stream.c 46.7 KB
Newer Older
Uwe Schulzweida's avatar
Uwe Schulzweida committed
1
2
3
4
#if defined (HAVE_CONFIG_H)
#  include "config.h"
#endif

5
6
7
8
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600
#endif

Uwe Schulzweida's avatar
Uwe Schulzweida committed
9
10
#include <ctype.h>

11
#include "binary.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
12
#include "cdi.h"
13
#include "cdi_int.h"
14
#include "cdi_cksum.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
15
#include "cdf.h"
16
17
#include "dmemory.h"
#include "error.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
18
#include "stream_grb.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
19
20
21
22
23
#include "stream_cdf.h"
#include "stream_srv.h"
#include "stream_ext.h"
#include "stream_ieg.h"
#include "file.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
24
#include "cgribex.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
25
#include "gribapi.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
26
#include "vlist.h"
27
#include "serialize.h"
28
#include "resource_handle.h"
29
#include "resource_unpack.h"
30
31
#include "namespace.h"

32

33
static stream_t *stream_new_entry(int resH);
34
static void stream_delete_entry(stream_t *streamptr);
35
36
37
38
39
40
static int streamCompareP(void * streamptr1, void * streamptr2);
static void streamDestroyP(void * streamptr);
static void streamPrintP(void * streamptr, FILE * fp);
static int streamGetPackSize(void * streamptr, void *context);
static void streamPack(void * streamptr, void * buff, int size, int * position, void *context);
static int streamTxCode(void);
41

42
43
44
45
46
47
48
49
const resOps streamOps = {
  streamCompareP,
  streamDestroyP,
  streamPrintP,
  streamGetPackSize,
  streamPack,
  streamTxCode
};
Uwe Schulzweida's avatar
Uwe Schulzweida committed
50
51


52

53
54
static
int getByteorder(int byteswap)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
55
56
57
{
  int byteorder = -1;

58
  switch (HOST_ENDIANNESS)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
59
    {
60
61
62
63
64
65
66
67
68
69
    case CDI_BIGENDIAN:
      byteorder = byteswap ? CDI_LITTLEENDIAN : CDI_BIGENDIAN;
      break;
    case CDI_LITTLEENDIAN:
      byteorder = byteswap ? CDI_BIGENDIAN : CDI_LITTLEENDIAN;
      break;
    /* FIXME: does not currently adjust for PDP endianness */
    case CDI_PDPENDIAN:
    default:
      Error("unhandled endianness");
Uwe Schulzweida's avatar
Uwe Schulzweida committed
70
    }
71
  return byteorder;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
72
73
}

74
75
// used also in CDO
int cdiGetFiletype(const char *filename, int *byteorder)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
76
77
78
{
  int filetype = CDI_EUFTYPE;
  int swap = 0;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
79
  int version;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
80
  long recpos;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
81
  char buffer[8];
Uwe Schulzweida's avatar
Uwe Schulzweida committed
82

83
  int fileID = fileOpen(filename, "r");
Uwe Schulzweida's avatar
Uwe Schulzweida committed
84
85
86

  if ( fileID == CDI_UNDEFID )
    {
87
      if ( strncmp(filename, "http:", 5) == 0 || strncmp(filename, "https:", 6) == 0 )
88
	return CDI_FILETYPE_NC;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
89
      else
90
	return CDI_ESYSTEM;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
91
92
    }

93
  if ( fileRead(fileID, buffer, 8) != 8 ) return CDI_EUFTYPE;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
94
95
96

  fileRewind(fileID);

