C / C++ / MFC

PJ Arends1-Jan-07 7:27

PJ Arends

1-Jan-07 7:27

You could try using the SystemParametersInfo() function with the SPI_SETSCREENSAVEACTIVE action.

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good, use it!!!

Michael Dunn1-Jan-07 9:43

Michael Dunn

1-Jan-07 9:43

Call SetThreadExecutionState(ES_DISPLAY_REQUIRED) to tell the system that you're using the display.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Ford, what's this fish doing in my ear?

PJ Arends1-Jan-07 9:57

PJ Arends

1-Jan-07 9:57

From MSDN[^]:

[quote]
This function does not stop the screen saver from executing either.
[/quote]

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good, use it!!!

fatal error LNK1120: 1 unresolved externals in visual c++ 2005

Michael Dunn1-Jan-07 10:03

Michael Dunn

1-Jan-07 10:03

Those docs need some cleanup, since they also say:

Multimedia applications, such as video players and presentation applications, must use ES_DISPLAY_REQUIRED when they display video for long periods of time without user input.

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | PimpFish | CP SearchBar v3.0 | C++ Forum FAQ

Ford, what's this fish doing in my ear?

x-coder20071-Jan-07 6:19

x-coder2007

1-Jan-07 6:19

helo all

i wrote a list like class , i tested it with int type and it works but now i want to make it a template.
when i change it to template i got :
Error 4 error LNK2019: unresolved external symbol "public: __thiscall vector_eu<int>::vector_eu<int>(void)" (??0?$vector_eu@H@@QAE@XZ) referenced in function _wmain

from all the functions i declared outside the class.
i tried to put all the code in a singal file and it works fine, but i don't want this .
i want to have the class declarations in a header file the functions in a CPP file so if i want to use the list later all i have to do is to includ the header file and add the CPP file into my project.

here is the code :

