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common/amount: new types struct amount_msat and struct amount_sat.

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They're generally used pass-by-copy (unusual for C structs, but
convenient they're basically u64) and all possibly problematic
operations return WARN_UNUSED_RESULT bool to make you handle the
over/underflow cases.

The new #include in json.h means we bolt11.c sees the amount.h definition
of MSAT_PER_BTC, so delete its local version.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2019-02-20 22:01:48 +10:30
parent 269dbe585c
commit 7fad7bccba
25 changed files with 780 additions and 5 deletions
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5
wire/wire.h
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@@ -10,6 +10,7 @@
#include <ccan/crypto/sha256/sha256.h>
#include <ccan/short_types/short_types.h>
#include <ccan/structeq/structeq.h>
#include <common/amount.h>
#include <secp256k1_recovery.h>
#include <stdlib.h>
@@ -56,6 +57,8 @@ void towire_bitcoin_signature(u8 **pptr, const struct bitcoin_signature *sig);
void towire_bitcoin_blkid(u8 **pptr, const struct bitcoin_blkid *blkid);
void towire_preimage(u8 **pptr, const struct preimage *preimage);
void towire_ripemd160(u8 **pptr, const struct ripemd160 *ripemd);
void towire_amount_msat(u8 **pptr, const struct amount_msat msat);
void towire_amount_sat(u8 **pptr, const struct amount_sat sat);
void towire_u8(u8 **pptr, u8 v);
void towire_u16(u8 **pptr, u16 v);
void towire_u32(u8 **pptr, u32 v);
@@ -102,6 +105,8 @@ void fromwire_bitcoin_blkid(const u8 **cursor, size_t *max,
struct bitcoin_blkid *blkid);
void fromwire_preimage(const u8 **cursor, size_t *max, struct preimage *preimage);
void fromwire_ripemd160(const u8 **cursor, size_t *max, struct ripemd160 *ripemd);
struct amount_msat fromwire_amount_msat(const u8 **cursor, size_t *max);
struct amount_sat fromwire_amount_sat(const u8 **cursor, size_t *max);
void fromwire_pad(const u8 **cursor, size_t *max, size_t num);
void fromwire_u8_array(const u8 **cursor, size_t *max, u8 *arr, size_t num);