ovsdb/ovsdb-idlc.in

   1 #! @PYTHON@
   2
   3 import getopt
   4 import os
   5 import re
   6 import sys
   7
   8 import ovs.json
   9 import ovs.db.error
  10 import ovs.db.schema
  11
  12 argv0 = sys.argv[0]
  13
  14 def parseSchema(filename):
  15     return ovs.db.schema.IdlSchema.from_json(ovs.json.from_file(filename))
  16
  17 def annotateSchema(schemaFile, annotationFile):
  18     schemaJson = ovs.json.from_file(schemaFile)
  19     execfile(annotationFile, globals(), {"s": schemaJson})
  20     ovs.json.to_stream(schemaJson, sys.stdout)
  21     sys.stdout.write('\n')
  22
  23 def constify(cType, const):
  24     if (const and cType.endswith('*') and not cType.endswith('**')):
  25         return 'const %s' % cType
  26     else:
  27         return cType
  28
  29 def cMembers(prefix, columnName, column, const):
  30     type = column.type
  31
  32     if type.is_smap():
  33         return [{'name': columnName,
  34                  'type': 'struct smap ',
  35                  'comment': ''}]
  36
  37     if type.n_min == 1 and type.n_max == 1:
  38         singleton = True
  39         pointer = ''
  40     else:
  41         singleton = False
  42         if type.is_optional_pointer():
  43             pointer = ''
  44         else:
  45             pointer = '*'
  46
  47     if type.value:
  48         key = {'name': "key_%s" % columnName,
  49                'type': constify(type.key.toCType(prefix) + pointer, const),
  50                'comment': ''}
  51         value = {'name': "value_%s" % columnName,
  52                  'type': constify(type.value.toCType(prefix) + pointer, const),
  53                  'comment': ''}
  54         members = [key, value]
  55     else:
  56         m = {'name': columnName,
  57              'type': constify(type.key.toCType(prefix) + pointer, const),
  58              'comment': type.cDeclComment()}
  59         members = [m]
  60
  61     if not singleton and not type.is_optional_pointer():
  62         members.append({'name': 'n_%s' % columnName,
  63                         'type': 'size_t ',
  64                         'comment': ''})
  65     return members
  66
  67 def printCIDLHeader(schemaFile):
  68     schema = parseSchema(schemaFile)
  69     prefix = schema.idlPrefix
  70     print '''\
  71 /* Generated automatically -- do not modify!    -*- buffer-read-only: t -*- */
  72
  73 #ifndef %(prefix)sIDL_HEADER
  74 #define %(prefix)sIDL_HEADER 1
  75
  76 #include <stdbool.h>
  77 #include <stddef.h>
  78 #include <stdint.h>
  79 #include "ovsdb-data.h"
  80 #include "ovsdb-idl-provider.h"
  81 #include "smap.h"
  82 #include "uuid.h"''' % {'prefix': prefix.upper()}
  83
  84     for tableName, table in sorted(schema.tables.iteritems()):
  85         structName = "%s%s" % (prefix, tableName.lower())
  86
  87         print "\f"
  88         print "/* %s table. */" % tableName
  89         print "struct %s {" % structName
  90         print "\tstruct ovsdb_idl_row header_;"
  91         for columnName, column in sorted(table.columns.iteritems()):
  92             print "\n\t/* %s column. */" % columnName
  93             for member in cMembers(prefix, columnName, column, False):
  94                 print "\t%(type)s%(name)s;%(comment)s" % member
  95         print "};"
  96
  97         # Column indexes.
