scoutos / prex-0.9.0 / usr / lib / posix / gen / __posix_call.c @ 03e9c04a
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/*
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* Copyright (c) 2007, Kohsuke Ohtani
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* All rights reserved.
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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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* 3. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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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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#include <sys/prex.h> |
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#include <ipc/ipc.h> |
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#include <errno.h> |
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/*
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* Send a message to POSIX server.
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*
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* Set errno as status.
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* If 'restart' is set to true, this function will try to send the
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* message again even if is is interrupted by a signal.
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*/
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int
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__posix_call(object_t obj, void *msg, size_t size, int restart) |
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{ |
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int error;
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if (obj == 0) { |
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errno = ENOSYS; |
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return -1; |
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} |
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do {
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error = msg_send(obj, msg, size); |
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} while (error == EINTR && restart);
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if (error) {
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errno = (error == EINTR) ? EINTR : ENOSYS; |
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return -1; |
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} else if (((struct msg_header *)msg)->status) { |
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errno = ((struct msg_header *)msg)->status;
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return -1; |
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} else {
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/* DO NOTHING */
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} |
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return 0; |
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} |