From faa67f2d8565107fab44d4c5ae9fa1b0b3d19b29 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Jan 07 2017 16:41:13 +0000
Subject: process initialization: swap threads cleanly.


---

diff --git a/src/ptycon.c b/src/ptycon.c
index 5caa104..323ab51 100644
--- a/src/ptycon.c
+++ b/src/ptycon.c
@@ -122,14 +122,15 @@ static int32_t ptycon_start(int argc, char ** argv, char ** envp)
 	return ptyc_main(argc,argv,envp);
 }
 
-static int __stdcall ptycon_daemon_entry_point(void * arg)
+static int __stdcall ptycon_daemon_entry_point(void * hswap)
 {
 	int32_t		status;
 	int		argc;
 	char **		argv;
 	char **		envp;
 
-	(void)arg;
+	ntapi->zw_set_event(hswap,0);
+	ntapi->zw_close(hswap);
 
 	if ((status = ntapi->tt_get_argv_envp_utf8(
 			&argc,&argv,&envp,
@@ -146,15 +147,23 @@ int ptycon_entry_point(void)
 {
 	int32_t			status;
 	nt_thread_params	params;
+	void *			hswap;
 
 	if ((status = ptyc_init()))
 		return status;
 
+	if ((status = ntapi->tt_create_private_event(
+			&hswap,
+			NT_NOTIFICATION_EVENT,
+			NT_EVENT_NOT_SIGNALED)))
+		return status;
+
 	ntapi->tt_aligned_block_memset(
 		&params,0,sizeof(params));
 
 	params.hprocess		  = NT_CURRENT_PROCESS_HANDLE;
 	params.start		  = ptycon_daemon_entry_point;
+	params.arg                = hswap;
 	params.stack_size_commit  = 128 * 1024;
 	params.stack_size_reserve = 128 * 1024;
 	params.creation_flags	  = NT_CREATE_LOCAL_THREAD;
@@ -162,6 +171,9 @@ int ptycon_entry_point(void)
 	if ((status = ntapi->tt_create_thread(&params)))
 		ptycon_exit(status);
 
+	ntapi->zw_wait_for_single_object(
+		hswap,NT_SYNC_NON_ALERTABLE,0);
+
 	ntapi->zw_close(
 		params.hthread);