97
  if ( memcmp(buffer, "GRIB", 4) == 0 )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
98
    {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
99
100
101
      version = buffer[7];
      if ( version <= 1 )
	{
102
	  filetype = CDI_FILETYPE_GRB;
103
	  if ( CDI_Debug ) Message("found GRIB file = %s, version %d", filename, version);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
104
	}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
105
106
      else if ( version == 2 )
	{
107
	  filetype = CDI_FILETYPE_GRB2;
108
	  if ( CDI_Debug ) Message("found GRIB2 file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
109
	}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
110
    }
111
  else if ( memcmp(buffer, "CDF\001", 4) == 0 )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
112
    {
113
      filetype = CDI_FILETYPE_NC;
114
      if ( CDI_Debug ) Message("found CDF1 file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
115
    }
116
  else if ( memcmp(buffer, "CDF\002", 4) == 0 )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
117
    {
118
      filetype = CDI_FILETYPE_NC2;
119
      if ( CDI_Debug ) Message("found CDF2 file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
120
    }
121
  else if ( memcmp(buffer+1, "HDF", 3) == 0 )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
122
    {
123
      filetype = CDI_FILETYPE_NC4;
124
      if ( CDI_Debug ) Message("found HDF file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
125
126
127
128
    }
#if  defined  (HAVE_LIBSERVICE)
  else if ( srvCheckFiletype(fileID, &swap) )
    {
129
      filetype = CDI_FILETYPE_SRV;
130
      if ( CDI_Debug ) Message("found SRV file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
131
132
133
134
135
    }
#endif
#if  defined  (HAVE_LIBEXTRA)
  else if ( extCheckFiletype(fileID, &swap) )
    {
136
      filetype = CDI_FILETYPE_EXT;
137
      if ( CDI_Debug ) Message("found EXT file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
138
139
140
141
142
    }
#endif
#if  defined  (HAVE_LIBIEG)
  else if ( iegCheckFiletype(fileID, &swap) )
    {
143
      filetype = CDI_FILETYPE_IEG;
144
      if ( CDI_Debug ) Message("found IEG file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
145
146
    }
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
147
#if  defined  (HAVE_LIBCGRIBEX)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
148
  else if ( gribCheckSeek(fileID, &recpos, &version) == 0 )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
149
    {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
150
151
      if ( version <= 1 )
	{
152
	  filetype = CDI_FILETYPE_GRB;
153
	  if ( CDI_Debug ) Message("found seeked GRIB file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
154
	}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
155
      else if ( version == 2 )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
156
	{
157
	  filetype = CDI_FILETYPE_GRB2;
158
	  if ( CDI_Debug ) Message("found seeked GRIB2 file = %s", filename);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
159
	}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
160
    }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
161
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
162
163
164
165
166

  fileClose(fileID);

  *byteorder = getByteorder(swap);

167
  return filetype;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
168
169
170
171
172
173
174
175
}

/*
@Function  streamInqFiletype
@Title     Get the filetype

@Prototype int streamInqFiletype(int streamID)
@Parameter
Deike Kleberg's avatar
Deike Kleberg committed
176
    @Item  streamID  Stream ID, from a previous call to @fref{streamOpenRead} or @fref{streamOpenWrite}.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
177
178

@Description
179
The function @func{streamInqFiletype} returns the filetype of a stream.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
180
181

@Result
182
@func{streamInqFiletype} returns the type of the file format,
Uwe Schulzweida's avatar
Uwe Schulzweida committed
183
one of the set of predefined CDI file format types.
184
185
The valid CDI file format types are @func{CDI_FILETYPE_GRB}, @func{CDI_FILETYPE_GRB2}, @func{CDI_FILETYPE_NC}, @func{CDI_FILETYPE_NC2},
@func{CDI_FILETYPE_NC4}, @func{CDI_FILETYPE_NC4C}, @func{CDI_FILETYPE_SRV}, @func{CDI_FILETYPE_EXT} and @func{CDI_FILETYPE_IEG}.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
186
187
188
189
190

@EndFunction
*/
int streamInqFiletype(int streamID)
{
191
  stream_t *streamptr = stream_to_pointer(streamID);
192
  return streamptr->filetype;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
193
194
195
196
197
}


int getByteswap(int byteorder)
{
198
  int byteswap = -1;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
199

200
  switch (byteorder)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
201
    {
202
203
204
205
206
    case CDI_BIGENDIAN:
    case CDI_LITTLEENDIAN:
    case CDI_PDPENDIAN:
      byteswap = (HOST_ENDIANNESS != byteorder);
      break;
207
208
    case -1:
      break;
209
210
    default:
      Error("unexpected byteorder %d query!", byteorder);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
211
212
    }

213
  return byteswap;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
214
215
}

216
217
218
219
220
221
/*
@Function  streamDefByteorder
@Title     Define the byte order

@Prototype void streamDefByteorder(int streamID, int byteorder)
@Parameter
222
    @Item  streamID  Stream ID, from a previous call to @fref{streamOpenWrite}.
223
224
225
226
227
    @Item  byteorder The byte order of a dataset, one of the CDI constants @func{CDI_BIGENDIAN} and
                     @func{CDI_LITTLEENDIAN}.