//define element.h<br />
<br />
#include <iostream><br />
<br />
using namespace std;<br />
<br />
template <typename tip><br />
 class element <br />
{public:<br />
 tip val;<br />
 int initializat; ///  arata daca un element e initializat sau nu<br />
element<tip>* point_front;<br />
element<tip>* point_back;<br />
<br />
};<br />
<br />
<br />
template <typename tip><br />
class vector_eu<br />
{<br />
public:<br />
     	vector_eu();  //constructor  <br />
        int push_bak(tip);//adauga un element in coada vectorului   push_bak(element)<br />
        int insert(tip,int);//adauga un element intr-un  loc specificat insert(element,pozitie)<br />
        int erace(int);//sterge un element dintr-o pozitie specificata  erace(pozitie)<br />
        int erace(int,int);//sterge un nr de caractere incepand cu o pozitie specificata  erace(pozitie,nr_de_elemente)<br />
        int clear(void); //sterge tot vectorul<br />
		int get(int); <br />
<br />
private:<br />
element<tip>* primul_element;<br />
int nr_de_elemente;<br />
element<tip>* ultimul_element;<br />
<br />
element<tip>* get_addres(int);<br />
<br />
<br />
};<br />
<br />
<br />
<br />
<br />
<br />
///implement.cpp<br />
<br />
<br />
#include "stdafx.h"<br />
#include <iostream><br />
#include <string><br />
#include "define element.h"<br />
using namespace std;<br />
<br />
void error(string s)<br />
{<br />
	cout<<s<<endl;<br />
}<br />
<br />
<br />
template <typename tip><br />
inline <br />
vector_eu<tip>::vector_eu()<br />
{<br />
	this->nr_de_elemente=0;<br />
	this->primul_element=new element<tip>;  // creaza primul element  vid<br />
	this->primul_element->initializat=0; <br />
	this->primul_element->point_back=0; // pointerul spre elemntul precedent pt primul elemnt este 0<br />
	this->primul_element->point_front=0;// daca pointerul spre urmatorul element este 0 --> nu exita <br />
	this->ultimul_element=this->primul_element;  <br />
}<br />
<br />
<br />
<br />
template <typename tip><br />
inline<br />
int vector_eu<tip>::push_bak(tip val)<br />
{<br />
	if((this->nr_de_elemente)==0)<br />
	{<br />
		(this->primul_element)->initializat=1;<br />
		(this->primul_element)->val=val;<br />
		++(this->nr_de_elemente);<br />
		return 1;<br />
	}<br />
	else<br />
	{<br />
element<tip> * temp=new element;<br />
temp->initializat=1;<br />
temp->val=val;<br />
temp->point_front=0;<br />
temp->point_back=(this->ultimul_element);<br />
(this->ultimul_element)->point_front=temp;<br />
(this->ultimul_element)=temp;<br />
++(this->nr_de_elemente);<br />
return 1;<br />
	}<br />
}<br />
<br />
<br />
<br />
template <typename tip><br />
inline<br />
element<tip>* vector_eu<tip>::get_addres(int n)   ///   iterator  incepe de la 0<br />
{<br />
	if (this->nr_de_elemente==0)<br />
	{<br />
	  error("nu exista elemente");<br />
	  return 0;<br />
	}<br />
	else<br />
	{  if(n<this->nr_de_elemente)<br />
	    {<br />
		 if(n==0) return this->primul_element;<br />
		 else<br />
		 {<br />
			 if(n<0){ error("iterator<0");return 0;}<br />
			 else<br />
			 {<br />
                element<tip>*temp=this->primul_element;    <br />
			     while(n>0)<br />
				 {<br />
					 temp=temp->point_front;<br />
					 --n;<br />
				 }<br />
				 return temp;<br />
			 }<br />
		 }<br />
	    }<br />
	   else <br />
	   {<br />
        error("iterator>nr_de_elemente");<br />
	   }<br />
	}<br />
	<br />
  <br />
}<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
template <typename tip><br />
inline<br />
int vector_eu<tip>::get(int n)<br />
{<br />
    if(this->nr_de_elemente>n)<br />
	{<br />
		if(n>-1)<br />
		{<br />
	      element<tip> * temp =get_addres(n);<br />
          return temp->val;<br />
		}<br />
		else {<br />
			  error("iterator<0");<br />
		      return 0;<br />
		     }<br />
