14 def parseSchema(filename):
15 return ovs.db.schema.IdlSchema.from_json(ovs.json.from_file(filename))
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)
22 def constify(cType, const):
23 if (const and cType.endswith('*') and not cType.endswith('**')):
24 return 'const %s' % cType
28 def cMembers(prefix, columnName, column, const):
30 if is_optional_bool(type):
32 if type.n_min == 1 and type.n_max == 1:
37 if type.is_optional_pointer():
43 key = {'name': "key_%s" % columnName,
44 'type': constify(type.key.toCType(prefix) + pointer, const),
46 value = {'name': "value_%s" % columnName,
47 'type': constify(type.value.toCType(prefix) + pointer, const),
49 members = [key, value]
51 m = {'name': columnName,
52 'type': constify(type.key.toCType(prefix) + pointer, const),
53 'comment': type.cDeclComment()}
56 if not singleton and not type.is_optional_pointer():
57 members.append({'name': 'n_%s' % columnName,
62 def printCIDLHeader(schemaFile):
63 schema = parseSchema(schemaFile)
64 prefix = schema.idlPrefix
66 /* Generated automatically -- do not modify! -*- buffer-read-only: t -*- */
68 #ifndef %(prefix)sIDL_HEADER
69 #define %(prefix)sIDL_HEADER 1
74 #include "ovsdb-data.h"
75 #include "ovsdb-idl-provider.h"
76 #include "uuid.h"''' % {'prefix': prefix.upper()}
78 for tableName, table in sorted(schema.tables.iteritems()):
79 structName = "%s%s" % (prefix, tableName.lower())
82 print "/* %s table. */" % tableName
83 print "struct %s {" % structName
84 print "\tstruct ovsdb_idl_row header_;"
85 for columnName, column in sorted(table.columns.iteritems()):
86 print "\n\t/* %s column. */" % columnName
87 for member in cMembers(prefix, columnName, column, False):
88 print "\t%(type)s%(name)s;%(comment)s" % member
92 printEnum(["%s_COL_%s" % (structName.upper(), columnName.upper())
93 for columnName in sorted(table.columns)]
94 + ["%s_N_COLUMNS" % structName.upper()])
97 for columnName in table.columns:
98 print "#define %(s)s_col_%(c)s (%(s)s_columns[%(S)s_COL_%(C)s])" % {
100 'S': structName.upper(),
102 'C': columnName.upper()}
104 print "\nextern struct ovsdb_idl_column %s_columns[%s_N_COLUMNS];" % (structName, structName.upper())
107 const struct %(s)s *%(s)s_first(const struct ovsdb_idl *);
108 const struct %(s)s *%(s)s_next(const struct %(s)s *);
109 #define %(S)s_FOR_EACH(ROW, IDL) \\
110 for ((ROW) = %(s)s_first(IDL); \\
112 (ROW) = %(s)s_next(ROW))
113 #define %(S)s_FOR_EACH_SAFE(ROW, NEXT, IDL) \\
114 for ((ROW) = %(s)s_first(IDL); \\
115 (ROW) ? ((NEXT) = %(s)s_next(ROW), 1) : 0; \\
118 void %(s)s_delete(const struct %(s)s *);
119 struct %(s)s *%(s)s_insert(struct ovsdb_idl_txn *);
120 ''' % {'s': structName, 'S': structName.upper()}
122 for columnName, column in sorted(table.columns.iteritems()):
123 print 'void %(s)s_verify_%(c)s(const struct %(s)s *);' % {'s': structName, 'c': columnName}
126 /* Functions for fetching columns as \"struct ovsdb_datum\"s. (This is
