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59 lines
1.8 KiB
59 lines
1.8 KiB
#ifndef LIGHTNING_COMMON_UTILS_H
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#define LIGHTNING_COMMON_UTILS_H
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#include "config.h"
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#include <ccan/crypto/ripemd160/ripemd160.h>
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#include <ccan/crypto/sha256/sha256.h>
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#include <ccan/short_types/short_types.h>
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#include <ccan/structeq/structeq.h>
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#include <ccan/tal/tal.h>
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#include <secp256k1.h>
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extern secp256k1_context *secp256k1_ctx;
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/* Allocate and fill in a hex-encoded string of this data. */
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char *tal_hexstr(const tal_t *ctx, const void *data, size_t len);
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/* Allocate and fill a hex-encoding of this tal pointer. */
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char *tal_hex(const tal_t *ctx, const tal_t *data);
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/* Allocate and fill a buffer with the data of this hex string. */
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u8 *tal_hexdata(const tal_t *ctx, const void *str, size_t len);
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/* Helper macro to extend tal_arr and return pointer new last element. */
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#if HAVE_STATEMENT_EXPR
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/* More efficient version calls tal_count() once */
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#define tal_arr_expand(p) \
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({ size_t n = tal_count(*p); tal_resize((p), n+1); *(p) + n; })
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#else
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#define tal_arr_expand(p) \
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(tal_resize((p), tal_count(*(p))+1), (*p) + tal_count(*(p))-1)
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#endif
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/**
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* Remove an element from an array
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*
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* This will shift the elements past the removed element, changing
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* their position in memory, so only use this for arrays of pointers.
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*/
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#define tal_arr_remove(p, n) tal_arr_remove_((p), sizeof(**p), (n))
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void tal_arr_remove_(void *p, size_t elemsize, size_t n);
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/* Use the POSIX C locale. */
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void setup_locale(void);
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/* Global temporary convenience context: children freed in io loop core. */
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extern const tal_t *tmpctx;
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/* Initial creation of tmpctx. */
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void setup_tmpctx(void);
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/* Free any children of tmpctx. */
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void clean_tmpctx(void);
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/* Define sha256_eq. */
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STRUCTEQ_DEF(sha256, 0, u);
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/* Define ripemd160_eq. */
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STRUCTEQ_DEF(ripemd160, 0, u);
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#endif /* LIGHTNING_COMMON_UTILS_H */
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