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Implement blkmk_count_sigops

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Luke Dashjr
2016-07-26 02:59:38 +00:00
parent 1cf20a8348
commit e37ae9022b
1 changed files with 31 additions and 0 deletions
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31
blkmaker.c
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@@ -78,6 +78,37 @@ char varintEncode(unsigned char *out, uint64_t n) {
return L;
}
static
int16_t blkmk_count_sigops(const uint8_t * const script, const size_t scriptsz) {
int16_t sigops = 0;
for (size_t i = 0; i < scriptsz; ++i) {
if (script[i] <= 0x4c /* OP_PUSHDATA1 */) {
if (script[i] == 0x4c) {
if (i + 1 >= scriptsz) {
break;
}
++i;
}
i += script[i];
} else if (script[i] == 0x4d /* OP_PUSHDATA2 */) {
if (i + 2 >= scriptsz) {
break;
}
i += 2 + upk_u16le(script, i + 1);
} else if (script[i] == 0x4e /* OP_PUSHDATA4 */) {
if (i + 4 >= scriptsz) {
break;
}
i += 4 + upk_u32le(script, i + 1);
} else if (script[i] == 0xac /* OP_CHECKSIG */ || script[i] == 0xad /* OP_CHECKSIGVERIFY */) {
++sigops;
} else if (script[i] == 0xae /* OP_CHECKMULTISIG */ || script[i] == 0xaf /* OP_CHECKMULTISIGVERIFY */) {
sigops += 20;
}
}
return sigops;
}
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)))
{