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/* Copyright 2000-2005 The Apache Software Foundation or its licensors, as
* applicable.
*
* Licensed 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_networkio.h"
#include "apr_errno.h"
#include "apr_general.h"
#include "apr_network_io.h"
#include "apr_lib.h"
#include <sys/time.h>
APR_DECLARE(apr_status_t) apr_socket_send(apr_socket_t *sock, const char *buf,
apr_size_t *len)
{
apr_ssize_t rv;
int fds, err = 0;
if (*len > 65536) {
*len = 65536;
}
do {
if (!sock->nonblock || err == SOCEWOULDBLOCK) {
fds = sock->socketdes;
rv = select(&fds, 0, 1, 0, sock->timeout >= 0 ? sock->timeout/1000 : -1);
if (rv != 1) {
*len = 0;
err = sock_errno();
if (rv == 0)
return APR_TIMEUP;
if (err == SOCEINTR)
continue;
return APR_OS2_STATUS(err);
}
}
rv = send(sock->socketdes, buf, (*len), 0);
err = rv < 0 ? sock_errno() : 0;
} while (err == SOCEINTR || err == SOCEWOULDBLOCK);
if (err) {
*len = 0;
return APR_OS2_STATUS(err);
}
(*len) = rv;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_socket_recv(apr_socket_t *sock, char *buf,
apr_size_t *len)
{
apr_ssize_t rv;
int fds, err = 0;
do {
if (!sock->nonblock || (err == SOCEWOULDBLOCK && sock->timeout != 0)) {
fds = sock->socketdes;
rv = select(&fds, 1, 0, 0, sock->timeout >= 0 ? sock->timeout/1000 : -1);
if (rv != 1) {
*len = 0;
err = sock_errno();
if (rv == 0)
return APR_TIMEUP;
if (err == SOCEINTR)
continue;
return APR_OS2_STATUS(err);
}
}
rv = recv(sock->socketdes, buf, (*len), 0);
err = rv < 0 ? sock_errno() : 0;
} while (err == SOCEINTR || (err == SOCEWOULDBLOCK && sock->timeout != 0));
if (err) {
*len = 0;
return APR_OS2_STATUS(err);
}
(*len) = rv;
return rv == 0 ? APR_EOF : APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_socket_sendv(apr_socket_t *sock,
const struct iovec *vec,
apr_int32_t nvec, apr_size_t *len)
{
apr_status_t rv;
struct iovec *tmpvec;
int fds, err = 0;
int nv_tosend, total = 0;
/* Make sure writev() only gets fed 64k at a time */
for ( nv_tosend = 0; nv_tosend < nvec && total + vec[nv_tosend].iov_len < 65536; nv_tosend++ ) {
total += vec[nv_tosend].iov_len;
}
tmpvec = alloca(sizeof(struct iovec) * nv_tosend);
memcpy(tmpvec, vec, sizeof(struct iovec) * nv_tosend);
do {
if (!sock->nonblock || err == SOCEWOULDBLOCK) {
fds = sock->socketdes;
rv = select(&fds, 0, 1, 0, sock->timeout >= 0 ? sock->timeout/1000 : -1);
if (rv != 1) {
*len = 0;
err = sock_errno();
if (rv == 0)
return APR_TIMEUP;
if (err == SOCEINTR)
continue;
return APR_OS2_STATUS(err);
}
}
rv = writev(sock->socketdes, tmpvec, nv_tosend);
err = rv < 0 ? sock_errno() : 0;
} while (err == SOCEINTR || err == SOCEWOULDBLOCK);
if (err) {
*len = 0;
return APR_OS2_STATUS(err);
}
*len = rv;
return APR_SUCCESS;
}
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