2aa62f2bc9
This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc. AppPkg contains applications that make use of the standard libraries defined in the StdLib Package. StdLib contains header (include) files and the implementations of the standard libraries. StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib. These files should never be directly referenced from applications or other code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524
132 lines
5.5 KiB
C
132 lines
5.5 KiB
C
/* $NetBSD: callout.h,v 1.22 2005/12/11 12:25:20 christos Exp $ */
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/*-
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* Copyright (c) 2000, 2003 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 2000-2001 Artur Grabowski <art@openbsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SYS_CALLOUT_H_
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#define _SYS_CALLOUT_H_
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/*
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* The following funkyness is to appease gcc3's strict aliasing.
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*/
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struct callout;
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struct callout_circq {
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/* next element */
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union {
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struct callout *elem;
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struct callout_circq *list;
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} cq_next;
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/* previous element */
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union {
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struct callout *elem;
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struct callout_circq *list;
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} cq_prev;
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};
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#define cq_next_e cq_next.elem
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#define cq_prev_e cq_prev.elem
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#define cq_next_l cq_next.list
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#define cq_prev_l cq_prev.list
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struct callout {
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struct callout_circq c_list; /* linkage on queue */
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void (*c_func)(void *); /* function to call */
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void *c_arg; /* function argument */
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int c_time; /* when callout fires */
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int c_flags; /* state of this entry */
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};
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#define CALLOUT_PENDING 0x0002 /* callout is on the queue */
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#define CALLOUT_FIRED 0x0004 /* callout has fired */
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#define CALLOUT_INVOKING 0x0008 /* callout function is being invoked */
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#define CALLOUT_INITIALIZER_SETFUNC(func, arg) \
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{ {{NULL}, {NULL}}, func, arg, 0, 0 }
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#define CALLOUT_INITIALIZER CALLOUT_INITIALIZER_SETFUNC(NULL, NULL)
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#ifdef _KERNEL
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void callout_startup(void);
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void callout_init(struct callout *);
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void callout_setfunc(struct callout *, void (*)(void *), void *);
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void callout_reset(struct callout *, int, void (*)(void *), void *);
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void callout_schedule(struct callout *, int);
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void callout_stop(struct callout *);
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int callout_hardclock(void);
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#define callout_setfunc(c, f, a) \
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do { \
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(c)->c_func = (f); \
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(c)->c_arg = (a); \
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} while (/*CONSTCOND*/0)
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#define callout_pending(c) ((c)->c_flags & CALLOUT_PENDING)
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#define callout_expired(c) ((c)->c_flags & CALLOUT_FIRED)
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#define callout_active(c) ((c)->c_flags & (CALLOUT_PENDING|CALLOUT_FIRED))
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#define callout_invoking(c) ((c)->c_flags & CALLOUT_INVOKING)
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#define callout_ack(c) ((c)->c_flags &= ~CALLOUT_INVOKING)
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#endif /* _KERNEL */
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#endif /* !_SYS_CALLOUT_H_ */
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