accd93be8d
git-svn-id: https://svn.kapsi.fi/jpa/nanopb-dev@1088 e3a754e5-d11d-0410-8d38-ebb782a927b9
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
#ifndef _PB_ENCODE_BUFFER_H_
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#define _PB_ENCODE_BUFFER_H_
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/* pb_encode_buffer.h: Functions to encode protocol buffers to an
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* in-memory array of bytes. Depends on pb_encode_buffer.c. The main
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* function is pb_encode_buffer. You also need an output buffer,
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* structures and their field descriptions (just like with pb_decode
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* or pb_encode).
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*/
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#include <stdbool.h>
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#include "pb.h"
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/* Output stream for an in-memory buffer.
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*/
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struct _pb_strstream_t
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{
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uint8_t *buffer;
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uint8_t *last;
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};
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pb_strstream_t pb_strstream_from_buffer(uint8_t *buf, size_t bufsize);
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bool pb_buf_write(pb_strstream_t *stream, const uint8_t *buf, size_t count);
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/* --- Helper functions ---
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* You may want to use these from your caller or callbacks.
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*/
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bool pb_encbuf_varint(pb_strstream_t *stream, uint64_t value);
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bool pb_encbuf_tag(pb_strstream_t *stream, pb_wire_type_t wiretype, int field_number);
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/* Encode tag based on LTYPE and field number defined in the field structure. */
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bool pb_encbuf_tag_for_field(pb_strstream_t *stream, const pb_field_t *field);
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/* Write length as varint and then the contents of buffer. */
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bool pb_encbuf_string(pb_strstream_t *stream, const uint8_t *buffer, size_t size);
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/* Encode struct to given output stream.
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* Returns true on success, false on any failure.
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* The actual struct pointed to by src_struct must match the description in msg.
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* All required fields in the struct are assumed to have been filled in.
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*/
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bool pb_encode_buffer(pb_strstream_t *stream, const pb_message_t *msg, const void *src_struct);
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#endif
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