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#ifndef LIGHTNING_COMMON_BIGSIZE_H
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#define LIGHTNING_COMMON_BIGSIZE_H
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#include "config.h"
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#include <ccan/short_types/short_types.h>
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#include <stddef.h>
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/* typedef for clarity. */
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typedef u64 bigsize_t;
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#define BIGSIZE_MAX_LEN 9
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/* Returns length of buf used. */
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size_t bigsize_put(u8 buf[BIGSIZE_MAX_LEN], bigsize_t v);
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/* Returns 0 on failure, otherwise length (<= max) used. */
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size_t bigsize_get(const u8 *p, size_t max, bigsize_t *val);
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/* How many bytes does it take to encode v? */
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size_t bigsize_len(bigsize_t v);
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/* Used for wire generation */
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typedef bigsize_t bigsize;
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/* FIXME: Some versions of spec using 'varint' for bigsize' */
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typedef bigsize varint;
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#define fromwire_varint fromwire_bigsize
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#define towire_varint towire_bigsize
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/* marshal/unmarshal functions */
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void towire_bigsize(u8 **pptr, const bigsize_t val);
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bigsize_t fromwire_bigsize(const u8 **cursor, size_t *max);
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#endif /* LIGHTNING_COMMON_BIGSIZE_H */
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