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/**
* @copyright
* ====================================================================
* 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.
* ====================================================================
* @endcopyright
*
* @file svn_dep_compat.h
* @brief Compatibility macros and functions.
* @since New in 1.5.0.
*/
#ifndef SVN_DEP_COMPAT_H
#define SVN_DEP_COMPAT_H
#include <apr_version.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* We assume that 'int' and 'unsigned' are at least 32 bits wide.
* This also implies that long (rev numbers) is 32 bits or wider.
*
* @since New in 1.9.
*/
#if defined(APR_HAVE_LIMITS_H) \
&& !defined(SVN_ALLOW_SHORT_INTS) \
&& (INT_MAX < 0x7FFFFFFFl)
#error int is shorter than 32 bits and may break Subversion. Define SVN_ALLOW_SHORT_INTS to skip this check.
#endif
/**
* We assume that 'char' is 8 bits wide. The critical interfaces are
* our repository formats and RA encodings. E.g. a 32 bit wide char may
* mess up UTF8 parsing, how we interpret size values etc.
*
* @since New in 1.9.
*/
#if defined(CHAR_BIT) \
&& !defined(SVN_ALLOW_NON_8_BIT_CHARS) \
&& (CHAR_BIT != 8)
#error char is not 8 bits and may break Subversion. Define SVN_ALLOW_NON_8_BIT_CHARS to skip this check.
#endif
/**
* Work around a platform dependency issue. apr_thread_rwlock_trywrlock()
* will make APR_STATUS_IS_EBUSY() return TRUE if the lock could not be
* acquired under Unix. Under Windows, this will not work. So, provide
* a more portable substitute.
*
* @since New in 1.8.
*/
#ifdef WIN32
#define SVN_LOCK_IS_BUSY(x) \
(APR_STATUS_IS_EBUSY(x) || (x) == APR_FROM_OS_ERROR(WAIT_TIMEOUT))
#else
#define SVN_LOCK_IS_BUSY(x) APR_STATUS_IS_EBUSY(x)
#endif
/**
* APR keeps a few interesting defines hidden away in its private
* headers apr_arch_file_io.h, so we redefined them here.
*
* @since New in 1.9
*/
#ifndef APR_FREADONLY
#define APR_FREADONLY 0x10000000
#endif
#ifndef APR_OPENINFO
#define APR_OPENINFO 0x00100000
#endif
#if !APR_VERSION_AT_LEAST(1,4,0)
#ifndef apr_time_from_msec
#define apr_time_from_msec(msec) ((apr_time_t)(msec) * 1000)
#endif
#endif
/**
* Check at compile time if the Serf version is at least a certain
* level.
* @param major The major version component of the version checked
* for (e.g., the "1" of "1.3.0").
* @param minor The minor version component of the version checked
* for (e.g., the "3" of "1.3.0").
* @param patch The patch level component of the version checked
* for (e.g., the "0" of "1.3.0").
*
* @since New in 1.5.
*/
#ifndef SERF_VERSION_AT_LEAST /* Introduced in Serf 0.1.1 */
#define SERF_VERSION_AT_LEAST(major,minor,patch) \
(((major) < SERF_MAJOR_VERSION) \
|| ((major) == SERF_MAJOR_VERSION && (minor) < SERF_MINOR_VERSION) \
|| ((major) == SERF_MAJOR_VERSION && (minor) == SERF_MINOR_VERSION && \
(patch) <= SERF_PATCH_VERSION))
#endif /* SERF_VERSION_AT_LEAST */
/**
* By default, if libsvn is built against one version of SQLite
* and then run using an older version, svn will error out:
*
* svn: Couldn't perform atomic initialization
* svn: SQLite compiled for 3.7.4, but running with 3.7.3
*
* That can be annoying when building on a modern system in order
* to deploy on a less modern one. So these constants allow one
* to specify how old the system being deployed on might be.
* For example,
*
* EXTRA_CFLAGS += -DSVN_SQLITE_MIN_VERSION_NUMBER=3007003
* EXTRA_CFLAGS += '-DSVN_SQLITE_MIN_VERSION="3.7.3"'
*
* turns on code that works around infelicities in older versions
* as far back as 3.7.3 and relaxes the check at initialization time
* to permit them.
*
* @since New in 1.8.
*/
#ifndef SVN_SQLITE_MIN_VERSION_NUMBER
#define SVN_SQLITE_MIN_VERSION_NUMBER SQLITE_VERSION_NUMBER
#define SVN_SQLITE_MIN_VERSION SQLITE_VERSION
#endif /* SVN_SQLITE_MIN_VERSION_NUMBER */
/**
* Check at compile time if the SQLite version is at least a certain
* level.
* @param major The major version component of the version checked
* for (e.g., the "1" of "1.3.0").
* @param minor The minor version component of the version checked
* for (e.g., the "3" of "1.3.0").
* @param patch The patch level component of the version checked
* for (e.g., the "0" of "1.3.0").
*
* @since New in 1.6.
*/
#ifndef SQLITE_VERSION_AT_LEAST
#define SQLITE_VERSION_AT_LEAST(major,minor,patch) \
((major*1000000 + minor*1000 + patch) <= SVN_SQLITE_MIN_VERSION_NUMBER)
#endif /* SQLITE_VERSION_AT_LEAST */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* SVN_DEP_COMPAT_H */
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