/******************************************************************************
*
* NSSDC/CDF CDF library miscellaneous functions, part 1.
*
* Version 1.3e, 18-Nov-97, Hughes STX.
*
* Modification history:
*
* V1.0 19-Dec-94, J Love Original version.
* V1.0a 29-Dec-94, J Love WriteBuffer: increment buffer pointer in the
* case where the memory allocation failed.
* V1.1 13-Jan-95, J Love Encode/decode changes. More cache-residency.
* Allow all possible extensions on all machines.
* V1.1a 19-Jan-95, J Love IRIX 6.x (64-bit).
* V1.1b 24-Feb-95, J Love Solaris 2.3 IDL i/f.
* V1.2 21-Mar-95, J Love POSIX.
* V1.2a 18-Apr-95, J Love More POSIX. MEMLOG_.
* V1.2b 19-Apr-95, J Love Memory functions moved to `cdfmem.c'.
* V1.2c 7-Sep-95, J Love Corrected status codes being returned. Try
* progressively smaller temporary buffers in
* `WriteVarElems'.
* V1.3 10-Sep-96, J Love CDF V2.6.
* V1.3a 21-Feb-97, J Love Removed RICE.
* V1.3b 28-Feb-97, J Love Windows NT for MS Visual C/C++ on an IBM PC.
* V1.3c 11-Sep-97, J Love Magic numbers are now uInt32.
* V1.3d 20-Oct-97, J Love Properly cast the uInt32 magic numbers. More
* Windows NT.
* V1.3e 18-Nov-97, J Love Even more Windows NT.
* V2.0 08/Apr-04, M liu Replaced VSTREAM.STATS with VSTREAM_STATS.
* V2.1 29-Jun-04, M Liu Added LFS (Large File Support > 2G).
*
******************************************************************************/
#include "cdflib.h"
#include "cdflib64.h"
#include "cdfrev.h"
/******************************************************************************
* Max/MinLongLong.
******************************************************************************/
VISIBLE_PREFIX OFF_T MaxLongLong (a, b)
OFF_T a;
OFF_T b;
{
return MAXIMUM64(a,b);
}
VISIBLE_PREFIX OFF_T MinLongLong (a, b)
OFF_T a;
OFF_T b;
{
return MINIMUM64(a,b);
}
/******************************************************************************
* UpdateDotCDF64.
* If this routine is called when aborting a CDF, we cannot assume that
* the CDF structure is complete - it may have been only partially initialized
* when the CDF was aborted. If it is called to save the CDF without closing
* it, the data will be properly preserved.
******************************************************************************/
STATICforIDL CDFstatus UpdateDotCDF64 (CDF)
struct CDFstruct *CDF;
{
CDFstatus pStatus = CDF_OK; int varN; struct VarStruct *Var; Logical zVar;
/**************************************************************************
* Update r/zVariables depending on the variable type...
**************************************************************************/
for (zVar = 0; zVar <= 1; zVar++) {
if (BOO(zVar,CDF->zVars,CDF->rVars) != NULL) {
Int32 nVars = BOO(zVar,CDF->NzVars,CDF->NrVars);
for (varN = 0; varN < nVars; varN++) {
Var = BOO(zVar,CDF->zVars[varN],CDF->rVars[varN]);
if (Var != NULL) {
switch (Var->vType) {
case SPARSE_RECORDS_: {
if (!sX(FlushStage64(CDF,Var),&pStatus)) break;
/* No `break' is intentional. */
case STANDARD_:
if (Var->maxWritten < Var->maxAllocated) {
Int32 padFrom = Var->maxWritten + 1;
if (!sX(PadUnRecords64(CDF,Var,padFrom,
Var->maxAllocated),&pStatus)) break;
Var->maxWritten = Var->maxAllocated;
}
break;
}
case COMPRESSED_:
case SPARSE_COMPRESSED_RECORDS_:
if (!sX(FlushStage64(CDF,Var),&pStatus)) break;
break;
case SPARSE_ARRAYS_:
case SPARSE_RECORDS_AND_ARRAYS_:
sX (UNKNOWN_SPARSENESS, &pStatus);
break;
case IN_MULTI_:
break;
default:
sX (CDF_INTERNAL_ERROR, &pStatus);
break;
}
}
}
}
}
return pStatus;
}
/******************************************************************************
* CloseVarFiles64.
*
* Close the open variable files of the specified CDF. This routine closes all
* of the open variable files regardless of the number of errors detected.
*
* Because this routine is called when aborting a CDF, we cannot assume
* that the CDF structure is complete. Eg., it may have been only partially
* initialized when the CDF was aborted.
******************************************************************************/
STATICforIDL CDFstatus CloseVarFiles64 (CDF)
struct CDFstruct *CDF;
{
CDFstatus pStatus = CDF_OK; struct VarStruct *Var; int varN;
/****************************************************************************
* If a multi-file CDF, close the variable files.
****************************************************************************/
if (!CDF->singleFile) {
/**************************************************************************
* Close rVariable files. If the pointer to the rVariable is NULL, then
* the rVariable has yet to be initialized (and is obviously closed).
**************************************************************************/
if (CDF->rVars != NULL) {
for (varN = 0; varN < CDF->NrVars; varN++) {
Var = CDF->rVars[varN];
if (Var != NULL) {
if (Var->fp != NULL) {
if (!CLOSEv64(Var->fp,NULL,NULL)) sX (VAR_CLOSE_ERROR, &pStatus);
Var->fp = NULL;
}
}
}
}
/**************************************************************************
* Close zVariable files. If the pointer to the zVariable is NULL, then
* the zVariable has yet to be initialized (and is obviously closed).
**************************************************************************/
if (CDF->zVars != NULL) {
for (varN = 0; varN < CDF->NzVars; varN++) {
Var = CDF->zVars[varN];
if (Var != NULL) {
if (Var->fp != NULL) {
if (!CLOSEv64(Var->fp,NULL,NULL)) sX (VAR_CLOSE_ERROR, &pStatus);
Var->fp = NULL;
}
}
}
}
}
return pStatus;
}
/******************************************************************************
* WriteAccess64.
* Close and then reopen a CDF for read/write access (it was opened with
* read-only access initially). If the CDF is earlier than CDF V2.5, then
* some of the fields will have to be fixed and the CDR will be truncated for
* a shorter copyright length (unless the CDF is being deleted in which case
* it would be a waste of time to do these things).
******************************************************************************/
STATICforIDL Logical WriteAccess64 (CDF, forDelete, pStatus)
struct CDFstruct *CDF;
Logical forDelete; /* Is the write access is needed to delete the CDF? */
CDFstatus *pStatus; /* Returned status. */
{
#if BUILD_READ_ONLY_DISTRIBUTION
*pStatus = READ_ONLY_DISTRIBUTION;
return FALSE;
#else
char pathName[DU_MAX_PATH_LEN+1]; vSTATS vStats;
/***************************************************************************
* Check if write access already.
