diff options
Diffstat (limited to 'src/script/script.h')
| -rw-r--r-- | src/script/script.h | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/script/script.h b/src/script/script.h index d16bfd0e00..587f2d26eb 100644 --- a/src/script/script.h +++ b/src/script/script.h @@ -377,6 +377,12 @@ private: int64_t m_value; }; +/** + * We use a prevector for the script to reduce the considerable memory overhead + * of vectors in cases where they normally contain a small number of small elements. + * Tests in October 2015 showed use of this reduced dbcache memory usage by 23% + * and made an initial sync 13% faster. + */ typedef prevector<28, unsigned char> CScriptBase; /** Serialized script, used inside transaction inputs and outputs */ @@ -498,7 +504,7 @@ public: bool GetOp(iterator& pc, opcodetype& opcodeRet) { const_iterator pc2 = pc; - bool fRet = GetOp2(pc2, opcodeRet, NULL); + bool fRet = GetOp2(pc2, opcodeRet, nullptr); pc = begin() + (pc2 - begin()); return fRet; } @@ -510,7 +516,7 @@ public: bool GetOp(const_iterator& pc, opcodetype& opcodeRet) const { - return GetOp2(pc, opcodeRet, NULL); + return GetOp2(pc, opcodeRet, nullptr); } bool GetOp2(const_iterator& pc, opcodetype& opcodeRet, std::vector<unsigned char>* pvchRet) const |