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| author | chriseth <c@ethdev.com> | 2016-11-14 18:46:43 +0800 |
|---|---|---|
| committer | chriseth <c@ethdev.com> | 2016-12-01 23:03:59 +0800 |
| commit | 5789eaa78d0e00f6289101e02f7de5e9decdc7e5 (patch) | |
| tree | 8964f493235d310baa50806fdff65138054d2439 /libdevcore | |
| parent | 55a719a79c1ab5b78ea6e1bcb4f27a888494a538 (diff) | |
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Metadata stamp.
Diffstat (limited to 'libdevcore')
| -rw-r--r-- | libdevcore/SwarmHash.cpp | 12 | ||||
| -rw-r--r-- | libdevcore/SwarmHash.h | 5 |
2 files changed, 10 insertions, 7 deletions
diff --git a/libdevcore/SwarmHash.cpp b/libdevcore/SwarmHash.cpp index e7b844eb..aa98eafd 100644 --- a/libdevcore/SwarmHash.cpp +++ b/libdevcore/SwarmHash.cpp @@ -38,13 +38,14 @@ h256 swarmHashSimple(bytesConstRef _data, size_t _size) return keccak256(toLittleEndian(_size) + _data.toBytes()); } -h256 swarmHashIntermediate(bytes const& _input, size_t _offset, size_t _length) +h256 swarmHashIntermediate(string const& _input, size_t _offset, size_t _length) { + bytesConstRef ref; + bytes innerNodes; if (_length <= 0x1000) - return swarmHashSimple(bytesConstRef(_input.data() + _offset, _length), _length); + ref = bytesConstRef(_input).cropped(_offset, _length); else { - bytes innerNodes; size_t maxRepresentedSize = 0x1000; while (maxRepresentedSize * (0x1000 / 32) < _length) maxRepresentedSize *= (0x1000 / 32); @@ -53,11 +54,12 @@ h256 swarmHashIntermediate(bytes const& _input, size_t _offset, size_t _length) size_t size = std::min(maxRepresentedSize, _length - i); innerNodes += swarmHashIntermediate(_input, _offset + i, size).asBytes(); } - return swarmHashSimple(bytesConstRef(&innerNodes), _length); + ref = bytesConstRef(&innerNodes); } + return swarmHashSimple(ref, _length); } -h256 dev::swarmHash(bytes const& _input) +h256 dev::swarmHash(string const& _input) { return swarmHashIntermediate(_input, 0, _input.size()); } diff --git a/libdevcore/SwarmHash.h b/libdevcore/SwarmHash.h index 925509ab..f474ce11 100644 --- a/libdevcore/SwarmHash.h +++ b/libdevcore/SwarmHash.h @@ -20,12 +20,13 @@ #pragma once #include <libdevcore/FixedHash.h> -#include <libdevcore/Common.h> + +#include <string> namespace dev { /// Compute the "swarm hash" of @a _data -h256 swarmHash(bytes const& _data); +h256 swarmHash(std::string const& _data); } |