use std::ffi::OsStr;#[cfg(target_os = "windows")]const CREATE_NO_WINDOW: u32 = 0x0800_0000_u32;#[cfg(target_os = "windows")]pub fn new_std_command(program: impl AsRef<OsStr>) -> std::process::Command { use std::os::windows::process::CommandExt; let mut command = std::process::Command::new(program); command.creation_flags(CREATE_NO_WINDOW); command}#[cfg(not(target_os = "windows"))]pub fn new_std_command(program: impl AsRef<OsStr>) -> std::process::Command { std::process::Command::new(program)}#[cfg(target_os = "windows")]pub fn new_smol_command(program: impl AsRef<OsStr>) -> smol::process::Command { use smol::process::windows::CommandExt; let mut command = smol::process::Command::new(program); command.creation_flags(CREATE_NO_WINDOW); command}#[cfg(target_os = "macos")]pub fn new_smol_command(program: impl AsRef<OsStr>) -> smol::process::Command { use std::os::unix::process::CommandExt; // Create a std::process::Command first so we can use pre_exec let mut std_cmd = std::process::Command::new(program); // WORKAROUND: Reset exception ports before exec to prevent inheritance of // crash handler exception ports. Due to a timing issue, child processes can // inherit the parent's exception ports before they're fully stabilized, // which can block child process spawning. // See: https://github.com/zed-industries/zed/issues/36754 unsafe { std_cmd.pre_exec(|| { // Reset all exception ports to system defaults for this task. // This prevents the child from inheriting the parent's crash handler // exception ports. reset_exception_ports(); Ok(()) }); } // Convert to async_process::Command via From trait smol::process::Command::from(std_cmd)}#[cfg(all(not(target_os = "windows"), not(target_os = "macos")))]pub fn new_smol_command(program: impl AsRef<OsStr>) -> smol::process::Command { smol::process::Command::new(program)}#[cfg(target_os = "macos")]pub fn reset_exception_ports() { use mach2::exception_types::{ EXC_MASK_ALL, EXCEPTION_DEFAULT, exception_behavior_t, exception_mask_t, }; use mach2::kern_return::{KERN_SUCCESS, kern_return_t}; use mach2::mach_types::task_t; use mach2::port::{MACH_PORT_NULL, mach_port_t}; use mach2::thread_status::{THREAD_STATE_NONE, thread_state_flavor_t}; use mach2::traps::mach_task_self; // FFI binding for task_set_exception_ports (not exposed by mach2 crate) unsafe extern "C" { fn task_set_exception_ports( task: task_t, exception_mask: exception_mask_t, new_port: mach_port_t, behavior: exception_behavior_t, new_flavor: thread_state_flavor_t, ) -> kern_return_t; } unsafe { let task = mach_task_self(); // Reset all exception ports to MACH_PORT_NULL (system default) // This prevents the child process from inheriting the parent's crash handler let kr = task_set_exception_ports( task, EXC_MASK_ALL, MACH_PORT_NULL, EXCEPTION_DEFAULT as exception_behavior_t, THREAD_STATE_NONE, ); if kr != KERN_SUCCESS { // Log but don't fail - the process can still work without this workaround eprintln!( "Warning: failed to reset exception ports in child process (kern_return: {})", kr ); } }}
use std::ffi::OsStr;
#[cfg(target_os = "windows")]
const CREATE_NO_WINDOW: u32 = 0x0800_0000_u32;
#[cfg(target_os = "windows")]
pub fn new_std_command(program: impl AsRef<OsStr>) -> std::process::Command {
use std::os::windows::process::CommandExt;
let mut command = std::process::Command::new(program);
command.creation_flags(CREATE_NO_WINDOW);
command
}
#[cfg(not(target_os = "windows"))]
pub fn new_std_command(program: impl AsRef<OsStr>) -> std::process::Command {
std::process::Command::new(program)
}
#[cfg(target_os = "windows")]
pub fn new_smol_command(program: impl AsRef<OsStr>) -> smol::process::Command {
use smol::process::windows::CommandExt;
let mut command = smol::process::Command::new(program);
command.creation_flags(CREATE_NO_WINDOW);
command
}
#[cfg(target_os = "macos")]
pub fn new_smol_command(program: impl AsRef<OsStr>) -> smol::process::Command {
use std::os::unix::process::CommandExt;
// Create a std::process::Command first so we can use pre_exec
let mut std_cmd = std::process::Command::new(program);
// WORKAROUND: Reset exception ports before exec to prevent inheritance of
// crash handler exception ports. Due to a timing issue, child processes can
// inherit the parent's exception ports before they're fully stabilized,
// which can block child process spawning.
// See: https://github.com/zed-industries/zed/issues/36754
unsafe {
std_cmd.pre_exec(|| {
// Reset all exception ports to system defaults for this task.
// This prevents the child from inheriting the parent's crash handler
// exception ports.
reset_exception_ports();
Ok(())
});
}
// Convert to async_process::Command via From trait
smol::process::Command::from(std_cmd)
}
#[cfg(all(not(target_os = "windows"), not(target_os = "macos")))]
pub fn new_smol_command(program: impl AsRef<OsStr>) -> smol::process::Command {
smol::process::Command::new(program)
}
#[cfg(target_os = "macos")]
pub fn reset_exception_ports() {
use mach2::exception_types::{
EXC_MASK_ALL, EXCEPTION_DEFAULT, exception_behavior_t, exception_mask_t,
};
use mach2::kern_return::{KERN_SUCCESS, kern_return_t};
use mach2::mach_types::task_t;
use mach2::port::{MACH_PORT_NULL, mach_port_t};
use mach2::thread_status::{THREAD_STATE_NONE, thread_state_flavor_t};
use mach2::traps::mach_task_self;
// FFI binding for task_set_exception_ports (not exposed by mach2 crate)
unsafe extern "C" {
fn task_set_exception_ports(
task: task_t,
exception_mask: exception_mask_t,
new_port: mach_port_t,
behavior: exception_behavior_t,
new_flavor: thread_state_flavor_t,
) -> kern_return_t;
}
unsafe {
let task = mach_task_self();
// Reset all exception ports to MACH_PORT_NULL (system default)
// This prevents the child process from inheriting the parent's crash handler
let kr = task_set_exception_ports(
task,
EXC_MASK_ALL,
MACH_PORT_NULL,
EXCEPTION_DEFAULT as exception_behavior_t,
THREAD_STATE_NONE,
);
if kr != KERN_SUCCESS {
// Log but don't fail - the process can still work without this workaround
eprintln!(
"Warning: failed to reset exception ports in child process (kern_return: {})",
kr
);
}
}
}