Security-57336.1.9.tar.gz

[apple/security.git] / OSX / include / securityd_client / SharedMemoryCommon.h

/*
 * Copyright (c) 2011,2014 Apple 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.
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#ifndef __SHARED_MEMORY_COMMON__
#define __SHARED_MEMORY_COMMON__



#include <sys/types.h>

const unsigned kSegmentSize = 4096;
const unsigned kNumberOfSegments = 8;
const unsigned kSharedMemoryPoolSize = kSegmentSize * kNumberOfSegments;

const unsigned kBytesWrittenOffset = 0;
const unsigned kBytesWrittenLength = 4;
const unsigned kPoolAvailableForData = kSharedMemoryPoolSize - kBytesWrittenLength;

typedef u_int32_t SegmentOffsetType;

#define SECURITY_MESSAGES_NAME "SecurityMessages"

#endif