From a175b29095e2f5d33af9072fb2225c7ace289259 Mon Sep 17 00:00:00 2001
From: short <>
Date: Tue, 25 Mar 2003 00:34:56 +0000
Subject: [PATCH] +libcaptive/halcaptive/queuedspinlock.c  -
 +KeAcquireQueuedSpinLock()  - +KeReleaseQueuedSpinLock()

---
 src/libcaptive/halcaptive/queuedspinlock.c | 79 ++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 src/libcaptive/halcaptive/queuedspinlock.c

diff --git a/src/libcaptive/halcaptive/queuedspinlock.c b/src/libcaptive/halcaptive/queuedspinlock.c
new file mode 100644
index 0000000..7168d5c
--- /dev/null
+++ b/src/libcaptive/halcaptive/queuedspinlock.c
@@ -0,0 +1,79 @@
+/* $Id$
+ * reactos queued spinlock emulation of libcaptive
+ * Copyright (C) 2003 Jan Kratochvil <project-captive@jankratochvil.net>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; exactly version 2 of June 1991 is required
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include "config.h"
+
+/* no reactos prototype for KeAcquireQueuedSpinLock() and KeReleaseQueuedSpinLock() */
+#include "reactos/ddk/types.h"	/* for KIRQL */
+#include "reactos/ddk/kefuncs.h"	/* for KeGetCurrentIrql() */
+
+
+typedef enum _KSPIN_LOCK_QUEUE_NUMBER {
+	LockQueueDispatcherLock,
+	LockQueueContextSwapLock,
+	LockQueuePfnLock,
+	LockQueueSystemSpaceLock,
+	LockQueueVacbLock,
+	LockQueueMasterLock,
+	LockQueueNonPagedPoolLock,
+	LockQueueIoCancelLock,
+	LockQueueWorkQueueLock,
+	LockQueueIoVpbLock,
+	LockQueueIoDatabaseLock,
+	LockQueueIoCompletionLock,
+	LockQueueNtfsStructLock,
+	LockQueueAfdWorkQueueLock,
+	LockQueueBcbLock,
+	LockQueueMaximumLock
+	} KSPIN_LOCK_QUEUE_NUMBER, *PKSPIN_LOCK_QUEUE_NUMBER;
+
+
+/**
+ * KeAcquireQueuedSpinLock:
+ * @Number: Identification number of queued spinlock to acquire.
+ *
+ * Acquires a queued spinlock identified by @Number.
+ * Currently libcaptive doesn't use multithreading
+ * and thus this function is a NOP now. #GMutex would be needed otherwise.
+ *
+ * See http://www.compuware.co.jp/drivercentral/resources/spinlocks.asp
+ *
+ * Returns: IRQ level before this call. FIXME: What is expected in real? No W32 doc...
+ */
+KIRQL KeAcquireQueuedSpinLock(IN KSPIN_LOCK_QUEUE_NUMBER Number)
+{
+	/* TODO:thread */
+
+	return KeGetCurrentIrql();
+}
+
+
+/**
+ * KeReleaseQueuedSpinLock:
+ * @Number: Identification number of queued spinlock to release.
+ * @OldIrql: Original IRQ level before KeAcquireQueuedSpinLock().
+ *
+ * Releases a queued spinlock acquired by KeAcquireQueuedSpinLock().
+ * Currently libcaptive doesn't use multithreading
+ * and thus this function is a NOP now. #GMutex would be needed otherwise.
+ */
+VOID KeReleaseQueuedSpinLock(IN KSPIN_LOCK_QUEUE_NUMBER Number,IN KIRQL OldIrql)
+{
+	/* TODO:thread */
+}
-- 
1.8.3.1