libbitcoin · evoskuil · Aug 4, 2026 · Aug 3, 2026 · Aug 4, 2026 · Aug 4, 2026
diff --git a/builds/cmake/install-cmake.sh b/builds/cmake/install-cmake.sh
@@ -71,7 +71,7 @@ if [[ -z ${secp256k1_OWNER} ]]; then
     secp256k1_OWNER="bitcoin-core"
 fi
 if [[ -z ${secp256k1_TAG} ]]; then
-    secp256k1_TAG="v0.7.0"
+    secp256k1_TAG="v0.8.0"
 fi
 
 if [[ -z ${UltrafastSecp256k1_OWNER} ]]; then

diff --git a/builds/cmake/install-presets.sh b/builds/cmake/install-presets.sh
@@ -61,7 +61,7 @@ if [[ -z ${secp256k1_OWNER} ]]; then
     secp256k1_OWNER="bitcoin-core"
 fi
 if [[ -z ${secp256k1_TAG} ]]; then
-    secp256k1_TAG="v0.7.0"
+    secp256k1_TAG="v0.8.0"
 fi
 
 if [[ -z ${UltrafastSecp256k1_OWNER} ]]; then

diff --git a/builds/gnu/configure.ac b/builds/gnu/configure.ac
@@ -97,7 +97,7 @@ AC_SUBST([pkgconfigdir],[${with_pkgconfigdir}])
 AC_MSG_CHECKING([--enable-ndebug option])
 AC_ARG_ENABLE([ndebug],
     AS_HELP_STRING([--enable-ndebug],
-        [Compile with NDEBUG assertion. @<:@default=yes@:>@]),
+        [Compile with NDEBUG (no debug assertions). @<:@default=yes@:>@]),
     [enable_ndebug=$enableval],
     [enable_ndebug=yes])
 AC_MSG_RESULT([$enable_ndebug])

diff --git a/builds/gnu/install-gnu.sh b/builds/gnu/install-gnu.sh
@@ -71,7 +71,7 @@ if [[ -z ${secp256k1_OWNER} ]]; then
     secp256k1_OWNER="bitcoin-core"
 fi
 if [[ -z ${secp256k1_TAG} ]]; then
-    secp256k1_TAG="v0.7.0"
+    secp256k1_TAG="v0.8.0"
 fi
 
 if [[ -z ${UltrafastSecp256k1_OWNER} ]]; then

diff --git a/builds/msvc/vs2026/libbitcoin-network-test/libbitcoin-network-test.vcxproj b/builds/msvc/vs2026/libbitcoin-network-test/libbitcoin-network-test.vcxproj
@@ -422,7 +422,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
-    <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
@@ -438,7 +438,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_unit_test_framework-vc145.1.91.0\build\libbitcoin-boost_unit_test_framework-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets'))" />
   </Target>
   <ItemGroup>

diff --git a/builds/msvc/vs2026/libbitcoin-network-test/packages.config b/builds/msvc/vs2026/libbitcoin-network-test/packages.config
@@ -16,5 +16,5 @@
   <package id="libbitcoin-boost_thread-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_unit_test_framework-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_url-vc145" version="1.91.0" targetFramework="Native" />
-  <package id="secp256k1_vc145" version="0.6.1.2" targetFramework="Native" />
+  <package id="secp256k1_vc145" version="0.8.0" targetFramework="Native" />
 </packages>
diff --git a/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj b/builds/msvc/vs2026/libbitcoin-network/libbitcoin-network.vcxproj
@@ -598,7 +598,7 @@
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_program_options-vc145.1.91.0\build\libbitcoin-boost_program_options-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_program_options-vc145.1.91.0\build\libbitcoin-boost_program_options-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets" Condition="Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" />
-    <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" />
+    <Import Project="$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets" Condition="Exists('$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets')" />
     <Import Project="$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets" Condition="Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
@@ -613,7 +613,7 @@
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_program_options-vc145.1.91.0\build\libbitcoin-boost_program_options-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_program_options-vc145.1.91.0\build\libbitcoin-boost_program_options-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_thread-vc145.1.91.0\build\libbitcoin-boost_thread-vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)libbitcoin-boost_url-vc145.1.91.0\build\libbitcoin-boost_url-vc145.targets'))" />
-    <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.6.1.2\build\native\secp256k1_vc145.targets'))" />
+    <Error Condition="!Exists('$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)secp256k1_vc145.0.8.0\build\native\secp256k1_vc145.targets'))" />
     <Error Condition="!Exists('$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(NuGetPackageRoot)UltrafastSecp256k1-vc145.4.5.0.0\build\native\UltrafastSecp256k1-vc145.targets'))" />
   </Target>
   <ItemGroup>

