181 lines
6.2 KiB
C
181 lines
6.2 KiB
C
/* CWPack - cwpack.h */
|
|
/*
|
|
The MIT License (MIT)
|
|
|
|
Copyright (c) 2017 Claes Wihlborg
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy of this
|
|
software and associated documentation files (the "Software"), to deal in the Software
|
|
without restriction, including without limitation the rights to use, copy, modify,
|
|
merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
persons to whom the Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in all copies or
|
|
substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
|
|
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef CWPack_H__
|
|
#define CWPack_H__
|
|
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <time.h>
|
|
|
|
|
|
|
|
/******************************* Return Codes *****************************/
|
|
|
|
#define CWP_RC_OK 0
|
|
#define CWP_RC_END_OF_INPUT -1
|
|
#define CWP_RC_BUFFER_OVERFLOW -2
|
|
#define CWP_RC_BUFFER_UNDERFLOW -3
|
|
#define CWP_RC_MALFORMED_INPUT -4
|
|
#define CWP_RC_WRONG_BYTE_ORDER -5
|
|
#define CWP_RC_ERROR_IN_HANDLER -6
|
|
#define CWP_RC_ILLEGAL_CALL -7
|
|
#define CWP_RC_MALLOC_ERROR -8
|
|
#define CWP_RC_STOPPED -9
|
|
#define CWP_RC_TYPE_ERROR -10
|
|
#define CWP_RC_VALUE_ERROR -11
|
|
#define CWP_RC_WRONG_TIMESTAMP_LENGTH -12
|
|
|
|
|
|
|
|
/******************************* P A C K **********************************/
|
|
|
|
|
|
struct cw_pack_context;
|
|
|
|
typedef int (*pack_overflow_handler)(struct cw_pack_context*, unsigned long);
|
|
typedef int (*pack_flush_handler)(struct cw_pack_context*);
|
|
|
|
typedef struct cw_pack_context {
|
|
uint8_t* current;
|
|
uint8_t* start;
|
|
uint8_t* end;
|
|
bool be_compatible;
|
|
int return_code;
|
|
int err_no; /* handlers can save error here */
|
|
pack_overflow_handler handle_pack_overflow;
|
|
pack_flush_handler handle_flush;
|
|
} cw_pack_context;
|
|
|
|
|
|
int cw_pack_context_init (cw_pack_context* pack_context, void* data, unsigned long length, pack_overflow_handler hpo);
|
|
void cw_pack_set_compatibility (cw_pack_context* pack_context, bool be_compatible);
|
|
void cw_pack_set_flush_handler (cw_pack_context* pack_context, pack_flush_handler handle_flush);
|
|
void cw_pack_flush (cw_pack_context* pack_context);
|
|
|
|
void cw_pack_nil (cw_pack_context* pack_context);
|
|
void cw_pack_true (cw_pack_context* pack_context);
|
|
void cw_pack_false (cw_pack_context* pack_context);
|
|
void cw_pack_boolean (cw_pack_context* pack_context, bool b);
|
|
|
|
void cw_pack_signed (cw_pack_context* pack_context, int64_t i);
|
|
void cw_pack_unsigned (cw_pack_context* pack_context, uint64_t i);
|
|
|
|
void cw_pack_float (cw_pack_context* pack_context, float f);
|
|
void cw_pack_double (cw_pack_context* pack_context, double d);
|
|
/* void cw_pack_real (cw_pack_context* pack_context, double d); moved to cwpack_utils */
|
|
|
|
void cw_pack_array_size (cw_pack_context* pack_context, uint32_t n);
|
|
void cw_pack_map_size (cw_pack_context* pack_context, uint32_t n);
|
|
void cw_pack_str (cw_pack_context* pack_context, const char* v, uint32_t l);
|
|
void cw_pack_bin (cw_pack_context* pack_context, const void* v, uint32_t l);
|
|
void cw_pack_ext (cw_pack_context* pack_context, int8_t type, const void* v, uint32_t l);
|
|
void cw_pack_time (cw_pack_context* pack_context, int64_t sec, uint32_t nsec);
|
|
|
|
void cw_pack_insert (cw_pack_context* pack_context, const void* v, uint32_t l);
|
|
|
|
|
|
/***************************** U N P A C K ********************************/
|
|
|
|
|
|
typedef enum
|
|
{
|
|
CWP_ITEM_MIN_RESERVED_EXT = -128,
|
|
CWP_ITEM_TIMESTAMP = -1,
|
|
CWP_ITEM_MAX_RESERVED_EXT = -1,
|
|
CWP_ITEM_MIN_USER_EXT = 0,
|
|
CWP_ITEM_MAX_USER_EXT = 127,
|
|
CWP_ITEM_NIL = 300,
|
|
CWP_ITEM_BOOLEAN = 301,
|
|
CWP_ITEM_POSITIVE_INTEGER = 302,
|
|
CWP_ITEM_NEGATIVE_INTEGER = 303,
|
|
CWP_ITEM_FLOAT = 304,
|
|
CWP_ITEM_DOUBLE = 305,
|
|
CWP_ITEM_STR = 306,
|
|
CWP_ITEM_BIN = 307,
|
|
CWP_ITEM_ARRAY = 308,
|
|
CWP_ITEM_MAP = 309,
|
|
CWP_ITEM_EXT = 310,
|
|
CWP_NOT_AN_ITEM = 999,
|
|
} cwpack_item_types;
|
|
|
|
|
|
typedef struct {
|
|
const void* start;
|
|
uint32_t length;
|
|
} cwpack_blob;
|
|
|
|
|
|
typedef struct {
|
|
uint32_t size;
|
|
} cwpack_container;
|
|
|
|
|
|
typedef struct {
|
|
int64_t tv_sec;
|
|
uint32_t tv_nsec;
|
|
} cwpack_timespec;
|
|
|
|
|
|
typedef struct {
|
|
cwpack_item_types type;
|
|
union
|
|
{
|
|
bool boolean;
|
|
uint64_t u64;
|
|
int64_t i64;
|
|
float real;
|
|
double long_real;
|
|
cwpack_container array;
|
|
cwpack_container map;
|
|
cwpack_blob str;
|
|
cwpack_blob bin;
|
|
cwpack_blob ext;
|
|
cwpack_timespec time;
|
|
} as;
|
|
} cwpack_item;
|
|
|
|
struct cw_unpack_context;
|
|
|
|
typedef int (*unpack_underflow_handler)(struct cw_unpack_context*, unsigned long);
|
|
|
|
typedef struct cw_unpack_context {
|
|
cwpack_item item;
|
|
uint8_t* start;
|
|
uint8_t* current;
|
|
uint8_t* end; /* logical end of buffer */
|
|
int return_code;
|
|
int err_no; /* handlers can save error here */
|
|
unpack_underflow_handler handle_unpack_underflow;
|
|
} cw_unpack_context;
|
|
|
|
|
|
|
|
int cw_unpack_context_init (cw_unpack_context* unpack_context, const void* data, unsigned long length, unpack_underflow_handler huu);
|
|
|
|
void cw_unpack_next (cw_unpack_context* unpack_context);
|
|
void cw_skip_items (cw_unpack_context* unpack_context, long item_count);
|
|
|
|
|
|
#endif /* CWPack_H__ */
|