***************************************************************************/
if (CDF->status == READ_WRITE) return TRUE;
/***************************************************************************
* Check if this CDF is in read-only mode.
***************************************************************************/
if (CDF->readOnly) {
*pStatus = READ_ONLY_MODE;
return FALSE;
}
/***************************************************************************
* Close (the possibly compressed) dotCDF file and the variable files (if
* a multi-file CDF). An uncompressed dotCDF file and any scratch files
* stay open.
***************************************************************************/
if (!CLOSEv64(CDF->dotFp,NULL,&vStats)) {
CDF->dotFp = NULL;
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
CDF->dotFp = NULL;
AddTOvStats (&CDF->dotCDFvStats, &vStats);
#if defined(DEBUG)
DisplayVs (getenv("VSTREAM_STATS"), "DotCDF..", &vStats);
#endif
if (!sX(CloseVarFiles64(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
/***************************************************************************
* Open dotCDF file with read-write access. If read-write access not is
* allowed, try to return to read-only access. If reopening with read-only
* access fails, free CDF structures as if CDF had been closed.
***************************************************************************/
BuildFilePath (CDFt, CDF->CDFname, CDF->no_append, CDF->upper_case_ext,
CDF->version_numbers, 0L, pathName);
CDF->dotFp = V_open64 (pathName, READ_PLUS_a_mode);
if (CDF->dotFp == NULL) {
CDF->dotFp = V_open64 (pathName, READ_ONLY_a_mode);
if (CDF->dotFp == NULL) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
*pStatus = CDF_OPEN_ERROR;
return FALSE;
}
else {
CDF->status = READ_ONLY;
*pStatus = NO_WRITE_ACCESS; /* Don't return yet. */
}
}
else
CDF->status = READ_WRITE;
/***************************************************************************
* If the CDF is not compressed, reassign the "working" file pointer and
* reset the cache size (unless deleting). If the CDF is compressed, the
* cache size of the "working" file pointer does not have to be reset.
***************************************************************************/
if (CDF->uDotFp == NULL) {
CDF->fp = CDF->dotFp;
if (!forDelete) {
if (!CACHEv64(CDF->fp,CDF->workingCacheSize)) {
*pStatus = BAD_CACHE_SIZE;
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
}
}
/***************************************************************************
* Fix various fields (if write access was obtained) unless write access
* was needed to delete the CDF.
***************************************************************************/
if (CDF->status == READ_WRITE && !forDelete) {
Int32 versionNew = CDF_LIBRARY_VERSION,
releaseNew = CDF_LIBRARY_RELEASE,
incrementNew = CDF_LIBRARY_INCREMENT;
uInt32 magicNumber1 = V3magicNUMBER_1,
magicNumber2 = V3magicNUMBER_2u;
char copyRight[CDF_COPYRIGHT_LEN+1];
/*************************************************************************
* Update magic numbers.
*************************************************************************/
if (!SEEKv64(CDF->fp,(OFF_T)V3_MAGIC_OFFSET_1,vSEEK_SET)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
*pStatus = CDF_WRITE_ERROR;
return FALSE;
}
if (!Write32_64(CDF->fp,(Int32 *)&magicNumber1)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
*pStatus = CDF_WRITE_ERROR;
return FALSE;
}
if (!Write32_64(CDF->fp,(Int32 *)&magicNumber2)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
*pStatus = CDF_WRITE_ERROR;
return FALSE;
}
/*************************************************************************
* If a V2.0 CDF, correct the EOF field.
*************************************************************************/
if (CDF->badEOF) {
if (!sX(CorrectV20eof(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
CDF->badEOF = FALSE;
}
/*************************************************************************
* If a V2.0 CDF, correct the terminating offset fields. NOTE: Fix these
* fields before the other "fixing" routines (which may depend on these
* fields).
*************************************************************************/
if (CDF->badTerminatingOffsets) {
if (!sX(CorrectV20offsets(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
CDF->badTerminatingOffsets = FALSE;
}
/*************************************************************************
* If prior to CDF V2.1.1, then change the data type associated with the
* "EPOCH" rVariable/rEntries to CDF_EPOCH.
*************************************************************************/
if (CDF->fakeEPOCH) {
if (!sX(CorrectEPOCH(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
CDF->fakeEPOCH = FALSE;
}
/*************************************************************************
* If prior to CDF V2.5, then truncate the CDR for a shorter copyright
* field and shorten each VDR to reclaim the wasted space.
*************************************************************************/
if (CDF->wastedSpace) {
if (!sX(ShortenCDR(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
if (!sX(ShortenVDRs(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
CDF->wastedSpace = FALSE;
}
/*************************************************************************
* If prior to CDF V2.5, then convert all assumed scopes to definite
* scopes.
*************************************************************************/
if (CDF->assumedScopes) {
if (!sX(CorrectScopes(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
CDF->assumedScopes = FALSE;
}
/*************************************************************************
* Fix blocking factors for variables having a recVary of NOVARY.
*************************************************************************/
if (!sX(CorrectBlockingFactors64(CDF),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
/*************************************************************************
* Update version/release/increment.
*************************************************************************/
if (isLFS(CDF)) {
if (!sX(WriteCDR64(CDF->fp,V3_CDR_OFFSET64,
CDR_VERSION,&versionNew,
CDR_RELEASE,&releaseNew,
CDR_INCREMENT,&incrementNew,
CDR_NULL),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
}
/*************************************************************************
* Update copyright.
*************************************************************************/
CDFcopyRight (copyRight);
NulPad (copyRight, CDF_COPYRIGHT_LEN);
if (!sX(WriteCDR64(CDF->fp,V3_CDR_OFFSET64,
CDR_COPYRIGHT,copyRight,
CDR_NULL),pStatus)) {
AbortAccess64 (CDF, noUPDATE, noDELETE);
return FALSE;
}
}
/***************************************************************************
* Return based on whether or not write access was obtained.
***************************************************************************/
return (CDF->status == READ_WRITE);
#endif
}
/******************************************************************************
* WriteBuffer64.
* Write occurs at current offset (assumed to have been set before this
* routine is called). On IBM PCs, it is assumed that `nBytes' will not
* exceed 65535.
******************************************************************************/
STATICforIDL CDFstatus WriteBuffer64 (CDF, fp, dataType, numElems, buffer)
struct CDFstruct *CDF;
vFILE *fp;
Int32 dataType;
Int32 numElems;
void *buffer;
{
CDFstatus pStatus = CDF_OK;
size_t nElemBytes = CDFelemSize(dataType);
size_t nBytes = (size_t) (numElems * nElemBytes);
double eValue; Int32 elemN; Byte *ptr; void *tBuffer;
/****************************************************************************
* Try to encode/write entire buffer.