  98         printEnum(["%s_COL_%s" % (structName.upper(), columnName.upper())
  99                    for columnName in sorted(table.columns)]
 100                   + ["%s_N_COLUMNS" % structName.upper()])
 101
 102         print
 103         for columnName in table.columns:
 104             print "#define %(s)s_col_%(c)s (%(s)s_columns[%(S)s_COL_%(C)s])" % {
 105                 's': structName,
 106                 'S': structName.upper(),
 107                 'c': columnName,
 108                 'C': columnName.upper()}
 109
 110         print "\nextern struct ovsdb_idl_column %s_columns[%s_N_COLUMNS];" % (structName, structName.upper())
 111
 112         print '''
 113 const struct %(s)s *%(s)s_get_for_uuid(const struct ovsdb_idl *, const struct uuid *);
 114 const struct %(s)s *%(s)s_first(const struct ovsdb_idl *);
 115 const struct %(s)s *%(s)s_next(const struct %(s)s *);
 116 #define %(S)s_FOR_EACH(ROW, IDL) \\
 117         for ((ROW) = %(s)s_first(IDL); \\
 118              (ROW); \\
 119              (ROW) = %(s)s_next(ROW))
 120 #define %(S)s_FOR_EACH_SAFE(ROW, NEXT, IDL) \\
 121         for ((ROW) = %(s)s_first(IDL); \\
 122              (ROW) ? ((NEXT) = %(s)s_next(ROW), 1) : 0; \\
 123              (ROW) = (NEXT))
 124
 125 void %(s)s_init(struct %(s)s *);
 126 void %(s)s_delete(const struct %(s)s *);
 127 struct %(s)s *%(s)s_insert(struct ovsdb_idl_txn *);
 128 ''' % {'s': structName, 'S': structName.upper()}
 129
 130         for columnName, column in sorted(table.columns.iteritems()):
 131             print 'void %(s)s_verify_%(c)s(const struct %(s)s *);' % {'s': structName, 'c': columnName}
 132
 133         print """
 134 /* Functions for fetching columns as \"struct ovsdb_datum\"s.  (This is
 135    rarely useful.  More often, it is easier to access columns by using
 136    the members of %(s)s directly.) */""" % {'s': structName}
 137         for columnName, column in sorted(table.columns.iteritems()):
 138             if column.type.value:
 139                 valueParam = ', enum ovsdb_atomic_type value_type'
 140             else:
 141                 valueParam = ''
 142             print 'const struct ovsdb_datum *%(s)s_get_%(c)s(const struct %(s)s *, enum ovsdb_atomic_type key_type%(v)s);' % {
 143                 's': structName, 'c': columnName, 'v': valueParam}
 144
 145         print
 146         for columnName, column in sorted(table.columns.iteritems()):
 147             print 'void %(s)s_set_%(c)s(const struct %(s)s *,' % {'s': structName, 'c': columnName},
 148             if column.type.is_smap():
 149                 args = ['const struct smap *']
 150             else:
 151                 args = ['%(type)s%(name)s' % member for member
 152                         in cMembers(prefix, columnName, column, True)]
 153             print '%s);' % ', '.join(args)
 154
 155         print
 156
 157     # Table indexes.
 158     printEnum(["%sTABLE_%s" % (prefix.upper(), tableName.upper()) for tableName in sorted(schema.tables)] + ["%sN_TABLES" % prefix.upper()])
 159     print
 160     for tableName in schema.tables:
 161         print "#define %(p)stable_%(t)s (%(p)stable_classes[%(P)sTABLE_%(T)s])" % {
 162             'p': prefix,
 163             'P': prefix.upper(),
 164             't': tableName.lower(),
 165             'T': tableName.upper()}
 166     print "\nextern struct ovsdb_idl_table_class %stable_classes[%sN_TABLES];" % (prefix, prefix.upper())
 167
 168     print "\nextern struct ovsdb_idl_class %sidl_class;" % prefix
 169     print "\nvoid %sinit(void);" % prefix
 170
 171     print "\nconst char * %sget_db_version(void);" % prefix
 172     print "\n#endif /* %(prefix)sIDL_HEADER */" % {'prefix': prefix.upper()}
 173
 174 def printEnum(members):
 175     if len(members) == 0:
 176         return
 177
 178     print "\nenum {";
 179     for member in members[:-1]:
 180         print "    %s," % member
 181     print "    %s" % members[-1]
 182     print "};"
 183
 184 def printCIDLSource(schemaFile):
 185     schema = parseSchema(schemaFile)
 186     prefix = schema.idlPrefix
 187     print '''\
 188 /* Generated automatically -- do not modify!    -*- buffer-read-only: t -*- */
 189
 190 #include <config.h>
 191 #include %s
 192 #include <limits.h>
 193 #include "ovs-thread.h"
 194 #include "ovsdb-data.h"
 195 #include "ovsdb-error.h"
 196 #include "util.h"
 197
 198 #ifdef __CHECKER__
 199 /* Sparse dislikes sizeof(bool) ("warning: expression using sizeof bool"). */
 200 enum { sizeof_bool = 1 };
 201 #else
 202 enum { sizeof_bool = sizeof(bool) };
 203 #endif
 204
 205 static bool inited;
 206 ''' % schema.idlHeader
 207
 208     # Cast functions.
