lokinet/llarp/path/pathset.cpp

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#include <path/pathset.hpp>
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#include <dht/messages/pubintro.hpp>
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#include <path/path.hpp>
#include <routing/dht_message.hpp>
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#include <router/abstractrouter.hpp>
namespace llarp
{
namespace path
{
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PathSet::PathSet(size_t num) : numPaths(num)
{
}
bool
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PathSet::ShouldBuildMore(llarp_time_t now) const
{
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(void)now;
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const auto building = NumInStatus(ePathBuilding);
if (building >= numPaths)
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return false;
const auto established = NumInStatus(ePathEstablished);
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return established < numPaths;
}
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bool
PathSet::ShouldBuildMoreForRoles(llarp_time_t now, PathRole roles) const
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
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const size_t required = MinRequiredForRoles(roles);
size_t has = 0;
for (const auto& item : m_Paths)
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{
if (item.second->SupportsAnyRoles(roles))
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{
if (!item.second->ExpiresSoon(now))
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++has;
}
}
return has < required;
}
size_t
PathSet::MinRequiredForRoles(PathRole roles) const
{
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(void)roles;
return 0;
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}
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size_t
PathSet::NumPathsExistingAt(llarp_time_t futureTime) const
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{
size_t num = 0;
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
for (const auto& item : m_Paths)
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{
if (item.second->IsReady() && !item.second->Expired(futureTime))
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++num;
}
return num;
}
void
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PathSet::TickPaths(AbstractRouter* r)
{
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const auto now = llarp::time_now_ms();
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
for (auto& item : m_Paths)
{
item.second->Tick(now, r);
}
}
void
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PathSet::ExpirePaths(llarp_time_t now, AbstractRouter* router)
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
if (m_Paths.size() == 0)
return;
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
{
if (itr->second->Expired(now))
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{
router->outboundMessageHandler().QueueRemoveEmptyPath(itr->second->TXID());
itr = m_Paths.erase(itr);
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}
else
++itr;
}
}
Path_ptr
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PathSet::GetEstablishedPathClosestTo(RouterID id, PathRole roles) const
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{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
Path_ptr path = nullptr;
AlignedBuffer<32> dist;
AlignedBuffer<32> to = id;
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dist.Fill(0xff);
for (const auto& item : m_Paths)
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{
if (!item.second->IsReady())
continue;
if (!item.second->SupportsAnyRoles(roles))
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continue;
AlignedBuffer<32> localDist = item.second->Endpoint() ^ to;
if (localDist < dist)
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{
dist = localDist;
path = item.second;
}
}
return path;
}
Path_ptr
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PathSet::GetNewestPathByRouter(RouterID id, PathRole roles) const
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
Path_ptr chosen = nullptr;
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
{
if (itr->second->IsReady() && itr->second->SupportsAnyRoles(roles))
{
if (itr->second->Endpoint() == id)
{
if (chosen == nullptr)
chosen = itr->second;
else if (chosen->intro.expiresAt < itr->second->intro.expiresAt)
chosen = itr->second;
}
}
++itr;
}
return chosen;
}
Path_ptr
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PathSet::GetPathByRouter(RouterID id, PathRole roles) const
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{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
Path_ptr chosen = nullptr;
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
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{
if (itr->second->IsReady() && itr->second->SupportsAnyRoles(roles))
{
if (itr->second->Endpoint() == id)
{
if (chosen == nullptr)
chosen = itr->second;
else if (chosen->intro.latency > itr->second->intro.latency)
chosen = itr->second;
}
}
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++itr;
}
return chosen;
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}
Path_ptr
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PathSet::GetByEndpointWithID(RouterID ep, PathID_t id) const
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
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auto itr = m_Paths.begin();
while (itr != m_Paths.end())
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{
if (itr->second->IsEndpoint(ep, id))
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{
return itr->second;
}
++itr;
}
return nullptr;
}
Path_ptr
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PathSet::GetPathByID(PathID_t id) const
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{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
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auto itr = m_Paths.begin();
while (itr != m_Paths.end())
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{
if (itr->second->RXID() == id)
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return itr->second;
++itr;
}
return nullptr;
}
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size_t
PathSet::AvailablePaths(PathRole roles) const
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
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Lock_t l(m_PathsMutex);
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size_t count = 0;