****************************************************************************/
tBuffer = cdf_AllocateMemory (nBytes, NULL);
if (tBuffer != NULL) {
if (!sX(ConvertBuffer(HostEncoding(),CDF->encoding,CDF->negToPosFp0,
dataType,numElems,buffer,tBuffer),&pStatus)) {
cdf_FreeMemory (tBuffer, NULL);
return pStatus;
}
if (!WRITEv64(tBuffer,1,nBytes,fp)) {
cdf_FreeMemory (tBuffer, NULL);
return CDF_WRITE_ERROR;
}
cdf_FreeMemory (tBuffer, NULL);
return pStatus;
}
/****************************************************************************
* If that failed, encode/write one element at a time.
****************************************************************************/
for (elemN = 0, ptr = buffer; elemN < numElems; elemN++, ptr += nElemBytes) {
if (!sX(ConvertBuffer(HostEncoding(),CDF->encoding,
CDF->negToPosFp0,dataType,1L,ptr,
&eValue),&pStatus)) return pStatus;
if (!WRITEv64(&eValue,1,nElemBytes,fp)) return CDF_WRITE_ERROR;
}
return pStatus;
}
/******************************************************************************
* UpdateMaxRec64.
******************************************************************************/
STATICforIDL CDFstatus UpdateMaxRec64 (CDF, Var, recNum)
struct CDFstruct *CDF; /* In: Pointer to CDF. */
struct VarStruct *Var; /* In: Pointer to variable. */
Int32 recNum; /* In: Possible new maximum record number. */
{
CDFstatus pStatus = CDF_OK;
if (recNum > Var->maxRec) {
Var->maxRec = recNum;
if (!sX(WriteVDR64(CDF,CDF->fp,Var->VDRoffset64,Var->zVar,
VDR_MAXREC,&recNum,
VDR_NULL),&pStatus)) return pStatus;
}
if (!Var->zVar) {
if (recNum > CDF->rMaxRec) {
CDF->rMaxRec = recNum;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_rMAXREC,&recNum,
GDR_NULL),&pStatus)) return pStatus;
}
}
return pStatus;
}
/******************************************************************************
* CalcDimParms64.
* Calculates a variable's number of dimensions, dimension sizes, and
* dimension variances depending on the current zMode.
******************************************************************************/
STATICforIDL CDFstatus CalcDimParms64 (CDF, offset, zVar, numDimsP, dimSizesP,
dimVarysP)
struct CDFstruct *CDF; /* In: Pointer to CDF. */
OFF_T offset; /* In: Offset of VDR. */
Logical zVar; /* In: TRUE if a true zVariable. FALSE if a
true rVariable. */
Int32 *numDimsP; /* Out: Number of dimensions. */
Int32 dimSizesP[]; /* Out: Dimension sizes. */
Int32 dimVarysP[]; /* Out: Dimension variances. */
{
CDFstatus pStatus = CDF_OK; int dN;
Int32 tNumDims, tDimSizes[CDF_MAX_DIMS], tDimVarys[CDF_MAX_DIMS];
Int32 numDims, dimSizes[CDF_MAX_DIMS], dimVarys[CDF_MAX_DIMS];
/****************************************************************************
* Determine `true' parameters.
****************************************************************************/
if (zVar) {
if (!sX(ReadVDR64(CDF,CDF->fp,offset,TRUE,
VDR_zNUMDIMS,&tNumDims,
VDR_zDIMSIZES,tDimSizes,
VDR_DIMVARYS,tDimVarys,
VDR_NULL),&pStatus)) return pStatus;
}
else {
if (!sX(ReadGDR64(CDF->fp,CDF->GDRoffset64,
GDR_rNUMDIMS,&tNumDims,
GDR_rDIMSIZES,tDimSizes,
GDR_NULL),&pStatus)) {
return pStatus;
}
if (!sX(ReadVDR64(CDF,CDF->fp,offset,FALSE,
VDR_DIMVARYS,tDimVarys,
VDR_NULL),&pStatus)) return pStatus;
}
/****************************************************************************
* Determine parameters based on zMode and if r/zVariable.
****************************************************************************/
if (CDF->zMode == zMODEon2 && !zVar) {
for (dN = 0, numDims = 0; dN < tNumDims; dN++) {
if (tDimVarys[dN]) {
dimSizes[(int)numDims] = tDimSizes[dN];
dimVarys[(int)numDims] = VARY;
numDims++;
}
}
}
else {
numDims = tNumDims;
for (dN = 0; dN < tNumDims; dN++) {
dimSizes[dN] = tDimSizes[dN];
dimVarys[dN] = tDimVarys[dN];
}
}
/****************************************************************************
* Assign those values requested.
****************************************************************************/
ASSIGNnotNULL (numDimsP, numDims)
ASSIGNnotNULLarray (dimSizesP, numDims, dimSizes)
ASSIGNnotNULLarray (dimVarysP, numDims, dimVarys)
return pStatus;
}
/******************************************************************************
* WasteIR64.
******************************************************************************/
STATICforIDL CDFstatus WasteIR64 (CDF, wasteOffset, size)
struct CDFstruct *CDF;
OFF_T wasteOffset;
OFF_T size;
{
CDFstatus pStatus = CDF_OK;
struct UIRstruct64 newUIR, firstUIR, tUIR, nextUIR;
OFF_T tOffset, nextOffset, UIRhead;
/****************************************************************************
* Begin initializing UIR.
****************************************************************************/
newUIR.RecordSize = size;
newUIR.RecordType = UIR_;
/****************************************************************************
* Check that the internal record being wasted is big enough for the `next'
* and `previous' fields. If not, mark it as wasted but don't place it in
* the linked list of UIRs. Note that there will always be enough room for
* the `size' and `type' fields. If not, an internal logic error has occured.
****************************************************************************/
if (size < UIR_BASE_SIZE64) {
if (size < UUIR_BASE_SIZE64) return CDF_INTERNAL_ERROR;
if (!sX(WriteUIR64(CDF->fp,wasteOffset,
UIR_RECORDSIZE,&(newUIR.RecordSize),
UIR_RECORDTYPE,&(newUIR.RecordType),
UIR_NULL),&pStatus)) return pStatus;
return pStatus;
}
/****************************************************************************
* Read offset of first UIR.
****************************************************************************/
if (!sX(ReadGDR64(CDF->fp,CDF->GDRoffset64,
GDR_UIRHEAD,&UIRhead,
GDR_NULL),&pStatus)) return pStatus;
/****************************************************************************
* Check if no UIRs exist yet.