 209     for tableName, table in sorted(schema.tables.iteritems()):
 210         structName = "%s%s" % (prefix, tableName.lower())
 211         print '''
 212 static struct %(s)s *
 213 %(s)s_cast(const struct ovsdb_idl_row *row)
 214 {
 215     return row ? CONTAINER_OF(row, struct %(s)s, header_) : NULL;
 216 }\
 217 ''' % {'s': structName}
 218
 219
 220     for tableName, table in sorted(schema.tables.iteritems()):
 221         structName = "%s%s" % (prefix, tableName.lower())
 222         print "\f"
 223         print "/* %s table. */" % (tableName)
 224
 225         # Parse functions.
 226         for columnName, column in sorted(table.columns.iteritems()):
 227             print '''
 228 static void
 229 %(s)s_parse_%(c)s(struct ovsdb_idl_row *row_, const struct ovsdb_datum *datum)
 230 {
 231     struct %(s)s *row = %(s)s_cast(row_);''' % {'s': structName,
 232                                                 'c': columnName}
 233             type = column.type
 234             if type.value:
 235                 keyVar = "row->key_%s" % columnName
 236                 valueVar = "row->value_%s" % columnName
 237             else:
 238                 keyVar = "row->%s" % columnName
 239                 valueVar = None
 240
 241             if type.is_smap():
 242                 print "    size_t i;"
 243                 print
 244                 print "    ovs_assert(inited);"
 245                 print "    smap_init(&row->%s);" % columnName
 246                 print "    for (i = 0; i < datum->n; i++) {"
 247                 print "        smap_add(&row->%s," % columnName
 248                 print "                 datum->keys[i].string,"
 249                 print "                 datum->values[i].string);"
 250                 print "    }"
 251             elif (type.n_min == 1 and type.n_max == 1) or type.is_optional_pointer():
 252                 print
 253                 print "    ovs_assert(inited);"
 254                 print "    if (datum->n >= 1) {"
 255                 if not type.key.ref_table:
 256                     print "        %s = datum->keys[0].%s;" % (keyVar, type.key.type.to_string())
 257                 else:
 258                     print "        %s = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->keys[0].uuid));" % (keyVar, prefix, type.key.ref_table.name.lower(), prefix, prefix.upper(), type.key.ref_table.name.upper())
 259
 260                 if valueVar:
 261                     if type.value.ref_table:
 262                         print "        %s = datum->values[0].%s;" % (valueVar, type.value.type.to_string())
 263                     else:
 264                         print "        %s = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->values[0].uuid));" % (valueVar, prefix, type.value.ref_table.name.lower(), prefix, prefix.upper(), type.value.ref_table.name.upper())
 265                 print "    } else {"
 266                 print "        %s" % type.key.initCDefault(keyVar, type.n_min == 0)
 267                 if valueVar:
 268                     print "        %s" % type.value.initCDefault(valueVar, type.n_min == 0)
 269                 print "    }"
 270             else:
 271                 if type.n_max != sys.maxint:
 272                     print "    size_t n = MIN(%d, datum->n);" % type.n_max
 273                     nMax = "n"
 274                 else:
 275                     nMax = "datum->n"
 276                 print "    size_t i;"
 277                 print
 278                 print "    ovs_assert(inited);"
 279                 print "    %s = NULL;" % keyVar
 280                 if valueVar:
 281                     print "    %s = NULL;" % valueVar
 282                 print "    row->n_%s = 0;" % columnName
 283                 print "    for (i = 0; i < %s; i++) {" % nMax
 284                 refs = []
 285                 if type.key.ref_table:
 286                     print "        struct %s%s *keyRow = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->keys[i].uuid));" % (prefix, type.key.ref_table.name.lower(), prefix, type.key.ref_table.name.lower(), prefix, prefix.upper(), type.key.ref_table.name.upper())