	}<br />
	else {<br />
		  error("iterator>nr_de_elemente");<br />
	      return 0;<br />
	     }<br />
}<br />
<br />
<br />
	<br />
<br />
template <typename tip><br />
inline<br />
int vector_eu<tip>::clear(void)  <br />
{<br />
	if(this->nr_de_elemente!=0)<br />
	{<br />
		if(this->nr_de_elemente>0)<br />
		{<br />
		element<tip>* temp=this->ultimul_element;<br />
		while(this->nr_de_elemente>1)<br />
		{<br />
			temp=temp->point_back;<br />
			delete (temp->point_front);<br />
			--(this->nr_de_elemente);<br />
		}<br />
		temp->point_front=0;<br />
		temp->initializat=0;<br />
		temp->val=0;<br />
		(this->ultimul_element)=(this->primul_element);<br />
		(this->nr_de_elemente)=0;<br />
        return 1;<br />
		}<br />
		else {error("nr_de_elemente<0");return 0;}<br />
	}<br />
	else<br />
	return 1;<br />
}<br />
<br />
<br />
<br />
template <typename tip><br />
inline<br />
int vector_eu<tip>::erace(int n)    <br />
{<br />
	if(n<this->nr_de_elemente)<br />
	{<br />
		if(n>-1)<br />
		{ <br />
          if(n==0)<br />
		  { <br />
			  if(this->nr_de_elemente==1)<br />
		     {<br />
				 this->clear();<br />
		     }<br />
		      else<br />
		    {<br />
			  element<tip> *temp=this->primul_element;<br />
			  this->primul_element=(this->primul_element)->point_front;<br />
			  (this->primul_element)->point_back=0;<br />
			  delete temp;<br />
			  --(this->nr_de_elemente);<br />
			  return 1;<br />
		    }<br />
		  }<br />
		  else{<br />
			  if((n+1)==this->nr_de_elemente)<br />
			  {<br />
				  element<tip> * temp=this->ultimul_element;<br />
				  ((this->ultimul_element)->point_back)->point_front=0;<br />
				  (this->ultimul_element)=(this->ultimul_element)->point_back;<br />
				  delete temp;<br />
				  --(this->nr_de_elemente);<br />
				  return 1;<br />
			  }<br />
			  else<br />
			      {<br />
		           element<tip> * temp=get_addres(n);<br />
		           (temp->point_back)->point_front=temp->point_front;<br />
	               (temp->point_front)->point_back=temp->point_back;<br />
	               delete temp;<br />
				    --(this->nr_de_elemente);<br />
		           return 1;<br />
			      }<br />
		      }<br />
		}<br />
		else error("iterator<0");<br />
<br />
	}<br />
	else error("iterator>nr_de_elemente");<br />
<br />
	return 0;<br />
}<br />
<br />
<br />
<br />
template <typename tip><br />
inline<br />
int vector_eu<tip>::erace(int n, int r)  ///!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!<br />
{ <br />
  if(n<0)<br />
  {<br />
   error("iterator poz<0");<br />
   return 0;<br />
  }<br />
  else<br />
   if(r<0) <br />
   {<br />
    error("iterator lungime<0");<br />
	return 0;<br />
   }<br />
   else<br />
    if(r==0)<br />
	{<br />
      error("iterator lungime = 0");<br />
	}<br />
	else<br />
	if((n+r)>(this->nr_de_elemente))<br />
	{<br />
      error("depaseste dimensiunea");<br />
	  return 0;<br />
	}<br />
	else<br />
	{<br />
	 if(r==1) <br />
	 {<br />
		 erace(n);<br />
		 return 1;<br />
	 }<br />
	 else<br />
      if(n==0)<br />
	  {<br />
		  if(r==(this->nr_de_elemente))<br />
		  {<br />
			  this->clear();<br />
			  return 1;<br />
		  }<br />
		  else<br />
		  {                      <br />
			element<tip> * temp=(this->primul_element);<br />
			for(int i=0;i<r;++i)<br />
			{<br />
				temp=(temp->point_front);<br />
				delete (temp->point_back); <br />
<br />
			}<br />
			(this->primul_element)=temp;<br />
			(this->primul_element)->point_back=0;<br />
			this->nr_de_elemente-=r;<br />
			return 1;<br />
		  }<br />
	  }<br />
	  else<br />
	  {<br />
		  if((n+r)==(this->nr_de_elemente))<br />
		  {<br />
            element<tip> *temp=get_addres(n);<br />
			(this->ultimul_element)=temp->point_back;<br />
			(this->ultimul_element)->point_front=0;<br />
