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00021 #ifndef APR_BUCKETS_H
00022 #define APR_BUCKETS_H
00023
00024 #if defined(APR_BUCKET_DEBUG) && !defined(APR_RING_DEBUG)
00025 #define APR_RING_DEBUG
00026 #endif
00027
00028 #include "apu.h"
00029 #include "apr_network_io.h"
00030 #include "apr_file_io.h"
00031 #include "apr_general.h"
00032 #include "apr_mmap.h"
00033 #include "apr_errno.h"
00034 #include "apr_ring.h"
00035 #include "apr.h"
00036 #if APR_HAVE_SYS_UIO_H
00037 #include <sys/uio.h>
00038 #endif
00039 #if APR_HAVE_STDARG_H
00040 #include <stdarg.h>
00041 #endif
00042
00043 #ifdef __cplusplus
00044 extern "C" {
00045 #endif
00046
00054 #define APR_BUCKET_BUFF_SIZE 8000
00055
00057 typedef enum {
00058 APR_BLOCK_READ,
00059 APR_NONBLOCK_READ
00060 } apr_read_type_e;
00061
00114
00115
00116
00117
00119 typedef struct apr_bucket_brigade apr_bucket_brigade;
00121 typedef struct apr_bucket apr_bucket;
00123 typedef struct apr_bucket_alloc_t apr_bucket_alloc_t;
00124
00126 typedef struct apr_bucket_type_t apr_bucket_type_t;
00127
00131 struct apr_bucket_type_t {
00135 const char *name;
00140 int num_func;
00151 enum {
00153 APR_BUCKET_DATA = 0,
00155 APR_BUCKET_METADATA = 1
00156 } is_metadata;
00164 void (*destroy)(void *data);
00165
00176 apr_status_t (*read)(apr_bucket *b, const char **str, apr_size_t *len,
00177 apr_read_type_e block);
00178
00192 apr_status_t (*setaside)(apr_bucket *e, apr_pool_t *pool);
00193
00203 apr_status_t (*split)(apr_bucket *e, apr_size_t point);
00204
00211 apr_status_t (*copy)(apr_bucket *e, apr_bucket **c);
00212
00213 };
00214
00224 struct apr_bucket {
00226 APR_RING_ENTRY(apr_bucket) link;
00228 const apr_bucket_type_t *type;
00234 apr_size_t length;
00242 apr_off_t start;
00244 void *data;
00252 void (*free)(void *e);
00254 apr_bucket_alloc_t *list;
00255 };
00256
00258 struct apr_bucket_brigade {
00264 apr_pool_t *p;
00266
00267
00268
00269
00270
00271
00272
00273 APR_RING_HEAD(apr_bucket_list, apr_bucket) list;
00275 apr_bucket_alloc_t *bucket_alloc;
00276 };
00277
00278
00282 typedef apr_status_t (*apr_brigade_flush)(apr_bucket_brigade *bb, void *ctx);
00283
00284
00285
00286
00287
00288
00289 #ifdef APR_BUCKET_DEBUG
00290
00291 #define APR_BRIGADE_CHECK_CONSISTENCY(b) \
00292 APR_RING_CHECK_CONSISTENCY(&(b)->list, apr_bucket, link)
00293
00294 #define APR_BUCKET_CHECK_CONSISTENCY(e) \
00295 APR_RING_CHECK_ELEM_CONSISTENCY((e), apr_bucket, link)
00296
00297 #else
00298
00304 #define APR_BRIGADE_CHECK_CONSISTENCY(b)
00305
00311 #define APR_BUCKET_CHECK_CONSISTENCY(e)
00312 #endif
00313
00314
00331 #define APR_BRIGADE_SENTINEL(b) APR_RING_SENTINEL(&(b)->list, apr_bucket, link)
00332
00338 #define APR_BRIGADE_EMPTY(b) APR_RING_EMPTY(&(b)->list, apr_bucket, link)
00339
00345 #define APR_BRIGADE_FIRST(b) APR_RING_FIRST(&(b)->list)
00346
00351 #define APR_BRIGADE_LAST(b) APR_RING_LAST(&(b)->list)
00352
00358 #define APR_BRIGADE_INSERT_HEAD(b, e) do { \
00359 apr_bucket *ap__b = (e); \
00360 APR_RING_INSERT_HEAD(&(b)->list, ap__b, apr_bucket, link); \
