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Update ethash

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This commit is contained in:
obscuren 2015-04-05 15:14:55 +02:00
parent 5b9a0e7118
commit 09d3f2cf2a
22 changed files with 746 additions and 129 deletions
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4
Godeps/Godeps.json generated
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@ -22,8 +22,8 @@
},
{
"ImportPath": "github.com/ethereum/ethash",
"Comment": "v23.1-33-g6ecb8e6",
"Rev": "6ecb8e610d60240187b44f61e66b06198c26fae6"
"Comment": "v23.1-72-g0ac34ad",
"Rev": "0ac34ad51ef0ffdae66b344603bb4e9e2a149b2a"
},
{
"ImportPath": "github.com/ethereum/serpent-go",

14
Godeps/_workspace/src/github.com/ethereum/ethash/.travis.yml generated vendored
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@ -1,6 +1,14 @@
# making our travis.yml play well with C++11 by obtaining g++4.8
# Taken from this file:
# https://github.com/beark/ftl/blob/master/.travis.yml
before_install:
- sudo apt-get update -qq
- sudo apt-get install -qq wget cmake gcc bash libboost-test-dev nodejs python-pip python-dev
- sudo pip install virtualenv -q
- sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
- sudo apt-get update -y -qq
install:
- sudo apt-get install -qq --yes --force-yes g++-4.8
- sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 50
# need to explicitly request version 1.48 since by default we get 1.46 which does not work with C++11
- sudo apt-get install -qq wget cmake bash libboost-test1.48-dev libboost-system1.48-dev libboost-filesystem1.48-dev nodejs python-pip python-dev
- sudo pip install virtualenv -q
script: "./test/test.sh"

2
Godeps/_workspace/src/github.com/ethereum/ethash/CMakeLists.txt generated vendored
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@ -18,4 +18,4 @@ if (OpenCL_FOUND)
add_subdirectory(src/libethash-cl)
endif()
add_subdirectory(src/benchmark EXCLUDE_FROM_ALL)
add_subdirectory(test/c EXCLUDE_FROM_ALL)
add_subdirectory(test/c)

16
Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go generated vendored
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@ -85,7 +85,7 @@ func makeParamsAndCache(chainManager pow.ChainManager, blockNum uint64) (*Params
Epoch: blockNum / epochLength,
}
C.ethash_params_init(paramsAndCache.params, C.uint32_t(uint32(blockNum)))
paramsAndCache.cache.mem = C.malloc(paramsAndCache.params.cache_size)
paramsAndCache.cache.mem = C.malloc(C.size_t(paramsAndCache.params.cache_size))
seedHash, err := GetSeedHash(blockNum)
if err != nil {
@ -100,14 +100,14 @@ func makeParamsAndCache(chainManager pow.ChainManager, blockNum uint64) (*Params
return paramsAndCache, nil
}
func (pow *Ethash) UpdateCache(force bool) error {
func (pow *Ethash) UpdateCache(blockNum uint64, force bool) error {
pow.cacheMutex.Lock()
defer pow.cacheMutex.Unlock()
thisEpoch := pow.chainManager.CurrentBlock().NumberU64() / epochLength
thisEpoch := blockNum / epochLength
if force || pow.paramsAndCache.Epoch != thisEpoch {
var err error
pow.paramsAndCache, err = makeParamsAndCache(pow.chainManager, pow.chainManager.CurrentBlock().NumberU64())
pow.paramsAndCache, err = makeParamsAndCache(pow.chainManager, blockNum)
if err != nil {
panic(err)
}
@ -118,7 +118,7 @@ func (pow *Ethash) UpdateCache(force bool) error {
func makeDAG(p *ParamsAndCache) *DAG {
d := &DAG{
dag: C.malloc(p.params.full_size),
dag: C.malloc(C.size_t(p.params.full_size)),
file: false,
paramsAndCache: p,
}
@ -386,13 +386,13 @@ func (pow *Ethash) verify(hash common.Hash, mixDigest common.Hash, difficulty *b
if blockNum/epochLength < pow.paramsAndCache.Epoch {
var err error
// If we can't make the params for some reason, this block is invalid
pAc, err = makeParamsAndCache(pow.chainManager, blockNum)
pAc, err = makeParamsAndCache(pow.chainManager, blockNum+1)
if err != nil {
powlogger.Infoln(err)
powlogger.Infoln("big fucking eror", err)
return false
}
} else {
pow.UpdateCache(false)
pow.UpdateCache(blockNum, false)
pow.cacheMutex.RLock()
defer pow.cacheMutex.RUnlock()
pAc = pow.paramsAndCache

5
Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/CMakeLists.txt generated vendored
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@ -6,6 +6,11 @@ if (MSVC)
add_definitions("/openmp")
endif()
# enable C++11, should probably be a bit more specific about compiler
if (NOT MSVC)
SET(CMAKE_CXX_FLAGS "-std=c++11")
endif()
if (NOT MPI_FOUND)
find_package(MPI)
endif()