****************************************************************************/
if (UIRhead == 0) {
newUIR.NextUIR = 0;
newUIR.PrevUIR = 0;
if (!sX(WriteUIR64(CDF->fp,wasteOffset,
UIR_RECORD,&newUIR,
UIR_NULL),&pStatus)) return pStatus;
UIRhead = wasteOffset;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_UIRHEAD,&UIRhead,
GDR_NULL),&pStatus)) return pStatus;
return pStatus;
}
/****************************************************************************
* At least one UIR exists, check if the new UIR is before the first UIR.
****************************************************************************/
if (wasteOffset < UIRhead) {
if (!sX(ReadUIR64(CDF->fp,UIRhead,
UIR_RECORD,&firstUIR,
UIR_NULL),&pStatus)) return pStatus;
newUIR.NextUIR = UIRhead;
newUIR.PrevUIR = 0;
if (!sX(WriteUIR64(CDF->fp,wasteOffset,
UIR_RECORD,&newUIR,
UIR_NULL),&pStatus)) return pStatus;
firstUIR.PrevUIR = wasteOffset;
if (!sX(WriteUIR64(CDF->fp,UIRhead,
UIR_RECORD,&firstUIR,
UIR_NULL),&pStatus)) return pStatus;
UIRhead = wasteOffset;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_UIRHEAD,&UIRhead,
GDR_NULL),&pStatus)) return pStatus;
return pStatus;
}
/****************************************************************************
* The new UIR is not before the first UIR. Scan the UIRs to find the point
* at which it should be inserted.
****************************************************************************/
tOffset = UIRhead;
if (!sX(ReadUIR64(CDF->fp,tOffset,
UIR_RECORD,&tUIR,
UIR_NULL),&pStatus)) return pStatus;
while (tUIR.NextUIR != 0) {
if (wasteOffset < tUIR.NextUIR) {
nextOffset = tUIR.NextUIR;
if (!sX(ReadUIR64(CDF->fp,nextOffset,
UIR_RECORD,&nextUIR,
UIR_NULL),&pStatus)) return pStatus;
newUIR.NextUIR = tUIR.NextUIR;
newUIR.PrevUIR = tOffset;
if (!sX(WriteUIR64(CDF->fp,wasteOffset,
UIR_RECORD,&newUIR,
UIR_NULL),&pStatus)) return pStatus;
tUIR.NextUIR = wasteOffset;
if (!sX(WriteUIR64(CDF->fp,tOffset,
UIR_RECORD,&tUIR,
UIR_NULL),&pStatus)) return pStatus;
nextUIR.PrevUIR = wasteOffset;
if (!sX(WriteUIR64(CDF->fp,nextOffset,
UIR_RECORD,&nextUIR,
UIR_NULL),&pStatus)) return pStatus;
return pStatus;
}
tOffset = tUIR.NextUIR;
if (!sX(ReadUIR64(CDF->fp,tOffset,
UIR_RECORD,&tUIR,
UIR_NULL),&pStatus)) return pStatus;
}
/****************************************************************************
* The new UIR is going to be the last UIR.
****************************************************************************/
newUIR.NextUIR = 0;
newUIR.PrevUIR = tOffset;
if (!sX(WriteUIR64(CDF->fp,wasteOffset,
UIR_RECORD,&newUIR,
UIR_NULL),&pStatus)) return pStatus;
tUIR.NextUIR = wasteOffset;
if (!sX(WriteUIR64(CDF->fp,tOffset,
UIR_RECORD,&tUIR,
UIR_NULL),&pStatus)) return pStatus;
return pStatus;
}
/******************************************************************************
* AllocateIR64.
******************************************************************************/
STATICforIDL CDFstatus AllocateIR64 (CDF, size, offset)
struct CDFstruct *CDF; /* In: Pointer to CDF. */
OFF_T size; /* In: Size of internal record (bytes). */
OFF_T *offset; /* Out: Offset of allocated internal record. */
{
CDFstatus pStatus = CDF_OK;
Int32 uir_ = UIR_;
OFF_T tSize, sOffset, eOffset, UIRhead, eof;
struct UIRstruct64 sUIR, eUIR;
/****************************************************************************
* Read EOF and offset of first UIR from GDR.
****************************************************************************/
if (!sX(ReadGDR64(CDF->fp,CDF->GDRoffset64,
GDR_UIRHEAD,&UIRhead,
GDR_EOF,&eof,
GDR_NULL),&pStatus)) return pStatus;
/****************************************************************************
* If UIRs exist, try to use one or more of them (if contiguous) for the new
* internal record.
****************************************************************************/
if (UIRhead != 0) {
sOffset = UIRhead;
if (!sX(ReadUIR64(CDF->fp,sOffset,
UIR_RECORD,&sUIR,
UIR_NULL),&pStatus)) return pStatus;
eOffset = sOffset;
eUIR = sUIR;
tSize = sUIR.RecordSize;
for (;;) {
/***********************************************************************
* Check if the starting to ending UIRs are the exact size needed.
***********************************************************************/
if (size == tSize) {
if (!sX(RemoveUIRs64(CDF,sOffset,eOffset),&pStatus)) return pStatus;
if (!sX(WriteIrSize64(CDF->fp,sOffset,&size),&pStatus)) return pStatus;
if (!sX(WriteIrType64(CDF->fp,sOffset,&uir_),&pStatus)) return pStatus;
*offset = sOffset;
return pStatus;
}
/***********************************************************************
* Check if the starting to ending UIRs are big enough for the new
* internal record and for a new UIR to fill the remaining space.
***********************************************************************/
if (size + UIR_BASE_SIZE64 <= tSize) {
if (!sX(RemoveUIRs64(CDF,sOffset,eOffset),&pStatus)) return pStatus;
if (!sX(WasteIR64(CDF,sOffset+size,tSize-size),&pStatus)) {
return pStatus;
}
if (!sX(WriteIrSize64(CDF->fp,sOffset,&size),&pStatus)) return pStatus;
if (!sX(WriteIrType64(CDF->fp,sOffset,&uir_),&pStatus)) return pStatus;
*offset = sOffset;
return pStatus;
}
/***********************************************************************
* Check if the end of the UIRs has been reached. If so, check if the
* ending UIR is the last IR in the dotCDF file.
***********************************************************************/
if (eUIR.NextUIR == 0) {
if (eOffset + (OFF_T) eUIR.RecordSize == eof) {
/*******************************************************************
* The ending UIR is the last internal record in the CDF. Check to
* see if after allocating the new internal record less than
* UIR_BASE_SIZE64 bytes will remain before the EOF. If so, waste an
* internal record at the location of those bytes so that a UIR is
* at the end (rather than stranded bytes).
