7 sys.path.insert(0, "@abs_top_srcdir@/ovsdb")
8 import simplejson as json
12 class Error(Exception):
13 def __init__(self, msg):
14 Exception.__init__(self)
17 def getMember(json, name, validTypes, description, default=None):
20 if type(member) not in validTypes:
21 raise Error("%s: type mismatch for '%s' member"
22 % (description, name))
26 def mustGetMember(json, name, expectedType, description):
27 member = getMember(json, name, expectedType, description)
29 raise Error("%s: missing '%s' member" % (description, name))
33 def __init__(self, name, comment, tables, idlPrefix, idlHeader):
35 self.comment = comment
37 self.idlPrefix = idlPrefix
38 self.idlHeader = idlHeader
42 name = mustGetMember(json, 'name', [unicode], 'database')
43 comment = getMember(json, 'comment', [unicode], 'database')
44 tablesJson = mustGetMember(json, 'tables', [dict], 'database')
46 for name, tableJson in tablesJson.iteritems():
47 tables[name] = TableSchema.fromJson(tableJson, "%s table" % name)
48 idlPrefix = mustGetMember(json, 'idlPrefix', [unicode], 'database')
49 idlHeader = mustGetMember(json, 'idlHeader', [unicode], 'database')
50 return DbSchema(name, comment, tables, idlPrefix, idlHeader)
53 d = {"name": self.name,
55 for name, table in self.tables.iteritems():
56 d["tables"][name] = table.toJson()
57 if self.comment != None:
58 d["comment"] = self.comment
62 def __init__(self, comment, columns):
63 self.comment = comment
64 self.columns = columns
67 def fromJson(json, description):
68 comment = getMember(json, 'comment', [unicode], description)
69 columnsJson = mustGetMember(json, 'columns', [dict], description)
71 for name, json in columnsJson.iteritems():
72 columns[name] = ColumnSchema.fromJson(
73 json, "column %s in %s" % (name, description))
74 return TableSchema(comment, columns)
78 for name, column in self.columns.iteritems():
79 d["columns"][name] = column.toJson()
80 if self.comment != None:
81 d["comment"] = self.comment
85 def __init__(self, comment, type, persistent):
86 self.comment = comment
88 self.persistent = persistent
91 def fromJson(json, description):
92 comment = getMember(json, 'comment', [unicode], description)
93 type = Type.fromJson(mustGetMember(json, 'type', [dict, unicode],
95 'type of %s' % description)
96 ephemeral = getMember(json, 'ephemeral', [True,False], description)
97 persistent = ephemeral != True
98 return ColumnSchema(comment, type, persistent)
101 d = {"type": self.type.toJson()}
102 if self.persistent == False:
103 d["ephemeral"] = True
104 if self.comment != None:
105 d["comment"] = self.comment
109 def __init__(self, key, keyRefTable=None, value=None, valueRefTable=None,
112 self.keyRefTable = keyRefTable
114 self.valueRefTable = valueRefTable
119 def fromJson(json, description):
120 if type(json) == unicode:
123 key = mustGetMember(json, 'key', [unicode], description)
124 keyRefTable = getMember(json, 'keyRefTable', [unicode], description)
125 value = getMember(json, 'value', [unicode], description)
126 valueRefTable = getMember(json, 'valueRefTable', [unicode], description)
127 min = getMember(json, 'min', [int], description, 1)
128 max = getMember(json, 'max', [int, unicode], description, 1)
129 return Type(key, keyRefTable, value, valueRefTable, min, max)
132 if self.value == None and self.min == 1 and self.max == 1:
135 d = {"key": self.key}
136 if self.value != None:
137 d["value"] = self.value
144 def parseSchema(filename):
145 file = open(filename, "r")
148 if not line.startswith('//'):
150 return DbSchema.fromJson(json.loads(s))
152 def cBaseType(prefix, type, refTable=None):
153 if type == 'uuid' and refTable:
154 return "struct %s%s *" % (prefix, refTable.lower())
156 return {'integer': 'int64_t ',
158 'uuid': 'struct uuid ',
