Initial commit.

git-svn-id: http://svn.telesphoreo.org/trunk@2 514c082c-b64e-11dc-b46d-3d985efe055d

1 files changed, 93 insertions, 0 deletions

diff --git a/data/kext-tools/getiopolicy_np.c b/data/kext-tools/getiopolicy_np.c
new file mode 100644
index 000000000..5a4c842fe
--- /dev/null
+++ b/data/kext-tools/getiopolicy_np.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+#include <errno.h>
+#include <sys/resource.h>
+
+extern int __iopolicysys(int, struct _iopol_param_t *);
+
+int
+getiopolicy_np(int iotype, int scope)
+{
+	int policy, error;
+	struct _iopol_param_t iop_param;
+
+	if (iotype != IOPOL_TYPE_DISK ||
+		(scope != IOPOL_SCOPE_PROCESS && scope != IOPOL_SCOPE_THREAD)) {
+		errno = EINVAL;
+		policy = -1;
+		goto exit;
+	}
+
+	iop_param.iop_scope = scope;
+	iop_param.iop_iotype = iotype;
+	error = syscall(322, IOPOL_CMD_GET, &iop_param);
+	if (error != 0) {
+		errno = error;
+		policy = -1;
+		goto exit;
+	}
+
+	policy = iop_param.iop_policy;
+
+  exit:
+	return policy;
+}
+
+int
+setiopolicy_np(int iotype, int scope, int policy)
+{
+	int error;
+	struct _iopol_param_t iop_param;
+	
+	if (iotype != IOPOL_TYPE_DISK ||
+		(scope != IOPOL_SCOPE_PROCESS && scope != IOPOL_SCOPE_THREAD)) {
+		errno = EINVAL;
+		error = -1;
+		goto exit;
+	}
+
+	switch (policy) {
+	case IOPOL_DEFAULT:
+	case IOPOL_NORMAL:
+	case IOPOL_THROTTLE:
+	case IOPOL_PASSIVE:
+		break;
+	default:
+		errno = EINVAL;
+		error = -1;
+		goto exit;
+	}
+
+	iop_param.iop_scope = scope;
+	iop_param.iop_iotype = iotype;
+	iop_param.iop_policy = policy;
+	error = syscall(322, IOPOL_CMD_SET, &iop_param);
+	if (error != 0) {
+		errno = error;
+		error = -1;
+		goto exit;
+	}
+
+  exit:
+	return error;
+}