1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include "apr_file_io.h"
20 APR_DECLARE(apr_status_t) apr_file_read_full(apr_file_t *thefile, void *buf,
22 apr_size_t *bytes_read)
25 apr_size_t total_read = 0;
28 apr_size_t amt = nbytes;
30 status = apr_file_read(thefile, buf, &amt);
31 buf = (char *)buf + amt;
34 } while (status == APR_SUCCESS && nbytes > 0);
36 if (bytes_read != NULL)
37 *bytes_read = total_read;
42 APR_DECLARE(apr_status_t) apr_file_write_full(apr_file_t *thefile,
45 apr_size_t *bytes_written)
48 apr_size_t total_written = 0;
51 apr_size_t amt = nbytes;
53 status = apr_file_write(thefile, buf, &amt);
54 buf = (char *)buf + amt;
57 } while (status == APR_SUCCESS && nbytes > 0);
59 if (bytes_written != NULL)
60 *bytes_written = total_written;
65 APR_DECLARE(apr_status_t) apr_file_writev_full(apr_file_t *thefile,
66 const struct iovec *vec,
68 apr_size_t *bytes_written)
70 apr_status_t rv = APR_SUCCESS;
75 for (i = 0; i < nvec; i++) {
76 total += vec[i].iov_len;
79 rv = apr_file_writev(thefile, vec, nvec, &amt);
81 if (bytes_written != NULL)
84 if (rv != APR_SUCCESS || (amt == total)) {
88 for (i = 0; i < nvec && amt; i++) {
89 if (amt >= vec[i].iov_len) {
90 amt -= vec[i].iov_len;
98 rv = apr_file_write_full(thefile, (const char *)vec[i].iov_base + amt,
99 vec[i].iov_len - amt, NULL);
102 for (; i < nvec && rv == APR_SUCCESS; i++) {
103 rv = apr_file_write_full(thefile, vec[i].iov_base,
104 vec[i].iov_len, &amt);
107 if (bytes_written != NULL)
108 *bytes_written = total;