 287                     keySrc = "keyRow"
 288                     refs.append('keyRow')
 289                 else:
 290                     keySrc = "datum->keys[i].%s" % type.key.type.to_string()
 291                 if type.value and type.value.ref_table:
 292                     print "        struct %s%s *valueRow = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->values[i].uuid));" % (prefix, type.value.ref_table.name.lower(), prefix, type.value.ref_table.name.lower(), prefix, prefix.upper(), type.value.ref_table.name.upper())
 293                     valueSrc = "valueRow"
 294                     refs.append('valueRow')
 295                 elif valueVar:
 296                     valueSrc = "datum->values[i].%s" % type.value.type.to_string()
 297                 if refs:
 298                     print "        if (%s) {" % ' && '.join(refs)
 299                     indent = "            "
 300                 else:
 301                     indent = "        "
 302                 print "%sif (!row->n_%s) {" % (indent, columnName)
 303
 304                 # Special case for boolean types.  This is only here because
 305                 # sparse does not like the "normal" case ("warning: expression
 306                 # using sizeof bool").
 307                 if type.key.type == ovs.db.types.BooleanType:
 308                     sizeof = "sizeof_bool"
 309                 else:
 310                     sizeof = "sizeof *%s" % keyVar
 311                 print "%s    %s = xmalloc(%s * %s);" % (indent, keyVar, nMax,
 312                                                         sizeof)
 313                 if valueVar:
 314                     # Special case for boolean types (see above).
 315                     if type.value.type == ovs.db.types.BooleanType:
 316                         sizeof = " * sizeof_bool"
 317                     else:
 318                         sizeof = "sizeof *%s" % valueVar
 319                     print "%s    %s = xmalloc(%s * %s);" % (indent, valueVar,
 320                                                             nMax, sizeof)
 321                 print "%s}" % indent
 322                 print "%s%s[row->n_%s] = %s;" % (indent, keyVar, columnName, keySrc)
 323                 if valueVar:
 324                     print "%s%s[row->n_%s] = %s;" % (indent, valueVar, columnName, valueSrc)
 325                 print "%srow->n_%s++;" % (indent, columnName)
 326                 if refs:
 327                     print "        }"
 328                 print "    }"
 329             print "}"
 330
 331         # Unparse functions.
 332         for columnName, column in sorted(table.columns.iteritems()):
 333             type = column.type
 334             if type.is_smap() or (type.n_min != 1 or type.n_max != 1) and not type.is_optional_pointer():
 335                 print '''
 336 static void
 337 %(s)s_unparse_%(c)s(struct ovsdb_idl_row *row_)
 338 {
 339     struct %(s)s *row = %(s)s_cast(row_);
 340
 341     ovs_assert(inited);''' % {'s': structName, 'c': columnName}
 342
 343                 if type.is_smap():
 344                     print "    smap_destroy(&row->%s);" % columnName
 345                 else:
 346                     if type.value:
 347                         keyVar = "row->key_%s" % columnName
 348                         valueVar = "row->value_%s" % columnName
 349                     else:
 350                         keyVar = "row->%s" % columnName
 351                         valueVar = None
 352                     print "    free(%s);" % keyVar
 353                     if valueVar:
 354                         print "    free(%s);" % valueVar
 355                 print '}'
 356             else:
 357                 print '''
 358 static void
 359 %(s)s_unparse_%(c)s(struct ovsdb_idl_row *row OVS_UNUSED)
 360 {
 361     /* Nothing to do. */
 362 }''' % {'s': structName, 'c': columnName}
 363
 364         # Generic Row Initialization function.
