apr_arch_inherit.h revision 251886
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#ifndef INHERIT_H 18#define INHERIT_H 19 20#include "apr_inherit.h" 21 22#define APR_INHERIT (1 << 24) /* Must not conflict with other bits */ 23 24#define APR_IMPLEMENT_INHERIT_SET(name, flag, pool, cleanup) \ 25apr_status_t apr_##name##_inherit_set(apr_##name##_t *the##name) \ 26{ \ 27 if (the##name->flag & APR_FOPEN_NOCLEANUP) \ 28 return APR_EINVAL; \ 29 if (!(the##name->flag & APR_INHERIT)) { \ 30 int flags = fcntl(the##name->name##des, F_GETFD); \ 31 if (flags == -1) \ 32 return errno; \ 33 flags &= ~(FD_CLOEXEC); \ 34 if (fcntl(the##name->name##des, F_SETFD, flags) == -1) \ 35 return errno; \ 36 the##name->flag |= APR_INHERIT; \ 37 apr_pool_child_cleanup_set(the##name->pool, \ 38 (void *)the##name, \ 39 cleanup, apr_pool_cleanup_null); \ 40 } \ 41 return APR_SUCCESS; \ 42} 43 44#define APR_IMPLEMENT_INHERIT_UNSET(name, flag, pool, cleanup) \ 45apr_status_t apr_##name##_inherit_unset(apr_##name##_t *the##name) \ 46{ \ 47 if (the##name->flag & APR_FOPEN_NOCLEANUP) \ 48 return APR_EINVAL; \ 49 if (the##name->flag & APR_INHERIT) { \ 50 int flags; \ 51 if ((flags = fcntl(the##name->name##des, F_GETFD)) == -1) \ 52 return errno; \ 53 flags |= FD_CLOEXEC; \ 54 if (fcntl(the##name->name##des, F_SETFD, flags) == -1) \ 55 return errno; \ 56 the##name->flag &= ~APR_INHERIT; \ 57 apr_pool_child_cleanup_set(the##name->pool, \ 58 (void *)the##name, \ 59 cleanup, cleanup); \ 60 } \ 61 return APR_SUCCESS; \ 62} 63 64#endif /* ! INHERIT_H */ 65