60
Godeps/_workspace/src/github.com/ethereum/ethash/src/benchmark/benchmark.cpp generated vendored
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@ -21,7 +21,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <chrono>
#include <libethash/ethash.h>
#include <libethash/util.h>
#ifdef OPENCL
@ -41,6 +41,8 @@
#undef min
#undef max
using std::chrono::high_resolution_clock;
#if defined(OPENCL)
const unsigned trials = 1024*1024*32;
#elif defined(FULL)
@ -122,50 +124,50 @@ extern "C" int main(void)
// compute cache or full data
{
clock_t startTime = clock();
auto startTime = high_resolution_clock::now();
ethash_mkcache(&cache, &params, seed);
clock_t time = clock() - startTime;
auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count();
uint8_t cache_hash[32];
SHA3_256(cache_hash, (uint8_t const*)cache_mem, params.cache_size);
debugf("ethash_mkcache: %ums, sha3: %s\n", (unsigned)((time*1000)/CLOCKS_PER_SEC), bytesToHexString(cache_hash,sizeof(cache_hash)).data());
debugf("ethash_mkcache: %ums, sha3: %s\n", (unsigned)time, bytesToHexString(cache_hash,sizeof(cache_hash)).data());
// print a couple of test hashes
{
const clock_t startTime = clock();
auto startTime = high_resolution_clock::now();
ethash_return_value hash;
ethash_light(&hash, &cache, &params, previous_hash, 0);
const clock_t time = clock() - startTime;
debugf("ethash_light test: %ums, %s\n", (unsigned)((time*1000)/CLOCKS_PER_SEC), bytesToHexString(hash.result, 32).data());
auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count();
debugf("ethash_light test: %ums, %s\n", (unsigned)time, bytesToHexString(hash.result, 32).data());
}
#ifdef FULL
startTime = clock();
startTime = high_resolution_clock::now();
ethash_compute_full_data(full_mem, &params, &cache);
time = clock() - startTime;
debugf("ethash_compute_full_data: %ums\n", (unsigned)((time*1000)/CLOCKS_PER_SEC));
time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count();
debugf("ethash_compute_full_data: %ums\n", (unsigned)time);
#endif // FULL
}
#ifdef OPENCL
ethash_cl_miner miner;
{
const clock_t startTime = clock();
auto startTime = high_resolution_clock::now();
if (!miner.init(params, seed))
exit(-1);
const clock_t time = clock() - startTime;
debugf("ethash_cl_miner init: %ums\n", (unsigned)((time*1000)/CLOCKS_PER_SEC));
auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count();
debugf("ethash_cl_miner init: %ums\n", (unsigned)time);
}
#endif
#ifdef FULL
{
const clock_t startTime = clock();
auto startTime = high_resolution_clock::now();
ethash_return_value hash;
ethash_full(&hash, full_mem, &params, previous_hash, 0);
const clock_t time = clock() - startTime;
debugf("ethash_full test: %uns, %s\n", (unsigned)((time*1000000)/CLOCKS_PER_SEC), bytesToHexString(hash.result, 32).data());
auto time = std::chrono::duration_cast<std::chrono::milliseconds>(high_resolution_clock::now() - startTime).count();
debugf("ethash_full test: %uns, %s\n", (unsigned)time);
}
#endif
@ -186,10 +188,12 @@ extern "C" int main(void)
}
}
}
// ensure nothing else is going on
miner.finish();
#endif
clock_t startTime = clock();
auto startTime = high_resolution_clock::now();
unsigned hash_count = trials;
#ifdef OPENCL
@ -201,7 +205,7 @@ extern "C" int main(void)
virtual bool found(uint64_t const* nonces, uint32_t count)
{
nonce_vec.assign(nonces, nonces + count);
nonce_vec.insert(nonce_vec.end(), nonces, nonces + count);
return false;
}
@ -241,15 +245,23 @@ extern "C" int main(void)
}
}
#endif
clock_t time = std::max((clock_t)1u, clock() - startTime);
auto time = std::chrono::duration_cast<std::chrono::microseconds>(high_resolution_clock::now() - startTime).count();
debugf("Search took: %ums\n", (unsigned)time/1000);
unsigned read_size = ACCESSES * MIX_BYTES;
#if defined(OPENCL) || defined(FULL)
debugf(
"hashrate: %8u, bw: %6u MB/s\n",
(unsigned)(((uint64_t)hash_count*CLOCKS_PER_SEC)/time),
(unsigned)((((uint64_t)hash_count*read_size*CLOCKS_PER_SEC)/time) / (1024*1024))
"hashrate: %8.2f Mh/s, bw: %8.2f GB/s\n",
(double)hash_count * (1000*1000)/time / (1000*1000),
(double)hash_count*read_size * (1000*1000)/time / (1024*1024*1024)
);
#else
debugf(
"hashrate: %8.2f Kh/s, bw: %8.2f MB/s\n",
(double)hash_count * (1000*1000)/time / (1000),
(double)hash_count*read_size * (1000*1000)/time / (1024*1024)
);
#endif
free(cache_mem_buf);
#ifdef FULL

7
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/CMakeLists.txt generated vendored
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@ -1,3 +1,5 @@
cmake_minimum_required(VERSION 2.8)
set(LIBRARY ethash-cl)
set(CMAKE_BUILD_TYPE Release)
@ -28,11 +30,16 @@ if (NOT MSVC)
endif ()
endif()
set(OpenCL_FOUND TRUE)
set(OpenCL_INCLUDE_DIRS /usr/include/CL)
set(OpenCL_LIBRARIES -lOpenCL)
if (NOT OpenCL_FOUND)
find_package(OpenCL)
endif()
if (OpenCL_FOUND)
set(CMAKE_CXX_FLAGS "-std=c++11 -Wall -Wno-unknown-pragmas -Wextra -Werror -pedantic -fPIC ${CMAKE_CXX_FLAGS}")
include_directories(${OpenCL_INCLUDE_DIRS} ${CMAKE_CURRENT_BINARY_DIR})
include_directories(..)
add_library(${LIBRARY} ethash_cl_miner.cpp ethash_cl_miner.h cl.hpp)

