Import my recent 1:1 threading working. some features improved includes:

 1. fast simple type mutex.
 2. __thread tls works.
 3. asynchronous cancellation works ( using signal ).
 4. thread synchronization is fully based on umtx, mainly, condition
    variable and other synchronization objects were rewritten by using
    umtx directly. those objects can be shared between processes via
    shared memory, it has to change ABI which does not happen yet.
 5. default stack size is increased to 1M on 32 bits platform, 2M for
    64 bits platform.
As the result, some mysql super-smack benchmarks show performance is
improved massivly.

Okayed by: jeff, mtm, rwatson, scottl

1 files changed, 0 insertions, 91 deletions

diff --git a/lib/libthr/thread/thr_subr.c b/lib/libthr/thread/thr_subr.c
deleted file mode 100644
index c777d17..0000000
--- a/lib/libthr/thread/thr_subr.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*-
- * Copyright (c) 2003 Michael Telahun Makonnen
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	Problems/Questions to: Mike Makonnen <mtm@FreeBSD.Org>
- *
- * $FreeBSD$
- */
-
-#include <stdlib.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/param.h>
-#include <sys/queue.h>
-#include <pthread.h>
-
-#include "thr_private.h"
-
-/*
- * Lock for the process global signal actions list.
- * This lock does NOT insure up-to-date-ness, only integrity.
- */
-struct umtx sigactList_lock = UMTX_INITIALIZER;
-
-/*
- * proc_sigact_copyin(sig, actp)
- *	Copy the contents of actp into the process global
- *	action for signal sig.
- */
-void
-proc_sigact_copyin(int sig, const struct sigaction *actp)
-{
-	UMTX_LOCK(&sigactList_lock);
-	bcopy((const void *)actp, (void *)&_thread_sigact[sig - 1],
-	    sizeof(struct sigaction));
-	UMTX_UNLOCK(&sigactList_lock);
-}
-
-/*
- * proc_sigact_copyout(sig, sigact)
- *	Copy the contents of the process global action for
- *	signal sig into sigact.
- */
-void
-proc_sigact_copyout(int sig, struct sigaction *actp)
-{
-	UMTX_LOCK(&sigactList_lock);
-	bcopy((const void *)&_thread_sigact[sig - 1], (void *)actp,
-	    sizeof(struct sigaction));
-	UMTX_UNLOCK(&sigactList_lock);
-}
-
-/*
- * proc_sigact_sigaction(sig)
- *	Obtains the struct sigaction associated with signal sig.
- *	The address of the structure is the return value. It is
- *	upto the caller to check the value of the structure at
- *	that address against SIG_IGN and SIG_DFL before trying
- *	to dereference it.
- */
-struct sigaction *
-proc_sigact_sigaction(int sig)
-{
-	struct sigaction *actp;
-
-	UMTX_LOCK(&sigactList_lock);
-	actp = &_thread_sigact[sig - 1];
-	UMTX_UNLOCK(&sigactList_lock);
-	return (actp);
-}