 365         print """
 366 static void
 367 %(s)s_init__(struct ovsdb_idl_row *row)
 368 {
 369     %(s)s_init(%(s)s_cast(row));
 370 }""" % {'s': structName}
 371
 372         # Row Initialization function.
 373         print """
 374 void
 375 %(s)s_init(struct %(s)s *row)
 376 {
 377     memset(row, 0, sizeof *row); """ % {'s': structName}
 378         for columnName, column in sorted(table.columns.iteritems()):
 379             if column.type.is_smap():
 380                 print "    smap_init(&row->%s);" % columnName
 381         print "}"
 382
 383         # First, next functions.
 384         print '''
 385 const struct %(s)s *
 386 %(s)s_get_for_uuid(const struct ovsdb_idl *idl, const struct uuid *uuid)
 387 {
 388     return %(s)s_cast(ovsdb_idl_get_row_for_uuid(idl, &%(p)stable_classes[%(P)sTABLE_%(T)s], uuid));
 389 }
 390
 391 const struct %(s)s *
 392 %(s)s_first(const struct ovsdb_idl *idl)
 393 {
 394     return %(s)s_cast(ovsdb_idl_first_row(idl, &%(p)stable_classes[%(P)sTABLE_%(T)s]));
 395 }
 396
 397 const struct %(s)s *
 398 %(s)s_next(const struct %(s)s *row)
 399 {
 400     return %(s)s_cast(ovsdb_idl_next_row(&row->header_));
 401 }''' % {'s': structName,
 402         'p': prefix,
 403         'P': prefix.upper(),
 404         'T': tableName.upper()}
 405
 406         print '''
 407 void
 408 %(s)s_delete(const struct %(s)s *row)
 409 {
 410     ovsdb_idl_txn_delete(&row->header_);
 411 }
 412
 413 struct %(s)s *
 414 %(s)s_insert(struct ovsdb_idl_txn *txn)
 415 {
 416     return %(s)s_cast(ovsdb_idl_txn_insert(txn, &%(p)stable_classes[%(P)sTABLE_%(T)s], NULL));
 417 }
 418 ''' % {'s': structName,
 419        'p': prefix,
 420        'P': prefix.upper(),
 421        'T': tableName.upper()}
 422
 423         # Verify functions.
 424         for columnName, column in sorted(table.columns.iteritems()):
 425             print '''
 426 void
 427 %(s)s_verify_%(c)s(const struct %(s)s *row)
 428 {
 429     ovs_assert(inited);
 430     ovsdb_idl_txn_verify(&row->header_, &%(s)s_columns[%(S)s_COL_%(C)s]);
 431 }''' % {'s': structName,
 432         'S': structName.upper(),
 433         'c': columnName,
 434         'C': columnName.upper()}
 435
 436         # Get functions.
 437         for columnName, column in sorted(table.columns.iteritems()):
 438             if column.type.value:
 439                 valueParam = ',\n\tenum ovsdb_atomic_type value_type OVS_UNUSED'
 440                 valueType = '\n    ovs_assert(value_type == %s);' % column.type.value.toAtomicType()
 441                 valueComment = "\n * 'value_type' must be %s." % column.type.value.toAtomicType()
 442             else:
 443                 valueParam = ''
 444                 valueType = ''
 445                 valueComment = ''
 446             print """
 447 /* Returns the %(c)s column's value in 'row' as a struct ovsdb_datum.
 448  * This is useful occasionally: for example, ovsdb_datum_find_key() is an
 449  * easier and more efficient way to search for a given key than implementing
 450  * the same operation on the "cooked" form in 'row'.
 451  *
 452  * 'key_type' must be %(kt)s.%(vc)s
 453  * (This helps to avoid silent bugs if someone changes %(c)s's
 454  * type without updating the caller.)
 455  *
 456  * The caller must not modify or free the returned value.
 457  *
 458  * Various kinds of changes can invalidate the returned value: modifying
 459  * 'column' within 'row', deleting 'row', or completing an ongoing transaction.