16
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.cpp generated vendored
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@ -22,6 +22,8 @@
#define _CRT_SECURE_NO_WARNINGS
#include <cstdio>
#include <cstdlib>
#include <assert.h>
#include <queue>
#include <vector>
@ -52,6 +54,14 @@ ethash_cl_miner::ethash_cl_miner()
{
}
void ethash_cl_miner::finish()
{
if (m_queue())
{
m_queue.finish();
}
}
bool ethash_cl_miner::init(ethash_params const& params, const uint8_t seed[32], unsigned workgroup_size)
{
// store params
@ -95,7 +105,7 @@ bool ethash_cl_miner::init(ethash_params const& params, const uint8_t seed[32],
}
// create context
m_context = cl::Context(std::vector<cl::Device>(&device, &device+1));
m_context = cl::Context(std::vector<cl::Device>(&device, &device + 1));
m_queue = cl::CommandQueue(m_context, device);
// use requested workgroup size, but we require multiple of 8
@ -308,6 +318,10 @@ void ethash_cl_miner::search(uint8_t const* header, uint64_t target, search_hook
if (exit)
break;
// reset search buffer if we're still going
if (num_found)
m_queue.enqueueWriteBuffer(m_search_buf[batch.buf], true, 0, 4, &c_zero);
pending.pop();
}
}

1
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash-cl/ethash_cl_miner.h generated vendored
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@ -21,6 +21,7 @@ public:
bool init(ethash_params const& params, const uint8_t seed[32], unsigned workgroup_size = 64);
void finish();
void hash(uint8_t* ret, uint8_t const* header, uint64_t nonce, unsigned count);
void search(uint8_t const* header, uint64_t target, search_hook& hook);

7
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/CMakeLists.txt generated vendored
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@ -12,6 +12,7 @@ endif()
set(FILES util.c
util.h
io.c
internal.c
ethash.h
endian.h
@ -19,6 +20,12 @@ set(FILES util.c
fnv.h
data_sizes.h)
if (MSVC)
list(APPEND FILES io_win32.c)
else()
list(APPEND FILES io_posix.c)
endif()
if (NOT CRYPTOPP_FOUND)
find_package(CryptoPP 5.6.2)
endif()

4
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/data_sizes.h generated vendored
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@ -48,7 +48,7 @@ extern "C" {
// Sow[i*HashBytes]; j++]]]][[2]][[1]]
static const size_t dag_sizes[2048] = {
static const uint64_t dag_sizes[2048] = {
1073739904U, 1082130304U, 1090514816U, 1098906752U, 1107293056U,
1115684224U, 1124070016U, 1132461952U, 1140849536U, 1149232768U,
1157627776U, 1166013824U, 1174404736U, 1182786944U, 1191180416U,
@ -477,7 +477,7 @@ static const size_t dag_sizes[2048] = {
// While[! PrimeQ[i], i--];
// Sow[i*HashBytes]; j++]]]][[2]][[1]]
const size_t cache_sizes[2048] = {
const uint64_t cache_sizes[2048] = {
16776896U, 16907456U, 17039296U, 17170112U, 17301056U, 17432512U, 17563072U,
17693888U, 17824192U, 17955904U, 18087488U, 18218176U, 18349504U, 18481088U,
18611392U, 18742336U, 18874304U, 19004224U, 19135936U, 19267264U, 19398208U,

33
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/ethash.h generated vendored
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@ -43,8 +43,8 @@ extern "C" {
#endif
typedef struct ethash_params {
size_t full_size; // Size of full data set (in bytes, multiple of mix size (128)).
size_t cache_size; // Size of compute cache (in bytes, multiple of node size (64)).
uint64_t full_size; // Size of full data set (in bytes, multiple of mix size (128)).
uint64_t cache_size; // Size of compute cache (in bytes, multiple of node size (64)).
} ethash_params;
typedef struct ethash_return_value {
@ -52,8 +52,8 @@ typedef struct ethash_return_value {
uint8_t mix_hash[32];
} ethash_return_value;
size_t ethash_get_datasize(const uint32_t block_number);
size_t ethash_get_cachesize(const uint32_t block_number);
uint64_t ethash_get_datasize(const uint32_t block_number);
uint64_t ethash_get_cachesize(const uint32_t block_number);
// initialize the parameters
static inline void ethash_params_init(ethash_params *params, const uint32_t block_number) {
@ -93,23 +93,30 @@ static inline void ethash_compute_full(ethash_return_value *ret, void const *ful
ethash_full(ret, full, params, header_hash, nonce);
}
// Returns if hash is less than or equal to difficulty
static inline int ethash_check_difficulty(
const uint8_t hash[32],
const uint8_t difficulty[32]) {
// Difficulty is big endian
/// @brief Compare two s256-bit big-endian values.
/// @returns 1 if @a a is less than or equal to @a b, 0 otherwise.
/// Both parameters are 256-bit big-endian values.
static inline int ethash_leq_be256(const uint8_t a[32], const uint8_t b[32]) {
// Boundary is big endian
for (int i = 0; i < 32; i++) {
if (hash[i] == difficulty[i]) continue;
return hash[i] < difficulty[i];
if (a[i] == b[i])
continue;
return a[i] < b[i];
}
return 1;
}
int ethash_quick_check_difficulty(
/// Perofrms a cursory check on the validity of the nonce.
/// @returns 1 if the nonce may possibly be valid for the given header_hash & boundary.
/// @p boundary equivalent to 2 ^ 256 / block_difficulty, represented as a 256-bit big-endian.
int ethash_preliminary_check_boundary(
const uint8_t header_hash[32],
const uint64_t nonce,
const uint8_t mix_hash[32],
const uint8_t difficulty[32]);
const uint8_t boundary[32]);
#define ethash_quick_check_difficulty ethash_preliminary_check_boundary
#define ethash_check_difficulty ethash_leq_be256
#ifdef __cplusplus
}

