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Tests for callback fields

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git-svn-id: https://svn.kapsi.fi/jpa/nanopb@974 e3a754e5-d11d-0410-8d38-ebb782a927b9
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Petteri Aimonen
2011-09-12 18:53:33 +00:00
parent 35814517ad
commit d4abb63c05
7 changed files with 109 additions and 3 deletions
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docs/concepts.rst
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@@ -201,7 +201,7 @@ Decoding callbacks
bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void *arg);
When decoding, the callback receives a length-limited substring that reads the contents of a single field. The field tag has already been read.
When decoding, the callback receives a length-limited substring that reads the contents of a single field. The field tag has already been read. For *string* and *bytes*, the length value has already been parsed, and is available at *stream->bytes_left*.
The callback will be called multiple times for repeated fields. For packed fields, you can either read multiple values until the stream ends, or leave it to `pb_decode`_ to call your function over and over until all values have been read.