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43 lines
1.4 KiB
43 lines
1.4 KiB
4 years ago
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/* pb_common.h: Common support functions for pb_encode.c and pb_decode.c.
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* These functions are rarely needed by applications directly.
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*/
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#ifndef PB_COMMON_H_INCLUDED
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#define PB_COMMON_H_INCLUDED
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#include "pb.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Iterator for pb_field_t list */
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struct pb_field_iter_s {
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const pb_field_t *start; /* Start of the pb_field_t array */
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const pb_field_t *pos; /* Current position of the iterator */
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unsigned required_field_index; /* Zero-based index that counts only the required fields */
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void *dest_struct; /* Pointer to start of the structure */
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void *pData; /* Pointer to current field value */
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void *pSize; /* Pointer to count/has field */
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};
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typedef struct pb_field_iter_s pb_field_iter_t;
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/* Initialize the field iterator structure to beginning.
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* Returns false if the message type is empty. */
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bool pb_field_iter_begin(pb_field_iter_t *iter, const pb_field_t *fields, void *dest_struct);
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/* Advance the iterator to the next field.
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* Returns false when the iterator wraps back to the first field. */
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bool pb_field_iter_next(pb_field_iter_t *iter);
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/* Advance the iterator until it points at a field with the given tag.
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* Returns false if no such field exists. */
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bool pb_field_iter_find(pb_field_iter_t *iter, uint32_t tag);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif
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