8
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c generated vendored
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@ -37,12 +37,12 @@
#include "sha3.h"
#endif // WITH_CRYPTOPP
size_t ethash_get_datasize(const uint32_t block_number) {
uint64_t ethash_get_datasize(const uint32_t block_number) {
assert(block_number / EPOCH_LENGTH < 2048);
return dag_sizes[block_number / EPOCH_LENGTH];
}
size_t ethash_get_cachesize(const uint32_t block_number) {
uint64_t ethash_get_cachesize(const uint32_t block_number) {
assert(block_number / EPOCH_LENGTH < 2048);
return cache_sizes[block_number / EPOCH_LENGTH];
}
@ -280,7 +280,7 @@ void ethash_get_seedhash(uint8_t seedhash[32], const uint32_t block_number) {
SHA3_256(seedhash, seedhash, 32);
}
int ethash_quick_check_difficulty(
int ethash_preliminary_check_boundary(
const uint8_t header_hash[32],
const uint64_t nonce,
const uint8_t mix_hash[32],
@ -288,7 +288,7 @@ int ethash_quick_check_difficulty(
uint8_t return_hash[32];
ethash_quick_hash(return_hash, header_hash, nonce, mix_hash);
return ethash_check_difficulty(return_hash, difficulty);
return ethash_leq_be256(return_hash, difficulty);
}
void ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) {

89
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.c generated vendored Normal file
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@ -0,0 +1,89 @@
/*
This file is part of ethash.
ethash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ethash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ethash. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file io.c
* @author Lefteris Karapetsas <lefteris@ethdev.com>
* @date 2015
*/
#include "io.h"
#include <string.h>
#include <stdio.h>
// silly macro to save some typing
#define PASS_ARR(c_) (c_), sizeof(c_)
static bool ethash_io_write_file(char const *dirname,
char const* filename,
size_t filename_length,
void const* data,
size_t data_size)
{
bool ret = false;
char *fullname = ethash_io_create_filename(dirname, filename, filename_length);
if (!fullname) {
return false;
}
FILE *f = fopen(fullname, "wb");
if (!f) {
goto free_name;
}
if (data_size != fwrite(data, 1, data_size, f)) {
goto close;
}
ret = true;
close:
fclose(f);
free_name:
free(fullname);
return ret;
}
bool ethash_io_write(char const *dirname,
ethash_params const* params,
ethash_blockhash_t seedhash,
void const* cache,
uint8_t **data,
uint64_t *data_size)
{
char info_buffer[DAG_MEMO_BYTESIZE];
// allocate the bytes
uint8_t *temp_data_ptr = malloc((size_t)params->full_size);
if (!temp_data_ptr) {
goto end;
}
ethash_compute_full_data(temp_data_ptr, params, cache);
if (!ethash_io_write_file(dirname, PASS_ARR(DAG_FILE_NAME), temp_data_ptr, (size_t)params->full_size)) {
goto fail_free;
}
ethash_io_serialize_info(REVISION, seedhash, info_buffer);
if (!ethash_io_write_file(dirname, PASS_ARR(DAG_MEMO_NAME), info_buffer, DAG_MEMO_BYTESIZE)) {
goto fail_free;
}
*data = temp_data_ptr;
*data_size = params->full_size;
return true;
fail_free:
free(temp_data_ptr);
end:
return false;
}
#undef PASS_ARR

116
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io.h generated vendored Normal file
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@ -0,0 +1,116 @@
/*
This file is part of ethash.
ethash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ethash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ethash. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file io.h
* @author Lefteris Karapetsas <lefteris@ethdev.com>
* @date 2015
*/
#pragma once
#include <stdlib.h>
#include <stdint.h>
#include <stdbool.h>
#include "ethash.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct ethash_blockhash { uint8_t b[32]; } ethash_blockhash_t;
static const char DAG_FILE_NAME[] = "full";
static const char DAG_MEMO_NAME[] = "full.info";
// MSVC thinks that "static const unsigned int" is not a compile time variable. Sorry for the #define :(
#define DAG_MEMO_BYTESIZE 36
/// Possible return values of @see ethash_io_prepare
enum ethash_io_rc {
ETHASH_IO_FAIL = 0, ///< There has been an IO failure
ETHASH_IO_MEMO_MISMATCH, ///< Memo file either did not exist or there was content mismatch
ETHASH_IO_MEMO_MATCH, ///< Memo file existed and contents matched. No need to do anything
};
/**
* Prepares io for ethash
*
* Create the DAG directory if it does not exist, and check if the memo file matches.
* If it does not match then it's deleted to pave the way for @ref ethash_io_write()
*
* @param dirname A null terminated c-string of the path of the ethash
* data directory. If it does not exist it's created.
* @param seedhash The seedhash of the current block number
* @return For possible return values @see enum ethash_io_rc
*/
enum ethash_io_rc ethash_io_prepare(char const *dirname, ethash_blockhash_t seedhash);
/**
* Fully computes data and writes it to the file on disk.
*
* This function should be called after @see ethash_io_prepare() and only if
* its return value is @c ETHASH_IO_MEMO_MISMATCH. Will write both the full data
* and the memo file.
*
* @param[in] dirname A null terminated c-string of the path of the ethash
* data directory. Has to exist.
* @param[in] params An ethash_params object containing the full size
* and the cache size
* @param[in] seedhash The seedhash of the current block number
* @param[in] cache The cache data. Would have usually been calulated by
* @see ethash_prep_light().
* @param[out] data Pass a pointer to uint8_t by reference here. If the
* function is succesfull then this point to the allocated
* data calculated by @see ethash_prep_full(). Memory
* ownership is transfered to the callee. Remember that
* you eventually need to free this with a call to free().
* @param[out] data_size Pass a uint64_t by value. If the function is succesfull
* then this will contain the number of bytes allocated
* for @a data.
* @return True for success and false in case of failure.
*/
bool ethash_io_write(char const *dirname,
ethash_params const* params,
ethash_blockhash_t seedhash,
void const* cache,
uint8_t **data,
uint64_t *data_size);
static inline void ethash_io_serialize_info(uint32_t revision,
ethash_blockhash_t seed_hash,
char *output)
{
// if .info is only consumed locally we don't really care about endianess
memcpy(output, &revision, 4);
memcpy(output + 4, &seed_hash, 32);
}
static inline char *ethash_io_create_filename(char const *dirname,
char const* filename,
size_t filename_length)
{
// in C the cast is not needed, but a C++ compiler will complain for invalid conversion
char *name = (char*)malloc(strlen(dirname) + filename_length);
if (!name) {
return NULL;
}
name[0] = '\0';
strcat(name, dirname);
strcat(name, filename);
return name;
}
#ifdef __cplusplus
}
#endif

