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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
#ifndef APR_GENERAL_H
#define APR_GENERAL_H
/**
* @file apr_general.h
* This is collection of oddballs that didn't fit anywhere else,
* and might move to more appropriate headers with the release
* of APR 1.0.
* @brief APR Miscellaneous library routines
*/
#include "apr.h"
#include "apr_pools.h"
#include "apr_errno.h"
#if APR_HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup apr_general Miscellaneous library routines
* @ingroup APR
* This is collection of oddballs that didn't fit anywhere else,
* and might move to more appropriate headers with the release
* of APR 1.0.
* @{
*/
/** FALSE */
#ifndef FALSE
#define FALSE 0
#endif
/** TRUE */
#ifndef TRUE
#define TRUE (!FALSE)
#endif
/** a space */
#define APR_ASCII_BLANK '\040'
/** a carrige return */
#define APR_ASCII_CR '\015'
/** a line feed */
#define APR_ASCII_LF '\012'
/** a tab */
#define APR_ASCII_TAB '\011'
/** signal numbers typedef */
typedef int apr_signum_t;
/**
* Finding offsets of elements within structures.
* Taken from the X code... they've sweated portability of this stuff
* so we don't have to. Sigh...
* @param p_type pointer type name
* @param field data field within the structure pointed to
* @return offset
*/
#if defined(CRAY) || (defined(__arm) && !defined(LINUX))
#ifdef __STDC__
#define APR_OFFSET(p_type,field) _Offsetof(p_type,field)
#else
#ifdef CRAY2
#define APR_OFFSET(p_type,field) \
(sizeof(int)*((unsigned int)&(((p_type)NULL)->field)))
#else /* !CRAY2 */
#define APR_OFFSET(p_type,field) ((unsigned int)&(((p_type)NULL)->field))
#endif /* !CRAY2 */
#endif /* __STDC__ */
#else /* ! (CRAY || __arm) */
#define APR_OFFSET(p_type,field) \
((long) (((char *) (&(((p_type)NULL)->field))) - ((char *) NULL)))
#endif /* !CRAY */
/**
* Finding offsets of elements within structures.
* @param s_type structure type name
* @param field data field within the structure
* @return offset
*/
#if defined(offsetof) && !defined(__cplusplus)
#define APR_OFFSETOF(s_type,field) offsetof(s_type,field)
#else
#define APR_OFFSETOF(s_type,field) APR_OFFSET(s_type*,field)
#endif
/** @deprecated @see APR_OFFSET */
#define APR_XtOffset APR_OFFSET
/** @deprecated @see APR_OFFSETOF */
#define APR_XtOffsetOf APR_OFFSETOF
#ifndef DOXYGEN
/* A couple of prototypes for functions in case some platform doesn't
* have it
*/
#if (!APR_HAVE_STRCASECMP) && (APR_HAVE_STRICMP)
#define strcasecmp(s1, s2) stricmp(s1, s2)
#elif (!APR_HAVE_STRCASECMP)
int strcasecmp(const char *a, const char *b);
#endif
#if (!APR_HAVE_STRNCASECMP) && (APR_HAVE_STRNICMP)
#define strncasecmp(s1, s2, n) strnicmp(s1, s2, n)
#elif (!APR_HAVE_STRNCASECMP)
int strncasecmp(const char *a, const char *b, size_t n);
#endif
#endif
/**
* Alignment macros
*/
/* APR_ALIGN() is only to be used to align on a power of 2 boundary */
#define APR_ALIGN(size, boundary) \
(((size) + ((boundary) - 1)) & ~((boundary) - 1))
/** Default alignment */
#define APR_ALIGN_DEFAULT(size) APR_ALIGN(size, 8)
/**
* String and memory functions
*/
/** Properly quote a value as a string in the C preprocessor */
#define APR_STRINGIFY(n) APR_STRINGIFY_HELPER(n)
/** Helper macro for APR_STRINGIFY */
#define APR_STRINGIFY_HELPER(n) #n
#if (!APR_HAVE_MEMMOVE)
#define memmove(a,b,c) bcopy(b,a,c)
#endif
#if (!APR_HAVE_MEMCHR)
void *memchr(const void *s, int c, size_t n);
#endif
/** @} */
/**
* @defgroup apr_library Library initialization and termination
* @{
*/
/**
* Setup any APR internal data structures. This MUST be the first function
* called for any APR library.
* @remark See apr_app_initialize if this is an application, rather than
* a library consumer of apr.
*/
APR_DECLARE(apr_status_t) apr_initialize(void);
/**
* Set up an application with normalized argc, argv (and optionally env) in
* order to deal with platform-specific oddities, such as Win32 services,
* code pages and signals. This must be the first function called for any
* APR program.
* @param argc Pointer to the argc that may be corrected
* @param argv Pointer to the argv that may be corrected
* @param env Pointer to the env that may be corrected, may be NULL
* @remark See apr_initialize if this is a library consumer of apr.
* Otherwise, this call is identical to apr_initialize, and must be closed
* with a call to apr_terminate at the end of program execution.
*/
APR_DECLARE(apr_status_t) apr_app_initialize(int *argc,
char const * const * *argv,
char const * const * *env);
/**
* Tear down any APR internal data structures which aren't torn down
* automatically.
* @remark An APR program must call this function at termination once it
* has stopped using APR services. The APR developers suggest using
* atexit to ensure this is called. When using APR from a language
* other than C that has problems with the calling convention, use
* apr_terminate2() instead.
*/
APR_DECLARE_NONSTD(void) apr_terminate(void);
/**
* Tear down any APR internal data structures which aren't torn down
* automatically, same as apr_terminate
* @remark An APR program must call either the apr_terminate or apr_terminate2
* function once it it has finished using APR services. The APR
* developers suggest using atexit(apr_terminate) to ensure this is done.
* apr_terminate2 exists to allow non-c language apps to tear down apr,
* while apr_terminate is recommended from c language applications.
*/
APR_DECLARE(void) apr_terminate2(void);
/** @} */
/**
* @defgroup apr_random Random Functions
* @{
*/
#if APR_HAS_RANDOM || defined(DOXYGEN)
/* TODO: I'm not sure this is the best place to put this prototype...*/
/**
* Generate random bytes.
* @param buf Buffer to fill with random bytes
* @param length Length of buffer in bytes (becomes apr_size_t in APR 1.0)
*/
#ifdef APR_ENABLE_FOR_1_0
APR_DECLARE(apr_status_t) apr_generate_random_bytes(unsigned char * buf,
apr_size_t length);
#else
APR_DECLARE(apr_status_t) apr_generate_random_bytes(unsigned char * buf,
int length);
#endif
#endif
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* ! APR_GENERAL_H */
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