			for(int i=1;i<r;++i)<br />
			{<br />
				temp=temp->point_front;<br />
				delete temp->point_back;<br />
			}<br />
			delete temp;<br />
            this->nr_de_elemente-=r;<br />
			return 1;<br />
		  }<br />
		  else<br />
		  {<br />
			   element<tip> *temp=get_addres(n);<br />
			   element<tip> *temp_2=(get_addres(n-1));<br />
               element<tip> *temp_3=get_addres(n+r);<br />
			  temp_2->point_front=temp_3;<br />
			  temp_3->point_back=temp_2;<br />
			  for(int i=1;i<r;++i)<br />
			  {<br />
				  temp=temp->point_front;<br />
				  delete temp->point_back;<br />
			  }<br />
			  delete temp;<br />
              this->nr_de_elemente-=r;<br />
			  return 1;<br />
		  }<br />
<br />
	  }<br />
	}<br />
}<br />
<br />
<br />
template <typename tip><br />
inline<br />
int vector_eu<tip>::insert(tip val, int n) <br />
{ <br />
	if((n==0)&&(this->nr_de_elemente==0))<br />
		this->push_bak(val);<br />
	else<br />
	if(n>this->nr_de_elemente)<br />
	{<br />
      error("iterator>nr_de_elemente");<br />
	  return 0;<br />
	}<br />
	else<br />
		if(n<0)<br />
		{<br />
         error("iterator<0");<br />
		 return 0;<br />
		}<br />
		else<br />
			if(n==this->nr_de_elemente)<br />
			{<br />
				this->push_bak(val);<br />
				<br />
				return 1;<br />
			}<br />
			else<br />
				if(n==0)<br />
				{<br />
                 element<tip> * temp=new element<tip>();<br />
				 temp->initializat=1;<br />
				 temp->point_back=0;<br />
				 temp->point_front=this->primul_element;<br />
				 (temp->val)=val;<br />
				 (this->primul_element)->point_back=temp;<br />
				 this->primul_element=temp;<br />
				 ++(this->nr_de_elemente);<br />
				 return 1;<br />
				}<br />
				else<br />
				{<br />
                   element<tip> * temp=get_addres(n-1);<br />
                   element<tip> * new_element= new element<tip>();<br />
<br />
				   new_element->initializat=1;<br />
				   new_element->val=val;<br />
<br />
                   new_element->point_front=temp->point_front;<br />
                   (temp->point_front)->point_back=new_element;<br />
                   temp->point_front=new_element;<br />
                   new_element->point_back=temp;<br />
				   ++(this->nr_de_elemente);<br />
				   return 1;<br />
  <br />
				}<br />
<br />
}<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
<br />
/// list.cpp <br />
<br />
#include "stdafx.h"<br />
#include "define element.h"<br />
#include <iostream><br />
<br />
using namespace std;<br />
<br />
int _tmain(int argc, _TCHAR* argv[])<br />
{<br />
    int a,b,c;<br />
	<br />
	vector_eu<int> e;<br />
	while(1)<br />
	{   <br />
<br />
		cout<<endl<<endl;<br />
		cout<<"1. push_bak"<<endl; <br />
		cout<<"2. insert"<<endl;<br />
		cout<<"3.clear"<<endl;<br />
		cout<<"4.get"<<endl;<br />
		cout<<"5.erace(int)"<<endl;<br />
		cout<<"6.erace(int,int)"<<endl;<br />
     cin>>a;<br />
   if(a==0) break;<br />
	   switch (a)<br />
	   {<br />
	   case 1:<br />
		   cout<<" val= ";<br />
		   cin>>b;<br />
<br />
		   e.push_bak(b);<br />
		   break;<br />
	   case 2:<br />
		   cout<<"val= ";<br />
		   cin>>b;<br />
		   cout<<" poz= ";<br />
		   cin>>c;<br />
		   e.insert(b,c);<br />
		   break;<br />
	   case 3:<br />
		   e.clear();<br />
		   break;<br />
	   case 4:<br />
		   cout<<"poz= ";<br />
		   cin>>b;<br />
		   cout<<"e["<<b<<"]= "<<e.get(b);<br />
           break;<br />
	   case 5:<br />
		   cout<<"poz= ";<br />
           cin>>b;<br />
		   e.erace(b);<br />
		   break;<br />
	   case 6:<br />
		   cout<<"poz= ";<br />
		   cin>>b;<br />
		   cout<<"lungme= ";<br />
		   cin>>c;<br />
		   e.erace(b,c);<br />
		   break;<br />
     <br />
	   }<br />
	<br />
 	}<br />
     	<br />
	std::system("pause");<br />
	return 0;<br />
}<br />
<br />

