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Add capn_(inflate|deflate) for converting to/from the packed form

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This commit is contained in:
James McKaskill 2013-05-06 01:15:24 -04:00
parent e0a5769d06
commit 12d72511b1
3 changed files with 215 additions and 1 deletions
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27
capn.h
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@ -212,6 +212,33 @@ CAPN_INLINE int capn_set64(struct capn_ptr *p, int off, uint64_t val);
void capn_init_malloc(struct capn *c);
void capn_free_all(struct capn *c);
/* capn_stream encapsulates the needed fields for capn_(deflate|inflate) in a
* similar manner to z_stream from zlib
*
* The user should set next_in, avail_in, next_out, avail_out to the
* available in/out buffers before calling capn_(deflate|inflate).
*
* Other fields should be zero initialized.
*/
struct capn_stream {
uint8_t *next_in;
int avail_in;
uint8_t *next_out;
int avail_out;
int zeros, raw;
};
#define CAPN_NEED_MORE_IN -1
#define CAPN_NEED_MORE_OUT -2
/* capn_deflate deflates a stream to the packed format
* capn_inflate inflates a stream from the packed format
*
* They will return CAPN_NEED_MORE_(IN|OUT) as appropriate or 0 if the entire
* input has been processed.
*/
int capn_deflate(struct capn_stream*);
int capn_inflate(struct capn_stream*);
int capn_marshal_iptr(const union capn_iptr*, struct capn_ptr*, int off);