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|
/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2008 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "exitcodes.h"
#include <port.h>
#include "socketengines/socketengine_ports.h"
PortsEngine::PortsEngine(InspIRCd* Instance) : SocketEngine(Instance)
{
EngineHandle = port_create();
if (EngineHandle == -1)
{
ServerInstance->Log(SPARSE,"ERROR: Could not initialize socket engine: %s", strerror(errno));
ServerInstance->Log(SPARSE,"ERROR: This is a fatal error, exiting now.");
printf("ERROR: Could not initialize socket engine: %s\n", strerror(errno));
printf("ERROR: This is a fatal error, exiting now.\n");
ServerInstance->Exit(EXIT_STATUS_SOCKETENGINE);
}
CurrentSetSize = 0;
}
PortsEngine::~PortsEngine()
{
this->Close(EngineHandle);
}
bool PortsEngine::AddFd(EventHandler* eh)
{
int fd = eh->GetFd();
if ((fd < 0) || (fd > MAX_DESCRIPTORS))
return false;
if (GetRemainingFds() <= 1)
return false;
if (ref[fd])
return false;
ref[fd] = eh;
port_associate(EngineHandle, PORT_SOURCE_FD, fd, eh->Readable() ? POLLRDNORM : POLLWRNORM, eh);
ServerInstance->Log(DEBUG,"New file descriptor: %d", fd);
CurrentSetSize++;
return true;
}
void PortsEngine::WantWrite(EventHandler* eh)
{
port_associate(EngineHandle, PORT_SOURCE_FD, eh->GetFd(), POLLWRNORM, eh);
}
bool PortsEngine::DelFd(EventHandler* eh, bool force)
{
int fd = eh->GetFd();
if ((fd < 0) || (fd > MAX_DESCRIPTORS))
return false;
port_dissociate(EngineHandle, PORT_SOURCE_FD, fd);
CurrentSetSize--;
ref[fd] = NULL;
ServerInstance->Log(DEBUG,"Remove file descriptor: %d", fd);
return true;
}
int PortsEngine::GetMaxFds()
{
return MAX_DESCRIPTORS;
}
int PortsEngine::GetRemainingFds()
{
return MAX_DESCRIPTORS - CurrentSetSize;
}
int PortsEngine::DispatchEvents()
{
struct timespec poll_time;
poll_time.tv_sec = 1;
poll_time.tv_nsec = 0;
unsigned int nget = 1; // used to denote a retrieve request.
int i = port_getn(EngineHandle, this->events, MAX_DESCRIPTORS, &nget, &poll_time);
// first handle an error condition
if (i == -1)
return i;
for (i = 0; i < nget; i++)
{
switch (this->events[i].portev_source)
{
case PORT_SOURCE_FD:
{
int fd = this->events[i].portev_object;
if (ref[fd])
{
// reinsert port for next time around
port_associate(EngineHandle, PORT_SOURCE_FD, fd, POLLRDNORM, ref[fd]);
ref[fd]->HandleEvent((this->events[i].portev_events & POLLRDNORM) ? EVENT_READ : EVENT_WRITE);
}
}
default:
break;
}
}
return i;
}
std::string PortsEngine::GetName()
{
return "ports";
}
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