From 2e69ebf6999102c27c21615b610400a0d922e8c9 Mon Sep 17 00:00:00 2001
From: Agustina Arzille <avarzille@riseup.net>
Date: Mon, 4 Apr 2016 19:16:31 -0300
Subject: Lightweight synchronization mechanism

* Makefrag.am (libkernel_a_SOURCES): Add kern/gsync.c and kern/gsync.h.
* include/mach/gnumach.defs (gsync_wait, gsync_wake, gsync_requeue): New
routines.
* include/mach/kern_return.h (KERN_TIMEDOUT, KERN_INTERRUPTED): New error
codes.
* kern/gsync.c: New file.
* kern/gsync.h: New file.
* kern/startup.c: Include <kern/gsync.h>
(setup_main): Call gsync_setup.
---
 kern/startup.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'kern/startup.c')

diff --git a/kern/startup.c b/kern/startup.c
index bd296943..c87cbb10 100644
--- a/kern/startup.c
+++ b/kern/startup.c
@@ -36,6 +36,7 @@
 #include <ipc/ipc_init.h>
 #include <kern/cpu_number.h>
 #include <kern/debug.h>
+#include <kern/gsync.h>
 #include <kern/machine.h>
 #include <kern/mach_factor.h>
 #include <kern/mach_clock.h>
@@ -158,6 +159,8 @@ void setup_main(void)
 	recompute_priorities(NULL);
 	compute_mach_factor();
 
+	gsync_setup ();
+
 	/*
 	 *	Create a kernel thread to start the other kernel
 	 *	threads.  Thread_resume (from kernel_thread) calls
-- 
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