127 rarely useful. More often, it is easier to access columns by using
128 the members of %(s)s directly.) */""" % {'s': structName}
129 for columnName, column in sorted(table.columns.iteritems()):
130 if column.type.value:
131 valueParam = ', enum ovsdb_atomic_type value_type'
134 print 'const struct ovsdb_datum *%(s)s_get_%(c)s(const struct %(s)s *, enum ovsdb_atomic_type key_type%(v)s);' % {
135 's': structName, 'c': columnName, 'v': valueParam}
138 for columnName, column in sorted(table.columns.iteritems()):
140 print 'void %(s)s_set_%(c)s(const struct %(s)s *,' % {'s': structName, 'c': columnName},
141 args = ['%(type)s%(name)s' % member for member
142 in cMembers(prefix, columnName, column, True)]
143 print '%s);' % ', '.join(args)
146 printEnum(["%sTABLE_%s" % (prefix.upper(), tableName.upper()) for tableName in sorted(schema.tables)] + ["%sN_TABLES" % prefix.upper()])
148 for tableName in schema.tables:
149 print "#define %(p)stable_%(t)s (%(p)stable_classes[%(P)sTABLE_%(T)s])" % {
152 't': tableName.lower(),
153 'T': tableName.upper()}
154 print "\nextern struct ovsdb_idl_table_class %stable_classes[%sN_TABLES];" % (prefix, prefix.upper())
156 print "\nextern struct ovsdb_idl_class %sidl_class;" % prefix
157 print "\nvoid %sinit(void);" % prefix
158 print "\n#endif /* %(prefix)sIDL_HEADER */" % {'prefix': prefix.upper()}
160 def printEnum(members):
161 if len(members) == 0:
165 for member in members[:-1]:
166 print " %s," % member
167 print " %s" % members[-1]
170 def is_optional_bool(type):
171 return (type.key.type == ovs.db.types.BooleanType and not type.value
172 and type.n_min == 0 and type.n_max == 1)
174 def printCIDLSource(schemaFile):
175 schema = parseSchema(schemaFile)
176 prefix = schema.idlPrefix
178 /* Generated automatically -- do not modify! -*- buffer-read-only: t -*- */
184 #include "ovsdb-data.h"
185 #include "ovsdb-error.h"
188 ''' % schema.idlHeader
191 for tableName, table in sorted(schema.tables.iteritems()):
192 structName = "%s%s" % (prefix, tableName.lower())
194 static struct %(s)s *
195 %(s)s_cast(const struct ovsdb_idl_row *row)
197 return row ? CONTAINER_OF(row, struct %(s)s, header_) : NULL;
199 ''' % {'s': structName}
202 for tableName, table in sorted(schema.tables.iteritems()):
203 structName = "%s%s" % (prefix, tableName.lower())
205 print "/* %s table. */" % (tableName)
208 for columnName, column in sorted(table.columns.iteritems()):
211 %(s)s_parse_%(c)s(struct ovsdb_idl_row *row_, const struct ovsdb_datum *datum)
213 struct %(s)s *row = %(s)s_cast(row_);''' % {'s': structName,
218 keyVar = "row->key_%s" % columnName
219 valueVar = "row->value_%s" % columnName
221 keyVar = "row->%s" % columnName
224 if is_optional_bool(type):
225 # Special case for an optional bool. This is only here because
226 # sparse does not like the "normal" case below ("warning:
227 # expression using sizeof bool").
