C / C++ / MFC

#include <iostream.h><br />
#include <windows.h><br />
#include <stdio.h><br />
#include <time.h><br />
<br />
#define BUFFER_LEN 200 // # of bytes to read/write<br />
<br />
// The producer process reads information from the file name<br />
//   in_test then writes it to the file named out_test.<br />
<br />
void main(int argc, char *argv[]) <br />
{<br />
	clock_t start,finish;<br />
	double duration;<br />
	   <br />
	char buffer[BUFFER_LEN + 1];<br />
<br />
// CreateFile parameters<br />
	DWORD dwShareMode = 0; // share mode<br />
	LPSECURITY_ATTRIBUTES lpFileSecurityAttributes = NULL; // <br />
	HANDLE hTemplateFile = NULL; // <br />
<br />
<br />
	HANDLE sourceFile; // Source of pipeline<br />
	DWORD numberOfBytesRead;<br />
	LPOVERLAPPED lpOverlapped = NULL; // Not used here<br />
<br />
// WriteFile <br />
	HANDLE sinkFile; <br />
	DWORD numberOfBytesWritten;<br />
<br />
// Open source file<br />
	start=clock(); //Start Timing the Process<br />
<br />
	sourceFile = CreateFile (<br />
	"C://Constitution.txt",<br />
	GENERIC_READ,<br />
	dwShareMode,<br />
	lpFileSecurityAttributes,<br />
	OPEN_ALWAYS,<br />
	FILE_ATTRIBUTE_READONLY,<br />
	hTemplateFile<br />
	);<br />
<br />
if(sourceFile == INVALID_HANDLE_VALUE) <br />
{<br />
	fprintf(stderr, "File Open operation failed\n");<br />
	ExitProcess(1);<br />
}<br />
<br />
// Open the sink file<br />
sinkFile = CreateFile (<br />
	"C://NewVersionConstitution.txt",<br />
	GENERIC_WRITE,<br />
	dwShareMode,<br />
	lpFileSecurityAttributes,<br />
	CREATE_ALWAYS,<br />
	FILE_ATTRIBUTE_NORMAL,<br />
	hTemplateFile<br />
	);<br />
<br />
if(sinkFile == INVALID_HANDLE_VALUE) <br />
{<br />
	fprintf(stderr, "File Open operation failed\n");<br />
	ExitProcess(1);<br />
}<br />
<br />
// Main loop to copy the file<br />
	while<br />
	(<br />
		ReadFile(<br />
			sourceFile, buffer,<br />
			BUFFER_LEN, &numberOfBytesRead,<br />
			lpOverlapped<br />
			)<br />
			&&<br />
			numberOfBytesRead > 0<br />
			) <br />
			{<br />
				WriteFile(sinkFile, buffer, BUFFER_LEN,<br />
				&numberOfBytesWritten, lpOverlapped);<br />
			 }<br />
  //while (BUFFER_LEN == 200);<br />
	// Terminating. Close the sink and source files<br />
	   <br />
	CloseHandle(sourceFile);<br />
	CloseHandle(sinkFile);<br />
<br />
	finish=clock();  //End timing of process<br />
	//duration=(double)(finish-start) / 10000;<br />
	duration=(double)(finish-start) / CLOCKS_PER_SEC;<br />
	printf("The process took %d ",duration);<br />
	printf("seconds to complete\n");<br />
 <br />
	ExitProcess(0);<br />
<br />
}