*******************************************************************/
if (!sX(RemoveUIRs64(CDF,sOffset,eOffset),&pStatus)) return pStatus;
if (size < tSize) {
if (!sX(WasteIR64(CDF,sOffset+size,
UIR_BASE_SIZE64),&pStatus)) return pStatus;
eof = sOffset + (OFF_T) (size + UIR_BASE_SIZE64);
}
else
eof = sOffset + (OFF_T) size;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_EOF,&eof,
GDR_NULL),&pStatus)) return pStatus;
if (!sX(WriteIrSize64(CDF->fp,
sOffset,
&size),&pStatus)) return pStatus;
if (!sX(WriteIrType64(CDF->fp,
sOffset,
&uir_),&pStatus)) return pStatus;
*offset = sOffset;
return pStatus;
}
else {
/*******************************************************************
* Non-UIRs follow the ending UIR. The new internal record will
* have to be allocated at the EOF.
*******************************************************************/
*offset = eof;
if (!sX(WriteIrSize64(CDF->fp,eof,&size),&pStatus)) return pStatus;
if (!sX(WriteIrType64(CDF->fp,eof,&uir_),&pStatus)) return pStatus;
eof += (OFF_T) size;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_EOF,&eof,
GDR_NULL),&pStatus)) return pStatus;
return pStatus;
}
}
/***********************************************************************
* If the next UIR is contiguous with the ending UIR, make it the ending
* UIR. Otherwise, make the next UIR the starting and ending UIRs.
***********************************************************************/
if (eOffset + eUIR.RecordSize == eUIR.NextUIR) {
eOffset = eUIR.NextUIR;
if (!sX(ReadUIR64(CDF->fp,eOffset,
UIR_RECORD,&eUIR,
UIR_NULL),&pStatus)) return pStatus;
tSize += eUIR.RecordSize;
}
else {
sOffset = eUIR.NextUIR;
if (!sX(ReadUIR64(CDF->fp,sOffset,
UIR_RECORD,&sUIR,
UIR_NULL),&pStatus)) return pStatus;
eOffset = sOffset;
eUIR = sUIR;
tSize = sUIR.RecordSize;
}
}
}
/****************************************************************************
* No UIRs exist. The new internal record will have to be allocated at the
* EOF.
****************************************************************************/
*offset = eof;
if (!sX(WriteIrSize64(CDF->fp,eof,&size),&pStatus)) return pStatus;
if (!sX(WriteIrType64(CDF->fp,eof,&uir_),&pStatus)) return pStatus;
eof += size;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_EOF,&eof,
GDR_NULL),&pStatus)) return pStatus;
return pStatus;
}
/******************************************************************************
* ResizeIR64.
******************************************************************************/
STATICforIDL CDFstatus ResizeIR64 (CDF, curOffset, newSize, newOffset, move,
success)
struct CDFstruct *CDF;
OFF_T curOffset; /* In: Current offset of internal record. */
OFF_T newSize; /* In: New size of internal record. This may be
smaller or larger than the current size. */
OFF_T *newOffset; /* Out: New offset of internal record. This variable
is not modified if an error occurs or the internal
record cannot be extended (when `move' is FALSE). */
Logical move; /* In: TRUE if the internal record can be moved if
necessary. */
Logical *success; /* Out: TRUE if the internal record was successfully
extended (whether or not it had to be moved). */
{
CDFstatus pStatus = CDF_OK; OFF_T curSize;
OFF_T eof;
/****************************************************************************
* Determine current size of internal record.
****************************************************************************/
if (!sX(ReadIrSize64(CDF->fp,curOffset,&curSize),&pStatus)) return pStatus;
/****************************************************************************
* Check sizes...
****************************************************************************/
if (newSize > curSize) {
/**************************************************************************
* The internal record is growing. First check if it is the last one in
* the CDF.
**************************************************************************/
if (!sX(ReadGDR64(CDF->fp,CDF->GDRoffset64,
GDR_EOF,&eof,
GDR_NULL),&pStatus)) return pStatus;
if (curOffset + (OFF_T) curSize == eof) {
/************************************************************************
* Last internal record. Simply extend the CDF.
************************************************************************/
ASSIGNnotNULL (newOffset, curOffset)
eof += (OFF_T) (newSize - curSize);
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_EOF,&eof,
GDR_NULL),&pStatus)) return pStatus;
if (!sX(WriteIrSize64(CDF->fp,
curOffset,
&newSize),&pStatus)) return pStatus;
ASSIGNnotNULL (success, TRUE)
return pStatus;
}
else {
/************************************************************************
* Not the last internal record. If the internal record may be moved,
* first mark it as unused and then allocate a new internal record.
* Marking it unused first allows the possibility that if will be used
* as part of the allocated internal record. If the internal record can
* not be moved, check if unused records immediately follow.
************************************************************************/
if (move) {
if (!sX(WasteIR64(CDF,curOffset,curSize),&pStatus)) return pStatus;
if (!sX(AllocateIR64(CDF,newSize,newOffset),&pStatus)) return pStatus;
ASSIGNnotNULL (success, TRUE)
return pStatus;
}
else {
Int32 irType;
OFF_T sOffset, eOffset, tSize, UIRhead;
struct UIRstruct64 sUIR, eUIR;
/**********************************************************************
* First check if there are any UIRs in the CDF. This is done because
* CDF V2.5.0* (alpha/beta) created UIRs without the next and previous
* UIR fields and didn't use the `UIRhead' field in the GDR. Because
* we don't want to use UIRs in those CDFs (because they are not the
* same as the current UIRs), this will keep us from doing so (because
* the `UIRhead' fields will always contain zero if a V2.5.0* CDF).
**********************************************************************/
if (!sX(ReadGDR64(CDF->fp,CDF->GDRoffset64,
GDR_UIRHEAD,&UIRhead,
GDR_NULL),&pStatus)) return pStatus;
if (UIRhead == 0) {
ASSIGNnotNULL (success, FALSE)
return pStatus;
}
/**********************************************************************
* Read the internal record which immediately follows the internal
* record being resized. If it is a UIR make it the starting UIR.
* ---------------------------- DANGER ---------------------------------
* Don't try to read an entire UIR. First read only the record type
* field and check if it is UIR_. Then read the entire UIR. This is
* because the next internal record could be smaller than a UIR (or
* larger but not entirely written yet [eg. a VVR]).
**********************************************************************/
sOffset = curOffset + curSize;
if (!sX(ReadIrType64(CDF->fp,sOffset,&irType),&pStatus)) return pStatus;
if (irType != UIR_) {
ASSIGNnotNULL (success, FALSE)
return pStatus;
}
if (!sX(ReadUIR64(CDF->fp,sOffset,
UIR_RECORD,&sUIR,
UIR_NULL),&pStatus)) return pStatus;
tSize = curSize + sUIR.RecordSize;
eOffset = sOffset;
eUIR = sUIR;
for (;;) {
/*******************************************************************
* Check if the exact amount of available space has been found.
