prop_object_impl.h revision 1.22
1 /* $NetBSD: prop_object_impl.h,v 1.22 2008/05/06 22:57:26 xtraeme Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _PROPLIB_PROP_OBJECT_IMPL_H_ 33 #define _PROPLIB_PROP_OBJECT_IMPL_H_ 34 35 #if defined(_KERNEL) || defined(_STANDALONE) 36 #include <lib/libkern/libkern.h> 37 #else 38 #include <inttypes.h> 39 #endif 40 41 #include "prop_stack.h" 42 43 struct _prop_object_externalize_context { 44 char * poec_buf; /* string buffer */ 45 size_t poec_capacity; /* capacity of buffer */ 46 size_t poec_len; /* current length of string */ 47 unsigned int poec_depth; /* nesting depth */ 48 }; 49 50 bool _prop_object_externalize_start_tag( 51 struct _prop_object_externalize_context *, 52 const char *); 53 bool _prop_object_externalize_end_tag( 54 struct _prop_object_externalize_context *, 55 const char *); 56 bool _prop_object_externalize_empty_tag( 57 struct _prop_object_externalize_context *, 58 const char *); 59 bool _prop_object_externalize_append_cstring( 60 struct _prop_object_externalize_context *, 61 const char *); 62 bool _prop_object_externalize_append_encoded_cstring( 63 struct _prop_object_externalize_context *, 64 const char *); 65 bool _prop_object_externalize_append_char( 66 struct _prop_object_externalize_context *, 67 unsigned char); 68 bool _prop_object_externalize_header( 69 struct _prop_object_externalize_context *); 70 bool _prop_object_externalize_footer( 71 struct _prop_object_externalize_context *); 72 73 struct _prop_object_externalize_context * 74 _prop_object_externalize_context_alloc(void); 75 void _prop_object_externalize_context_free( 76 struct _prop_object_externalize_context *); 77 78 typedef enum { 79 _PROP_TAG_TYPE_START, /* e.g. <dict> */ 80 _PROP_TAG_TYPE_END, /* e.g. </dict> */ 81 _PROP_TAG_TYPE_EITHER 82 } _prop_tag_type_t; 83 84 struct _prop_object_internalize_context { 85 const char *poic_xml; 86 const char *poic_cp; 87 88 const char *poic_tag_start; 89 90 const char *poic_tagname; 91 size_t poic_tagname_len; 92 const char *poic_tagattr; 93 size_t poic_tagattr_len; 94 const char *poic_tagattrval; 95 size_t poic_tagattrval_len; 96 97 bool poic_is_empty_element; 98 _prop_tag_type_t poic_tag_type; 99 }; 100 101 enum { 102 _PROP_OBJECT_FREE_DONE, 103 _PROP_OBJECT_FREE_RECURSE, 104 _PROP_OBJECT_FREE_FAILED 105 }; 106 107 enum { 108 _PROP_OBJECT_EQUALS_FALSE, 109 _PROP_OBJECT_EQUALS_TRUE, 110 _PROP_OBJECT_EQUALS_RECURSE 111 }; 112 113 #define _PROP_EOF(c) ((c) == '\0') 114 #define _PROP_ISSPACE(c) \ 115 ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) == '\r' || \ 116 _PROP_EOF(c)) 117 118 #define _PROP_TAG_MATCH(ctx, t) \ 119 _prop_object_internalize_match((ctx)->poic_tagname, \ 120 (ctx)->poic_tagname_len, \ 121 (t), strlen(t)) 122 123 #define _PROP_TAGATTR_MATCH(ctx, a) \ 124 _prop_object_internalize_match((ctx)->poic_tagattr, \ 125 (ctx)->poic_tagattr_len, \ 126 (a), strlen(a)) 127 128 #define _PROP_TAGATTRVAL_MATCH(ctx, a) \ 129 _prop_object_internalize_match((ctx)->poic_tagattrval, \ 130 (ctx)->poic_tagattrval_len,\ 131 (a), strlen(a)) 132 133 bool _prop_object_internalize_find_tag( 134 struct _prop_object_internalize_context *, 135 const char *, _prop_tag_type_t); 136 bool _prop_object_internalize_match(const char *, size_t, 137 const