229 print " assert(inited);"
230 print " if (datum->n >= 1) {"
231 print " static const bool false_value = false;"
232 print " static const bool true_value = true;"
234 print " row->n_%s = 1;" % columnName
235 print " %s = datum->keys[0].boolean ? &true_value : &false_value;" % keyVar
237 print " row->n_%s = 0;" % columnName
238 print " %s = NULL;" % keyVar
240 elif (type.n_min == 1 and type.n_max == 1) or type.is_optional_pointer():
242 print " assert(inited);"
243 print " if (datum->n >= 1) {"
244 if not type.key.ref_table:
245 print " %s = datum->keys[0].%s;" % (keyVar, type.key.type.to_string())
247 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())
250 if type.value.ref_table:
251 print " %s = datum->values[0].%s;" % (valueVar, type.value.type.to_string())
253 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())
255 print " %s" % type.key.initCDefault(keyVar, type.n_min == 0)
257 print " %s" % type.value.initCDefault(valueVar, type.n_min == 0)
260 if type.n_max != sys.maxint:
261 print " size_t n = MIN(%d, datum->n);" % type.n_max
267 print " assert(inited);"
268 print " %s = NULL;" % keyVar
270 print " %s = NULL;" % valueVar
271 print " row->n_%s = 0;" % columnName
272 print " for (i = 0; i < %s; i++) {" % nMax
274 if type.key.ref_table:
275 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())
277 refs.append('keyRow')
279 keySrc = "datum->keys[i].%s" % type.key.type.to_string()
280 if type.value and type.value.ref_table:
281 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())
282 valueSrc = "valueRow"
283 refs.append('valueRow')
285 valueSrc = "datum->values[i].%s" % type.value.type.to_string()
287 print " if (%s) {" % ' && '.join(refs)
291 print "%sif (!row->n_%s) {" % (indent, columnName)
292 print "%s %s = xmalloc(%s * sizeof *%s);" % (indent, keyVar, nMax, keyVar)
294 print "%s %s = xmalloc(%s * sizeof *%s);" % (indent, valueVar, nMax, valueVar)
296 print "%s%s[row->n_%s] = %s;" % (indent, keyVar, columnName, keySrc)
298 print "%s%s[row->n_%s] = %s;" % (indent, valueVar, columnName, valueSrc)
299 print "%srow->n_%s++;" % (indent, columnName)
306 for columnName, column in sorted(table.columns.iteritems()):
308 if (type.key.type == ovs.db.types.BooleanType and not type.value
309 and type.n_min == 0 and type.n_max == 1):
312 %(s)s_unparse_%(c)s(struct ovsdb_idl_row *row OVS_UNUSED)
315 }''' % {'s': structName, 'c': columnName}
316 elif (type.n_min != 1 or type.n_max != 1) and not type.is_optional_pointer():
319 %(s)s_unparse_%(c)s(struct ovsdb_idl_row *row_)
321 struct %(s)s *row = %(s)s_cast(row_);
323 assert(inited);''' % {'s': structName, 'c': columnName}
325 keyVar = "row->key_%s" % columnName
326 valueVar = "row->value_%s" % columnName
328 keyVar = "row->%s" % columnName
330 print " free(%s);" % keyVar
332 print " free(%s);" % valueVar
337 %(s)s_unparse_%(c)s(struct ovsdb_idl_row *row OVS_UNUSED)
340 }''' % {'s': structName, 'c': columnName}
342 # First, next functions.
345 %(s)s_first(const struct ovsdb_idl *idl)
347 return %(s)s_cast(ovsdb_idl_first_row(idl, &%(p)stable_classes[%(P)sTABLE_%(T)s]));
351 %(s)s_next(const struct %(s)s *row)
353 return %(s)s_cast(ovsdb_idl_next_row(&row->header_));
354 }''' % {'s': structName,
357 'T': tableName.upper()}
361 %(s)s_delete(const struct %(s)s *row)
363 ovsdb_idl_txn_delete(&row->header_);
367 %(s)s_insert(struct ovsdb_idl_txn *txn)
369 return %(s)s_cast(ovsdb_idl_txn_insert(txn, &%(p)stable_classes[%(P)sTABLE_%(T)s], NULL));
371 ''' % {'s': structName,
374 'T': tableName.upper()}
377 for columnName, column in sorted(table.columns.iteritems()):
380 %(s)s_verify_%(c)s(const struct %(s)s *row)
383 ovsdb_idl_txn_verify(&row->header_, &%(s)s_columns[%(S)s_COL_%(C)s]);
384 }''' % {'s': structName,
385 'S': structName.upper(),
387 'C': columnName.upper()}
390 for columnName, column in sorted(table.columns.iteritems()):
391 if column.type.value:
392 valueParam = ',\n\tenum ovsdb_atomic_type value_type OVS_UNUSED'
393 valueType = '\n assert(value_type == %s);' % column.type.value.toAtomicType()
394 valueComment = "\n * 'value_type' must be %s." % column.type.value.toAtomicType()
400 /* Returns the %(c)s column's value in 'row' as a struct ovsdb_datum.