160 'string': 'char *'}[type]
162 def cCopyType(indent, dstVar, dst, src, type, refTable=None):
163 args = {'indent': indent,
167 if type == 'uuid' and refTable:
168 return ("%(indent)s%(dstVar)s = %(src)s;\n" +
169 "%(indent)s%(dst)s = %(src)s->header_.uuid;") % args
170 elif type == 'string':
171 return "%(indent)s%(dstVar)s = %(dst)s = xstrdup(%(src)s);" % args
173 return "%(dstVar)s = %(dst)s = %(src)s;" % args
175 def typeIsOptionalPointer(type):
176 return (type.min == 0 and type.max == 1 and not type.value
177 and (type.key == 'string'
178 or (type.key == 'uuid' and type.keyRefTable)))
180 def cDeclComment(type):
181 if type.min == 1 and type.max == 1 and type.key == "string":
182 return "\t/* Always nonnull. */"
186 def cMembers(prefix, columnName, column):
188 if type.min == 1 and type.max == 1:
193 if typeIsOptionalPointer(type):
199 key = {'name': "key_%s" % columnName,
200 'type': cBaseType(prefix, type.key, type.keyRefTable) + pointer,
202 value = {'name': "value_%s" % columnName,
203 'type': (cBaseType(prefix, type.value, type.valueRefTable)
206 members = [key, value]
208 m = {'name': columnName,
209 'type': cBaseType(prefix, type.key, type.keyRefTable) + pointer,
210 'comment': cDeclComment(type)}
213 if not singleton and not typeIsOptionalPointer(type):
214 members.append({'name': 'n_%s' % columnName,
219 def printCIDLHeader(schema):
220 prefix = schema.idlPrefix
222 /* Generated automatically -- do not modify! -*- buffer-read-only: t -*- */
224 #ifndef %(prefix)sIDL_HEADER
225 #define %(prefix)sIDL_HEADER 1
230 #include "ovsdb-idl-provider.h"
231 #include "uuid.h"''' % {'prefix': prefix.upper()}
232 for tableName, table in schema.tables.iteritems():
234 print "/* %s table. */" % tableName
235 structName = "%s%s" % (prefix, tableName.lower())
236 print "struct %s {" % structName
237 print "\tstruct ovsdb_idl_row header_;"
238 for columnName, column in table.columns.iteritems():
239 print "\n\t/* %s column. */" % columnName
240 for member in cMembers(prefix, columnName, column):
241 print "\t%(type)s%(name)s;%(comment)s" % member
245 const struct %(s)s *%(s)s_first(const struct ovsdb_idl *);
246 const struct %(s)s *%(s)s_next(const struct %(s)s *);
247 #define %(S)s_FOR_EACH(ROW, IDL) for ((ROW) = %(s)s_first(IDL); (ROW); (ROW) = %(s)s_next(ROW))
249 void %(s)s_delete(const struct %(s)s *);
250 struct %(s)s *%(s)s_insert(struct ovsdb_idl_txn *);
251 ''' % {'s': structName, 'S': structName.upper()}
253 for columnName, column in table.columns.iteritems():
254 print 'void %(s)s_verify_%(c)s(const struct %(s)s *);' % {'s': structName, 'c': columnName}
257 for columnName, column in table.columns.iteritems():
259 print 'void %(s)s_set_%(c)s(const struct %(s)s *,' % {'s': structName, 'c': columnName},
260 args = ['%(type)s%(name)s' % member for member
261 in cMembers(prefix, columnName, column)]
262 print '%s);' % ', '.join(args)
264 print "\nextern struct ovsdb_idl_class %sidl_class;" % prefix
265 print "\n#endif /* %(prefix)sIDL_HEADER */" % {'prefix': prefix.upper()}
267 def printEnum(members):
268 if len(members) == 0:
272 for member in members[:-1]:
273 print " %s," % member
274 print " %s" % members[-1]
277 def printCIDLSource(schema):
278 prefix = schema.idlPrefix
280 /* Generated automatically -- do not modify! -*- buffer-read-only: t -*- */
285 #include "ovsdb-data.h"''' % schema.idlHeader
288 printEnum(["%sTABLE_%s" % (prefix.upper(), tableName.upper()) for tableName in schema.tables] + ["%sN_TABLES" % prefix.upper()])
289 print "\nstatic struct ovsdb_idl_table_class %stable_classes[%sN_TABLES];" % (prefix, prefix.upper())
292 for tableName, table in schema.tables.iteritems():
293 structName = "%s%s" % (prefix, tableName.lower())
295 static struct %(s)s *
296 %(s)s_cast(struct ovsdb_idl_row *row)
