41 lines
1.6 KiB
C
41 lines
1.6 KiB
C
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/*
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*
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*/
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#ifdef AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
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// these optimized calls are implemented in stdclib and declared in sys/ev.h on 10.5 and later for better performance.
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/*
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int watchevent(struct eventreq *u_req, int u_eventmask);
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int waitevent(struct eventreq *u_req, struct timeval *tv);
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int modwatch(struct eventreq *u_req, int u_eventmask);
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*/
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#else
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// use syscall for the performance calls.
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#define watchevent(a,b) syscall(231,(a),(b))
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#define waitevent(a,b) syscall(232,(a),(b))
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#define modwatch(a,b) syscall(233,(a),(b))
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#endif //AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER
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