2013-04-22 18:30:08 +02:00
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/*
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* Copyright (C) 2009-2011 Thomas Preud'homme <thomas.preud-homme@lip6.fr>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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2009-06-18 14:48:07 +02:00
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#ifndef _SPECIFIC_COMM_H_
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#define _SPECIFIC_COMM_H_ 1
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2009-06-10 09:58:50 +02:00
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#include <unistd.h>
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#define READ_IDX 0
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#define WRITE_IDX 1
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2011-04-11 16:18:49 +02:00
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struct channel
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2009-06-10 09:58:50 +02:00
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{
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2010-09-22 18:15:57 +02:00
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int pipefd[2];
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2009-06-10 09:58:50 +02:00
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};
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__BEGIN_DECLS
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2011-04-11 16:18:49 +02:00
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static inline void send(struct channel *channel, void **addr)
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2010-09-22 18:15:57 +02:00
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{
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2011-05-10 13:43:55 +02:00
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unsigned int nb_read;
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2010-09-22 18:15:57 +02:00
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void *addr_ptr;
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nb_read = 0;
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addr_ptr = &addr;
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do
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{
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int n;
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2011-04-11 16:18:49 +02:00
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n = write(channel->pipefd[WRITE_IDX], addr_ptr, sizeof(void *) - nb_read);
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2010-09-22 18:15:57 +02:00
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if (n > 0)
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{
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nb_read += n;
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addr_ptr = (void *) ((uintptr_t) addr_ptr + n);
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}
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} while (nb_read < sizeof(void *));
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2009-06-10 09:58:50 +02:00
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}
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__END_DECLS
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#endif
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