diff options
Diffstat (limited to 'src/random.cpp')
| -rw-r--r-- | src/random.cpp | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src/random.cpp b/src/random.cpp index b004dcac3..503d5b363 100644 --- a/src/random.cpp +++ b/src/random.cpp @@ -1,5 +1,5 @@ // Copyright (c) 2009-2010 Satoshi Nakamoto -// Copyright (c) 2009-2017 The Bitcoin Core developers +// Copyright (c) 2009-2018 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. @@ -11,14 +11,16 @@ #include <compat.h> // for Windows API #include <wincrypt.h> #endif -#include <util.h> // for LogPrint() -#include <utilstrencodings.h> // for GetTime() +#include <logging.h> // for LogPrint() +#include <sync.h> // for WAIT_LOCK +#include <utiltime.h> // for GetTime() #include <stdlib.h> #include <chrono> #include <thread> #ifndef WIN32 +#include <fcntl.h> #include <sys/time.h> #endif @@ -33,6 +35,7 @@ #include <sys/random.h> #endif #ifdef HAVE_SYSCTL_ARND +#include <utilstrencodings.h> // for ARRAYLEN #include <sys/sysctl.h> #endif @@ -178,7 +181,7 @@ static void RandAddSeedPerfmon() /** Fallback: get 32 bytes of system entropy from /dev/urandom. The most * compatible way to get cryptographic randomness on UNIX-ish platforms. */ -void GetDevURandom(unsigned char *ent32) +static void GetDevURandom(unsigned char *ent32) { int f = open("/dev/urandom", O_RDONLY); if (f == -1) { @@ -293,7 +296,7 @@ void RandAddSeedSleep() } -static std::mutex cs_rng_state; +static Mutex cs_rng_state; static unsigned char rng_state[32] = {0}; static uint64_t rng_counter = 0; @@ -303,7 +306,7 @@ static void AddDataToRng(void* data, size_t len) { hasher.Write((const unsigned char*)data, len); unsigned char buf[64]; { - std::unique_lock<std::mutex> lock(cs_rng_state); + WAIT_LOCK(cs_rng_state, lock); hasher.Write(rng_state, sizeof(rng_state)); hasher.Write((const unsigned char*)&rng_counter, sizeof(rng_counter)); ++rng_counter; @@ -335,7 +338,7 @@ void GetStrongRandBytes(unsigned char* out, int num) // Combine with and update state { - std::unique_lock<std::mutex> lock(cs_rng_state); + WAIT_LOCK(cs_rng_state, lock); hasher.Write(rng_state, sizeof(rng_state)); hasher.Write((const unsigned char*)&rng_counter, sizeof(rng_counter)); ++rng_counter; |