00361 APR_BRIGADE_CHECK_CONSISTENCY((b)); \
00362 } while (0)
00363
00369 #define APR_BRIGADE_INSERT_TAIL(b, e) do { \
00370 apr_bucket *ap__b = (e); \
00371 APR_RING_INSERT_TAIL(&(b)->list, ap__b, apr_bucket, link); \
00372 APR_BRIGADE_CHECK_CONSISTENCY((b)); \
00373 } while (0)
00374
00380 #define APR_BRIGADE_CONCAT(a, b) do { \
00381 APR_RING_CONCAT(&(a)->list, &(b)->list, apr_bucket, link); \
00382 APR_BRIGADE_CHECK_CONSISTENCY((a)); \
00383 } while (0)
00384
00390 #define APR_BRIGADE_PREPEND(a, b) do { \
00391 APR_RING_PREPEND(&(a)->list, &(b)->list, apr_bucket, link); \
00392 APR_BRIGADE_CHECK_CONSISTENCY((a)); \
00393 } while (0)
00394
00400 #define APR_BUCKET_INSERT_BEFORE(a, b) do { \
00401 apr_bucket *ap__a = (a), *ap__b = (b); \
00402 APR_RING_INSERT_BEFORE(ap__a, ap__b, link); \
00403 APR_BUCKET_CHECK_CONSISTENCY(ap__a); \
00404 } while (0)
00405
00411 #define APR_BUCKET_INSERT_AFTER(a, b) do { \
00412 apr_bucket *ap__a = (a), *ap__b = (b); \
00413 APR_RING_INSERT_AFTER(ap__a, ap__b, link); \
00414 APR_BUCKET_CHECK_CONSISTENCY(ap__a); \
00415 } while (0)
00416
00422 #define APR_BUCKET_NEXT(e) APR_RING_NEXT((e), link)
00423
00428 #define APR_BUCKET_PREV(e) APR_RING_PREV((e), link)
00429
00434 #define APR_BUCKET_REMOVE(e) APR_RING_REMOVE((e), link)
00435
00440 #define APR_BUCKET_INIT(e) APR_RING_ELEM_INIT((e), link)
00441
00448 #define APR_BUCKET_IS_METADATA(e) ((e)->type->is_metadata)
00449
00455 #define APR_BUCKET_IS_FLUSH(e) ((e)->type == &apr_bucket_type_flush)
00456
00461 #define APR_BUCKET_IS_EOS(e) ((e)->type == &apr_bucket_type_eos)
00462
00467 #define APR_BUCKET_IS_FILE(e) ((e)->type == &apr_bucket_type_file)
00468
00473 #define APR_BUCKET_IS_PIPE(e) ((e)->type == &apr_bucket_type_pipe)
00474
00479 #define APR_BUCKET_IS_SOCKET(e) ((e)->type == &apr_bucket_type_socket)
00480
00485 #define APR_BUCKET_IS_HEAP(e) ((e)->type == &apr_bucket_type_heap)
00486
00491 #define APR_BUCKET_IS_TRANSIENT(e) ((e)->type == &apr_bucket_type_transient)
00492
00497 #define APR_BUCKET_IS_IMMORTAL(e) ((e)->type == &apr_bucket_type_immortal)
00498 #if APR_HAS_MMAP
00499
00504 #define APR_BUCKET_IS_MMAP(e) ((e)->type == &apr_bucket_type_mmap)
00505 #endif
00506
00511 #define APR_BUCKET_IS_POOL(e) ((e)->type == &apr_bucket_type_pool)
00512
00513
00514
00515
00516
00517
00518
00519
00520
00521
00522
00524 typedef struct apr_bucket_refcount apr_bucket_refcount;
00531 struct apr_bucket_refcount {
00533 int refcount;
00534 };
00535
00536
00537
00539 typedef struct apr_bucket_heap apr_bucket_heap;
00543 struct apr_bucket_heap {
00545 apr_bucket_refcount refcount;
00549 char *base;
00551 apr_size_t alloc_len;
00553 void (*free_func)(void *data);
00554 };
00555
00557 typedef struct apr_bucket_pool apr_bucket_pool;
00561 struct apr_bucket_pool {
00573 apr_bucket_heap heap;
00579 const char *base;
00586 apr_pool_t *pool;
00590 apr_bucket_alloc_t *list;
00591 };
00592
00593 #if APR_HAS_MMAP
00594
00595 typedef struct apr_bucket_mmap apr_bucket_mmap;
00599 struct apr_bucket_mmap {
00601 apr_bucket_refcount refcount;
00603 apr_mmap_t *mmap;
