mleku/libblkmaker
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blkmk_init_generation3 capable of overriding a provided coinbasetxn if the generation mutation is allowed

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This commit is contained in:
Luke Dashjr
2013-08-24 16:54:03 +00:00
parent 5c704c60d6
commit b84806651c
4 changed files with 23 additions and 8 deletions
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23
blkmaker.c
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@@ -41,16 +41,14 @@ bool _blkmk_dblsha256(void *hash, const void *data, size_t datasz) {
#define dblsha256 _blkmk_dblsha256
uint64_t blkmk_init_generation2(blktemplate_t *tmpl, void *script, size_t scriptsz, bool *out_newcb) {
if (tmpl->cbtxn)
uint64_t blkmk_init_generation3(blktemplate_t * const tmpl, const void * const script, const size_t scriptsz, bool * const inout_newcb) {
if (tmpl->cbtxn && !(*inout_newcb && (tmpl->mutations & BMM_GENERATE)))
{
if (out_newcb)
*out_newcb = false;
*inout_newcb = false;
return 0;
}
if (out_newcb)
*out_newcb = true;
*inout_newcb = true;
size_t datasz = 62 + sizeof(blkheight_t) + scriptsz;
unsigned char *data = malloc(datasz);
@@ -101,6 +99,11 @@ uint64_t blkmk_init_generation2(blktemplate_t *tmpl, void *script, size_t script
txn->data = data;
txn->datasz = off;
if (tmpl->cbtxn)
{
_blktxn_free(tmpl->cbtxn);
free(tmpl->cbtxn);
}
tmpl->cbtxn = txn;
tmpl->mutations |= BMM_CBAPPEND | BMM_CBSET | BMM_GENERATE;
@@ -108,6 +111,14 @@ uint64_t blkmk_init_generation2(blktemplate_t *tmpl, void *script, size_t script
return tmpl->cbvalue;
}
uint64_t blkmk_init_generation2(blktemplate_t *tmpl, void *script, size_t scriptsz, bool *out_newcb) {
bool tmp;
if (!out_newcb)
out_newcb = &tmp;
*out_newcb = false;
blkmk_init_generation3(tmpl, script, scriptsz, out_newcb);
}
uint64_t blkmk_init_generation(blktemplate_t *tmpl, void *script, size_t scriptsz) {
return blkmk_init_generation2(tmpl, script, scriptsz, NULL);
}

1
blkmaker.h
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@@ -14,6 +14,7 @@ extern bool (*blkmk_sha256_impl)(void *hash_out, const void *data, size_t datasz
extern uint64_t blkmk_init_generation(blktemplate_t *, void *script, size_t scriptsz);
extern uint64_t blkmk_init_generation2(blktemplate_t *, void *script, size_t scriptsz, bool *out_newcb);
extern uint64_t blkmk_init_generation3(blktemplate_t *, const void *script, size_t scriptsz, bool *inout_newcb);
extern ssize_t blkmk_append_coinbase_safe(blktemplate_t *, const void *append, size_t appendsz);
extern bool _blkmk_extranonce(blktemplate_t *tmpl, void *vout, unsigned int workid, size_t *offs);
extern size_t blkmk_get_data(blktemplate_t *, void *buf, size_t bufsz, time_t usetime, int16_t *out_expire, unsigned int *out_dataid);

4
blktemplate.c
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@@ -93,12 +93,12 @@ bool blktmpl_get_submitold(blktemplate_t *tmpl) {
return tmpl->submitold;
}
static
void blktxn_free(struct blktxn_t *bt) {
void _blktxn_free(struct blktxn_t *bt) {
free(bt->data);
free(bt->hash);
free(bt->depends);
}
#define blktxn_free _blktxn_free
void blktmpl_free(blktemplate_t *tmpl) {
for (unsigned long i = 0; i < tmpl->txncount; ++i)

3
private.h
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@@ -7,6 +7,9 @@
// blkmaker.c
extern bool _blkmk_dblsha256(void *hash, const void *data, size_t datasz);
// blktemplate.c
extern void _blktxn_free(struct blktxn_t *);
// hex.c
extern void _blkmk_bin2hex(char *out, const void *data, size_t datasz);
extern bool _blkmk_hex2bin(void *o, const char *x, size_t len);