298 return row ? CONTAINER_OF(row, struct %(s)s, header_) : NULL;
300 ''' % {'s': structName}
303 for tableName, table in schema.tables.iteritems():
304 structName = "%s%s" % (prefix, tableName.lower())
306 if table.comment != None:
307 print "/* %s table (%s). */" % (tableName, table.comment)
309 print "/* %s table. */" % (tableName)
312 printEnum(["%s_COL_%s" % (structName.upper(), columnName.upper())
313 for columnName in table.columns]
314 + ["%s_N_COLUMNS" % structName.upper()])
316 print "\nstatic struct ovsdb_idl_column %s_columns[];" % structName
321 %s_parse(struct ovsdb_idl_row *row_)
323 struct %s *row = %s_cast(row_);
324 const struct ovsdb_datum *datum;
327 memset(row_ + 1, 0, sizeof *row - sizeof *row_);''' % (structName, structName, structName)
330 for columnName, column in table.columns.iteritems():
332 refKey = type.key == "uuid" and type.keyRefTable
333 refValue = type.value == "uuid" and type.valueRefTable
335 print " datum = &row_->old[%s_COL_%s];" % (structName.upper(), columnName.upper())
337 keyVar = "row->key_%s" % columnName
338 valueVar = "row->value_%s" % columnName
340 keyVar = "row->%s" % columnName
343 if (type.min == 1 and type.max == 1) or typeIsOptionalPointer(type):
344 print " if (datum->n >= 1) {"
346 print " %s = datum->keys[0].%s;" % (keyVar, type.key)
348 print " %s = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->keys[0].uuid));" % (keyVar, prefix, type.keyRefTable.lower(), prefix, prefix.upper(), type.keyRefTable.upper())
352 print " %s = datum->values[0].%s;" % (valueVar, type.value)
354 print " %s = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->values[0].uuid));" % (valueVar, prefix, type.valueRefTable.lower(), prefix, prefix.upper(), type.valueRefTable.upper())
355 if (not typeIsOptionalPointer(type) and
356 (type.key == "string" or type.value == "string")):
358 if type.key == "string":
359 print " %s = \"\";" % keyVar
360 if type.value == "string":
361 print " %s = \"\";" % valueVar
365 if type.max != 'unlimited':
366 nMax = "MIN(%d, datum->n)" % type.max
369 print " for (i = 0; i < %s; i++) {" % nMax
372 print " struct %s%s *keyRow = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->keys[i].uuid));" % (prefix, type.keyRefTable.lower(), prefix, type.keyRefTable.lower(), prefix, prefix.upper(), type.keyRefTable.upper())
374 refs.append('keyRow')
376 keySrc = "datum->keys[i].%s" % type.key
378 print " struct %s%s *valueRow = %s%s_cast(ovsdb_idl_get_row_arc(row_, &%stable_classes[%sTABLE_%s], &datum->values[i].uuid));" % (prefix, type.valueRefTable.lower(), prefix, type.valueRefTable.lower(), prefix, prefix.upper(), type.valueRefTable.upper())
379 valueSrc = "valueRow"
380 refs.append('valueRow')
382 valueSrc = "datum->values[i].%s" % type.value
384 print " if (%s) {" % ' && '.join(refs)
388 print "%sif (!row->n_%s) {" % (indent, columnName)
389 print "%s %s = xmalloc(%s * sizeof *%s);" % (indent, keyVar, nMax, keyVar)
391 print "%s %s = xmalloc(%s * sizeof %s);" % (indent, valueVar, nMax, valueVar)
393 print "%s%s[row->n_%s] = %s;" % (indent, keyVar, columnName, keySrc)
395 print "%s%s[row->n_%s] = %s;" % (indent, valueVar, columnName, valueSrc)
396 print "%srow->n_%s++;" % (indent, columnName)
404 for columnName, column in table.columns.iteritems():
406 if (type.min != 1 or type.max != 1) and not typeIsOptionalPointer(type):
410 %s_unparse(struct ovsdb_idl_row *row_)
412 struct %s *row = %s_cast(row_);
413 ''' % (structName, structName, structName)
415 keyVar = "row->key_%s" % columnName
416 valueVar = "row->value_%s" % columnName
418 keyVar = "row->%s" % columnName
420 print " free(%s);" % keyVar
422 print " free(%s);" % valueVar
427 %s_unparse(struct ovsdb_idl_row *row UNUSED)
431 # First, next functions.