76
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_posix.c generated vendored Normal file
View File

@ -0,0 +1,76 @@
/*
This file is part of ethash.
ethash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ethash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ethash. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file io_posix.c
* @author Lefteris Karapetsas <lefteris@ethdev.com>
* @date 2015
*/
#include "io.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <libgen.h>
#include <stdio.h>
#include <unistd.h>
enum ethash_io_rc ethash_io_prepare(char const *dirname, ethash_blockhash_t seedhash)
{
char read_buffer[DAG_MEMO_BYTESIZE];
char expect_buffer[DAG_MEMO_BYTESIZE];
enum ethash_io_rc ret = ETHASH_IO_FAIL;
// assert directory exists, full owner permissions and read/search for others
int rc = mkdir(dirname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
if (rc == -1 && errno != EEXIST) {
goto end;
}
char *memofile = ethash_io_create_filename(dirname, DAG_MEMO_NAME, sizeof(DAG_MEMO_NAME));
if (!memofile) {
goto end;
}
// try to open memo file
FILE *f = fopen(memofile, "rb");
if (!f) {
// file does not exist, so no checking happens. All is fine.
ret = ETHASH_IO_MEMO_MISMATCH;
goto free_memo;
}
if (fread(read_buffer, 1, DAG_MEMO_BYTESIZE, f) != DAG_MEMO_BYTESIZE) {
goto close;
}
ethash_io_serialize_info(REVISION, seedhash, expect_buffer);
if (memcmp(read_buffer, expect_buffer, DAG_MEMO_BYTESIZE) != 0) {
// we have different memo contents so delete the memo file
if (unlink(memofile) != 0) {
goto close;
}
ret = ETHASH_IO_MEMO_MISMATCH;
}
ret = ETHASH_IO_MEMO_MATCH;
close:
fclose(f);
free_memo:
free(memofile);
end:
return ret;
}

73
Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/io_win32.c generated vendored Normal file
View File

@ -0,0 +1,73 @@
/*
This file is part of ethash.
ethash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
ethash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ethash. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file io_win32.c
* @author Lefteris Karapetsas <lefteris@ethdev.com>
* @date 2015
*/
#include "io.h"
#include <direct.h>
#include <errno.h>
#include <stdio.h>
enum ethash_io_rc ethash_io_prepare(char const *dirname, ethash_blockhash_t seedhash)
{
char read_buffer[DAG_MEMO_BYTESIZE];
char expect_buffer[DAG_MEMO_BYTESIZE];
enum ethash_io_rc ret = ETHASH_IO_FAIL;
// assert directory exists
int rc = _mkdir(dirname);
if (rc == -1 && errno != EEXIST) {
goto end;
}
char *memofile = ethash_io_create_filename(dirname, DAG_MEMO_NAME, sizeof(DAG_MEMO_NAME));
if (!memofile) {
goto end;
}
// try to open memo file
FILE *f = fopen(memofile, "rb");
if (!f) {
// file does not exist, so no checking happens. All is fine.
ret = ETHASH_IO_MEMO_MISMATCH;
goto free_memo;
}
if (fread(read_buffer, 1, DAG_MEMO_BYTESIZE, f) != DAG_MEMO_BYTESIZE) {
goto close;
}
ethash_io_serialize_info(REVISION, seedhash, expect_buffer);
if (memcmp(read_buffer, expect_buffer, DAG_MEMO_BYTESIZE) != 0) {
// we have different memo contents so delete the memo file
if (_unlink(memofile) != 0) {
goto close;
}
ret = ETHASH_IO_MEMO_MISMATCH;
}
ret = ETHASH_IO_MEMO_MATCH;
close:
fclose(f);
free_memo:
free(memofile);
end:
return ret;
}