@Description
The function @func{streamDefByteorder} defines the byte order of a binary dataset
228
with the file format type @func{CDI_FILETYPE_SRV}, @func{CDI_FILETYPE_EXT} or @func{CDI_FILETYPE_IEG}.
229
230
231

@EndFunction
*/
Uwe Schulzweida's avatar
Uwe Schulzweida committed
232
233
void streamDefByteorder(int streamID, int byteorder)
{
234
  stream_t *streamptr = stream_to_pointer(streamID);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
235
  streamptr->byteorder = byteorder;
236
  int filetype = streamptr->filetype;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
237
238
239
240

  switch (filetype)
    {
#if  defined  (HAVE_LIBSERVICE)
241
    case CDI_FILETYPE_SRV:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
242
      {
243
	srvrec_t *srvp = (srvrec_t*) streamptr->record->exsep;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
244
245
246
247
248
249
	srvp->byteswap = getByteswap(byteorder);

	break;
      }
#endif
#if  defined  (HAVE_LIBEXTRA)
250
    case CDI_FILETYPE_EXT:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
251
      {
252
	extrec_t *extp = (extrec_t*) streamptr->record->exsep;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
253
254
255
256
257
258
	extp->byteswap = getByteswap(byteorder);

	break;
      }
#endif
#if  defined  (HAVE_LIBIEG)
259
    case CDI_FILETYPE_IEG:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
260
      {
261
	iegrec_t *iegp = (iegrec_t*) streamptr->record->exsep;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
262
263
264
265
266
267
	iegp->byteswap = getByteswap(byteorder);

	break;
      }
#endif
    }
268
  reshSetStatus(streamID, &streamOps, RESH_DESYNC_IN_USE);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
269
270
}

271
272
273
274
275
276
/*
@Function  streamInqByteorder
@Title     Get the byte order

@Prototype int streamInqByteorder(int streamID)
@Parameter
Deike Kleberg's avatar
Deike Kleberg committed
277
    @Item  streamID  Stream ID, from a previous call to @fref{streamOpenRead} or @fref{streamOpenWrite}.
278
279
280

@Description
The function @func{streamInqByteorder} returns the byte order of a binary dataset
281
with the file format type @func{CDI_FILETYPE_SRV}, @func{CDI_FILETYPE_EXT} or @func{CDI_FILETYPE_IEG}.
282
283
284
285
286
287
288

@Result
@func{streamInqByteorder} returns the type of the byte order.
The valid CDI byte order types are @func{CDI_BIGENDIAN} and @func{CDI_LITTLEENDIAN}

@EndFunction
*/
Uwe Schulzweida's avatar
Uwe Schulzweida committed
289
290
int streamInqByteorder(int streamID)
{
291
  stream_t *streamptr = stream_to_pointer(streamID);
292
  return streamptr->byteorder;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
293
294
295
}


296
const char *streamFilesuffix(int filetype)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
297
{
298
  // static char *fileSuffix[] = {"", ".grb", ".g2", ".nc", ".nc", ".nc4", ".nc4", ".srv", ".ext", ".ieg"};
299
300
301
302
303
  /* note: the 2nd dimenstion of the fileSuffix array must be equal to or
   * larger than the length of the longest suffix (dot and \0 terminator
   * included) */
  static const char fileSuffix[][5] = {"", ".grb", ".grb", ".nc", ".nc", ".nc", ".nc", ".srv", ".ext", ".ieg"};
  int size = (int)(sizeof(fileSuffix)/sizeof(fileSuffix[0]));
Uwe Schulzweida's avatar
Uwe Schulzweida committed
304
305

  if ( filetype > 0 && filetype < size )
306
    return fileSuffix[filetype];
Uwe Schulzweida's avatar
Uwe Schulzweida committed
307
  else
308
    return fileSuffix[0];
Uwe Schulzweida's avatar
Uwe Schulzweida committed
309
310
311
}


312
const char *streamFilename(int streamID)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
313
{
314
  stream_t *streamptr = stream_to_pointer(streamID);
315
  return streamptr->filename;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
316
317
}

318
static
319
long cdiInqTimeSize(int streamID)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
320
321
{
  int tsID = 0, nrecs;
322
  stream_t *streamptr = stream_to_pointer(streamID);
323
  long ntsteps = streamptr->ntsteps;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
324

325
  if ( ntsteps == (long)CDI_UNDEFID )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
326
    while ( (nrecs = streamInqTimestep(streamID, tsID++)) )
327
      ntsteps = streamptr->ntsteps;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
328

329
  return ntsteps;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
330
331
}

332
static
333
int cdiInqContents(stream_t *streamptr)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
334
335
{
  int status = 0;
Thomas Jahns's avatar
Thomas Jahns committed
336
  int filetype = streamptr->filetype;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
337
338
339
340

