diff options
Diffstat (limited to 'src/random.cpp')
| -rw-r--r-- | src/random.cpp | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/src/random.cpp b/src/random.cpp index 09777237c2..fd1dfe506f 100644 --- a/src/random.cpp +++ b/src/random.cpp @@ -179,7 +179,7 @@ static uint64_t GetRdSeed() noexcept /* Access to other hardware random number generators could be added here later, * assuming it is sufficiently fast (in the order of a few hundred CPU cycles). * Slower sources should probably be invoked separately, and/or only from - * RandAddSeedSleep (which is called during idle background operation). + * RandAddPeriodic (which is called once a minute). */ static void InitHardwareRand() {} static void ReportHardwareRand() {} @@ -416,17 +416,7 @@ RNGState& GetRNGState() noexcept /* A note on the use of noexcept in the seeding functions below: * - * None of the RNG code should ever throw any exception, with the sole exception - * of MilliSleep in SeedSleep, which can (and does) support interruptions which - * cause a boost::thread_interrupted to be thrown. - * - * This means that SeedSleep, and all functions that invoke it are throwing. - * However, we know that GetRandBytes() and GetStrongRandBytes() never trigger - * this sleeping logic, so they are noexcept. The same is true for all the - * GetRand*() functions that use GetRandBytes() indirectly. - * - * TODO: After moving away from interruptible boost-based thread management, - * everything can become noexcept here. + * None of the RNG code should ever throw any exception. */ static void SeedTimestamp(CSHA512& hasher) noexcept @@ -498,7 +488,7 @@ static void SeedStrengthen(CSHA512& hasher, RNGState& rng, int microseconds) noe Strengthen(strengthen_seed, microseconds, hasher); } -static void SeedPeriodic(CSHA512& hasher, RNGState& rng) +static void SeedPeriodic(CSHA512& hasher, RNGState& rng) noexcept { // Everything that the 'fast' seeder includes SeedFast(hasher); @@ -575,7 +565,7 @@ static void ProcRand(unsigned char* out, int num, RNGLevel level) void GetRandBytes(unsigned char* buf, int num) noexcept { ProcRand(buf, num, RNGLevel::FAST); } void GetStrongRandBytes(unsigned char* buf, int num) noexcept { ProcRand(buf, num, RNGLevel::SLOW); } -void RandAddPeriodic() { ProcRand(nullptr, 0, RNGLevel::PERIODIC); } +void RandAddPeriodic() noexcept { ProcRand(nullptr, 0, RNGLevel::PERIODIC); } void RandAddEvent(const uint32_t event_info) { LOCK(events_mutex); |