15b1eb142c
CPU, also add protection against invalid CPU's as well as
split c_flags and c_iflags so that if a user plays with the active
flag (the one expected to be played with by callers in MPSAFE) without
a lock, it won't adversely affect the callout system by causing a corrupt
list. This also means that all callers need to use the macros and *not*
play with the falgs directly (like netgraph used to).
Differential Revision: htts://reviews.freebsd.org/D1894
Reviewed by: .. timed out but looked at by jhb, imp, adrian hselasky
tested by hiren and netflix.
Sponsored by: Netflix Inc.
149 lines
4.6 KiB
C
149 lines
4.6 KiB
C
/*-
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* Copyright (c) 2001-2003
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* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
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* All rights reserved.
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*
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* Author: Hartmut Brandt <harti@freebsd.org>
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Customisation of signalling source to the NG environment.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/mbuf.h>
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#include <netgraph/ng_message.h>
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#include <netgraph/netgraph.h>
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#include <netgraph/atm/ngatmbase.h>
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#define ASSERT(E, M) KASSERT(E,M)
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/*
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* Memory
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*/
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enum unimem {
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UNIMEM_INS = 0,
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UNIMEM_ALL,
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UNIMEM_SIG,
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UNIMEM_CALL,
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UNIMEM_PARTY,
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};
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#define UNIMEM_TYPES 5
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void *ng_uni_malloc(enum unimem, const char *, u_int);
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void ng_uni_free(enum unimem, void *, const char *, u_int);
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#define INS_ALLOC() ng_uni_malloc(UNIMEM_INS, __FILE__, __LINE__)
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#define INS_FREE(P) ng_uni_free(UNIMEM_INS, P, __FILE__, __LINE__)
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#define UNI_ALLOC() ng_uni_malloc(UNIMEM_ALL, __FILE__, __LINE__)
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#define UNI_FREE(P) ng_uni_free(UNIMEM_ALL, P, __FILE__, __LINE__)
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#define SIG_ALLOC() ng_uni_malloc(UNIMEM_SIG, __FILE__, __LINE__)
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#define SIG_FREE(P) ng_uni_free(UNIMEM_SIG, P, __FILE__, __LINE__)
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#define CALL_ALLOC() ng_uni_malloc(UNIMEM_CALL, __FILE__, __LINE__)
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#define CALL_FREE(P) ng_uni_free(UNIMEM_CALL, P, __FILE__, __LINE__)
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#define PARTY_ALLOC() ng_uni_malloc(UNIMEM_PARTY, __FILE__, __LINE__)
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#define PARTY_FREE(P) ng_uni_free(UNIMEM_PARTY, P, __FILE__, __LINE__)
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/*
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* Timers
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*/
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struct uni_timer {
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struct callout c;
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};
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#define _TIMER_INIT(X,T) ng_callout_init(&(X)->T.c)
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#define _TIMER_DESTROY(UNI,FIELD) _TIMER_STOP(UNI,FIELD)
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#define _TIMER_STOP(UNI,FIELD) do { \
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ng_uncallout(&FIELD.c, (UNI)->arg); \
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} while (0)
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#define TIMER_ISACT(UNI,T) (callout_active(&(UNI)->T.c) || \
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callout_pending(&(UNI)->T.c))
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#define _TIMER_START(UNI,ARG,FIELD,DUE,FUNC) do { \
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_TIMER_STOP(UNI, FIELD); \
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ng_callout(&FIELD.c, (UNI)->arg, NULL, \
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hz * (DUE) / 1000, FUNC, (ARG), 0); \
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} while (0)
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#define TIMER_FUNC_UNI(T,F) \
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static void F(struct uni *); \
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static void \
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_##T##_func(node_p node, hook_p hook, void *arg1, int arg2) \
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{ \
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struct uni *uni = (struct uni *)arg1; \
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\
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(F)(uni); \
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uni_work(uni); \
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}
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/*
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* Be careful: call may be invalid after the call to F
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*/
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#define TIMER_FUNC_CALL(T,F) \
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static void F(struct call *); \
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static void \
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_##T##_func(node_p node, hook_p hook, void *arg1, int arg2) \
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{ \
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struct call *call = (struct call *)arg1; \
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struct uni *uni = call->uni; \
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\
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(F)(call); \
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uni_work(uni); \
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}
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/*
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* Be careful: call/party may be invalid after the call to F
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*/
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#define TIMER_FUNC_PARTY(T,F) \
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static void F(struct party *); \
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static void \
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_##T##_func(node_p node, hook_p hook, void *arg1, int arg2) \
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{ \
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struct party *party = (struct party *)arg1; \
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struct uni *uni = party->call->uni; \
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\
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(F)(party); \
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uni_work(uni); \
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}
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extern size_t unimem_sizes[UNIMEM_TYPES];
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#define UNICORE \
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size_t unimem_sizes[UNIMEM_TYPES] = { \
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[UNIMEM_INS] = sizeof(struct uni), \
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[UNIMEM_ALL] = sizeof(struct uni_all), \
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[UNIMEM_SIG] = sizeof(struct sig), \
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[UNIMEM_CALL] = sizeof(struct call), \
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[UNIMEM_PARTY] = sizeof(struct party) \
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};
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