char *, size_t); 138 prop_object_t _prop_object_internalize_by_tag( 139 struct _prop_object_internalize_context *); 140 bool _prop_object_internalize_decode_string( 141 struct _prop_object_internalize_context *, 142 char *, size_t, size_t *, const char **); 143 prop_object_t _prop_generic_internalize(const char *, const char *); 144 145 struct _prop_object_internalize_context * 146 _prop_object_internalize_context_alloc(const char *); 147 void _prop_object_internalize_context_free( 148 struct _prop_object_internalize_context *); 149 150 #if !defined(_KERNEL) && !defined(_STANDALONE) 151 bool _prop_object_externalize_write_file(const char *, 152 const char *, size_t); 153 154 struct _prop_object_internalize_mapped_file { 155 char * poimf_xml; 156 size_t poimf_mapsize; 157 }; 158 159 struct _prop_object_internalize_mapped_file * 160 _prop_object_internalize_map_file(const char *); 161 void _prop_object_internalize_unmap_file( 162 struct _prop_object_internalize_mapped_file *); 163 #endif /* !_KERNEL && !_STANDALONE */ 164 165 typedef bool (*prop_object_internalizer_t)(prop_stack_t, prop_object_t *, 166 struct _prop_object_internalize_context *); 167 typedef bool (*prop_object_internalizer_continue_t)(prop_stack_t, prop_object_t *, 168 struct _prop_object_internalize_context *, void *, prop_object_t); 169 170 /* These are here because they're required by shared code. */ 171 bool _prop_array_internalize(prop_stack_t, prop_object_t *, 172 struct _prop_object_internalize_context *); 173 bool _prop_bool_internalize(prop_stack_t, prop_object_t *, 174 struct _prop_object_internalize_context *); 175 bool _prop_data_internalize(prop_stack_t, prop_object_t *, 176 struct _prop_object_internalize_context *); 177 bool _prop_dictionary_internalize(prop_stack_t, prop_object_t *, 178 struct _prop_object_internalize_context *); 179 bool _prop_number_internalize(prop_stack_t, prop_object_t *, 180 struct _prop_object_internalize_context *); 181 bool _prop_string_internalize(prop_stack_t, prop_object_t *, 182 struct _prop_object_internalize_context *); 183 184 struct _prop_object_type { 185 /* type indicator */ 186 uint32_t pot_type; 187 /* func to free object */ 188 int (*pot_free)(prop_stack_t, prop_object_t *); 189 /* 190 * func to free the child returned by pot_free with stack == NULL. 191 * 192 * Must be implemented if pot_free can return anything other than 193 * _PROP_OBJECT_FREE_DONE. 194 */ 195 void (*pot_emergency_free)(prop_object_t); 196 /* func to externalize object */ 197 bool (*pot_extern)(struct _prop_object_externalize_context *, 198 void *); 199 /* func to test quality */ 200 bool (*pot_equals)(prop_object_t, prop_object_t, 201 void **, void **, 202 prop_object_t *, prop_object_t *); 203 /* 204 * func to finish equality iteration. 205 * 206 * Must be implemented if pot_equals can return 207 * _PROP_OBJECT_EQUALS_RECURSE 208 */ 209 void (*pot_equals_finish)(prop_object_t, prop_object_t); 210 }; 211 212 struct _prop_object { 213 const struct _prop_object_type *po_type;/* type descriptor */ 214 uint32_t po_refcnt; /* reference count */ 215 }; 216 217 void _prop_object_init(struct _prop_object *, 218 const struct _prop_object_type *); 219 void _prop_object_fini(struct _prop_object *); 220 221 struct _prop_object_iterator { 222 prop_object_t (*pi_next_object)(void *); 223 void (*pi_reset)(void *); 224 prop_object_t pi_obj; 225 uint32_t pi_version; 226 }; 227 228 #if defined(_KERNEL) 229 230 /* 231 * proplib in the kernel... 