/***
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*
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* include/rtnet_rtpc.h
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*
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* RTnet - real-time networking subsystem
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*
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* Copyright (C) 2003, 2004 Jan Kiszka <jan.kiszka@web.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#ifndef __RTNET_RTPC_H_
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#define __RTNET_RTPC_H_
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#include <linux/init.h>
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#include <rtnet_internal.h>
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struct rt_proc_call;
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typedef int (*rtpc_proc)(struct rt_proc_call *call);
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typedef void (*rtpc_copy_back_proc)(struct rt_proc_call *call, void *priv_data);
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typedef void (*rtpc_cleanup_proc)(void *priv_data);
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struct rt_proc_call {
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struct list_head list_entry;
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int processed;
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rtpc_proc proc;
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int result;
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atomic_t ref_count;
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wait_queue_head_t call_wq;
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rtpc_cleanup_proc cleanup_handler;
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char priv_data[0] __attribute__((aligned(8)));
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};
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#define CALL_PENDING 1000 /* result value for blocked calls */
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int rtnet_rtpc_dispatch_call(rtpc_proc rt_proc, unsigned int timeout,
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void *priv_data, size_t priv_data_size,
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rtpc_copy_back_proc copy_back_handler,
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rtpc_cleanup_proc cleanup_handler);
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void rtnet_rtpc_complete_call(struct rt_proc_call *call, int result);
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void rtnet_rtpc_complete_call_nrt(struct rt_proc_call *call, int result);
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#define rtpc_dispatch_call rtnet_rtpc_dispatch_call
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#define rtpc_complete_call rtnet_rtpc_complete_call
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#define rtpc_complete_call_nrt rtnet_rtpc_complete_call_nrt
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#define rtpc_get_priv(call, type) (type *)(call->priv_data)
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#define rtpc_get_result(call) call->result
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#define rtpc_set_result(call, new_result) call->result = new_result
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#define rtpc_set_cleanup_handler(call, handler) call->cleanup_handler = handler;
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int __init rtpc_init(void);
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void rtpc_cleanup(void);
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#endif /* __RTNET_RTPC_H_ */
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