*******************************************************************/
if (newSize == tSize) {
if (!sX(RemoveUIRs64(CDF,sOffset,eOffset),&pStatus)) return pStatus;
if (!sX(WriteIrSize64(CDF->fp,
curOffset,
&newSize),&pStatus)) return pStatus;
ASSIGNnotNULL (newOffset, curOffset)
ASSIGNnotNULL (success, TRUE)
return pStatus;
}
/*******************************************************************
* Check if enough available space has been found to increase the
* internal record and then create a new UIR in the remaining space.
*******************************************************************/
if (newSize + UIR_BASE_SIZE64 <= tSize) {
if (!sX(RemoveUIRs64(CDF,sOffset,eOffset),&pStatus)) return pStatus;
if (!sX(WasteIR64(CDF,curOffset+newSize,tSize-newSize),&pStatus)) {
return pStatus;
}
if (!sX(WriteIrSize64(CDF->fp,
curOffset,
&newSize),&pStatus)) return pStatus;
ASSIGNnotNULL (newOffset, curOffset)
ASSIGNnotNULL (success, TRUE)
return pStatus;
}
/*******************************************************************
* Check if the end of the UIRs has been reached.
*******************************************************************/
if (eUIR.NextUIR == 0) {
/*****************************************************************
* If the ending UIR is at the EOF, then the internal record can
* be extended beyond the EOF or up to it with the creation of a
* new UIR at the very end.
*****************************************************************/
if (eOffset + (OFF_T) eUIR.RecordSize == eof) {
if (!sX(RemoveUIRs64(CDF,sOffset,eOffset),&pStatus)) return
pStatus;
if (newSize < tSize) {
if (!sX(WasteIR64(CDF,curOffset+newSize,
UIR_BASE_SIZE64),&pStatus)) return pStatus;
eof = curOffset + (OFF_T) (newSize + UIR_BASE_SIZE64);
}
else
eof = curOffset + (OFF_T) newSize;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_EOF,&eof,
GDR_NULL),&pStatus)) return pStatus;
if (!sX(WriteIrSize64(CDF->fp,
curOffset,
&newSize),&pStatus)) return pStatus;
ASSIGNnotNULL (newOffset, curOffset)
ASSIGNnotNULL (success, TRUE)
return pStatus;
}
else {
ASSIGNnotNULL (success, FALSE)
return pStatus;
}
}
/*******************************************************************
* If the next UIR is contiguous with the ending UIR, make it the
* ending UIR.
*******************************************************************/
if (eOffset + eUIR.RecordSize == eUIR.NextUIR) {
eOffset = eUIR.NextUIR;
if (!sX(ReadUIR64(CDF->fp,eOffset,
UIR_RECORD,&eUIR,
UIR_NULL),&pStatus)) return pStatus;
tSize += eUIR.RecordSize;
}
else {
ASSIGNnotNULL (success, FALSE)
return pStatus;
}
}
}
}
}
else {
/**************************************************************************
* The internal record is shrinking. Check if it can be shrunk in place
* and a UIR created to occupy the extra space. If not, waste it and then
* allocate a new internal record (if moving it is allowed).
**************************************************************************/
if (newSize <= (curSize - UIR_BASE_SIZE64)) {
if (!sX(WasteIR64(CDF,curOffset + newSize,
curSize - newSize),&pStatus)) return pStatus;
if (!sX(WriteIrSize64(CDF->fp,
curOffset,
&newSize),&pStatus)) return pStatus;
ASSIGNnotNULL (newOffset, curOffset)
ASSIGNnotNULL (success, TRUE)
}
else {
if (move) {
if (!sX(WasteIR64(CDF,curOffset,curSize),&pStatus)) return pStatus;
if (!sX(AllocateIR64(CDF,newSize,newOffset),&pStatus)) return pStatus;
ASSIGNnotNULL (success, TRUE)
}
else {
ASSIGNnotNULL (success, FALSE)
}
}
return pStatus;
}
}
/******************************************************************************
* RemoveUIRs64.
******************************************************************************/
STATICforIDL CDFstatus RemoveUIRs64 (CDF, sOffset, eOffset)
struct CDFstruct *CDF; /* In: Pointer to CDF. */
OFF_T sOffset; /* In: Offset of starting UIR. */
OFF_T eOffset; /* In: Offset of ending UIR. */
{
CDFstatus pStatus = CDF_OK;
struct UIRstruct64 sUIR, eUIR;
OFF_T UIRhead;
if (!sX(ReadGDR64(CDF->fp,CDF->GDRoffset64,
GDR_UIRHEAD,&UIRhead,
GDR_NULL),&pStatus)) return pStatus;
if (!sX(ReadUIR64(CDF->fp,sOffset,
UIR_RECORD,&sUIR,
UIR_NULL),&pStatus)) return pStatus;
if (!sX(ReadUIR64(CDF->fp,eOffset,
UIR_RECORD,&eUIR,
UIR_NULL),&pStatus)) return pStatus;
if (UIRhead == sOffset) {
UIRhead = eUIR.NextUIR;
if (!sX(WriteGDR64(CDF->fp,CDF->GDRoffset64,
GDR_UIRHEAD,&UIRhead,
GDR_NULL),&pStatus)) return pStatus;
}
else {
struct UIRstruct64 prevUIR;
if (!sX(ReadUIR64(CDF->fp,sUIR.PrevUIR,
UIR_RECORD,&prevUIR,
UIR_NULL),&pStatus)) return pStatus;
prevUIR.NextUIR = eUIR.NextUIR;
if (!sX(WriteUIR64(CDF->fp,sUIR.PrevUIR,
UIR_RECORD,&prevUIR,
UIR_NULL),&pStatus)) return pStatus;
}
if (eUIR.NextUIR != 0) {
struct UIRstruct64 nextUIR;
if (!sX(ReadUIR64(CDF->fp,eUIR.NextUIR,
UIR_RECORD,&nextUIR,
UIR_NULL),&pStatus)) return pStatus;
nextUIR.PrevUIR = sUIR.PrevUIR;
if (!sX(WriteUIR64(CDF->fp,eUIR.NextUIR,
UIR_RECORD,&nextUIR,
UIR_NULL),&pStatus)) return pStatus;
}
return pStatus;
}
/******************************************************************************
* CorrectBlockingFactors64.
* It is assumed that the last rVDR offset has already been fixed.
