/*----------------------------------------------------------------------------
* RTTTL_CheckFileType()
*----------------------------------------------------------------------------
* Purpose:
* Check the file type to see if we can parse it
*
* Inputs:
* pEASData - pointer to overall EAS data structure
* handle - pointer to file handle
*
* Outputs:
*
*
* Side Effects:
*
*----------------------------------------------------------------------------
*/
static EAS_RESULT RTTTL_CheckFileType (S_EAS_DATA *pEASData, EAS_FILE_HANDLE fileHandle, EAS_VOID_PTR *ppHandle, EAS_I32 offset)
{
S_RTTTL_DATA data;
S_RTTTL_DATA *pData;
/* see if we can parse the header */
data.fileHandle = fileHandle;
data.fileOffset = offset;
*ppHandle= NULL;
if (RTTTL_ParseHeader (pEASData, &data, EAS_FALSE) == EAS_SUCCESS)
{
/* check for static memory allocation */
if (pEASData->staticMemoryModel)
pData = EAS_CMEnumData(EAS_CM_RTTTL_DATA);
else
pData = EAS_HWMalloc(pEASData->hwInstData, sizeof(S_RTTTL_DATA));
if (!pData)
return EAS_ERROR_MALLOC_FAILED;
EAS_HWMemSet(pData, 0, sizeof(S_RTTTL_DATA));
/* return a pointer to the instance data */
pData->fileHandle = fileHandle;
pData->fileOffset = offset;
pData->state = EAS_STATE_OPEN;
*ppHandle = pData;
}
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* EAS_HWInit
*
* Initialize host wrapper interface
*
*----------------------------------------------------------------------------
*/
EAS_RESULT EAS_HWInit (EAS_HW_DATA_HANDLE *pHWInstData)
{
#if defined(_DEBUG) && !defined(MSC)
EnableHeapDebug();
#endif
#ifdef BUFFERED_FILE_ACCESS
EAS_ReportX(_EAS_SEVERITY_INFO, "EAS_HWInit: Buffered file access\n");
#else
EAS_ReportX(_EAS_SEVERITY_INFO, "EAS_HWInit: Memory mapped file access\n");
#endif
/* simulate failure */
if (errorConditions[eInitError])
return EAS_FAILURE;
/* need to track file opens for duplicate handles */
*pHWInstData = malloc(sizeof(EAS_HW_INST_DATA));
if (!(*pHWInstData))
return EAS_ERROR_MALLOC_FAILED;
EAS_HWMemSet(*pHWInstData, 0, sizeof(EAS_HW_INST_DATA));
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* EAS_HWInit
*
* Initialize host wrapper interface
*
*----------------------------------------------------------------------------
*/
EAS_RESULT EAS_HWInit (EAS_HW_DATA_HANDLE *pHWInstData)
{
/* need to track file opens for duplicate handles */
#ifndef _STATIC_MEMORY
*pHWInstData = malloc(sizeof(EAS_HW_INST_DATA));
if (!(*pHWInstData))
return EAS_ERROR_MALLOC_FAILED;
#else
*pHWInstData = &fileData;
#endif
EAS_HWMemSet(*pHWInstData, 0, sizeof(EAS_HW_INST_DATA));
return EAS_SUCCESS;
}
/*----------------------------------------------------------------------------
* EAS_HWInit
*
* Initialize host wrapper interface
*
*----------------------------------------------------------------------------
*/
EAS_RESULT EAS_HWInit (EAS_HW_DATA_HANDLE *pHWInstData)
{
EAS_HW_FILE *file;
int i;
/* need to track file opens for duplicate handles */
*pHWInstData = malloc(sizeof(EAS_HW_INST_DATA));
if (!(*pHWInstData))
return EAS_ERROR_MALLOC_FAILED;
EAS_HWMemSet(*pHWInstData, 0, sizeof(EAS_HW_INST_DATA));
file = (*pHWInstData)->files;
for (i = 0; i < EAS_MAX_FILE_HANDLES; i++)
{
file->fd = -1;
file++;
}
return EAS_SUCCESS;
}