fix: implement child_process IPC (#21490)

This PR implements the Node child_process IPC functionality in Deno on
Unix systems.

For `fd > 2` a duplex unix pipe is set up between the parent and child
processes. Currently implements data passing via the channel in the JSON
serialization format.

1 files changed, 5 insertions, 0 deletions

diff --git a/runtime/worker_bootstrap.rs b/runtime/worker_bootstrap.rs
index 828bb3766..8674190f3 100644
--- a/runtime/worker_bootstrap.rs
+++ b/runtime/worker_bootstrap.rs
@@ -59,6 +59,7 @@ pub struct BootstrapOptions {
   pub inspect: bool,
   pub has_node_modules_dir: bool,
   pub maybe_binary_npm_command_name: Option<String>,
+  pub node_ipc_fd: Option<i32>,
 }
 
 impl Default for BootstrapOptions {
@@ -86,6 +87,7 @@ impl Default for BootstrapOptions {
       args: Default::default(),
       has_node_modules_dir: Default::default(),
       maybe_binary_npm_command_name: None,
+      node_ipc_fd: None,
     }
   }
 }
@@ -115,6 +117,8 @@ struct BootstrapV8<'a>(
   bool,
   // maybe_binary_npm_command_name
   Option<&'a str>,
+  // node_ipc_fd
+  i32,
 );
 
 impl BootstrapOptions {
@@ -134,6 +138,7 @@ impl BootstrapOptions {
       self.enable_testing_features,
       self.has_node_modules_dir,
       self.maybe_binary_npm_command_name.as_deref(),
+      self.node_ipc_fd.unwrap_or(-1),
     );
 
     bootstrap.serialize(ser).unwrap()