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-rw-r--r--file_io/os2/filedup.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/file_io/os2/filedup.c b/file_io/os2/filedup.c
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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_file_io.h"
+#include "apr_lib.h"
+#include "apr_strings.h"
+#include <string.h>
+#include "apr_arch_inherit.h"
+
+static apr_status_t file_dup(apr_file_t **new_file, apr_file_t *old_file, apr_pool_t *p)
+{
+ int rv;
+ apr_file_t *dup_file;
+
+ if (*new_file == NULL) {
+ dup_file = (apr_file_t *)apr_palloc(p, sizeof(apr_file_t));
+
+ if (dup_file == NULL) {
+ return APR_ENOMEM;
+ }
+
+ dup_file->filedes = -1;
+ } else {
+ dup_file = *new_file;
+ }
+
+ dup_file->pool = p;
+ rv = DosDupHandle(old_file->filedes, &dup_file->filedes);
+
+ if (rv) {
+ return APR_FROM_OS_ERROR(rv);
+ }
+
+ dup_file->fname = apr_pstrdup(dup_file->pool, old_file->fname);
+ dup_file->buffered = old_file->buffered;
+ dup_file->isopen = old_file->isopen;
+ dup_file->flags = old_file->flags & ~APR_INHERIT;
+ /* TODO - dup pipes correctly */
+ dup_file->pipe = old_file->pipe;
+
+ if (*new_file == NULL) {
+ apr_pool_cleanup_register(dup_file->pool, dup_file, apr_file_cleanup,
+ apr_pool_cleanup_null);
+ *new_file = dup_file;
+ }
+
+ return APR_SUCCESS;
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_file_dup(apr_file_t **new_file, apr_file_t *old_file, apr_pool_t *p)
+{
+ if (*new_file) {
+ apr_file_close(*new_file);
+ (*new_file)->filedes = -1;
+ }
+
+ return file_dup(new_file, old_file, p);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_file_dup2(apr_file_t *new_file, apr_file_t *old_file, apr_pool_t *p)
+{
+ return file_dup(&new_file, old_file, p);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_file_setaside(apr_file_t **new_file,
+ apr_file_t *old_file,
+ apr_pool_t *p)
+{
+ *new_file = (apr_file_t *)apr_pmemdup(p, old_file, sizeof(apr_file_t));
+ (*new_file)->pool = p;
+
+ if (old_file->buffered) {
+ (*new_file)->buffer = apr_palloc(p, old_file->bufsize);
+ (*new_file)->bufsize = old_file->bufsize;
+
+ if (old_file->direction == 1) {
+ memcpy((*new_file)->buffer, old_file->buffer, old_file->bufpos);
+ }
+ else {
+ memcpy((*new_file)->buffer, old_file->buffer, old_file->dataRead);
+ }
+
+ if (old_file->mutex) {
+ apr_thread_mutex_create(&((*new_file)->mutex),
+ APR_THREAD_MUTEX_DEFAULT, p);
+ apr_thread_mutex_destroy(old_file->mutex);
+ }
+ }
+
+ if (old_file->fname) {
+ (*new_file)->fname = apr_pstrdup(p, old_file->fname);
+ }
+
+ if (!(old_file->flags & APR_FOPEN_NOCLEANUP)) {
+ apr_pool_cleanup_kill(old_file->pool, (void *)old_file,
+ apr_file_cleanup);
+ apr_pool_cleanup_register(p, (void *)(*new_file),
+ apr_file_cleanup,
+ apr_file_cleanup);
+ }
+
+ old_file->filedes = -1;
+ return APR_SUCCESS;
+}