57
Godeps/_workspace/src/github.com/ethereum/ethash/src/python/core.c generated vendored
View File

@ -5,6 +5,14 @@
#include <time.h>
#include "../libethash/ethash.h"
#if PY_MAJOR_VERSION >= 3
#define PY_STRING_FORMAT "y#"
#define PY_CONST_STRING_FORMAT "y"
#else
#define PY_STRING_FORMAT "s#"
#define PY_CONST_STRING_FORMAT "s"
#endif
#define MIX_WORDS (MIX_BYTES/4)
static PyObject *
@ -46,7 +54,7 @@ mkcache_bytes(PyObject *self, PyObject *args) {
unsigned long cache_size;
int seed_len;
if (!PyArg_ParseTuple(args, "ks#", &cache_size, &seed, &seed_len))
if (!PyArg_ParseTuple(args, "k" PY_STRING_FORMAT, &cache_size, &seed, &seed_len))
return 0;
if (seed_len != 32) {
@ -62,7 +70,7 @@ mkcache_bytes(PyObject *self, PyObject *args) {
ethash_cache cache;
cache.mem = malloc(cache_size);
ethash_mkcache(&cache, &params, (uint8_t *) seed);
PyObject * val = Py_BuildValue("s#", cache.mem, cache_size);
PyObject * val = Py_BuildValue(PY_STRING_FORMAT, cache.mem, cache_size);
free(cache.mem);
return val;
}
@ -74,7 +82,7 @@ calc_dataset_bytes(PyObject *self, PyObject *args) {
unsigned long full_size;
int cache_size;
if (!PyArg_ParseTuple(args, "ks#", &full_size, &cache_bytes, &cache_size))
if (!PyArg_ParseTuple(args, "k" PY_STRING_FORMAT, &full_size, &cache_bytes, &cache_size))
return 0;
if (full_size % MIX_WORDS != 0) {
@ -98,7 +106,7 @@ calc_dataset_bytes(PyObject *self, PyObject *args) {
cache.mem = (void *) cache_bytes;
void *mem = malloc(params.full_size);
ethash_compute_full_data(mem, &params, &cache);
PyObject * val = Py_BuildValue("s#", (char *) mem, full_size);
PyObject * val = Py_BuildValue(PY_STRING_FORMAT, (char *) mem, full_size);
free(mem);
return val;
}
@ -111,7 +119,7 @@ hashimoto_light(PyObject *self, PyObject *args) {
unsigned long long nonce;
int cache_size, header_size;
if (!PyArg_ParseTuple(args, "ks#s#K", &full_size, &cache_bytes, &cache_size, &header, &header_size, &nonce))
if (!PyArg_ParseTuple(args, "k" PY_STRING_FORMAT PY_STRING_FORMAT "K", &full_size, &cache_bytes, &cache_size, &header, &header_size, &nonce))
return 0;
if (full_size % MIX_WORDS != 0) {
@ -143,7 +151,7 @@ hashimoto_light(PyObject *self, PyObject *args) {
ethash_cache cache;
cache.mem = (void *) cache_bytes;
ethash_light(&out, &cache, &params, (uint8_t *) header, nonce);
return Py_BuildValue("{s:s#,s:s#}",
return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "," PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "}",
"mix digest", out.mix_hash, 32,
"result", out.result, 32);
}
@ -155,7 +163,7 @@ hashimoto_full(PyObject *self, PyObject *args) {
unsigned long long nonce;
int full_size, header_size;
if (!PyArg_ParseTuple(args, "s#s#K", &full_bytes, &full_size, &header, &header_size, &nonce))
if (!PyArg_ParseTuple(args, PY_STRING_FORMAT PY_STRING_FORMAT "K", &full_bytes, &full_size, &header, &header_size, &nonce))
return 0;
if (full_size % MIX_WORDS != 0) {
@ -177,7 +185,7 @@ hashimoto_full(PyObject *self, PyObject *args) {
ethash_params params;
params.full_size = (size_t) full_size;
ethash_full(&out, (void *) full_bytes, &params, (uint8_t *) header, nonce);
return Py_BuildValue("{s:s#, s:s#}",
return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT "}",
"mix digest", out.mix_hash, 32,
"result", out.result, 32);
}
@ -190,7 +198,7 @@ mine(PyObject *self, PyObject *args) {
uint64_t nonce = ((uint64_t) rand()) << 32 | rand();
int full_size, header_size, difficulty_size;
if (!PyArg_ParseTuple(args, "s#s#s#", &full_bytes, &full_size, &header, &header_size, &difficulty, &difficulty_size))
if (!PyArg_ParseTuple(args, PY_STRING_FORMAT PY_STRING_FORMAT PY_STRING_FORMAT, &full_bytes, &full_size, &header, &header_size, &difficulty, &difficulty_size))
return 0;
if (full_size % MIX_WORDS != 0) {
@ -224,7 +232,7 @@ mine(PyObject *self, PyObject *args) {
// TODO: disagrees with the spec https://github.com/ethereum/wiki/wiki/Ethash#mining
} while (!ethash_check_difficulty(out.result, (const uint8_t *) difficulty));
return Py_BuildValue("{s:s#, s:s#, s:K}",
return Py_BuildValue("{" PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":" PY_STRING_FORMAT ", " PY_CONST_STRING_FORMAT ":K}",
"mix digest", out.mix_hash, 32,
"result", out.result, 32,
"nonce", nonce);
@ -245,7 +253,7 @@ get_seedhash(PyObject *self, PyObject *args) {
}
uint8_t seedhash[32];
ethash_get_seedhash(seedhash, block_number);
return Py_BuildValue("s#", (char *) seedhash, 32);
return Py_BuildValue(PY_STRING_FORMAT, (char *) seedhash, 32);
}
static PyMethodDef PyethashMethods[] =
@ -287,6 +295,32 @@ static PyMethodDef PyethashMethods[] =
{NULL, NULL, 0, NULL}
};
#if PY_MAJOR_VERSION >= 3
static struct PyModuleDef PyethashModule = {
PyModuleDef_HEAD_INIT,
"pyethash",
"...",
-1,
PyethashMethods
};
PyMODINIT_FUNC PyInit_pyethash(void) {
PyObject *module = PyModule_Create(&PyethashModule);
// Following Spec: https://github.com/ethereum/wiki/wiki/Ethash#definitions
PyModule_AddIntConstant(module, "REVISION", (long) REVISION);
PyModule_AddIntConstant(module, "DATASET_BYTES_INIT", (long) DATASET_BYTES_INIT);
PyModule_AddIntConstant(module, "DATASET_BYTES_GROWTH", (long) DATASET_BYTES_GROWTH);
PyModule_AddIntConstant(module, "CACHE_BYTES_INIT", (long) CACHE_BYTES_INIT);
PyModule_AddIntConstant(module, "CACHE_BYTES_GROWTH", (long) CACHE_BYTES_GROWTH);
PyModule_AddIntConstant(module, "EPOCH_LENGTH", (long) EPOCH_LENGTH);
PyModule_AddIntConstant(module, "MIX_BYTES", (long) MIX_BYTES);
PyModule_AddIntConstant(module, "HASH_BYTES", (long) HASH_BYTES);
PyModule_AddIntConstant(module, "DATASET_PARENTS", (long) DATASET_PARENTS);
PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) CACHE_ROUNDS);
PyModule_AddIntConstant(module, "ACCESSES", (long) ACCESSES);
return module;
}
#else
PyMODINIT_FUNC
initpyethash(void) {
PyObject *module = Py_InitModule("pyethash", PyethashMethods);
@ -303,3 +337,4 @@ initpyethash(void) {
PyModule_AddIntConstant(module, "CACHE_ROUNDS", (long) CACHE_ROUNDS);
PyModule_AddIntConstant(module, "ACCESSES", (long) ACCESSES);
}
#endif