00604 };
00605 #endif
00606
00608 typedef struct apr_bucket_file apr_bucket_file;
00612 struct apr_bucket_file {
00614 apr_bucket_refcount refcount;
00616 apr_file_t *fd;
00619 apr_pool_t *readpool;
00620 #if APR_HAS_MMAP
00621
00623 int can_mmap;
00624 #endif
00625 };
00626
00628 typedef union apr_bucket_structs apr_bucket_structs;
00633 union apr_bucket_structs {
00634 apr_bucket b;
00635 apr_bucket_heap heap;
00636 apr_bucket_pool pool;
00637 #if APR_HAS_MMAP
00638 apr_bucket_mmap mmap;
00639 #endif
00640 apr_bucket_file file;
00641 };
00642
00648 #define APR_BUCKET_ALLOC_SIZE APR_ALIGN_DEFAULT(2*sizeof(apr_bucket_structs))
00649
00650
00658 APU_DECLARE(apr_bucket_brigade *) apr_brigade_create(apr_pool_t *p,
00659 apr_bucket_alloc_t *list);
00660
00666 APU_DECLARE(apr_status_t) apr_brigade_destroy(apr_bucket_brigade *b);
00667
00679 APU_DECLARE(apr_status_t) apr_brigade_cleanup(void *data);
00680
00695 APU_DECLARE(apr_bucket_brigade *) apr_brigade_split_ex(apr_bucket_brigade *b,
00696 apr_bucket *e,
00697 apr_bucket_brigade *a);
00698
00710 APU_DECLARE(apr_bucket_brigade *) apr_brigade_split(apr_bucket_brigade *b,
00711 apr_bucket *e);
00712
00725 APU_DECLARE(apr_status_t) apr_brigade_partition(apr_bucket_brigade *b,
00726 apr_off_t point,
00727 apr_bucket **after_point);
00728
00737 APU_DECLARE(apr_status_t) apr_brigade_length(apr_bucket_brigade *bb,
00738 int read_all,
00739 apr_off_t *length);
00740
00748 APU_DECLARE(apr_status_t) apr_brigade_flatten(apr_bucket_brigade *bb,
00749 char *c,
00750 apr_size_t *len);
00751
00759 APU_DECLARE(apr_status_t) apr_brigade_pflatten(apr_bucket_brigade *bb,
00760 char **c,
00761 apr_size_t *len,
00762 apr_pool_t *pool);
00763
00772 APU_DECLARE(apr_status_t) apr_brigade_split_line(apr_bucket_brigade *bbOut,
00773 apr_bucket_brigade *bbIn,
00774 apr_read_type_e block,
00775 apr_off_t maxbytes);
00776
00786 APU_DECLARE(apr_status_t) apr_brigade_to_iovec(apr_bucket_brigade *b,
00787 struct iovec *vec, int *nvec);
00788
00797 APU_DECLARE(apr_status_t) apr_brigade_vputstrs(apr_bucket_brigade *b,
00798 apr_brigade_flush flush,
00799 void *ctx,
00800 va_list va);
00801
00825 APU_DECLARE(apr_status_t) apr_brigade_write(apr_bucket_brigade *b,
00826 apr_brigade_flush flush, void *ctx,
00827 const char *str, apr_size_t nbyte);
00828
00838 APU_DECLARE(apr_status_t) apr_brigade_writev(apr_bucket_brigade *b,
00839 apr_brigade_flush flush,
00840 void *ctx,
00841 const struct iovec *vec,
00842 apr_size_t nvec);
00843
00852 APU_DECLARE(apr_status_t) apr_brigade_puts(apr_bucket_brigade *bb,
00853 apr_brigade_flush flush, void *ctx,
00854 const char *str);
00855
00864 APU_DECLARE(apr_status_t) apr_brigade_putc(apr_bucket_brigade *b,
00865 apr_brigade_flush flush, void *ctx,
00866 const char c);
00867
00876 APU_DECLARE_NONSTD(apr_status_t) apr_brigade_putstrs(apr_bucket_brigade *b,
00877 apr_brigade_flush flush,
00878 void *ctx, ...);
00879
00890 APU_DECLARE_NONSTD(apr_status_t) apr_brigade_printf(apr_bucket_brigade *b,
00891 apr_brigade_flush flush,
00892 void *ctx,
00893 const char *fmt, ...)
