GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.sbin/radiusd/radiusd_bsdauth/../imsg_subr.c Lines: 0 22 0.0 %
Date: 2017-11-13 Branches: 0 14 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: imsg_subr.c,v 1.1 2015/07/21 04:06:04 yasuoka Exp $	*/
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/*
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 * Copyright (c) 2015 YASUOKA Masahiko <yasuoka@yasuoka.net>
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <sys/uio.h>
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#include <imsg.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <poll.h>
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#include <errno.h>
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#include "imsg_subr.h"
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/*
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 * Check readability not to spin before calling imsg_read(3).  Wait 'millisec'
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 * until it becomes readable.
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 */
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int
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imsg_sync_read(struct imsgbuf *ibuf, int millisec)
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{
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	struct pollfd	 fds[1];
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	int		 retval;
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	fds[0].fd = ibuf->fd;
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	fds[0].events = POLLIN;
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	retval = poll(fds, 1, millisec);
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	if (retval == 0) {
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		errno = EAGAIN;
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		return (-1);
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	}
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	if (retval > 0 && (fds[0].revents & POLLIN) != 0)
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		return imsg_read(ibuf);
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	return (-1);
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}
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/*
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 * Check writability not to spin before calling imsg_flush(3).  Wait 'millisec'
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 * until it becomes writable.
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 */
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int
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imsg_sync_flush(struct imsgbuf *ibuf, int millisec)
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{
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	struct pollfd	 fds[1];
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	int		 retval;
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	if (!ibuf->w.queued)
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		return (0);	/* already flushed */
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	fds[0].fd = ibuf->fd;
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	fds[0].events = POLLOUT;
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	retval = poll(fds, 1, millisec);
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	if (retval == 0) {
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		errno = EAGAIN;
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		return (-1);
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	}
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	if (retval > 0 && (fds[0].revents & POLLOUT) != 0)
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		return imsg_flush(ibuf);
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	return (-1);
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}