401 * This is useful occasionally: for example, ovsdb_datum_find_key() is an
402 * easier and more efficient way to search for a given key than implementing
403 * the same operation on the "cooked" form in 'row'.
405 * 'key_type' must be %(kt)s.%(vc)s
406 * (This helps to avoid silent bugs if someone changes %(c)s's
407 * type without updating the caller.)
409 * The caller must not modify or free the returned value.
411 * Various kinds of changes can invalidate the returned value: modifying
412 * 'column' within 'row', deleting 'row', or completing an ongoing transaction.
413 * If the returned value is needed for a long time, it is best to make a copy
414 * of it with ovsdb_datum_clone(). */
415 const struct ovsdb_datum *
416 %(s)s_get_%(c)s(const struct %(s)s *row,
417 \tenum ovsdb_atomic_type key_type OVS_UNUSED%(v)s)
419 assert(key_type == %(kt)s);%(vt)s
420 return ovsdb_idl_read(&row->header_, &%(s)s_col_%(c)s);
421 }""" % {'s': structName, 'c': columnName,
422 'kt': column.type.key.toAtomicType(),
423 'v': valueParam, 'vt': valueType, 'vc': valueComment}
426 for columnName, column in sorted(table.columns.iteritems()):
429 members = cMembers(prefix, columnName, column, True)
430 keyVar = members[0]['name']
434 valueVar = members[1]['name']
436 nVar = members[2]['name']
439 nVar = members[1]['name']
440 print '%(s)s_set_%(c)s(const struct %(s)s *row, %(args)s)' % \
441 {'s': structName, 'c': columnName,
442 'args': ', '.join(['%(type)s%(name)s' % m for m in members])}
444 print " struct ovsdb_datum datum;"
445 if type.n_min == 1 and type.n_max == 1:
447 print " assert(inited);"
448 print " datum.n = 1;"
449 print " datum.keys = xmalloc(sizeof *datum.keys);"
450 print " " + type.key.copyCValue("datum.keys[0].%s" % type.key.type.to_string(), keyVar)
452 print " datum.values = xmalloc(sizeof *datum.values);"
453 print " "+ type.value.copyCValue("datum.values[0].%s" % type.value.type.to_string(), valueVar)
455 print " datum.values = NULL;"
456 elif type.is_optional_pointer():
458 print " assert(inited);"
459 print " if (%s) {" % keyVar
460 print " datum.n = 1;"
461 print " datum.keys = xmalloc(sizeof *datum.keys);"
462 print " " + type.key.copyCValue("datum.keys[0].%s" % type.key.type.to_string(), keyVar)
464 print " datum.n = 0;"
465 print " datum.keys = NULL;"
467 print " datum.values = NULL;"
471 print " assert(inited);"
472 print " datum.n = %s;" % nVar
473 print " datum.keys = xmalloc(%s * sizeof *datum.keys);" % nVar
475 print " datum.values = xmalloc(%s * sizeof *datum.values);" % nVar
477 print " datum.values = NULL;"
478 print " for (i = 0; i < %s; i++) {" % nVar
479 print " " + type.key.copyCValue("datum.keys[i].%s" % type.key.type.to_string(), "%s[i]" % keyVar)
481 print " " + type.value.copyCValue("datum.values[i].%s" % type.value.type.to_string(), "%s[i]" % valueVar)
484 valueType = type.value.toAtomicType()
486 valueType = "OVSDB_TYPE_VOID"
487 print " ovsdb_datum_sort_unique(&datum, %s, %s);" % (
488 type.key.toAtomicType(), valueType)
489 print " ovsdb_idl_txn_write(&row->header_, &%(s)s_columns[%(S)s_COL_%(C)s], &datum);" \
491 'S': structName.upper(),
