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/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2009 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
EventHandler::EventHandler()
{
fd = -1;
}
void EventHandler::SetFd(int FD)
{
this->fd = FD;
}
SocketEngine::SocketEngine()
{
TotalEvents = WriteEvents = ReadEvents = ErrorEvents = 0;
lastempty = ServerInstance->Time();
indata = outdata = 0;
}
SocketEngine::~SocketEngine()
{
}
void SocketEngine::SetEventMask(EventHandler* eh, int mask)
{
eh->event_mask = mask;
}
void SocketEngine::ChangeEventMask(EventHandler* eh, int change)
{
int old_m = eh->event_mask;
int new_m = old_m;
// if we are changing read/write type, remove the previously set bit
if (change & FD_WANT_READ_MASK)
new_m &= ~FD_WANT_READ_MASK;
if (change & FD_WANT_WRITE_MASK)
new_m &= ~FD_WANT_WRITE_MASK;
// if adding a trial read/write, insert it into the set
if (change & FD_TRIAL_NOTE_MASK && !(old_m & FD_TRIAL_NOTE_MASK))
trials.insert(eh->GetFd());
new_m |= change;
if (new_m == old_m)
return;
eh->event_mask = new_m;
OnSetEvent(eh, old_m, new_m);
}
void SocketEngine::DispatchTrialWrites()
{
std::vector<int> working_list;
working_list.reserve(trials.size());
working_list.assign(trials.begin(), trials.end());
trials.clear();
for(unsigned int i=0; i < working_list.size(); i++)
{
int fd = working_list[i];
EventHandler* eh = GetRef(fd);
if (!eh)
continue;
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);
if ((mask & (FD_ADD_TRIAL_WRITE | FD_WRITE_WILL_BLOCK)) == FD_ADD_TRIAL_WRITE)
eh->HandleEvent(EVENT_WRITE, 0);
}
}
bool SocketEngine::HasFd(int fd)
{
if ((fd < 0) || (fd > GetMaxFds()))
return false;
return ref[fd];
}
EventHandler* SocketEngine::GetRef(int fd)
{
if ((fd < 0) || (fd > GetMaxFds()))
return 0;
return ref[fd];
}
bool SocketEngine::BoundsCheckFd(EventHandler* eh)
{
if (!eh)
return false;
if ((eh->GetFd() < 0) || (eh->GetFd() > GetMaxFds()))
return false;
return true;
}
int SocketEngine::Accept(EventHandler* fd, sockaddr *addr, socklen_t *addrlen)
{
return accept(fd->GetFd(), addr, addrlen);
}
int SocketEngine::Close(EventHandler* fd)
{
#ifdef WINDOWS
return closesocket(fd->GetFd());
#else
return close(fd->GetFd());
#endif
}
int SocketEngine::Close(int fd)
{
#ifdef WINDOWS
return closesocket(fd);
#else
return close(fd);
#endif
}
int SocketEngine::Blocking(int fd)
{
#ifdef WINDOWS
unsigned long opt = 0;
return ioctlsocket(fd, FIONBIO, &opt);
#else
int flags = fcntl(fd, F_GETFL, 0);
return fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
#endif
}
int SocketEngine::NonBlocking(int fd)
{
#ifdef WINDOWS
unsigned long opt = 1;
return ioctlsocket(fd, FIONBIO, &opt);
#else
int flags = fcntl(fd, F_GETFL, 0);
return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
#endif
}
void SocketEngine::SetReuse(int fd)
{
int on = 1;
struct linger linger = { 0, 0 };
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on));
/* This is BSD compatible, setting l_onoff to 0 is *NOT* http://web.irc.org/mla/ircd-dev/msg02259.html */
linger.l_onoff = 1;
linger.l_linger = 1;
setsockopt(fd, SOL_SOCKET, SO_LINGER, (char*)&linger, sizeof(linger));
}
int SocketEngine::RecvFrom(EventHandler* fd, void *buf, size_t len, int flags, sockaddr *from, socklen_t *fromlen)
{
this->UpdateStats(len, 0);
return recvfrom(fd->GetFd(), (char*)buf, len, flags, from, fromlen);
}
int SocketEngine::Send(EventHandler* fd, const void *buf, size_t len, int flags)
{
this->UpdateStats(0, len);
return send(fd->GetFd(), (char*)buf, len, flags);
}
int SocketEngine::Recv(EventHandler* fd, void *buf, size_t len, int flags)
{
this->UpdateStats(len, 0);
return recv(fd->GetFd(), (char*)buf, len, flags);
}
int SocketEngine::SendTo(EventHandler* fd, const void *buf, size_t len, int flags, const sockaddr *to, socklen_t tolen)
{
this->UpdateStats(0, len);
return sendto(fd->GetFd(), (char*)buf, len, flags, to, tolen);
}
int SocketEngine::Connect(EventHandler* fd, const sockaddr *serv_addr, socklen_t addrlen)
{
return connect(fd->GetFd(), serv_addr, addrlen);
}
int SocketEngine::Shutdown(EventHandler* fd, int how)
{
return shutdown(fd->GetFd(), how);
}
int SocketEngine::Bind(int fd, const sockaddr *my_addr, socklen_t addrlen)
{
return bind(fd, my_addr, addrlen);
}
int SocketEngine::Listen(int sockfd, int backlog)
{
return listen(sockfd, backlog);
}
int SocketEngine::Shutdown(int fd, int how)
{
return shutdown(fd, how);
}
void SocketEngine::RecoverFromFork()
{
}
void SocketEngine::UpdateStats(size_t len_in, size_t len_out)
{
if (lastempty != ServerInstance->Time())
{
lastempty = ServerInstance->Time();
indata = outdata = 0;
}
indata += len_in;
outdata += len_out;
}
void SocketEngine::GetStats(float &kbitpersec_in, float &kbitpersec_out, float &kbitpersec_total)
{
UpdateStats(0, 0); /* Forces emptying of the values if its been more than a second */
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;
}
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