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
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{
if (itr->second->Status() == ePathEstablished && itr->second->SupportsAnyRoles(roles))
2018-11-16 14:06:50 +00:00
++count;
++itr;
}
return count;
}
size_t
PathSet::NumInStatus(PathStatus st) const
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
size_t count = 0;
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
{
if (itr->second->Status() == st)
++count;
++itr;
}
return count;
}
void
PathSet::AddPath(Path_ptr path)
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
2019-11-05 16:58:53 +00:00
const auto upstream = path->Upstream(); // RouterID
const auto RXID = path->RXID(); // PathID
if (not m_Paths.emplace(std::make_pair(upstream, RXID), path).second)
2019-11-05 16:58:53 +00:00
{
LogError(
Name(),
" failed to add own path, duplicate info wtf? upstream=",
upstream,
" rxid=",
RXID);
2019-11-05 16:58:53 +00:00
}
}
void
PathSet::RemovePath(Path_ptr path)
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
m_Paths.erase({path->Upstream(), path->RXID()});
}
Path_ptr
2018-12-18 18:36:19 +00:00
PathSet::GetByUpstream(RouterID remote, PathID_t rxid) const
{
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
auto itr = m_Paths.find({remote, rxid});
if (itr == m_Paths.end())
return nullptr;
return itr->second;
}
bool
PathSet::GetCurrentIntroductionsWithFilter(
std::set<service::Introduction>& intros,
std::function<bool(const service::Introduction&)> filter) const
{
intros.clear();
size_t count = 0;
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
{
if (itr->second->IsReady() && filter(itr->second->intro))
{
intros.insert(itr->second->intro);
++count;
}
++itr;
}
return count > 0;
}
2018-07-09 17:32:11 +00:00
bool
PathSet::GetCurrentIntroductions(std::set<service::Introduction>& intros) const
{
2018-07-17 06:17:13 +00:00
intros.clear();
size_t count = 0;
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
{
if (itr->second->IsReady())
{
2018-07-19 04:58:39 +00:00
intros.insert(itr->second->intro);
++count;
}
++itr;
}
return count > 0;
}
void
PathSet::HandlePathBuildTimeout(Path_ptr p)
{
LogWarn(Name(), " path build ", p->ShortName(), " timed out");
2019-07-01 13:44:25 +00:00
m_BuildStats.timeouts++;
}
void
PathSet::HandlePathBuildFailed(Path_ptr p)
{
LogWarn(Name(), " path build ", p->ShortName(), " failed");
2019-08-02 03:25:48 +00:00
m_BuildStats.fails++;
}
2019-07-01 13:44:25 +00:00
void
PathSet::PathBuildStarted(Path_ptr p)
{
LogInfo(Name(), " path build ", p->ShortName(), " started");
2019-07-01 13:44:25 +00:00
m_BuildStats.attempts++;
}
util::StatusObject
BuildStats::ExtractStatus() const
{
return util::StatusObject{
{"success", success}, {"attempts", attempts}, {"timeouts", timeouts}, {"fails", fails}};
2019-07-01 13:44:25 +00:00
}
std::string
BuildStats::ToString() const
{
std::stringstream ss;
2020-02-26 02:27:34 +00:00
ss << (SuccessRatio() * 100.0) << " percent success ";
2019-07-01 13:44:25 +00:00
ss << "(success=" << success << " ";
ss << "attempts=" << attempts << " ";
ss << "timeouts=" << timeouts << " ";
ss << "fails=" << fails << ")";
return ss.str();
}
double
2020-02-26 02:27:34 +00:00
BuildStats::SuccessRatio() const
2019-07-01 13:44:25 +00:00
{
if (attempts)
return double(success) / double(attempts);
return 0.0;
}
bool
PathSet::GetNewestIntro(service::Introduction& intro) const
{
2018-09-27 11:03:01 +00:00
intro.Clear();
bool found = false;
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
{
if (itr->second->IsReady() && itr->second->intro.expiresAt > intro.expiresAt)
{
intro = itr->second->intro;
found = true;
}
++itr;
}
return found;
}
Path_ptr
2018-11-14 18:02:27 +00:00
PathSet::PickRandomEstablishedPath(PathRole roles) const
{
std::vector<Path_ptr> established;
De-abseil, part 2: mutex, locks, (most) time - util::Mutex is now a std::shared_timed_mutex, which is capable of exclusive and shared locks. - util::Lock is still present as a std::lock_guard<util::Mutex>. - the locking annotations are preserved, but updated to the latest supported by clang rather than using abseil's older/deprecated ones. - ACQUIRE_LOCK macro is gone since we don't pass mutexes by pointer into locks anymore (WTF abseil). - ReleasableLock is gone. Instead there are now some llarp::util helper methods to obtain unique and/or shared locks: - `auto lock = util::unique_lock(mutex);` gets an RAII-but-also unlockable object (std::unique_lock<T>, with T inferred from `mutex`). - `auto lock = util::shared_lock(mutex);` gets an RAII shared (i.e. "reader") lock of the mutex. - `auto lock = util::unique_locks(mutex1, mutex2, mutex3);` can be used to atomically lock multiple mutexes at once (returning a tuple of the locks). This are templated on the mutex which makes them a bit more flexible than using a concrete type: they can be used for any type of lockable mutex, not only util::Mutex. (Some of the code here uses them for getting locks around a std::mutex). Until C++17, using the RAII types is painfully verbose: ```C++ // pre-C++17 - needing to figure out the mutex type here is annoying: std::unique_lock<util::Mutex> lock(mutex); // pre-C++17 and even more verbose (but at least the type isn't needed): std::unique_lock<decltype(mutex)> lock(mutex); // our compromise: auto lock = util::unique_lock(mutex); // C++17: std::unique_lock lock(mutex); ``` All of these functions will also warn (under gcc or clang) if you discard the return value. You can also do fancy things like `auto l = util::unique_lock(mutex, std::adopt_lock)` (which lets a lock take over an already-locked mutex). - metrics code is gone, which also removes a big pile of code that was only used by metrics: - llarp::util::Scheduler - llarp::thread::TimerQueue - llarp::util::Stopwatch
2020-02-21 17:21:11 +00:00
Lock_t l(m_PathsMutex);
auto itr = m_Paths.begin();
while (itr != m_Paths.end())
{
if (itr->second->IsReady() && itr->second->SupportsAnyRoles(roles))
established.push_back(itr->second);
++itr;
}
auto sz = established.size();
if (sz)
{
return established[randint() % sz];
}
2019-07-06 17:03:40 +00:00
return nullptr;
}
2019-09-05 17:39:09 +00:00
void
PathSet::UpstreamFlush(AbstractRouter* r)
{
ForEachPath([r](const Path_ptr& p) { p->FlushUpstream(r); });
}
2019-09-05 17:39:09 +00:00
void
PathSet::DownstreamFlush(AbstractRouter* r)
2019-09-05 17:39:09 +00:00
{
ForEachPath([r](const Path_ptr& p) { p->FlushDownstream(r); });
2019-09-05 17:39:09 +00:00
}
} // namespace path
} // namespace llarp