TCP_USER_TIMEOUT
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@ -228,6 +228,9 @@ interface EventDriverSockets {
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*/
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void setKeepAliveParams(StreamSocketFD socket, Duration idle, Duration interval, int probeCount = 5);
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/// Sets `TCP_USER_TIMEOUT` socket option (linux only). https://tools.ietf.org/html/rfc5482
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void setUserTimeout(StreamSocketFD socket, Duration timeout);
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/** Reads data from a stream socket.
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Note that only a single read operation is allowed at once. The caller
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@ -50,10 +50,12 @@ version (linux) {
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// Linux-specific TCP options
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// https://github.com/torvalds/linux/blob/master/include/uapi/linux/tcp.h#L95
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// Some day we should siply import core.sys.linux.netinet.tcp;
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enum SOL_TCP = 6;
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enum TCP_KEEPIDLE = 4;
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enum TCP_KEEPINTVL = 5;
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enum TCP_KEEPCNT = 6;
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enum TCP_USER_TIMEOUT = 18;
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}
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version(OSX) {
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static if (__VERSION__ < 2077) {
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@ -303,22 +305,54 @@ final class PosixEventDriverSockets(Loop : PosixEventLoop) : EventDriverSockets
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() @trusted { setsockopt(cast(sock_t)socket, IPPROTO_TCP, TCP_NODELAY, cast(char*)&opt, opt.sizeof); } ();
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}
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final override void setKeepAlive(StreamSocketFD socket, bool enable)
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override void setKeepAlive(StreamSocketFD socket, bool enable) @trusted
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{
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ubyte opt = enable;
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() @trusted { setsockopt(cast(sock_t)socket, SOL_SOCKET, SO_KEEPALIVE, cast(char*)&opt, opt.sizeof); } ();
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int opt = enable;
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int err = setsockopt(cast(sock_t)socket, SOL_SOCKET, SO_KEEPALIVE, &opt, int.sizeof);
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if (err != 0)
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{
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print("sock error %s", getSocketError);
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assert(0, "unable to set SO_KEEPALIVE option");
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}
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}
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override void setKeepAliveParams(StreamSocketFD socket, Duration idle, Duration interval, int probeCount) @trusted
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{
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version (linux) {
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ubyte opt = 1;
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setsockopt(cast(sock_t)socket, SOL_SOCKET, SO_KEEPALIVE, cast(char*)&opt, opt.sizeof);
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setKeepAlive(socket, true);
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int int_opt = cast(int) idle.total!"seconds"();
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setsockopt(cast(sock_t)socket, SOL_TCP, TCP_KEEPIDLE, &int_opt, int.sizeof);
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int err = setsockopt(cast(sock_t)socket, SOL_TCP, TCP_KEEPIDLE, &int_opt, int.sizeof);
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if (err != 0)
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{
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print("sock error %s", getSocketError);
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assert(0, "unable to set TCP_KEEPIDLE option");
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}
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int_opt = cast(int) interval.total!"seconds"();
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setsockopt(cast(sock_t)socket, SOL_TCP, TCP_KEEPINTVL, &int_opt, int.sizeof);
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setsockopt(cast(sock_t)socket, SOL_TCP, TCP_KEEPCNT, &probeCount, int.sizeof);
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err = setsockopt(cast(sock_t)socket, SOL_TCP, TCP_KEEPINTVL, &int_opt, int.sizeof);
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if (err != 0)
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{
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print("sock error %s", getSocketError);
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assert(0, "unable to set TCP_KEEPINTVL option");
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}
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err = setsockopt(cast(sock_t)socket, SOL_TCP, TCP_KEEPCNT, &probeCount, int.sizeof);
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if (err != 0)
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{
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print("sock error %s", getSocketError);
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assert(0, "unable to set TCP_KEEPCNT option");
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}
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}
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}
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override void setUserTimeout(StreamSocketFD socket, Duration timeout) @trusted
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{
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version (linux) {
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uint tmsecs = cast(uint) timeout.total!"msecs";
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int err = setsockopt(cast(sock_t)socket, SOL_TCP, TCP_USER_TIMEOUT, &tmsecs, uint.sizeof);
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if (err != 0)
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{
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print("sock error %s", getSocketError);
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assert(0, "unable to set TCP_USER_TIMEOUT option");
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}
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}
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}
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@ -223,16 +223,18 @@ final class WinAPIEventDriverSockets : EventDriverSockets {
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override void setKeepAliveParams(StreamSocketFD socket, Duration idle, Duration interval, int probeCount) @trusted
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{
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if (idle < Duration.zero)
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assert(0, "negative idle duration");
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if (interval < Duration.zero)
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assert(0, "negative interval duration");
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tcp_keepalive opts = tcp_keepalive(1, cast(ulong) idle.total!"msecs"(),
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cast(ulong) interval.total!"msecs");
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int result = WSAIoctl(socket, SIO_KEEPALIVE_VALS, &opts, tcp_keepalive.sizeof, null, 0, null, null);
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assert(result == 0);
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if (result != 0)
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{
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print("WSAIoctl SIO_KEEPALIVE_VALS returned %d", result);
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assert(0, "unable to set TCP keepAlive parameters");
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}
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}
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override void setUserTimeout(StreamSocketFD socket, Duration timeout) {}
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override void read(StreamSocketFD socket, ubyte[] buffer, IOMode mode, IOCallback on_read_finish)
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{
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auto slot = () @trusted { return &m_sockets[socket].streamSocket(); } ();
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