgs { - ..Default::default() - }, - ) - }; - Ok(buf) - }) - .map_err(|err| panic!("unexpected error {:?}", err)), - ); - Op::Async(result_fut) - } - Err(err) => { - debug!("op err {}", err); - // No matter whether we got an Err or Ok, we want a serialized message to - // send back. So transform the DenoError into a Buf. - let builder = &mut FlatBufferBuilder::new(); - let errmsg_offset = builder.create_string(&format!("{}", err)); - let response_buf = serialize_response( - cmd_id, - builder, - msg::BaseArgs { - error: Some(errmsg_offset), - error_kind: err.kind(), - ..Default::default() - }, - ); - Op::Sync(response_buf) - } - } -} - -pub fn serialize_response( - cmd_id: u32, - builder: &mut FlatBufferBuilder<'_>, - mut args: msg::BaseArgs<'_>, -) -> Buf { - args.cmd_id = cmd_id; - let base = msg::Base::create(builder, &args); - msg::finish_base_buffer(builder, base); - let data = builder.finished_data(); - // println!("serialize_response {:x?}", data); - data.into() -} - -/// Standard ops set for most isolates -pub fn op_selector_std(inner_type: msg::Any) -> Option<CliDispatchFn> { - match inner_type { - msg::Any::Read => Some(op_read), - msg::Any::Write => Some(op_write), - - _ => None, - } -} |