 460  * If the returned value is needed for a long time, it is best to make a copy
 461  * of it with ovsdb_datum_clone(). */
 462 const struct ovsdb_datum *
 463 %(s)s_get_%(c)s(const struct %(s)s *row,
 464 \tenum ovsdb_atomic_type key_type OVS_UNUSED%(v)s)
 465 {
 466     ovs_assert(key_type == %(kt)s);%(vt)s
 467     return ovsdb_idl_read(&row->header_, &%(s)s_col_%(c)s);
 468 }""" % {'s': structName, 'c': columnName,
 469        'kt': column.type.key.toAtomicType(),
 470        'v': valueParam, 'vt': valueType, 'vc': valueComment}
 471
 472         # Set functions.
 473         for columnName, column in sorted(table.columns.iteritems()):
 474             type = column.type
 475
 476             if type.is_smap():
 477                 print """
 478 void
 479 %(s)s_set_%(c)s(const struct %(s)s *row, const struct smap *smap)
 480 {
 481     struct ovsdb_datum datum;
 482
 483     ovs_assert(inited);
 484     if (smap) {
 485         struct smap_node *node;
 486         size_t i;
 487
 488         datum.n = smap_count(smap);
 489         datum.keys = xmalloc(datum.n * sizeof *datum.keys);
 490         datum.values = xmalloc(datum.n * sizeof *datum.values);
 491
 492         i = 0;
 493         SMAP_FOR_EACH (node, smap) {
 494             datum.keys[i].string = xstrdup(node->key);
 495             datum.values[i].string = xstrdup(node->value);
 496             i++;
 497         }
 498         ovsdb_datum_sort_unique(&datum, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
 499     } else {
 500         ovsdb_datum_init_empty(&datum);
 501     }
 502     ovsdb_idl_txn_write(&row->header_,
 503                         &%(s)s_columns[%(S)s_COL_%(C)s],
 504                         &datum);
 505 }
 506 """ % {'s': structName,
 507        'S': structName.upper(),
 508        'c': columnName,
 509        'C': columnName.upper()}
 510                 continue
 511
 512
 513             print '\nvoid'
 514             members = cMembers(prefix, columnName, column, True)
 515             keyVar = members[0]['name']
 516             nVar = None
 517             valueVar = None
 518             if type.value:
 519                 valueVar = members[1]['name']
 520                 if len(members) > 2:
 521                     nVar = members[2]['name']
 522             else:
 523                 if len(members) > 1:
 524                     nVar = members[1]['name']
 525             print '%(s)s_set_%(c)s(const struct %(s)s *row, %(args)s)' % \
 526                 {'s': structName, 'c': columnName,
 527                  'args': ', '.join(['%(type)s%(name)s' % m for m in members])}
 528             print "{"
 529             print "    struct ovsdb_datum datum;"
 530             if type.n_min == 1 and type.n_max == 1:
 531                 print "    union ovsdb_atom key;"
 532                 if type.value:
 533                     print "    union ovsdb_atom value;"
 534                 print
 535                 print "    ovs_assert(inited);"
 536                 print "    datum.n = 1;"
 537                 print "    datum.keys = &key;"
 538                 print "    " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), keyVar)
 539                 if type.value:
 540                     print "    datum.values = &value;"
 541                     print "    "+ type.value.assign_c_value_casting_away_const("value.%s" % type.value.type.to_string(), valueVar)
 542                 else:
 543                     print "    datum.values = NULL;"
 544                 txn_write_func = "ovsdb_idl_txn_write_clone"
 545             elif type.is_optional_pointer():
 546                 print "    union ovsdb_atom key;"
 547                 print
 548                 print "    ovs_assert(inited);"
 549                 print "    if (%s) {" % keyVar
 550                 print "        datum.n = 1;"
 551                 print "        datum.keys = &key;"
 552                 print "        " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), keyVar)
 553                 print "    } else {"
 554                 print "        datum.n = 0;"
 555                 print "        datum.keys = NULL;"
 556                 print "    }"
 557                 print "    datum.values = NULL;"