00894 __attribute__((format(printf,4,5)));
00895
00906 APU_DECLARE(apr_status_t) apr_brigade_vprintf(apr_bucket_brigade *b,
00907 apr_brigade_flush flush,
00908 void *ctx,
00909 const char *fmt, va_list va);
00910
00923 APU_DECLARE(apr_bucket *) apr_brigade_insert_file(apr_bucket_brigade *bb,
00924 apr_file_t *f,
00925 apr_off_t start,
00926 apr_off_t len,
00927 apr_pool_t *p);
00928
00929
00930
00931
00945 APU_DECLARE_NONSTD(apr_bucket_alloc_t *) apr_bucket_alloc_create(apr_pool_t *p);
00946
00955 APU_DECLARE_NONSTD(apr_bucket_alloc_t *) apr_bucket_alloc_create_ex(apr_allocator_t *allocator);
00956
00961 APU_DECLARE_NONSTD(void) apr_bucket_alloc_destroy(apr_bucket_alloc_t *list);
00962
00968 APU_DECLARE_NONSTD(void *) apr_bucket_alloc(apr_size_t size, apr_bucket_alloc_t *list);
00969
00974 APU_DECLARE_NONSTD(void) apr_bucket_free(void *block);
00975
00976
00977
00984 #define apr_bucket_destroy(e) do { \
00985 (e)->type->destroy((e)->data); \
00986 (e)->free(e); \
00987 } while (0)
00988
01000 #define apr_bucket_delete(e) do { \
01001 APR_BUCKET_REMOVE(e); \
01002 apr_bucket_destroy(e); \
01003 } while (0)
01004
01072 #define apr_bucket_read(e,str,len,block) (e)->type->read(e, str, len, block)
01073
01080 #define apr_bucket_setaside(e,p) (e)->type->setaside(e,p)
01081
01092 #define apr_bucket_split(e,point) (e)->type->split(e, point)
01093
01099 #define apr_bucket_copy(e,c) (e)->type->copy(e, c)
01100
01101
01102
01112 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_setaside_noop(apr_bucket *data,
01113 apr_pool_t *pool);
01114
01122 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_setaside_notimpl(apr_bucket *data,
01123 apr_pool_t *pool);
01124
01132 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_split_notimpl(apr_bucket *data,
01133 apr_size_t point);
01134
01142 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_copy_notimpl(apr_bucket *e,
01143 apr_bucket **c);
01144
01154 APU_DECLARE_NONSTD(void) apr_bucket_destroy_noop(void *data);
01155
01162
01163
01164
01165
01166
01171 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_flush;
01177 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_eos;
01181 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_file;
01186 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_heap;
01187 #if APR_HAS_MMAP
01188
01191 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_mmap;
01192 #endif
01193
01198 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_pool;
01202 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_pipe;
01208 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_immortal;
01214 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_transient;
01218 APU_DECLARE_DATA extern const apr_bucket_type_t apr_bucket_type_socket;
01219
01220
01221
01222
01234 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_simple_split(apr_bucket *b,
01235 apr_size_t point);
01236
01247 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_simple_copy(apr_bucket *a,
01248 apr_bucket **b);
01249
01250
01251
01252
01267 APU_DECLARE(apr_bucket *) apr_bucket_shared_make(apr_bucket *b, void *data,
01268 apr_off_t start,
01269 apr_size_t length);
01270
01279 APU_DECLARE(int) apr_bucket_shared_destroy(void *data);
01280
01292 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_shared_split(apr_bucket *b,
01293 apr_size_t point);
01294
01304 APU_DECLARE_NONSTD(apr_status_t) apr_bucket_shared_copy(apr_bucket *a,
01305 apr_bucket **b);
01306
01307
01308
01309
01310
01311
01312
01313
01314
01315
01316
01317
01318
01319
01326 APU_DECLARE(apr_bucket *) apr_bucket_eos_create(apr_bucket_alloc_t *list);
01327
01335 APU_DECLARE(apr_bucket *) apr_bucket_eos_make(apr_bucket *b);
01336
01344 APU_DECLARE(apr_bucket *) apr_bucket_flush_create(apr_bucket_alloc_t *list);
01345
01353 APU_DECLARE(apr_bucket *) apr_bucket_flush_make(apr_bucket *b);
01354
01362 APU_DECLARE(apr_bucket *) apr_bucket_immortal_create(const char *buf,
01363 apr_size_t nbyte,
01364 apr_bucket_alloc_t *list);
01365
01373 APU_DECLARE(apr_bucket *) apr_bucket_immortal_make(apr_bucket *b,
01374 const char *buf,
01375 apr_size_t nbyte);
01376
01384 APU_DECLARE(apr_bucket *) apr_bucket_transient_create(const char *buf,
01385 apr_size_t nbyte,
01386 apr_bucket_alloc_t *list);
01387
01395 APU_DECLARE(apr_bucket *) apr_bucket_transient_make(apr_bucket *b,
01396 const char *buf,
01397 apr_size_t nbyte);
01398
01413 APU_DECLARE(apr_bucket *) apr_bucket_heap_create(const char *buf,
01414 apr_size_t nbyte,
01415 void (*free_func)(void *data),
01416 apr_bucket_alloc_t *list);
01426 APU_DECLARE(apr_bucket *) apr_bucket_heap_make(apr_bucket *b, const char *buf,
01427 apr_size_t nbyte,
01428 void (*free_func)(void *data));
01429
01439 APU_DECLARE(apr_bucket *) apr_bucket_pool_create(const char *buf,
01440 apr_size_t length,
01441 apr_pool_t *pool,
01442 apr_bucket_alloc_t *list);
01443
01452 APU_DECLARE(apr_bucket *) apr_bucket_pool_make(apr_bucket *b, const char *buf,
01453 apr_size_t length,
01454 apr_pool_t *pool);
01455
01456 #if APR_HAS_MMAP
01457
01466 APU_DECLARE(apr_bucket *) apr_bucket_mmap_create(apr_mmap_t *mm,
01467 apr_off_t start,
01468 apr_size_t length,
01469 apr_bucket_alloc_t *list);
01470
01480 APU_DECLARE(apr_bucket *) apr_bucket_mmap_make(apr_bucket *b, apr_mmap_t *mm,
01481 apr_off_t start,
01482 apr_size_t length);
01483 #endif
01484
01491 APU_DECLARE(apr_bucket *) apr_bucket_socket_create(apr_socket_t *thissock,
01492 apr_bucket_alloc_t *list);
01499 APU_DECLARE(apr_bucket *) apr_bucket_socket_make(apr_bucket *b,
01500 apr_socket_t *thissock);
01501
01508 APU_DECLARE(apr_bucket *) apr_bucket_pipe_create(apr_file_t *thispipe,
01509 apr_bucket_alloc_t *list);
01510
01517 APU_DECLARE(apr_bucket *) apr_bucket_pipe_make(apr_bucket *b,
01518 apr_file_t *thispipe);
01519
01536 APU_DECLARE(apr_bucket *) apr_bucket_file_create(apr_file_t *fd,
01537 apr_off_t offset,
01538 apr_size_t len,
01539 apr_pool_t *p,
01540 apr_bucket_alloc_t *list);
01541
01552 APU_DECLARE(apr_bucket *) apr_bucket_file_make(apr_bucket *b, apr_file_t *fd,
01553 apr_off_t offset,
01554 apr_size_t len, apr_pool_t *p);
01555
01562 APU_DECLARE(apr_status_t) apr_bucket_file_enable_mmap(apr_bucket *b,
01563 int enabled);
01564
01566 #ifdef __cplusplus
01567 }
01568 #endif
01569
01570 #endif