434 %(s)s_first(const struct ovsdb_idl *idl)
436 return %(s)s_cast(ovsdb_idl_first_row(idl, &%(p)stable_classes[%(P)sTABLE_%(T)s]));
440 %(s)s_next(const struct %(s)s *row)
442 return %(s)s_cast(ovsdb_idl_next_row(&row->header_));
443 }''' % {'s': structName,
446 'T': tableName.upper()}
450 %(s)s_delete(const struct %(s)s *row_)
452 struct %(s)s *row = (struct %(s)s *) row_;
453 ovsdb_idl_txn_delete(&row->header_);
457 %(s)s_insert(struct ovsdb_idl_txn *txn)
459 return %(s)s_cast(ovsdb_idl_txn_insert(txn, &%(p)stable_classes[%(P)sTABLE_%(T)s]));
461 ''' % {'s': structName,
464 'T': tableName.upper()}
467 for columnName, column in table.columns.iteritems():
470 %(s)s_verify_%(c)s(const struct %(s)s *row)
472 ovsdb_idl_txn_verify(&row->header_, &%(s)s_columns[%(S)s_COL_%(C)s]);
473 }''' % {'s': structName,
474 'S': structName.upper(),
476 'C': columnName.upper()}
479 for columnName, column in table.columns.iteritems():
482 members = cMembers(prefix, columnName, column)
483 keyVar = members[0]['name']
487 valueVar = members[1]['name']
489 nVar = members[2]['name']
492 nVar = members[1]['name']
493 print '%(s)s_set_%(c)s(const struct %(s)s *row_, %(args)s)' % \
494 {'s': structName, 'c': columnName,
495 'args': ', '.join(['%(type)s%(name)s' % m for m in members])}
497 print " struct %(s)s *row = (struct %(s)s *) row_;" % {'s': structName}
498 print " struct ovsdb_datum datum;"
499 if type.min == 1 and type.max == 1:
501 print " datum.n = 1;"
502 print " datum.keys = xmalloc(sizeof *datum.keys);"
503 print cCopyType(" ", "row->%s" % keyVar, "datum.keys[0].%s" % type.key, keyVar, type.key, type.keyRefTable)
505 print " datum.values = xmalloc(sizeof *datum.values);"
506 print cCopyType(" ", "row->%s" % valueVar, "datum.values[0].%s" % type.value, valueVar, type.value, type.valueRefTable)
508 print " datum.values = NULL;"
509 elif typeIsOptionalPointer(type):
511 print " if (%s) {" % keyVar
512 print " datum.n = 1;"
513 print " datum.keys = xmalloc(sizeof *datum.keys);"
514 print cCopyType(" ", "row->%s" % keyVar, "datum.keys[0].%s" % type.key, keyVar, type.key, type.keyRefTable)
516 print " datum.n = 0;"
517 print " datum.keys = NULL;"
518 print " row->%s = NULL;" % keyVar
520 print " datum.values = NULL;"
524 print " free(row->%s);" % keyVar
525 print " row->%s = %s ? xmalloc(%s * sizeof *row->%s) : NULL;" % (keyVar, nVar, nVar, keyVar)
526 print " row->%s = %s;" % (nVar, nVar)
528 print " free(row->%s);" % valueVar
529 print " row->%s = xmalloc(%s * sizeof *row->%s);" % (valueVar, nVar, valueVar)
530 print " datum.n = %s;" % nVar
531 print " datum.keys = xmalloc(%s * sizeof *datum.keys);" % nVar
533 print " datum.values = xmalloc(%s * sizeof *datum.values);" % nVar
535 print " datum.values = NULL;"
536 print " for (i = 0; i < %s; i++) {" % nVar
537 print cCopyType(" ", "row->%s[i]" % keyVar, "datum.keys[i].%s" % type.key, "%s[i]" % keyVar, type.key, type.keyRefTable)