diff --git a/builds/msvc/vs2026/libbitcoin-network/packages.config b/builds/msvc/vs2026/libbitcoin-network/packages.config
@@ -15,5 +15,5 @@
   <package id="libbitcoin-boost_program_options-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_thread-vc145" version="1.91.0" targetFramework="Native" />
   <package id="libbitcoin-boost_url-vc145" version="1.91.0" targetFramework="Native" />
-  <package id="secp256k1_vc145" version="0.6.1.2" targetFramework="Native" />
+  <package id="secp256k1_vc145" version="0.8.0" targetFramework="Native" />
 </packages>
diff --git a/include/bitcoin/network/channels/channel.hpp b/include/bitcoin/network/channels/channel.hpp
@@ -93,6 +93,12 @@ class BCT_API channel
     const options_t& options() const NOEXCEPT;
 
 protected:
+    /// The network and service rate limits overlap, so the more restrictive
+    /// applies. Zero is unlimited, and therefore the less restrictive, so the
+    /// maximum applies if either is zero (zero only if both are zero).
+    static uint32_t rate_limited(const settings_t& settings,
+        const options_t& options) NOEXCEPT;
+
     /// Construct a channel to encapsulated and communicate on the socket.
     channel(const logger& log, const socket::ptr& socket, uint64_t identifier,
         const settings_t& settings, const options_t& options) NOEXCEPT;

diff --git a/include/bitcoin/network/net/proxy.hpp b/include/bitcoin/network/net/proxy.hpp
@@ -28,6 +28,7 @@
 #include <bitcoin/network/define.hpp>
 #include <bitcoin/network/memory.hpp>
 #include <bitcoin/network/messages/messages.hpp>
+#include <bitcoin/network/net/deadline.hpp>
 #include <bitcoin/network/net/socket.hpp>
 
 namespace libbitcoin {
@@ -40,6 +41,11 @@ namespace network {
 /// Completion handler is invoked once write is complete, at which point the
 /// next queued write is invoked. When a channel stops with pending writes the
 /// write queue is purged without invoke of the purged handlers.
+/// Each send is allocated (bytes/rate_limit) of time, and its completion is
+/// deferred by whatever portion of that allocation the write did not consume.
+/// Since nothing is produced until the completion handler is invoked, this
+/// throttles the channel without queueing. Reads are not metered, as they are
+/// bounded by protocol correctness. Zero rate_limit disables the throttle.
 class BCT_API proxy
   : public enable_shared_from_base<proxy>, public reporter
 {
@@ -111,7 +117,7 @@ class BCT_API proxy
     const config::endpoint& endpoint() const NOEXCEPT;
 
 protected:
-    proxy(const socket::ptr& socket) NOEXCEPT;
+    proxy(const socket::ptr& socket, uint32_t rate_limit) NOEXCEPT;
 
     /// Stranded event, allows timer reset.
     virtual void reading() NOEXCEPT;
@@ -122,6 +128,15 @@ class BCT_API proxy
     /// Subscribe to stop notification (requires strand).
     void subscribe_stop(result_handler&& handler) NOEXCEPT;
 
+    /// Throttle.
+    /// -----------------------------------------------------------------------
+
+    /// Unconsumed portion of the byte allocation, by which a send completing
+    /// now is deferred. Zero if unlimited, stopped, or fully consumed by the
+    /// transmission (requires strand).
+    steady_clock::duration unconsumed(size_t bytes,
+        const steady_clock::time_point& start) const NOEXCEPT;
+
     /// Wait.
     /// -----------------------------------------------------------------------
 
@@ -243,15 +258,25 @@ class BCT_API proxy
     void handle_write(const code& ec, size_t bytes,
         const count_handler& handler) NOEXCEPT;
 
+    // Meter sent bytes and defer the completion by the unconsumed allocation.
+    count_handler metered(count_handler&& handler) NOEXCEPT;
+    void handle_metered(const code& ec, size_t bytes,
+        const steady_clock::time_point& start,
+        const count_handler& handler) NOEXCEPT;
+    void handle_charge(const code&, const code& ec, size_t bytes,
+        const count_handler& handler) NOEXCEPT;
+
     // Invoke reading() on strand.
     void do_reading() NOEXCEPT;
 
