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use mt19937 instead rand

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orignal 2024-06-05 15:08:51 -04:00
parent a1995c13cd
commit d4eea61b82
2 changed files with 9 additions and 5 deletions
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12
libi2pd/NetDbRequests.cpp
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@ -10,9 +10,10 @@
#include "I2NPProtocol.h" #include "I2NPProtocol.h"
#include "Transports.h" #include "Transports.h"
#include "NetDb.hpp" #include "NetDb.hpp"
#include "NetDbRequests.h"
#include "ECIESX25519AEADRatchetSession.h" #include "ECIESX25519AEADRatchetSession.h"
#include "RouterContext.h" #include "RouterContext.h"
#include "Timestamp.h"
#include "NetDbRequests.h"
namespace i2p namespace i2p
{ {
@ -99,7 +100,8 @@ namespace data
NetDbRequests::NetDbRequests (): NetDbRequests::NetDbRequests ():
RunnableServiceWithWork ("NetDbReq"), RunnableServiceWithWork ("NetDbReq"),
m_ManageRequestsTimer (GetIOService ()), m_ExploratoryTimer (GetIOService ()), m_ManageRequestsTimer (GetIOService ()), m_ExploratoryTimer (GetIOService ()),
m_CleanupTimer (GetIOService ()), m_DiscoveredRoutersTimer (GetIOService ()) m_CleanupTimer (GetIOService ()), m_DiscoveredRoutersTimer (GetIOService ()),
m_Rng(i2p::util::GetMonotonicMicroseconds () % 1000000LL)
{ {
} }
@ -509,8 +511,8 @@ namespace data
if (ecode != boost::asio::error::operation_aborted) if (ecode != boost::asio::error::operation_aborted)
{ {
auto numRouters = netdb.GetNumRouters (); auto numRouters = netdb.GetNumRouters ();
auto nextExploratoryInterval = numRouters < 2500 ? (EXPLORATORY_REQUEST_INTERVAL + rand () % EXPLORATORY_REQUEST_INTERVAL)/2 : auto nextExploratoryInterval = numRouters < 2500 ? (EXPLORATORY_REQUEST_INTERVAL + m_Rng () % EXPLORATORY_REQUEST_INTERVAL)/2 :
EXPLORATORY_REQUEST_INTERVAL + rand () % EXPLORATORY_REQUEST_INTERVAL_VARIANCE; EXPLORATORY_REQUEST_INTERVAL + m_Rng () % EXPLORATORY_REQUEST_INTERVAL_VARIANCE;
if (numRouters) if (numRouters)
{ {
if (i2p::transport::transports.IsOnline () && i2p::transport::transports.IsRunning ()) if (i2p::transport::transports.IsOnline () && i2p::transport::transports.IsRunning ())
@ -531,7 +533,7 @@ namespace data
void NetDbRequests::ScheduleDiscoveredRoutersRequest () void NetDbRequests::ScheduleDiscoveredRoutersRequest ()
{ {
m_DiscoveredRoutersTimer.expires_from_now (boost::posix_time::milliseconds( m_DiscoveredRoutersTimer.expires_from_now (boost::posix_time::milliseconds(
DISCOVERED_REQUEST_INTERVAL + rand () % DISCOVERED_REQUEST_INTERVAL_VARIANCE)); DISCOVERED_REQUEST_INTERVAL + m_Rng () % DISCOVERED_REQUEST_INTERVAL_VARIANCE));
m_DiscoveredRoutersTimer.async_wait (std::bind (&NetDbRequests::HandleDiscoveredRoutersTimer, m_DiscoveredRoutersTimer.async_wait (std::bind (&NetDbRequests::HandleDiscoveredRoutersTimer,
this, std::placeholders::_1)); this, std::placeholders::_1));
} }

2
libi2pd/NetDbRequests.h
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@ -11,6 +11,7 @@
#include <inttypes.h> #include <inttypes.h>
#include <memory> #include <memory>
#include <random>
#include <unordered_set> #include <unordered_set>
#include <unordered_map> #include <unordered_map>
#include <list> #include <list>
@ -119,6 +120,7 @@ namespace data
i2p::util::MemoryPoolMt<RequestedDestination> m_RequestedDestinationsPool; i2p::util::MemoryPoolMt<RequestedDestination> m_RequestedDestinationsPool;
boost::asio::deadline_timer m_ManageRequestsTimer, m_ExploratoryTimer, boost::asio::deadline_timer m_ManageRequestsTimer, m_ExploratoryTimer,
m_CleanupTimer, m_DiscoveredRoutersTimer; m_CleanupTimer, m_DiscoveredRoutersTimer;
std::mt19937 m_Rng;
}; };
} }
} }