int Simulator::Read(unsigned int offset, unsigned int size, void* destination)
{
//Add read call to queue.
DWORD result;
FSUIPC_Read(static_cast<DWORD>(offset), static_cast<DWORD>(size), destination, &result);
return static_cast<int>(result);
}
JNIEXPORT void JNICALL Java_com_flightSim_wrapper_FSWrapper_ReadData(JNIEnv * env, jclass, jint aOffset, jint aCount, jbyteArray aData)
{
jbyte* data = env->GetByteArrayElements(aData, 0);
FSUIPC_Read(aOffset, aCount, (void*)data, &iResult);
FSUIPC_Process(&iResult);
env->ReleaseByteArrayElements(aData, data, 0);
}
bool Fsuipc::read( WORD id, unsigned size, void *data ) {
DWORD res;
return FSUIPC_Read( id, size, data, &res )==TRUE;
}
// Start the client
// return: TRUE if successful, FALSE otherwise
BOOL FSUIPC_Open(DWORD dwFSReq, DWORD *pdwResult)
{ char szName[MAX_PATH];
static int nTry = 0;
BOOL fWideFS = FALSE;
int i = 0;
// abort if already started
if (m_pView)
{ *pdwResult = FSUIPC_ERR_OPEN;
return FALSE;
}
// Clear version information, so know when connected
FSUIPC_Version = FSUIPC_FS_Version = 0;
// Connect via FSUIPC, which is known to be FSUIPC's own
// and isn't subject to user modificiation
m_hWnd = FindWindowEx(NULL, NULL, "UIPCMAIN", NULL);
if (!m_hWnd)
{ // If there's no UIPCMAIN, we may be using WideClient
// which only simulates FS98
m_hWnd = FindWindowEx(NULL, NULL, "FS98MAIN", NULL);
fWideFS = TRUE;
if (!m_hWnd)
{ *pdwResult = FSUIPC_ERR_NOFS;
return FALSE;
}
}
// register the window message
m_msg = RegisterWindowMessage(FS6IPC_MSGNAME1);
if (m_msg == 0)
{ *pdwResult = FSUIPC_ERR_REGMSG;
return FALSE;
}
// create the name of our file-mapping object
nTry++; // Ensures a unique string is used in case user closes and reopens
wsprintf(szName, FS6IPC_MSGNAME1 ":%X:%X", GetCurrentProcessId(), nTry);
// stuff the name into a global atom
m_atom = GlobalAddAtom(szName);
if (m_atom == 0)
{ *pdwResult = FSUIPC_ERR_ATOM;
FSUIPC_Close();
return FALSE;
}
// create the file-mapping object
m_hMap = CreateFileMapping(
(HANDLE)0xFFFFFFFF, // use system paging file
NULL, // security
PAGE_READWRITE, // protection
0, MAX_SIZE+256, // size
szName); // name
if ((m_hMap == 0) || (GetLastError() == ERROR_ALREADY_EXISTS))
{ *pdwResult = FSUIPC_ERR_MAP;
FSUIPC_Close();
return FALSE;
}
// get a view of the file-mapping object
m_pView = (BYTE*)MapViewOfFile(m_hMap, FILE_MAP_WRITE, 0, 0, 0);
if (m_pView == NULL)
{ *pdwResult = FSUIPC_ERR_VIEW;
FSUIPC_Close();
return FALSE;
}
// Okay, now determine FSUIPC version AND FS type
m_pNext = m_pView;
// Try up to 5 times with a 100mSec rest between each
// Note that WideClient returns zeroes initially, whilst waiting
// for the Server to get the data
while ((i++ < 5) && ((FSUIPC_Version == 0) || (FSUIPC_FS_Version == 0)))
{ // Read FSUIPC version
if (!FSUIPC_Read(0x3304, 4, &FSUIPC_Version, pdwResult))
{ FSUIPC_Close();
return FALSE;
}
// and FS version and validity check pattern
if (!FSUIPC_Read(0x3308, 4, &FSUIPC_FS_Version, pdwResult))
{ FSUIPC_Close();
return FALSE;
}
// Write our Library version number to a special read-only offset
// This is to assist diagnosis from FSUIPC logging
// But only do this on first try
if ((i < 2) && !FSUIPC_Write(0x330a, 2, &FSUIPC_Lib_Version, pdwResult))
{ FSUIPC_Close();
return FALSE;
}
// Actually send the requests and get the responses ("process")
if (!FSUIPC_Process(pdwResult))
{ FSUIPC_Close();
return FALSE;
}
// Maybe running on WideClient, and need another try
Sleep(100); // Give it a chance
}
// Only allow running on FSUIPC 1.998e or later
// with correct check pattern 0xFADE
if ((FSUIPC_Version < 0x19980005) || ((FSUIPC_FS_Version & 0xFFFF0000L) != 0xFADE0000))
{ *pdwResult = fWideFS ? FSUIPC_ERR_RUNNING : FSUIPC_ERR_VERSION;
FSUIPC_Close();
return FALSE;
}
FSUIPC_FS_Version &= 0xffff; // Isolates the FS version number
if (dwFSReq && (dwFSReq != FSUIPC_FS_Version)) // Optional user specific FS request
{ *pdwResult = FSUIPC_ERR_WRONGFS;
FSUIPC_Close();
return FALSE;
}
*pdwResult = FSUIPC_ERR_OK;
return TRUE;
}