******************************************************************************/
STATICforIDL CDFstatus CorrectBlockingFactors64 (CDF)
struct CDFstruct *CDF;
{
CDFstatus pStatus = CDF_OK; Int32 nVars; OFF_T vdrOffset; int varN;
Logical zVar; struct VDRstruct64 VDR; struct VarStruct **Vars, *Var;
for (zVar = 0; zVar <= 1; zVar++) {
Vars = BOO(zVar,CDF->zVars,CDF->rVars);
nVars = BOO(zVar,CDF->NzVars,CDF->NrVars);
for (varN = 0; varN < nVars; varN++) {
Var = Vars[varN];
if (Var == NULL) {
if (!sX(FindVarByNumber64(CDF,(Int32)varN,
zVar,&vdrOffset),&pStatus)) return pStatus;
}
else
vdrOffset = Var->VDRoffset64;
if (!sX(ReadVDR64(CDF,CDF->fp,vdrOffset,zVar,
VDR_RECORD,&VDR,NULL,
VDR_NULL),&pStatus)) return pStatus;
if (!RECvaryBITset(VDR.Flags) && VDR.blockingFactor > 1) {
VDR.blockingFactor = 1;
if (!sX(WriteVDR64(CDF,CDF->fp,vdrOffset,zVar,
VDR_RECORD,&VDR,NULL,
VDR_NULL),&pStatus)) return pStatus;
if (Var != NULL) {
if (!sX(CalcBF64(CDF,Var),&pStatus)) return pStatus;
}
}
}
}
return pStatus;
}
/******************************************************************************
* AbortAccess64.
******************************************************************************/
STATICforIDL void AbortAccess64 (CDF, updateCDF, deleteCDF)
struct CDFstruct *CDF;
Logical updateCDF; /* Update "working" dotCDF file (if read/write
access has been obtained)? */
Logical deleteCDF; /* Delete CDF file(s)? */
{
/****************************************************************************
* If the CDF is to be deleted do that first and then skip the updating and/or
* closing of the CDF files.
****************************************************************************/
if (deleteCDF) {
DeleteCDFfiles (CDF);
if (CDF->uDotFp != NULL) V_delete64 (CDF->uDotFp, NULL);
}
else {
/**************************************************************************
* Update the dotCDF file if requested, if the current access is read/write,
* and if the "working" dotCDF file has not already been closed or deleted.
**************************************************************************/
if (CDF->status == READ_WRITE && updateCDF &&
(CDF->fp == CDF->dotFp || CDF->fp == CDF->uDotFp)) UpdateDotCDF64 (CDF);
/**************************************************************************
* Close all of the CDF files if they are not already closed (or deleted).
**************************************************************************/
if (CDF->dotFp != NULL) V_close64 (CDF->dotFp, CDF, NULL);
if (CDF->uDotFp != NULL) V_close64 (CDF->uDotFp, CDF, NULL);
CloseVarFiles64 (CDF);
}
/****************************************************************************
* Delete the scratch files that still exist.
****************************************************************************/
if (CDF->stage.fp != NULL) V_delete64 (CDF->stage.fp, NULL);
if (CDF->compressFp != NULL) V_delete64 (CDF->compressFp, NULL);
/****************************************************************************
* Free the memory used by the CDF.
****************************************************************************/
FreeCDFid (CDF, TRUE);
return;
}
/******************************************************************************
* DeleteCDFfiles64.
* The files may be open or closed. This routine does not delete the
* uncompressed dotCDF file (if one exists).
******************************************************************************/
STATICforIDL CDFstatus DeleteCDFfiles64 (CDF)
struct CDFstruct *CDF;
{
char tmpFile[DU_MAX_PATH_LEN+1]; CDFstatus pStatus = CDF_OK;
/**************************************************************************
* Delete dotCDF file.
**************************************************************************/
if (CDF->dotFp == NULL) {
BuildFilePath (CDFt, CDF->CDFname, CDF->no_append, CDF->upper_case_ext,
CDF->version_numbers, INT32_ZERO, tmpFile);
if (!DeleteFile(tmpFile)) sX (CDF_DELETE_ERROR, &pStatus);
}
else {
if (!DELETEv64(CDF->dotFp,NULL)) sX (CDF_DELETE_ERROR, &pStatus);
CDF->dotFp = NULL;
}
/**************************************************************************
* Delete the variable files (if multi-file). Both rVariable and zVariable
* files are deleted.
**************************************************************************/
if (!CDF->singleFile) {
int varN;
for (varN = 0; varN < CDF->NrVars; varN++) {
struct VarStruct *Var = CDF->rVars[varN];
if (Var != NULL) {
if (Var->fp != NULL) {
if (!DELETEv64(Var->fp,NULL)) sX (VAR_DELETE_ERROR, &pStatus);
Var->fp = NULL;
continue;
}
}
BuildFilePath (Vt, CDF->CDFname, CDF->no_append, CDF->upper_case_ext,
CDF->version_numbers, varN, tmpFile);
if (!DeleteFile(tmpFile)) sX (VAR_DELETE_ERROR, &pStatus);
}
for (varN = 0; varN < CDF->NzVars; varN++) {
struct VarStruct *Var = CDF->zVars[varN];
if (Var != NULL) {
if (Var->fp != NULL) {
if (!DELETEv64(Var->fp,NULL)) sX (VAR_DELETE_ERROR, &pStatus);
Var->fp = NULL;
continue;
}
}
BuildFilePath (Zt, CDF->CDFname, CDF->no_append, CDF->upper_case_ext,
CDF->version_numbers, varN, tmpFile);
if (!DeleteFile(tmpFile)) sX (VAR_DELETE_ERROR, &pStatus);
}
}
return pStatus;
}
/******************************************************************************
* DeleteEntry64.
******************************************************************************/
STATICforIDL CDFstatus DeleteEntry64 (CDF, aOffset, eOffset)
struct CDFstruct *CDF;
OFF_T aOffset;
OFF_T eOffset;
{
CDFstatus pStatus = CDF_OK;
struct ADRstruct64 ADR;
struct AEDRstruct64 AEDR, AEDRt;
OFF_T prevEntryOffset;
Logical zEntry;
/****************************************************************************
* Read the ADR and the AEDR being deleted.
****************************************************************************/
if (!sX(ReadADR64(CDF->fp,aOffset,
ADR_RECORD,&ADR,
ADR_NULL),&pStatus)) return pStatus;
if (!sX(ReadAEDR64(CDF->fp,eOffset,
AEDR_RECORD,&AEDR,NULL,
AEDR_NULL),&pStatus)) return pStatus;
zEntry = (AEDR.RecordType == AzEDR_);
/****************************************************************************
* Remove the AEDR from the list of entries.
****************************************************************************/
if (!sX(FindPrevEntry64(CDF,aOffset,eOffset,
zEntry,&prevEntryOffset),&pStatus)) return pStatus;
if (prevEntryOffset == 0) {
/**************************************************************************
* The first entry on the linked list is being deleted. Point the ADR to
* the entry being pointed to by the entry being deleted.
