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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 <qpid/dispatch/iovec.h>
#include <qpid/dispatch/alloc.h>
#include <string.h>
#define DX_IOVEC_MAX 64
struct dx_iovec_t {
struct iovec iov_array[DX_IOVEC_MAX];
struct iovec *iov;
int iov_count;
};
ALLOC_DECLARE(dx_iovec_t);
ALLOC_DEFINE(dx_iovec_t);
dx_iovec_t *dx_iovec(int vector_count)
{
dx_iovec_t *iov = new_dx_iovec_t();
if (!iov)
return 0;
memset(iov, 0, sizeof(dx_iovec_t));
iov->iov_count = vector_count;
if (vector_count > DX_IOVEC_MAX)
iov->iov = (struct iovec*) malloc(sizeof(struct iovec) * vector_count);
else
iov->iov = &iov->iov_array[0];
return iov;
}
void dx_iovec_free(dx_iovec_t *iov)
{
if (!iov)
return;
if (iov->iov && iov->iov != &iov->iov_array[0])
free(iov->iov);
free_dx_iovec_t(iov);
}
struct iovec *dx_iovec_array(dx_iovec_t *iov)
{
if (!iov)
return 0;
return iov->iov;
}
int dx_iovec_count(dx_iovec_t *iov)
{
if (!iov)
return 0;
return iov->iov_count;
}
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