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/* Copyright 2000-2005 The Apache Software Foundation or its licensors, as
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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#include "apr_arch_networkio.h"
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APR_DECLARE(apr_status_t) apr_poll(apr_pollfd_t *aprset, apr_int32_t num,
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apr_int32_t *nsds, apr_interval_time_t timeout)
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int num_read = 0, num_write = 0, num_except = 0, num_total;
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int pos_read, pos_write, pos_except;
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for (i = 0; i < num; i++) {
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if (aprset[i].desc_type == APR_POLL_SOCKET) {
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num_read += (aprset[i].reqevents & APR_POLLIN) != 0;
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num_write += (aprset[i].reqevents & APR_POLLOUT) != 0;
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num_except += (aprset[i].reqevents & APR_POLLPRI) != 0;
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num_total = num_read + num_write + num_except;
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pollset = alloca(sizeof(int) * num_total);
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memset(pollset, 0, sizeof(int) * num_total);
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pos_except = pos_write + num_write;
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for (i = 0; i < num; i++) {
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if (aprset[i].desc_type == APR_POLL_SOCKET) {
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if (aprset[i].reqevents & APR_POLLIN) {
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pollset[pos_read++] = aprset[i].desc.s->socketdes;
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if (aprset[i].reqevents & APR_POLLOUT) {
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pollset[pos_write++] = aprset[i].desc.s->socketdes;
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if (aprset[i].reqevents & APR_POLLPRI) {
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pollset[pos_except++] = aprset[i].desc.s->socketdes;
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aprset[i].rtnevents = 0;
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timeout /= 1000; /* convert microseconds to milliseconds */
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i = select(pollset, num_read, num_write, num_except, timeout);
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return APR_FROM_OS_ERROR(sock_errno());
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pos_except = pos_write + num_write;
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for (i = 0; i < num; i++) {
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if (aprset[i].desc_type == APR_POLL_SOCKET) {
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if (aprset[i].reqevents & APR_POLLIN) {
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if (pollset[pos_read++] > 0) {
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aprset[i].rtnevents |= APR_POLLIN;
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if (aprset[i].reqevents & APR_POLLOUT) {
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if (pollset[pos_write++] > 0) {
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aprset[i].rtnevents |= APR_POLLOUT;
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if (aprset[i].reqevents & APR_POLLPRI) {
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if (pollset[pos_except++] > 0) {
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aprset[i].rtnevents |= APR_POLLPRI;