**************************************************************************/
if (zEntry)
ADR.AzEDRhead = AEDR.AEDRnext;
else
ADR.AgrEDRhead = AEDR.AEDRnext;
}
else {
/**************************************************************************
* The entry being deleted is not the first entry on the linked list. Point
* the previous entry to the entry pointed to by the entry being deleted.
**************************************************************************/
if (!sX(ReadAEDR64(CDF->fp,prevEntryOffset,
AEDR_RECORD,&AEDRt,NULL,
AEDR_NULL),&pStatus)) return pStatus;
AEDRt.AEDRnext = AEDR.AEDRnext;
if (!sX(WriteAEDR64(CDF,CDF->fp,prevEntryOffset,
AEDR_RECORD,&AEDRt,NULL,
AEDR_NULL),&pStatus)) return pStatus;
}
/****************************************************************************
* Decrement the number of entries and recalculate the maximum entry (if
* necessary).
****************************************************************************/
if (zEntry)
ADR.NzEntries--;
else
ADR.NgrEntries--;
if (BOO(zEntry,ADR.MAXzEntry,ADR.MAXgrEntry) == AEDR.Num) {
Int32 maxEntry = NO_ENTRY;
OFF_T tOffset = BOO(zEntry,ADR.AzEDRhead,ADR.AgrEDRhead);
while (tOffset != 0) {
if (!sX(ReadAEDR64(CDF->fp,tOffset,
AEDR_RECORD,&AEDRt,NULL,
AEDR_NULL),&pStatus)) return pStatus;
maxEntry = MaxInt32 (maxEntry, AEDRt.Num);
tOffset = AEDRt.AEDRnext;
}
if (zEntry)
ADR.MAXzEntry = maxEntry;
else
ADR.MAXgrEntry = maxEntry;
}
/****************************************************************************
* Rewrite the ADR and waste the AEDR (of the entry being deleted).
****************************************************************************/
if (!sX(WriteADR64(CDF->fp,aOffset,
ADR_RECORD,&ADR,
ADR_NULL),&pStatus)) return pStatus;
if (!sX(WasteIR64(CDF,eOffset,AEDR.RecordSize),&pStatus)) return pStatus;
return pStatus;
}
/******************************************************************************
* PadUnRecords64.
* Pad all allocated records within the first/last record range. Note that
* in the case of sparse records some of the records may not be allocated (and
* should not be padded of course).
******************************************************************************/
STATICforIDL CDFstatus PadUnRecords64 (CDF, Var, firstRec, lastRec)
struct CDFstruct *CDF;
struct VarStruct *Var;
Int32 firstRec;
Int32 lastRec;
{
CDFstatus pStatus = CDF_OK; OFF_T offset; int how; void *buffer;
Int32 recNum, nRecords, toRec, lastRecInVVR; Logical found;
/****************************************************************************
* Pad the records.
* NOTE: Padding in a single-file CDF could be made more efficient by not
* allocating/freeing the pad buffer over and over...
****************************************************************************/
if (CDF->singleFile) {
/**************************************************************************
* Single-file...first determine the first allocated record to be padded.
**************************************************************************/
if (!sX(NextRecord64(CDF,Var->VDRoffset64,Var->zVar,
firstRec,&recNum,&found),&pStatus)) return pStatus;
if (!found) return pStatus;
/**************************************************************************
* While the first record to be padded is within the range...
**************************************************************************/
while (recNum <= lastRec) {
if (!sX(RecordByteOffset64(CDF,Var,recNum,
&offset),&pStatus)) return pStatus;
if (!sX(SearchForRecord64(CDF,Var->VDRoffset64,
Var->zVar,recNum,
NULL,&lastRecInVVR,
NULL,NULL),&pStatus)) return pStatus;
toRec = MINIMUM(lastRec,lastRecInVVR);
nRecords = toRec - recNum + 1;
if (!sX(BuildPadBuffer64(CDF,Var,nRecords,
&how,&buffer,TRUE),&pStatus)) return pStatus;
if (!sX(WritePadValues64(Var,CDF->fp,offset,
nRecords,how,buffer),&pStatus)) {
cdf_FreeMemory (buffer, NULL);
return pStatus;
}
cdf_FreeMemory (buffer, NULL);
recNum += nRecords;
/************************************************************************
* Determine the next `first' record to be padded.
************************************************************************/
if (!sX(NextRecord64(CDF,Var->VDRoffset64,Var->zVar,
recNum,&recNum,&found),&pStatus)) return pStatus;
if (!found) return pStatus;
}
}
else {
/**************************************************************************
* Multi-file...
**************************************************************************/
if (!sX(RecordByteOffset64(CDF,Var,
firstRec,
&offset),&pStatus)) return pStatus;
nRecords = lastRec - firstRec + 1;
if (!sX(BuildPadBuffer64(CDF,Var,nRecords,
&how,&buffer,TRUE),&pStatus)) return pStatus;
if (!sX(WritePadValues64(Var,Var->fp,offset,nRecords,how,buffer),&pStatus)) {
cdf_FreeMemory (buffer, NULL);
return pStatus;
}
cdf_FreeMemory (buffer, NULL);
}
return pStatus;
}
/******************************************************************************
* WritePadValues64.
* NOTE: It is assumed that the records are contiguous (in a single-file CDF)
* and that on a DOS machine the buffer does not exceed 64K bytes. It is also
* assumed that the values have already been encoded for the CDF.
******************************************************************************/
STATICforIDL CDFstatus WritePadValues64 (Var, fp, offset, nRecords, how, buffer)
struct VarStruct *Var;
vFILE *fp;
OFF_T offset;
Int32 nRecords;
int how;
void *buffer;
{
Int32 nBytes, nValues, recX, valueX;
/****************************************************************************
* Seek to desired offset.
****************************************************************************/
if (!SEEKv64(fp,offset,vSEEK_SET)) return VAR_WRITE_ERROR;
/****************************************************************************
* Write records...
****************************************************************************/
switch (how) {
case ALLrecordsATonce:
nBytes = nRecords * Var->NphyRecBytes;
if (!WRITEv64(buffer,(size_t)nBytes,1,fp)) return VAR_WRITE_ERROR;
break;
case ONErecordATaTIME:
for (recX = 0; recX < nRecords; recX++) {
if (!WRITEv64(buffer,(size_t)Var->NphyRecBytes,1,fp)) {
return VAR_WRITE_ERROR;
}
}
break;
case ONEvalueATaTIME:
nValues = nRecords * Var->NphyRecValues;
for (valueX = 0; valueX < nValues; valueX++) {
if (!WRITEv64(buffer,(size_t)Var->NvalueBytes,1,fp)) {
return VAR_WRITE_ERROR;
}
}
break;
}
return CDF_OK;
}
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