39
Godeps/_workspace/src/github.com/ethereum/ethash/test/c/CMakeLists.txt generated vendored
View File

@ -1,5 +1,30 @@
if (MSVC)
if (NOT BOOST_ROOT)
set (BOOST_ROOT "$ENV{BOOST_ROOT}")
endif()
set (CMAKE_PREFIX_PATH BOOST_ROOT)
endif()
IF( NOT Boost_FOUND )
find_package(Boost COMPONENTS unit_test_framework)
# use multithreaded boost libraries, with -mt suffix
set(Boost_USE_MULTITHREADED ON)
if (MSVC)
# TODO handle other msvc versions or it will fail find them
set(Boost_COMPILER -vc120)
# use static boost libraries *.lib
set(Boost_USE_STATIC_LIBS ON)
elseif (APPLE)
# use static boost libraries *.a
set(Boost_USE_STATIC_LIBS ON)
elseif (UNIX)
# use dynamic boost libraries .dll
set(Boost_USE_STATIC_LIBS OFF)
endif()
find_package(Boost 1.48.0 COMPONENTS unit_test_framework system filesystem)
ENDIF()
IF( Boost_FOUND )
@ -8,8 +33,9 @@ IF( Boost_FOUND )
link_directories ( ${Boost_LIBRARY_DIRS} )
file(GLOB HEADERS "*.h")
if (NOT MSVC)
ADD_DEFINITIONS(-DBOOST_TEST_DYN_LINK)
endif()
if (NOT CRYPTOPP_FOUND)
find_package (CryptoPP)
endif()
@ -18,8 +44,15 @@ IF( Boost_FOUND )
add_definitions(-DWITH_CRYPTOPP)
endif()
if (NOT MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 ")
endif()
add_executable (Test test.cpp ${HEADERS})
target_link_libraries (Test ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY} ${ETHHASH_LIBS})
target_link_libraries(Test ${ETHHASH_LIBS})
target_link_libraries(Test ${Boost_FILESYSTEM_LIBRARIES})
target_link_libraries(Test ${Boost_SYSTEM_LIBRARIES})
target_link_libraries (Test ${Boost_UNIT_TEST_FRAMEWORK_LIBRARY})
if (CRYPTOPP_FOUND)
TARGET_LINK_LIBRARIES(Test ${CRYPTOPP_LIBRARIES})