539 print cCopyType(" ", "row->%s[i]" % valueVar, "datum.values[i].%s" % type.value, "%s[i]" % valueVar, type.value, type.valueRefTable)
541 print " ovsdb_idl_txn_write(&row->header_, &%(s)s_columns[%(S)s_COL_%(C)s], &datum);" \
543 'S': structName.upper(),
544 'C': columnName.upper()}
548 print "\nstatic struct ovsdb_idl_column %s_columns[%s_N_COLUMNS] = {" % (
549 structName, structName.upper())
550 for columnName, column in table.columns.iteritems():
554 valueTypeName = type.value.upper()
556 valueTypeName = "VOID"
557 if type.max == "unlimited":
561 print " {\"%s\", {OVSDB_TYPE_%s, OVSDB_TYPE_%s, %d, %s}}," % (
562 columnName, type.key.upper(), valueTypeName,
568 print "static struct ovsdb_idl_table_class %stable_classes[%sN_TABLES] = {" % (prefix, prefix.upper())
569 for tableName, table in schema.tables.iteritems():
570 structName = "%s%s" % (prefix, tableName.lower())
571 print " {\"%s\"," % tableName
572 print " %s_columns, ARRAY_SIZE(%s_columns)," % (
573 structName, structName)
574 print " sizeof(struct %s)," % structName
575 print " %s_parse," % structName
576 print " %s_unparse}," % structName
580 print "\nstruct ovsdb_idl_class %sidl_class = {" % prefix
581 print " %stable_classes, ARRAY_SIZE(%stable_classes)" % (prefix, prefix)
584 def ovsdb_escape(string):
588 raise Error("strings may not contain null bytes")
602 return '\\x%02x' % ord(c)
603 return re.sub(r'["\\\000-\037]', escape, string)
605 def printOVSDBSchema(schema):
606 json.dump(schema.toJson(), sys.stdout, sort_keys=True, indent=2)
610 %(argv0)s: ovsdb schema compiler
611 usage: %(argv0)s [OPTIONS] ACTION SCHEMA
612 where SCHEMA is the ovsdb schema to read (in JSON format).
614 One of the following actions must specified:
615 validate validate schema without taking any other action
616 c-idl-header print C header file for IDL
617 c-idl-source print C source file for IDL implementation
618 ovsdb-schema print ovsdb parseable schema
620 The following options are also available:
621 -h, --help display this help message
622 -V, --version display version information\
623 """ % {'argv0': argv0}
626 if __name__ == "__main__":
629 options, args = getopt.gnu_getopt(sys.argv[1:], 'hV',
632 except getopt.GetoptError, geo:
633 sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
636 optKeys = [key for key, value in options]
637 if '-h' in optKeys or '--help' in optKeys:
639 elif '-V' in optKeys or '--version' in optKeys:
640 print "ovsdb-idlc (Open vSwitch) @VERSION@"
644 sys.stderr.write("%s: exactly two non-option arguments are "
645 "required (use --help for help)\n" % argv0)
648 action, inputFile = args
649 schema = parseSchema(inputFile)
650 if action == 'validate':
652 elif action == 'ovsdb-schema':
653 printOVSDBSchema(schema)
654 elif action == 'c-idl-header':
655 printCIDLHeader(schema)
656 elif action == 'c-idl-source':
657 printCIDLSource(schema)
660 "%s: unknown action '%s' (use --help for help)\n" %
664 sys.stderr.write("%s: %s\n" % (argv0, e.msg))