C / C++ / MFC

hanlei0000000009 wrote:

I need my program sleep 1 microsecond, but Sleep() can not do this.

hanlei0000000009 wrote:

I need my program sleep 1 microsecond...

Rajesh R Subramanian wrote:

And to answer you, NO

harold aptroot wrote:

But they have a resolution which is considerably higher than the standard timer so they come closer to the goal. Sure they don't reach it, but being closer is better than .. well.. not being closer

harold aptroot wrote:

At least he will be better off knowing that they exist.

harold aptroot wrote:

And yes I gave you a 3, not because you disagree but because You are the one who is partically wrong. It would be closer to his goal.

Rajesh R Subramanian wrote:

I'm not wasting another minute on you.

Rajesh R Subramanian wrote:

He's trying to achieve something that would require an RTOS

includeh10 wrote:

anti-virus software blocked mail

#define CHECK(iStatus) \
if(iStatus==SOCKET_ERROR) return 0;\
if(iStatus==0) return 0

#define EOL  "\r\n"

BOOL TestSend()
{
	const char*pszServer="www.mycompany";
	const char*pszSmtpEmail	="myemail@hotmail.com";
	const char*pszSenderEmail	="myemail@hotmail.com";
	const char*pszSubject	="my subject";
	const char*pszReceiver	="myemail@hotmail.com";
	const char*pszBody		="the body";
	const char*pszSenderName	="myemail@hotmail.com";

	char	sz[1024];
	char	wa[1024];
	char	szBuffer[4096];
	char	waTime[270];

	int iRet;
	//-------------------------
	HOSTENT* pHost=::gethostbyname(pszServer);
	if(pHost==0) 	return 0;
	SOCKET hSock=socket(PF_INET,SOCK_STREAM,0); 
	if(hSock==INVALID_SOCKET) return 0;

	SERVENT*pServer=::getservbyname("mail",0);

	const int iPort=pServer?pServer->s_port:IPPORT_SMTP;

	SOCKADDR_IN    sockAddr;
	sockAddr.sin_family	=AF_INET;
	sockAddr.sin_port	=iPort;
	sockAddr.sin_addr	=*((LPIN_ADDR)*pHost->h_addr_list);

	if(::connect(hSock,(PSOCKADDR) &sockAddr,sizeof(sockAddr)))
	{
		return 0;
	}
	iRet=::recv(hSock,szBuffer,sizeof(szBuffer),0);
	// Receive initial response from SMTP server.
	CHECK(iRet);

	// Send HELO 
	wsprintf(sz,"HELO %s%s","microsoft [111.122.1.12]",EOL);
	CHECK(::send(hSock,sz,strlen(sz),0));
	CHECK(::recv(hSock,szBuffer,sizeof(szBuffer),0));

	// Send MAIL FROM:
	wsprintf(sz,"MAIL FROM: <%s>%s",pszSmtpEmail,EOL);
	CHECK(::send(hSock,sz,strlen(sz),0));
	CHECK(::recv(hSock,szBuffer,sizeof(szBuffer),0));

	// Send RCPT TO: 
	wsprintf(sz,"RCPT To: <%s>%s",pszReceiver,EOL);
	CHECK(::send(hSock,sz,strlen(sz),0));
	CHECK(::recv(hSock,szBuffer,sizeof(szBuffer),0));

	// Send DATA.
	wsprintf(sz,"DATA%s",EOL);
	CHECK(::send(hSock,sz,strlen(sz),0));
	CHECK(::recv(hSock,szBuffer,sizeof(szBuffer),0));

	///szHead
	strcpy(waTime,T("Date: "));
	::GetDateFormat(0x409,0,0,T("ddd,dd MMM yyyy"),wa,200);
	strcat(waTime,wa);
	strcat(waTime,T(" "));
	::GetTimeFormat(0x409,0,0,T("HH:mm:ss"),wa,200);
	strcat(waTime,wa);

	char szHead[350];

	strcpy(szHead,"From: ");
	strcat(szHead,pszSenderName );
	strcat(szHead,"<");
	strcat(szHead,pszSenderEmail);
	strcat(szHead,">");
	strcat(szHead,"\r\n");
	strcat(szHead,"To: ");
	strcat(szHead,pszReceiver);
	strcat(szHead,"\r\n");
	strcat(szHead,"Subject: ");
	strcat(szHead,pszSubject );
	strcat(szHead,"\r\n");
	strcat(szHead,waTime);
	strcat(szHead,"\r\n");
	strcat(szHead,"X-Mailer: Outlook Express 1.00\r\nMIME-Version: 1.0\r\nContent-Type: text/plain;\r\n\tcharset=\"iso-8859-1\"\r\nContent-Transfer-Encoding: 7bit\r\n\r\n");

	wsprintf(sz,szHead);
	CHECK(::send(hSock,sz,strlen(sz),0));

	char szBody[4800];
	strcpy(szBody,pszBody );

	strcat(szBody,"\r\n\r\n");
	CHECK(::send(hSock,szBody,strlen(szBody),0));

	// Send blank line and a period.
	wsprintf(sz,"%s.%s",EOL,EOL);
	CHECK(::send(hSock,sz,strlen(sz),0));
	CHECK(::recv(hSock,szBuffer,sizeof(szBuffer),0));

	// Send QUIT.
	wsprintf(sz,"QUIT%s",EOL);
	CHECK(::send(hSock,sz,strlen(sz),0));

	//****** iRet==0, this may be error? 
	iRet=::recv(hSock,szBuffer,sizeof(szBuffer),0);

	// Close server socket and prepare to exit.
	closesocket(hSock );
	WSACleanup();
	return 1;
}

#define CHECK(iStatus) \
if(iStatus==SOCKET_ERROR) return 0;\
if(iStatus==0) return 0

if(::send(hSock,sz,strlen(sz),0)==SOCKET_ERROR) return 0;
if(::send(hSock,sz,strlen(sz),0)==0) return 0

#define CHECK(iStatus) \
{	\
	int result = iStatus;	\
	if(result==SOCKET_ERROR) return 0;	\
	if(result==0) return 0;	\
}

::GetDateFormat(0x409,0,0,T("dd MMM yyyy"),wa,200);