Re: fatal error LNK1120: 1 unresolved externals in visual c++ 2005

PJ Arends1-Jan-07 7:01

PJ Arends

1-Jan-07 7:01

Because of how templates work all the code for template classes have to be in the *.h header files. You can not split them between header and *.cpp source files.

You may be right
I may be crazy
-- Billy Joel --

Within you lies the power for good, use it!!!

Re: fatal error LNK1120: 1 unresolved externals in visual c++ 2005

toxcct1-Jan-07 8:04

toxcct

1-Jan-07 8:04

posting a kilometer of code (not even respecting the posting guidelines) will not help as i doubt one will take time to analyse your whole code.

you have to do the tracking yourself first, and then ask about a specific point, providing only the piece of code around where the problem comes from...

Don't know where to start ?
Refer the Forums Guidelines and ask a friend

[VisualCalc 3.0][Flags Beginner's Guide]

Re: fatal error LNK1120: 1 unresolved externals in visual c++ 2005

Shouvik Das1-Jan-07 19:28

Shouvik Das

1-Jan-07 19:28

Wat do u expect from us sir,

To rewrite the whole for u Hmmm | :|

Man can acquire accomplishments or he can become an animal, whichever he wants. God makes the animals, man makes himself.

G. C. Lichtenberg (1742-99), German physicist, philosopher.

SH UVIK

Re: fatal error LNK1120: 1 unresolved externals in visual c++ 2005

x-coder20072-Jan-07 7:03

x-coder2007

2-Jan-07 7:03

sorry!!!!!!
i'm not expecting that u rewrite my code. Smile | :)

i'll try to falow toxcct's advice.

preassure meter

ahmad al-omar1-Jan-07 5:31

ahmad al-omar

1-Jan-07 5:31

dear all
iam working on a finger preassure sensing by a touchpad so if you can help me i need to know how can i take yhe preassure from it by visual c++
thanx allot

ahmad al-omar

Refer to the touchpad specifications...

CPallini1-Jan-07 10:39

CPallini

1-Jan-07 10:39

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: preassure meter

Shouvik Das1-Jan-07 17:12

Shouvik Das

1-Jan-07 17:12

If u can then go through the C libraries by SUSE 10.0 wherein they ve such options in there drivers.

If u can simulate the same in VC++

I'm not knowing anymore Smile | :)

Man can acquire accomplishments or he can become an animal, whichever he wants. God makes the animals, man makes himself.

G. C. Lichtenberg (1742-99), German physicist, philosopher.

SH UVIK

prefix vs postfix

swjam1-Jan-07 2:45

swjam

1-Jan-07 2:45

if a class is to overload both the prefix and postfix operators, the sigs usually look like this:

const Counter& operator++ (); // prefix
const Counter operator++ (int); // postfix

my question is why is the prefix returning a reference while the latter returns by value?

thank you.

I am a SysAdmin, I battle my own daemons.

Re: prefix vs postfix

Nemanja Trifunovic1-Jan-07 5:22

Nemanja Trifunovic

1-Jan-07 5:22

See here[^]

Programming Blog
utf8-cpp

IOCP And WSANOBUFS Error

Polity4h1-Jan-07 2:32

1-Jan-07 2:32

Hi,
I'm writing a server application using UDP and the I/O Completion port. I red some articles and i know the things about it.
My application scans a list of servers, requests some information, unpacks the information and stores the information, this is a process in loop. However, after a while i get the 10055 Error or better said WSANOBUFS. Now i red that that means that there cant be made any more locks ( source[^] ) I cant quit seem to find where the error takes place, there might be a sort of loop in locking where the the unlock never hits, but i dont know where that would be then. Is there any way to detect a possible deadlock? or do you know something else that might be wrong? Thanks already

-Koen

Mark Salsbery1-Jan-07 8:52

Mark Salsbery

1-Jan-07 8:52

Where are you getting the WSAENOBUFS error? On a send, receive, connect?

If on a send, have you disabled send buffering for the socket?

Are you using IOCP for sends, recvs, connects? All overlapped operations?

Polity4h1-Jan-07 11:01

1-Jan-07 11:01

int res = WSARecvFrom(m_sSocket, &m_wsaBuf, 1, reinterpret_cast<LPDWORD>(&buflen), &temp, reinterpret_cast<sockaddr*>(&m_objAddress), &sockaddr_len, &m_objOverlapped, NULL);

There i get the error 10055, Sending goes just fine.
Since im using UDP im not connecting. Next to that, i dont use overlapped operations everywhere, i got a mysql class wich just sends a status update every 10 seconds, and a remote manager class wich uses TCP. both the mysql and the rmanager are using normal winsock so without overlapped operations.