232 */ 233 234 #include <sys/param.h> 235 #include <sys/malloc.h> 236 #include <sys/pool.h> 237 #include <sys/systm.h> 238 #include <sys/simplelock.h> 239 #include <sys/rwlock.h> 240 241 #define _PROP_ASSERT(x) KASSERT(x) 242 243 #define _PROP_MALLOC(s, t) malloc((s), (t), M_WAITOK) 244 #define _PROP_CALLOC(s, t) malloc((s), (t), M_WAITOK | M_ZERO) 245 #define _PROP_REALLOC(v, s, t) realloc((v), (s), (t), M_WAITOK) 246 #define _PROP_FREE(v, t) free((v), (t)) 247 248 #define _PROP_POOL_GET(p) pool_get(&(p), PR_WAITOK) 249 #define _PROP_POOL_PUT(p, v) pool_put(&(p), (v)) 250 251 #define _PROP_POOL_INIT(p, s, d) \ 252 POOL_INIT(p, s, 0, 0, 0, d, &pool_allocator_nointr, IPL_NONE); 253 254 #define _PROP_MALLOC_DEFINE(t, s, l) \ 255 MALLOC_DEFINE(t, s, l); 256 257 #define _PROP_MUTEX_DECL_STATIC(x) \ 258 static struct simplelock x = SIMPLELOCK_INITIALIZER; 259 #define _PROP_MUTEX_LOCK(x) simple_lock(&(x)) 260 #define _PROP_MUTEX_UNLOCK(x) simple_unlock(&(x)) 261 262 #define _PROP_RWLOCK_DECL(x) krwlock_t x ; 263 #define _PROP_RWLOCK_INIT(x) rw_init(&(x)) 264 #define _PROP_RWLOCK_RDLOCK(x) rw_enter(&(x), RW_READER) 265 #define _PROP_RWLOCK_WRLOCK(x) rw_enter(&(x), RW_WRITER) 266 #define _PROP_RWLOCK_UNLOCK(x) rw_exit(&(x)) 267 #define _PROP_RWLOCK_DESTROY(x) rw_destroy(&(x)) 268 #define _PROP_RWLOCK_OWNED(x) _PROP_ASSERT(rw_lock_held(&(x))) 269 270 static __inline int 271 _prop_rwlock_tryrdlock(krwlock_t *lock) 272 { 273 return rw_tryenter(lock, RW_READER); 274 } 275 276 #elif defined(_STANDALONE) 277 278 /* 279 * proplib in a standalone environment... 280 */ 281 282 #include <lib/libsa/stand.h> 283 284 void * _prop_standalone_calloc(size_t); 285 void * _prop_standalone_realloc(void *, size_t); 286 287 #define _PROP_ASSERT(x) /* nothing */ 288 289 #define _PROP_MALLOC(s, t) alloc((s)) 290 #define _PROP_CALLOC(s, t) _prop_standalone_calloc((s)) 291 #define _PROP_REALLOC(v, s, t) _prop_standalone_realloc((v), (s)) 292 #define _PROP_FREE(v, t) dealloc((v), 0) /* XXX */ 293 294 #define _PROP_POOL_GET(p) alloc((p)) 295 #define _PROP_POOL_PUT(p, v) dealloc((v), (p)) 296 297 #define _PROP_POOL_INIT(p, s, d) static const size_t p = s; 298 299 #define _PROP_MALLOC_DEFINE(t, s, l) /* nothing */ 300 301 #define _PROP_MUTEX_DECL_STATIC(x) /* nothing */ 302 #define _PROP_MUTEX_LOCK(x) /* nothing */ 303 #define _PROP_MUTEX_UNLOCK(x) /* nothing */ 304 305 #define _PROP_RWLOCK_DECL(x) /* nothing */ 306 #define _PROP_RWLOCK_INIT(x) /* nothing */ 307 #define _PROP_RWLOCK_RDLOCK(x) /* nothing */ 308 #define _PROP_RWLOCK_WRLOCK(x) /* nothing */ 309 #define _PROP_RWLOCK_UNLOCK(x) /* nothing */ 310 #define _PROP_RWLOCK_DESTROY(x) /* nothing */ 311 #define _PROP_RWLOCK_OWNED(x) /* nothing */ 312 313 static __inline int 314 _prop_rwlock_tryrdlock(void *v __unused) 315 { 316 return 0; /* dummy */ 317 } 318 319 #else 320 321 /* 322 * proplib in user space... 