6c8f7fc3ba
. add all sys/sys headers not already present to help compiling . take netbsd dirent.h and struct dirent; main result is introducing d_type and d_namlen that have to be set by getdents() in all FS code implementing it . d_off is gone . alignment of the struct has become 8 bytes instead of 4 . remove _MAX_BLOCK_SIZE, _MIN_BLOCK_SIZE, _STATIC_BLOCK_SIZE . libminlib: cleanup unused yet duplicate code . mfs: throw out the long-broken v1, v2 support . new test for dirent contents filled by getdents() Change-Id: I1459755c7ba5e5d1c9396d3a587ce6e63ddc283e
120 lines
4.1 KiB
C
120 lines
4.1 KiB
C
/* $NetBSD: callout.h,v 1.31 2008/04/28 20:24:10 martin Exp $ */
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/*-
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* Copyright (c) 2000, 2003, 2006, 2007, 2008 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, and by Andrew Doran.
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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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*
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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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#ifndef _SYS_CALLOUT_H_
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#define _SYS_CALLOUT_H_
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#include <sys/types.h>
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/*
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* The callout implementation is private to kern_timeout.c yet uses
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* caller-supplied storage, as lightweight callout operations are
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* critical to system performance.
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*
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* The size of callout_t must remain constant in order to ensure ABI
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* compatibility for kernel modules: it may become smaller, but must
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* not grow. If more space is required, rearrange the members of
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* callout_impl_t.
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*/
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typedef struct callout {
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void *_c_store[10];
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} callout_t;
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/* Internal flags. */
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#define CALLOUT_BOUND 0x0001 /* bound to a specific CPU */
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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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/* End-user flags. */
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#define CALLOUT_MPSAFE 0x0100 /* does not need kernel_lock */
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#define CALLOUT_FLAGMASK 0xff00
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#ifdef _CALLOUT_PRIVATE
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/* The following funkyness is to appease gcc3's strict aliasing. */
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struct callout_circq {
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/* next element */
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union {
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struct callout_impl *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_impl *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_cpu;
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typedef struct callout_impl {
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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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struct callout_cpu * volatile c_cpu; /* associated CPU */
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int c_time; /* when callout fires */
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u_int c_flags; /* state of this entry */
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u_int c_magic; /* magic number */
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} callout_impl_t;
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#define CALLOUT_MAGIC 0x11deeba1
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#endif /* _CALLOUT_PRIVATE */
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#ifdef _KERNEL
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struct cpu_info;
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void callout_startup(void);
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void callout_init_cpu(struct cpu_info *);
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void callout_hardclock(void);
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void callout_init(callout_t *, u_int);
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void callout_destroy(callout_t *);
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void callout_setfunc(callout_t *, void (*)(void *), void *);
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void callout_reset(callout_t *, int, void (*)(void *), void *);
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void callout_schedule(callout_t *, int);
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bool callout_stop(callout_t *);
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bool callout_halt(callout_t *, void *);
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bool callout_pending(callout_t *);
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bool callout_expired(callout_t *);
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bool callout_active(callout_t *);
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bool callout_invoking(callout_t *);
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void callout_ack(callout_t *);
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void callout_bind(callout_t *, struct cpu_info *);
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#endif /* _KERNEL */
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#endif /* !_SYS_CALLOUT_H_ */
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