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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apr_arch_file_io.h"
#include "apr_arch_networkio.h"
#include "apr_poll.h"
#include "apr_errno.h"
#include "apr_support.h"
/* The only case where we don't use wait_for_io_or_timeout is on
* pre-BONE BeOS, so this check should be sufficient and simpler */
#if !BEOS_R5
#define USE_WAIT_FOR_IO
#endif
#ifdef USE_WAIT_FOR_IO
apr_status_t apr_wait_for_io_or_timeout(apr_file_t *f, apr_socket_t *s,
int for_read)
{
apr_interval_time_t timeout;
apr_pollfd_t pollset;
int srv, n;
int type = for_read ? APR_POLLIN : APR_POLLOUT;
/* TODO - timeout should be less each time through this loop */
if (f) {
pollset.desc_type = APR_POLL_FILE;
pollset.desc.f = f;
pollset.p = f->pool;
timeout = f->timeout;
}
else {
pollset.desc_type = APR_POLL_SOCKET;
pollset.desc.s = s;
pollset.p = s->cntxt;
timeout = s->timeout;
}
pollset.reqevents = type;
do {
srv = apr_poll(&pollset, 1, &n, timeout);
if (n == 1 && pollset.rtnevents & type) {
return APR_SUCCESS;
}
} while (APR_STATUS_IS_EINTR(srv));
return srv;
}
#endif
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