164
Godeps/_workspace/src/github.com/ethereum/ethash/test/c/test.cpp generated vendored
View File

@ -2,6 +2,7 @@
#include <libethash/fnv.h>
#include <libethash/ethash.h>
#include <libethash/internal.h>
#include <libethash/io.h>
#ifdef WITH_CRYPTOPP
@ -14,13 +15,23 @@
#define BOOST_TEST_MODULE Daggerhashimoto
#define BOOST_TEST_MAIN
#include <boost/test/unit_test.hpp>
#include <iostream>
#include <fstream>
#include <vector>
#include <boost/filesystem.hpp>
#include <boost/test/unit_test.hpp>
std::string bytesToHexString(const uint8_t *str, const size_t s) {
using namespace std;
namespace fs = boost::filesystem;
// Just an alloca "wrapper" to silence uint64_t to size_t conversion warnings in windows
// consider replacing alloca calls with something better though!
#define our_alloca(param__) alloca((size_t)(param__))
std::string bytesToHexString(const uint8_t *str, const uint64_t s) {
std::ostringstream ret;
for (int i = 0; i < s; ++i)
for (size_t i = 0; i < s; ++i)
ret << std::hex << std::setfill('0') << std::setw(2) << std::nouppercase << (int) str[i];
return ret.str();
@ -108,9 +119,9 @@ BOOST_AUTO_TEST_CASE(light_and_full_client_checks) {
params.cache_size = 1024;
params.full_size = 1024 * 32;
ethash_cache cache;
cache.mem = alloca(params.cache_size);
cache.mem = our_alloca(params.cache_size);
ethash_mkcache(&cache, &params, seed);
node *full_mem = (node *) alloca(params.full_size);
node *full_mem = (node *) our_alloca(params.full_size);
ethash_compute_full_data(full_mem, &params, &cache);
{
@ -226,3 +237,146 @@ BOOST_AUTO_TEST_CASE(ethash_check_difficulty_check) {
!ethash_check_difficulty(hash, target),
"\nexpected \"" << hash << "\" to have more difficulty than \"" << target << "\"\n");
}
BOOST_AUTO_TEST_CASE(test_ethash_dir_creation) {
ethash_blockhash_t seedhash;
memset(&seedhash, 0, 32);
BOOST_REQUIRE_EQUAL(
ETHASH_IO_MEMO_MISMATCH,
ethash_io_prepare("./test_ethash_directory/", seedhash)
);
// let's make sure that the directory was created
BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/")));
// cleanup
fs::remove_all("./test_ethash_directory/");
}
BOOST_AUTO_TEST_CASE(test_ethash_io_write_files_are_created) {
ethash_blockhash_t seedhash;
static const int blockn = 0;
ethash_get_seedhash((uint8_t*)&seedhash, blockn);
BOOST_REQUIRE_EQUAL(
ETHASH_IO_MEMO_MISMATCH,
ethash_io_prepare("./test_ethash_directory/", seedhash)
);
// let's make sure that the directory was created
BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/")));
ethash_cache cache;
ethash_params params;
uint8_t *data;
uint64_t size;
ethash_params_init(&params, blockn);
params.cache_size = 1024;
params.full_size = 1024 * 32;
cache.mem = our_alloca(params.cache_size);
ethash_mkcache(&cache, &params, (uint8_t*)&seedhash);
BOOST_REQUIRE(
ethash_io_write("./test_ethash_directory/", &params, seedhash, &cache, &data, &size)
);
BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full")));
BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full.info")));
// cleanup
fs::remove_all("./test_ethash_directory/");
free(data);
}
BOOST_AUTO_TEST_CASE(test_ethash_io_memo_file_match) {
ethash_blockhash_t seedhash;
static const int blockn = 0;
ethash_get_seedhash((uint8_t*)&seedhash, blockn);
BOOST_REQUIRE_EQUAL(
ETHASH_IO_MEMO_MISMATCH,
ethash_io_prepare("./test_ethash_directory/", seedhash)
);
// let's make sure that the directory was created
BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/")));
ethash_cache cache;
ethash_params params;
uint8_t *data;
uint64_t size;
ethash_params_init(&params, blockn);
params.cache_size = 1024;
params.full_size = 1024 * 32;
cache.mem = our_alloca(params.cache_size);
ethash_mkcache(&cache, &params, (uint8_t*)&seedhash);
BOOST_REQUIRE(
ethash_io_write("./test_ethash_directory/", &params, seedhash, &cache, &data, &size)
);
BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full")));
BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full.info")));
BOOST_REQUIRE_EQUAL(
ETHASH_IO_MEMO_MATCH,
ethash_io_prepare("./test_ethash_directory/", seedhash)
);
// cleanup
fs::remove_all("./test_ethash_directory/");
free(data);
}
// could have used dev::contentsNew but don't wanna try to import
// libdevcore just for one function
static std::vector<char> readFileIntoVector(char const* filename)
{
ifstream ifs(filename, ios::binary|ios::ate);
ifstream::pos_type pos = ifs.tellg();
std::vector<char> result((unsigned int)pos);
ifs.seekg(0, ios::beg);
ifs.read(&result[0], pos);
return result;
}
BOOST_AUTO_TEST_CASE(test_ethash_io_memo_file_contents) {
ethash_blockhash_t seedhash;
static const int blockn = 0;
ethash_get_seedhash((uint8_t*)&seedhash, blockn);
BOOST_REQUIRE_EQUAL(
ETHASH_IO_MEMO_MISMATCH,
ethash_io_prepare("./test_ethash_directory/", seedhash)
);
// let's make sure that the directory was created
BOOST_REQUIRE(fs::is_directory(fs::path("./test_ethash_directory/")));
ethash_cache cache;
ethash_params params;
uint8_t *data;
uint64_t size;
ethash_params_init(&params, blockn);
params.cache_size = 1024;
params.full_size = 1024 * 32;
cache.mem = our_alloca(params.cache_size);
ethash_mkcache(&cache, &params, (uint8_t*)&seedhash);
BOOST_REQUIRE(
ethash_io_write("./test_ethash_directory/", &params, seedhash, &cache, &data, &size)
);
BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full")));
BOOST_REQUIRE(fs::exists(fs::path("./test_ethash_directory/full.info")));
char expect_buffer[DAG_MEMO_BYTESIZE];
ethash_io_serialize_info(REVISION, seedhash, expect_buffer);
auto vec = readFileIntoVector("./test_ethash_directory/full.info");
BOOST_REQUIRE_EQUAL(vec.size(), DAG_MEMO_BYTESIZE);
BOOST_REQUIRE(memcmp(expect_buffer, &vec[0], DAG_MEMO_BYTESIZE) == 0);
// cleanup
fs::remove_all("./test_ethash_directory/");
free(data);
}

20
Godeps/_workspace/src/github.com/ethereum/ethash/test/go/test.sh generated vendored
View File

@ -1,20 +0,0 @@
#!/bin/bash
# Strict mode
set -e
SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do
DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
SOURCE="$(readlink "$SOURCE")"
[[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE"
done
TEST_DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
export GOPATH=${HOME}/.go
export PATH=$PATH:$GOPATH/bin
echo "# getting go dependencies (can take some time)..."
cd ${TEST_DIR}/../.. && go get
cd ${GOPATH}/src/github.com/ethereum/go-ethereum
git checkout poc-9
cd ${TEST_DIR} && go test

2
eth/backend.go
View File

@ -296,7 +296,7 @@ func (s *Ethereum) PeersInfo() (peersinfo []*PeerInfo) {
func (s *Ethereum) ResetWithGenesisBlock(gb *types.Block) {
s.chainManager.ResetWithGenesisBlock(gb)
s.pow.UpdateCache(true)
s.pow.UpdateCache(0, true)
}
func (s *Ethereum) StartMining() error {