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How are you reading the incoming data exactly ? You need to supply the number of bytes you want to read when you call the recv function. So, in order to read only one message, read only the size of the message. If it is variable, then the best way to do it would be to send the size of the message before the message. You read the size (1, 2 or 4 bytes, depending of the maximum size of your packet) and then you read exactly that number of bytes to get your packet.
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Is Single Thread is dealing with every thing or there are multiple client thread!
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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Are you using a synchronous or an asynchronous socket?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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SyamlalS wrote: sending and receival are not synchronized.
If you need them synchronized then you have to develop a protocol and processor for the protocol, you don't get that for free with TCP. All TCP does is guarantee the packet order. If your statement accurately describes your problem you could use a finite state machine.
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hello to all,
right now i am doing a project in which i have created two new view classes, other than regular view class which gets created at the time of creating ur application.Lets say those two view classes are "CA1View" and "CB1View" and after that i followed a general method for print previewing which we normally follows i.e created a view class "CReportPreview" which has a base class as "CPreviewView" and wrote methods in it which contains the code of previewing, when i access A1View then i destroy B1View and viceversa, now to get an idea where i am getting error plz refer following code,
In "CA1View" class,
CPrintPreviewState::CPrintPreviewState()
{
// set defaults
nIDMainPane = AFX_IDW_PANE_FIRST;
//nIDMainPane = 1 ;
dwStates = AFX_CONTROLBAR_MASK(AFX_IDW_STATUS_BAR);
// status bar visible if available
hMenu = NULL;
pViewActiveOld = NULL;
//hAccelTable = NULL;
}
void CA1View::OnPrintPreview()
{
CPrintPreviewState* pState = new CPrintPreviewState;
// get default print info
if(!DoPrintPreview(AFX_IDD_PREVIEW_TOOLBAR, this,
RUNTIME_CLASS(CReportPreview), pState))
{
// In derived classes, reverse special window handling here for
// Preview failure case.
TRACE0("Error: DoPrintPreview failed.\n");
AfxMessageBox(AFX_IDP_COMMAND_FAILURE);
delete pState; // Preview failed to initialize, delete State
}
// CView::OnFilePrintPreview();
}
--------------------------------------------------------------------------
In "CB1View" class,
CPrintPreviewState::CPrintPreviewState()
{
// set defaults
nIDMainPane = AFX_IDW_PANE_FIRST;
//nIDMainPane = 1 ;
dwStates = AFX_CONTROLBAR_MASK(AFX_IDW_STATUS_BAR);
// status bar visible if available
hMenu = NULL;
pViewActiveOld = NULL;
//hAccelTable = NULL;
}
void CB1View::OnPrintPreview()
{
CPrintPreviewState* pState = new CPrintPreviewState;
// get default print info
if(!DoPrintPreview(AFX_IDD_PREVIEW_TOOLBAR, this,
RUNTIME_CLASS(CReportPreview), pState))
{
// In derived classes, reverse special window handling here for
// Preview failure case.
TRACE0("Error: DoPrintPreview failed.\n");
AfxMessageBox(AFX_IDP_COMMAND_FAILURE);
delete pState; // Preview failed to initialize, delete State
}
// CView::OnFilePrintPreview();
}
but when i rebuild the code i get following linker errors,
1)
B1View.obj : error LNK2005: "public: __thiscall CPrintPreviewState::CPrintPreviewState(void)" (??0CPrintPreviewState@@QAE@XZ) already defined in A1View.obj
2)
B1View.obj : error LNK2005: "public: int __thiscall CView::DoPrintPreview(unsigned int,class CView *,struct CRuntimeClass *,struct CPrintPreviewState *)" (?DoPrintPreview@CView@@QAEHIPAV1@PAUCRuntimeClass@@PAUCPrintPreviewState@@@Z
) already defined in A1View.obj
3)
Debug/Program.exe : fatal error LNK1169: one or more multiply defined symbols found
Error executing link.exe.
what to do? can any body help me plz its urgent plz
Thanks and Regards,
Anay
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Mmm, you are giving the same name to functions in different classes, because of that comes the linker error.
If you need to know which class is calling the preview... why don't you code the functions in just one place and pass a parameter to specify who is calling the function? With this, the error you are having should not come anymore.
By the way... Are you in Win32 - MFC?? Because you already have printing support by default there.
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
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Nelek wrote: By the way... Are you in Win32 - MFC??
Did you miss the use of TRACE0, AfxMessageBox, CView, and RUNTIME_CLASS? 
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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 mmmm,  maybe yes... 
Greetings.
--------
M.D.V.
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
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Nelek wrote: mmmm, maybe yes...
he he he what about OutputDebugString 
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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You have a default constructor for CPrintPreviewState in two .cpp files. Why?
"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman
"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne
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Hello Friends,
Is there any way we can make the main thread sleep from within the another user created theread.
I am using the code like below
void fun(void)
{
...
...
if(Some Condition)
{
CreateThread(0, 0, ( LPTHREAD_START_ROUTINE ) ThreadProc, 0, 0, 0 );
DialogBox(...);
}
if (Some Other condition)
{
}
}
void ThreadProc(void)
{
fun();
}
-- modified at 6:01 Wednesday 17th October, 2007
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GauranG33 wrote: from within the another user created theread
WTF are you trying to say here ?! 
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Now I hav modified the Question. and Put some Example code.
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toxcct wrote: WTF are you trying to say here ?!
Don't Know [ ]
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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that depends on the design and implementation of both of your threads.
and also, the context, where the sleep is required matters.
can you share them with us?
----------------------------------------------------------
Suggestion to the members:
prefix your main thread subject with [SOLVED] if it is solved.
chandu.
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it seems that, you are landing in some sort of recursion here.
BTW,
i understood that, you want to do some application, which keeps a dialog displayed until you stop it.
am i right?
if so, then i can guide you better.
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actully I want to display the Dialog Box Continously untill some events happen and also want that my application run in the background and so i am using the thread.
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thats what i meant.
i have one active X control made by me to achieve your task.
if you want, i can share it with u.
you have to use it as follows.
your main thread
{
control.start();
//your code which u call as ur background code here
........
........
//control.stop();
}
here, from ur start to stop function, the dialog will be displayed.
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Have the main thread create and display a modeless dialog box. This way the box is displayed but the main thread can keep working.
Judy
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GauranG33 wrote: actully I want to display the Dialog Box Continously untill some events happen and also want that my application run in the background and so i am using the thread.
call a model dialog box.. it block the main thread, and you thread will continue to run in background
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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yes it displays the modeless dialog
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That wasn't what I meant. I was addressing your statement from the initial post:
CreateThread(0, 0, ( LPTHREAD_START_ROUTINE ) ThreadProc, 0, 0, 0 );
//I want to show some dialog continuously and also the same function (fun) to be running.
//And So I am using the Thread to call the Function (fun() )
DialogBox(...); //
To accomplish this, consider displaying a modeless dialog box and just directly calling the function. This may not be appropriate for your program - it depends on what the function actually does, but you didn't provide enough information.
Judy
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do you exactly want some dialog, that displays something like,
"Some task is going on Please Wait......".
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then display model dialog.. is there is any problem..
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
|
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Why you want to make Main Thread Sleep..? this is not good design. as in Sleep State main thread will process nothing. you should change you design to make MianThread do nothing instead of making it sleep.
GauranG33 wrote: void ThreadProc(void){ fun();}
this will make your worker thread sleep not main thread. as function call is from worker thread not main thread
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and You
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