  switch (filetype)
    {
#if  defined  (HAVE_LIBGRIB)
341
342
    case CDI_FILETYPE_GRB:
    case CDI_FILETYPE_GRB2:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
343
      {
344
        status = grbInqContents(streamptr);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
345
346
347
	break;
      }
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
348
#if  defined  (HAVE_LIBSERVICE)
349
    case CDI_FILETYPE_SRV:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
350
      {
351
        status = srvInqContents(streamptr);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
352
353
354
355
	break;
      }
#endif
#if  defined  (HAVE_LIBEXTRA)
356
    case CDI_FILETYPE_EXT:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
357
      {
358
        status = extInqContents(streamptr);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
359
360
361
362
	break;
      }
#endif
#if  defined  (HAVE_LIBIEG)
363
    case CDI_FILETYPE_IEG:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
364
      {
365
        status = iegInqContents(streamptr);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
366
367
368
369
	break;
      }
#endif
#if  defined  (HAVE_LIBNETCDF)
370
371
372
373
    case CDI_FILETYPE_NC:
    case CDI_FILETYPE_NC2:
    case CDI_FILETYPE_NC4:
    case CDI_FILETYPE_NC4C:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
374
      {
375
        status = cdfInqContents(streamptr);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
376
377
378
379
380
381
	break;
      }
#endif
    default:
      {
	if ( CDI_Debug )
382
	  Message("%s support not compiled in!", strfiletype(filetype));
Uwe Schulzweida's avatar
Uwe Schulzweida committed
383
384

	status = CDI_ELIBNAVAIL;
385
        break;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
386
387
388
389
390
      }
    }

  if ( status == 0 )
    {
Thomas Jahns's avatar
Thomas Jahns committed
391
392
393
      int vlistID = streamptr->vlistID;
      int taxisID = vlistInqTaxis(vlistID);
      if ( taxisID != CDI_UNDEFID )
394
395
396
397
398
        {
          taxis_t *taxisptr1 = &streamptr->tsteps[0].taxis;
          taxis_t *taxisptr2 = taxisPtr(taxisID);
          ptaxisCopy(taxisptr2, taxisptr1);
        }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
399
400
    }

401
  return status;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
402
403
}

404
int cdiStreamOpenDefaultDelegate(const char *filename, char filemode,
405
406
                                 int filetype, stream_t *streamptr,
                                 int recordBufIsToBeCreated)
407
408
409
{
  int fileID;
  switch (filetype)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
410
411
    {
#if  defined  (HAVE_LIBGRIB)
412
    case CDI_FILETYPE_GRB:
413
#if  defined  (HAVE_LIBGRIB_API)
414
    case CDI_FILETYPE_GRB2:
415
#endif
416
      {
417
#ifndef __cplusplus
418
        fileID = gribOpen(filename, (char [2]){filemode, 0});
419
420
421
422
#else
        char temp[2] = { filemode, 0 };
        fileID = gribOpen(filename, temp);
#endif
423
        if ( fileID < 0 ) fileID = CDI_ESYSTEM;
424
425
        if (recordBufIsToBeCreated)
          {
426
            streamptr->record = (Record *) Malloc(sizeof(Record));
427
428
            streamptr->record->buffer = NULL;
          }
429
430
        break;
      }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
431
432
#endif
#if  defined  (HAVE_LIBSERVICE)
433
    case CDI_FILETYPE_SRV:
434
      {
435
#ifndef __cplusplus
436
        fileID = fileOpen(filename, (char [2]){filemode, 0});
437
438
439
440
#else
        char temp[2] = { filemode, 0 };
        fileID = fileOpen(filename, temp);
#endif
441
        if ( fileID < 0 ) fileID = CDI_ESYSTEM;
442
443
        if (recordBufIsToBeCreated)
          {
444
            streamptr->record = (Record *) Malloc(sizeof(Record));
445
            streamptr->record->buffer = NULL;
446
            streamptr->record->exsep  = srvNew();
447
          }
448
449
        break;
      }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
450
451
#endif
#if  defined  (HAVE_LIBEXTRA)
452
    case CDI_FILETYPE_EXT:
453
      {
454
#ifndef __cplusplus
455
        fileID = fileOpen(filename, (char [2]){filemode, 0});
456
457
458
459
460
#else
        char temp[2] = { filemode, 0 };
        fileID = fileOpen(filename, temp);
#endif

461
        if ( fileID < 0 ) fileID = CDI_ESYSTEM;
462
463
        if (recordBufIsToBeCreated)
          {
464
            streamptr->record = (Record *) Malloc(sizeof(Record));
465
            streamptr->record->buffer = NULL;
466
            streamptr->record->exsep  = extNew();
467
          }
468
469
        break;
      }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
470
471
#endif
#if  defined  (HAVE_LIBIEG)
472
    case CDI_FILETYPE_IEG:
473
      {
474
#ifndef __cplusplus
475
        fileID = fileOpen(filename, (char [2]){filemode, 0});
476
477
478
479
#else
        char temp[2] = { filemode, 0 };
        fileID = fileOpen(filename, temp);
#endif
480
        if ( fileID < 0 ) fileID = CDI_ESYSTEM;
481
482
        if (recordBufIsToBeCreated)
          {
483
            streamptr->record = (Record *) Malloc(sizeof(Record));
484
            streamptr->record->buffer = NULL;
485
            streamptr->record->exsep  = iegNew();
486
          }
487
488
        break;
      }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
489
490
#endif
#if  defined  (HAVE_LIBNETCDF)
491
    case CDI_FILETYPE_NC:
492
      {
493
#ifndef __cplusplus
494
        fileID = cdfOpen(filename, (char [2]){filemode, 0});
495
496
497
498
#else
        char temp[2] = { filemode, 0 };
        fileID = cdfOpen(filename, temp);
#endif
499
500
        break;
      }
501
    case CDI_FILETYPE_NC2:
502
      {
503
#ifndef __cplusplus
504
        fileID = cdfOpen64(filename, (char [2]){filemode, 0});
505
506
507
508
#else
        char temp[2] = { filemode, 0 };
        fileID = cdfOpen64(filename, temp);
#endif
509
510
        break;
      }
511
512
    case CDI_FILETYPE_NC4:
    case CDI_FILETYPE_NC4C:
513
      {
514
#ifndef __cplusplus
515
        fileID = cdf4Open(filename, (char [2]){filemode, 0}, &filetype);
516
517
518
519
#else
        char temp[2] = { filemode, 0 };
        fileID = cdf4Open(filename, temp, &filetype);
#endif
520
        break;
521
522
523
524
525
      }
#endif
    default:
      {
        if ( CDI_Debug ) Message("%s support not compiled in!", strfiletype(filetype));
526
        return CDI_ELIBNAVAIL;
527
      }
528
    }
529
530
531

  streamptr->filetype = filetype;

532
533
534
535
  return fileID;
}


536
int streamOpenID(const char *filename, char filemode, int filetype, int resH)
537
538
{
  if ( CDI_Debug )
539
    Message("Open %s mode %c file %s", strfiletype(filetype), filemode,
540
            filename?filename:"(NUL)");
541

542
  if ( ! filename || filetype < 0 ) return CDI_EINVAL;
543

544
545
  stream_t *streamptr = stream_new_entry(resH);
  int streamID = CDI_ESYSTEM;
546

547
548
549
550
  int (*streamOpenDelegate)(const char *filename, char filemode,
                            int filetype, stream_t *streamptr, int recordBufIsToBeCreated)
    = (int (*)(const char *, char, int, stream_t *, int))
    namespaceSwitchGet(NSSWITCH_STREAM_OPEN_BACKEND).func;
551

552
  int fileID = streamOpenDelegate(filename, filemode, filetype, streamptr, 1);
553
  if ( fileID < 0 )
Uwe Schulzweida's avatar
Uwe Schulzweida committed
554
555
556
557
558
    {
      streamID = fileID;
    }
  else
    {
559
560
      streamID = streamptr->self;
      if ( streamID < 0 ) return CDI_ELIMIT;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
561

562
      streamptr->filemode = filemode;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
563
564
      streamptr->filename = strdupx(filename);
      streamptr->fileID   = fileID;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
565

566
      if ( filemode == 'r' )
567
568
        {
          int vlistID = vlistCreate();
569
          if ( vlistID < 0 ) return CDI_ELIMIT;
570
571
572
573

          cdiVlistMakeInternal(vlistID);
          streamptr->vlistID = vlistID;
          /* cdiReadByteorder(streamID); */
574
          int status = cdiInqContents(streamptr);
575
576
577
578
579
580
581
582
583
584
          if ( status < 0 )
            {
              streamID = status;
            }
          else
            {
              vlist_t *vlistptr = vlist_to_pointer(streamptr->vlistID);
              vlistptr->ntsteps = streamptr->ntsteps;
              cdiVlistMakeImmutable(vlistID);
            }
585
        }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
586
    }
587

588
589
590
591
592
593
594
  if ( streamID < 0 )
    {
      Free(streamptr->record);
      stream_delete_entry(streamptr);
    }

  return streamID;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
595
596
}

597
598
static
int streamOpen(const char *filename, const char *filemode, int filetype)
599
{
600
601
  if ( !filemode || strlen(filemode) != 1 ) return CDI_EINVAL;
  return streamOpenID(filename, (char)tolower(filemode[0]), filetype, CDI_UNDEFID);
602
}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
603

604
605
static
int streamOpenA(const char *filename, const char *filemode, int filetype)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
606
607
{
  if ( CDI_Debug )
608
    Message("Open %s file (mode=%c); filename: %s", strfiletype(filetype), (int) *filemode, filename);
609
  if ( CDI_Debug ) printf("streamOpenA: %s\n", filename); // seg fault without this line on thunder/squall with "cdo cat x y"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
610

611
  if ( ! filename || ! filemode || filetype < 0 ) return CDI_EINVAL;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
612

613
614
615
  stream_t *streamptr = stream_new_entry(CDI_UNDEFID);
  int fileID = CDI_UNDEFID;

616
  {
617
    int (*streamOpenDelegate)(const char *filename, char filemode,
618
                              int filetype, stream_t *streamptr, int recordBufIsToBeCreated)
Thomas Jahns's avatar
Thomas Jahns committed
619
      = (int (*)(const char *, char, int, stream_t *, int))
620
      namespaceSwitchGet(NSSWITCH_STREAM_OPEN_BACKEND).func;
621

622
    fileID = streamOpenDelegate(filename, 'r', filetype, streamptr, 1);
623
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
624

625
  if ( fileID == CDI_UNDEFID || fileID == CDI_ELIBNAVAIL || fileID == CDI_ESYSTEM ) return fileID;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
626

627
  int streamID = streamptr->self;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
628

629
630
631
632
633
  streamptr->filemode = tolower(*filemode);
  streamptr->filename = strdupx(filename);
  streamptr->fileID   = fileID;

  streamptr->vlistID = vlistCreate();
634
  cdiVlistMakeInternal(streamptr->vlistID);
635
  /* cdiReadByteorder(streamID); */
636
  int status = cdiInqContents(streamptr);
637
  if ( status < 0 ) return status;
638
  vlist_t *vlistptr = vlist_to_pointer(streamptr->vlistID);
639
  vlistptr->ntsteps = (int)cdiInqTimeSize(streamID);
640
  if(!strcmp(filemode, "r")) cdiVlistMakeImmutable(streamptr->vlistID);
641

642
643
  {
    void (*streamCloseDelegate)(stream_t *streamptr, int recordBufIsToBeDeleted)
644
645
      = (void (*)(stream_t *, int))
      namespaceSwitchGet(NSSWITCH_STREAM_CLOSE_BACKEND).func;
646

647
648
    streamCloseDelegate(streamptr, 0);
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
649
650
651
652

  switch (filetype)
    {
#if  defined  (HAVE_LIBGRIB)
653
    case CDI_FILETYPE_GRB:
654
#if  defined  (HAVE_LIBGRIB_API)
655
    case CDI_FILETYPE_GRB2:
656
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
657
658
      {
        fileID = gribOpen(filename, filemode);
659
        if ( fileID != CDI_UNDEFID ) gribContainersNew(streamptr);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
660
661
662
663
	break;
      }
#endif
#if  defined  (HAVE_LIBSERVICE)
664
    case CDI_FILETYPE_SRV:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
665
666
667
668
669
670
      {
        fileID = fileOpen(filename, filemode);
	break;
      }
#endif
#if  defined  (HAVE_LIBEXTRA)
671
    case CDI_FILETYPE_EXT:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
672
673
674
675
676
677
      {
        fileID = fileOpen(filename, filemode);
	break;
      }
#endif
#if  defined  (HAVE_LIBIEG)
678
    case CDI_FILETYPE_IEG:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
679
680
681
682
683
684
      {
        fileID = fileOpen(filename, filemode);
	break;
      }
#endif
#if  defined  (HAVE_LIBNETCDF)
685
    case CDI_FILETYPE_NC:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
686
687
      {
	fileID = cdfOpen(filename, filemode);
688
	streamptr->ncmode = 2;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
689
690
	break;
      }
691
    case CDI_FILETYPE_NC2:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
692
693
      {
	fileID = cdfOpen64(filename, filemode);
694
	streamptr->ncmode = 2;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
695
696
	break;
      }
697
698
    case CDI_FILETYPE_NC4:
    case CDI_FILETYPE_NC4C:
699
      {
Deike Kleberg's avatar
Deike Kleberg committed
700
	fileID = cdf4Open(filename, filemode, &filetype);
701
	streamptr->ncmode = 2;
702
703
	break;
      }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
704
705
706
#endif
    default:
      {
707
	if ( CDI_Debug ) Message("%s support not compiled in!", strfiletype(filetype));
708
	return CDI_ELIBNAVAIL;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
709
710
711
712
713
714
      }
    }

  if ( fileID == CDI_UNDEFID )
    streamID = CDI_UNDEFID;
  else
715
    streamptr->fileID = fileID;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
716

717
  return streamID;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
718
719
720
721
}

/*
@Function  streamOpenRead
Uwe Schulzweida's avatar
Uwe Schulzweida committed
722
@Title     Open a dataset for reading
Uwe Schulzweida's avatar
Uwe Schulzweida committed
723

Uwe Schulzweida's avatar
Uwe Schulzweida committed
724
@Prototype int streamOpenRead(const char *path)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
725
@Parameter
Deike Kleberg's avatar
Deike Kleberg committed
726
    @Item  path  The name of the dataset to be read.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
727
728

@Description
729
The function @func{streamOpenRead} opens an existing dataset for reading.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
730
731

@Result
732
Upon successful completion @func{streamOpenRead} returns an identifier to the
Uwe Schulzweida's avatar
Uwe Schulzweida committed
733
734
735
736
open stream. Otherwise, a negative number with the error status is returned.

