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Author: Police Terror
Date:  
To: libbitcoin
Subject: Re: [Libbitcoin] Master libbitcoin-server on testnet
If I setup version2 testnet server, is the protocol API compatible with
version3? If not, then what is different? I assume it's mostly minor
changes.

Eric Voskuil:
> It looks like this could be a distinct issue from what has been logged.
> It appears that the RNG is not thread safe on some platforms, which
> means a bit of rework in a few areas. I've added this:
>
> https://github.com/libbitcoin/libbitcoin-network/issues/72
>
> e
>
> On 10/21/2016 07:39 AM, Police Terror wrote:
>> However this code works fine:
>>
>> #include <random>
>>
>> uint64_t pseudo_random()
>> {
>>     std::random_device device;
>>     std::uniform_int_distribution<uint64_t> distribution;
>>     return distribution(device);
>> }

>>
>> int main()
>> {
>>     pseudo_random();
>>     return 0;
>> }

>>
>> Police Terror:
>>> I'm using the current master branch to sync with testnet, but I'm
>>> getting this error:
>>>
>>> ...
>>> 14:15:56.657549 WARNING [server] Failed to connect secure notification
>>> worker: operation failed
>>> 14:15:56.756083 WARNING [server] Failed to connect secure notification
>>> worker: operation failed
>>> terminate called after throwing an instance of 'std::runtime_error'
>>> what(): random_device::random_device(const std::string&)
>>> 14:15:57.415901 INFO [server] Stop signal detected (code: 6).
>>> Aborted (core dumped)
>>>
>>> Here's what debug.log is showing:
>>>
>>> 14:15:57.415478 DEBUG [network] Failure connecting outbound: operation
>>> failed
>>> 14:15:57.415501 DEBUG [network] Failure connecting outbound: operation
>>> failed
>>> 14:15:57.415570 DEBUG [node] Redundant block
>>> [0000000057bd296621bc2f314e3594c412a0cd9e94f1083554c3184160612450] from
>>> [177.189.250.198:18333]
>>> 14:15:57.415605 DEBUG [network] Connecting to [121.40.72.188:18333]
>>> 14:15:57.415703 DEBUG [network] Valid block payload from
>>> [177.189.250.198:18333] (207 bytes)
>>> 14:15:57.415757 DEBUG [network] Connecting to [212.93.226.185:18333]
>>> 14:15:57.415816 DEBUG [network] Connecting to [2.55.186.124:18333]
>>> 14:15:57.415901 INFO [server] Stop signal detected (code: 6).
>>> 14:15:57.415937 DEBUG [node] Redundant block
>>> [000000008a675b534ea86b312f29c9fdcce7b7b07ca1879c144b8e20215ac201] from
>>> [177.189.250.198:18333]
>>> 14:15:57.416008 DEBUG [network] Valid block payload from
>>> [177.189.250.198:18333] (207 bytes)
>>> g
>>>
>>> I've attached the .cfg file I'm using.
>>>
>>> Looking at libbitcoin/src/utility/random.cpp, I see that
>>> nonzero_pseudo_random() is throwing. Why isn't that an assert instead?
>>>
>>> https://github.com/libbitcoin/libbitcoin/blob/master/src/utility/random.cpp#L46
>>>
>>> Here is the backtrace:
>>>
>>> #9  libbitcoin::pseudo_random () at src/utility/random.cpp:39
>>> #10 0x00007ffff5a3d48d in libbitcoin::network::hosts::fetch
>>> (this=this@entry=0x657310,
>>>     out=...) at src/collections/hosts.cpp:76
>>> #11 0x00007ffff5a27e7a in
>>> libbitcoin::network::p2p::fetch_address(std::function<void
>>> (std::error_code const&, libbitcoin::message::network_address const&)>)
>>> const (this=0x656ad0,
>>>     handler=...) at src/p2p.cpp:430
>>> #12 0x00007ffff5a5ae5f in
>>> libbitcoin::network::session::fetch_address(std::function<void
>>> (std::error_code const&, libbitcoin::config::authority const&)>) const (
>>>     this=this@entry=0x7fff280d6330, handler=...) at
>>> src/sessions/session.cpp:83
>>> #13 0x00007ffff5a6064e in
>>> libbitcoin::network::session_batch::new_connect(std::shared_ptr<libbitcoin::network::connector>,
>>> std::function<void (std::error_code const&,
>>> std::shared_ptr<libbitcoin::network::channel>)>)
>>> (this=this@entry=0x7fff280d6330,
>>>     connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760, handler=...)
>>>     at src/sessions/session_batch.cpp:70
>>> #14 0x00007ffff5a60b53 in
>>> libbitcoin::network::session_batch::connect(std::shared_ptr<libbitcoin::network::connector>,
>>> std::function<void (std::error_code const&,
>>> std::shared_ptr<libbitcoin::network::channel>)>) (this=0x7fff280d6330,
>>>     connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760, handler=...)
>>>     at src/sessions/session_batch.cpp:56
>>> #15 0x00007ffff5a6f335 in
>>> libbitcoin::network::session_outbound::new_connection (
>>>     this=this@entry=0x7fff280d6330,
>>>     connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760)
>>>     at src/sessions/session_outbound.cpp:87
>>> #16 0x00007ffff5a6f7d1 in
>>> libbitcoin::network::session_outbound::handle_connect (
>>>     this=0x7fff280d6330, ec=..., channel=...,
>>>     connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760)
>>>     at src/sessions/session_outbound.cpp:97

>>>
>>>
>>>
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