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 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 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. 15 */ 16 17#include "apr_arch_file_io.h" 18 19APR_DECLARE(apr_status_t) apr_file_lock(apr_file_t *thefile, int type) 20{ 21 FILELOCK lockrange = { 0, 0x7fffffff }; 22 ULONG rc; 23 24 rc = DosSetFileLocks(thefile->filedes, NULL, &lockrange, 25 (type & APR_FLOCK_NONBLOCK) ? 0 : (ULONG)-1, 26 (type & APR_FLOCK_TYPEMASK) == APR_FLOCK_SHARED); 27 return APR_FROM_OS_ERROR(rc); 28} 29 30APR_DECLARE(apr_status_t) apr_file_unlock(apr_file_t *thefile) 31{ 32 FILELOCK unlockrange = { 0, 0x7fffffff }; 33 ULONG rc; 34 35 rc = DosSetFileLocks(thefile->filedes, &unlockrange, NULL, 0, 0); 36 return APR_FROM_OS_ERROR(rc); 37} 38