323 */ 324 325 #include <assert.h> 326 #include <string.h> 327 #include <stdio.h> 328 #include <stdlib.h> 329 #include <stddef.h> 330 331 #define _PROP_ASSERT(x) /*LINTED*/assert(x) 332 333 #define _PROP_MALLOC(s, t) malloc((s)) 334 #define _PROP_CALLOC(s, t) calloc(1, (s)) 335 #define _PROP_REALLOC(v, s, t) realloc((v), (s)) 336 #define _PROP_FREE(v, t) free((v)) 337 338 #define _PROP_POOL_GET(p) malloc((p)) 339 #define _PROP_POOL_PUT(p, v) free((v)) 340 341 #define _PROP_POOL_INIT(p, s, d) static const size_t p = s; 342 343 #define _PROP_MALLOC_DEFINE(t, s, l) /* nothing */ 344 345 #if defined(__NetBSD__) && defined(_LIBPROP) 346 /* 347 * Use the same mechanism as libc; we get pthread mutexes for threaded 348 * programs and do-nothing stubs for non-threaded programs. 349 */ 350 #include "reentrant.h" 351 #define _PROP_MUTEX_DECL_STATIC(x) static mutex_t x = MUTEX_INITIALIZER; 352 #define _PROP_MUTEX_LOCK(x) mutex_lock(&(x)) 353 #define _PROP_MUTEX_UNLOCK(x) mutex_unlock(&(x)) 354 355 #define _PROP_RWLOCK_DECL(x) rwlock_t x ; 356 #define _PROP_RWLOCK_INIT(x) rwlock_init(&(x), NULL) 357 #define _PROP_RWLOCK_RDLOCK(x) rwlock_rdlock(&(x)) 358 #define _PROP_RWLOCK_WRLOCK(x) rwlock_wrlock(&(x)) 359 #define _PROP_RWLOCK_UNLOCK(x) rwlock_unlock(&(x)) 360 #define _PROP_RWLOCK_DESTROY(x) rwlock_destroy(&(x)) 361 #define _PROP_RWLOCK_OWNED(x) /* nothing */ 362 363 static __inline int 364 _prop_rwlock_tryrdlock(rwlock_t *lock) 365 { 366 return rwlock_tryrdlock(lock); 367 } 368 369 #elif defined(HAVE_NBTOOL_CONFIG_H) 370 /* 371 * None of NetBSD's build tools are multi-threaded. 372 */ 373 #define _PROP_MUTEX_DECL_STATIC(x) /* nothing */ 374 #define _PROP_MUTEX_LOCK(x) /* nothing */ 375 #define _PROP_MUTEX_UNLOCK(x) /* nothing */ 376 377 #define _PROP_RWLOCK_DECL(x) /* nothing */ 378 #define _PROP_RWLOCK_INIT(x) /* nothing */ 379 #define _PROP_RWLOCK_RDLOCK(x) /* nothing */ 380 #define _PROP_RWLOCK_WRLOCK(x) /* nothing */ 381 #define _PROP_RWLOCK_UNLOCK(x) /* nothing */ 382 #define _PROP_RWLOCK_DESTROY(x) /* nothing */ 383 #define _PROP_RWLOCK_OWNED(x) /* nothing */ 384 385 static __inline int 386 _prop_rwlock_tryrdlock(void *v __unused) 387 { 388 return 0; /* dummy */ 389 } 390 391 #else 392 /* 393 * Use pthread mutexes everywhere else. 394 */ 395 #include <pthread.h> 396 #define _PROP_MUTEX_DECL_STATIC(x) \ 397 static pthread_mutex_t x = PTHREAD_MUTEX_INITIALIZER; 398 #define _PROP_MUTEX_LOCK(x) pthread_mutex_lock(&(x)) 399 #define _PROP_MUTEX_UNLOCK(x) pthread_mutex_unlock(&(x)) 400 401 #define _PROP_RWLOCK_DECL(x) pthread_rwlock_t x ; 402 #define _PROP_RWLOCK_INIT(x) pthread_rwlock_init(&(x), NULL) 403 #define _PROP_RWLOCK_RDLOCK(x) pthread_rwlock_rdlock(&(x)) 404 #define _PROP_RWLOCK_WRLOCK(x) pthread_rwlock_wrlock(&(x)) 405 #define _PROP_RWLOCK_UNLOCK(x) pthread_rwlock_unlock(&(x)) 406 #define _PROP_RWLOCK_DESTROY(x) pthread_rwlock_destroy(&(x)) 407 #define _PROP_RWLOCK_OWNED(x) /* nothing */ 408 409 static __inline int 410 _prop_rwlock_tryrdlock(pthread_rwlock_t *lock) 411 { 412 return pthread_rwlock_tryrdlock(lock); 413 } 414 415 #endif 416 417 #endif /* _KERNEL */ 418 419 /* 420 * Language features. 421 */ 422 #if defined(__NetBSD__) 423 #include <sys/cdefs.h> 424 #define _PROP_ARG_UNUSED __unused 425 #else 426 #define _PROP_ARG_UNUSED /* delete */ 427 #endif /* __NetBSD__ */ 428 429 #endif /* _PROPLIB_PROP_OBJECT_IMPL_H_ */ 430
Indexes created Wed Sep 24 02:09:48 GMT 2025