 558                 txn_write_func = "ovsdb_idl_txn_write_clone"
 559             elif type.n_max == 1:
 560                 print "    union ovsdb_atom key;"
 561                 print
 562                 print "    ovs_assert(inited);"
 563                 print "    if (%s) {" % nVar
 564                 print "        datum.n = 1;"
 565                 print "        datum.keys = &key;"
 566                 print "        " + type.key.assign_c_value_casting_away_const("key.%s" % type.key.type.to_string(), "*" + keyVar)
 567                 print "    } else {"
 568                 print "        datum.n = 0;"
 569                 print "        datum.keys = NULL;"
 570                 print "    }"
 571                 print "    datum.values = NULL;"
 572                 txn_write_func = "ovsdb_idl_txn_write_clone"
 573             else:
 574                 print "    size_t i;"
 575                 print
 576                 print "    ovs_assert(inited);"
 577                 print "    datum.n = %s;" % nVar
 578                 print "    datum.keys = %s ? xmalloc(%s * sizeof *datum.keys) : NULL;" % (nVar, nVar)
 579                 if type.value:
 580                     print "    datum.values = xmalloc(%s * sizeof *datum.values);" % nVar
 581                 else:
 582                     print "    datum.values = NULL;"
 583                 print "    for (i = 0; i < %s; i++) {" % nVar
 584                 print "        " + type.key.copyCValue("datum.keys[i].%s" % type.key.type.to_string(), "%s[i]" % keyVar)
 585                 if type.value:
 586                     print "        " + type.value.copyCValue("datum.values[i].%s" % type.value.type.to_string(), "%s[i]" % valueVar)
 587                 print "    }"
 588                 if type.value:
 589                     valueType = type.value.toAtomicType()
 590                 else:
 591                     valueType = "OVSDB_TYPE_VOID"
 592                 print "    ovsdb_datum_sort_unique(&datum, %s, %s);" % (
 593                     type.key.toAtomicType(), valueType)
 594                 txn_write_func = "ovsdb_idl_txn_write"
 595             print "    %(f)s(&row->header_, &%(s)s_columns[%(S)s_COL_%(C)s], &datum);" \
 596                 % {'f': txn_write_func,
 597                    's': structName,
 598                    'S': structName.upper(),
 599                    'C': columnName.upper()}
 600             print "}"
 601
 602         # Table columns.
 603         print "\nstruct ovsdb_idl_column %s_columns[%s_N_COLUMNS];" % (
 604             structName, structName.upper())
 605         print """
 606 static void\n%s_columns_init(void)
 607 {
 608     struct ovsdb_idl_column *c;\
 609 """ % structName
 610         for columnName, column in sorted(table.columns.iteritems()):
 611             cs = "%s_col_%s" % (structName, columnName)
 612             d = {'cs': cs, 'c': columnName, 's': structName}
 613             if column.mutable:
 614                 mutable = "true"
 615             else:
 616                 mutable = "false"
 617             print
 618             print "    /* Initialize %(cs)s. */" % d
 619             print "    c = &%(cs)s;" % d
 620             print "    c->name = \"%(c)s\";" % d
 621             print column.type.cInitType("    ", "c->type")
 622             print "    c->mutable = %s;" % mutable
 623             print "    c->parse = %(s)s_parse_%(c)s;" % d
 624             print "    c->unparse = %(s)s_unparse_%(c)s;" % d
 625         print "}"
 626
 627     # Table classes.
 628     print "\f"
 629     print "struct ovsdb_idl_table_class %stable_classes[%sN_TABLES] = {" % (prefix, prefix.upper())
 630     for tableName, table in sorted(schema.tables.iteritems()):
 631         structName = "%s%s" % (prefix, tableName.lower())
 632         if table.is_root:
 633             is_root = "true"
 634         else:
 635             is_root = "false"
 636         print "    {\"%s\", %s," % (tableName, is_root)
 637         print "     %s_columns, ARRAY_SIZE(%s_columns)," % (
 638             structName, structName)
 639         print "     sizeof(struct %s), %s_init__}," % (structName, structName)
 640     print "};"
 641
 642     # IDL class.