@Errors
@List
Deike Kleberg's avatar
Deike Kleberg committed
737
738
739
740
   @Item  CDI_ESYSTEM     Operating system error.
   @Item  CDI_EINVAL      Invalid argument.
   @Item  CDI_EUFILETYPE  Unsupported file type.
   @Item  CDI_ELIBNAVAIL  Library support not compiled in.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
741
742
743
@EndList

@Example
Uwe Schulzweida's avatar
Uwe Schulzweida committed
744
Here is an example using @func{streamOpenRead} to open an existing NetCDF
745
file named @func{foo.nc} for reading:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
746
747

@Source
Uwe Schulzweida's avatar
Uwe Schulzweida committed
748
#include "cdi.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
749
750
751
752
753
754
755
756
757
   ...
int streamID;
   ...
streamID = streamOpenRead("foo.nc");
if ( streamID < 0 ) handle_error(streamID);
   ...
@EndSource
@EndFunction
*/
Thomas Jahns's avatar
Thomas Jahns committed
758
int streamOpenRead(const char *filename)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
759
{
760
761
  cdiInitialize();

762
  int byteorder = 0;
763
  int filetype = cdiGetFiletype(filename, &byteorder);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
764

765
  if ( filetype < 0 ) return filetype;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
766

Thomas Jahns's avatar
Thomas Jahns committed
767
  int streamID = streamOpen(filename, "r", filetype);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
768

Uwe Schulzweida's avatar
Uwe Schulzweida committed
769
770
  if ( streamID >= 0 )
    {
771
      stream_t *streamptr = stream_to_pointer(streamID);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
772
773
      streamptr->byteorder = byteorder;
    }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
774

775
  return streamID;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
776
777
778
779
780
}


int streamOpenAppend(const char *filename)
{
781
782
  cdiInitialize();

783
  int byteorder = 0;
784
  int filetype = cdiGetFiletype(filename, &byteorder);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
785

786
  if ( filetype < 0 ) return filetype;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
787

788
  int streamID = streamOpenA(filename, "a", filetype);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
789

790
791
  if ( streamID >= 0 )
    {
792
      stream_t *streamptr = stream_to_pointer(streamID);
793
794
      streamptr->byteorder = byteorder;
    }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
795

796
  return streamID;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
797
798
799
800
}

/*
@Function  streamOpenWrite
Uwe Schulzweida's avatar
Uwe Schulzweida committed
801
@Title     Create a new dataset
Uwe Schulzweida's avatar
Uwe Schulzweida committed
802

Uwe Schulzweida's avatar
Uwe Schulzweida committed
803
@Prototype int streamOpenWrite(const char *path, int filetype)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
804
@Parameter
Deike Kleberg's avatar
Deike Kleberg committed
805
    @Item  path      The name of the new dataset.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
806
    @Item  filetype  The type of the file format, one of the set of predefined CDI file format types.
807
808
809
                     The valid CDI file format types are @func{CDI_FILETYPE_GRB}, @func{CDI_FILETYPE_GRB2}, @func{CDI_FILETYPE_NC},
                     @func{CDI_FILETYPE_NC2}, @func{CDI_FILETYPE_NC4}, @func{CDI_FILETYPE_NC4C}, @func{CDI_FILETYPE_SRV},
                     @func{CDI_FILETYPE_EXT} and @func{CDI_FILETYPE_IEG}.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
810
811

@Description
812
The function @func{streamOpenWrite} creates a new datset.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
813
@Result
814
Upon successful completion @func{streamOpenWrite} returns an identifier to the
Uwe Schulzweida's avatar
Uwe Schulzweida committed
815
816
817
818
open stream. Otherwise, a negative number with the error status is returned.