     // These are thread safe.
     std::atomic_bool paused_{ true };
     std::atomic<uint64_t> total_{};
+    const uint32_t rate_limit_;
     socket::ptr socket_;
 
     // These are protected by strand.
+    deadline::ptr throttle_;
     stop_subscriber stop_subscriber_{};
     socket::http_parser_ptr parser_{};
     queue deferred_{};

diff --git a/include/bitcoin/network/settings.hpp b/include/bitcoin/network/settings.hpp
@@ -75,6 +75,10 @@ struct BCT_API settings
         uint32_t maximum_request{ maximum_request_default };
         uint32_t minimum_buffer{ maximum_request_default };
 
+        /// Service send rate limit, overlapping the network rate limit (see
+        /// settings::rate_limited). Zero is unlimited.
+        uint32_t rate_limit{ 0 };
+
         /// Helpers.
         virtual bool enabled() const NOEXCEPT;
         virtual steady_clock::duration inactivity() const NOEXCEPT;
@@ -297,7 +301,12 @@ struct BCT_API settings
     uint32_t handshake_timeout_seconds{ 15 };
     uint32_t channel_heartbeat_minutes{ 5 };
     uint32_t maximum_skew_minutes{ 120 };
-    uint32_t rate_limit{ 1024  };
+
+    /// Bytes/second allocated to each channel for sending, zero is unlimited.
+    /// A send is deferred by the unconsumed portion of its byte allocation,
+    /// which the next send of the channel cannot start until it expires.
+    /// Overlaps tcp_server::rate_limit (see settings::rate_limited).
+    uint32_t rate_limit{ 0 };
     std::string user_agent{ BC_USER_AGENT };
     std::filesystem::path path{};
     config::authorities blacklists{};

diff --git a/src/channels/channel.cpp b/src/channels/channel.cpp
@@ -18,6 +18,7 @@
  */
 #include <bitcoin/network/channels/channel.hpp>
 
+#include <algorithm>
 #include <bitcoin/network/config/config.hpp>
 #include <bitcoin/network/define.hpp>
 #include <bitcoin/network/log/log.hpp>
@@ -41,12 +42,21 @@ inline deadline::ptr make_timer(const logger& log, asio::strand& strand,
         emplace_shared<deadline>(log, strand, span) : nullptr;
 }
 
+// protected/static
+uint32_t channel::rate_limited(const settings_t& settings,
+    const options_t& options) NOEXCEPT
+{
+    return to_bool(settings.rate_limit) && to_bool(options.rate_limit) ?
+        std::min(settings.rate_limit, options.rate_limit) :
+        std::max(settings.rate_limit, options.rate_limit);
+}
+
 // Protocols invoke channel stop for application layer protocol violations.
 // Channels invoke channel stop for channel timouts and communcation failures.
 channel::channel(const logger& log, const socket::ptr& socket,
     uint64_t identifier, const settings_t& settings,
     const options_t& options) NOEXCEPT
-  : proxy(socket),
+  : proxy(socket, rate_limited(settings, options)),
     options_(options),
     settings_(settings),
     identifier_(identifier),
@@ -112,7 +122,9 @@ void channel::handle_monitor(const code& ec) NOEXCEPT
 
 // Timers.
 // ----------------------------------------------------------------------------
-// TODO: build DoS protection around rate_limit_, total(), and time.
+// Send throttling (settings.rate_limit) is implemented by the proxy. A channel
+// whose accrued deferral exceeds inactivity is dropped by that timer, which is
+// the intended outcome (the throttle degrades to disconnection under abuse).
 // A restarted timer invokes completion handler with error::operation_canceled.
 // Called from start or strand.
 

diff --git a/src/net/proxy.cpp b/src/net/proxy.cpp
@@ -28,11 +28,21 @@ namespace network {
 
 BC_PUSH_WARNING(NO_THROW_IN_NOEXCEPT)
 
+// Factory for variable deadline timer pointer construction (or null).
+inline deadline::ptr make_throttle(const logger& log, asio::strand& strand,
+    uint32_t rate_limit) NOEXCEPT
+{
+    return to_bool(rate_limit) ?
+        system::emplace_shared<deadline>(log, strand) : nullptr;
+}
+
 // This is created in a started state and must be stopped, as the subscribers
 // assert if not stopped. Subscribers may hold protocols even if the service
 // is not started.
-proxy::proxy(const socket::ptr& socket) NOEXCEPT
-  : socket_(socket),
+proxy::proxy(const socket::ptr& socket, uint32_t rate_limit) NOEXCEPT
+  : rate_limit_(rate_limit),
+    socket_(socket),
+    throttle_(make_throttle(socket->log, socket->strand(), rate_limit)),
     reporter(socket->log)
 {
 }
@@ -75,6 +85,10 @@ void proxy::do_stop(const code& ec) NOEXCEPT
     BC_ASSERT(stranded());
     using namespace std::placeholders;
 