 643     print "\nstruct ovsdb_idl_class %sidl_class = {" % prefix
 644     print "    \"%s\", %stable_classes, ARRAY_SIZE(%stable_classes)" % (
 645         schema.name, prefix, prefix)
 646     print "};"
 647
 648     # global init function
 649     print """
 650 void
 651 %sinit(void)
 652 {
 653     if (inited) {
 654         return;
 655     }
 656     assert_single_threaded();
 657     inited = true;
 658 """ % prefix
 659     for tableName, table in sorted(schema.tables.iteritems()):
 660         structName = "%s%s" % (prefix, tableName.lower())
 661         print "    %s_columns_init();" % structName
 662     print "}"
 663
 664     print """
 665 /* Return the schema version.  The caller must not free the returned value. */
 666 const char *
 667 %sget_db_version(void)
 668 {
 669     return "%s";
 670 }
 671 """ % (prefix, schema.version)
 672
 673
 674
 675 def ovsdb_escape(string):
 676     def escape(match):
 677         c = match.group(0)
 678         if c == '\0':
 679             raise ovs.db.error.Error("strings may not contain null bytes")
 680         elif c == '\\':
 681             return '\\\\'
 682         elif c == '\n':
 683             return '\\n'
 684         elif c == '\r':
 685             return '\\r'
 686         elif c == '\t':
 687             return '\\t'
 688         elif c == '\b':
 689             return '\\b'
 690         elif c == '\a':
 691             return '\\a'
 692         else:
 693             return '\\x%02x' % ord(c)
 694     return re.sub(r'["\\\000-\037]', escape, string)
 695
 696 def usage():
 697     print """\
 698 %(argv0)s: ovsdb schema compiler
 699 usage: %(argv0)s [OPTIONS] COMMAND ARG...
 700
 701 The following commands are supported:
 702   annotate SCHEMA ANNOTATIONS print SCHEMA combined with ANNOTATIONS
 703   c-idl-header IDL            print C header file for IDL
 704   c-idl-source IDL            print C source file for IDL implementation
 705   nroff IDL                   print schema documentation in nroff format
 706
 707 The following options are also available:
 708   -h, --help                  display this help message
 709   -V, --version               display version information\
 710 """ % {'argv0': argv0}
 711     sys.exit(0)
 712
 713 if __name__ == "__main__":
 714     try:
 715         try:
 716             options, args = getopt.gnu_getopt(sys.argv[1:], 'C:hV',
 717                                               ['directory',
 718                                                'help',
 719                                                'version'])
 720         except getopt.GetoptError, geo:
 721             sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
 722             sys.exit(1)
 723
 724         for key, value in options:
 725             if key in ['-h', '--help']:
 726                 usage()
 727             elif key in ['-V', '--version']:
 728                 print "ovsdb-idlc (Open vSwitch) @VERSION@"
 729             elif key in ['-C', '--directory']:
 730                 os.chdir(value)
 731             else:
 732                 sys.exit(0)
 733
 734         optKeys = [key for key, value in options]
 735
 736         if not args:
 737             sys.stderr.write("%s: missing command argument "
 738                              "(use --help for help)\n" % argv0)
 739             sys.exit(1)
 740
 741         commands = {"annotate": (annotateSchema, 2),
 742                     "c-idl-header": (printCIDLHeader, 1),
 743                     "c-idl-source": (printCIDLSource, 1)}
 744
 745         if not args[0] in commands:
 746             sys.stderr.write("%s: unknown command \"%s\" "
 747                              "(use --help for help)\n" % (argv0, args[0]))
 748             sys.exit(1)
 749
 750         func, n_args = commands[args[0]]
 751         if len(args) - 1 != n_args:
 752             sys.stderr.write("%s: \"%s\" requires %d arguments but %d "
 753                              "provided\n"
 754                              % (argv0, args[0], n_args, len(args) - 1))
 755             sys.exit(1)
 756
 757         func(*args[1:])
 758     except ovs.db.error.Error, e:
 759         sys.stderr.write("%s: %s\n" % (argv0, e))
 760         sys.exit(1)
 761
 762 # Local variables:
 763 # mode: python
 764 # End: