jer_support.h

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/*
 * Copyright (c) 2003, 2004 X/IO Labs, xiolabs.com.
 * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
 * Redistribution and modifications are permitted subject to BSD license.
 */
#ifndef _JER_SUPPORT_H_
#define _JER_SUPPORT_H_
 
#include <etsi_its_spatem_ts_coding/asn_system.h>               /* Platform-specific types */
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*
 * Pre-computed JER constraints
 */
typedef struct asn_jer_constraints_s {
    ssize_t size;    /* -1 (no constraint) or >= 0 */
} asn_jer_constraints_t;
 
/*
 * Types of data transferred to the application.
 */
typedef enum {
        PJSON_TEXT,
        PJSON_KEY,
        PJSON_VALUE,
        PJSON_DLM,
        /* 
         * The following chunk types are reported if the chunk
         * terminates the specified JSON element.
         */
        PJSON_KEY_END,   /* Key ended */
        PJSON_VALUE_END  /* Value ended */
} pjson_chunk_type_e;
 
/*
 * Callback function that is called by the parser when parsed data is
 * available. The _opaque is the pointer to a field containing opaque user 
 * data specified in pxml_create() call. The chunk type is _type and the text 
 * data is the piece of buffer identified by _bufid (as supplied to
 * pxml_feed() call) starting at offset _offset and of _size bytes size. 
 * The chunk is NOT '\0'-terminated.
 */
typedef int (pjson_callback_f)(pjson_chunk_type_e _type,
        const void *_chunk_data, size_t _chunk_size, void *_key);
 
/*
 * Parse the given buffer as it were a chunk of XML data.
 * Invoke the specified callback each time the meaningful data is found.
 * This function returns number of bytes consumed from the buffer.
 * It will always be lesser than or equal to the specified _size.
 * The next invocation of this function must account the difference.
 */
ssize_t pjson_parse(int *_stateContext, const void *_buf, size_t _size,
        pjson_callback_f *cb, void *_key);
 
#ifdef __cplusplus
}
#endif
 
#endif  /* _JER_SUPPORT_H_ */