+    // The socket is not yet stopped, so a deferred send still holds the queue.
+    // Release it here so that the close part is not delayed by the throttle.
+    if (throttle_) throttle_->stop();
+
     batched_ = false;
     parted_ = false;
 
@@ -138,6 +152,9 @@ void proxy::stopping(const code& ec) NOEXCEPT
 {
     BC_ASSERT(stranded());
 
+    // Release any deferred send (fires pending charge with canceled).
+    if (throttle_) throttle_->stop();
+
     // Release any http message parse in progress.
     parser_.reset();
 

diff --git a/src/net/proxy_actions.cpp b/src/net/proxy_actions.cpp
@@ -73,8 +73,8 @@ void proxy::do_ws_write(const asio::const_buffer& payload, bool binary,
     const count_handler& handler) NOEXCEPT
 {
     socket_->ws_write({ payload.data(), payload.size() }, binary,
-        std::bind(&proxy::handle_write,
-            shared_from_this(), _1, _2, handler));
+        metered(std::bind(&proxy::handle_write,
+            shared_from_this(), _1, _2, handler)));
 }
 
 //  TCP (generic, fixed size).
@@ -103,8 +103,8 @@ void proxy::do_tcp_write(const asio::const_buffer& payload,
     const count_handler& handler) NOEXCEPT
 {
     socket_->tcp_write({ payload.data(), payload.size() },
-        std::bind(&proxy::handle_write,
-            shared_from_this(), _1, _2, handler));
+        metered(std::bind(&proxy::handle_write,
+            shared_from_this(), _1, _2, handler)));
 }
 
 // RPC (TCP: electrum/stratum_v1, WS: btcd).
@@ -256,17 +256,17 @@ void proxy::do_response_write(const rpc::response_ptr& response,
     }
 
     socket_->rpc_write(std::move(*response),
-        std::bind(&proxy::handle_write,
-            shared_from_this(), _1, _2, handler));
+        metered(std::bind(&proxy::handle_write,
+            shared_from_this(), _1, _2, handler)));
 }
 
 // private
 void proxy::do_notification_write(const rpc::request_ptr& notification,
     const count_handler& handler) NOEXCEPT
 {
     socket_->rpc_notify(std::move(*notification),
-        std::bind(&proxy::handle_write,
-            shared_from_this(), _1, _2, handler));
+        metered(std::bind(&proxy::handle_write,
+            shared_from_this(), _1, _2, handler)));
 }
 
 // HTTP/WS (generic/rpc).
@@ -466,7 +466,8 @@ void proxy::write(http::response&& response,
 
         if (parted_)
         {
-            socket_->rpc_write_chunk(std::move(part), std::move(handler));
+            socket_->rpc_write_chunk(std::move(part),
+                metered(std::move(handler)));
             return;
         }
 
@@ -477,13 +478,13 @@ void proxy::write(http::response&& response,
 
         const auto out = move_shared(std::move(part));
         socket_->http_write_header(std::move(response),
-            std::bind(&proxy::handle_http_header_write,
-                shared_from_this(), _1, _2, out, std::move(handler)));
+            metered(std::bind(&proxy::handle_http_header_write,
+                shared_from_this(), _1, _2, out, std::move(handler))));
         return;
     }
 
     // http is half duplex so there is no interleave risk.
-    socket_->http_write(std::move(response), std::move(handler));
+    socket_->http_write(std::move(response), metered(std::move(handler)));
 }
 
 // private
@@ -498,16 +499,16 @@ void proxy::handle_http_header_write(const code& ec, size_t bytes,
         return;
     }
 
-    socket_->rpc_write_chunk(std::move(*part), move_copy(handler));
+    socket_->rpc_write_chunk(std::move(*part), metered(move_copy(handler)));
 }
 
 // private
 void proxy::do_http_write(const http::response_ptr& response,
     const count_handler& handler) NOEXCEPT
 {
     socket_->http_write(std::move(*response),
-        std::bind(&proxy::handle_write,
-            shared_from_this(), _1, _2, handler));
+        metered(std::bind(&proxy::handle_write,
+            shared_from_this(), _1, _2, handler)));
 }
 
 BC_POP_WARNING()