X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fsocketengine.cpp;h=3735e7530aa899c65567953bce30f109aa39765c;hb=f471083cd0519d47c7c7a09029813ede41994f7b;hp=80e9eaed97309ac1b4726e9364d35b7c6c99971f;hpb=8790551dc182cd8804ee7d8ef89ccb31067cc2a4;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/socketengine.cpp b/src/socketengine.cpp index 80e9eaed9..3735e7530 100644 --- a/src/socketengine.cpp +++ b/src/socketengine.cpp @@ -23,6 +23,25 @@ #include "inspircd.h" + +/** Reference table, contains all current handlers + **/ +std::vector SocketEngine::ref; + +/** Current number of descriptors in the engine + */ +size_t SocketEngine::CurrentSetSize = 0; + +/** List of handlers that want a trial read/write + */ +std::set SocketEngine::trials; + +int SocketEngine::MAX_DESCRIPTORS; + +/** Socket engine statistics: count of various events, bandwidth usage + */ +SocketEngine::Statistics SocketEngine::stats; + EventHandler::EventHandler() { fd = -1; @@ -34,22 +53,14 @@ void EventHandler::SetFd(int FD) this->fd = FD; } -SocketEngine::SocketEngine() +void EventHandler::OnEventHandlerWrite() { - TotalEvents = WriteEvents = ReadEvents = ErrorEvents = 0; - lastempty = ServerInstance->Time(); - indata = outdata = 0; } -SocketEngine::~SocketEngine() +void EventHandler::OnEventHandlerError(int errornum) { } -void SocketEngine::SetEventMask(EventHandler* eh, int mask) -{ - eh->event_mask = mask; -} - void SocketEngine::ChangeEventMask(EventHandler* eh, int change) { int old_m = eh->event_mask; @@ -88,23 +99,44 @@ void SocketEngine::DispatchTrialWrites() int mask = eh->event_mask; eh->event_mask &= ~(FD_ADD_TRIAL_READ | FD_ADD_TRIAL_WRITE); if ((mask & (FD_ADD_TRIAL_READ | FD_READ_WILL_BLOCK)) == FD_ADD_TRIAL_READ) - eh->HandleEvent(EVENT_READ, 0); + eh->OnEventHandlerRead(); if ((mask & (FD_ADD_TRIAL_WRITE | FD_WRITE_WILL_BLOCK)) == FD_ADD_TRIAL_WRITE) - eh->HandleEvent(EVENT_WRITE, 0); + eh->OnEventHandlerWrite(); } } -bool SocketEngine::HasFd(int fd) +bool SocketEngine::AddFdRef(EventHandler* eh) { - if ((fd < 0) || (fd > GetMaxFds())) + int fd = eh->GetFd(); + if (HasFd(fd)) return false; - return (ref[fd] != NULL); + + while (static_cast(fd) >= ref.size()) + ref.resize(ref.empty() ? 1 : (ref.size() * 2)); + ref[fd] = eh; + CurrentSetSize++; + return true; +} + +void SocketEngine::DelFdRef(EventHandler *eh) +{ + int fd = eh->GetFd(); + if (GetRef(fd) == eh) + { + ref[fd] = NULL; + CurrentSetSize--; + } +} + +bool SocketEngine::HasFd(int fd) +{ + return GetRef(fd) != NULL; } EventHandler* SocketEngine::GetRef(int fd) { - if ((fd < 0) || (fd > GetMaxFds())) - return 0; + if (fd < 0 || static_cast(fd) >= ref.size()) + return NULL; return ref[fd]; } @@ -112,7 +144,7 @@ bool SocketEngine::BoundsCheckFd(EventHandler* eh) { if (!eh) return false; - if ((eh->GetFd() < 0) || (eh->GetFd() > GetMaxFds())) + if (eh->GetFd() < 0) return false; return true; } @@ -123,13 +155,12 @@ int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen) return accept(fd->GetFd(), addr, addrlen); } -int SocketEngine::Close(EventHandler* fd) +int SocketEngine::Close(EventHandler* eh) { -#ifdef _WIN32 - return closesocket(fd->GetFd()); -#else - return close(fd->GetFd()); -#endif + DelFd(eh); + int ret = Close(eh->GetFd()); + eh->SetFd(-1); + return ret; } int SocketEngine::Close(int fd) @@ -172,35 +203,57 @@ void SocketEngine::SetReuse(int fd) int SocketEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen) { int nbRecvd = recvfrom(fd->GetFd(), (char*)buf, len, flags, from, fromlen); - if (nbRecvd > 0) - this->UpdateStats(nbRecvd, 0); + stats.UpdateReadCounters(nbRecvd); return nbRecvd; } int SocketEngine::Send(EventHandler* fd, const void *buf, size_t len, int flags) { int nbSent = send(fd->GetFd(), (const char*)buf, len, flags); - if (nbSent > 0) - this->UpdateStats(0, nbSent); + stats.UpdateWriteCounters(nbSent); return nbSent; } int SocketEngine::Recv(EventHandler* fd, void *buf, size_t len, int flags) { int nbRecvd = recv(fd->GetFd(), (char*)buf, len, flags); - if (nbRecvd > 0) - this->UpdateStats(nbRecvd, 0); + stats.UpdateReadCounters(nbRecvd); return nbRecvd; } int SocketEngine::SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen) { int nbSent = sendto(fd->GetFd(), (const char*)buf, len, flags, to, tolen); - if (nbSent > 0) - this->UpdateStats(0, nbSent); + stats.UpdateWriteCounters(nbSent); return nbSent; } +int SocketEngine::WriteV(EventHandler* fd, const IOVector* iovec, int count) +{ + int sent = writev(fd->GetFd(), iovec, count); + stats.UpdateWriteCounters(sent); + return sent; +} + +#ifdef _WIN32 +int SocketEngine::WriteV(EventHandler* fd, const iovec* iovec, int count) +{ + // On Windows the fields in iovec are not in the order required by the Winsock API; IOVector has + // the fields in the correct order. + // Create temporary IOVectors from the iovecs and pass them to the WriteV() method that accepts the + // platform's native struct. + IOVector wiovec[128]; + count = std::min(count, static_cast(sizeof(wiovec) / sizeof(IOVector))); + + for (int i = 0; i < count; i++) + { + wiovec[i].iov_len = iovec[i].iov_len; + wiovec[i].iov_base = reinterpret_cast(iovec[i].iov_base); + } + return WriteV(fd, wiovec, count); +} +#endif + int SocketEngine::Connect(EventHandler* fd, const sockaddr *serv_addr, socklen_t addrlen) { int ret = connect(fd->GetFd(), serv_addr, addrlen); @@ -231,27 +284,74 @@ int SocketEngine::Shutdown(int fd, int how) return shutdown(fd, how); } -void SocketEngine::RecoverFromFork() +void SocketEngine::Statistics::UpdateReadCounters(int len_in) +{ + CheckFlush(); + + ReadEvents++; + if (len_in > 0) + indata += len_in; + else if (len_in < 0) + ErrorEvents++; +} + +void SocketEngine::Statistics::UpdateWriteCounters(int len_out) { + CheckFlush(); + + WriteEvents++; + if (len_out > 0) + outdata += len_out; + else if (len_out < 0) + ErrorEvents++; } -void SocketEngine::UpdateStats(size_t len_in, size_t len_out) +void SocketEngine::Statistics::CheckFlush() const { - if (lastempty != ServerInstance->Time()) + // Reset the in/out byte counters if it has been more than a second + time_t now = ServerInstance->Time(); + if (lastempty != now) { - lastempty = ServerInstance->Time(); + lastempty = now; indata = outdata = 0; } - indata += len_in; - outdata += len_out; } -void SocketEngine::GetStats(float &kbitpersec_in, float &kbitpersec_out, float &kbitpersec_total) +void SocketEngine::Statistics::GetBandwidth(float& kbitpersec_in, float& kbitpersec_out, float& kbitpersec_total) const { - UpdateStats(0, 0); /* Forces emptying of the values if its been more than a second */ + CheckFlush(); float in_kbit = indata * 8; float out_kbit = outdata * 8; kbitpersec_total = ((in_kbit + out_kbit) / 1024); kbitpersec_in = in_kbit / 1024; kbitpersec_out = out_kbit / 1024; } + +std::string SocketEngine::LastError() +{ +#ifndef _WIN32 + return strerror(errno); +#else + char szErrorString[500]; + DWORD dwErrorCode = WSAGetLastError(); + if (FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dwErrorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)szErrorString, _countof(szErrorString), NULL) == 0) + sprintf_s(szErrorString, _countof(szErrorString), "Error code: %u", dwErrorCode); + + std::string::size_type p; + std::string ret = szErrorString; + while ((p = ret.find_last_of("\r\n")) != std::string::npos) + ret.erase(p, 1); + + return ret; +#endif +} + +std::string SocketEngine::GetError(int errnum) +{ +#ifndef _WIN32 + return strerror(errnum); +#else + WSASetLastError(errnum); + return LastError(); +#endif +}