/*
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* Copyright (C) 2011 Philippe Gerum <rpm@xenomai.org>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#ifndef _XENOMAI_ALCHEMY_PIPE_H
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#define _XENOMAI_ALCHEMY_PIPE_H
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#include <stdint.h>
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#include <cobalt/uapi/kernel/pipe.h>
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#include <alchemy/timer.h>
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#include <alchemy/compat.h>
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/**
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* @addtogroup alchemy_pipe
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* @{
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*/
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/** Creation flags. */
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#define P_MINOR_AUTO XNPIPE_MINOR_AUTO
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/** Operation flags. */
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#define P_URGENT XNPIPE_URGENT
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#define P_NORMAL XNPIPE_NORMAL
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struct RT_PIPE {
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uintptr_t handle;
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};
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typedef struct RT_PIPE RT_PIPE;
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#ifdef __cplusplus
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extern "C" {
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#endif
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CURRENT_DECL(int, rt_pipe_create(RT_PIPE *pipe,
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const char *name,
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int minor, size_t poolsize));
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int rt_pipe_delete(RT_PIPE *pipe);
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ssize_t rt_pipe_read_timed(RT_PIPE *pipe,
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void *buf, size_t size,
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const struct timespec *abs_timeout);
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static inline
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ssize_t rt_pipe_read_until(RT_PIPE *pipe,
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void *buf, size_t size, RTIME timeout)
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{
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struct timespec ts;
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return rt_pipe_read_timed(pipe, buf, size,
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alchemy_abs_timeout(timeout, &ts));
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}
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ssize_t rt_pipe_read(RT_PIPE *pipe,
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void *buf, size_t size, RTIME timeout);
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ssize_t rt_pipe_write(RT_PIPE *pipe,
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const void *buf, size_t size, int mode);
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ssize_t rt_pipe_stream(RT_PIPE *pipe,
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const void *buf, size_t size);
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int rt_pipe_bind(RT_PIPE *pipe,
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const char *name, RTIME timeout);
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int rt_pipe_unbind(RT_PIPE *pipe);
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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#endif /* _XENOMAI_ALCHEMY_PIPE_H */
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