492 'C': columnName.upper()}
496 print "\nstruct ovsdb_idl_column %s_columns[%s_N_COLUMNS];" % (
497 structName, structName.upper())
499 static void\n%s_columns_init(void)
501 struct ovsdb_idl_column *c;\
503 for columnName, column in sorted(table.columns.iteritems()):
504 cs = "%s_col_%s" % (structName, columnName)
505 d = {'cs': cs, 'c': columnName, 's': structName}
507 print " /* Initialize %(cs)s. */" % d
508 print " c = &%(cs)s;" % d
509 print " c->name = \"%(c)s\";" % d
510 print column.type.cInitType(" ", "c->type")
511 print " c->parse = %(s)s_parse_%(c)s;" % d
512 print " c->unparse = %(s)s_unparse_%(c)s;" % d
517 print "struct ovsdb_idl_table_class %stable_classes[%sN_TABLES] = {" % (prefix, prefix.upper())
518 for tableName, table in sorted(schema.tables.iteritems()):
519 structName = "%s%s" % (prefix, tableName.lower())
524 print " {\"%s\", %s," % (tableName, is_root)
525 print " %s_columns, ARRAY_SIZE(%s_columns)," % (
526 structName, structName)
527 print " sizeof(struct %s)}," % structName
531 print "\nstruct ovsdb_idl_class %sidl_class = {" % prefix
532 print " \"%s\", %stable_classes, ARRAY_SIZE(%stable_classes)" % (
533 schema.name, prefix, prefix)
536 # global init function
546 for tableName, table in sorted(schema.tables.iteritems()):
547 structName = "%s%s" % (prefix, tableName.lower())
548 print " %s_columns_init();" % structName
552 def ovsdb_escape(string):
556 raise ovs.db.error.Error("strings may not contain null bytes")
570 return '\\x%02x' % ord(c)
571 return re.sub(r'["\\\000-\037]', escape, string)
575 %(argv0)s: ovsdb schema compiler
576 usage: %(argv0)s [OPTIONS] COMMAND ARG...
578 The following commands are supported:
579 annotate SCHEMA ANNOTATIONS print SCHEMA combined with ANNOTATIONS
580 c-idl-header IDL print C header file for IDL
581 c-idl-source IDL print C source file for IDL implementation
582 nroff IDL print schema documentation in nroff format
584 The following options are also available:
585 -h, --help display this help message
586 -V, --version display version information\
587 """ % {'argv0': argv0}
590 if __name__ == "__main__":
593 options, args = getopt.gnu_getopt(sys.argv[1:], 'C:hV',
597 except getopt.GetoptError, geo:
598 sys.stderr.write("%s: %s\n" % (argv0, geo.msg))
601 for key, value in options:
602 if key in ['-h', '--help']:
604 elif key in ['-V', '--version']:
605 print "ovsdb-idlc (Open vSwitch) @VERSION@"
606 elif key in ['-C', '--directory']:
611 optKeys = [key for key, value in options]
614 sys.stderr.write("%s: missing command argument "
615 "(use --help for help)\n" % argv0)
618 commands = {"annotate": (annotateSchema, 2),
619 "c-idl-header": (printCIDLHeader, 1),
620 "c-idl-source": (printCIDLSource, 1)}
622 if not args[0] in commands:
623 sys.stderr.write("%s: unknown command \"%s\" "
624 "(use --help for help)\n" % (argv0, args[0]))
627 func, n_args = commands[args[0]]
628 if len(args) - 1 != n_args:
629 sys.stderr.write("%s: \"%s\" requires %d arguments but %d "
631 % (argv0, args[0], n_args, len(args) - 1))
635 except ovs.db.error.Error, e:
636 sys.stderr.write("%s: %s\n" % (argv0, e))