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142 lines
3.8 KiB
142 lines
3.8 KiB
#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include <windows.h>
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DWORD Size;
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LPSTR WriteData = "Hello World\n";
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VOID
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ClientThread(
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LPVOID ThreadParameter
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)
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{
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DWORD n;
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HANDLE C1;
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LPSTR l;
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printf("Create client...\n");
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C1 = CreateFile("\\\\.\\Pipe\\cw\\testpipe",
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GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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NULL, // Security Attributes
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
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NULL
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);
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if ( C1 == INVALID_HANDLE_VALUE ) {
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DWORD Status;
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printf("CreateFile returned Error %lx\n", Status = GetLastError() );
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}
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printf("Client writing...\n");
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assert( TRUE == WriteFile(C1,WriteData,Size, &n, NULL) );
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assert( n==Size );
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printf("Client done Writing...\n");
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// Get WriteData back from the server
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l = LocalAlloc(LMEM_ZEROINIT,Size);
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assert(l);
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printf("Client reading\n");
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assert( TRUE == ReadFile(C1,l,Size, &n, NULL));
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printf("Client reading Done %s\n",l);
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Sleep(10000);
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printf("Client done Sleeping...\n");
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}
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int
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main(
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int argc,
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char *argv[],
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char *envp[]
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)
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{
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DWORD n;
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LPSTR l;
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HANDLE Thread;
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HANDLE S1,S2,S3; // Server handles
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DWORD ThreadId;
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DWORD Dummy;
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OVERLAPPED S1Overlapped;
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S1 = CreateNamedPipe("\\\\.\\Pipe\\cw\\testpipe",
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PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
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PIPE_WAIT | PIPE_READMODE_MESSAGE| PIPE_TYPE_MESSAGE,
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2,
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1024,
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1024,
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0,
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NULL);
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assert(S1 != INVALID_HANDLE_VALUE);
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S2 = CreateNamedPipe("\\\\.\\Pipe\\cw\\testpipe",
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PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
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PIPE_WAIT | PIPE_READMODE_MESSAGE| PIPE_TYPE_MESSAGE,
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992, //IGNORED
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0, //IGNORED
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0, //IGNORED
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0, //IGNORED
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NULL);
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assert(S2 != INVALID_HANDLE_VALUE);
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S3 = CreateNamedPipe("\\\\.\\Pipe\\cw\\testpipe",
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PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
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PIPE_WAIT | PIPE_READMODE_MESSAGE| PIPE_TYPE_MESSAGE,
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992,
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0,
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0,
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0,
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NULL);
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assert( S3 == INVALID_HANDLE_VALUE ); //Should fail - Used all instances
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S1Overlapped.hEvent = NULL;
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assert( FALSE == ConnectNamedPipe( S1, &S1Overlapped ));
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assert( ERROR_IO_PENDING == GetLastError());
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assert( FALSE == GetOverlappedResult( S1, &S1Overlapped, &Dummy, FALSE ));
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assert( ERROR_IO_INCOMPLETE == GetLastError());
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Size = strlen(WriteData)+1;
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l = LocalAlloc(LMEM_ZEROINIT,Size);
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assert(l);
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Thread = CreateThread(NULL,0L,ClientThread,(LPVOID)99,0,&ThreadId);
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assert(Thread);
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printf("Waiting for connection\n");
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assert( TRUE == GetOverlappedResult( S1, &S1Overlapped, &Dummy, TRUE ));
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printf("Connected, Server now Reading\n");
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if ( FALSE == ReadFile(S1,l,Size, &n, &S1Overlapped) ) {
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DWORD Status;
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printf("Server ReadFile returned Error %lx\n", Status = GetLastError() );
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if ( Status == ERROR_IO_PENDING ) {
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printf("Server got ERROR_IO_PENDING ok,Waiting for data\n");
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assert( TRUE == GetOverlappedResult( S1, &S1Overlapped, &Dummy, TRUE ));
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}
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}
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printf("Server Reading Done %s\n",l);
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printf("Server Writing\n");
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if ( FALSE == WriteFile(S1,l,Size, &n, &S1Overlapped) ) {
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DWORD Status;
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printf("Server WriteFile returned Error %lx\n", Status = GetLastError() );
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if ( Status == ERROR_IO_PENDING ) {
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printf("Server got ERROR_IO_PENDING ok,Waiting for transfer complete\n");
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assert( TRUE == GetOverlappedResult( S1, &S1Overlapped, &Dummy, TRUE ));
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}
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}
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printf("Server Writing Done %s\n",l);
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}
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