1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/* 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.
*/
#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 */
|