@Errors
@List
Deike Kleberg's avatar
Deike Kleberg committed
819
820
821
822
   @Item  CDI_ESYSTEM     Operating system error.
   @Item  CDI_EINVAL      Invalid argument.
   @Item  CDI_EUFILETYPE  Unsupported file type.
   @Item  CDI_ELIBNAVAIL  Library support not compiled in.
Uwe Schulzweida's avatar
Uwe Schulzweida committed
823
824
825
@EndList

@Example
Uwe Schulzweida's avatar
Uwe Schulzweida committed
826
Here is an example using @func{streamOpenWrite} to create a new NetCDF file named @func{foo.nc} for writing:
Uwe Schulzweida's avatar
Uwe Schulzweida committed
827
828

@Source
Uwe Schulzweida's avatar
Uwe Schulzweida committed
829
#include "cdi.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
830
831
832
   ...
int streamID;
   ...
833
streamID = streamOpenWrite("foo.nc", CDI_FILETYPE_NC);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
834
835
836
837
838
839
840
if ( streamID < 0 ) handle_error(streamID);
   ...
@EndSource
@EndFunction
*/
int streamOpenWrite(const char *filename, int filetype)
{
841
842
  cdiInitialize();

843
  return streamOpen(filename, "w", filetype);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
844
845
}

846
847
848
849
850
851
static
void streamDefaultValue ( stream_t * streamptr )
{
  streamptr->self              = CDI_UNDEFID;
  streamptr->accesstype        = CDI_UNDEFID;
  streamptr->accessmode        = 0;
852
  streamptr->filetype          = CDI_FILETYPE_UNDEF;
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
  streamptr->byteorder         = CDI_UNDEFID;
  streamptr->fileID            = 0;
  streamptr->filemode          = 0;
  streamptr->numvals           = 0;
  streamptr->filename          = NULL;
  streamptr->record            = NULL;
  streamptr->varsAllocated     = 0;
  streamptr->nrecs             = 0;
  streamptr->nvars             = 0;
  streamptr->vars              = NULL;
  streamptr->ncmode            = 0;
  streamptr->curTsID           = CDI_UNDEFID;
  streamptr->rtsteps           = 0;
  streamptr->ntsteps           = CDI_UNDEFID;
  streamptr->tsteps            = NULL;
  streamptr->tstepsTableSize   = 0;
  streamptr->tstepsNextID      = 0;
  streamptr->historyID         = CDI_UNDEFID;
  streamptr->vlistID           = CDI_UNDEFID;
  streamptr->globalatts        = 0;
  streamptr->localatts         = 0;
  streamptr->unreduced         = cdiDataUnreduced;
  streamptr->sortname          = cdiSortName;
  streamptr->have_missval      = cdiHaveMissval;
877
  streamptr->comptype          = CDI_COMPRESS_NONE;
878
879
880
881
  streamptr->complevel         = 0;

  basetimeInit(&streamptr->basetime);

Uwe Schulzweida's avatar
Uwe Schulzweida committed
882
#ifdef HAVE_LIBNETCDF
883
  int i;
884
885
  for ( i = 0; i < MAX_GRIDS_PS; i++ ) streamptr->xdimID[i]  = CDI_UNDEFID;
  for ( i = 0; i < MAX_GRIDS_PS; i++ ) streamptr->ydimID[i]  = CDI_UNDEFID;
886
  for ( i = 0; i < MAX_ZAXES_PS; i++ ) streamptr->zaxisID[i]  = CDI_UNDEFID;
887
  for ( i = 0; i < MAX_ZAXES_PS; i++ ) streamptr->nczvarID[i] = CDI_UNDEFID;
888
889

  streamptr->ncgrid            = NULL;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
890
891
892
893
894

  streamptr->vct.ilev          = 0;
  streamptr->vct.mlev          = 0;
  streamptr->vct.ilevID        = CDI_UNDEFID;
  streamptr->vct.mlevID        = CDI_UNDEFID;
895
#endif
896
897
898
899

  streamptr->gribContainers    = NULL;
}

900
901
static
stream_t *stream_new_entry(int resH)
902
903
904
{
  cdiInitialize(); /* ***************** make MT version !!! */

905
  stream_t *streamptr = (stream_t *) Malloc(sizeof(stream_t));
906
  streamDefaultValue ( streamptr );
907

908
909
910
911
912
913
914
  if (resH == CDI_UNDEFID)
    streamptr->self = reshPut(streamptr, &streamOps);
  else
    {
      streamptr->self = resH;
      reshReplace(resH, streamptr, &streamOps);
    }
915
916
917
918
919

  return streamptr;
}


920
void cdiStreamCloseDefaultDelegate(stream_t *streamptr, int recordBufIsToBeDeleted)
921
922
923
924
925
926
927
928
929
{
  int fileID   = streamptr->fileID;
  int filetype = streamptr->filetype;
  if ( fileID == CDI_UNDEFID )
    Warning("File %s not open!", streamptr->filename);
  else
    switch (filetype)
      {
#if  defined  (HAVE_LIBGRIB)
930
931
      case CDI_FILETYPE_GRB:
      case CDI_FILETYPE_GRB2:
932
933
        {
          gribClose(fileID);
934
          if ( recordBufIsToBeDeleted ) gribContainersDelete(streamptr);
935
936
937
938
          break;
        }
#endif
#if  defined  (HAVE_LIBSERVICE)