<br />
					m_sSocket = socket(AF_INET, SOCK_DGRAM, 0);<br />
					m_objAddress.sin_family = AF_INET;<br />
					m_objLocalAddress.sin_family = AF_INET; <br />
					m_objLocalAddress.sin_addr.s_addr = htonl(INADDR_ANY);<br />
					m_objLocalAddress.sin_port = 0;    <br />
					m_hIOCP = hIOCP;<br />
					if (bind(m_sSocket, reinterpret_cast<sockaddr*>(&m_objLocalAddress),  sizeof(m_objLocalAddress))==SOCKET_ERROR){<br />
						TRACE("Error binding localaddress with the socket, Error: %i\n", WSAGetLastError());<br />
					}<br />
					if (CreateIoCompletionPort(reinterpret_cast<HANDLE>(m_sSocket), hIOCP, reinterpret_cast<DWORD>(const_cast<CVirtualSession*>(this)), 0)==NULL){ //Error binding?<br />
						TRACE("Error binding Session to the main object, Error: %i\n", WSAGetLastError());<br />
						return;<br />
					}

Here i initialize is UDP session, there are like 400 udp virtual sessions continiously sending and recieving data. the first minut it goes all well, but after that, every sessions returns the error 10055 on recieving

)...
Windows Sockets 2.0: Write Scalable Winsock Apps Using Completion Ports[^]
INFO: Design Issues When Using IOCP in a Winsock Server[^]

Mark Salsbery1-Jan-07 15:14

Mark Salsbery

1-Jan-07 15:14

This may or may not be the problem, but based on what I've seen it's the first thing that comes
to mind. I hope this helps a bit...

Unless you always keep enough receive buffers queued in your IOCP then the socket can receive
datagrams faster than you are pulling them out of its buffer.

If the socket is not "connected" (for UDP that just means all datagrams will be ignored except
from the "connected" address) then the socket's recv buffer gets filled with every UDP datagram it
sees on the network. You need to pull them out fast enough to keep enough buffer space for
receives.

One option is to use a connected socket to receive UDP datagrams on. The drawback is you'd need
400 sockets, or one for every session as you described.

Another option is to always have a pool of overlapped WSARecvFrom() calls pushed on the IOCP
stack so there will always be one available when a datagram is received. You could use the
FD_READ notification to help notify a thread that data has been received on the socket and make
sure there's a pending overlapped receive operation ready to accept the data.

Also make sure your IOCP is properly "tuned" with the right amount of threads in the pool to
most efficiently handle all the received datagrams.

These articles may be helpful too (you may have seen them already - I keep them bookmarked for
any IOCP troubles I encounter Smile | :)

Polity4h2-Jan-07 0:27

2-Jan-07 0:27

thanks, i havent solved the problem yet however i didnt try your possible solutions so Smile | :)

I'll working on it as soon as my job ends. i'll tell you how it goes as soon as there's some result. thanks again

Polity4h2-Jan-07 6:25

2-Jan-07 6:25

If the socket is not "connected" (for UDP that just means all datagrams will be ignored except
from the "connected" address) then the socket's recv buffer gets filled with every UDP datagram it
sees on the network. You need to pull them out fast enough to keep enough buffer space for
receives.

I tried some solutions but i cant seem to get them working. Its probably my lack of experiance but well,
The fundamental code:

<br />
				while (1){ <br />
					BOOL bIORet = GetQueuedCompletionStatus ( // Get a completed IO request<br />
						   pThis->m_hIOCompiltionPort,<br />
						   &dwIoSize,<br />
						   reinterpret_cast<LPDWORD>(pThis),<br />
						   &ptrOverlapped, INFINITE);<br />
					if (!bIORet){<br />
						TRACE("Winsock error code: %i\n", GetLastError());<br />
						Gameye::Library::Thread::CMPThread::Sleep(0);<br />
					}<br />
					else{<br />
						ptrSession = static_cast<CVirtualSession*>(ptrOverlapped->Pointer);<br />
						CAbstractServerClass* ptrGameClass = (*pThis->m_ptrGameManager)[ptrSession->getNDServer()->GameID];<br />
						if (ptrGameClass == NULL){<br />
							TRACE("Game is unknown, probably removed\n");<br />
						}<br />
						else{<br />
							objToolset.Session = ptrSession;<br />
							switch(ptrSession->getTask()){<br />
								case RequestSend: //Request to send a packet<br />
									if (WSASendTo(sSocket, <br />
										ptrSession->getWSABuffer(),<br />
										1,<br />
										reinterpret_cast<LPDWORD>(&ptrSession->getWSABuffer()->len),<br />
										0,reinterpret_cast<sockaddr*>(ptrSession->getAddress()),<br />
										sizeof(sockaddr_in),<br />
										ptrSession->getOverlapped(), NULL) == -1)<br />
									{<br />
										int iErrorCode = WSAGetLastError();<br />
										if (iErrorCode != 997){ //997 =  Data is already recieved<br />
											TRACE("Sending failed because: %i\n", WSAGetLastError());<br />
											break;<br />
										}<br />
									}<br />
									ptrSession->setStatus(AfterSend);<br />
									break;<br />
								case RequestRecieve: //Request to recieve a packet<br />
									if (WSARecvFrom(sSocket, <br />
										ptrSession->getWSABuffer(),<br />
										1,<br />
										reinterpret_cast<LPDWORD>(&ptrSession->getWSABuffer()->len),<br />
										&iTemp,reinterpret_cast<sockaddr*>(ptrSession->getAddress()),<br />
										&iSockAddrSize,<br />
										ptrSession->getOverlapped(), NULL) == -1)<br />
									{<br />
										int iErrorCode = WSAGetLastError();<br />
										if (iErrorCode != 997){ //997 =  Data is already recieved<br />
											TRACE("Recieving failed because: %i\n", WSAGetLastError());<br />
											ptrSession->setStatus(AfterRecieve);<br />
										}<br />
									}<br />
									ptrSession->setStatus(AfterRecieve);<br />
									break;			<br />
								case AfterSend: //Call sending event<br />
									ptrSession->incSendBytes(dwIoSize);<br />
									ptrGameClass->RetrieveServerInfo(ptrSession->getNDServer(), &objToolset);<br />
									break;<br />
								case AfterRecieve: //Call receiving event<br />
									ptrSession->incRecvBytes(dwIoSize);<br />
									if (ptrGameClass->UnpackServerInfo(ptrSession->getNDServer(), &objToolset) == 0){//Session is finished!<br />
										ptrSession->Finish();<br />
									}<br />
									break;<br />
								case Finishing:<br />
									pThis->m_objSql.AddGame(ptrSession->getNDServer());<br />
									break;<br />
								default:<br />
									break; //Who knows?<br />
							}<br />
						}<br />
					}

Most calls should be clear. the events i call are simpel functions, they should return in a inch of a sec, next to that, i can have 10 workerthreads running and still i get the same error. some sessions come out alive but most of them just gives the known error on recieve. You also see that after every send, a call to WSARecvFrom is been made. its not directly but again with the inch of a second.

Also, with 10 sessions, 2/3 sessions returns the error on recieve the rest just works fine. with 400 sessions, a few return with the error and a few dont. that indicates that the recieve buffer aint full right?

Mark Salsbery2-Jan-07 7:07

Mark Salsbery

2-Jan-07 7:07

You get a completion packet indicating "RequestRecieve" and in response you call WSARecvFrom()
before calling ptrSession->setStatus(AfterRecieve);

Chances are pretty good that another thread has already processed the completion of the
WSARecvFrom() call before you can even check the error code! Smile | :)

So, you'll get ANOTHER RequestRecieve before you have a chance to set the session status to
AfterRecieve.

Make sense?

In other words, you probably want to call ptrSession->setStatus(AfterRecieve) BEFORE you call
WSARecvFrom().

Also, use WSA_IO_PENDING instead of 997 so I can read your code haha Smile | :)

I don't have all the WSAE
codes memorized yet Poke tongue | ;-P

Polity4h2-Jan-07 7:17